PrepareProposal-VoteExtension integration (#6915)

* 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>

.github/auto-comment.yml

@@ -1,16 +1,16 @@
 pullRequestOpened: |
-  :wave: Thanks for creating a PR!   
+  :wave: Thanks for creating a PR!
 
-  Before we can merge this PR, please make sure that all the following items have been 
+  Before we can merge this PR, please make sure that all the following items have been
   checked off. If any of the checklist items are not applicable, please leave them but
-  write a little note why.   
+  write a little note why.
 
-  - [ ] Wrote tests  
-  - [ ] Updated CHANGELOG_PENDING.md   
-  - [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.  
-  - [ ] Updated relevant documentation (`docs/`) and code comments  
-  - [ ] Re-reviewed `Files changed` in the Github PR explorer  
-  - [ ] Applied Appropriate Labels  
+  - [ ] Wrote tests
+  - [ ] Updated CHANGELOG_PENDING.md
+  - [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
+  - [ ] Updated relevant documentation (`docs/`) and code comments
+  - [ ] Re-reviewed `Files changed` in the Github PR explorer
+  - [ ] Applied Appropriate Labels
 
 
-  Thank you for your contribution to Tendermint! :rocket:   
+  Thank you for your contribution to Tendermint! :rocket:

.github/linter/markdownlint.yml

@@ -1,8 +0,0 @@
-default: true,
-MD007: { "indent": 4 }
-MD013: false
-MD024: { siblings_only: true }
-MD025: false
-MD033: { no-inline-html: false }
-no-hard-tabs: false
-whitespace: false

.github/linters/markdownlint.yml

@@ -0,0 +1,8 @@
+default: true,
+MD007: {"indent": 4}
+MD013: false
+MD024: {siblings_only: true}
+MD025: false
+MD033: {no-inline-html: false}
+no-hard-tabs: false
+whitespace: false

.github/linters/yaml-lint.yml

@@ -0,0 +1,9 @@
+---
+# Default rules for YAML linting from super-linter.
+# See: See https://yamllint.readthedocs.io/en/stable/rules.html
+extends: default
+rules:
+  document-end: disable
+  document-start: disable
+  line-length: disable
+  truthy: disable

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
         with:
           go-version: "1.17"
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go
@@ -45,7 +45,7 @@ jobs:
         with:
           go-version: "1.17"
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go
@@ -67,7 +67,7 @@ jobs:
         with:
           go-version: "1.17"
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go

.github/workflows/docker.yml

@@ -1,13 +1,13 @@
 name: Docker
-#  Build & Push rebuilds the tendermint docker image on every push to master and creation of tags
+# Build & Push rebuilds the tendermint docker image on every push to master and creation of tags
 # and pushes the image to https://hub.docker.com/r/interchainio/simapp/tags
 on:
   push:
     branches:
       - master
     tags:
-      - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
-      - "v[0-9]+.[0-9]+.[0-9]+-rc*" # Push events to matching v*, i.e. v1.0-rc1, v20.15.10-rc5
+      - "v[0-9]+.[0-9]+.[0-9]+"  # Push events to matching v*, i.e. v1.0, v20.15.10
+      - "v[0-9]+.[0-9]+.[0-9]+-rc*"  # Push events to matching v*, i.e. v1.0-rc1, v20.15.10-rc5
 
 jobs:
   build:
@@ -43,13 +43,13 @@ jobs:
 
       - name: Login to DockerHub
         if: ${{ github.event_name != 'pull_request' }}
-        uses: docker/login-action@v1.10.0
+        uses: docker/login-action@v1.12.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.7.0
+        uses: docker/build-push-action@v2.8.0
         with:
           context: .
           file: ./DOCKER/Dockerfile

.github/workflows/e2e-nightly-34x.yml

@@ -6,7 +6,7 @@
 
 name: e2e-nightly-34x
 on:
-  workflow_dispatch: # allow running workflow manually, in theory
+  workflow_dispatch:  # allow running workflow manually, in theory
   schedule:
     - cron: '0 2 * * *'
 
@@ -59,7 +59,7 @@ jobs:
           SLACK_MESSAGE: Nightly E2E tests failed on v0.34.x
           SLACK_FOOTER: ''
 
-  e2e-nightly-success: # may turn this off once they seem to pass consistently
+  e2e-nightly-success:  # may turn this off once they seem to pass consistently
     needs: e2e-nightly-test
     if: ${{ success() }}
     runs-on: ubuntu-latest

.github/workflows/e2e-nightly-35x.yml

@@ -5,7 +5,7 @@
 
 name: e2e-nightly-35x
 on:
-  workflow_dispatch: # allow running workflow manually
+  workflow_dispatch:  # allow running workflow manually
   schedule:
     - cron: '0 2 * * *'
 
@@ -59,7 +59,7 @@ jobs:
           SLACK_MESSAGE: Nightly E2E tests failed on v0.35.x
           SLACK_FOOTER: ''
 
-  e2e-nightly-success: # may turn this off once they seem to pass consistently
+  e2e-nightly-success:  # may turn this off once they seem to pass consistently
     needs: e2e-nightly-test
     if: ${{ success() }}
     runs-on: ubuntu-latest

.github/workflows/e2e-nightly-master.yml

@@ -5,7 +5,7 @@
 
 name: e2e-nightly-master
 on:
-  workflow_dispatch: # allow running workflow manually
+  workflow_dispatch:  # allow running workflow manually
   schedule:
     - cron: '0 2 * * *'
 
@@ -56,7 +56,7 @@ jobs:
           SLACK_MESSAGE: Nightly E2E tests failed on master
           SLACK_FOOTER: ''
 
-  e2e-nightly-success: # may turn this off once they seem to pass consistently
+  e2e-nightly-success:  # may turn this off once they seem to pass consistently
     needs: e2e-nightly-test
     if: ${{ success() }}
     runs-on: ubuntu-latest

.github/workflows/e2e.yml

@@ -2,7 +2,7 @@ name: e2e
 # Runs the CI end-to-end test network on all pushes to master or release branches
 # and every pull request, but only if any Go files have been changed.
 on:
-  workflow_dispatch: # allow running workflow manually
+  workflow_dispatch:  # allow running workflow manually
   pull_request:
   push:
     branches:
@@ -18,7 +18,7 @@ jobs:
         with:
           go-version: '1.17'
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go
@@ -35,4 +35,3 @@ jobs:
         working-directory: test/e2e
         run: ./run-multiple.sh networks/ci.toml
         if: "env.GIT_DIFF != ''"
-

.github/workflows/fuzz-nightly.yml

@@ -1,7 +1,7 @@
 # Runs fuzzing nightly.
 name: Fuzz Tests
 on:
-  workflow_dispatch: # allow running workflow manually
+  workflow_dispatch:  # allow running workflow manually
   schedule:
     - cron: '0 3 * * *'
   pull_request:

.github/workflows/linkchecker.yml

@@ -1,5 +1,5 @@
 name: Check Markdown links
-on: 
+on:
   schedule:
     - cron: '* */24 * * *'
 jobs:

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
     timeout-minutes: 8
     steps:
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go

.github/workflows/linter.yml

@@ -21,12 +21,12 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v2.4.0
       - name: Lint Code Base
-        uses: docker://github/super-linter:v3
+        uses: docker://github/super-linter:v4
         env:
-          LINTER_RULES_PATH: .
           VALIDATE_ALL_CODEBASE: true
           DEFAULT_BRANCH: master
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           VALIDATE_MD: true
           VALIDATE_OPENAPI: true
           VALIDATE_YAML: true
+          YAML_CONFIG_FILE: yaml-lint.yml

.github/workflows/release.yml

@@ -5,7 +5,7 @@ on:
     branches:
       - "RC[0-9]/**"
     tags:
-      - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
+      - "v[0-9]+.[0-9]+.[0-9]+"  # Push events to matching v*, i.e. v1.0, v20.15.10
 
 jobs:
   goreleaser:

.github/workflows/tests.yml

@@ -14,13 +14,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        part: ["00", "01", "02", "03"]
+        part: ["00", "01", "02", "03", "04", "05"]
     steps:
       - uses: actions/setup-go@v2
         with:
           go-version: "1.17"
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go
@@ -30,7 +30,7 @@ jobs:
             Makefile
       - name: Run Go Tests
         run: |
-          make test-group-${{ matrix.part }} NUM_SPLIT=4
+          make test-group-${{ matrix.part }} NUM_SPLIT=6
         if: env.GIT_DIFF
       - uses: actions/upload-artifact@v2
         with:
@@ -42,7 +42,7 @@ jobs:
     needs: tests
     steps:
       - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: technote-space/get-diff-action@v6.0.1
         with:
           PATTERNS: |
             **/**.go

.goreleaser.yml

@@ -29,8 +29,8 @@ release:
 
 archives:
   - files:
-    - LICENSE
-    - README.md
-    - UPGRADING.md
-    - SECURITY.md
-    - CHANGELOG.md
+      - LICENSE
+      - README.md
+      - UPGRADING.md
+      - SECURITY.md
+      - CHANGELOG.md

CHANGELOG.md

@@ -2,6 +2,41 @@
 
 Friendly reminder: We have a [bug bounty program](https://hackerone.com/cosmos).
 
+## v0.35.1
+
+January 26, 2022
+
+Special thanks to external contributors on this release: @altergui, @odeke-em,
+@thanethomson
+
+### BREAKING CHANGES
+
+- CLI/RPC/Config
+
+  - [config] [\#7276](https://github.com/tendermint/tendermint/pull/7276) rpc: Add experimental config params to allow for subscription buffer size control (@thanethomson).
+
+- P2P Protocol
+
+  - [p2p] [\#7265](https://github.com/tendermint/tendermint/pull/7265) Peer manager reduces peer score for each failed dial attempts for peers that have not successfully dialed. (@tychoish)
+  - [p2p] [\#7594](https://github.com/tendermint/tendermint/pull/7594) always advertise self, to enable mutual address discovery. (@altergui)
+
+### FEATURES
+
+- [rpc] [\#7270](https://github.com/tendermint/tendermint/pull/7270) Add `header` and `header_by_hash` RPC Client queries. (@fedekunze) (@cmwaters)
+
+### IMPROVEMENTS
+
+- [internal/protoio] [\#7325](https://github.com/tendermint/tendermint/pull/7325) Optimized `MarshalDelimited` by inlining the common case and using a `sync.Pool` in the worst case. (@odeke-em)
+- [\#7338](https://github.com/tendermint/tendermint/pull/7338) pubsub: Performance improvements for the event query API (backport of #7319) (@creachadair)
+- [\#7252](https://github.com/tendermint/tendermint/pull/7252) Add basic metrics to the indexer package. (@creachadair)
+- [\#7338](https://github.com/tendermint/tendermint/pull/7338) Performance improvements for the event query API. (@creachadair)
+
+### BUG FIXES
+
+- [\#7310](https://github.com/tendermint/tendermint/issues/7310) pubsub: Report a non-nil error when shutting down (fixes #7306).
+- [\#7355](https://github.com/tendermint/tendermint/pull/7355) Fix incorrect tests using the PSQL sink. (@creachadair)
+- [\#7683](https://github.com/tendermint/tendermint/pull/7683) rpc: check error code for broadcast_tx_commit. (@tychoish)
+
 ## v0.35.0
 
 November 4, 2021
@@ -174,6 +209,21 @@ Special thanks to external contributors on this release: @JayT106,
 - [cmd/tendermint/commands] [\#6623](https://github.com/tendermint/tendermint/pull/6623) replace `$HOME/.some/test/dir` with `t.TempDir` (@tanyabouman)
 - [statesync] \6807 Implement P2P state provider as an alternative to RPC (@cmwaters)
 
+## v0.34.15
+
+Special thanks to external contributors on this release: @thanethomson
+
+### BUG FIXES
+
+- [\#7368](https://github.com/tendermint/tendermint/issues/7368) cmd: add integration test for rollback functionality (@cmwaters).
+- [\#7309](https://github.com/tendermint/tendermint/issues/7309) pubsub: Report a non-nil error when shutting down (fixes #7306).
+- [\#7057](https://github.com/tendermint/tendermint/pull/7057) Import Postgres driver support for the psql indexer (@creachadair).
+- [\#7106](https://github.com/tendermint/tendermint/pull/7106) Revert mutex change to ABCI Clients (@tychoish).
+
+### IMPROVEMENTS
+
+- [config] [\#7230](https://github.com/tendermint/tendermint/issues/7230) rpc: Add experimental config params to allow for subscription buffer size control (@thanethomson).
+
 ## v0.34.14
 
 This release backports the `rollback` feature to allow recovery in the event of an incorrect app hash.

CHANGELOG_PENDING.md

@@ -12,9 +12,11 @@ Special thanks to external contributors on this release:
 
 - CLI/RPC/Config
 
-  - [rpc] Remove the deprecated gRPC interface to the RPC service. (@creachadair)
+  - [rpc] \#7121 Remove the deprecated gRPC interface to the RPC service. (@creachadair)
   - [blocksync] \#7159 Remove support for disabling blocksync in any circumstance. (@tychoish)
   - [mempool] \#7171 Remove legacy mempool implementation. (@tychoish)
+  - [rpc] \#7575 Rework how RPC responses are written back via HTTP. (@creachadair)
+  - [rpc] \#7713 Remove unused options for websocket clients. (@creachadair)
 
 - Apps
 
@@ -24,30 +26,49 @@ Special thanks to external contributors on this release:
 
   - [p2p] \#7035 Remove legacy P2P routing implementation and associated configuration options. (@tychoish)
   - [p2p] \#7265 Peer manager reduces peer score for each failed dial attempts for peers that have not successfully dialed. (@tychoish)
+  - [p2p] [\#7594](https://github.com/tendermint/tendermint/pull/7594) always advertise self, to enable mutual address discovery. (@altergui)
 
 - Go API
 
+  - [rpc] \#7474 Remove the "URI" RPC client. (@creachadair)
+  - [libs/pubsub] \#7451 Internalize the pubsub packages. (@creachadair)
+  - [libs/sync] \#7450 Internalize and remove the library. (@creachadair)
+  - [libs/async] \#7449 Move library to internal. (@creachadair)
   - [pubsub] \#7231 Remove unbuffered subscriptions and rework the Subscription interface. (@creachadair)
   - [eventbus] \#7231 Move the EventBus type to the internal/eventbus package. (@creachadair)
   - [blocksync] \#7046 Remove v2 implementation of the blocksync service and recactor, which was disabled in the previous release. (@tychoish)
   - [p2p] \#7064 Remove WDRR queue implementation. (@tychoish)
   - [config] \#7169 `WriteConfigFile` now returns an error. (@tychoish)
   - [libs/service] \#7288 Remove SetLogger method on `service.Service` interface. (@tychoish)
-
+  - [abci/client] \#7607 Simplify client interface (removes most "async" methods). (@creachadair)
+  - [libs/json] \#7673 Remove the libs/json (tmjson) library. (@creachadair)
 
 - Blockchain Protocol
 
 ### FEATURES
 
 - [rpc] [\#7270](https://github.com/tendermint/tendermint/pull/7270) Add `header` and `header_by_hash` RPC Client queries. (@fedekunze)
+- [rpc] [\#7701] Add `ApplicationInfo` to `status` rpc call which contains the application version. (@jonasbostoen)
 - [cli] [#7033](https://github.com/tendermint/tendermint/pull/7033) Add a `rollback` command to rollback to the previous tendermint state in the event of non-determinstic app hash or reverting an upgrade.
 - [mempool, rpc] \#7041  Add removeTx operation to the RPC layer. (@tychoish)
+- [consensus] \#7354 add a new `synchrony` field to the `ConsensusParameter` struct for controlling the parameters of the proposer-based timestamp algorithm. (@williambanfield)
+- [consensus] \#7376 Update the proposal logic per the Propose-based timestamps specification so that the proposer will wait for the previous block time to occur before proposing the next block. (@williambanfield)
+- [consensus] \#7391 Use the proposed block timestamp as the proposal timestamp. Update the block validation logic to ensure that the proposed block's timestamp matches the timestamp in the proposal message. (@williambanfield)
+- [consensus] \#7415 Update proposal validation logic to Prevote nil if a proposal does not meet the conditions for Timelyness per the proposer-based timestamp specification. (@anca)
+- [consensus] \#7382 Update block validation to no longer require the block timestamp to be the median of the timestamps of the previous commit. (@anca)
+- [consensus] \#7711 Use the proposer timestamp for the first height instead of the genesis time. Chains will still start consensus at the genesis time. (@anca)
 
 ### IMPROVEMENTS
-- [internal/protoio] \#7325 Optimized `MarshalDelimited` by inlining the common case and using a `sync.Pool` in the worst case. (@odeke-em)
 
+- [internal/protoio] \#7325 Optimized `MarshalDelimited` by inlining the common case and using a `sync.Pool` in the worst case. (@odeke-em)
+- [consensus] \#6969 remove logic to 'unlock' a locked block.
 - [pubsub] \#7319 Performance improvements for the event query API (@creachadair)
+- [node] \#7521 Define concrete type for seed node implementation (@spacech1mp)
+- [rpc] \#7612 paginate mempool /unconfirmed_txs rpc endpoint (@spacech1mp)
+- [light] [\#7536](https://github.com/tendermint/tendermint/pull/7536) rpc /status call returns info about the light client (@jmalicevic)
 
 ### BUG FIXES
 
 - fix: assignment copies lock value in `BitArray.UnmarshalJSON()` (@lklimek)
+- [light] \#7640 Light Client: fix absence proof verification (@ashcherbakov)
+- [light] \#7641 Light Client: fix querying against the latest height (@ashcherbakov)

DOCKER/Dockerfile

@@ -1,5 +1,5 @@
 # stage 1 Generate Tendermint Binary
-FROM golang:1.16-alpine as builder
+FROM golang:1.17-alpine as builder
 RUN apk update && \
     apk upgrade && \
     apk --no-cache add make
@@ -8,7 +8,7 @@ WORKDIR /tendermint
 RUN make build-linux
 
 # stage 2
-FROM golang:1.15-alpine
+FROM golang:1.17-alpine
 LABEL maintainer="hello@tendermint.com"
 
 # Tendermint will be looking for the genesis file in /tendermint/config/genesis.json

Makefile

@@ -299,11 +299,13 @@ NUM_SPLIT ?= 4
 $(BUILDDIR):
 	mkdir -p $@
 
-# the format statement filters out all packages that don't have tests.
+# The format statement filters out all packages that don't have tests.
+# Note we need to check for both in-package tests (.TestGoFiles) and
+# out-of-package tests (.XTestGoFiles).
 $(BUILDDIR)/packages.txt:$(GO_TEST_FILES) $(BUILDDIR)
-	go list -f "{{ if .TestGoFiles }}{{ .ImportPath }}{{ end }}" ./... | sort > $@
+	go list -f "{{ if (or .TestGoFiles .XTestGoFiles) }}{{ .ImportPath }}{{ end }}" ./... | sort > $@
 
 split-test-packages:$(BUILDDIR)/packages.txt
 	split -d -n l/$(NUM_SPLIT) $< $<.
 test-group-%:split-test-packages
-	cat $(BUILDDIR)/packages.txt.$* | xargs go test -mod=readonly -timeout=8m -race -coverprofile=$(BUILDDIR)/$*.profile.out
+	cat $(BUILDDIR)/packages.txt.$* | xargs go test -mod=readonly -timeout=5m -race -coverprofile=$(BUILDDIR)/$*.profile.out

abci/client/client.go

@@ -33,35 +33,27 @@ type Client interface {
 
 	// Asynchronous requests
 	FlushAsync(context.Context) (*ReqRes, error)
-	EchoAsync(ctx context.Context, msg string) (*ReqRes, error)
-	InfoAsync(context.Context, types.RequestInfo) (*ReqRes, error)
 	DeliverTxAsync(context.Context, types.RequestDeliverTx) (*ReqRes, error)
 	CheckTxAsync(context.Context, types.RequestCheckTx) (*ReqRes, error)
-	QueryAsync(context.Context, types.RequestQuery) (*ReqRes, error)
-	CommitAsync(context.Context) (*ReqRes, error)
-	InitChainAsync(context.Context, types.RequestInitChain) (*ReqRes, error)
-	BeginBlockAsync(context.Context, types.RequestBeginBlock) (*ReqRes, error)
-	EndBlockAsync(context.Context, types.RequestEndBlock) (*ReqRes, error)
-	ListSnapshotsAsync(context.Context, types.RequestListSnapshots) (*ReqRes, error)
-	OfferSnapshotAsync(context.Context, types.RequestOfferSnapshot) (*ReqRes, error)
-	LoadSnapshotChunkAsync(context.Context, types.RequestLoadSnapshotChunk) (*ReqRes, error)
-	ApplySnapshotChunkAsync(context.Context, types.RequestApplySnapshotChunk) (*ReqRes, error)
 
 	// Synchronous requests
-	FlushSync(context.Context) error
-	EchoSync(ctx context.Context, msg string) (*types.ResponseEcho, error)
-	InfoSync(context.Context, types.RequestInfo) (*types.ResponseInfo, error)
-	DeliverTxSync(context.Context, types.RequestDeliverTx) (*types.ResponseDeliverTx, error)
-	CheckTxSync(context.Context, types.RequestCheckTx) (*types.ResponseCheckTx, error)
-	QuerySync(context.Context, types.RequestQuery) (*types.ResponseQuery, error)
-	CommitSync(context.Context) (*types.ResponseCommit, error)
-	InitChainSync(context.Context, types.RequestInitChain) (*types.ResponseInitChain, error)
-	BeginBlockSync(context.Context, types.RequestBeginBlock) (*types.ResponseBeginBlock, error)
-	EndBlockSync(context.Context, types.RequestEndBlock) (*types.ResponseEndBlock, error)
-	ListSnapshotsSync(context.Context, types.RequestListSnapshots) (*types.ResponseListSnapshots, error)
-	OfferSnapshotSync(context.Context, types.RequestOfferSnapshot) (*types.ResponseOfferSnapshot, error)
-	LoadSnapshotChunkSync(context.Context, types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error)
-	ApplySnapshotChunkSync(context.Context, types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error)
+	Flush(context.Context) error
+	Echo(ctx context.Context, msg string) (*types.ResponseEcho, error)
+	Info(context.Context, types.RequestInfo) (*types.ResponseInfo, error)
+	DeliverTx(context.Context, types.RequestDeliverTx) (*types.ResponseDeliverTx, error)
+	CheckTx(context.Context, types.RequestCheckTx) (*types.ResponseCheckTx, error)
+	Query(context.Context, types.RequestQuery) (*types.ResponseQuery, error)
+	Commit(context.Context) (*types.ResponseCommit, error)
+	InitChain(context.Context, types.RequestInitChain) (*types.ResponseInitChain, error)
+	PrepareProposal(context.Context, types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error)
+	ExtendVote(context.Context, types.RequestExtendVote) (*types.ResponseExtendVote, error)
+	VerifyVoteExtension(context.Context, types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error)
+	BeginBlock(context.Context, types.RequestBeginBlock) (*types.ResponseBeginBlock, error)
+	EndBlock(context.Context, types.RequestEndBlock) (*types.ResponseEndBlock, error)
+	ListSnapshots(context.Context, types.RequestListSnapshots) (*types.ResponseListSnapshots, error)
+	OfferSnapshot(context.Context, types.RequestOfferSnapshot) (*types.ResponseOfferSnapshot, error)
+	LoadSnapshotChunk(context.Context, types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error)
+	ApplySnapshotChunk(context.Context, types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error)
 }
 
 //----------------------------------------

abci/client/creators.go

@@ -16,8 +16,8 @@ type Creator func(log.Logger) (Client, error)
 func NewLocalCreator(app types.Application) Creator {
 	mtx := new(sync.Mutex)
 
-	return func(_ log.Logger) (Client, error) {
-		return NewLocalClient(mtx, app), nil
+	return func(logger log.Logger) (Client, error) {
+		return NewLocalClient(logger, mtx, app), nil
 	}
 }
 

abci/client/grpc_client.go

@@ -2,12 +2,14 @@ package abciclient
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net"
 	"sync"
 	"time"
 
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/tendermint/tendermint/abci/types"
 	"github.com/tendermint/tendermint/libs/log"
@@ -105,7 +107,10 @@ func (cli *grpcClient) OnStart(ctx context.Context) error {
 
 RETRY_LOOP:
 	for {
-		conn, err := grpc.Dial(cli.addr, grpc.WithInsecure(), grpc.WithContextDialer(dialerFunc))
+		conn, err := grpc.Dial(cli.addr,
+			grpc.WithTransportCredentials(insecure.NewCredentials()),
+			grpc.WithContextDialer(dialerFunc),
+		)
 		if err != nil {
 			if cli.mustConnect {
 				return err
@@ -121,10 +126,14 @@ RETRY_LOOP:
 
 	ENSURE_CONNECTED:
 		for {
-			_, err := client.Echo(context.Background(), &types.RequestEcho{Message: "hello"}, grpc.WaitForReady(true))
+			_, err := client.Echo(ctx, &types.RequestEcho{Message: "hello"}, grpc.WaitForReady(true))
 			if err == nil {
 				break ENSURE_CONNECTED
 			}
+			if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
+				return err
+			}
+
 			cli.logger.Error("Echo failed", "err", err)
 			time.Sleep(time.Second * echoRetryIntervalSeconds)
 		}
@@ -152,9 +161,9 @@ func (cli *grpcClient) StopForError(err error) {
 	}
 	cli.mtx.Unlock()
 
-	cli.logger.Error(fmt.Sprintf("Stopping abci.grpcClient for error: %v", err.Error()))
+	cli.logger.Error("Stopping abci.grpcClient for error", "err", err)
 	if err := cli.Stop(); err != nil {
-		cli.logger.Error("Error stopping abci.grpcClient", "err", err)
+		cli.logger.Error("error stopping abci.grpcClient", "err", err)
 	}
 }
 
@@ -174,16 +183,6 @@ func (cli *grpcClient) SetResponseCallback(resCb Callback) {
 
 //----------------------------------------
 
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) EchoAsync(ctx context.Context, msg string) (*ReqRes, error) {
-	req := types.ToRequestEcho(msg)
-	res, err := cli.client.Echo(ctx, req.GetEcho(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_Echo{Echo: res}})
-}
-
 // NOTE: call is synchronous, use ctx to break early if needed
 func (cli *grpcClient) FlushAsync(ctx context.Context) (*ReqRes, error) {
 	req := types.ToRequestFlush()
@@ -194,16 +193,6 @@ func (cli *grpcClient) FlushAsync(ctx context.Context) (*ReqRes, error) {
 	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_Flush{Flush: res}})
 }
 
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) InfoAsync(ctx context.Context, params types.RequestInfo) (*ReqRes, error) {
-	req := types.ToRequestInfo(params)
-	res, err := cli.client.Info(ctx, req.GetInfo(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_Info{Info: res}})
-}
-
 // NOTE: call is synchronous, use ctx to break early if needed
 func (cli *grpcClient) DeliverTxAsync(ctx context.Context, params types.RequestDeliverTx) (*ReqRes, error) {
 	req := types.ToRequestDeliverTx(params)
@@ -224,106 +213,6 @@ func (cli *grpcClient) CheckTxAsync(ctx context.Context, params types.RequestChe
 	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_CheckTx{CheckTx: res}})
 }
 
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) QueryAsync(ctx context.Context, params types.RequestQuery) (*ReqRes, error) {
-	req := types.ToRequestQuery(params)
-	res, err := cli.client.Query(ctx, req.GetQuery(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_Query{Query: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) CommitAsync(ctx context.Context) (*ReqRes, error) {
-	req := types.ToRequestCommit()
-	res, err := cli.client.Commit(ctx, req.GetCommit(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_Commit{Commit: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) InitChainAsync(ctx context.Context, params types.RequestInitChain) (*ReqRes, error) {
-	req := types.ToRequestInitChain(params)
-	res, err := cli.client.InitChain(ctx, req.GetInitChain(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_InitChain{InitChain: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) BeginBlockAsync(ctx context.Context, params types.RequestBeginBlock) (*ReqRes, error) {
-	req := types.ToRequestBeginBlock(params)
-	res, err := cli.client.BeginBlock(ctx, req.GetBeginBlock(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_BeginBlock{BeginBlock: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) EndBlockAsync(ctx context.Context, params types.RequestEndBlock) (*ReqRes, error) {
-	req := types.ToRequestEndBlock(params)
-	res, err := cli.client.EndBlock(ctx, req.GetEndBlock(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_EndBlock{EndBlock: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) ListSnapshotsAsync(ctx context.Context, params types.RequestListSnapshots) (*ReqRes, error) {
-	req := types.ToRequestListSnapshots(params)
-	res, err := cli.client.ListSnapshots(ctx, req.GetListSnapshots(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_ListSnapshots{ListSnapshots: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) OfferSnapshotAsync(ctx context.Context, params types.RequestOfferSnapshot) (*ReqRes, error) {
-	req := types.ToRequestOfferSnapshot(params)
-	res, err := cli.client.OfferSnapshot(ctx, req.GetOfferSnapshot(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_OfferSnapshot{OfferSnapshot: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) LoadSnapshotChunkAsync(
-	ctx context.Context,
-	params types.RequestLoadSnapshotChunk,
-) (*ReqRes, error) {
-	req := types.ToRequestLoadSnapshotChunk(params)
-	res, err := cli.client.LoadSnapshotChunk(ctx, req.GetLoadSnapshotChunk(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(ctx, req, &types.Response{Value: &types.Response_LoadSnapshotChunk{LoadSnapshotChunk: res}})
-}
-
-// NOTE: call is synchronous, use ctx to break early if needed
-func (cli *grpcClient) ApplySnapshotChunkAsync(
-	ctx context.Context,
-	params types.RequestApplySnapshotChunk,
-) (*ReqRes, error) {
-	req := types.ToRequestApplySnapshotChunk(params)
-	res, err := cli.client.ApplySnapshotChunk(ctx, req.GetApplySnapshotChunk(), grpc.WaitForReady(true))
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishAsyncCall(
-		ctx,
-		req,
-		&types.Response{Value: &types.Response_ApplySnapshotChunk{ApplySnapshotChunk: res}},
-	)
-}
-
 // finishAsyncCall creates a ReqRes for an async call, and immediately populates it
 // with the response. We don't complete it until it's been ordered via the channel.
 func (cli *grpcClient) finishAsyncCall(ctx context.Context, req *types.Request, res *types.Response) (*ReqRes, error) {
@@ -367,30 +256,22 @@ func (cli *grpcClient) finishSyncCall(reqres *ReqRes) *types.Response {
 
 //----------------------------------------
 
-func (cli *grpcClient) FlushSync(ctx context.Context) error {
-	return nil
+func (cli *grpcClient) Flush(ctx context.Context) error { return nil }
+
+func (cli *grpcClient) Echo(ctx context.Context, msg string) (*types.ResponseEcho, error) {
+	req := types.ToRequestEcho(msg)
+	return cli.client.Echo(ctx, req.GetEcho(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) EchoSync(ctx context.Context, msg string) (*types.ResponseEcho, error) {
-	reqres, err := cli.EchoAsync(ctx, msg)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetEcho(), cli.Error()
-}
-
-func (cli *grpcClient) InfoSync(
+func (cli *grpcClient) Info(
 	ctx context.Context,
-	req types.RequestInfo,
+	params types.RequestInfo,
 ) (*types.ResponseInfo, error) {
-	reqres, err := cli.InfoAsync(ctx, req)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetInfo(), cli.Error()
+	req := types.ToRequestInfo(params)
+	return cli.client.Info(ctx, req.GetInfo(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) DeliverTxSync(
+func (cli *grpcClient) DeliverTx(
 	ctx context.Context,
 	params types.RequestDeliverTx,
 ) (*types.ResponseDeliverTx, error) {
@@ -402,7 +283,7 @@ func (cli *grpcClient) DeliverTxSync(
 	return cli.finishSyncCall(reqres).GetDeliverTx(), cli.Error()
 }
 
-func (cli *grpcClient) CheckTxSync(
+func (cli *grpcClient) CheckTx(
 	ctx context.Context,
 	params types.RequestCheckTx,
 ) (*types.ResponseCheckTx, error) {
@@ -414,103 +295,100 @@ func (cli *grpcClient) CheckTxSync(
 	return cli.finishSyncCall(reqres).GetCheckTx(), cli.Error()
 }
 
-func (cli *grpcClient) QuerySync(
+func (cli *grpcClient) Query(
 	ctx context.Context,
-	req types.RequestQuery,
+	params types.RequestQuery,
 ) (*types.ResponseQuery, error) {
-	reqres, err := cli.QueryAsync(ctx, req)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetQuery(), cli.Error()
+	req := types.ToRequestQuery(params)
+	return cli.client.Query(ctx, req.GetQuery(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) CommitSync(ctx context.Context) (*types.ResponseCommit, error) {
-	reqres, err := cli.CommitAsync(ctx)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetCommit(), cli.Error()
+func (cli *grpcClient) Commit(ctx context.Context) (*types.ResponseCommit, error) {
+	req := types.ToRequestCommit()
+	return cli.client.Commit(ctx, req.GetCommit(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) InitChainSync(
+func (cli *grpcClient) InitChain(
 	ctx context.Context,
 	params types.RequestInitChain,
 ) (*types.ResponseInitChain, error) {
 
-	reqres, err := cli.InitChainAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetInitChain(), cli.Error()
+	req := types.ToRequestInitChain(params)
+	return cli.client.InitChain(ctx, req.GetInitChain(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) BeginBlockSync(
+func (cli *grpcClient) BeginBlock(
 	ctx context.Context,
 	params types.RequestBeginBlock,
 ) (*types.ResponseBeginBlock, error) {
 
-	reqres, err := cli.BeginBlockAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetBeginBlock(), cli.Error()
+	req := types.ToRequestBeginBlock(params)
+	return cli.client.BeginBlock(ctx, req.GetBeginBlock(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) EndBlockSync(
+func (cli *grpcClient) EndBlock(
 	ctx context.Context,
 	params types.RequestEndBlock,
 ) (*types.ResponseEndBlock, error) {
 
-	reqres, err := cli.EndBlockAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetEndBlock(), cli.Error()
+	req := types.ToRequestEndBlock(params)
+	return cli.client.EndBlock(ctx, req.GetEndBlock(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) ListSnapshotsSync(
+func (cli *grpcClient) ListSnapshots(
 	ctx context.Context,
 	params types.RequestListSnapshots,
 ) (*types.ResponseListSnapshots, error) {
 
-	reqres, err := cli.ListSnapshotsAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetListSnapshots(), cli.Error()
+	req := types.ToRequestListSnapshots(params)
+	return cli.client.ListSnapshots(ctx, req.GetListSnapshots(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) OfferSnapshotSync(
+func (cli *grpcClient) OfferSnapshot(
 	ctx context.Context,
 	params types.RequestOfferSnapshot,
 ) (*types.ResponseOfferSnapshot, error) {
 
-	reqres, err := cli.OfferSnapshotAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetOfferSnapshot(), cli.Error()
+	req := types.ToRequestOfferSnapshot(params)
+	return cli.client.OfferSnapshot(ctx, req.GetOfferSnapshot(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) LoadSnapshotChunkSync(
+func (cli *grpcClient) LoadSnapshotChunk(
 	ctx context.Context,
 	params types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
 
-	reqres, err := cli.LoadSnapshotChunkAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetLoadSnapshotChunk(), cli.Error()
+	req := types.ToRequestLoadSnapshotChunk(params)
+	return cli.client.LoadSnapshotChunk(ctx, req.GetLoadSnapshotChunk(), grpc.WaitForReady(true))
 }
 
-func (cli *grpcClient) ApplySnapshotChunkSync(
+func (cli *grpcClient) ApplySnapshotChunk(
 	ctx context.Context,
 	params types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
 
-	reqres, err := cli.ApplySnapshotChunkAsync(ctx, params)
-	if err != nil {
-		return nil, err
-	}
-	return cli.finishSyncCall(reqres).GetApplySnapshotChunk(), cli.Error()
+	req := types.ToRequestApplySnapshotChunk(params)
+	return cli.client.ApplySnapshotChunk(ctx, req.GetApplySnapshotChunk(), grpc.WaitForReady(true))
+}
+
+func (cli *grpcClient) PrepareProposal(
+	ctx context.Context,
+	params types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error) {
+
+	req := types.ToRequestPrepareProposal(params)
+	return cli.client.PrepareProposal(ctx, req.GetPrepareProposal(), grpc.WaitForReady(true))
+}
+
+func (cli *grpcClient) ExtendVote(
+	ctx context.Context,
+	params types.RequestExtendVote) (*types.ResponseExtendVote, error) {
+
+	req := types.ToRequestExtendVote(params)
+	return cli.client.ExtendVote(ctx, req.GetExtendVote(), grpc.WaitForReady(true))
+}
+
+func (cli *grpcClient) VerifyVoteExtension(
+	ctx context.Context,
+	params types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error) {
+
+	req := types.ToRequestVerifyVoteExtension(params)
+	return cli.client.VerifyVoteExtension(ctx, req.GetVerifyVoteExtension(), grpc.WaitForReady(true))
 }

abci/client/local_client.go

@@ -5,6 +5,7 @@ import (
 	"sync"
 
 	types "github.com/tendermint/tendermint/abci/types"
+	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/libs/service"
 )
 
@@ -26,7 +27,7 @@ var _ Client = (*localClient)(nil)
 // methods of the given app.
 //
 // Both Async and Sync methods ignore the given context.Context parameter.
-func NewLocalClient(mtx *sync.Mutex, app types.Application) Client {
+func NewLocalClient(logger log.Logger, mtx *sync.Mutex, app types.Application) Client {
 	if mtx == nil {
 		mtx = new(sync.Mutex)
 	}
@@ -34,7 +35,7 @@ func NewLocalClient(mtx *sync.Mutex, app types.Application) Client {
 		mtx:         mtx,
 		Application: app,
 	}
-	cli.BaseService = *service.NewBaseService(nil, "localClient", cli)
+	cli.BaseService = *service.NewBaseService(logger, "localClient", cli)
 	return cli
 }
 
@@ -57,27 +58,6 @@ func (app *localClient) FlushAsync(ctx context.Context) (*ReqRes, error) {
 	return newLocalReqRes(types.ToRequestFlush(), nil), nil
 }
 
-func (app *localClient) EchoAsync(ctx context.Context, msg string) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	return app.callback(
-		types.ToRequestEcho(msg),
-		types.ToResponseEcho(msg),
-	), nil
-}
-
-func (app *localClient) InfoAsync(ctx context.Context, req types.RequestInfo) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.Info(req)
-	return app.callback(
-		types.ToRequestInfo(req),
-		types.ToResponseInfo(res),
-	), nil
-}
-
 func (app *localClient) DeliverTxAsync(ctx context.Context, params types.RequestDeliverTx) (*ReqRes, error) {
 	app.mtx.Lock()
 	defer app.mtx.Unlock()
@@ -100,122 +80,17 @@ func (app *localClient) CheckTxAsync(ctx context.Context, req types.RequestCheck
 	), nil
 }
 
-func (app *localClient) QueryAsync(ctx context.Context, req types.RequestQuery) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.Query(req)
-	return app.callback(
-		types.ToRequestQuery(req),
-		types.ToResponseQuery(res),
-	), nil
-}
-
-func (app *localClient) CommitAsync(ctx context.Context) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.Commit()
-	return app.callback(
-		types.ToRequestCommit(),
-		types.ToResponseCommit(res),
-	), nil
-}
-
-func (app *localClient) InitChainAsync(ctx context.Context, req types.RequestInitChain) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.InitChain(req)
-	return app.callback(
-		types.ToRequestInitChain(req),
-		types.ToResponseInitChain(res),
-	), nil
-}
-
-func (app *localClient) BeginBlockAsync(ctx context.Context, req types.RequestBeginBlock) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.BeginBlock(req)
-	return app.callback(
-		types.ToRequestBeginBlock(req),
-		types.ToResponseBeginBlock(res),
-	), nil
-}
-
-func (app *localClient) EndBlockAsync(ctx context.Context, req types.RequestEndBlock) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.EndBlock(req)
-	return app.callback(
-		types.ToRequestEndBlock(req),
-		types.ToResponseEndBlock(res),
-	), nil
-}
-
-func (app *localClient) ListSnapshotsAsync(ctx context.Context, req types.RequestListSnapshots) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.ListSnapshots(req)
-	return app.callback(
-		types.ToRequestListSnapshots(req),
-		types.ToResponseListSnapshots(res),
-	), nil
-}
-
-func (app *localClient) OfferSnapshotAsync(ctx context.Context, req types.RequestOfferSnapshot) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.OfferSnapshot(req)
-	return app.callback(
-		types.ToRequestOfferSnapshot(req),
-		types.ToResponseOfferSnapshot(res),
-	), nil
-}
-
-func (app *localClient) LoadSnapshotChunkAsync(
-	ctx context.Context,
-	req types.RequestLoadSnapshotChunk,
-) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.LoadSnapshotChunk(req)
-	return app.callback(
-		types.ToRequestLoadSnapshotChunk(req),
-		types.ToResponseLoadSnapshotChunk(res),
-	), nil
-}
-
-func (app *localClient) ApplySnapshotChunkAsync(
-	ctx context.Context,
-	req types.RequestApplySnapshotChunk,
-) (*ReqRes, error) {
-	app.mtx.Lock()
-	defer app.mtx.Unlock()
-
-	res := app.Application.ApplySnapshotChunk(req)
-	return app.callback(
-		types.ToRequestApplySnapshotChunk(req),
-		types.ToResponseApplySnapshotChunk(res),
-	), nil
-}
-
 //-------------------------------------------------------
 
-func (app *localClient) FlushSync(ctx context.Context) error {
+func (app *localClient) Flush(ctx context.Context) error {
 	return nil
 }
 
-func (app *localClient) EchoSync(ctx context.Context, msg string) (*types.ResponseEcho, error) {
+func (app *localClient) Echo(ctx context.Context, msg string) (*types.ResponseEcho, error) {
 	return &types.ResponseEcho{Message: msg}, nil
 }
 
-func (app *localClient) InfoSync(ctx context.Context, req types.RequestInfo) (*types.ResponseInfo, error) {
+func (app *localClient) Info(ctx context.Context, req types.RequestInfo) (*types.ResponseInfo, error) {
 	app.mtx.Lock()
 	defer app.mtx.Unlock()
 
@@ -223,7 +98,7 @@ func (app *localClient) InfoSync(ctx context.Context, req types.RequestInfo) (*t
 	return &res, nil
 }
 
-func (app *localClient) DeliverTxSync(
+func (app *localClient) DeliverTx(
 	ctx context.Context,
 	req types.RequestDeliverTx,
 ) (*types.ResponseDeliverTx, error) {
@@ -235,7 +110,7 @@ func (app *localClient) DeliverTxSync(
 	return &res, nil
 }
 
-func (app *localClient) CheckTxSync(
+func (app *localClient) CheckTx(
 	ctx context.Context,
 	req types.RequestCheckTx,
 ) (*types.ResponseCheckTx, error) {
@@ -246,7 +121,7 @@ func (app *localClient) CheckTxSync(
 	return &res, nil
 }
 
-func (app *localClient) QuerySync(
+func (app *localClient) Query(
 	ctx context.Context,
 	req types.RequestQuery,
 ) (*types.ResponseQuery, error) {
@@ -257,7 +132,7 @@ func (app *localClient) QuerySync(
 	return &res, nil
 }
 
-func (app *localClient) CommitSync(ctx context.Context) (*types.ResponseCommit, error) {
+func (app *localClient) Commit(ctx context.Context) (*types.ResponseCommit, error) {
 	app.mtx.Lock()
 	defer app.mtx.Unlock()
 
@@ -265,7 +140,7 @@ func (app *localClient) CommitSync(ctx context.Context) (*types.ResponseCommit,
 	return &res, nil
 }
 
-func (app *localClient) InitChainSync(
+func (app *localClient) InitChain(
 	ctx context.Context,
 	req types.RequestInitChain,
 ) (*types.ResponseInitChain, error) {
@@ -277,7 +152,7 @@ func (app *localClient) InitChainSync(
 	return &res, nil
 }
 
-func (app *localClient) BeginBlockSync(
+func (app *localClient) BeginBlock(
 	ctx context.Context,
 	req types.RequestBeginBlock,
 ) (*types.ResponseBeginBlock, error) {
@@ -289,7 +164,7 @@ func (app *localClient) BeginBlockSync(
 	return &res, nil
 }
 
-func (app *localClient) EndBlockSync(
+func (app *localClient) EndBlock(
 	ctx context.Context,
 	req types.RequestEndBlock,
 ) (*types.ResponseEndBlock, error) {
@@ -301,7 +176,7 @@ func (app *localClient) EndBlockSync(
 	return &res, nil
 }
 
-func (app *localClient) ListSnapshotsSync(
+func (app *localClient) ListSnapshots(
 	ctx context.Context,
 	req types.RequestListSnapshots,
 ) (*types.ResponseListSnapshots, error) {
@@ -313,7 +188,7 @@ func (app *localClient) ListSnapshotsSync(
 	return &res, nil
 }
 
-func (app *localClient) OfferSnapshotSync(
+func (app *localClient) OfferSnapshot(
 	ctx context.Context,
 	req types.RequestOfferSnapshot,
 ) (*types.ResponseOfferSnapshot, error) {
@@ -325,7 +200,7 @@ func (app *localClient) OfferSnapshotSync(
 	return &res, nil
 }
 
-func (app *localClient) LoadSnapshotChunkSync(
+func (app *localClient) LoadSnapshotChunk(
 	ctx context.Context,
 	req types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
 
@@ -336,7 +211,7 @@ func (app *localClient) LoadSnapshotChunkSync(
 	return &res, nil
 }
 
-func (app *localClient) ApplySnapshotChunkSync(
+func (app *localClient) ApplySnapshotChunk(
 	ctx context.Context,
 	req types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
 
@@ -347,6 +222,39 @@ func (app *localClient) ApplySnapshotChunkSync(
 	return &res, nil
 }
 
+func (app *localClient) PrepareProposal(
+	ctx context.Context,
+	req types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error) {
+
+	app.mtx.Lock()
+	defer app.mtx.Unlock()
+
+	res := app.Application.PrepareProposal(req)
+	return &res, nil
+}
+
+func (app *localClient) ExtendVote(
+	ctx context.Context,
+	req types.RequestExtendVote) (*types.ResponseExtendVote, error) {
+
+	app.mtx.Lock()
+	defer app.mtx.Unlock()
+
+	res := app.Application.ExtendVote(req)
+	return &res, nil
+}
+
+func (app *localClient) VerifyVoteExtension(
+	ctx context.Context,
+	req types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error) {
+
+	app.mtx.Lock()
+	defer app.mtx.Unlock()
+
+	res := app.Application.VerifyVoteExtension(req)
+	return &res, nil
+}
+
 //-------------------------------------------------------
 
 func (app *localClient) callback(req *types.Request, res *types.Response) *ReqRes {

abci/client/mocks/client.go

@@ -17,31 +17,8 @@ type Client struct {
 	mock.Mock
 }
 
-// ApplySnapshotChunkAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) ApplySnapshotChunkAsync(_a0 context.Context, _a1 types.RequestApplySnapshotChunk) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestApplySnapshotChunk) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestApplySnapshotChunk) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// ApplySnapshotChunkSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) ApplySnapshotChunkSync(_a0 context.Context, _a1 types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
+// ApplySnapshotChunk provides a mock function with given fields: _a0, _a1
+func (_m *Client) ApplySnapshotChunk(_a0 context.Context, _a1 types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseApplySnapshotChunk
@@ -63,31 +40,8 @@ func (_m *Client) ApplySnapshotChunkSync(_a0 context.Context, _a1 types.RequestA
 	return r0, r1
 }
 
-// BeginBlockAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) BeginBlockAsync(_a0 context.Context, _a1 types.RequestBeginBlock) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestBeginBlock) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestBeginBlock) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// BeginBlockSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) BeginBlockSync(_a0 context.Context, _a1 types.RequestBeginBlock) (*types.ResponseBeginBlock, error) {
+// BeginBlock provides a mock function with given fields: _a0, _a1
+func (_m *Client) BeginBlock(_a0 context.Context, _a1 types.RequestBeginBlock) (*types.ResponseBeginBlock, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseBeginBlock
@@ -109,6 +63,29 @@ func (_m *Client) BeginBlockSync(_a0 context.Context, _a1 types.RequestBeginBloc
 	return r0, r1
 }
 
+// CheckTx provides a mock function with given fields: _a0, _a1
+func (_m *Client) CheckTx(_a0 context.Context, _a1 types.RequestCheckTx) (*types.ResponseCheckTx, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 *types.ResponseCheckTx
+	if rf, ok := ret.Get(0).(func(context.Context, types.RequestCheckTx) *types.ResponseCheckTx); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*types.ResponseCheckTx)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, types.RequestCheckTx) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
 // CheckTxAsync provides a mock function with given fields: _a0, _a1
 func (_m *Client) CheckTxAsync(_a0 context.Context, _a1 types.RequestCheckTx) (*abciclient.ReqRes, error) {
 	ret := _m.Called(_a0, _a1)
@@ -132,54 +109,8 @@ func (_m *Client) CheckTxAsync(_a0 context.Context, _a1 types.RequestCheckTx) (*
 	return r0, r1
 }
 
-// CheckTxSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) CheckTxSync(_a0 context.Context, _a1 types.RequestCheckTx) (*types.ResponseCheckTx, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *types.ResponseCheckTx
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestCheckTx) *types.ResponseCheckTx); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*types.ResponseCheckTx)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestCheckTx) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// CommitAsync provides a mock function with given fields: _a0
-func (_m *Client) CommitAsync(_a0 context.Context) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context) *abciclient.ReqRes); ok {
-		r0 = rf(_a0)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context) error); ok {
-		r1 = rf(_a0)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// CommitSync provides a mock function with given fields: _a0
-func (_m *Client) CommitSync(_a0 context.Context) (*types.ResponseCommit, error) {
+// Commit provides a mock function with given fields: _a0
+func (_m *Client) Commit(_a0 context.Context) (*types.ResponseCommit, error) {
 	ret := _m.Called(_a0)
 
 	var r0 *types.ResponseCommit
@@ -201,6 +132,29 @@ func (_m *Client) CommitSync(_a0 context.Context) (*types.ResponseCommit, error)
 	return r0, r1
 }
 
+// DeliverTx provides a mock function with given fields: _a0, _a1
+func (_m *Client) DeliverTx(_a0 context.Context, _a1 types.RequestDeliverTx) (*types.ResponseDeliverTx, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 *types.ResponseDeliverTx
+	if rf, ok := ret.Get(0).(func(context.Context, types.RequestDeliverTx) *types.ResponseDeliverTx); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*types.ResponseDeliverTx)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, types.RequestDeliverTx) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
 // DeliverTxAsync provides a mock function with given fields: _a0, _a1
 func (_m *Client) DeliverTxAsync(_a0 context.Context, _a1 types.RequestDeliverTx) (*abciclient.ReqRes, error) {
 	ret := _m.Called(_a0, _a1)
@@ -224,54 +178,8 @@ func (_m *Client) DeliverTxAsync(_a0 context.Context, _a1 types.RequestDeliverTx
 	return r0, r1
 }
 
-// DeliverTxSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) DeliverTxSync(_a0 context.Context, _a1 types.RequestDeliverTx) (*types.ResponseDeliverTx, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *types.ResponseDeliverTx
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestDeliverTx) *types.ResponseDeliverTx); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*types.ResponseDeliverTx)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestDeliverTx) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// EchoAsync provides a mock function with given fields: ctx, msg
-func (_m *Client) EchoAsync(ctx context.Context, msg string) (*abciclient.ReqRes, error) {
-	ret := _m.Called(ctx, msg)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, string) *abciclient.ReqRes); ok {
-		r0 = rf(ctx, msg)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, string) error); ok {
-		r1 = rf(ctx, msg)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// EchoSync provides a mock function with given fields: ctx, msg
-func (_m *Client) EchoSync(ctx context.Context, msg string) (*types.ResponseEcho, error) {
+// Echo provides a mock function with given fields: ctx, msg
+func (_m *Client) Echo(ctx context.Context, msg string) (*types.ResponseEcho, error) {
 	ret := _m.Called(ctx, msg)
 
 	var r0 *types.ResponseEcho
@@ -293,31 +201,8 @@ func (_m *Client) EchoSync(ctx context.Context, msg string) (*types.ResponseEcho
 	return r0, r1
 }
 
-// EndBlockAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) EndBlockAsync(_a0 context.Context, _a1 types.RequestEndBlock) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestEndBlock) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestEndBlock) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// EndBlockSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) EndBlockSync(_a0 context.Context, _a1 types.RequestEndBlock) (*types.ResponseEndBlock, error) {
+// EndBlock provides a mock function with given fields: _a0, _a1
+func (_m *Client) EndBlock(_a0 context.Context, _a1 types.RequestEndBlock) (*types.ResponseEndBlock, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseEndBlock
@@ -353,6 +238,43 @@ func (_m *Client) Error() error {
 	return r0
 }
 
+// ExtendVote provides a mock function with given fields: _a0, _a1
+func (_m *Client) ExtendVote(_a0 context.Context, _a1 types.RequestExtendVote) (*types.ResponseExtendVote, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 *types.ResponseExtendVote
+	if rf, ok := ret.Get(0).(func(context.Context, types.RequestExtendVote) *types.ResponseExtendVote); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*types.ResponseExtendVote)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, types.RequestExtendVote) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Flush provides a mock function with given fields: _a0
+func (_m *Client) Flush(_a0 context.Context) error {
+	ret := _m.Called(_a0)
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context) error); ok {
+		r0 = rf(_a0)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
 // FlushAsync provides a mock function with given fields: _a0
 func (_m *Client) FlushAsync(_a0 context.Context) (*abciclient.ReqRes, error) {
 	ret := _m.Called(_a0)
@@ -376,45 +298,8 @@ func (_m *Client) FlushAsync(_a0 context.Context) (*abciclient.ReqRes, error) {
 	return r0, r1
 }
 
-// FlushSync provides a mock function with given fields: _a0
-func (_m *Client) FlushSync(_a0 context.Context) error {
-	ret := _m.Called(_a0)
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(context.Context) error); ok {
-		r0 = rf(_a0)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// InfoAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) InfoAsync(_a0 context.Context, _a1 types.RequestInfo) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestInfo) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestInfo) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// InfoSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) InfoSync(_a0 context.Context, _a1 types.RequestInfo) (*types.ResponseInfo, error) {
+// Info provides a mock function with given fields: _a0, _a1
+func (_m *Client) Info(_a0 context.Context, _a1 types.RequestInfo) (*types.ResponseInfo, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseInfo
@@ -436,31 +321,8 @@ func (_m *Client) InfoSync(_a0 context.Context, _a1 types.RequestInfo) (*types.R
 	return r0, r1
 }
 
-// InitChainAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) InitChainAsync(_a0 context.Context, _a1 types.RequestInitChain) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestInitChain) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestInitChain) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// InitChainSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) InitChainSync(_a0 context.Context, _a1 types.RequestInitChain) (*types.ResponseInitChain, error) {
+// InitChain provides a mock function with given fields: _a0, _a1
+func (_m *Client) InitChain(_a0 context.Context, _a1 types.RequestInitChain) (*types.ResponseInitChain, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseInitChain
@@ -496,31 +358,8 @@ func (_m *Client) IsRunning() bool {
 	return r0
 }
 
-// ListSnapshotsAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) ListSnapshotsAsync(_a0 context.Context, _a1 types.RequestListSnapshots) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestListSnapshots) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestListSnapshots) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// ListSnapshotsSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) ListSnapshotsSync(_a0 context.Context, _a1 types.RequestListSnapshots) (*types.ResponseListSnapshots, error) {
+// ListSnapshots provides a mock function with given fields: _a0, _a1
+func (_m *Client) ListSnapshots(_a0 context.Context, _a1 types.RequestListSnapshots) (*types.ResponseListSnapshots, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseListSnapshots
@@ -542,31 +381,8 @@ func (_m *Client) ListSnapshotsSync(_a0 context.Context, _a1 types.RequestListSn
 	return r0, r1
 }
 
-// LoadSnapshotChunkAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) LoadSnapshotChunkAsync(_a0 context.Context, _a1 types.RequestLoadSnapshotChunk) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestLoadSnapshotChunk) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestLoadSnapshotChunk) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// LoadSnapshotChunkSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) LoadSnapshotChunkSync(_a0 context.Context, _a1 types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
+// LoadSnapshotChunk provides a mock function with given fields: _a0, _a1
+func (_m *Client) LoadSnapshotChunk(_a0 context.Context, _a1 types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseLoadSnapshotChunk
@@ -588,31 +404,8 @@ func (_m *Client) LoadSnapshotChunkSync(_a0 context.Context, _a1 types.RequestLo
 	return r0, r1
 }
 
-// OfferSnapshotAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) OfferSnapshotAsync(_a0 context.Context, _a1 types.RequestOfferSnapshot) (*abciclient.ReqRes, error) {
-	ret := _m.Called(_a0, _a1)
-
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestOfferSnapshot) *abciclient.ReqRes); ok {
-		r0 = rf(_a0, _a1)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
-		}
-	}
-
-	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestOfferSnapshot) error); ok {
-		r1 = rf(_a0, _a1)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// OfferSnapshotSync provides a mock function with given fields: _a0, _a1
-func (_m *Client) OfferSnapshotSync(_a0 context.Context, _a1 types.RequestOfferSnapshot) (*types.ResponseOfferSnapshot, error) {
+// OfferSnapshot provides a mock function with given fields: _a0, _a1
+func (_m *Client) OfferSnapshot(_a0 context.Context, _a1 types.RequestOfferSnapshot) (*types.ResponseOfferSnapshot, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseOfferSnapshot
@@ -634,21 +427,21 @@ func (_m *Client) OfferSnapshotSync(_a0 context.Context, _a1 types.RequestOfferS
 	return r0, r1
 }
 
-// QueryAsync provides a mock function with given fields: _a0, _a1
-func (_m *Client) QueryAsync(_a0 context.Context, _a1 types.RequestQuery) (*abciclient.ReqRes, error) {
+// PrepareProposal provides a mock function with given fields: _a0, _a1
+func (_m *Client) PrepareProposal(_a0 context.Context, _a1 types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error) {
 	ret := _m.Called(_a0, _a1)
 
-	var r0 *abciclient.ReqRes
-	if rf, ok := ret.Get(0).(func(context.Context, types.RequestQuery) *abciclient.ReqRes); ok {
+	var r0 *types.ResponsePrepareProposal
+	if rf, ok := ret.Get(0).(func(context.Context, types.RequestPrepareProposal) *types.ResponsePrepareProposal); ok {
 		r0 = rf(_a0, _a1)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*abciclient.ReqRes)
+			r0 = ret.Get(0).(*types.ResponsePrepareProposal)
 		}
 	}
 
 	var r1 error
-	if rf, ok := ret.Get(1).(func(context.Context, types.RequestQuery) error); ok {
+	if rf, ok := ret.Get(1).(func(context.Context, types.RequestPrepareProposal) error); ok {
 		r1 = rf(_a0, _a1)
 	} else {
 		r1 = ret.Error(1)
@@ -657,8 +450,8 @@ func (_m *Client) QueryAsync(_a0 context.Context, _a1 types.RequestQuery) (*abci
 	return r0, r1
 }
 
-// QuerySync provides a mock function with given fields: _a0, _a1
-func (_m *Client) QuerySync(_a0 context.Context, _a1 types.RequestQuery) (*types.ResponseQuery, error) {
+// Query provides a mock function with given fields: _a0, _a1
+func (_m *Client) Query(_a0 context.Context, _a1 types.RequestQuery) (*types.ResponseQuery, error) {
 	ret := _m.Called(_a0, _a1)
 
 	var r0 *types.ResponseQuery
@@ -713,6 +506,29 @@ func (_m *Client) String() string {
 	return r0
 }
 
+// VerifyVoteExtension provides a mock function with given fields: _a0, _a1
+func (_m *Client) VerifyVoteExtension(_a0 context.Context, _a1 types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error) {
+	ret := _m.Called(_a0, _a1)
+
+	var r0 *types.ResponseVerifyVoteExtension
+	if rf, ok := ret.Get(0).(func(context.Context, types.RequestVerifyVoteExtension) *types.ResponseVerifyVoteExtension); ok {
+		r0 = rf(_a0, _a1)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*types.ResponseVerifyVoteExtension)
+		}
+	}
+
+	var r1 error
+	if rf, ok := ret.Get(1).(func(context.Context, types.RequestVerifyVoteExtension) error); ok {
+		r1 = rf(_a0, _a1)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
 // Wait provides a mock function with given fields:
 func (_m *Client) Wait() {
 	_m.Called()

abci/client/socket_client.go

@@ -222,18 +222,10 @@ func (cli *socketClient) didRecvResponse(res *types.Response) error {
 
 //----------------------------------------
 
-func (cli *socketClient) EchoAsync(ctx context.Context, msg string) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestEcho(msg))
-}
-
 func (cli *socketClient) FlushAsync(ctx context.Context) (*ReqRes, error) {
 	return cli.queueRequestAsync(ctx, types.ToRequestFlush())
 }
 
-func (cli *socketClient) InfoAsync(ctx context.Context, req types.RequestInfo) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestInfo(req))
-}
-
 func (cli *socketClient) DeliverTxAsync(ctx context.Context, req types.RequestDeliverTx) (*ReqRes, error) {
 	return cli.queueRequestAsync(ctx, types.ToRequestDeliverTx(req))
 }
@@ -242,51 +234,9 @@ func (cli *socketClient) CheckTxAsync(ctx context.Context, req types.RequestChec
 	return cli.queueRequestAsync(ctx, types.ToRequestCheckTx(req))
 }
 
-func (cli *socketClient) QueryAsync(ctx context.Context, req types.RequestQuery) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestQuery(req))
-}
-
-func (cli *socketClient) CommitAsync(ctx context.Context) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestCommit())
-}
-
-func (cli *socketClient) InitChainAsync(ctx context.Context, req types.RequestInitChain) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestInitChain(req))
-}
-
-func (cli *socketClient) BeginBlockAsync(ctx context.Context, req types.RequestBeginBlock) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestBeginBlock(req))
-}
-
-func (cli *socketClient) EndBlockAsync(ctx context.Context, req types.RequestEndBlock) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestEndBlock(req))
-}
-
-func (cli *socketClient) ListSnapshotsAsync(ctx context.Context, req types.RequestListSnapshots) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestListSnapshots(req))
-}
-
-func (cli *socketClient) OfferSnapshotAsync(ctx context.Context, req types.RequestOfferSnapshot) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestOfferSnapshot(req))
-}
-
-func (cli *socketClient) LoadSnapshotChunkAsync(
-	ctx context.Context,
-	req types.RequestLoadSnapshotChunk,
-) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestLoadSnapshotChunk(req))
-}
-
-func (cli *socketClient) ApplySnapshotChunkAsync(
-	ctx context.Context,
-	req types.RequestApplySnapshotChunk,
-) (*ReqRes, error) {
-	return cli.queueRequestAsync(ctx, types.ToRequestApplySnapshotChunk(req))
-}
-
 //----------------------------------------
 
-func (cli *socketClient) FlushSync(ctx context.Context) error {
+func (cli *socketClient) Flush(ctx context.Context) error {
 	reqRes, err := cli.queueRequest(ctx, types.ToRequestFlush(), true)
 	if err != nil {
 		return queueErr(err)
@@ -311,149 +261,182 @@ func (cli *socketClient) FlushSync(ctx context.Context) error {
 	}
 }
 
-func (cli *socketClient) EchoSync(ctx context.Context, msg string) (*types.ResponseEcho, error) {
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestEcho(msg))
+func (cli *socketClient) Echo(ctx context.Context, msg string) (*types.ResponseEcho, error) {
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestEcho(msg))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetEcho(), nil
 }
 
-func (cli *socketClient) InfoSync(
+func (cli *socketClient) Info(
 	ctx context.Context,
 	req types.RequestInfo,
 ) (*types.ResponseInfo, error) {
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestInfo(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestInfo(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetInfo(), nil
 }
 
-func (cli *socketClient) DeliverTxSync(
+func (cli *socketClient) DeliverTx(
 	ctx context.Context,
 	req types.RequestDeliverTx,
 ) (*types.ResponseDeliverTx, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestDeliverTx(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestDeliverTx(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetDeliverTx(), nil
 }
 
-func (cli *socketClient) CheckTxSync(
+func (cli *socketClient) CheckTx(
 	ctx context.Context,
 	req types.RequestCheckTx,
 ) (*types.ResponseCheckTx, error) {
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestCheckTx(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestCheckTx(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetCheckTx(), nil
 }
 
-func (cli *socketClient) QuerySync(
+func (cli *socketClient) Query(
 	ctx context.Context,
 	req types.RequestQuery,
 ) (*types.ResponseQuery, error) {
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestQuery(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestQuery(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetQuery(), nil
 }
 
-func (cli *socketClient) CommitSync(ctx context.Context) (*types.ResponseCommit, error) {
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestCommit())
+func (cli *socketClient) Commit(ctx context.Context) (*types.ResponseCommit, error) {
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestCommit())
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetCommit(), nil
 }
 
-func (cli *socketClient) InitChainSync(
+func (cli *socketClient) InitChain(
 	ctx context.Context,
 	req types.RequestInitChain,
 ) (*types.ResponseInitChain, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestInitChain(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestInitChain(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetInitChain(), nil
 }
 
-func (cli *socketClient) BeginBlockSync(
+func (cli *socketClient) BeginBlock(
 	ctx context.Context,
 	req types.RequestBeginBlock,
 ) (*types.ResponseBeginBlock, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestBeginBlock(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestBeginBlock(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetBeginBlock(), nil
 }
 
-func (cli *socketClient) EndBlockSync(
+func (cli *socketClient) EndBlock(
 	ctx context.Context,
 	req types.RequestEndBlock,
 ) (*types.ResponseEndBlock, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestEndBlock(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestEndBlock(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetEndBlock(), nil
 }
 
-func (cli *socketClient) ListSnapshotsSync(
+func (cli *socketClient) ListSnapshots(
 	ctx context.Context,
 	req types.RequestListSnapshots,
 ) (*types.ResponseListSnapshots, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestListSnapshots(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestListSnapshots(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetListSnapshots(), nil
 }
 
-func (cli *socketClient) OfferSnapshotSync(
+func (cli *socketClient) OfferSnapshot(
 	ctx context.Context,
 	req types.RequestOfferSnapshot,
 ) (*types.ResponseOfferSnapshot, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestOfferSnapshot(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestOfferSnapshot(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetOfferSnapshot(), nil
 }
 
-func (cli *socketClient) LoadSnapshotChunkSync(
+func (cli *socketClient) LoadSnapshotChunk(
 	ctx context.Context,
 	req types.RequestLoadSnapshotChunk) (*types.ResponseLoadSnapshotChunk, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestLoadSnapshotChunk(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestLoadSnapshotChunk(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetLoadSnapshotChunk(), nil
 }
 
-func (cli *socketClient) ApplySnapshotChunkSync(
+func (cli *socketClient) ApplySnapshotChunk(
 	ctx context.Context,
 	req types.RequestApplySnapshotChunk) (*types.ResponseApplySnapshotChunk, error) {
 
-	reqres, err := cli.queueRequestAndFlushSync(ctx, types.ToRequestApplySnapshotChunk(req))
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestApplySnapshotChunk(req))
 	if err != nil {
 		return nil, err
 	}
 	return reqres.Response.GetApplySnapshotChunk(), nil
 }
 
+func (cli *socketClient) PrepareProposal(
+	ctx context.Context,
+	req types.RequestPrepareProposal) (*types.ResponsePrepareProposal, error) {
+
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestPrepareProposal(req))
+	if err != nil {
+		return nil, err
+	}
+	return reqres.Response.GetPrepareProposal(), nil
+}
+
+func (cli *socketClient) ExtendVote(
+	ctx context.Context,
+	req types.RequestExtendVote) (*types.ResponseExtendVote, error) {
+
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestExtendVote(req))
+	if err != nil {
+		return nil, err
+	}
+	return reqres.Response.GetExtendVote(), nil
+}
+
+func (cli *socketClient) VerifyVoteExtension(
+	ctx context.Context,
+	req types.RequestVerifyVoteExtension) (*types.ResponseVerifyVoteExtension, error) {
+
+	reqres, err := cli.queueRequestAndFlush(ctx, types.ToRequestVerifyVoteExtension(req))
+	if err != nil {
+		return nil, err
+	}
+	return reqres.Response.GetVerifyVoteExtension(), nil
+}
+
 //----------------------------------------
 
 // queueRequest enqueues req onto the queue. If the queue is full, it ether
@@ -497,7 +480,7 @@ func (cli *socketClient) queueRequestAsync(
 	return reqres, cli.Error()
 }
 
-func (cli *socketClient) queueRequestAndFlushSync(
+func (cli *socketClient) queueRequestAndFlush(
 	ctx context.Context,
 	req *types.Request,
 ) (*ReqRes, error) {
@@ -507,7 +490,7 @@ func (cli *socketClient) queueRequestAndFlushSync(
 		return nil, queueErr(err)
 	}
 
-	if err := cli.FlushSync(ctx); err != nil {
+	if err := cli.Flush(ctx); err != nil {
 		return nil, err
 	}
 
@@ -565,6 +548,12 @@ func resMatchesReq(req *types.Request, res *types.Response) (ok bool) {
 		_, ok = res.Value.(*types.Response_Query)
 	case *types.Request_InitChain:
 		_, ok = res.Value.(*types.Response_InitChain)
+	case *types.Request_PrepareProposal:
+		_, ok = res.Value.(*types.Response_PrepareProposal)
+	case *types.Request_ExtendVote:
+		_, ok = res.Value.(*types.Response_ExtendVote)
+	case *types.Request_VerifyVoteExtension:
+		_, ok = res.Value.(*types.Response_VerifyVoteExtension)
 	case *types.Request_BeginBlock:
 		_, ok = res.Value.(*types.Response_BeginBlock)
 	case *types.Request_EndBlock:
@@ -592,6 +581,6 @@ func (cli *socketClient) stopForError(err error) {
 
 	cli.logger.Info("Stopping abci.socketClient", "reason", err)
 	if err := cli.Stop(); err != nil {
-		cli.logger.Error("Error stopping abci.socketClient", "err", err)
+		cli.logger.Error("error stopping abci.socketClient", "err", err)
 	}
 }

abci/client/socket_client_test.go

@@ -23,20 +23,20 @@ func TestProperSyncCalls(t *testing.T) {
 	defer cancel()
 
 	app := slowApp{}
-	logger := log.TestingLogger()
+	logger := log.NewNopLogger()
 
 	_, c := setupClientServer(ctx, t, logger, app)
 
 	resp := make(chan error, 1)
 	go func() {
-		// This is BeginBlockSync unrolled....
-		reqres, err := c.BeginBlockAsync(ctx, types.RequestBeginBlock{})
+		rsp, err := c.BeginBlock(ctx, types.RequestBeginBlock{})
 		assert.NoError(t, err)
-		err = c.FlushSync(ctx)
-		assert.NoError(t, err)
-		res := reqres.Response.GetBeginBlock()
-		assert.NotNil(t, res)
-		resp <- c.Error()
+		assert.NoError(t, c.Flush(ctx))
+		assert.NotNil(t, rsp)
+		select {
+		case <-ctx.Done():
+		case resp <- c.Error():
+		}
 	}()
 
 	select {

abci/cmd/abci-cli/abci-cli.go

@@ -14,6 +14,7 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/tendermint/tendermint/libs/log"
+	"github.com/tendermint/tendermint/version"
 
 	abciclient "github.com/tendermint/tendermint/abci/client"
 	"github.com/tendermint/tendermint/abci/example/code"
@@ -21,7 +22,6 @@ import (
 	"github.com/tendermint/tendermint/abci/server"
 	servertest "github.com/tendermint/tendermint/abci/tests/server"
 	"github.com/tendermint/tendermint/abci/types"
-	"github.com/tendermint/tendermint/abci/version"
 	"github.com/tendermint/tendermint/proto/tendermint/crypto"
 )
 
@@ -60,7 +60,7 @@ var RootCmd = &cobra.Command{
 		}
 
 		if logger == nil {
-			logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
+			logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo)
 		}
 
 		if client == nil {
@@ -231,7 +231,7 @@ var versionCmd = &cobra.Command{
 	Long:  "print ABCI console version",
 	Args:  cobra.ExactArgs(0),
 	RunE: func(cmd *cobra.Command, args []string) error {
-		fmt.Println(version.Version)
+		fmt.Println(version.ABCIVersion)
 		return nil
 	},
 }
@@ -442,7 +442,7 @@ func cmdEcho(cmd *cobra.Command, args []string) error {
 	if len(args) > 0 {
 		msg = args[0]
 	}
-	res, err := client.EchoSync(cmd.Context(), msg)
+	res, err := client.Echo(cmd.Context(), msg)
 	if err != nil {
 		return err
 	}
@@ -460,7 +460,7 @@ func cmdInfo(cmd *cobra.Command, args []string) error {
 	if len(args) == 1 {
 		version = args[0]
 	}
-	res, err := client.InfoSync(cmd.Context(), types.RequestInfo{Version: version})
+	res, err := client.Info(cmd.Context(), types.RequestInfo{Version: version})
 	if err != nil {
 		return err
 	}
@@ -485,7 +485,7 @@ func cmdDeliverTx(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	res, err := client.DeliverTxSync(cmd.Context(), types.RequestDeliverTx{Tx: txBytes})
+	res, err := client.DeliverTx(cmd.Context(), types.RequestDeliverTx{Tx: txBytes})
 	if err != nil {
 		return err
 	}
@@ -511,7 +511,7 @@ func cmdCheckTx(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	res, err := client.CheckTxSync(cmd.Context(), types.RequestCheckTx{Tx: txBytes})
+	res, err := client.CheckTx(cmd.Context(), types.RequestCheckTx{Tx: txBytes})
 	if err != nil {
 		return err
 	}
@@ -526,7 +526,7 @@ func cmdCheckTx(cmd *cobra.Command, args []string) error {
 
 // Get application Merkle root hash
 func cmdCommit(cmd *cobra.Command, args []string) error {
-	res, err := client.CommitSync(cmd.Context())
+	res, err := client.Commit(cmd.Context())
 	if err != nil {
 		return err
 	}
@@ -551,7 +551,7 @@ func cmdQuery(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	resQuery, err := client.QuerySync(cmd.Context(), types.RequestQuery{
+	resQuery, err := client.Query(cmd.Context(), types.RequestQuery{
 		Data:   queryBytes,
 		Path:   flagPath,
 		Height: int64(flagHeight),
@@ -575,15 +575,14 @@ func cmdQuery(cmd *cobra.Command, args []string) error {
 }
 
 func cmdKVStore(cmd *cobra.Command, args []string) error {
-	logger := log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
+	logger := log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo)
 
 	// Create the application - in memory or persisted to disk
 	var app types.Application
 	if flagPersist == "" {
 		app = kvstore.NewApplication()
 	} else {
-		app = kvstore.NewPersistentKVStoreApplication(flagPersist)
-		app.(*kvstore.PersistentKVStoreApplication).SetLogger(logger.With("module", "kvstore"))
+		app = kvstore.NewPersistentKVStoreApplication(logger, flagPersist)
 	}
 
 	// Start the listener

abci/example/example_test.go

@@ -13,6 +13,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/tendermint/tendermint/libs/log"
 	tmnet "github.com/tendermint/tendermint/libs/net"
@@ -31,34 +32,38 @@ func init() {
 func TestKVStore(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
+	logger := log.NewTestingLogger(t)
 
-	fmt.Println("### Testing KVStore")
-	testStream(ctx, t, kvstore.NewApplication())
+	logger.Info("### Testing KVStore")
+	testStream(ctx, t, logger, kvstore.NewApplication())
 }
 
 func TestBaseApp(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	fmt.Println("### Testing BaseApp")
-	testStream(ctx, t, types.NewBaseApplication())
+	logger := log.NewTestingLogger(t)
+
+	logger.Info("### Testing BaseApp")
+	testStream(ctx, t, logger, types.NewBaseApplication())
 }
 
 func TestGRPC(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	fmt.Println("### Testing GRPC")
-	testGRPCSync(ctx, t, types.NewGRPCApplication(types.NewBaseApplication()))
+	logger := log.NewTestingLogger(t)
+
+	logger.Info("### Testing GRPC")
+	testGRPCSync(ctx, t, logger, types.NewGRPCApplication(types.NewBaseApplication()))
 }
 
-func testStream(ctx context.Context, t *testing.T, app types.Application) {
+func testStream(ctx context.Context, t *testing.T, logger log.Logger, app types.Application) {
 	t.Helper()
 
 	const numDeliverTxs = 20000
 	socketFile := fmt.Sprintf("test-%08x.sock", rand.Int31n(1<<30))
 	defer os.Remove(socketFile)
 	socket := fmt.Sprintf("unix://%v", socketFile)
-	logger := log.TestingLogger()
 	// Start the listener
 	server := abciserver.NewSocketServer(logger.With("module", "abci-server"), socket, app)
 	t.Cleanup(server.Wait)
@@ -66,7 +71,7 @@ func testStream(ctx context.Context, t *testing.T, app types.Application) {
 	require.NoError(t, err)
 
 	// Connect to the socket
-	client := abciclient.NewSocketClient(log.TestingLogger().With("module", "abci-client"), socket, false)
+	client := abciclient.NewSocketClient(logger.With("module", "abci-client"), socket, false)
 	t.Cleanup(client.Wait)
 
 	err = client.Start(ctx)
@@ -107,7 +112,7 @@ func testStream(ctx context.Context, t *testing.T, app types.Application) {
 
 		// Sometimes send flush messages
 		if counter%128 == 0 {
-			err = client.FlushSync(context.Background())
+			err = client.Flush(ctx)
 			require.NoError(t, err)
 		}
 	}
@@ -126,26 +131,25 @@ func dialerFunc(ctx context.Context, addr string) (net.Conn, error) {
 	return tmnet.Connect(addr)
 }
 
-func testGRPCSync(ctx context.Context, t *testing.T, app types.ABCIApplicationServer) {
+func testGRPCSync(ctx context.Context, t *testing.T, logger log.Logger, app types.ABCIApplicationServer) {
+	t.Helper()
 	numDeliverTxs := 2000
 	socketFile := fmt.Sprintf("/tmp/test-%08x.sock", rand.Int31n(1<<30))
 	defer os.Remove(socketFile)
 	socket := fmt.Sprintf("unix://%v", socketFile)
-	logger := log.TestingLogger()
+
 	// Start the listener
 	server := abciserver.NewGRPCServer(logger.With("module", "abci-server"), socket, app)
 
-	if err := server.Start(ctx); err != nil {
-		t.Fatalf("Error starting GRPC server: %v", err.Error())
-	}
-
+	require.NoError(t, server.Start(ctx))
 	t.Cleanup(func() { server.Wait() })
 
 	// Connect to the socket
-	conn, err := grpc.Dial(socket, grpc.WithInsecure(), grpc.WithContextDialer(dialerFunc))
-	if err != nil {
-		t.Fatalf("Error dialing GRPC server: %v", err.Error())
-	}
+	conn, err := grpc.Dial(socket,
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithContextDialer(dialerFunc),
+	)
+	require.NoError(t, err, "Error dialing GRPC server")
 
 	t.Cleanup(func() {
 		if err := conn.Close(); err != nil {
@@ -158,10 +162,9 @@ func testGRPCSync(ctx context.Context, t *testing.T, app types.ABCIApplicationSe
 	// Write requests
 	for counter := 0; counter < numDeliverTxs; counter++ {
 		// Send request
-		response, err := client.DeliverTx(context.Background(), &types.RequestDeliverTx{Tx: []byte("test")})
-		if err != nil {
-			t.Fatalf("Error in GRPC DeliverTx: %v", err.Error())
-		}
+		response, err := client.DeliverTx(ctx, &types.RequestDeliverTx{Tx: []byte("test")})
+		require.NoError(t, err, "Error in GRPC DeliverTx")
+
 		counter++
 		if response.Code != code.CodeTypeOK {
 			t.Error("DeliverTx failed with ret_code", response.Code)

abci/example/kvstore/README.md

@@ -4,7 +4,7 @@ There are two app's here: the KVStoreApplication and the PersistentKVStoreApplic
 
 ## KVStoreApplication
 
-The KVStoreApplication is a simple merkle key-value store. 
+The KVStoreApplication is a simple merkle key-value store.
 Transactions of the form `key=value` are stored as key-value pairs in the tree.
 Transactions without an `=` sign set the value to the key.
 The app has no replay protection (other than what the mempool provides).
@@ -12,7 +12,7 @@ The app has no replay protection (other than what the mempool provides).
 ## PersistentKVStoreApplication
 
 The PersistentKVStoreApplication wraps the KVStoreApplication
-and provides two additional features:
+and provides three additional features:
 
 1) persistence of state across app restarts (using Tendermint's ABCI-Handshake mechanism)
 2) validator set changes
@@ -27,4 +27,4 @@ Validator set changes are effected using the following transaction format:
 
 where `pubkeyN` is a base64-encoded 32-byte ed25519 key and `powerN` is a new voting power for the validator with `pubkeyN` (possibly a new one).
 To remove a validator from the validator set, set power to `0`.
-There is no sybil protection against new validators joining. 
+There is no sybil protection against new validators joining.

abci/example/kvstore/kvstore.go

@@ -171,3 +171,9 @@ func (app *Application) Query(reqQuery types.RequestQuery) (resQuery types.Respo
 
 	return resQuery
 }
+
+func (app *Application) PrepareProposal(
+	req types.RequestPrepareProposal) types.ResponsePrepareProposal {
+	return types.ResponsePrepareProposal{
+		BlockData: req.BlockData}
+}

abci/example/kvstore/kvstore_test.go

@@ -76,7 +76,9 @@ func TestPersistentKVStoreKV(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	kvstore := NewPersistentKVStoreApplication(dir)
+	logger := log.NewTestingLogger(t)
+
+	kvstore := NewPersistentKVStoreApplication(logger, dir)
 	key := testKey
 	value := key
 	tx := []byte(key)
@@ -92,7 +94,9 @@ func TestPersistentKVStoreInfo(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	kvstore := NewPersistentKVStoreApplication(dir)
+	logger := log.NewTestingLogger(t)
+
+	kvstore := NewPersistentKVStoreApplication(logger, dir)
 	InitKVStore(kvstore)
 	height := int64(0)
 
@@ -124,7 +128,9 @@ func TestValUpdates(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	kvstore := NewPersistentKVStoreApplication(dir)
+	logger := log.NewTestingLogger(t)
+
+	kvstore := NewPersistentKVStoreApplication(logger, dir)
 
 	// init with some validators
 	total := 10
@@ -289,7 +295,7 @@ func makeGRPCClientServer(
 func TestClientServer(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	logger := log.TestingLogger()
+	logger := log.NewTestingLogger(t)
 
 	// set up socket app
 	kvstore := NewApplication()
@@ -324,39 +330,39 @@ func runClientTests(ctx context.Context, t *testing.T, client abciclient.Client)
 }
 
 func testClient(ctx context.Context, t *testing.T, app abciclient.Client, tx []byte, key, value string) {
-	ar, err := app.DeliverTxSync(ctx, types.RequestDeliverTx{Tx: tx})
+	ar, err := app.DeliverTx(ctx, types.RequestDeliverTx{Tx: tx})
 	require.NoError(t, err)
 	require.False(t, ar.IsErr(), ar)
 	// repeating tx doesn't raise error
-	ar, err = app.DeliverTxSync(ctx, types.RequestDeliverTx{Tx: tx})
+	ar, err = app.DeliverTx(ctx, types.RequestDeliverTx{Tx: tx})
 	require.NoError(t, err)
 	require.False(t, ar.IsErr(), ar)
 	// commit
-	_, err = app.CommitSync(ctx)
+	_, err = app.Commit(ctx)
 	require.NoError(t, err)
 
-	info, err := app.InfoSync(ctx, types.RequestInfo{})
+	info, err := app.Info(ctx, types.RequestInfo{})
 	require.NoError(t, err)
 	require.NotZero(t, info.LastBlockHeight)
 
 	// make sure query is fine
-	resQuery, err := app.QuerySync(ctx, types.RequestQuery{
+	resQuery, err := app.Query(ctx, types.RequestQuery{
 		Path: "/store",
 		Data: []byte(key),
 	})
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.Equal(t, code.CodeTypeOK, resQuery.Code)
 	require.Equal(t, key, string(resQuery.Key))
 	require.Equal(t, value, string(resQuery.Value))
 	require.EqualValues(t, info.LastBlockHeight, resQuery.Height)
 
 	// make sure proof is fine
-	resQuery, err = app.QuerySync(ctx, types.RequestQuery{
+	resQuery, err = app.Query(ctx, types.RequestQuery{
 		Path:  "/store",
 		Data:  []byte(key),
 		Prove: true,
 	})
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.Equal(t, code.CodeTypeOK, resQuery.Code)
 	require.Equal(t, key, string(resQuery.Key))
 	require.Equal(t, value, string(resQuery.Value))

abci/example/kvstore/persistent_kvstore.go

@@ -14,6 +14,7 @@ import (
 	"github.com/tendermint/tendermint/crypto/encoding"
 	"github.com/tendermint/tendermint/libs/log"
 	cryptoproto "github.com/tendermint/tendermint/proto/tendermint/crypto"
+	ptypes "github.com/tendermint/tendermint/proto/tendermint/types"
 )
 
 const (
@@ -35,7 +36,7 @@ type PersistentKVStoreApplication struct {
 	logger log.Logger
 }
 
-func NewPersistentKVStoreApplication(dbDir string) *PersistentKVStoreApplication {
+func NewPersistentKVStoreApplication(logger log.Logger, dbDir string) *PersistentKVStoreApplication {
 	name := "kvstore"
 	db, err := dbm.NewGoLevelDB(name, dbDir)
 	if err != nil {
@@ -47,7 +48,7 @@ func NewPersistentKVStoreApplication(dbDir string) *PersistentKVStoreApplication
 	return &PersistentKVStoreApplication{
 		app:                &Application{state: state},
 		valAddrToPubKeyMap: make(map[string]cryptoproto.PublicKey),
-		logger:             log.NewNopLogger(),
+		logger:             logger,
 	}
 }
 
@@ -55,10 +56,6 @@ func (app *PersistentKVStoreApplication) Close() error {
 	return app.app.state.db.Close()
 }
 
-func (app *PersistentKVStoreApplication) SetLogger(l log.Logger) {
-	app.logger = l
-}
-
 func (app *PersistentKVStoreApplication) Info(req types.RequestInfo) types.ResponseInfo {
 	res := app.app.Info(req)
 	res.LastBlockHeight = app.app.state.Height
@@ -76,6 +73,10 @@ func (app *PersistentKVStoreApplication) DeliverTx(req types.RequestDeliverTx) t
 		return app.execValidatorTx(req.Tx)
 	}
 
+	if isPrepareTx(req.Tx) {
+		return app.execPrepareTx(req.Tx)
+	}
+
 	// otherwise, update the key-value store
 	return app.app.DeliverTx(req)
 }
@@ -113,7 +114,7 @@ func (app *PersistentKVStoreApplication) InitChain(req types.RequestInitChain) t
 	for _, v := range req.Validators {
 		r := app.updateValidator(v)
 		if r.IsErr() {
-			app.logger.Error("Error updating validators", "r", r)
+			app.logger.Error("error updating validators", "r", r)
 		}
 	}
 	return types.ResponseInitChain{}
@@ -170,6 +171,24 @@ func (app *PersistentKVStoreApplication) ApplySnapshotChunk(
 	return types.ResponseApplySnapshotChunk{Result: types.ResponseApplySnapshotChunk_ABORT}
 }
 
+func (app *PersistentKVStoreApplication) ExtendVote(
+	req types.RequestExtendVote) types.ResponseExtendVote {
+	return types.ResponseExtendVote{
+		VoteExtension: ConstructVoteExtension(req.Vote.ValidatorAddress),
+	}
+}
+
+func (app *PersistentKVStoreApplication) VerifyVoteExtension(
+	req types.RequestVerifyVoteExtension) types.ResponseVerifyVoteExtension {
+	return types.RespondVerifyVoteExtension(
+		app.verifyExtension(req.Vote.ValidatorAddress, req.Vote.VoteExtension))
+}
+
+func (app *PersistentKVStoreApplication) PrepareProposal(
+	req types.RequestPrepareProposal) types.ResponsePrepareProposal {
+	return types.ResponsePrepareProposal{BlockData: app.substPrepareTx(req.BlockData)}
+}
+
 //---------------------------------------------
 // update validators
 
@@ -271,7 +290,7 @@ func (app *PersistentKVStoreApplication) updateValidator(v types.ValidatorUpdate
 		if err := types.WriteMessage(&v, value); err != nil {
 			return types.ResponseDeliverTx{
 				Code: code.CodeTypeEncodingError,
-				Log:  fmt.Sprintf("Error encoding validator: %v", err)}
+				Log:  fmt.Sprintf("error encoding validator: %v", err)}
 		}
 		if err = app.app.state.db.Set(key, value.Bytes()); err != nil {
 			panic(err)
@@ -284,3 +303,51 @@ func (app *PersistentKVStoreApplication) updateValidator(v types.ValidatorUpdate
 
 	return types.ResponseDeliverTx{Code: code.CodeTypeOK}
 }
+
+// -----------------------------
+
+const PreparePrefix = "prepare"
+
+func isPrepareTx(tx []byte) bool {
+	return strings.HasPrefix(string(tx), PreparePrefix)
+}
+
+// execPrepareTx is noop. tx data is considered as placeholder
+// and is substitute at the PrepareProposal.
+func (app *PersistentKVStoreApplication) execPrepareTx(tx []byte) types.ResponseDeliverTx {
+	// noop
+	return types.ResponseDeliverTx{}
+}
+
+// substPrepareTx subst all the preparetx in the blockdata
+// to null string(could be any arbitrary string).
+func (app *PersistentKVStoreApplication) substPrepareTx(blockData [][]byte) [][]byte {
+	for i, tx := range blockData {
+		if isPrepareTx(tx) {
+			blockData[i] = make([]byte, len(tx))
+		}
+	}
+
+	return blockData
+}
+
+func ConstructVoteExtension(valAddr []byte) *ptypes.VoteExtension {
+	return &ptypes.VoteExtension{
+		AppDataToSign:             valAddr,
+		AppDataSelfAuthenticating: valAddr,
+	}
+}
+
+func (app *PersistentKVStoreApplication) verifyExtension(valAddr []byte, ext *ptypes.VoteExtension) bool {
+	if ext == nil {
+		return false
+	}
+	canonical := ConstructVoteExtension(valAddr)
+	if !bytes.Equal(canonical.AppDataToSign, ext.AppDataToSign) {
+		return false
+	}
+	if !bytes.Equal(canonical.AppDataSelfAuthenticating, ext.AppDataSelfAuthenticating) {
+		return false
+	}
+	return true
+}

abci/server/grpc_server.go

@@ -58,7 +58,7 @@ func (s *GRPCServer) OnStart(ctx context.Context) error {
 		}()
 
 		if err := s.server.Serve(s.listener); err != nil {
-			s.logger.Error("Error serving gRPC server", "err", err)
+			s.logger.Error("error serving gRPC server", "err", err)
 		}
 	}()
 	return nil

abci/server/socket_server.go

@@ -61,7 +61,7 @@ func (s *SocketServer) OnStart(ctx context.Context) error {
 
 func (s *SocketServer) OnStop() {
 	if err := s.listener.Close(); err != nil {
-		s.logger.Error("Error closing listener", "err", err)
+		s.logger.Error("error closing listener", "err", err)
 	}
 
 	s.connsMtx.Lock()
@@ -70,7 +70,7 @@ func (s *SocketServer) OnStop() {
 	for id, conn := range s.conns {
 		delete(s.conns, id)
 		if err := conn.Close(); err != nil {
-			s.logger.Error("Error closing connection", "id", id, "conn", conn, "err", err)
+			s.logger.Error("error closing connection", "id", id, "conn", conn, "err", err)
 		}
 	}
 }
@@ -139,7 +139,7 @@ func (s *SocketServer) waitForClose(ctx context.Context, closeConn chan error, c
 	defer func() {
 		// Close the connection
 		if err := s.rmConn(connID); err != nil {
-			s.logger.Error("Error closing connection", "err", err)
+			s.logger.Error("error closing connection", "err", err)
 		}
 	}()
 
@@ -240,12 +240,21 @@ func (s *SocketServer) handleRequest(req *types.Request, responses chan<- *types
 	case *types.Request_OfferSnapshot:
 		res := s.app.OfferSnapshot(*r.OfferSnapshot)
 		responses <- types.ToResponseOfferSnapshot(res)
+	case *types.Request_PrepareProposal:
+		res := s.app.PrepareProposal(*r.PrepareProposal)
+		responses <- types.ToResponsePrepareProposal(res)
 	case *types.Request_LoadSnapshotChunk:
 		res := s.app.LoadSnapshotChunk(*r.LoadSnapshotChunk)
 		responses <- types.ToResponseLoadSnapshotChunk(res)
 	case *types.Request_ApplySnapshotChunk:
 		res := s.app.ApplySnapshotChunk(*r.ApplySnapshotChunk)
 		responses <- types.ToResponseApplySnapshotChunk(res)
+	case *types.Request_ExtendVote:
+		res := s.app.ExtendVote(*r.ExtendVote)
+		responses <- types.ToResponseExtendVote(res)
+	case *types.Request_VerifyVoteExtension:
+		res := s.app.VerifyVoteExtension(*r.VerifyVoteExtension)
+		responses <- types.ToResponseVerifyVoteExtension(res)
 	default:
 		responses <- types.ToResponseException("Unknown request")
 	}
@@ -259,14 +268,26 @@ func (s *SocketServer) handleResponses(
 	responses <-chan *types.Response,
 ) {
 	bw := bufio.NewWriter(conn)
-	for res := range responses {
-		if err := types.WriteMessage(res, bw); err != nil {
-			closeConn <- fmt.Errorf("error writing message: %w", err)
-			return
-		}
-		if err := bw.Flush(); err != nil {
-			closeConn <- fmt.Errorf("error flushing write buffer: %w", err)
+	for {
+		select {
+		case <-ctx.Done():
 			return
+		case res := <-responses:
+			if err := types.WriteMessage(res, bw); err != nil {
+				select {
+				case <-ctx.Done():
+				case closeConn <- fmt.Errorf("error writing message: %w", err):
+				}
+				return
+			}
+			if err := bw.Flush(); err != nil {
+				select {
+				case <-ctx.Done():
+				case closeConn <- fmt.Errorf("error flushing write buffer: %w", err):
+				}
+
+				return
+			}
 		}
 	}
 }

abci/tests/client_server_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"testing"
 
+	"github.com/fortytw2/leaktest"
 	"github.com/stretchr/testify/assert"
 
 	abciclientent "github.com/tendermint/tendermint/abci/client"
@@ -13,6 +14,8 @@ import (
 )
 
 func TestClientServerNoAddrPrefix(t *testing.T) {
+	t.Cleanup(leaktest.Check(t))
+
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
@@ -21,15 +24,17 @@ func TestClientServerNoAddrPrefix(t *testing.T) {
 		transport = "socket"
 	)
 	app := kvstore.NewApplication()
-	logger := log.TestingLogger()
+	logger := log.NewTestingLogger(t)
 
 	server, err := abciserver.NewServer(logger, addr, transport, app)
 	assert.NoError(t, err, "expected no error on NewServer")
 	err = server.Start(ctx)
 	assert.NoError(t, err, "expected no error on server.Start")
+	t.Cleanup(server.Wait)
 
 	client, err := abciclientent.NewClient(logger, addr, transport, true)
 	assert.NoError(t, err, "expected no error on NewClient")
 	err = client.Start(ctx)
 	assert.NoError(t, err, "expected no error on client.Start")
+	t.Cleanup(client.Wait)
 }

abci/tests/server/client.go

@@ -21,7 +21,7 @@ func InitChain(ctx context.Context, client abciclient.Client) error {
 		power := mrand.Int()
 		vals[i] = types.UpdateValidator(pubkey, int64(power), "")
 	}
-	_, err := client.InitChainSync(ctx, types.RequestInitChain{
+	_, err := client.InitChain(ctx, types.RequestInitChain{
 		Validators: vals,
 	})
 	if err != nil {
@@ -33,7 +33,7 @@ func InitChain(ctx context.Context, client abciclient.Client) error {
 }
 
 func Commit(ctx context.Context, client abciclient.Client, hashExp []byte) error {
-	res, err := client.CommitSync(ctx)
+	res, err := client.Commit(ctx)
 	data := res.Data
 	if err != nil {
 		fmt.Println("Failed test: Commit")
@@ -50,7 +50,7 @@ func Commit(ctx context.Context, client abciclient.Client, hashExp []byte) error
 }
 
 func DeliverTx(ctx context.Context, client abciclient.Client, txBytes []byte, codeExp uint32, dataExp []byte) error {
-	res, _ := client.DeliverTxSync(ctx, types.RequestDeliverTx{Tx: txBytes})
+	res, _ := client.DeliverTx(ctx, types.RequestDeliverTx{Tx: txBytes})
 	code, data, log := res.Code, res.Data, res.Log
 	if code != codeExp {
 		fmt.Println("Failed test: DeliverTx")
@@ -69,7 +69,7 @@ func DeliverTx(ctx context.Context, client abciclient.Client, txBytes []byte, co
 }
 
 func CheckTx(ctx context.Context, client abciclient.Client, txBytes []byte, codeExp uint32, dataExp []byte) error {
-	res, _ := client.CheckTxSync(ctx, types.RequestCheckTx{Tx: txBytes})
+	res, _ := client.CheckTx(ctx, types.RequestCheckTx{Tx: txBytes})
 	code, data, log := res.Code, res.Data, res.Log
 	if code != codeExp {
 		fmt.Println("Failed test: CheckTx")

abci/types/application.go

@@ -17,11 +17,20 @@ type Application interface {
 	CheckTx(RequestCheckTx) ResponseCheckTx // Validate a tx for the mempool
 
 	// Consensus Connection
-	InitChain(RequestInitChain) ResponseInitChain    // Initialize blockchain w validators/other info from TendermintCore
-	BeginBlock(RequestBeginBlock) ResponseBeginBlock // Signals the beginning of a block
-	DeliverTx(RequestDeliverTx) ResponseDeliverTx    // Deliver a tx for full processing
-	EndBlock(RequestEndBlock) ResponseEndBlock       // Signals the end of a block, returns changes to the validator set
-	Commit() ResponseCommit                          // Commit the state and return the application Merkle root hash
+	InitChain(RequestInitChain) ResponseInitChain // Initialize blockchain w validators/other info from TendermintCore
+	PrepareProposal(RequestPrepareProposal) ResponsePrepareProposal
+	// Signals the beginning of a block
+	BeginBlock(RequestBeginBlock) ResponseBeginBlock
+	// Deliver a tx for full processing
+	DeliverTx(RequestDeliverTx) ResponseDeliverTx
+	// Signals the end of a block, returns changes to the validator set
+	EndBlock(RequestEndBlock) ResponseEndBlock
+	// Commit the state and return the application Merkle root hash
+	Commit() ResponseCommit
+	// Create application specific vote extension
+	ExtendVote(RequestExtendVote) ResponseExtendVote
+	// Verify application's vote extension data
+	VerifyVoteExtension(RequestVerifyVoteExtension) ResponseVerifyVoteExtension
 
 	// State Sync Connection
 	ListSnapshots(RequestListSnapshots) ResponseListSnapshots                // List available snapshots
@@ -58,6 +67,14 @@ func (BaseApplication) Commit() ResponseCommit {
 	return ResponseCommit{}
 }
 
+func (BaseApplication) ExtendVote(req RequestExtendVote) ResponseExtendVote {
+	return ResponseExtendVote{}
+}
+
+func (BaseApplication) VerifyVoteExtension(req RequestVerifyVoteExtension) ResponseVerifyVoteExtension {
+	return ResponseVerifyVoteExtension{}
+}
+
 func (BaseApplication) Query(req RequestQuery) ResponseQuery {
 	return ResponseQuery{Code: CodeTypeOK}
 }
@@ -90,6 +107,10 @@ func (BaseApplication) ApplySnapshotChunk(req RequestApplySnapshotChunk) Respons
 	return ResponseApplySnapshotChunk{}
 }
 
+func (BaseApplication) PrepareProposal(req RequestPrepareProposal) ResponsePrepareProposal {
+	return ResponsePrepareProposal{}
+}
+
 //-------------------------------------------------------
 
 // GRPCApplication is a GRPC wrapper for Application
@@ -172,3 +193,21 @@ func (app *GRPCApplication) ApplySnapshotChunk(
 	res := app.app.ApplySnapshotChunk(*req)
 	return &res, nil
 }
+
+func (app *GRPCApplication) ExtendVote(
+	ctx context.Context, req *RequestExtendVote) (*ResponseExtendVote, error) {
+	res := app.app.ExtendVote(*req)
+	return &res, nil
+}
+
+func (app *GRPCApplication) VerifyVoteExtension(
+	ctx context.Context, req *RequestVerifyVoteExtension) (*ResponseVerifyVoteExtension, error) {
+	res := app.app.VerifyVoteExtension(*req)
+	return &res, nil
+}
+
+func (app *GRPCApplication) PrepareProposal(
+	ctx context.Context, req *RequestPrepareProposal) (*ResponsePrepareProposal, error) {
+	res := app.app.PrepareProposal(*req)
+	return &res, nil
+}

abci/types/messages.go

@@ -110,6 +110,24 @@ func ToRequestApplySnapshotChunk(req RequestApplySnapshotChunk) *Request {
 	}
 }
 
+func ToRequestExtendVote(req RequestExtendVote) *Request {
+	return &Request{
+		Value: &Request_ExtendVote{&req},
+	}
+}
+
+func ToRequestVerifyVoteExtension(req RequestVerifyVoteExtension) *Request {
+	return &Request{
+		Value: &Request_VerifyVoteExtension{&req},
+	}
+}
+
+func ToRequestPrepareProposal(req RequestPrepareProposal) *Request {
+	return &Request{
+		Value: &Request_PrepareProposal{&req},
+	}
+}
+
 //----------------------------------------
 
 func ToResponseException(errStr string) *Response {
@@ -200,3 +218,21 @@ func ToResponseApplySnapshotChunk(res ResponseApplySnapshotChunk) *Response {
 		Value: &Response_ApplySnapshotChunk{&res},
 	}
 }
+
+func ToResponseExtendVote(res ResponseExtendVote) *Response {
+	return &Response{
+		Value: &Response_ExtendVote{&res},
+	}
+}
+
+func ToResponseVerifyVoteExtension(res ResponseVerifyVoteExtension) *Response {
+	return &Response{
+		Value: &Response_VerifyVoteExtension{&res},
+	}
+}
+
+func ToResponsePrepareProposal(res ResponsePrepareProposal) *Response {
+	return &Response{
+		Value: &Response_PrepareProposal{&res},
+	}
+}

abci/types/messages_test.go

@@ -14,7 +14,7 @@ import (
 
 func TestMarshalJSON(t *testing.T) {
 	b, err := json.Marshal(&ResponseDeliverTx{})
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 	// include empty fields.
 	assert.True(t, strings.Contains(string(b), "code"))
 	r1 := ResponseCheckTx{
@@ -31,11 +31,11 @@ func TestMarshalJSON(t *testing.T) {
 		},
 	}
 	b, err = json.Marshal(&r1)
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 
 	var r2 ResponseCheckTx
 	err = json.Unmarshal(b, &r2)
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 	assert.Equal(t, r1, r2)
 }
 
@@ -49,11 +49,11 @@ func TestWriteReadMessageSimple(t *testing.T) {
 	for _, c := range cases {
 		buf := new(bytes.Buffer)
 		err := WriteMessage(c, buf)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		msg := new(RequestEcho)
 		err = ReadMessage(buf, msg)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		assert.True(t, proto.Equal(c, msg))
 	}
@@ -71,11 +71,11 @@ func TestWriteReadMessage(t *testing.T) {
 	for _, c := range cases {
 		buf := new(bytes.Buffer)
 		err := WriteMessage(c, buf)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		msg := new(tmproto.Header)
 		err = ReadMessage(buf, msg)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		assert.True(t, proto.Equal(c, msg))
 	}
@@ -103,11 +103,11 @@ func TestWriteReadMessage2(t *testing.T) {
 	for _, c := range cases {
 		buf := new(bytes.Buffer)
 		err := WriteMessage(c, buf)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		msg := new(ResponseCheckTx)
 		err = ReadMessage(buf, msg)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 
 		assert.True(t, proto.Equal(c, msg))
 	}

abci/types/result.go

@@ -5,6 +5,8 @@ import (
 	"encoding/json"
 
 	"github.com/gogo/protobuf/jsonpb"
+
+	types "github.com/tendermint/tendermint/proto/tendermint/types"
 )
 
 const (
@@ -41,6 +43,16 @@ func (r ResponseQuery) IsErr() bool {
 	return r.Code != CodeTypeOK
 }
 
+// IsOK returns true if Code is OK
+func (r ResponseVerifyVoteExtension) IsOK() bool {
+	return r.Result <= ResponseVerifyVoteExtension_ACCEPT
+}
+
+// IsErr returns true if Code is something other than OK.
+func (r ResponseVerifyVoteExtension) IsErr() bool {
+	return r.Result > ResponseVerifyVoteExtension_ACCEPT
+}
+
 //---------------------------------------------------------------------------
 // override JSON marshaling so we emit defaults (ie. disable omitempty)
 
@@ -118,3 +130,25 @@ var _ jsonRoundTripper = (*ResponseDeliverTx)(nil)
 var _ jsonRoundTripper = (*ResponseCheckTx)(nil)
 
 var _ jsonRoundTripper = (*EventAttribute)(nil)
+
+// -----------------------------------------------
+// construct Result data
+
+func RespondExtendVote(appDataToSign, appDataSelfAuthenticating []byte) ResponseExtendVote {
+	return ResponseExtendVote{
+		VoteExtension: &types.VoteExtension{
+			AppDataToSign:             appDataToSign,
+			AppDataSelfAuthenticating: appDataSelfAuthenticating,
+		},
+	}
+}
+
+func RespondVerifyVoteExtension(ok bool) ResponseVerifyVoteExtension {
+	result := ResponseVerifyVoteExtension_REJECT
+	if ok {
+		result = ResponseVerifyVoteExtension_ACCEPT
+	}
+	return ResponseVerifyVoteExtension{
+		Result: result,
+	}
+}

abci/version/version.go

@@ -1,9 +0,0 @@
-package version
-
-import (
-	"github.com/tendermint/tendermint/version"
-)
-
-// TODO: eliminate this after some version refactor
-
-const Version = version.ABCIVersion

cmd/priv_val_server/main.go

@@ -9,6 +9,8 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"os/signal"
+	"syscall"
 	"time"
 
 	grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
@@ -19,7 +21,6 @@ import (
 
 	"github.com/tendermint/tendermint/libs/log"
 	tmnet "github.com/tendermint/tendermint/libs/net"
-	tmos "github.com/tendermint/tendermint/libs/os"
 	"github.com/tendermint/tendermint/privval"
 	grpcprivval "github.com/tendermint/tendermint/privval/grpc"
 	privvalproto "github.com/tendermint/tendermint/proto/tendermint/privval"
@@ -45,7 +46,7 @@ func main() {
 		rootCA           = flag.String("rootcafile", "", "absolute path to root CA")
 		prometheusAddr   = flag.String("prometheus-addr", "", "address for prometheus endpoint (host:port)")
 
-		logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false).
+		logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo).
 			With("module", "priv_val")
 	)
 	flag.Parse()
@@ -133,9 +134,10 @@ func main() {
 		os.Exit(1)
 	}
 
-	// Stop upon receiving SIGTERM or CTRL-C.
-	tmos.TrapSignal(ctx, logger, func() {
-		logger.Debug("SignerServer: calling Close")
+	opctx, opcancel := signal.NotifyContext(ctx, os.Interrupt, syscall.SIGTERM)
+	defer opcancel()
+	go func() {
+		<-opctx.Done()
 		if *prometheusAddr != "" {
 			ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
 			defer cancel()
@@ -145,7 +147,7 @@ func main() {
 			}
 		}
 		s.GracefulStop()
-	})
+	}()
 
 	// Run forever.
 	select {}

cmd/tendermint/commands/debug/debug.go

@@ -15,7 +15,7 @@ var (
 	flagProfAddr    = "pprof-laddr"
 	flagFrequency   = "frequency"
 
-	logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
+	logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo)
 )
 
 // DebugCmd defines the root command containing subcommands that assist in

cmd/tendermint/commands/debug/dump.go

@@ -1,6 +1,7 @@
 package debug
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"os"
@@ -42,7 +43,7 @@ func init() {
 	)
 }
 
-func dumpCmdHandler(_ *cobra.Command, args []string) error {
+func dumpCmdHandler(cmd *cobra.Command, args []string) error {
 	outDir := args[0]
 	if outDir == "" {
 		return errors.New("invalid output directory")
@@ -63,22 +64,24 @@ func dumpCmdHandler(_ *cobra.Command, args []string) error {
 		return fmt.Errorf("failed to create new http client: %w", err)
 	}
 
+	ctx := cmd.Context()
+
 	home := viper.GetString(cli.HomeFlag)
 	conf := config.DefaultConfig()
 	conf = conf.SetRoot(home)
 	config.EnsureRoot(conf.RootDir)
 
-	dumpDebugData(outDir, conf, rpc)
+	dumpDebugData(ctx, outDir, conf, rpc)
 
 	ticker := time.NewTicker(time.Duration(frequency) * time.Second)
 	for range ticker.C {
-		dumpDebugData(outDir, conf, rpc)
+		dumpDebugData(ctx, outDir, conf, rpc)
 	}
 
 	return nil
 }
 
-func dumpDebugData(outDir string, conf *config.Config, rpc *rpchttp.HTTP) {
+func dumpDebugData(ctx context.Context, outDir string, conf *config.Config, rpc *rpchttp.HTTP) {
 	start := time.Now().UTC()
 
 	tmpDir, err := os.MkdirTemp(outDir, "tendermint_debug_tmp")
@@ -89,19 +92,19 @@ func dumpDebugData(outDir string, conf *config.Config, rpc *rpchttp.HTTP) {
 	defer os.RemoveAll(tmpDir)
 
 	logger.Info("getting node status...")
-	if err := dumpStatus(rpc, tmpDir, "status.json"); err != nil {
+	if err := dumpStatus(ctx, rpc, tmpDir, "status.json"); err != nil {
 		logger.Error("failed to dump node status", "error", err)
 		return
 	}
 
 	logger.Info("getting node network info...")
-	if err := dumpNetInfo(rpc, tmpDir, "net_info.json"); err != nil {
+	if err := dumpNetInfo(ctx, rpc, tmpDir, "net_info.json"); err != nil {
 		logger.Error("failed to dump node network info", "error", err)
 		return
 	}
 
 	logger.Info("getting node consensus state...")
-	if err := dumpConsensusState(rpc, tmpDir, "consensus_state.json"); err != nil {
+	if err := dumpConsensusState(ctx, rpc, tmpDir, "consensus_state.json"); err != nil {
 		logger.Error("failed to dump node consensus state", "error", err)
 		return
 	}

cmd/tendermint/commands/debug/kill.go

@@ -33,6 +33,7 @@ $ tendermint debug kill 34255 /path/to/tm-debug.zip`,
 }
 
 func killCmdHandler(cmd *cobra.Command, args []string) error {
+	ctx := cmd.Context()
 	pid, err := strconv.ParseInt(args[0], 10, 64)
 	if err != nil {
 		return err
@@ -62,17 +63,17 @@ func killCmdHandler(cmd *cobra.Command, args []string) error {
 	defer os.RemoveAll(tmpDir)
 
 	logger.Info("getting node status...")
-	if err := dumpStatus(rpc, tmpDir, "status.json"); err != nil {
+	if err := dumpStatus(ctx, rpc, tmpDir, "status.json"); err != nil {
 		return err
 	}
 
 	logger.Info("getting node network info...")
-	if err := dumpNetInfo(rpc, tmpDir, "net_info.json"); err != nil {
+	if err := dumpNetInfo(ctx, rpc, tmpDir, "net_info.json"); err != nil {
 		return err
 	}
 
 	logger.Info("getting node consensus state...")
-	if err := dumpConsensusState(rpc, tmpDir, "consensus_state.json"); err != nil {
+	if err := dumpConsensusState(ctx, rpc, tmpDir, "consensus_state.json"); err != nil {
 		return err
 	}
 

cmd/tendermint/commands/debug/util.go

@@ -15,8 +15,8 @@ import (
 
 // dumpStatus gets node status state dump from the Tendermint RPC and writes it
 // to file. It returns an error upon failure.
-func dumpStatus(rpc *rpchttp.HTTP, dir, filename string) error {
-	status, err := rpc.Status(context.Background())
+func dumpStatus(ctx context.Context, rpc *rpchttp.HTTP, dir, filename string) error {
+	status, err := rpc.Status(ctx)
 	if err != nil {
 		return fmt.Errorf("failed to get node status: %w", err)
 	}
@@ -26,8 +26,8 @@ func dumpStatus(rpc *rpchttp.HTTP, dir, filename string) error {
 
 // dumpNetInfo gets network information state dump from the Tendermint RPC and
 // writes it to file. It returns an error upon failure.
-func dumpNetInfo(rpc *rpchttp.HTTP, dir, filename string) error {
-	netInfo, err := rpc.NetInfo(context.Background())
+func dumpNetInfo(ctx context.Context, rpc *rpchttp.HTTP, dir, filename string) error {
+	netInfo, err := rpc.NetInfo(ctx)
 	if err != nil {
 		return fmt.Errorf("failed to get node network information: %w", err)
 	}
@@ -37,8 +37,8 @@ func dumpNetInfo(rpc *rpchttp.HTTP, dir, filename string) error {
 
 // dumpConsensusState gets consensus state dump from the Tendermint RPC and
 // writes it to file. It returns an error upon failure.
-func dumpConsensusState(rpc *rpchttp.HTTP, dir, filename string) error {
-	consDump, err := rpc.DumpConsensusState(context.Background())
+func dumpConsensusState(ctx context.Context, rpc *rpchttp.HTTP, dir, filename string) error {
+	consDump, err := rpc.DumpConsensusState(ctx)
 	if err != nil {
 		return fmt.Errorf("failed to get node consensus dump: %w", err)
 	}

cmd/tendermint/commands/gen_node_key.go

@@ -1,11 +1,11 @@
 package commands
 
 import (
+	"encoding/json"
 	"fmt"
 
 	"github.com/spf13/cobra"
 
-	tmjson "github.com/tendermint/tendermint/libs/json"
 	"github.com/tendermint/tendermint/types"
 )
 
@@ -20,7 +20,7 @@ var GenNodeKeyCmd = &cobra.Command{
 func genNodeKey(cmd *cobra.Command, args []string) error {
 	nodeKey := types.GenNodeKey()
 
-	bz, err := tmjson.Marshal(nodeKey)
+	bz, err := json.Marshal(nodeKey)
 	if err != nil {
 		return fmt.Errorf("nodeKey -> json: %w", err)
 	}

cmd/tendermint/commands/gen_validator.go

@@ -1,11 +1,11 @@
 package commands
 
 import (
+	"encoding/json"
 	"fmt"
 
 	"github.com/spf13/cobra"
 
-	tmjson "github.com/tendermint/tendermint/libs/json"
 	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/types"
 )
@@ -29,7 +29,7 @@ func genValidator(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	jsbz, err := tmjson.Marshal(pv)
+	jsbz, err := json.Marshal(pv)
 	if err != nil {
 		return fmt.Errorf("validator -> json: %w", err)
 	}

cmd/tendermint/commands/init.go

@@ -39,10 +39,10 @@ func initFiles(cmd *cobra.Command, args []string) error {
 		return errors.New("must specify a node type: tendermint init [validator|full|seed]")
 	}
 	config.Mode = args[0]
-	return initFilesWithConfig(config)
+	return initFilesWithConfig(cmd.Context(), config)
 }
 
-func initFilesWithConfig(config *cfg.Config) error {
+func initFilesWithConfig(ctx context.Context, config *cfg.Config) error {
 	var (
 		pv  *privval.FilePV
 		err error
@@ -65,7 +65,9 @@ func initFilesWithConfig(config *cfg.Config) error {
 			if err != nil {
 				return err
 			}
-			pv.Save()
+			if err := pv.Save(); err != nil {
+				return err
+			}
 			logger.Info("Generated private validator", "keyFile", privValKeyFile,
 				"stateFile", privValStateFile)
 		}
@@ -98,7 +100,7 @@ func initFilesWithConfig(config *cfg.Config) error {
 			}
 		}
 
-		ctx, cancel := context.WithTimeout(context.TODO(), ctxTimeout)
+		ctx, cancel := context.WithTimeout(ctx, ctxTimeout)
 		defer cancel()
 
 		// if this is a validator we add it to genesis

cmd/tendermint/commands/light.go

@@ -17,7 +17,6 @@ import (
 
 	"github.com/tendermint/tendermint/libs/log"
 	tmmath "github.com/tendermint/tendermint/libs/math"
-	tmos "github.com/tendermint/tendermint/libs/os"
 	"github.com/tendermint/tendermint/light"
 	lproxy "github.com/tendermint/tendermint/light/proxy"
 	lrpc "github.com/tendermint/tendermint/light/rpc"
@@ -103,7 +102,7 @@ func init() {
 }
 
 func runProxy(cmd *cobra.Command, args []string) error {
-	logger, err := log.NewDefaultLogger(logFormat, logLevel, false)
+	logger, err := log.NewDefaultLogger(logFormat, logLevel)
 	if err != nil {
 		return err
 	}
@@ -188,15 +187,14 @@ func runProxy(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	// Stop upon receiving SIGTERM or CTRL-C.
-	tmos.TrapSignal(cmd.Context(), logger, func() {
-		p.Listener.Close()
-	})
-
-	// this might be redundant to the above, eventually.
 	ctx, cancel := signal.NotifyContext(cmd.Context(), syscall.SIGTERM)
 	defer cancel()
 
+	go func() {
+		<-ctx.Done()
+		p.Listener.Close()
+	}()
+
 	logger.Info("Starting proxy...", "laddr", listenAddr)
 	if err := p.ListenAndServe(ctx); err != http.ErrServerClosed {
 		// Error starting or closing listener:

cmd/tendermint/commands/reindex_event_test.go

@@ -25,13 +25,13 @@ const (
 	base   int64 = 2
 )
 
-func setupReIndexEventCmd() *cobra.Command {
+func setupReIndexEventCmd(ctx context.Context) *cobra.Command {
 	reIndexEventCmd := &cobra.Command{
 		Use: ReIndexEventCmd.Use,
 		Run: func(cmd *cobra.Command, args []string) {},
 	}
 
-	_ = reIndexEventCmd.ExecuteContext(context.Background())
+	_ = reIndexEventCmd.ExecuteContext(ctx)
 
 	return reIndexEventCmd
 }
@@ -177,11 +177,14 @@ func TestReIndexEvent(t *testing.T) {
 		{height, height, false},
 	}
 
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
 	for _, tc := range testCases {
 		startHeight = tc.startHeight
 		endHeight = tc.endHeight
 
-		err := eventReIndex(setupReIndexEventCmd(), []indexer.EventSink{mockEventSink}, mockBlockStore, mockStateStore)
+		err := eventReIndex(setupReIndexEventCmd(ctx), []indexer.EventSink{mockEventSink}, mockBlockStore, mockStateStore)
 		if tc.reIndexErr {
 			require.Error(t, err)
 		} else {

cmd/tendermint/commands/reset_priv_validator.go

@@ -53,7 +53,7 @@ func ResetAll(dbDir, privValKeyFile, privValStateFile string, logger log.Logger)
 	if err := os.RemoveAll(dbDir); err == nil {
 		logger.Info("Removed all blockchain history", "dir", dbDir)
 	} else {
-		logger.Error("Error removing all blockchain history", "dir", dbDir, "err", err)
+		logger.Error("error removing all blockchain history", "dir", dbDir, "err", err)
 	}
 	// recreate the dbDir since the privVal state needs to live there
 	if err := tmos.EnsureDir(dbDir, 0700); err != nil {
@@ -68,7 +68,9 @@ func resetFilePV(privValKeyFile, privValStateFile string, logger log.Logger) err
 		if err != nil {
 			return err
 		}
-		pv.Reset()
+		if err := pv.Reset(); err != nil {
+			return err
+		}
 		logger.Info("Reset private validator file to genesis state", "keyFile", privValKeyFile,
 			"stateFile", privValStateFile)
 	} else {
@@ -76,7 +78,9 @@ func resetFilePV(privValKeyFile, privValStateFile string, logger log.Logger) err
 		if err != nil {
 			return err
 		}
-		pv.Save()
+		if err := pv.Save(); err != nil {
+			return err
+		}
 		logger.Info("Generated private validator file", "keyFile", privValKeyFile,
 			"stateFile", privValStateFile)
 	}

cmd/tendermint/commands/rollback_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/tendermint/tendermint/cmd/tendermint/commands"
+	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/rpc/client/local"
 	rpctest "github.com/tendermint/tendermint/rpc/test"
 	e2e "github.com/tendermint/tendermint/test/e2e/app"
@@ -49,7 +50,9 @@ func TestRollbackIntegration(t *testing.T) {
 		node2, _, err2 := rpctest.StartTendermint(ctx, cfg, app, rpctest.SuppressStdout)
 		require.NoError(t, err2)
 
-		client, err := local.New(node2.(local.NodeService))
+		logger := log.NewTestingLogger(t)
+
+		client, err := local.New(logger, node2.(local.NodeService))
 		require.NoError(t, err)
 
 		ticker := time.NewTicker(200 * time.Millisecond)

cmd/tendermint/commands/root.go

@@ -13,7 +13,7 @@ import (
 
 var (
 	config     = cfg.DefaultConfig()
-	logger     = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
+	logger     = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo)
 	ctxTimeout = 4 * time.Second
 )
 
@@ -36,7 +36,7 @@ func ParseConfig() (*cfg.Config, error) {
 	conf.SetRoot(conf.RootDir)
 	cfg.EnsureRoot(conf.RootDir)
 	if err := conf.ValidateBasic(); err != nil {
-		return nil, fmt.Errorf("error in config file: %v", err)
+		return nil, fmt.Errorf("error in config file: %w", err)
 	}
 	return conf, nil
 }
@@ -55,7 +55,7 @@ var RootCmd = &cobra.Command{
 			return err
 		}
 
-		logger, err = log.NewDefaultLogger(config.LogFormat, config.LogLevel, false)
+		logger, err = log.NewDefaultLogger(config.LogFormat, config.LogLevel)
 		if err != nil {
 			return err
 		}

cmd/tendermint/commands/root_test.go

@@ -18,17 +18,12 @@ import (
 )
 
 // clearConfig clears env vars, the given root dir, and resets viper.
-func clearConfig(dir string) {
-	if err := os.Unsetenv("TMHOME"); err != nil {
-		panic(err)
-	}
-	if err := os.Unsetenv("TM_HOME"); err != nil {
-		panic(err)
-	}
+func clearConfig(t *testing.T, dir string) {
+	t.Helper()
+	require.NoError(t, os.Unsetenv("TMHOME"))
+	require.NoError(t, os.Unsetenv("TM_HOME"))
+	require.NoError(t, os.RemoveAll(dir))
 
-	if err := os.RemoveAll(dir); err != nil {
-		panic(err)
-	}
 	viper.Reset()
 	config = cfg.DefaultConfig()
 }
@@ -46,8 +41,9 @@ func testRootCmd() *cobra.Command {
 	return rootCmd
 }
 
-func testSetup(rootDir string, args []string, env map[string]string) error {
-	clearConfig(rootDir)
+func testSetup(t *testing.T, rootDir string, args []string, env map[string]string) error {
+	t.Helper()
+	clearConfig(t, rootDir)
 
 	rootCmd := testRootCmd()
 	cmd := cli.PrepareBaseCmd(rootCmd, "TM", rootDir)
@@ -73,8 +69,8 @@ func TestRootHome(t *testing.T) {
 	for i, tc := range cases {
 		idxString := strconv.Itoa(i)
 
-		err := testSetup(defaultRoot, tc.args, tc.env)
-		require.Nil(t, err, idxString)
+		err := testSetup(t, defaultRoot, tc.args, tc.env)
+		require.NoError(t, err, idxString)
 
 		assert.Equal(t, tc.root, config.RootDir, idxString)
 		assert.Equal(t, tc.root, config.P2P.RootDir, idxString)
@@ -105,8 +101,8 @@ func TestRootFlagsEnv(t *testing.T) {
 	for i, tc := range cases {
 		idxString := strconv.Itoa(i)
 
-		err := testSetup(defaultRoot, tc.args, tc.env)
-		require.Nil(t, err, idxString)
+		err := testSetup(t, defaultRoot, tc.args, tc.env)
+		require.NoError(t, err, idxString)
 
 		assert.Equal(t, tc.logLevel, config.LogLevel, idxString)
 	}
@@ -134,17 +130,17 @@ func TestRootConfig(t *testing.T) {
 	for i, tc := range cases {
 		defaultRoot := t.TempDir()
 		idxString := strconv.Itoa(i)
-		clearConfig(defaultRoot)
+		clearConfig(t, defaultRoot)
 
 		// XXX: path must match cfg.defaultConfigPath
 		configFilePath := filepath.Join(defaultRoot, "config")
 		err := tmos.EnsureDir(configFilePath, 0700)
-		require.Nil(t, err)
+		require.NoError(t, err)
 
 		// write the non-defaults to a different path
 		// TODO: support writing sub configs so we can test that too
 		err = WriteConfigVals(configFilePath, cvals)
-		require.Nil(t, err)
+		require.NoError(t, err)
 
 		rootCmd := testRootCmd()
 		cmd := cli.PrepareBaseCmd(rootCmd, "TM", defaultRoot)
@@ -152,7 +148,7 @@ func TestRootConfig(t *testing.T) {
 		// run with the args and env
 		tc.args = append([]string{rootCmd.Use}, tc.args...)
 		err = cli.RunWithArgs(cmd, tc.args, tc.env)
-		require.Nil(t, err, idxString)
+		require.NoError(t, err, idxString)
 
 		assert.Equal(t, tc.logLvl, config.LogLevel, idxString)
 	}

cmd/tendermint/commands/run_node.go

@@ -62,7 +62,7 @@ func AddNodeFlags(cmd *cobra.Command) {
 		"p2p.laddr",
 		config.P2P.ListenAddress,
 		"node listen address. (0.0.0.0:0 means any interface, any port)")
-	cmd.Flags().String("p2p.seeds", config.P2P.Seeds, "comma-delimited ID@host:port seed nodes")
+	cmd.Flags().String("p2p.seeds", config.P2P.Seeds, "comma-delimited ID@host:port seed nodes") //nolint: staticcheck
 	cmd.Flags().String("p2p.persistent-peers", config.P2P.PersistentPeers, "comma-delimited ID@host:port persistent peers")
 	cmd.Flags().Bool("p2p.upnp", config.P2P.UPNP, "enable/disable UPNP port forwarding")
 	cmd.Flags().Bool("p2p.pex", config.P2P.PexReactor, "enable/disable Peer-Exchange")

cmd/tendermint/commands/show_validator.go

@@ -7,7 +7,7 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/tendermint/tendermint/crypto"
-	tmjson "github.com/tendermint/tendermint/libs/json"
+	"github.com/tendermint/tendermint/internal/jsontypes"
 	tmnet "github.com/tendermint/tendermint/libs/net"
 	tmos "github.com/tendermint/tendermint/libs/os"
 	"github.com/tendermint/tendermint/privval"
@@ -25,13 +25,14 @@ func showValidator(cmd *cobra.Command, args []string) error {
 	var (
 		pubKey crypto.PubKey
 		err    error
+		bctx   = cmd.Context()
 	)
-
 	//TODO: remove once gRPC is the only supported protocol
 	protocol, _ := tmnet.ProtocolAndAddress(config.PrivValidator.ListenAddr)
 	switch protocol {
 	case "grpc":
 		pvsc, err := tmgrpc.DialRemoteSigner(
+			bctx,
 			config.PrivValidator,
 			config.ChainID(),
 			logger,
@@ -41,7 +42,7 @@ func showValidator(cmd *cobra.Command, args []string) error {
 			return fmt.Errorf("can't connect to remote validator %w", err)
 		}
 
-		ctx, cancel := context.WithTimeout(context.TODO(), ctxTimeout)
+		ctx, cancel := context.WithTimeout(bctx, ctxTimeout)
 		defer cancel()
 
 		pubKey, err = pvsc.GetPubKey(ctx)
@@ -60,7 +61,7 @@ func showValidator(cmd *cobra.Command, args []string) error {
 			return err
 		}
 
-		ctx, cancel := context.WithTimeout(context.TODO(), ctxTimeout)
+		ctx, cancel := context.WithTimeout(bctx, ctxTimeout)
 		defer cancel()
 
 		pubKey, err = pv.GetPubKey(ctx)
@@ -69,7 +70,7 @@ func showValidator(cmd *cobra.Command, args []string) error {
 		}
 	}
 
-	bz, err := tmjson.Marshal(pubKey)
+	bz, err := jsontypes.Marshal(pubKey)
 	if err != nil {
 		return fmt.Errorf("failed to marshal private validator pubkey: %w", err)
 	}

cmd/tendermint/commands/testnet.go

@@ -122,7 +122,7 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 	}
 
 	genVals := make([]types.GenesisValidator, nValidators)
-
+	ctx := cmd.Context()
 	for i := 0; i < nValidators; i++ {
 		nodeDirName := fmt.Sprintf("%s%d", nodeDirPrefix, i)
 		nodeDir := filepath.Join(outputDir, nodeDirName)
@@ -139,7 +139,7 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 			return err
 		}
 
-		if err := initFilesWithConfig(config); err != nil {
+		if err := initFilesWithConfig(ctx, config); err != nil {
 			return err
 		}
 
@@ -150,7 +150,7 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 			return err
 		}
 
-		ctx, cancel := context.WithTimeout(context.TODO(), ctxTimeout)
+		ctx, cancel := context.WithTimeout(ctx, ctxTimeout)
 		defer cancel()
 
 		pubKey, err := pv.GetPubKey(ctx)
@@ -181,7 +181,7 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 			return err
 		}
 
-		if err := initFilesWithConfig(config); err != nil {
+		if err := initFilesWithConfig(ctx, config); err != nil {
 			return err
 		}
 	}

config/config.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"encoding/hex"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
@@ -9,7 +10,6 @@ import (
 	"path/filepath"
 	"time"
 
-	tmjson "github.com/tendermint/tendermint/libs/json"
 	"github.com/tendermint/tendermint/libs/log"
 	tmos "github.com/tendermint/tendermint/libs/os"
 	"github.com/tendermint/tendermint/types"
@@ -270,7 +270,7 @@ func (cfg BaseConfig) LoadNodeKeyID() (types.NodeID, error) {
 		return "", err
 	}
 	nodeKey := types.NodeKey{}
-	err = tmjson.Unmarshal(jsonBytes, &nodeKey)
+	err = json.Unmarshal(jsonBytes, &nodeKey)
 	if err != nil {
 		return "", err
 	}
@@ -571,9 +571,11 @@ type P2PConfig struct { //nolint: maligned
 
 	// Comma separated list of seed nodes to connect to
 	// We only use these if we can’t connect to peers in the addrbook
-	// NOTE: not used by the new PEX reactor. Please use BootstrapPeers instead.
-	// TODO: Remove once p2p refactor is complete
-	// ref: https://github.com/tendermint/tendermint/issues/5670
+	//
+	// Deprecated: This value is not used by the new PEX reactor. Use
+	// BootstrapPeers instead.
+	//
+	// TODO(#5670): Remove once the p2p refactor is complete.
 	Seeds string `mapstructure:"seeds"`
 
 	// Comma separated list of peers to be added to the peer store
@@ -681,7 +683,6 @@ func TestP2PConfig() *P2PConfig {
 	cfg.ListenAddress = "tcp://127.0.0.1:36656"
 	cfg.AllowDuplicateIP = true
 	cfg.FlushThrottleTimeout = 10 * time.Millisecond
-
 	return cfg
 }
 

config/config_test.go

@@ -10,21 +10,19 @@ import (
 )
 
 func TestDefaultConfig(t *testing.T) {
-	assert := assert.New(t)
-
 	// set up some defaults
 	cfg := DefaultConfig()
-	assert.NotNil(cfg.P2P)
-	assert.NotNil(cfg.Mempool)
-	assert.NotNil(cfg.Consensus)
+	assert.NotNil(t, cfg.P2P)
+	assert.NotNil(t, cfg.Mempool)
+	assert.NotNil(t, cfg.Consensus)
 
 	// check the root dir stuff...
 	cfg.SetRoot("/foo")
 	cfg.Genesis = "bar"
 	cfg.DBPath = "/opt/data"
 
-	assert.Equal("/foo/bar", cfg.GenesisFile())
-	assert.Equal("/opt/data", cfg.DBDir())
+	assert.Equal(t, "/foo/bar", cfg.GenesisFile())
+	assert.Equal(t, "/opt/data", cfg.DBDir())
 }
 
 func TestConfigValidateBasic(t *testing.T) {
@@ -37,19 +35,18 @@ func TestConfigValidateBasic(t *testing.T) {
 }
 
 func TestTLSConfiguration(t *testing.T) {
-	assert := assert.New(t)
 	cfg := DefaultConfig()
 	cfg.SetRoot("/home/user")
 
 	cfg.RPC.TLSCertFile = "file.crt"
-	assert.Equal("/home/user/config/file.crt", cfg.RPC.CertFile())
+	assert.Equal(t, "/home/user/config/file.crt", cfg.RPC.CertFile())
 	cfg.RPC.TLSKeyFile = "file.key"
-	assert.Equal("/home/user/config/file.key", cfg.RPC.KeyFile())
+	assert.Equal(t, "/home/user/config/file.key", cfg.RPC.KeyFile())
 
 	cfg.RPC.TLSCertFile = "/abs/path/to/file.crt"
-	assert.Equal("/abs/path/to/file.crt", cfg.RPC.CertFile())
+	assert.Equal(t, "/abs/path/to/file.crt", cfg.RPC.CertFile())
 	cfg.RPC.TLSKeyFile = "/abs/path/to/file.key"
-	assert.Equal("/abs/path/to/file.key", cfg.RPC.KeyFile())
+	assert.Equal(t, "/abs/path/to/file.key", cfg.RPC.KeyFile())
 }
 
 func TestBaseConfigValidateBasic(t *testing.T) {

config/toml.go

@@ -9,6 +9,7 @@ import (
 	"text/template"
 
 	tmos "github.com/tendermint/tendermint/libs/os"
+	tmrand "github.com/tendermint/tendermint/libs/rand"
 )
 
 // DefaultDirPerm is the default permissions used when creating directories.
@@ -549,6 +550,7 @@ func ResetTestRootWithChainID(testName string, chainID string) (*Config, error)
 	}
 
 	config := TestConfig().SetRoot(rootDir)
+	config.Instrumentation.Namespace = fmt.Sprintf("%s_%s_%s", testName, chainID, tmrand.Str(16))
 	return config, nil
 }
 
@@ -569,6 +571,10 @@ var testGenesisFmt = `{
 			"max_gas": "-1",
 			"time_iota_ms": "10"
 		},
+		"synchrony": {
+			"message_delay": "500000000",
+			"precision": "10000000"
+		},
 		"evidence": {
 			"max_age_num_blocks": "100000",
 			"max_age_duration": "172800000000000",

config/toml_test.go

@@ -14,26 +14,24 @@ func ensureFiles(t *testing.T, rootDir string, files ...string) {
 	for _, f := range files {
 		p := rootify(rootDir, f)
 		_, err := os.Stat(p)
-		assert.Nil(t, err, p)
+		assert.NoError(t, err, p)
 	}
 }
 
 func TestEnsureRoot(t *testing.T) {
-	require := require.New(t)
-
 	// setup temp dir for test
 	tmpDir, err := os.MkdirTemp("", "config-test")
-	require.NoError(err)
+	require.NoError(t, err)
 	defer os.RemoveAll(tmpDir)
 
 	// create root dir
 	EnsureRoot(tmpDir)
 
-	require.NoError(WriteConfigFile(tmpDir, DefaultConfig()))
+	require.NoError(t, WriteConfigFile(tmpDir, DefaultConfig()))
 
 	// make sure config is set properly
 	data, err := os.ReadFile(filepath.Join(tmpDir, defaultConfigFilePath))
-	require.NoError(err)
+	require.NoError(t, err)
 
 	checkConfig(t, string(data))
 
@@ -41,19 +39,17 @@ func TestEnsureRoot(t *testing.T) {
 }
 
 func TestEnsureTestRoot(t *testing.T) {
-	require := require.New(t)
-
 	testName := "ensureTestRoot"
 
 	// create root dir
 	cfg, err := ResetTestRoot(testName)
-	require.NoError(err)
+	require.NoError(t, err)
 	defer os.RemoveAll(cfg.RootDir)
 	rootDir := cfg.RootDir
 
 	// make sure config is set properly
 	data, err := os.ReadFile(filepath.Join(rootDir, defaultConfigFilePath))
-	require.Nil(err)
+	require.NoError(t, err)
 
 	checkConfig(t, string(data))
 

crypto/crypto.go

@@ -2,6 +2,7 @@ package crypto
 
 import (
 	"github.com/tendermint/tendermint/crypto/tmhash"
+	"github.com/tendermint/tendermint/internal/jsontypes"
 	"github.com/tendermint/tendermint/libs/bytes"
 )
 
@@ -25,6 +26,9 @@ type PubKey interface {
 	VerifySignature(msg []byte, sig []byte) bool
 	Equals(PubKey) bool
 	Type() string
+
+	// Implementations must support tagged encoding in JSON.
+	jsontypes.Tagged
 }
 
 type PrivKey interface {
@@ -33,6 +37,9 @@ type PrivKey interface {
 	PubKey() PubKey
 	Equals(PrivKey) bool
 	Type() string
+
+	// Implementations must support tagged encoding in JSON.
+	jsontypes.Tagged
 }
 
 type Symmetric interface {

crypto/ed25519/ed25519.go

@@ -12,7 +12,7 @@ import (
 
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/tmhash"
-	tmjson "github.com/tendermint/tendermint/libs/json"
+	"github.com/tendermint/tendermint/internal/jsontypes"
 )
 
 //-------------------------------------
@@ -56,13 +56,16 @@ const (
 )
 
 func init() {
-	tmjson.RegisterType(PubKey{}, PubKeyName)
-	tmjson.RegisterType(PrivKey{}, PrivKeyName)
+	jsontypes.MustRegister(PubKey{})
+	jsontypes.MustRegister(PrivKey{})
 }
 
 // PrivKey implements crypto.PrivKey.
 type PrivKey []byte
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PrivKey) TypeTag() string { return PrivKeyName }
+
 // Bytes returns the privkey byte format.
 func (privKey PrivKey) Bytes() []byte {
 	return []byte(privKey)
@@ -151,6 +154,9 @@ var _ crypto.PubKey = PubKey{}
 // PubKeyEd25519 implements crypto.PubKey for the Ed25519 signature scheme.
 type PubKey []byte
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PubKey) TypeTag() string { return PubKeyName }
+
 // Address is the SHA256-20 of the raw pubkey bytes.
 func (pubKey PubKey) Address() crypto.Address {
 	if len(pubKey) != PubKeySize {

crypto/ed25519/ed25519_test.go

@@ -17,7 +17,7 @@ func TestSignAndValidateEd25519(t *testing.T) {
 
 	msg := crypto.CRandBytes(128)
 	sig, err := privKey.Sign(msg)
-	require.Nil(t, err)
+	require.NoError(t, err)
 
 	// Test the signature
 	assert.True(t, pubKey.VerifySignature(msg, sig))

crypto/encoding/codec.go

@@ -7,14 +7,14 @@ import (
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/crypto/secp256k1"
 	"github.com/tendermint/tendermint/crypto/sr25519"
-	"github.com/tendermint/tendermint/libs/json"
+	"github.com/tendermint/tendermint/internal/jsontypes"
 	cryptoproto "github.com/tendermint/tendermint/proto/tendermint/crypto"
 )
 
 func init() {
-	json.RegisterType((*cryptoproto.PublicKey)(nil), "tendermint.crypto.PublicKey")
-	json.RegisterType((*cryptoproto.PublicKey_Ed25519)(nil), "tendermint.crypto.PublicKey_Ed25519")
-	json.RegisterType((*cryptoproto.PublicKey_Secp256K1)(nil), "tendermint.crypto.PublicKey_Secp256K1")
+	jsontypes.MustRegister((*cryptoproto.PublicKey)(nil))
+	jsontypes.MustRegister((*cryptoproto.PublicKey_Ed25519)(nil))
+	jsontypes.MustRegister((*cryptoproto.PublicKey_Secp256K1)(nil))
 }
 
 // PubKeyToProto takes crypto.PubKey and transforms it to a protobuf Pubkey

crypto/merkle/proof.go

@@ -24,10 +24,10 @@ const (
 // everything.  This also affects the generalized proof system as
 // well.
 type Proof struct {
-	Total    int64    `json:"total"`     // Total number of items.
-	Index    int64    `json:"index"`     // Index of item to prove.
-	LeafHash []byte   `json:"leaf_hash"` // Hash of item value.
-	Aunts    [][]byte `json:"aunts"`     // Hashes from leaf's sibling to a root's child.
+	Total    int64    `json:"total,string"` // Total number of items.
+	Index    int64    `json:"index,string"` // Index of item to prove.
+	LeafHash []byte   `json:"leaf_hash"`    // Hash of item value.
+	Aunts    [][]byte `json:"aunts"`        // Hashes from leaf's sibling to a root's child.
 }
 
 // ProofsFromByteSlices computes inclusion proof for given items.

crypto/merkle/proof_key_path_test.go

@@ -28,13 +28,13 @@ func TestKeyPath(t *testing.T) {
 			case KeyEncodingHex:
 				rand.Read(keys[i])
 			default:
-				panic("Unexpected encoding")
+				require.Fail(t, "Unexpected encoding")
 			}
 			path = path.AppendKey(keys[i], enc)
 		}
 
 		res, err := KeyPathToKeys(path.String())
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.Equal(t, len(keys), len(res))
 
 		for i, key := range keys {

crypto/merkle/proof_test.go

@@ -79,58 +79,58 @@ func TestProofOperators(t *testing.T) {
 	// Good
 	popz := ProofOperators([]ProofOperator{op1, op2, op3, op4})
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 	err = popz.VerifyValue(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", bz("INPUT1"))
-	assert.Nil(t, err)
+	assert.NoError(t, err)
 
 	// BAD INPUT
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1_WRONG")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 	err = popz.VerifyValue(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", bz("INPUT1_WRONG"))
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD KEY 1
 	err = popz.Verify(bz("OUTPUT4"), "/KEY3/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD KEY 2
 	err = popz.Verify(bz("OUTPUT4"), "KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD KEY 3
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1/", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD KEY 4
 	err = popz.Verify(bz("OUTPUT4"), "//KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD KEY 5
 	err = popz.Verify(bz("OUTPUT4"), "/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD OUTPUT 1
 	err = popz.Verify(bz("OUTPUT4_WRONG"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD OUTPUT 2
 	err = popz.Verify(bz(""), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD POPZ 1
 	popz = []ProofOperator{op1, op2, op4}
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD POPZ 2
 	popz = []ProofOperator{op4, op3, op2, op1}
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 
 	// BAD POPZ 3
 	popz = []ProofOperator{}
 	err = popz.Verify(bz("OUTPUT4"), "/KEY4/KEY2/KEY1", [][]byte{bz("INPUT1")})
-	assert.NotNil(t, err)
+	assert.Error(t, err)
 }
 
 func bz(s string) []byte {

crypto/secp256k1/secp256k1.go

@@ -10,7 +10,7 @@ import (
 
 	secp256k1 "github.com/btcsuite/btcd/btcec"
 	"github.com/tendermint/tendermint/crypto"
-	tmjson "github.com/tendermint/tendermint/libs/json"
+	"github.com/tendermint/tendermint/internal/jsontypes"
 
 	// necessary for Bitcoin address format
 	"golang.org/x/crypto/ripemd160" // nolint
@@ -26,8 +26,8 @@ const (
 )
 
 func init() {
-	tmjson.RegisterType(PubKey{}, PubKeyName)
-	tmjson.RegisterType(PrivKey{}, PrivKeyName)
+	jsontypes.MustRegister(PubKey{})
+	jsontypes.MustRegister(PrivKey{})
 }
 
 var _ crypto.PrivKey = PrivKey{}
@@ -35,6 +35,9 @@ var _ crypto.PrivKey = PrivKey{}
 // PrivKey implements PrivKey.
 type PrivKey []byte
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PrivKey) TypeTag() string { return PrivKeyName }
+
 // Bytes marshalls the private key using amino encoding.
 func (privKey PrivKey) Bytes() []byte {
 	return []byte(privKey)
@@ -138,6 +141,9 @@ const PubKeySize = 33
 // This prefix is followed with the x-coordinate.
 type PubKey []byte
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PubKey) TypeTag() string { return PubKeyName }
+
 // Address returns a Bitcoin style addresses: RIPEMD160(SHA256(pubkey))
 func (pubKey PubKey) Address() crypto.Address {
 	if len(pubKey) != PubKeySize {

crypto/secp256k1/secp256k1_test.go

@@ -52,7 +52,7 @@ func TestSignAndValidateSecp256k1(t *testing.T) {
 
 	msg := crypto.CRandBytes(128)
 	sig, err := privKey.Sign(msg)
-	require.Nil(t, err)
+	require.NoError(t, err)
 
 	assert.True(t, pubKey.VerifySignature(msg, sig))
 

crypto/sr25519/encoding.go

@@ -1,6 +1,8 @@
 package sr25519
 
-import tmjson "github.com/tendermint/tendermint/libs/json"
+import (
+	"github.com/tendermint/tendermint/internal/jsontypes"
+)
 
 const (
 	PrivKeyName = "tendermint/PrivKeySr25519"
@@ -8,6 +10,6 @@ const (
 )
 
 func init() {
-	tmjson.RegisterType(PubKey{}, PubKeyName)
-	tmjson.RegisterType(PrivKey{}, PrivKeyName)
+	jsontypes.MustRegister(PubKey{})
+	jsontypes.MustRegister(PrivKey{})
 }

crypto/sr25519/privkey.go

@@ -29,6 +29,9 @@ type PrivKey struct {
 	kp  *sr25519.KeyPair
 }
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PrivKey) TypeTag() string { return PrivKeyName }
+
 // Bytes returns the byte-encoded PrivKey.
 func (privKey PrivKey) Bytes() []byte {
 	if privKey.kp == nil {

crypto/sr25519/pubkey.go

@@ -23,6 +23,9 @@ const (
 // PubKey implements crypto.PubKey.
 type PubKey []byte
 
+// TypeTag satisfies the jsontypes.Tagged interface.
+func (PubKey) TypeTag() string { return PubKeyName }
+
 // Address is the SHA256-20 of the raw pubkey bytes.
 func (pubKey PubKey) Address() crypto.Address {
 	if len(pubKey) != PubKeySize {

crypto/sr25519/sr25519_test.go

@@ -18,7 +18,7 @@ func TestSignAndValidateSr25519(t *testing.T) {
 
 	msg := crypto.CRandBytes(128)
 	sig, err := privKey.Sign(msg)
-	require.Nil(t, err)
+	require.NoError(t, err)
 
 	// Test the signature
 	assert.True(t, pubKey.VerifySignature(msg, sig))

crypto/xchacha20poly1305/vector_test.go

@@ -1,122 +0,0 @@
-package xchacha20poly1305
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-func toHex(bits []byte) string {
-	return hex.EncodeToString(bits)
-}
-
-func fromHex(bits string) []byte {
-	b, err := hex.DecodeString(bits)
-	if err != nil {
-		panic(err)
-	}
-	return b
-}
-
-func TestHChaCha20(t *testing.T) {
-	for i, v := range hChaCha20Vectors {
-		var key [32]byte
-		var nonce [16]byte
-		copy(key[:], v.key)
-		copy(nonce[:], v.nonce)
-
-		HChaCha20(&key, &nonce, &key)
-		if !bytes.Equal(key[:], v.keystream) {
-			t.Errorf("test %d: keystream mismatch:\n \t got:  %s\n \t want: %s", i, toHex(key[:]), toHex(v.keystream))
-		}
-	}
-}
-
-var hChaCha20Vectors = []struct {
-	key, nonce, keystream []byte
-}{
-	{
-		fromHex("0000000000000000000000000000000000000000000000000000000000000000"),
-		fromHex("000000000000000000000000000000000000000000000000"),
-		fromHex("1140704c328d1d5d0e30086cdf209dbd6a43b8f41518a11cc387b669b2ee6586"),
-	},
-	{
-		fromHex("8000000000000000000000000000000000000000000000000000000000000000"),
-		fromHex("000000000000000000000000000000000000000000000000"),
-		fromHex("7d266a7fd808cae4c02a0a70dcbfbcc250dae65ce3eae7fc210f54cc8f77df86"),
-	},
-	{
-		fromHex("0000000000000000000000000000000000000000000000000000000000000001"),
-		fromHex("000000000000000000000000000000000000000000000002"),
-		fromHex("e0c77ff931bb9163a5460c02ac281c2b53d792b1c43fea817e9ad275ae546963"),
-	},
-	{
-		fromHex("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f"),
-		fromHex("000102030405060708090a0b0c0d0e0f1011121314151617"),
-		fromHex("51e3ff45a895675c4b33b46c64f4a9ace110d34df6a2ceab486372bacbd3eff6"),
-	},
-	{
-		fromHex("24f11cce8a1b3d61e441561a696c1c1b7e173d084fd4812425435a8896a013dc"),
-		fromHex("d9660c5900ae19ddad28d6e06e45fe5e"),
-		fromHex("5966b3eec3bff1189f831f06afe4d4e3be97fa9235ec8c20d08acfbbb4e851e3"),
-	},
-}
-
-func TestVectors(t *testing.T) {
-	for i, v := range vectors {
-		if len(v.plaintext) == 0 {
-			v.plaintext = make([]byte, len(v.ciphertext))
-		}
-
-		var nonce [24]byte
-		copy(nonce[:], v.nonce)
-
-		aead, err := New(v.key)
-		if err != nil {
-			t.Error(err)
-		}
-
-		dst := aead.Seal(nil, nonce[:], v.plaintext, v.ad)
-		if !bytes.Equal(dst, v.ciphertext) {
-			t.Errorf("test %d: ciphertext mismatch:\n \t got:  %s\n \t want: %s", i, toHex(dst), toHex(v.ciphertext))
-		}
-		open, err := aead.Open(nil, nonce[:], dst, v.ad)
-		if err != nil {
-			t.Error(err)
-		}
-		if !bytes.Equal(open, v.plaintext) {
-			t.Errorf("test %d: plaintext mismatch:\n \t got:  %s\n \t want: %s", i, string(open), string(v.plaintext))
-		}
-	}
-}
-
-var vectors = []struct {
-	key, nonce, ad, plaintext, ciphertext []byte
-}{
-	{
-		[]byte{
-			0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a,
-			0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95,
-			0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
-		},
-		[]byte{0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b},
-		[]byte{0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7},
-		[]byte(
-			"Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it.",
-		),
-		[]byte{
-			0x45, 0x3c, 0x06, 0x93, 0xa7, 0x40, 0x7f, 0x04, 0xff, 0x4c, 0x56,
-			0xae, 0xdb, 0x17, 0xa3, 0xc0, 0xa1, 0xaf, 0xff, 0x01, 0x17, 0x49,
-			0x30, 0xfc, 0x22, 0x28, 0x7c, 0x33, 0xdb, 0xcf, 0x0a, 0xc8, 0xb8,
-			0x9a, 0xd9, 0x29, 0x53, 0x0a, 0x1b, 0xb3, 0xab, 0x5e, 0x69, 0xf2,
-			0x4c, 0x7f, 0x60, 0x70, 0xc8, 0xf8, 0x40, 0xc9, 0xab, 0xb4, 0xf6,
-			0x9f, 0xbf, 0xc8, 0xa7, 0xff, 0x51, 0x26, 0xfa, 0xee, 0xbb, 0xb5,
-			0x58, 0x05, 0xee, 0x9c, 0x1c, 0xf2, 0xce, 0x5a, 0x57, 0x26, 0x32,
-			0x87, 0xae, 0xc5, 0x78, 0x0f, 0x04, 0xec, 0x32, 0x4c, 0x35, 0x14,
-			0x12, 0x2c, 0xfc, 0x32, 0x31, 0xfc, 0x1a, 0x8b, 0x71, 0x8a, 0x62,
-			0x86, 0x37, 0x30, 0xa2, 0x70, 0x2b, 0xb7, 0x63, 0x66, 0x11, 0x6b,
-			0xed, 0x09, 0xe0, 0xfd, 0x5c, 0x6d, 0x84, 0xb6, 0xb0, 0xc1, 0xab,
-			0xaf, 0x24, 0x9d, 0x5d, 0xd0, 0xf7, 0xf5, 0xa7, 0xea,
-		},
-	},
-}

crypto/xchacha20poly1305/xchachapoly.go

@@ -1,259 +0,0 @@
-// Package xchacha20poly1305 creates an AEAD using hchacha, chacha, and poly1305
-// This allows for randomized nonces to be used in conjunction with chacha.
-package xchacha20poly1305
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-	"errors"
-	"fmt"
-
-	"golang.org/x/crypto/chacha20poly1305"
-)
-
-// Implements crypto.AEAD
-type xchacha20poly1305 struct {
-	key [KeySize]byte
-}
-
-const (
-	// KeySize is the size of the key used by this AEAD, in bytes.
-	KeySize = 32
-	// NonceSize is the size of the nonce used with this AEAD, in bytes.
-	NonceSize = 24
-	// TagSize is the size added from poly1305
-	TagSize = 16
-	// MaxPlaintextSize is the max size that can be passed into a single call of Seal
-	MaxPlaintextSize = (1 << 38) - 64
-	// MaxCiphertextSize is the max size that can be passed into a single call of Open,
-	// this differs from plaintext size due to the tag
-	MaxCiphertextSize = (1 << 38) - 48
-
-	// sigma are constants used in xchacha.
-	// Unrolled from a slice so that they can be inlined, as slices can't be constants.
-	sigma0 = uint32(0x61707865)
-	sigma1 = uint32(0x3320646e)
-	sigma2 = uint32(0x79622d32)
-	sigma3 = uint32(0x6b206574)
-)
-
-// New returns a new xchachapoly1305 AEAD
-func New(key []byte) (cipher.AEAD, error) {
-	if len(key) != KeySize {
-		return nil, errors.New("xchacha20poly1305: bad key length")
-	}
-	ret := new(xchacha20poly1305)
-	copy(ret.key[:], key)
-	return ret, nil
-}
-
-func (c *xchacha20poly1305) NonceSize() int {
-	return NonceSize
-}
-
-func (c *xchacha20poly1305) Overhead() int {
-	return TagSize
-}
-
-func (c *xchacha20poly1305) Seal(dst, nonce, plaintext, additionalData []byte) []byte {
-	if len(nonce) != NonceSize {
-		panic("xchacha20poly1305: bad nonce length passed to Seal")
-	}
-
-	if uint64(len(plaintext)) > MaxPlaintextSize {
-		panic("xchacha20poly1305: plaintext too large")
-	}
-
-	var subKey [KeySize]byte
-	var hNonce [16]byte
-	var subNonce [chacha20poly1305.NonceSize]byte
-	copy(hNonce[:], nonce[:16])
-
-	HChaCha20(&subKey, &hNonce, &c.key)
-
-	// This can't error because we always provide a correctly sized key
-	chacha20poly1305, _ := chacha20poly1305.New(subKey[:])
-
-	copy(subNonce[4:], nonce[16:])
-
-	return chacha20poly1305.Seal(dst, subNonce[:], plaintext, additionalData)
-}
-
-func (c *xchacha20poly1305) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	if len(nonce) != NonceSize {
-		return nil, fmt.Errorf("xchacha20poly1305: bad nonce length passed to Open")
-	}
-	if uint64(len(ciphertext)) > MaxCiphertextSize {
-		return nil, fmt.Errorf("xchacha20poly1305: ciphertext too large")
-	}
-	var subKey [KeySize]byte
-	var hNonce [16]byte
-	var subNonce [chacha20poly1305.NonceSize]byte
-	copy(hNonce[:], nonce[:16])
-
-	HChaCha20(&subKey, &hNonce, &c.key)
-
-	// This can't error because we always provide a correctly sized key
-	chacha20poly1305, _ := chacha20poly1305.New(subKey[:])
-
-	copy(subNonce[4:], nonce[16:])
-
-	return chacha20poly1305.Open(dst, subNonce[:], ciphertext, additionalData)
-}
-
-// HChaCha exported from
-// https://github.com/aead/chacha20/blob/8b13a72661dae6e9e5dea04f344f0dc95ea29547/chacha/chacha_generic.go#L194
-// TODO: Add support for the different assembly instructions used there.
-
-// The MIT License (MIT)
-
-// Copyright (c) 2016 Andreas Auernhammer
-
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-// HChaCha20 generates 32 pseudo-random bytes from a 128 bit nonce and a 256 bit secret key.
-// It can be used as a key-derivation-function (KDF).
-func HChaCha20(out *[32]byte, nonce *[16]byte, key *[32]byte) { hChaCha20Generic(out, nonce, key) }
-
-func hChaCha20Generic(out *[32]byte, nonce *[16]byte, key *[32]byte) {
-	v00 := sigma0
-	v01 := sigma1
-	v02 := sigma2
-	v03 := sigma3
-	v04 := binary.LittleEndian.Uint32(key[0:])
-	v05 := binary.LittleEndian.Uint32(key[4:])
-	v06 := binary.LittleEndian.Uint32(key[8:])
-	v07 := binary.LittleEndian.Uint32(key[12:])
-	v08 := binary.LittleEndian.Uint32(key[16:])
-	v09 := binary.LittleEndian.Uint32(key[20:])
-	v10 := binary.LittleEndian.Uint32(key[24:])
-	v11 := binary.LittleEndian.Uint32(key[28:])
-	v12 := binary.LittleEndian.Uint32(nonce[0:])
-	v13 := binary.LittleEndian.Uint32(nonce[4:])
-	v14 := binary.LittleEndian.Uint32(nonce[8:])
-	v15 := binary.LittleEndian.Uint32(nonce[12:])
-
-	for i := 0; i < 20; i += 2 {
-		v00 += v04
-		v12 ^= v00
-		v12 = (v12 << 16) | (v12 >> 16)
-		v08 += v12
-		v04 ^= v08
-		v04 = (v04 << 12) | (v04 >> 20)
-		v00 += v04
-		v12 ^= v00
-		v12 = (v12 << 8) | (v12 >> 24)
-		v08 += v12
-		v04 ^= v08
-		v04 = (v04 << 7) | (v04 >> 25)
-		v01 += v05
-		v13 ^= v01
-		v13 = (v13 << 16) | (v13 >> 16)
-		v09 += v13
-		v05 ^= v09
-		v05 = (v05 << 12) | (v05 >> 20)
-		v01 += v05
-		v13 ^= v01
-		v13 = (v13 << 8) | (v13 >> 24)
-		v09 += v13
-		v05 ^= v09
-		v05 = (v05 << 7) | (v05 >> 25)
-		v02 += v06
-		v14 ^= v02
-		v14 = (v14 << 16) | (v14 >> 16)
-		v10 += v14
-		v06 ^= v10
-		v06 = (v06 << 12) | (v06 >> 20)
-		v02 += v06
-		v14 ^= v02
-		v14 = (v14 << 8) | (v14 >> 24)
-		v10 += v14
-		v06 ^= v10
-		v06 = (v06 << 7) | (v06 >> 25)
-		v03 += v07
-		v15 ^= v03
-		v15 = (v15 << 16) | (v15 >> 16)
-		v11 += v15
-		v07 ^= v11
-		v07 = (v07 << 12) | (v07 >> 20)
-		v03 += v07
-		v15 ^= v03
-		v15 = (v15 << 8) | (v15 >> 24)
-		v11 += v15
-		v07 ^= v11
-		v07 = (v07 << 7) | (v07 >> 25)
-		v00 += v05
-		v15 ^= v00
-		v15 = (v15 << 16) | (v15 >> 16)
-		v10 += v15
-		v05 ^= v10
-		v05 = (v05 << 12) | (v05 >> 20)
-		v00 += v05
-		v15 ^= v00
-		v15 = (v15 << 8) | (v15 >> 24)
-		v10 += v15
-		v05 ^= v10
-		v05 = (v05 << 7) | (v05 >> 25)
-		v01 += v06
-		v12 ^= v01
-		v12 = (v12 << 16) | (v12 >> 16)
-		v11 += v12
-		v06 ^= v11
-		v06 = (v06 << 12) | (v06 >> 20)
-		v01 += v06
-		v12 ^= v01
-		v12 = (v12 << 8) | (v12 >> 24)
-		v11 += v12
-		v06 ^= v11
-		v06 = (v06 << 7) | (v06 >> 25)
-		v02 += v07
-		v13 ^= v02
-		v13 = (v13 << 16) | (v13 >> 16)
-		v08 += v13
-		v07 ^= v08
-		v07 = (v07 << 12) | (v07 >> 20)
-		v02 += v07
-		v13 ^= v02
-		v13 = (v13 << 8) | (v13 >> 24)
-		v08 += v13
-		v07 ^= v08
-		v07 = (v07 << 7) | (v07 >> 25)
-		v03 += v04
-		v14 ^= v03
-		v14 = (v14 << 16) | (v14 >> 16)
-		v09 += v14
-		v04 ^= v09
-		v04 = (v04 << 12) | (v04 >> 20)
-		v03 += v04
-		v14 ^= v03
-		v14 = (v14 << 8) | (v14 >> 24)
-		v09 += v14
-		v04 ^= v09
-		v04 = (v04 << 7) | (v04 >> 25)
-	}
-
-	binary.LittleEndian.PutUint32(out[0:], v00)
-	binary.LittleEndian.PutUint32(out[4:], v01)
-	binary.LittleEndian.PutUint32(out[8:], v02)
-	binary.LittleEndian.PutUint32(out[12:], v03)
-	binary.LittleEndian.PutUint32(out[16:], v12)
-	binary.LittleEndian.PutUint32(out[20:], v13)
-	binary.LittleEndian.PutUint32(out[24:], v14)
-	binary.LittleEndian.PutUint32(out[28:], v15)
-}

crypto/xchacha20poly1305/xchachapoly_test.go

@@ -1,113 +0,0 @@
-package xchacha20poly1305
-
-import (
-	"bytes"
-	crand "crypto/rand"
-	mrand "math/rand"
-	"testing"
-)
-
-// The following test is taken from
-// https://github.com/golang/crypto/blob/master/chacha20poly1305/chacha20poly1305_test.go#L69
-// It requires the below copyright notice, where "this source code" refers to the following function.
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found at the bottom of this file.
-func TestRandom(t *testing.T) {
-	// Some random tests to verify Open(Seal) == Plaintext
-	for i := 0; i < 256; i++ {
-		var nonce [24]byte
-		var key [32]byte
-
-		al := mrand.Intn(128)
-		pl := mrand.Intn(16384)
-		ad := make([]byte, al)
-		plaintext := make([]byte, pl)
-		_, err := crand.Read(key[:])
-		if err != nil {
-			t.Errorf("error on read: %w", err)
-		}
-		_, err = crand.Read(nonce[:])
-		if err != nil {
-			t.Errorf("error on read: %w", err)
-		}
-		_, err = crand.Read(ad)
-		if err != nil {
-			t.Errorf("error on read: %w", err)
-		}
-		_, err = crand.Read(plaintext)
-		if err != nil {
-			t.Errorf("error on read: %w", err)
-		}
-
-		aead, err := New(key[:])
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		ct := aead.Seal(nil, nonce[:], plaintext, ad)
-
-		plaintext2, err := aead.Open(nil, nonce[:], ct, ad)
-		if err != nil {
-			t.Errorf("random #%d: Open failed", i)
-			continue
-		}
-
-		if !bytes.Equal(plaintext, plaintext2) {
-			t.Errorf("random #%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
-			continue
-		}
-
-		if len(ad) > 0 {
-			alterAdIdx := mrand.Intn(len(ad))
-			ad[alterAdIdx] ^= 0x80
-			if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-				t.Errorf("random #%d: Open was successful after altering additional data", i)
-			}
-			ad[alterAdIdx] ^= 0x80
-		}
-
-		alterNonceIdx := mrand.Intn(aead.NonceSize())
-		nonce[alterNonceIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-			t.Errorf("random #%d: Open was successful after altering nonce", i)
-		}
-		nonce[alterNonceIdx] ^= 0x80
-
-		alterCtIdx := mrand.Intn(len(ct))
-		ct[alterCtIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-			t.Errorf("random #%d: Open was successful after altering ciphertext", i)
-		}
-		ct[alterCtIdx] ^= 0x80
-	}
-}
-
-// AFOREMENTIONED LICENSE
-// Copyright (c) 2009 The Go Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

crypto/xsalsa20symmetric/symmetric.go

@@ -1,54 +0,0 @@
-package xsalsa20symmetric
-
-import (
-	"errors"
-	"fmt"
-
-	"golang.org/x/crypto/nacl/secretbox"
-
-	"github.com/tendermint/tendermint/crypto"
-)
-
-// TODO, make this into a struct that implements crypto.Symmetric.
-
-const nonceLen = 24
-const secretLen = 32
-
-// secret must be 32 bytes long. Use something like Sha256(Bcrypt(passphrase))
-// The ciphertext is (secretbox.Overhead + 24) bytes longer than the plaintext.
-func EncryptSymmetric(plaintext []byte, secret []byte) (ciphertext []byte) {
-	if len(secret) != secretLen {
-		panic(fmt.Sprintf("Secret must be 32 bytes long, got len %v", len(secret)))
-	}
-	nonce := crypto.CRandBytes(nonceLen)
-	nonceArr := [nonceLen]byte{}
-	copy(nonceArr[:], nonce)
-	secretArr := [secretLen]byte{}
-	copy(secretArr[:], secret)
-	ciphertext = make([]byte, nonceLen+secretbox.Overhead+len(plaintext))
-	copy(ciphertext, nonce)
-	secretbox.Seal(ciphertext[nonceLen:nonceLen], plaintext, &nonceArr, &secretArr)
-	return ciphertext
-}
-
-// secret must be 32 bytes long. Use something like Sha256(Bcrypt(passphrase))
-// The ciphertext is (secretbox.Overhead + 24) bytes longer than the plaintext.
-func DecryptSymmetric(ciphertext []byte, secret []byte) (plaintext []byte, err error) {
-	if len(secret) != secretLen {
-		panic(fmt.Sprintf("Secret must be 32 bytes long, got len %v", len(secret)))
-	}
-	if len(ciphertext) <= secretbox.Overhead+nonceLen {
-		return nil, errors.New("ciphertext is too short")
-	}
-	nonce := ciphertext[:nonceLen]
-	nonceArr := [nonceLen]byte{}
-	copy(nonceArr[:], nonce)
-	secretArr := [secretLen]byte{}
-	copy(secretArr[:], secret)
-	plaintext = make([]byte, len(ciphertext)-nonceLen-secretbox.Overhead)
-	_, ok := secretbox.Open(plaintext[:0], ciphertext[nonceLen:], &nonceArr, &secretArr)
-	if !ok {
-		return nil, errors.New("ciphertext decryption failed")
-	}
-	return plaintext, nil
-}

crypto/xsalsa20symmetric/symmetric_test.go

@@ -1,40 +0,0 @@
-package xsalsa20symmetric
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"golang.org/x/crypto/bcrypt"
-
-	"github.com/tendermint/tendermint/crypto"
-)
-
-func TestSimple(t *testing.T) {
-
-	plaintext := []byte("sometext")
-	secret := []byte("somesecretoflengththirtytwo===32")
-	ciphertext := EncryptSymmetric(plaintext, secret)
-	plaintext2, err := DecryptSymmetric(ciphertext, secret)
-
-	require.Nil(t, err, "%+v", err)
-	assert.Equal(t, plaintext, plaintext2)
-}
-
-func TestSimpleWithKDF(t *testing.T) {
-
-	plaintext := []byte("sometext")
-	secretPass := []byte("somesecret")
-	secret, err := bcrypt.GenerateFromPassword(secretPass, 12)
-	if err != nil {
-		t.Error(err)
-	}
-	secret = crypto.Sha256(secret)
-
-	ciphertext := EncryptSymmetric(plaintext, secret)
-	plaintext2, err := DecryptSymmetric(ciphertext, secret)
-
-	require.Nil(t, err, "%+v", err)
-	assert.Equal(t, plaintext, plaintext2)
-}

docker-compose.yml

@@ -65,5 +65,5 @@ networks:
     ipam:
       driver: default
       config:
-      -
-        subnet: 192.167.10.0/16
+        -
+          subnet: 192.167.10.0/16

docs/app-dev/abci-cli.md

@@ -83,19 +83,19 @@ func cmdKVStore(cmd *cobra.Command, args []string) error {
     if err != nil {
         return err
     }
+
+    // Stop upon receiving SIGTERM or CTRL-C.
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer cancel()
+
     srv.SetLogger(logger.With("module", "abci-server"))
-    if err := srv.Start(); err != nil {
+    if err := srv.Start(ctx); err != nil {
         return err
     }
 
-    // Stop upon receiving SIGTERM or CTRL-C.
-    tmos.TrapSignal(logger, func() {
-        // Cleanup
-        srv.Stop()
-    })
-
-    // Run forever.
-    select {}
+    // Run until shutdown.
+<-ctx.Done()
+srv.Wait()
 }
 ```
 

docs/architecture/README.md

@@ -79,6 +79,7 @@ Note the context/background should be written in the present tense.
 - [ADR-065: Custom Event Indexing](./adr-065-custom-event-indexing.md)
 - [ADR-068: Reverse-Sync](./adr-068-reverse-sync.md)
 - [ADR-067: Mempool Refactor](./adr-067-mempool-refactor.md)
+- [ADR-075: RPC Event Subscription Interface](./adr-075-rpc-subscription.md)
 
 ### Rejected
 
@@ -101,3 +102,4 @@ Note the context/background should be written in the present tense.
 - [ADR-057: RPC](./adr-057-RPC.md)
 - [ADR-069: Node Initialization](./adr-069-flexible-node-initialization.md)
 - [ADR-071: Proposer-Based Timestamps](adr-071-proposer-based-timestamps.md)
+- [ADR-074: Migrate Timeout Parameters to Consensus Parameters](./adr-074-timeout-params.md)

docs/architecture/adr-074-timeout-params.md

@@ -0,0 +1,203 @@
+# ADR 74: Migrate Timeout Parameters to Consensus Parameters
+
+## Changelog
+
+- 03-Jan-2022: Initial draft (@williambanfield)
+- 13-Jan-2022: Updated to indicate work on upgrade path needed (@williambanfield)
+
+## Status
+
+Proposed
+
+## Context
+
+### Background
+
+Tendermint's consensus timeout parameters are currently configured locally by each validator
+in the validator's [config.toml][config-toml].
+This means that the validators on a Tendermint network may have different timeouts
+from each other. There is no reason for validators on the same network to configure
+different timeout values. Proper functioning of the Tendermint consensus algorithm
+relies on these parameters being uniform across validators.
+
+The configurable values are as follows:
+
+* `TimeoutPropose`
+	* How long the consensus algorithm waits for a proposal block before issuing a prevote.
+	* If no prevote arrives by `TimeoutPropose`, then the consensus algorithm will issue a nil prevote.
+* `TimeoutProposeDelta`
+	* How much the `TimeoutPropose` grows each round.
+* `TimeoutPrevote`
+	* How long the consensus algorithm waits after receiving +2/3 prevotes with
+	no quorum for a value before issuing a precommit for nil.
+	(See the [arXiv paper][arxiv-paper], Algorithm 1, Line 34)
+* `TimeoutPrevoteDelta`
+	* How much the `TimeoutPrevote` increases with each round.
+* `TimeoutPrecommit`
+	* How long the consensus algorithm waits after receiving +2/3 precommits that
+	do not have a quorum for a value before entering the next round. 
+	(See the [arXiv paper][arxiv-paper], Algorithm 1, Line 47)
+* `TimeoutPrecommitDelta`
+	* How much the `TimeoutPrecommit` increases with each round.
+* `TimeoutCommit`
+	* How long the consensus algorithm waits after committing a block but before starting the new height.
+	* This gives a validator a chance to receive slow precommits.
+* `SkipTimeoutCommit`
+	* Make progress as soon as the node has 100% of the precommits.
+
+
+### Overview of Change
+
+We will consolidate the timeout parameters and migrate them from the node-local 
+`config.toml` file into the network-global consensus parameters.
+
+The 8 timeout parameters will be consolidated down to 6. These will be as follows:
+
+* `TimeoutPropose`
+	* Same as current `TimeoutPropose`.
+* `TimeoutProposeDelta`
+	* Same as current `TimeoutProposeDelta`.
+* `TimeoutVote`
+	* How long validators wait for votes in both the prevote
+	 and precommit phase of the consensus algorithm. This parameter subsumes
+	 the current `TimeoutPrevote` and `TimeoutPrecommit` parameters.
+* `TimeoutVoteDelta`
+	* How much the `TimeoutVote` will grow each successive round.
+	 This parameter subsumes the current `TimeoutPrevoteDelta` and `TimeoutPrecommitDelta`
+	 parameters.
+* `TimeoutCommit`
+	* Same as current `TimeoutCommit`.
+* `EnableTimeoutCommitBypass`
+	* Same as current `SkipTimeoutCommit`, renamed for clarity.
+
+A safe default will be provided by Tendermint for each of these parameters and
+networks will be able to update the parameters as they see fit. Local updates
+to these parameters will no longer be possible; instead, the application will control
+updating the parameters. Applications using the Cosmos SDK will be automatically be
+able to change the values of these consensus parameters [via a governance proposal][cosmos-sdk-consensus-params].
+
+This change is low-risk. While parameters are locally configurable, many running chains
+do not change them from their default values. For example, initializing
+a node on Osmosis, Terra, and the Cosmos Hub using the their `init` command produces
+a `config.toml` with Tendermint's default values for these parameters.
+
+### Why this parameter consolidation?
+
+Reducing the number of parameters is good for UX. Fewer superfluous parameters makes
+running and operating a Tendermint network less confusing. 
+
+The Prevote and Precommit messages are both similar sizes, require similar amounts
+of processing so there is no strong need for them to be configured separately.
+
+The `TimeoutPropose` parameter governs how long Tendermint will wait for the proposed
+block to be gossiped. Blocks are much larger than votes and therefore tend to be
+gossiped much more slowly. It therefore makes sense to keep `TimeoutPropose` and
+the `TimeoutProposeDelta` as parameters separate from the vote timeouts.
+
+`TimeoutCommit` is used by chains to ensure that the network waits for the votes from
+slower validators before proceeding to the next height. Without this timeout, the votes
+from slower validators would consistently not be included in blocks and those validators
+would not be counted as 'up' from the chain's perspective. Being down damages a validator's
+reputation and causes potential stakers to think twice before delegating to that validator.
+
+`TimeoutCommit` also prevents the network from producing the next height as soon as validators
+on the fastest hardware with a summed voting power of +2/3 of the network's total have
+completed execution of the block. Allowing the network to proceed as soon as the fastest
++2/3 completed execution would have a cumulative effect over heights, eventually
+leaving slower validators unable to participate in consensus at all. `TimeoutCommit`
+therefore allows networks to have greater variability in hardware. Additional
+discussion of this can be found in [tendermint issue 5911][tendermint-issue-5911-comment]
+and [spec issue 359][spec-issue-359].
+
+## Alternative Approaches
+
+### Hardcode the parameters
+
+Many Tendermint networks run on similar cloud-hosted infrastructure. Therefore,
+they have similar bandwidth and machine resources. The timings for propagating votes
+and blocks are likely to be reasonably similar across networks. As a result, the
+timeout parameters are good candidates for being hardcoded. Hardcoding the timeouts
+in Tendermint would mean entirely removing these parameters from any configuration
+that could be altered by either an application or a node operator. Instead,
+Tendermint would ship with a set of timeouts and all applications using Tendermint
+would use this exact same set of values.
+
+While Tendermint nodes often run with similar bandwidth and on similar cloud-hosted
+machines, there are enough points of variability to make configuring
+consensus timeouts meaningful. Namely, Tendermint network topologies are likely to be
+very different from chain to chain. Additionally, applications may vary greatly in 
+how long the `Commit` phase may take. Applications that perform more work during `Commit`
+require a longer `TimeoutCommit` to allow the application to complete its work
+and be prepared for the next height.
+
+## Decision
+
+The decision has been made to implement this work, with the caveat that the
+specific mechanism for introducing the new parameters to chains is still ongoing.
+
+## Detailed Design
+
+### New Consensus Parameters
+
+A new `TimeoutParams` `message` will be added to the [params.proto file][consensus-params-proto].
+This message will have the following form:
+
+```proto
+message TimeoutParams {
+ google.protobuf.Duration propose = 1;
+ google.protobuf.Duration propose_delta = 2;
+ google.protobuf.Duration vote = 3;
+ google.protobuf.Duration vote_delta = 4;
+ google.protobuf.Duration commit = 5;
+ bool enable_commit_timeout_bypass = 6;
+}
+```
+
+This new message will be added as a field into the [`ConsensusParams`
+message][consensus-params-proto]. The same default values that are [currently
+set for these parameters][current-timeout-defaults] in the local configuration
+file will be used as the defaults for these new consensus parameters in the
+[consensus parameter defaults][default-consensus-params].
+
+The new consensus parameters will be subject to the same
+[validity rules][time-param-validation] as the current configuration values,
+namely, each value must be non-negative.
+
+### Migration
+
+The new `ConsensusParameters` will be added during an upcoming release. In this
+release, the old `config.toml` parameters will cease to control the timeouts and 
+an error will be logged on nodes that continue to specify these values. The specific
+mechanism by which these parameters will added to a chain is being discussed in 
+[RFC-009][rfc-009] and will be decided ahead of the next release. 
+
+The specific mechanism for adding these parameters depends on work related to
+[soft upgrades][soft-upgrades], which is still ongoing.
+
+## Consequences
+
+### Positive
+
+* Timeout parameters will be equal across all of the validators in a Tendermint network.
+* Remove superfluous timeout parameters.
+
+### Negative
+
+### Neutral
+
+* Timeout parameters require consensus to change.
+
+## References
+
+[conseusus-params-proto]: https://github.com/tendermint/spec/blob/a00de7199f5558cdd6245bbbcd1d8405ccfb8129/proto/tendermint/types/params.proto#L11
+[hashed-params]: https://github.com/tendermint/tendermint/blob/7cdf560173dee6773b80d1c574a06489d4c394fe/types/params.go#L49
+[default-consensus-params]: https://github.com/tendermint/tendermint/blob/7cdf560173dee6773b80d1c574a06489d4c394fe/types/params.go#L79
+[current-timeout-defaults]: https://github.com/tendermint/tendermint/blob/7cdf560173dee6773b80d1c574a06489d4c394fe/config/config.go#L955
+[config-toml]: https://github.com/tendermint/tendermint/blob/5cc980698a3402afce76b26693ab54b8f67f038b/config/toml.go#L425-L440
+[cosmos-sdk-consensus-params]: https://github.com/cosmos/cosmos-sdk/issues/6197
+[time-param-validation]: https://github.com/tendermint/tendermint/blob/7cdf560173dee6773b80d1c574a06489d4c394fe/config/config.go#L1038
+[tendermint-issue-5911-comment]: https://github.com/tendermint/tendermint/issues/5911#issuecomment-973560381
+[spec-issue-359]: https://github.com/tendermint/spec/issues/359
+[arxiv-paper]: https://arxiv.org/pdf/1807.04938.pdf
+[soft-upgrades]: https://github.com/tendermint/spec/pull/222
+[rfc-009]: https://github.com/tendermint/tendermint/pull/7524

docs/architecture/adr-075-rpc-subscription.md

@@ -0,0 +1,684 @@
+# ADR 075: RPC Event Subscription Interface
+
+## Changelog
+
+- 26-Jan-2022: Marked accepted.
+- 22-Jan-2022: Updated and expanded (@creachadair).
+- 20-Nov-2021: Initial draft (@creachadair).
+
+---
+## Status
+
+Accepted
+
+---
+## Background & Context
+
+For context, see [RFC 006: Event Subscription][rfc006].
+
+The [Tendermint RPC service][rpc-service] permits clients to subscribe to the
+event stream generated by a consensus node. This allows clients to observe the
+state of the consensus network, including details of the consensus algorithm
+state machine, proposals, transaction delivery, and block completion. The
+application may also attach custom key-value attributes to events to expose
+application-specific details to clients.
+
+The event subscription API in the RPC service currently comprises three methods:
+
+1. `subscribe`: A request to subscribe to the events matching a specific
+   [query expression][query-grammar]. Events can be filtered by their key-value
+   attributes, including custom attributes provided by the application.
+
+2. `unsubscribe`: A request to cancel an existing subscription based on its
+   query expression.
+
+3. `unsubscribe_all`: A request to cancel all existing subscriptions belonging
+   to the client.
+
+There are some important technical and UX issues with the current RPC event
+subscription API. The rest of this ADR outlines these problems in detail, and
+proposes a new API scheme intended to address them.
+
+### Issue 1: Persistent connections
+
+To subscribe to a node's event stream, a client needs a persistent connection
+to the node.  Unlike the other methods of the service, for which each call is
+serviced by a short-lived HTTP round trip, subscription delivers a continuous
+stream of events to the client by hijacking the HTTP channel for a websocket.
+The stream (and hence the HTTP request) persists until either the subscription
+is explicitly cancelled, or the connection is closed.
+
+There are several problems with this API:
+
+1. **Expensive per-connection state**: The server must maintain a substantial
+   amount of state per subscriber client:
+
+   - The current implementation uses a [WebSocket][ws] for each active
+     subscriber. The connection must be maintained even if there are no
+     matching events for a given client.
+
+     The server can drop idle connections to save resources, but doing so
+     terminates all subscriptions on those connections and forces those clients
+     to re-connect, adding additional resource churn for the server.
+
+   - In addition, the server maintains a separate buffer of undelivered events
+     for each client.  This is to reduce the dual risks that a client will miss
+     events, and that a slow client could "push back" on the publisher,
+     impeding the progress of consensus.
+
+     Because event traffic is quite bursty, queues can potentially take up a
+     lot of memory. Moreover, each subscriber may have a different filter
+     query, so the server winds up having to duplicate the same events among
+     multiple subscriber queues. Not only does this add memory pressure, but it
+     does so most at the worst possible time, i.e., when the server is already
+     under load from high event traffic.
+
+2. **Operational access control is difficult**: The server's websocket
+   interface exposes _all_ the RPC service endpoints, not only the subscription
+   methods.  This includes methods that allow callers to inject arbitrary
+   transactions (`broadcast_tx_*`) and evidence (`broadcast_evidence`) into the
+   network, remove transactions (`remove_tx`), and request arbitrary amounts of
+   chain state.
+
+   Filtering requests to the GET endpoint is straightforward: A reverse proxy
+   like [nginx][nginx] can easily filter methods by URL path. Filtering POST
+   requests takes a bit more work, but can be managed with a filter program
+   that speaks [FastCGI][fcgi] and parses JSON-RPC request bodies.
+
+   Filtering the websocket interface requires a dedicated proxy implementation.
+   Although nginx can [reverse-proxy websockets][rp-ws], it does not support
+   filtering websocket traffic via FastCGI. The operator would need to either
+   implement a custom [nginx extension module][ng-xm] or build and run a
+   standalone proxy that implements websocket and filters each session.  Apart
+   from the work, this also makes the system even more resource intensive, as
+   well as introducing yet another connection that could potentially time out
+   or stall on full buffers.
+
+   Even for the simple case of restricting access to only event subscription,
+   there is no easy solution currently: Once a caller has access to the
+   websocket endpoint, it has complete access to the RPC service.
+
+### Issue 2: Inconvenient client API
+
+The subscription interface has some inconvenient features for the client as
+well as the server. These include:
+
+1. **Non-standard protocol:** The RPC service is mostly [JSON-RPC 2.0][jsonrpc2],
+   but the subscription interface diverges from the standard.
+
+   In a standard JSON-RPC 2.0 call, the client initiates a request to the
+   server with a unique ID, and the server concludes the call by sending a
+   reply for that ID. The `subscribe` implementation, however, sends multiple
+   responses to the client's request:
+
+   - The client sends `subscribe` with some ID `x` and the desired query
+
+   - The server responds with ID `x` and an empty confirmation response.
+
+   - The server then (repeatedly) sends event result responses with ID `x`, one
+     for each item with a matching event.
+
+   Standard JSON-RPC clients will reject the subsequent replies, as they
+   announce a request ID (`x`) that is already complete. This means a caller
+   has to implement Tendermint-specific handling for these responses.
+
+   Moreover, the result format is different between the initial confirmation
+   and the subsequent responses.  This means a caller has to implement special
+   logic for decoding the first response versus the subsequent ones.
+
+2. **No way to detect data loss:** The subscriber connection can be terminated
+   for many reasons. Even ignoring ordinary network issues (e.g., packet loss):
+
+   - The server will drop messages and/or close the websocket if its write
+     buffer fills, or if the queue of undelivered matching events is not
+     drained fast enough. The client has no way to discover that messages were
+     dropped even if the connection remains open.
+
+   - Either the client or the server may close the websocket if the websocket
+     PING and PONG exchanges are not handled correctly, or frequently enough.
+     Even if correctly implemented, this may fail if the system is under high
+     load and cannot service those control messages in a timely manner.
+
+   When the connection is terminated, the server drops all the subscriptions
+   for that client (as if it had called `unsubscribe_all`). Even if the client
+   reconnects, any events that were published during the period between the
+   disconnect and re-connect and re-subscription will be silently lost, and the
+   client has no way to discover that it missed some relevant messages.
+
+3. **No way to replay old events:** Even if a client knew it had missed some
+   events (due to a disconnection, for example), the API provides no way for
+   the client to "play back" events it may have missed.
+
+4. **Large response sizes:** Some event data can be quite large, and there can
+   be substantial duplication across items. The API allows the client to select
+   _which_ events are reported, but has no way to control which parts of a
+   matching event it wishes to receive.
+
+   This can be costly on the server (which has to marshal those data into
+   JSON), the network, and the client (which has to unmarshal the result and
+   then pick through for the components that are relevant to it).
+
+   Besides being inefficient, this also contributes to some of the persistent
+   connection issues mentioned above, e.g., filling up the websocket write
+   buffer and forcing the server to queue potentially several copies of a large
+   value in memory.
+
+5. **Client identity is tied to network address:** The Tendermint event API
+   identifies each subscriber by a (Client ID, Query) pair. In the RPC service,
+   the query is provided by the client, but the client ID is set to the TCP
+   address of the client (typically "host:port" or "ip:port").
+
+   This means that even if the server did _not_ drop subscriptions immediately
+   when the websocket connection is closed, a client may not be able to
+   reattach to its existing subscription.  Dialing a new connection is likely
+   to result in a different port (and, depending on their own proxy setup,
+   possibly a different public IP).
+
+   In isolation, this problem would be easy to work around with a new
+   subscription parameter, but it would require several other changes to the
+   handling of event subscriptions for that workaround to become useful.
+
+---
+## Decision
+
+(pending)
+
+To address the described problems, we will:
+
+1. Introduce a new API for event subscription to the Tendermint RPC service.
+   The proposed API is described in [Detailed Design](#detailed-design) below.
+
+2. This new API will target the Tendermint v0.36 release, during which the
+   current ("streaming") API will remain available as-is, but deprecated.
+
+3. The streaming API will be entirely removed in release v0.37, which will
+   require all users of event subscription to switch to the new API.
+
+> **Point for discussion:** Given that ABCI++ and PBTS are the main priorities
+> for v0.36, it would be fine to slip the first phase of this work to v0.37.
+> Unless there is a time problem, however, the proposed design does not disrupt
+> the work on ABCI++ or PBTS, and will not increase the scope of breaking
+> changes. Therefore the plan is to begin in v0.36 and slip only if necessary.
+
+---
+## Detailed Design
+
+### Design Goals
+
+Specific goals of this design include:
+
+1. Remove the need for a persistent connection to each subscription client.
+   Subscribers should use the same HTTP request flow for event subscription
+   requests as for other RPC calls.
+
+2. The server retains minimal state (possibly none) per-subscriber.  In
+   particular:
+
+   - The server does not buffer unconsumed writes nor queue undelivered events
+     on a per-client basis.
+   - A client that stalls or goes idle does not cost the server any resources.
+   - Any event data that is buffered or stored is shared among _all_
+     subscribers, and is not duplicated per client.
+
+3. Slow clients have no impact (or minimal impact) on the rate of progress of
+   the consensus algorithm, beyond the ambient overhead of servicing individual
+   RPC requests.
+
+4. Clients can tell when they have missed events matching their subscription,
+   within some reasonable (configurable) window of time, and can "replay"
+   events within that window to catch up.
+
+5. Nice to have: It should be easy to use the event subscription API from
+   existing standard tools and libraries, including command-line use for
+   testing and experimentation.
+
+### Definitions
+
+- The **event stream** of a node is a single, time-ordered, heterogeneous
+  stream of event items.
+
+- Each **event item** comprises an **event datum** (for example, block header
+  metadata for a new-block event), and zero or more optional **events**.
+
+- An **event** means the [ABCI `Event` data type][abci-event], which comprises
+  a string type and zero or more string key-value **event attributes**.
+
+  The use of the new terms "event item" and "event datum" is to avert confusion
+  between the values that are published to the event bus (what we call here
+  "event items") and the ABCI `Event` data type.
+
+- The node assigns each event item a unique identifier string called a
+  **cursor**.  A cursor must be unique among all events published by a single
+  node, but it is not required to be unique globally across nodes.
+
+  Cursors are time-ordered so that given event items A and B, if A was
+  published before B, then cursor(A) < cursor(B) in lexicographic order.
+
+  A minimum viable cursor implementation is a tuple consisting of a timestamp
+  and a sequence number (e.g., `16CCC798FB5F4670-0123`). However, it may also
+  be useful to append basic type information to a cursor, to allow efficient
+  filtering (e.g., `16CCC87E91869050-0091:BeginBlock`).
+
+  The initial implementation will use the minimum viable format.
+
+### Discussion
+
+The node maintains an **event log**, a shared ordered record of the events
+published to its event bus within an operator-configurable time window.  The
+initial implementation will store the event log in-memory, and the operator
+will be given two per-node configuration settings.  Note, these names are
+provisional:
+
+- `[event-subscription] time-window`: A duration before present during which the
+  node will retain event items published. Setting this value to zero disables
+  event subscription.
+
+- `[event-subscription] max-items`: A maximum number of event items that the
+  node will retain within the time window. If the number of items exceeds this
+  value, the node discardes the oldest items in the window. Setting this value
+  to zero means that no limit is imposed on the number of items.
+
+The node will retain all events within the time window, provided they do not
+exceed the maximum number.  These config parameters allow the operator to
+loosely regulate how much memory and storage the node allocates to the event
+log. The client can use the server reply to tell whether the events it wants
+are still available from the event log.
+
+The event log is shared among all subscribers to the node.
+
+> **Discussion point:** Should events persist across node restarts?
+>
+> The current event API does not persist events across restarts, so this new
+> design does not either. Note, however, that we may "spill" older event data
+> to disk as a way of controlling memory use. Such usage is ephemeral, however,
+> and does not need to be tracked as node data (e.g., it could be temp files).
+
+### Query API
+
+To retrieve event data, the client will call the (new) RPC method `events`.
+The parameters of this method will correspond to the following Go types:
+
+```go
+type EventParams struct {
+    // Optional filter spec. If nil or empty, all items are eligible.
+    Filter *Filter `json:"filter"`
+
+    // The maximum number of eligible results to return.
+    // If zero or negative, the server will report a default number.
+    MaxResults int `json:"max_results"`
+
+    // Return only items after this cursor. If empty, the limit is just
+    // before the the beginning of the event log.
+    After string `json:"after_item"`
+
+    // Return only items before this cursor.  If empty, the limit is just
+    // after the head of the event log.
+    Before string `json:"before_item"`
+
+    // Wait for up to this long for events to be available.
+    WaitTime time.Duration `json:"wait_time"`
+}
+
+type Filter struct {
+    Query string `json:"query"`
+}
+```
+
+> **Discussion point:** The initial implementation will not cache filter
+> queries for the client. If this turns out to be a performance issue in
+> production, the service can keep a small shared cache of compiled queries.
+> Given the improvements from #7319 et seq., this should not be necessary.
+
+> **Discussion point:** For the initial implementation, the new API will use
+> the existing query language as-is. Future work may extend the Filter message
+> with a more structured and/or expressive query surface, but that is beyond
+> the scope of this design.
+
+The semantics of the request are as follows: An item in the event log is
+**eligible** for a query if:
+
+- It is newer than the `after_item` cursor (if set).
+- It is older than the `before_item` cursor (if set).
+- It matches the filter (if set).
+
+Among the eligible items in the log, the server returns up to `max_results` of
+the newest items, in reverse order of cursor. If `max_results` is unset the
+server chooses a number to return, and will cap `max_results` at a sensible
+limit.
+
+The `wait_time` parameter is used to effect polling. If `before_item` is empty,
+the server will wait for up to `wait_time` for additional items, if there are
+fewer than `max_results` eligible results in the log.  If `wait_time` is zero,
+the server will return whatever eligible items are available immediately.
+
+If `before_item` non-empty, `wait_time` is ignored: new results are only added
+to the head of the log, so there is no need to wait.  This allows the client to
+poll for new data, and "page" backward through matching event items. This is
+discussed in more detail below.
+
+The server will set a sensible cap on the maximum `wait_time`, overriding
+client-requested intervals longer than that.
+
+A successful reply from the `events` request corresponds to the following Go
+types:
+
+```go
+type EventReply struct {
+    // The items matching the request parameters, from newest
+    // to oldest, if any were available within the timeout.
+    Items []*EventItem `json:"items"`
+
+    // This is true if there is at least one older matching item
+    // available in the log that was not returned.
+    More bool `json:"more"`
+
+    // The cursor of the oldest item in the log at the time of this reply,
+    // or "" if the log is empty.
+    Oldest string `json:"oldest_item"`
+
+    // The cursor of the newest item in the log at the time of this reply,
+    // or "" if the log is empty.
+    Newest string `json:"newest_item"`
+}
+
+type EventItem struct {
+    // The cursor of this item.
+    Cursor string `json:"cursor"`
+
+    // The encoded event data for this item.
+    // The type identifies the structure of the value.
+    Data struct {
+        Type  string          `json:"type"`
+        Value json.RawMessage `json:"value"`
+    } `json:"data"`
+}
+```
+
+The `oldest_item` and `newest_item` fields of the reply report the cursors of
+the oldest and newest items (of any kind) recorded in the event log at the time
+of the reply, or are `""` if the log is empty.
+
+The `data` field contains the type-specific event datum, and `events` contain
+the ABCI events, if any were defined.
+
+> **Discussion point**: Based on [issue #7273][i7273], I did not include a
+> separate field in the response for the ABCI events, since it duplicates data
+> already stored elsewhere in the event data.
+
+The semantics of the reply are as follows:
+
+- If `items` is non-empty:
+
+    - Items are ordered from newest to oldest.
+
+    - If `more` is true, there is at least one additional, older item in the
+      event log that was not returned (in excess of `max_results`).
+
+      In this case the client can fetch the next page by setting `before_item`
+      in a new request, to the cursor of the oldest item fetched (i.e., the
+      last one in `items`).
+
+    - Otherwise (if `more` is false), all the matching results have been
+      reported (pagination is complete).
+
+    - The first element of `items` identifies the newest item considered.
+      Subsequent poll requests can set `after_item` to this cursor to skip
+      items that were already retrieved.
+
+- If `items` is empty:
+
+    - If the `before_item` was set in the request, there are no further
+      eligible items for this query in the log (pagination is complete).
+
+      This is just a safety case; the client can detect this without issuing
+      another call by consulting the `more` field of the previous reply.
+
+    - If the `before_item` was empty in the request, no eligible items were
+      available before the `wait_time` expired. The client may poll again to
+      wait for more event items.
+
+A client can store cursor values to detect data loss and to recover from
+crashes and connectivity issues:
+
+- After a crash, the client requests events after the newest cursor it has
+  seen.  If the reply indicates that cursor is no longer in range, the client
+  may (conservatively) conclude some event data may have been lost.
+
+- On the other hand, if it _is_ in range, the client can then page back through
+  the results that it missed, and then resume polling. As long as its recovery
+  cursor does not age out before it finishes, the client can be sure it has all
+  the relevant results.
+
+### Other Notes
+
+- The new API supports two general "modes" of operation:
+
+  1. In ordinary operation, clients will **long-poll** the head of the event
+     log for new events matching their criteria (by setting a `wait_time` and
+     no `before_item`).
+
+  2. If there are more events than the client requested, or if the client needs
+     to to read older events to recover from a stall or crash , clients will
+     **page** backward through the event log (by setting `before_item` and
+     possibly `after_item`).
+
+- While the new API requires explicit polling by the client, it makes better
+  use of the node's existing HTTP infrastructure (e.g., connection pools).
+  Moreover, the direct implementation is easier to use from standard tools and
+  client libraries for HTTP and JSON-RPC.
+
+  Explicit polling does shift the burden of timeliness to the client.  That is
+  arguably preferable, however, given that the RPC service is ancillary to the
+  node's primary goal, viz., consensus. The details of polling can be easily
+  hidden from client applications with simple libraries.
+
+- The format of a cursor is considered opaque to the client. Clients must not
+  parse cursor values, but they may rely on their ordering properties.
+
+- To maintain the event log, the server must prune items outside the time
+  window and in excess of the item limit.
+
+  The initial implementation will do this by checking the tail of the event log
+  after each new item is published. If the number of items in the log exceeds
+  the item limit, it will delete oldest items until the log is under the limit;
+  then discard any older than the time window before present.
+
+  To minimize coordination interference between the publisher (the event bus)
+  and the subcribers (the `events` service handlers), the event log will be
+  stored as a persistent linear queue with shared structure (a cons list).  A
+  single reader-writer mutex will guard the "head" of the queue where new
+  items are published:
+
+  - **To publish a new item**, the publisher acquires the write lock, conses a
+    new item to the front of the existing queue, and replaces the head pointer
+    with the new item.
+
+  - **To scan the queue**, a reader acquires the read lock, captures the head
+    pointer, and then releases the lock. The rest of its request can be served
+    without holding a lock, since the queue structure will not change.
+
+	When a reader wants to wait, it will yield the lock and wait on a condition
+	that is signaled when the publisher swings the pointer.
+
+  - **To prune the queue**, the publisher (who is the sole writer) will track
+    the queue length and the age of the oldest item separately.  When the
+    length and or age exceed the configured bounds, it will construct a new
+    queue spine on the same items, discarding out-of-band values.
+
+    Pruning can be done while the publisher already holds the write lock, or
+    could be done outside the lock entirely: Once the new queue is constructed,
+    the lock can be re-acquired to swing the pointer. This costs some extra
+    allocations for the cons cells, but avoids duplicating any event items.
+    The pruning step is a simple linear scan down the first (up to) max-items
+    elements of the queue, to find the breakpoint of age and length.
+
+    Moreover, the publisher can amortize the cost of pruning by item count, if
+    necessary, by pruning length "more aggressively" than the configuration
+    requires (e.g., reducing to 3/4 of the maximum rather than 1/1).
+
+    The state of the event log before the publisher acquires the lock:
+    ![Before publish and pruning](./img/adr-075-log-before.png)
+
+	After the publisher has added a new item and pruned old ones:
+    ![After publish and pruning](./img/adr-075-log-after.png)
+
+### Migration Plan
+
+This design requires that clients eventually migrate to the new event
+subscription API, but provides a full release cycle with both APIs in place to
+make this burden more tractable. The migration strategy is broadly:
+
+**Phase 1**: Release v0.36.
+
+- Implement the new `events` endpoint, keeping the existing methods as they are.
+- Update the Go clients to support the new `events` endpoint, and handle polling.
+- Update the old endpoints to log annoyingly about their own deprecation.
+- Write tutorials about how to migrate client usage.
+
+At or shortly after release, we should proactively update the Cosmos SDK to use
+the new API, to remove a disincentive to upgrading.
+
+**Phase 2**: Release v0.37
+
+- During development, we should actively seek out any existing users of the
+  streaming event subscription API and help them migrate.
+- Possibly also: Spend some time writing clients for JS, Rust, et al.
+- Release: Delete the old implementation and all the websocket support code.
+
+> **Discussion point**: Even though the plan is to keep the existing service,
+> we might take the opportunity to restrict the websocket endpoint to _only_
+> the event streaming service, removing the other endpoints. To minimize the
+> disruption for users in the v0.36 cycle, I have decided not to do this for
+> the first phase.
+>
+> If we wind up pushing this design into v0.37, however, we should re-evaulate
+> this partial turn-down of the websocket.
+
+### Future Work
+
+- This design does not immediately address the problem of allowing the client
+  to control which data are reported back for event items. That concern is
+  deferred to future work. However, it would be straightforward to extend the
+  filter and/or the request parameters to allow more control.
+
+- The node currently stores a subset of event data (specifically the block and
+  transaction events) for use in reindexing. While these data are redundant
+  with the event log described in this document, they are not sufficient to
+  cover event subscription, as they omit other event types.
+
+  In the future we should investigate consolidating or removing event data from
+  the state store entirely. For now this issue is out of scope for purposes of
+  updating the RPC API. We may be able to piggyback on the database unification
+  plans (see [RFC 001][rfc001]) to store the event log separately, so its
+  pruning policy does not need to be tied to the block and state stores.
+
+- This design reuses the existing filter query language from the old API.  In
+  the future we may want to use a more structured and/or expressive query.  The
+  Filter object can be extended with more fields as needed to support this.
+
+- Some users have trouble communicating with the RPC service because of
+  configuration problems like improperly-set CORS policies. While this design
+  does not address those issues directly, we might want to revisit how we set
+  policies in the RPC service to make it less susceptible to confusing errors
+  caused by misconfiguration.
+
+---
+## Consequences
+
+- ✅ Reduces the number of transport options for RPC.  Supports [RFC 002][rfc002].
+- ️✅ Removes the primary non-standard use of JSON-RPC.
+- ⛔️ Forces clients to migrate to a different API (eventually).
+- ↕️  API requires clients to poll, but this reduces client state on the server.
+- ↕️  We have to maintain both implementations for a whole release, but this
+  gives clients time to migrate.
+
+---
+## Alternative Approaches
+
+The following alternative approaches were considered:
+
+1. **Leave it alone.** Since existing tools mostly already work with the API as
+   it stands today, we could leave it alone and do our best to improve its
+   performance and reliability.
+
+   Based on many issues reported by users and node operators (e.g.,
+   [#3380][i3380], [#6439][i6439], [#6729][i6729], [#7247][i7247]), the
+   problems described here affect even the existing use that works.  Investing
+   further incremental effort in the existing API is unlikely to address these
+   issues.
+
+2. **Design a better streaming API.** Instead of polling, we might try to
+   design a better "streaming" API for event subscription.
+
+   A significant advantage of switching away from streaming is to remove the
+   need for persistent connections between the node and subscribers.  A new
+   streaming protocol design would lose that advantage, and would still need a
+   way to let clients recover and replay.
+
+   This approach might look better if we decided to use a different protocol
+   for event subscription, say gRPC instead of JSON-RPC. That choice, however,
+   would be just as breaking for existing clients, for marginal benefit.
+   Moreover, this option increases both the complexity and the resource cost on
+   the node implementation.
+
+   Given that resource consumption and complexity are important considerations,
+   this option was not chosen.
+
+3. **Defer to an external event broker.** We might remove the entire event
+   subscription infrastructure from the node, and define an optional interface
+   to allow the node to publish all its events to an external event broker,
+   such as Apache Kafka.
+
+   This has the advantage of greatly simplifying the node, but at a great cost
+   to the node operator: To enable event subscription in this design, the
+   operator has to stand up and maintain a separate process in communion with
+   the node, and configuration changes would have to be coordinated across
+   both.
+
+   Moreover, this approach would be highly disruptive to existing client use,
+   and migration would probably require switching to third-party libraries.
+   Despite the potential benefits for the node itself, the costs to operators
+   and clients seems too large for this to be the best option.
+
+   Publishing to an external event broker might be a worthwhile future project,
+   if there is any demand for it. That decision is out of scope for this design,
+   as it interacts with the design of the indexer as well.
+
+---
+## References
+
+- [RFC 006: Event Subscription][rfc006]
+- [Tendermint RPC service][rpc-service]
+- [Event query grammar][query-grammar]
+- [RFC 6455: The WebSocket protocol][ws]
+- [JSON-RPC 2.0 Specification][jsonrpc2]
+- [Nginx proxy server][nginx]
+   - [Proxying websockets][rp-ws]
+   - [Extension modules][ng-xm]
+- [FastCGI][fcgi]
+- [RFC 001: Storage Engines & Database Layer][rfc001]
+- [RFC 002: Interprocess Communication in Tendermint][rfc002]
+- Issues:
+   - [rpc/client: test that client resubscribes upon disconnect][i3380] (#3380)
+   - [Too high memory usage when creating many events subscriptions][i6439] (#6439)
+   - [Tendermint emits events faster than clients can pull them][i6729] (#6729)
+   - [indexer: unbuffered event subscription slow down the consensus][i7247] (#7247)
+   - [rpc: remove duplication of events when querying][i7273] (#7273)
+
+[rfc006]:        https://github.com/tendermint/tendermint/blob/master/docs/rfc/rfc-006-event-subscription.md
+[rpc-service]:   https://docs.tendermint.com/master/rpc
+[query-grammar]: https://pkg.go.dev/github.com/tendermint/tendermint@master/internal/pubsub/query/syntax
+[ws]:            https://datatracker.ietf.org/doc/html/rfc6455
+[jsonrpc2]:      https://www.jsonrpc.org/specification
+[nginx]:         https://nginx.org/en/docs/
+[fcgi]:          http://www.mit.edu/~yandros/doc/specs/fcgi-spec.html
+[rp-ws]:         https://nginx.org/en/docs/http/websocket.html
+[ng-xm]:         https://www.nginx.com/resources/wiki/extending/
+[abci-event]:    https://pkg.go.dev/github.com/tendermint/tendermint/abci/types#Event
+[rfc001]:        https://github.com/tendermint/tendermint/blob/master/docs/rfc/rfc-001-storage-engine.rst
+[rfc002]:        https://github.com/tendermint/tendermint/blob/master/docs/rfc/rfc-002-ipc-ecosystem.md
+[i3380]:         https://github.com/tendermint/tendermint/issues/3380
+[i6439]:         https://github.com/tendermint/tendermint/issues/6439
+[i6729]:         https://github.com/tendermint/tendermint/issues/6729
+[i7247]:         https://github.com/tendermint/tendermint/issues/7247
+[i7273]:         https://github.com/tendermint/tendermint/issues/7273

docs/introduction/architecture.md

@@ -61,7 +61,7 @@ Here are some relevant facts about TCP:
 
 ![tcp](../imgs/tcp-window.png)
 
-In order to have performant TCP connections under the conditions  created in Tendermint, we've created the `mconnection`, or the multiplexing connection. It is our own protocol built on top of TCP. It lets us reuse TCP connections to minimize overhead, and it keeps the window size high by sending auxiliary messages when necessary.
+In order to have performant TCP connections under the conditions created in Tendermint, we've created the `mconnection`, or the multiplexing connection. It is our own protocol built on top of TCP. It lets us reuse TCP connections to minimize overhead, and it keeps the window size high by sending auxiliary messages when necessary.
 
 The `mconnection` is represented by a struct, which contains a batch of messages, read and write buffers, and a map of channel IDs to reactors. It communicates with TCP via file descriptors, which it can write to. There is one `mconnection` per peer connection.
 

docs/package.json

@@ -4,7 +4,7 @@
   "description": "Tendermint Core Documentation",
   "main": "index.js",
   "dependencies": {
-    "vuepress-theme-cosmos": "^1.0.182"
+    "vuepress-theme-cosmos": "^1.0.183"
   },
   "devDependencies": {
     "watchpack": "^2.3.1"

docs/rfc/README.md

@@ -44,5 +44,7 @@ sections.
 - [RFC-004: E2E Test Framework Enhancements](./rfc-004-e2e-framework.md)
 - [RFC-005: Event System](./rfc-005-event-system.rst)
 - [RFC-006: Event Subscription](./rfc-006-event-subscription.md)
+- [RFC-007: Deterministic Proto Byte Serialization](./rfc-007-deterministic-proto-bytes.md)
+- [RFC-008: Don't Panic](./rfc-008-don't-panic.md)
 
 <!-- - [RFC-NNN: Title](./rfc-NNN-title.md) -->

docs/rfc/rfc-007-deterministic-proto-bytes.md

@@ -0,0 +1,140 @@
+# RFC 007 : Deterministic Proto Byte Serialization
+
+## Changelog
+
+- 09-Dec-2021: Initial draft (@williambanfield).
+
+## Abstract
+
+This document discusses the issue of stable byte-representation of serialized messages
+within Tendermint and describes a few possible routes that could be taken to address it.
+
+## Background
+
+We use the byte representations of wire-format proto messages to produce
+and verify hashes of data within the Tendermint codebase as well as for
+producing and verifying cryptographic signatures over these signed bytes.
+
+The protocol buffer [encoding spec][proto-spec-encoding] does not guarantee that the byte representation
+of a protocol buffer message will be the same between two calls to an encoder.
+While there is a mode to force the encoder to produce the same byte representation
+of messages within a single binary, these guarantees are not good enough for our
+use case in Tendermint. We require multiple different versions of a binary running
+Tendermint to be able to inter-operate. Additionally, we require that multiple different
+systems written in _different languages_ be able to participate in different aspects
+of the protocols of Tendermint and be able to verify the integrity of the messages
+they each produce.
+
+While this has not yet created a problem that we know of in a running network, we should
+make sure to provide stronger guarantees around the serialized representation of the messages
+used within the Tendermint consensus algorithm to prevent any issue from occurring.
+
+
+## Discussion
+
+Proto has the following points of variability that can produce non-deterministic byte representation:
+
+1. Encoding order of fields within a message.
+
+Proto allows fields to be encoded in any order and even be repeated.
+
+2. Encoding order of elements of a repeated field.
+
+`repeated` fields in a proto message can be serialized in any order.
+
+3. Presence or absence of default values.
+
+Types in proto have defined default values similar to Go's zero values. 
+Writing or omitting a default value are both legal ways of encoding a wire message.
+
+4. Serialization of 'unknown' fields. 
+
+Unknown fields can be present when a message is created by a binary with a newer 
+version of the proto that contains fields that the deserializer in a different 
+binary does not yet know about. Deserializers in binaries that do not know about the field
+will maintain the bytes of the unknown field but not place them into the deserialized structure.
+
+We have a few options to consider when producing this stable representation.
+
+### Options for deterministic byte representation
+
+#### Use only compliant serializers and constrain field usage
+
+According to [Cosmos-SDK ADR-27][cosmos-sdk-adr-27], when message types obey a simple 
+set of rules, gogoproto produces a consistent byte representation of serialized messages.
+This seems promising, although more research is needed to guarantee gogoproto always
+produces a consistent set of bytes on serialized messages. This would solve the problem 
+within Tendermint as written in Go, but would require ensuring that there are similar
+serializers written in other languages that produce the same output as gogoproto.
+
+#### Reorder serialized bytes to ensure determinism.
+
+The serialized form of a proto message can be transformed into a canonical representation
+by applying simple rules to the serialized bytes. Re-ordering the serialized bytes
+would allow Tendermint to produce a canonical byte representation without having to
+simultaneously maintain a custom proto marshaller.
+
+This could be implemented as a function in many languages that performed the following 
+producing bytes to sign or hashing:
+
+1. Does not add any of the data from unknown fields into the type to hash.
+
+Tendermint should not run into a case where it needs to verify the integrity of 
+data with unknown fields for the following reasons:
+
+The purpose of checking hash equality within Tendermint is to ensure that
+its local copy of data matches the data that the network agreed on. There should
+therefore not be a case where a process is checking hash equality using data that it did not expect
+to receive. What the data represent may be opaque to the process, such as when checking the
+transactions in a block, _but the process will still have expected to receive this data_,
+despite not understanding what their internal structure is. It's not clear what it would
+mean to verify that a block contains data that a process does not know about.
+
+The same reasoning applies for signature verification within Tendermint. Processes
+verify that a digital signature signed over a set of bytes by locally reconstructing the 
+data structure that the digital signature signed using the process's local data.
+
+2. Reordered all message fields to be in tag-sorted order.
+
+Tag-sorting top-level fields will place all fields of the same tag in a adjacent
+to eachother within the serialized representation.
+
+3. Reordered the contents of all `repeated` fields to be in lexicographically sorted order.
+
+`repeated` fields will appear in a message as having the same tag but will contain different
+contents. Therefore, lexicographical sorting will produce a stable ordering of
+fields with the same tag.
+
+4. Deleted all default values from the byte representation.
+
+Encoders can include default values or omit them. Most encoders appear to omit them
+but we may wish to delete them just to be safe.
+
+5. Recursively performed these operations on any length-delimited subfields.
+
+Length delimited fields may contain messages, strings, or just bytes. However,
+it's not possible to know what data is being represented by such a field.
+A 'string' may happen to have the same structure as an embedded message and we cannot
+disambiguate. For this reason, we must apply these same rules to all subfields that
+may contain messages. Because we cannot know if we have totally mangled the interior 'string'
+or not, this data should never be deserialized or used for anything beyond hashing.
+
+A **prototype** implementation by @creachadair of this can be found in [the wirepb repo][wire-pb].
+This could be implemented in multiple languages more simply than ensuring that there are
+canonical proto serializers that match in each language.
+
+### Future work
+
+We should add clear documentation to the Tendermint codebase every time we
+compare hashes of proto messages or use proto serialized bytes to produces a
+digital signatures that we have been careful to ensure that the hashes are performed
+properly.
+
+### References
+
+[proto-spec-encoding]: https://developers.google.com/protocol-buffers/docs/encoding
+[spec-issue]: https://github.com/tendermint/tendermint/issues/5005
+[cosmos-sdk-adr-27]: https://github.com/cosmos/cosmos-sdk/blob/master/docs/architecture/adr-027-deterministic-protobuf-serialization.md
+[cer-proto-3]: https://github.com/regen-network/canonical-proto3
+[wire-pb]: https://github.com/creachadair/wirepb
+

docs/rfc/rfc-008-don't-panic.md

@@ -0,0 +1,139 @@
+# RFC 008: Don't Panic
+
+## Changelog
+
+- 2021-12-17: initial draft (@tychoish)
+
+## Abstract
+
+Today, the Tendermint core codebase has panics in a number of cases as
+a response to exceptional situations. These panics complicate testing,
+and might make tendermint components difficult to use as a library in
+some circumstances. This document outlines a project of converting
+panics to errors and describes the situations where its safe to
+panic.
+
+## Background
+
+Panics in Go are a great mechanism for aborting the current execution
+for truly exceptional situations (e.g. memory errors, data corruption,
+processes initialization); however, because they resemble exceptions
+in other languages, it can be easy to over use them in the
+implementation of software architectures. This certainly happened in
+the history of Tendermint, and as we embark on the project of
+stabilizing the package, we find ourselves in the right moment to
+reexamine our use of panics, and largely where panics happen in the
+code base.
+
+There are still some situations where panics are acceptable and
+desireable, but it's important that Tendermint, as a project, comes to
+consensus--perhaps in the text of this document--on the situations
+where it is acceptable to panic.
+
+### References
+
+- [Defer Panic and Recover](https://go.dev/blog/defer-panic-and-recover)
+- [Why Go gets exceptions right](https://dave.cheney.net/tag/panic)
+- [Don't panic](https://dave.cheney.net/practical-go/presentations/gophercon-singapore-2019.html#_dont_panic)
+
+## Discussion
+
+### Acceptable Panics
+
+#### Initialization
+
+It is unambiguously safe (and desireable) to panic in `init()`
+functions in response to any kind of error. These errors are caught by
+tests, and occur early enough in process initialization that they
+won't cause unexpected runtime crashes.
+
+Other code that is called early in process initialization MAY panic,
+in some situations if it's not possible to return an error or cause
+the process to abort early, although these situations should be
+vanishingly slim.
+
+#### Data Corruption
+
+If Tendermint code encounters an inconsistency that could be
+attributed to data corruption or a logical impossibility it is safer
+to panic and crash the process than continue to attempt to make
+progress in these situations.
+
+Examples including reading data out of the storage engine that
+is invalid or corrupt, or encountering an ambiguous situation where
+the process should halt. Generally these forms of corruption are
+detected after interacting with a trusted but external data source,
+and reflect situations where the author thinks its safer to terminate
+the process immediately rather than allow execution to continue.
+
+#### Unrecoverable Consensus Failure
+
+In general, a panic should be used in the case of unrecoverable
+consensus failures. If a process detects that the network is
+behaving in an incoherent way and it does not have a clearly defined
+and mechanism for recovering, the process should panic.
+
+#### Static Validity
+
+It is acceptable to panic for invariant violations, within a library
+or package, in situations that should be statically impossible,
+because there is no way to make these kinds of assertions at compile
+time.
+
+For example, type-asserting `interface{}` values returned by
+`container/list` and `container/heap` (and similar), is acceptable,
+because package authors should have exclusive control of the inputs to
+these containers. Packages should not expose the ability to add
+arbitrary values to these data structures.
+
+#### Controlled Panics Within Libraries
+
+In some algorithms with highly recursive structures or very nested
+call patterns, using a panic, in combination with conditional recovery
+handlers results in more manageable code. Ultimately this is a limited
+application, and implementations that use panics internally should
+only recover conditionally, filtering out panics rather than ignoring
+or handling all panics.
+
+#### Request Handling
+
+Code that handles responses to incoming/external requests
+(e.g. `http.Handler`) should avoid panics, but practice this isn't
+totally possible, and it makes sense that request handlers have some
+kind of default recovery mechanism that will prevent one request from
+terminating a service.
+
+### Unacceptable Panics
+
+In **no** other situation is it acceptable for the code to panic:
+
+- there should be **no** controlled panics that callers are required
+  to handle across library/package boundaries.
+- callers of library functions should not expect panics.
+- ensuring that arbitrary go routines can't panic.
+- ensuring that there are no arbitrary panics in core production code,
+  espically code that can run at any time during the lifetime of a
+  process.
+- all test code and fixture should report normal test assertions with
+  a mechanism like testify's `require` assertion rather than calling
+  panic directly.
+
+The goal of this increased "panic rigor" is to ensure that any escaped
+panic is reflects a fixable bug in Tendermint.
+
+### Removing Panics
+
+The process for removing panics involve a few steps, and will be part
+of an ongoing process of code modernization:
+
+- converting existing explicit panics to errors in cases where it's
+  possible to return an error, the errors can and should be handled, and returning
+  an error would not lead to data corruption or cover up data
+  corruption.
+
+- increase rigor around operations that can cause runtime errors, like
+  type assertions, nil pointer errors, array bounds access issues, and
+  either avoid these situations or return errors where possible.
+
+- remove generic panic handlers which could cover and hide known
+  panics.

docs/rfc/rfc-009-consensus-parameter-upgrades.md

@@ -0,0 +1,128 @@
+# RFC 009 : Consensus Parameter Upgrade Considerations
+
+## Changelog
+
+- 06-Jan-2011: Initial draft (@williambanfield).
+
+## Abstract
+
+This document discusses the challenges of adding additional consensus parameters
+to Tendermint and proposes a few solutions that can enable addition of consensus
+parameters in a backwards-compatible way.
+
+## Background
+
+This section provides an overview of the issues of adding consensus parameters
+to Tendermint.
+
+### Hash Compatibility
+
+Tendermint produces a hash of a subset of the consensus parameters. The values
+that are hashed currently are the `BlockMaxGas` and the `BlockMaxSize`. These
+are currently in the [HashedParams struct][hashed-params]. This hash is included
+in the block and validators use it to validate that their local view of the consensus
+parameters matches what the rest of the network is configured with.
+
+Any new consensus parameters added to Tendermint should be included in this
+hash. This presents a challenge for verification of historical blocks when consensus
+parameters are added. If a network produced blocks with a version of Tendermint that
+did not yet have the new consensus parameters, the parameter hash it produced will
+not reference the new parameters. Any nodes joining the network with the newer
+version of Tendermint will have the new consensus parameters. Tendermint will need
+to handle this case so that new versions of Tendermint with new consensus parameters
+can still validate old blocks correctly without having to do anything overly complex
+or hacky. 
+
+### Allowing Developer-Defined Values and the `EndBlock` Problem
+
+When new consensus parameters are added, application developers may wish to set
+values for them so that the developer-defined values may be used as soon as the 
+software upgrades. We do not currently have a clean mechanism for handling this.
+
+Consensus parameter updates are communicated from the application to Tendermint
+within `EndBlock` of some height `H` and take effect at the next height, `H+1`.
+This means that for updates that add a consensus parameter, there is a single
+height where the new parameters cannot take effect. The parameters did not exist
+in the version of the software that emitted the `EndBlock` response for height `H-1`,
+so they cannot take effect at height `H`. The first height that the updated params
+can take effect is height `H+1`. As of now, height `H` must run with the defaults.
+
+## Discussion
+
+### Hash Compatibility
+
+This section discusses possible solutions to the problem of maintaining backwards-compatibility 
+of hashed parameters while adding new parameters.
+
+#### Never Hash Defaults
+
+One solution to the problem of backwards-compatibility is to never include parameters
+in the hash if the are using the default value. This means that blocks produced
+before the parameters existed will have implicitly been created with the defaults.
+This works because any software with newer versions of Tendermint must be using the
+defaults for new parameters when validating old blocks since the defaults can not
+have been updated until a height at which the parameters existed.
+
+#### Only Update HashedParams on Hash-Breaking Releases
+
+An alternate solution to never hashing defaults is to not update the hashed
+parameters on non-hash-breaking releases. This means that when new consensus 
+parameters are added to Tendermint, there may be a release that makes use of the
+parameters but does not verify that they are the same across all validators by
+referencing them in the hash. This seems reasonably safe given the fact that
+only a very far subset of the consensus parameters are currently verified at all.
+
+#### Version The Consensus Parameter Hash Scheme
+
+The upcoming work on [soft upgrades](https://github.com/tendermint/spec/pull/222)
+proposes applying different hashing rules depending on the active block version.
+The consensus parameter hash could be versioned in the same way. When different
+block versions are used, a different set of consensus parameters will be included
+in the hash.
+
+### Developer Defined Values
+
+This section discusses possible solutions to the problem of allowing application
+developers to define values for the new parameters during the upgrade that adds
+the parameters.
+
+#### Using `InitChain` for New Values
+
+One solution to the problem of allowing application developers to define values
+for new consensus parameters is to call the `InitChain` ABCI method on application
+startup and fetch the value for any new consensus parameters. The [response object][init-chain-response]
+contains a field for `ConsensusParameter` updates so this may serve as a natural place
+to put this logic.
+
+This poses a few difficulties. Nodes replaying old blocks while running new
+software do not ever call `InitChain` after the initial time. They will therefore
+not have a way to determine that the parameters changed at some height by using a
+call to `InitChain`. The `EndBlock` response is how parameter changes at a height
+are currently communicated to Tendermint and conflating these cases seems risky.
+
+#### Force Defaults For Single Height
+
+An alternate option is to not use `InitChain` and instead require chains to use the
+default values of the new parameters for a single height.
+
+As documented in the upcoming [ADR-74][adr-74], popular chains often simply use the default
+values. Additionally, great care is being taken to ensure that logic governed by upcoming
+consensus parameters is not liveness-breaking. This means that, at worst-case, 
+chains will experience a single slow height while waiting for the new values to
+by applied.
+
+#### Add a new `UpgradeChain` method
+
+An additional method for allowing chains to update the consensus parameters that
+do not yet exist is to add a new `UpgradeChain` method to `ABCI`. The upgrade chain
+method would be called when the chain detects that the version of block that it
+is about to produce does not match the previous block. This method would be called
+after `EndBlock` and would return the set of consensus parameters to use at the
+next height. It would therefore give an application the chance to set the new
+consensus parameters before running a height with these new parameter.
+
+### References
+
+[hashed-params]: https://github.com/tendermint/tendermint/blob/0ae974e63911804d4a2007bd8a9b3ad81d6d2a90/types/params.go#L49
+[init-chain-response]: https://github.com/tendermint/tendermint/blob/0ae974e63911804d4a2007bd8a9b3ad81d6d2a90/abci/types/types.pb.go#L1616
+[adr-74]: https://github.com/tendermint/tendermint/pull/7503

docs/tendermint-core/README.md

@@ -18,7 +18,7 @@ This section dives into the internals of Go-Tendermint.
 - [Mempool](./mempool/README.md)
 - [Light Client](./light-client.md)
 - [Consensus](./consensus/README.md)
-- [Peer Exachange (PEX)](./pex/README.md)
+- [Peer Exchange (PEX)](./pex/README.md)
 - [Evidence](./evidence/README.md)
 
 For full specifications refer to the [spec repo](https://github.com/tendermint/spec).

go.mod

@@ -3,7 +3,7 @@ module github.com/tendermint/tendermint
 go 1.17
 
 require (
-	github.com/BurntSushi/toml v0.4.1
+	github.com/BurntSushi/toml v1.0.0
 	github.com/adlio/schema v1.2.3
 	github.com/btcsuite/btcd v0.22.0-beta
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
@@ -11,7 +11,7 @@ require (
 	github.com/go-kit/kit v0.12.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/protobuf v1.5.2
-	github.com/golangci/golangci-lint v1.43.0
+	github.com/golangci/golangci-lint v1.44.0
 	github.com/google/orderedcode v0.0.1
 	github.com/google/uuid v1.3.0
 	github.com/gorilla/websocket v1.4.2
@@ -22,21 +22,21 @@ require (
 	github.com/mroth/weightedrand v0.4.1
 	github.com/oasisprotocol/curve25519-voi v0.0.0-20210609091139-0a56a4bca00b
 	github.com/ory/dockertest v3.3.5+incompatible
-	github.com/prometheus/client_golang v1.11.0
+	github.com/prometheus/client_golang v1.12.0
 	github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0
-	github.com/rs/cors v1.8.0
-	github.com/rs/zerolog v1.26.0
-	github.com/sasha-s/go-deadlock v0.2.1-0.20190427202633-1595213edefa
+	github.com/rs/cors v1.8.2
+	github.com/rs/zerolog v1.26.1
 	github.com/snikch/goodman v0.0.0-20171125024755-10e37e294daa
-	github.com/spf13/cobra v1.2.1
-	github.com/spf13/viper v1.10.0
+	github.com/spf13/cobra v1.3.0
+	github.com/spf13/viper v1.10.1
 	github.com/stretchr/testify v1.7.0
 	github.com/tendermint/tm-db v0.6.6
-	github.com/vektra/mockery/v2 v2.9.4
-	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+	github.com/vektra/mockery/v2 v2.10.0
+	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce
 	golang.org/x/net v0.0.0-20211208012354-db4efeb81f4b
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	google.golang.org/grpc v1.42.0
+	google.golang.org/grpc v1.44.0
+	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
 	pgregory.net/rapid v0.4.7
 )
 
@@ -50,15 +50,16 @@ require (
 	github.com/Masterminds/semver v1.5.0 // indirect
 	github.com/Microsoft/go-winio v0.5.1 // indirect
 	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
-	github.com/OpenPeeDeeP/depguard v1.0.1 // indirect
+	github.com/OpenPeeDeeP/depguard v1.1.0 // indirect
 	github.com/alexkohler/prealloc v1.0.0 // indirect
-	github.com/ashanbrown/forbidigo v1.2.0 // indirect
-	github.com/ashanbrown/makezero v0.0.0-20210520155254-b6261585ddde // indirect
+	github.com/ashanbrown/forbidigo v1.3.0 // indirect
+	github.com/ashanbrown/makezero v1.1.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bkielbasa/cyclop v1.2.0 // indirect
-	github.com/blizzy78/varnamelen v0.3.0 // indirect
+	github.com/blizzy78/varnamelen v0.5.0 // indirect
 	github.com/bombsimon/wsl/v3 v3.3.0 // indirect
-	github.com/breml/bidichk v0.1.1 // indirect
+	github.com/breml/bidichk v0.2.1 // indirect
+	github.com/breml/errchkjson v0.2.1 // indirect
 	github.com/butuzov/ireturn v0.1.1 // indirect
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
 	github.com/cespare/xxhash v1.1.0 // indirect
@@ -75,7 +76,7 @@ require (
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-units v0.4.0 // indirect
 	github.com/dustin/go-humanize v1.0.0 // indirect
-	github.com/esimonov/ifshort v1.0.3 // indirect
+	github.com/esimonov/ifshort v1.0.4 // indirect
 	github.com/ettle/strcase v0.1.1 // indirect
 	github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
 	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
@@ -83,8 +84,8 @@ require (
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
 	github.com/fsnotify/fsnotify v1.5.1 // indirect
-	github.com/fzipp/gocyclo v0.3.1 // indirect
-	github.com/go-critic/go-critic v0.6.1 // indirect
+	github.com/fzipp/gocyclo v0.4.0 // indirect
+	github.com/go-critic/go-critic v0.6.2 // indirect
 	github.com/go-toolsmith/astcast v1.0.0 // indirect
 	github.com/go-toolsmith/astcopy v1.0.0 // indirect
 	github.com/go-toolsmith/astequal v1.0.1 // indirect
@@ -107,10 +108,10 @@ require (
 	github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4 // indirect
 	github.com/google/btree v1.0.0 // indirect
 	github.com/google/go-cmp v0.5.6 // indirect
-	github.com/gordonklaus/ineffassign v0.0.0-20210225214923-2e10b2664254 // indirect
+	github.com/gordonklaus/ineffassign v0.0.0-20210914165742-4cc7213b9bc8 // indirect
 	github.com/gostaticanalysis/analysisutil v0.7.1 // indirect
 	github.com/gostaticanalysis/comment v1.4.2 // indirect
-	github.com/gostaticanalysis/forcetypeassert v0.0.0-20200621232751-01d4955beaa5 // indirect
+	github.com/gostaticanalysis/forcetypeassert v0.1.0 // indirect
 	github.com/gostaticanalysis/nilerr v0.1.1 // indirect
 	github.com/hashicorp/errwrap v1.0.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
@@ -120,14 +121,15 @@ require (
 	github.com/jingyugao/rowserrcheck v1.1.1 // indirect
 	github.com/jirfag/go-printf-func-name v0.0.0-20200119135958-7558a9eaa5af // indirect
 	github.com/jmhodges/levigo v1.0.0 // indirect
-	github.com/julz/importas v0.0.0-20210419104244-841f0c0fe66d // indirect
+	github.com/julz/importas v0.1.0 // indirect
 	github.com/kisielk/errcheck v1.6.0 // indirect
 	github.com/kisielk/gotool v1.0.0 // indirect
-	github.com/kulti/thelper v0.4.0 // indirect
+	github.com/kulti/thelper v0.5.0 // indirect
 	github.com/kunwardeep/paralleltest v1.0.3 // indirect
 	github.com/kyoh86/exportloopref v0.1.8 // indirect
 	github.com/ldez/gomoddirectives v0.2.2 // indirect
-	github.com/ldez/tagliatelle v0.2.0 // indirect
+	github.com/ldez/tagliatelle v0.3.0 // indirect
+	github.com/leonklingele/grouper v1.1.0 // indirect
 	github.com/magiconair/properties v1.8.5 // indirect
 	github.com/maratori/testpackage v1.0.1 // indirect
 	github.com/matoous/godox v0.0.0-20210227103229-6504466cf951 // indirect
@@ -137,39 +139,40 @@ require (
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mbilski/exhaustivestruct v1.2.0 // indirect
 	github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517 // indirect
-	github.com/mgechev/revive v1.1.2 // indirect
+	github.com/mgechev/revive v1.1.3 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mitchellh/mapstructure v1.4.3 // indirect
 	github.com/moricho/tparallel v0.2.1 // indirect
 	github.com/nakabonne/nestif v0.3.1 // indirect
 	github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354 // indirect
-	github.com/nishanths/exhaustive v0.2.3 // indirect
+	github.com/nishanths/exhaustive v0.7.11 // indirect
 	github.com/nishanths/predeclared v0.2.1 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opencontainers/runc v1.0.3 // indirect
 	github.com/pelletier/go-toml v1.9.4 // indirect
-	github.com/petermattis/goid v0.0.0-20180202154549-b0b1615b78e5 // indirect
 	github.com/phayes/checkstyle v0.0.0-20170904204023-bfd46e6a821d // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/polyfloyd/go-errorlint v0.0.0-20210722154253-910bb7978349 // indirect
+	github.com/polyfloyd/go-errorlint v0.0.0-20211125173453-6d6d39c5bb8b // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.30.0 // indirect
+	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
-	github.com/quasilyte/go-ruleguard v0.3.13 // indirect
+	github.com/quasilyte/go-ruleguard v0.3.15 // indirect
+	github.com/quasilyte/gogrep v0.0.0-20220103110004-ffaa07af02e3 // indirect
 	github.com/quasilyte/regex/syntax v0.0.0-20200407221936-30656e2c4a95 // indirect
 	github.com/ryancurrah/gomodguard v1.2.3 // indirect
 	github.com/ryanrolds/sqlclosecheck v0.3.0 // indirect
 	github.com/sanposhiho/wastedassign/v2 v2.0.6 // indirect
-	github.com/securego/gosec/v2 v2.9.1 // indirect
+	github.com/securego/gosec/v2 v2.9.6 // indirect
 	github.com/shazow/go-diff v0.0.0-20160112020656-b6b7b6733b8c // indirect
 	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/sivchari/containedctx v1.0.1 // indirect
 	github.com/sivchari/tenv v1.4.7 // indirect
 	github.com/sonatard/noctx v0.0.1 // indirect
 	github.com/sourcegraph/go-diff v0.6.1 // indirect
-	github.com/spf13/afero v1.6.0 // indirect
+	github.com/spf13/afero v1.8.0 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
@@ -178,32 +181,33 @@ require (
 	github.com/subosito/gotenv v1.2.0 // indirect
 	github.com/sylvia7788/contextcheck v1.0.4 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20200815110645-5c35d600f0ca // indirect
-	github.com/tdakkota/asciicheck v0.0.0-20200416200610-e657995f937b // indirect
+	github.com/tdakkota/asciicheck v0.1.1 // indirect
 	github.com/tecbot/gorocksdb v0.0.0-20191217155057-f0fad39f321c // indirect
 	github.com/tetafro/godot v1.4.11 // indirect
-	github.com/timakin/bodyclose v0.0.0-20200424151742-cb6215831a94 // indirect
+	github.com/timakin/bodyclose v0.0.0-20210704033933-f49887972144 // indirect
 	github.com/tomarrell/wrapcheck/v2 v2.4.0 // indirect
-	github.com/tommy-muehle/go-mnd/v2 v2.4.0 // indirect
+	github.com/tommy-muehle/go-mnd/v2 v2.5.0 // indirect
 	github.com/ultraware/funlen v0.0.3 // indirect
 	github.com/ultraware/whitespace v0.0.4 // indirect
 	github.com/uudashr/gocognit v1.0.5 // indirect
-	github.com/yeya24/promlinter v0.1.0 // indirect
+	github.com/yagipy/maintidx v1.0.0 // indirect
+	github.com/yeya24/promlinter v0.1.1-0.20210918184747-d757024714a1 // indirect
+	gitlab.com/bosi/decorder v0.2.1 // indirect
 	go.etcd.io/bbolt v1.3.6 // indirect
-	golang.org/x/mod v0.5.0 // indirect
-	golang.org/x/sys v0.0.0-20211205182925-97ca703d548d // indirect
-	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
+	golang.org/x/mod v0.5.1 // indirect
+	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/tools v0.1.7 // indirect
+	golang.org/x/tools v0.1.9-0.20211228192929-ee1ca4ffc4da // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
-	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
-	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/ini.v1 v1.66.3 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
-	honnef.co/go/tools v0.2.1 // indirect
-	mvdan.cc/gofumpt v0.1.1 // indirect
+	honnef.co/go/tools v0.2.2 // indirect
+	mvdan.cc/gofumpt v0.2.1 // indirect
 	mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed // indirect
 	mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b // indirect
-	mvdan.cc/unparam v0.0.0-20210104141923-aac4ce9116a7 // indirect
+	mvdan.cc/unparam v0.0.0-20211214103731-d0ef000c54e5 // indirect
 )

go.sum

@@ -7,6 +7,7 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
@@ -20,6 +21,7 @@ cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOY
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
 cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
+cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
 cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
 cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
 cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
@@ -40,7 +42,6 @@ cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4g
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/firestore v1.6.0/go.mod h1:afJwI0vaXwAG54kI7A//lP/lSPDkQORQuMkv56TxEPU=
 cloud.google.com/go/firestore v1.6.1/go.mod h1:asNXNOzBdyVQmEU+ggO8UPodTkEVFW5Qx+rwHnAz+EY=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
@@ -54,6 +55,7 @@ cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0Zeo
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
+cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 contrib.go.opencensus.io/exporter/stackdriver v0.13.4/go.mod h1:aXENhDJ1Y4lIg4EUaVTwzvYETVNZk10Pu26tevFKLUc=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/Antonboom/errname v0.1.5 h1:IM+A/gz0pDhKmlt5KSNTVAvfLMb+65RxavBXpRtCUEg=
@@ -63,8 +65,8 @@ github.com/Antonboom/nilnil v0.1.0/go.mod h1:PhHLvRPSghY5Y7mX4TW+BHZQYo1A8flE5H2
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v0.4.1 h1:GaI7EiDXDRfa8VshkTj7Fym7ha+y8/XxIgD2okUIjLw=
-github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/toml v1.0.0 h1:dtDWrepsVPfW9H/4y7dDgFc2MBUSeJhlaDtK13CxFlU=
+github.com/BurntSushi/toml v1.0.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
@@ -88,11 +90,10 @@ github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEV
 github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
+github.com/OpenPeeDeeP/depguard v1.1.0 h1:pjK9nLPS1FwQYGGpPxoMYpe7qACHOhAWQMQzV71i49o=
+github.com/OpenPeeDeeP/depguard v1.1.0/go.mod h1:JtAMzWkmFEzDPyAd+W0NHl1lvpQKTvT9jnRVsohBKpc=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrdtl/UvroE=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/adlio/schema v1.2.3 h1:GfKThfEsjS9cCz7gaF8zdXv4cpTdUqdljkKGDTbJjys=
@@ -119,10 +120,10 @@ github.com/armon/go-metrics v0.3.9/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4
 github.com/armon/go-metrics v0.3.10/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/ashanbrown/forbidigo v1.2.0 h1:RMlEFupPCxQ1IogYOQUnIQwGEUGK8g5vAPMRyJoSxbc=
-github.com/ashanbrown/forbidigo v1.2.0/go.mod h1:vVW7PEdqEFqapJe95xHkTfB1+XvZXBFg8t0sG2FIxmI=
-github.com/ashanbrown/makezero v0.0.0-20210520155254-b6261585ddde h1:YOsoVXsZQPA9aOTy1g0lAJv5VzZUvwQuZqug8XPeqfM=
-github.com/ashanbrown/makezero v0.0.0-20210520155254-b6261585ddde/go.mod h1:oG9Dnez7/ESBqc4EdrdNlryeo7d0KcW1ftXHm7nU/UU=
+github.com/ashanbrown/forbidigo v1.3.0 h1:VkYIwb/xxdireGAdJNZoo24O4lmnEWkactplBlWTShc=
+github.com/ashanbrown/forbidigo v1.3.0/go.mod h1:vVW7PEdqEFqapJe95xHkTfB1+XvZXBFg8t0sG2FIxmI=
+github.com/ashanbrown/makezero v1.1.0 h1:b2FVq4dTlBpy9f6qxhbyWH+6zy56IETE9cFbBGtDqs8=
+github.com/ashanbrown/makezero v1.1.0/go.mod h1:oG9Dnez7/ESBqc4EdrdNlryeo7d0KcW1ftXHm7nU/UU=
 github.com/aws/aws-sdk-go v1.23.20/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.25.37/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.36.30/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
@@ -137,16 +138,16 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/bits-and-blooms/bitset v1.2.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
-github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
-github.com/bketelsen/crypt v0.0.4/go.mod h1:aI6NrJ0pMGgvZKL1iVgXLnfIFJtfV+bKCoqOes/6LfM=
 github.com/bkielbasa/cyclop v1.2.0 h1:7Jmnh0yL2DjKfw28p86YTd/B4lRGcNuu12sKE35sM7A=
 github.com/bkielbasa/cyclop v1.2.0/go.mod h1:qOI0yy6A7dYC4Zgsa72Ppm9kONl0RoIlPbzot9mhmeI=
-github.com/blizzy78/varnamelen v0.3.0 h1:80mYO7Y5ppeEefg1Jzu+NBg16iwToOQVnDnNIoWSShs=
-github.com/blizzy78/varnamelen v0.3.0/go.mod h1:hbwRdBvoBqxk34XyQ6HA0UH3G0/1TKuv5AC4eaBT0Ec=
+github.com/blizzy78/varnamelen v0.5.0 h1:v9LpMwxzTqAJC4lsD/jR7zWb8a66trcqhTEH4Mk6Fio=
+github.com/blizzy78/varnamelen v0.5.0/go.mod h1:Mc0nLBKI1/FP0Ga4kqMOgBig0eS5QtR107JnMAb1Wuc=
 github.com/bombsimon/wsl/v3 v3.3.0 h1:Mka/+kRLoQJq7g2rggtgQsjuI/K5Efd87WX96EWFxjM=
 github.com/bombsimon/wsl/v3 v3.3.0/go.mod h1:st10JtZYLE4D5sC7b8xV4zTKZwAQjCH/Hy2Pm1FNZIc=
-github.com/breml/bidichk v0.1.1 h1:Qpy8Rmgos9qdJxhka0K7ADEE5bQZX9PQUthkgggHpFM=
-github.com/breml/bidichk v0.1.1/go.mod h1:zbfeitpevDUGI7V91Uzzuwrn4Vls8MoBMrwtt78jmso=
+github.com/breml/bidichk v0.2.1 h1:SRNtZuLdfkxtocj+xyHXKC1Uv3jVi6EPYx+NHSTNQvE=
+github.com/breml/bidichk v0.2.1/go.mod h1:zbfeitpevDUGI7V91Uzzuwrn4Vls8MoBMrwtt78jmso=
+github.com/breml/errchkjson v0.2.1 h1:QCToXnY9BNngrbJoW3qfCTt3BdtbnsI6wyP/WGrxxSE=
+github.com/breml/errchkjson v0.2.1/go.mod h1:jZEATw/jF69cL1iy7//Yih8yp/mXp2CBoBr9GJwCAsY=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btcd v0.22.0-beta h1:LTDpDKUM5EeOFBPM8IXpinEcmZ6FWfNZbE3lfrfdnWo=
 github.com/btcsuite/btcd v0.22.0-beta/go.mod h1:9n5ntfhhHQBIhUvlhDvD3Qg6fRUj4jkN0VB8L8svzOA=
@@ -203,7 +204,6 @@ github.com/containerd/continuity v0.2.1 h1:/EeEo2EtN3umhbbgCveyjifoMYg0pS+nMMEem
 github.com/containerd/continuity v0.2.1/go.mod h1:wCYX+dRqZdImhGucXOqTQn05AhX6EUDaGEMUzTFFpLg=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -216,6 +216,7 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/cyphar/filepath-securejoin v0.2.2/go.mod h1:FpkQEhXnPnOthhzymB7CGsFk2G9VLXONKD9G7QGMM+4=
@@ -260,8 +261,8 @@ github.com/envoyproxy/go-control-plane v0.10.1/go.mod h1:AY7fTTXNdv/aJ2O5jwpxAPO
 github.com/envoyproxy/protoc-gen-validate v0.0.14/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/envoyproxy/protoc-gen-validate v0.6.2/go.mod h1:2t7qjJNvHPx8IjnBOzl9E9/baC+qXE/TeeyBRzgJDws=
-github.com/esimonov/ifshort v1.0.3 h1:JD6x035opqGec5fZ0TLjXeROD2p5H7oLGn8MKfy9HTM=
-github.com/esimonov/ifshort v1.0.3/go.mod h1:yZqNJUrNn20K8Q9n2CrjTKYyVEmX209Hgu+M1LBpeZE=
+github.com/esimonov/ifshort v1.0.4 h1:6SID4yGWfRae/M7hkVDVVyppy8q/v9OuxNdmjLQStBA=
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@@ -284,18 +285,18 @@ github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHqu
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@@ -309,10 +310,7 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
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@@ -329,14 +327,12 @@ github.com/go-toolsmith/astequal v1.0.1 h1:JbSszi42Jiqu36Gnf363HWS9MTEAz67vTQLpo
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@@ -402,8 +398,8 @@ github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613 h1:9kfjN3AdxcbsZB
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@@ -449,8 +445,10 @@ github.com/google/pprof v0.0.0-20200507031123-427632fa3b1c/go.mod h1:ZgVRPoUq/hf
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@@ -466,11 +464,12 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
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@@ -490,8 +489,8 @@ github.com/gostaticanalysis/comment v1.3.0/go.mod h1:xMicKDx7XRXYdVwY9f9wQpDJVnq
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@@ -511,10 +510,9 @@ github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t
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@@ -532,7 +530,6 @@ github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+
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@@ -540,20 +537,16 @@ github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/b
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@@ -600,8 +593,8 @@ github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfV
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@@ -623,12 +616,14 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
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@@ -636,14 +631,14 @@ github.com/kyoh86/exportloopref v0.1.8 h1:5Ry/at+eFdkX9Vsdw3qU4YkvGtzuVfzT4X7S77
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@@ -652,7 +647,6 @@ github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e/go.mod h1:7rIyQ
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@@ -666,13 +660,11 @@ github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVc
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@@ -704,19 +695,14 @@ github.com/miekg/pkcs11 v1.0.2/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WT
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@@ -1044,7 +1037,10 @@ github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
-github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
+github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
+gitlab.com/bosi/decorder v0.2.1 h1:ehqZe8hI4w7O4b1vgsDZw1YU1PE7iJXrQWFMsocbQ1w=
+gitlab.com/bosi/decorder v0.2.1/go.mod h1:6C/nhLSbF6qZbYD8bRmISBwc6vcWdNsiIBkRvjJFrH0=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
@@ -1100,12 +1096,15 @@ golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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@@ -1146,15 +1145,15 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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-golang.org/x/mod v0.5.0 h1:UG21uOlmZabA4fW5i7ZX6bjw1xELEGg/ZLgZq9auk/Q=
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@@ -1206,6 +1205,8 @@ golang.org/x/net v0.0.0-20210614182718-04defd469f4e/go.mod h1:9nx3DQGgdP8bBQD5qx
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@@ -1219,7 +1220,6 @@ golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ
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@@ -1260,7 +1260,6 @@ golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1302,11 +1301,13 @@ golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1314,6 +1315,7 @@ golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1333,12 +1335,19 @@ golang.org/x/sys v0.0.0-20210917161153-d61c044b1678/go.mod h1:oPkhp1MJrh7nUepCBc
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@@ -1359,7 +1368,6 @@ golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGm
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@@ -1378,7 +1386,6 @@ golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgw
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@@ -1388,7 +1395,6 @@ golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -1408,7 +1414,6 @@ golang.org/x/tools v0.0.0-20200224181240-023911ca70b2/go.mod h1:TB2adYChydJhpapK
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@@ -1445,10 +1450,9 @@ golang.org/x/tools v0.0.0-20201201161351-ac6f37ff4c2a/go.mod h1:emZCQorbCU4vsT4f
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@@ -1457,9 +1461,10 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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@@ -1491,7 +1496,6 @@ google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34q
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-google.golang.org/api v0.44.0/go.mod h1:EBOGZqzyhtvMDoxwS97ctnh0zUmYY6CxqXsc1AvkYD8=
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@@ -1503,6 +1507,7 @@ google.golang.org/api v0.57.0/go.mod h1:dVPlbZyBo2/OjBpmvNdpn2GRm6rPy75jyU7bmhdr
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@@ -1552,7 +1557,9 @@ google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6D
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@@ -1613,8 +1620,10 @@ google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnD
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@@ -1642,13 +1651,10 @@ gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
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@@ -1676,16 +1682,16 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
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