add flags to control gateway lookback parameters

Merge pull request #6580 from filecoin-project/release/v1.10.0
Release/v1.10.0
2021-06-25 22:29:34 +00:00 · 2021-06-23 23:37:57 -04:00 · 2021-06-23 23:21:36 -04:00 · 2021-06-23 22:29:03 -04:00 · 2021-06-23 19:18:27 -07:00 · 2021-06-23 19:09:43 -07:00
745 changed files with 98558 additions and 13470 deletions
@@ -1,15 +1,17 @@
 version: 2.1
 orbs:
  go: gotest/tools@0.0.13
+  aws-cli: circleci/aws-cli@1.3.2
+  packer: salaxander/packer@0.0.3

 executors:
  golang:
    docker:
-      - image: circleci/golang:1.14.6
+      - image: circleci/golang:1.15.5
    resource_class: 2xlarge
  ubuntu:
    docker:
-      - image: ubuntu:19.10
+      - image: ubuntu:20.04

 commands:
  install-deps:
@@ -34,7 +36,7 @@ commands:
          condition: << parameters.linux >>
          steps:
            - run: sudo apt-get update
-            - run: sudo apt-get install ocl-icd-opencl-dev
+            - run: sudo apt-get install ocl-icd-opencl-dev libhwloc-dev
      - run: git submodule sync
      - run: git submodule update --init
  download-params:
@@ -128,6 +130,9 @@ jobs:
      winpost-test:
        type: string
        default: "0"
+      deadline-test:
+        type: string
+        default: "0"
      test-suite-name:
        type: string
        default: unit
@@ -161,6 +166,7 @@ jobs:
          name: go test
          environment:
            LOTUS_TEST_WINDOW_POST: << parameters.winpost-test >>
+            LOTUS_TEST_DEADLINE_TOGGLING: << parameters.deadline-test >>
            SKIP_CONFORMANCE: "1"
          command: |
            mkdir -p /tmp/test-reports/<< parameters.test-suite-name >>
@@ -200,6 +206,12 @@ jobs:
    <<: *test
  test-window-post:
    <<: *test
+  test-window-post-dispute:
+    <<: *test
+  test-deadline-toggling:
+    <<: *test
+  test-terminate:
+    <<: *test
  test-conformance:
    description: |
      Run tests using a corpus of interoperable test vectors for Filecoin 
@@ -262,24 +274,97 @@ jobs:
          path: /tmp/test-reports
      - store_artifacts:
          path: /tmp/test-artifacts/conformance-coverage.html
-  build-lotus-soup:
+  build-ntwk-calibration:
    description: |
-      Compile `lotus-soup` Testground test plan using the current version of Lotus.
+      Compile lotus binaries for the calibration network
+    parameters:
+      <<: *test-params
+    executor: << parameters.executor >>
+    steps:
+      - install-deps
+      - prepare
+      - run: make calibnet
+      - run: mkdir linux-calibrationnet && mv lotus lotus-miner lotus-worker linux-calibrationnet
+      - persist_to_workspace:
+          root: "."
+          paths:
+            - linux-calibrationnet
+  build-ntwk-butterfly:
+    description: |
+      Compile lotus binaries for the butterfly network
+    parameters:
+      <<: *test-params
+    executor: << parameters.executor >>
+    steps:
+      - install-deps
+      - prepare
+      - run: make butterflynet
+      - run: mkdir linux-butterflynet && mv lotus lotus-miner lotus-worker linux-butterflynet
+      - persist_to_workspace:
+          root: "."
+          paths:
+            - linux-butterflynet
+  build-ntwk-nerpa:
+    description: |
+      Compile lotus binaries for the nerpa network
+    parameters:
+      <<: *test-params
+    executor: << parameters.executor >>
+    steps:
+      - install-deps
+      - prepare
+      - run: make nerpanet
+      - run: mkdir linux-nerpanet && mv lotus lotus-miner lotus-worker linux-nerpanet
+      - persist_to_workspace:
+          root: "."
+          paths:
+            - linux-nerpanet
+  build-lotus-soup:
+    description: |
+      Compile `lotus-soup` Testground test plan
    parameters:
      <<: *test-params
    executor: << parameters.executor >>
    steps:
      - install-deps
      - prepare
-      - run: cd extern/oni && git submodule sync
-      - run: cd extern/oni && git submodule update --init
      - run: cd extern/filecoin-ffi && make
      - run:
-          name: "replace lotus, filecoin-ffi, blst and fil-blst deps"
-          command: cd extern/oni/lotus-soup && go mod edit -replace github.com/filecoin-project/lotus=../../../ && go mod edit -replace github.com/filecoin-project/filecoin-ffi=../../filecoin-ffi && go mod edit -replace github.com/supranational/blst=../../fil-blst/blst && go mod edit -replace github.com/filecoin-project/fil-blst=../../fil-blst
+          name: "go get lotus@master"
+          command: cd testplans/lotus-soup && go mod edit -replace=github.com/filecoin-project/lotus=../..
      - run:
          name: "build lotus-soup testplan"
-          command: pushd extern/oni/lotus-soup && go build -tags=testground .
+          command: pushd testplans/lotus-soup && go build -tags=testground .
+  trigger-testplans:
+    description: |
+      Trigger `lotus-soup` test cases on TaaS
+    parameters:
+      <<: *test-params
+    executor: << parameters.executor >>
+    steps:
+      - install-deps
+      - prepare
+      - run:
+          name: "download testground"
+          command: wget https://gist.github.com/nonsense/5fbf3167cac79945f658771aed32fc44/raw/2e17eb0debf7ec6bdf027c1bdafc2c92dd97273b/testground-d3e9603 -O ~/testground-cli && chmod +x ~/testground-cli
+      - run:
+          name: "prepare .env.toml"
+          command: pushd testplans/lotus-soup && mkdir -p $HOME/testground && cp env-ci.toml $HOME/testground/.env.toml && echo 'endpoint="https://ci.testground.ipfs.team"' >> $HOME/testground/.env.toml && echo 'user="circleci"' >> $HOME/testground/.env.toml
+      - run:
+          name: "prepare testground home dir and link test plans"
+          command: mkdir -p $HOME/testground/plans && ln -s $(pwd)/testplans/lotus-soup $HOME/testground/plans/lotus-soup && ln -s $(pwd)/testplans/graphsync $HOME/testground/plans/graphsync
+      - run:
+          name: "go get lotus@master"
+          command: cd testplans/lotus-soup && go get github.com/filecoin-project/lotus@master
+      - run:
+          name: "trigger deals baseline testplan on taas"
+          command: ~/testground-cli run composition -f $HOME/testground/plans/lotus-soup/_compositions/baseline-k8s-3-1.toml --metadata-commit=$CIRCLE_SHA1 --metadata-repo=filecoin-project/lotus --metadata-branch=$CIRCLE_BRANCH
+      - run:
+          name: "trigger payment channel stress testplan on taas"
+          command: ~/testground-cli run composition -f $HOME/testground/plans/lotus-soup/_compositions/paych-stress-k8s.toml --metadata-commit=$CIRCLE_SHA1 --metadata-repo=filecoin-project/lotus --metadata-branch=$CIRCLE_BRANCH
+      - run:
+          name: "trigger graphsync testplan on taas"
+          command: ~/testground-cli run composition -f $HOME/testground/plans/graphsync/_compositions/stress-k8s.toml --metadata-commit=$CIRCLE_SHA1 --metadata-repo=filecoin-project/lotus --metadata-branch=$CIRCLE_BRANCH


  build-macos:
@@ -294,8 +379,8 @@ jobs:
      - run:
          name: Install go
          command: |
-            curl -O https://dl.google.com/go/go1.14.2.darwin-amd64.pkg && \
-            sudo installer -pkg go1.14.2.darwin-amd64.pkg -target /
+            curl -O https://dl.google.com/go/go1.15.5.darwin-amd64.pkg && \
+            sudo installer -pkg go1.15.5.darwin-amd64.pkg -target /
      - run:
          name: Install pkg-config
          command: HOMEBREW_NO_AUTO_UPDATE=1 brew install pkg-config
@@ -309,6 +394,15 @@ jobs:
          command: |
            curl --location https://github.com/stedolan/jq/releases/download/jq-1.6/jq-osx-amd64 --output /usr/local/bin/jq
            chmod +x /usr/local/bin/jq
+      - run:
+          name: Install hwloc
+          command: |
+            mkdir ~/hwloc
+            curl --location https://download.open-mpi.org/release/hwloc/v2.4/hwloc-2.4.1.tar.gz --output ~/hwloc/hwloc-2.4.1.tar.gz
+            cd ~/hwloc
+            tar -xvzpf hwloc-2.4.1.tar.gz
+            cd hwloc-2.4.1
+            ./configure && make && sudo make install
      - restore_cache:
          name: restore cargo cache
          key: v3-go-deps-{{ arch }}-{{ checksum "~/go/src/github.com/filecoin-project/lotus/go.sum" }}
@@ -334,6 +428,40 @@ jobs:
            - "~/.rustup"
            - "~/.cargo"

+  build-appimage:
+    machine:
+      image: ubuntu-2004:202104-01
+    steps:
+      - checkout
+      - attach_workspace:
+          at: "."
+      - run:
+          name: install appimage-builder
+          command: |
+            # docs: https://appimage-builder.readthedocs.io/en/latest/intro/install.html
+            sudo apt update
+            sudo apt install -y python3-pip python3-setuptools patchelf desktop-file-utils libgdk-pixbuf2.0-dev fakeroot strace
+            sudo curl -Lo /usr/local/bin/appimagetool https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage
+            sudo chmod +x /usr/local/bin/appimagetool
+            sudo pip3 install appimage-builder
+      - run:
+          name: install lotus dependencies
+          command: sudo apt install ocl-icd-opencl-dev libhwloc-dev
+      - run:
+          name: build appimage
+          command: |
+            sed -i "s/version: latest/version: ${CIRCLE_TAG:-latest}/" AppImageBuilder.yml
+            make appimage
+      - run:
+          name: prepare workspace
+          command: |
+            mkdir appimage
+            mv Lotus-latest-x86_64.AppImage appimage
+      - persist_to_workspace:
+          root: "."
+          paths:
+            - appimage
+
  gofmt:
    executor: golang
    steps:
@@ -350,7 +478,7 @@ jobs:
      - run: make deps
      - run: go install golang.org/x/tools/cmd/goimports
      - run: go install github.com/hannahhoward/cbor-gen-for
-      - run: go generate ./...
+      - run: make type-gen
      - run: git --no-pager diff
      - run: git --no-pager diff --quiet

@@ -359,8 +487,19 @@ jobs:
    steps:
      - install-deps
      - prepare
+      - run: go install golang.org/x/tools/cmd/goimports
+      - run: zcat build/openrpc/full.json.gz | jq > ../pre-openrpc-full
+      - run: zcat build/openrpc/miner.json.gz | jq > ../pre-openrpc-miner
+      - run: zcat build/openrpc/worker.json.gz | jq > ../pre-openrpc-worker
+      - run: make deps
      - run: make docsgen
+      - run: zcat build/openrpc/full.json.gz | jq > ../post-openrpc-full
+      - run: zcat build/openrpc/miner.json.gz | jq > ../post-openrpc-miner
+      - run: zcat build/openrpc/worker.json.gz | jq > ../post-openrpc-worker
      - run: git --no-pager diff
+      - run: diff ../pre-openrpc-full ../post-openrpc-full
+      - run: diff ../pre-openrpc-miner ../post-openrpc-miner
+      - run: diff ../pre-openrpc-worker ../post-openrpc-worker
      - run: git --no-pager diff --quiet

  lint: &lint
@@ -422,6 +561,171 @@ jobs:
          name: Publish release
          command: ./scripts/publish-release.sh

+  build-and-push-image:
+    description: build and push docker images to public AWS ECR registry
+    executor: aws-cli/default
+    parameters:
+      profile-name:
+        type: string
+        default: "default"
+        description: AWS profile name to be configured.
+
+      aws-access-key-id:
+        type: env_var_name
+        default: AWS_ACCESS_KEY_ID
+        description: >
+          AWS access key id for IAM role. Set this to the name of
+          the environment variable you will set to hold this
+          value, i.e. AWS_ACCESS_KEY.
+
+      aws-secret-access-key:
+        type: env_var_name
+        default: AWS_SECRET_ACCESS_KEY
+        description: >
+          AWS secret key for IAM role. Set this to the name of
+          the environment variable you will set to hold this
+          value, i.e. AWS_SECRET_ACCESS_KEY.
+
+      region:
+        type: env_var_name
+        default: AWS_REGION
+        description: >
+          Name of env var storing your AWS region information,
+          defaults to AWS_REGION
+
+      account-url:
+        type: env_var_name
+        default: AWS_ECR_ACCOUNT_URL
+        description: >
+          Env var storing Amazon ECR account URL that maps to an AWS account,
+          e.g. {awsAccountNum}.dkr.ecr.us-west-2.amazonaws.com
+          defaults to AWS_ECR_ACCOUNT_URL
+
+      dockerfile:
+        type: string
+        default: Dockerfile
+        description: Name of dockerfile to use. Defaults to Dockerfile.
+
+      path:
+        type: string
+        default: .
+        description: Path to the directory containing your Dockerfile and build context. Defaults to . (working directory).
+
+      extra-build-args:
+        type: string
+        default: ""
+        description: >
+          Extra flags to pass to docker build. For examples, see
+          https://docs.docker.com/engine/reference/commandline/build
+
+      repo:
+        type: string
+        description: Name of an Amazon ECR repository
+
+      tag:
+        type: string
+        default: "latest"
+        description: A comma-separated string containing docker image tags to build and push (default = latest)
+
+    steps:
+      - run:
+          name: Confirm that environment variables are set
+          command: |
+            if [ -z "$AWS_ACCESS_KEY_ID" ]; then
+              echo "No AWS_ACCESS_KEY_ID is set. Skipping build-and-push job ..."
+              circleci-agent step halt
+            fi
+
+      - aws-cli/setup:
+          profile-name: <<parameters.profile-name>>
+          aws-access-key-id: <<parameters.aws-access-key-id>>
+          aws-secret-access-key: <<parameters.aws-secret-access-key>>
+          aws-region: <<parameters.region>>
+
+      - run:
+          name: Log into Amazon ECR
+          command: |
+            aws ecr-public get-login-password --region $<<parameters.region>> --profile <<parameters.profile-name>> | docker login --username AWS --password-stdin $<<parameters.account-url>>
+
+      - checkout
+
+      - setup_remote_docker:
+          version: 19.03.13
+          docker_layer_caching: false
+
+      - run:
+          name: Build docker image
+          command: |
+            registry_id=$(echo $<<parameters.account-url>> | sed "s;\..*;;g")
+
+            docker_tag_args=""
+            IFS="," read -ra DOCKER_TAGS \<<< "<< parameters.tag >>"
+            for tag in "${DOCKER_TAGS[@]}"; do
+              docker_tag_args="$docker_tag_args -t $<<parameters.account-url>>/<<parameters.repo>>:$tag"
+            done
+
+            docker build \
+              <<#parameters.extra-build-args>><<parameters.extra-build-args>><</parameters.extra-build-args>> \
+              -f <<parameters.path>>/<<parameters.dockerfile>> \
+              $docker_tag_args \
+              <<parameters.path>>
+
+      - run:
+          name: Push image to Amazon ECR
+          command: |
+            IFS="," read -ra DOCKER_TAGS \<<< "<< parameters.tag >>"
+            for tag in "${DOCKER_TAGS[@]}"; do
+              docker push $<<parameters.account-url>>/<<parameters.repo>>:${tag}
+            done
+
+  publish-packer-mainnet:
+    description: build and push AWS IAM and DigitalOcean droplet.
+    executor:
+      name: packer/default
+      packer-version: 1.6.6
+    steps:
+      - checkout
+      - attach_workspace:
+          at: "."
+      - packer/build:
+          template: tools/packer/lotus.pkr.hcl
+          args: "-var ci_workspace_bins=./linux -var lotus_network=mainnet -var git_tag=$CIRCLE_TAG"
+  publish-packer-calibrationnet:
+    description: build and push AWS IAM and DigitalOcean droplet.
+    executor:
+      name: packer/default
+      packer-version: 1.6.6
+    steps:
+      - checkout
+      - attach_workspace:
+          at: "."
+      - packer/build:
+          template: tools/packer/lotus.pkr.hcl
+          args: "-var ci_workspace_bins=./linux-calibrationnet -var lotus_network=calibrationnet -var git_tag=$CIRCLE_TAG"
+  publish-packer-butterflynet:
+    description: build and push AWS IAM and DigitalOcean droplet.
+    executor:
+      name: packer/default
+      packer-version: 1.6.6
+    steps:
+      - checkout
+      - attach_workspace:
+          at: "."
+      - packer/build:
+          template: tools/packer/lotus.pkr.hcl
+          args: "-var ci_workspace_bins=./linux-butterflynet -var lotus_network=butterflynet -var git_tag=$CIRCLE_TAG"
+  publish-packer-nerpanet:
+    description: build and push AWS IAM and DigitalOcean droplet.
+    executor:
+      name: packer/default
+      packer-version: 1.6.6
+    steps:
+      - checkout
+      - attach_workspace:
+          at: "."
+      - packer/build:
+          template: tools/packer/lotus.pkr.hcl
+          args: "-var ci_workspace_bins=./linux-nerpanet -var lotus_network=nerpanet -var git_tag=$CIRCLE_TAG"

 workflows:
  version: 2.1
@@ -453,16 +757,32 @@ workflows:
          test-suite-name: cli
          packages: "./cli/... ./cmd/... ./api/..."
      - test-window-post:
+          codecov-upload: true
          go-test-flags: "-run=TestWindowedPost"
          winpost-test: "1"
          test-suite-name: window-post
+      - test-window-post-dispute:
+          codecov-upload: true
+          go-test-flags: "-run=TestWindowPostDispute"
+          winpost-test: "1"
+          test-suite-name: window-post-dispute
+      - test-terminate:
+          codecov-upload: true
+          go-test-flags: "-run=TestTerminate"
+          winpost-test: "1"
+          test-suite-name: terminate
+      - test-deadline-toggling:
+          codecov-upload: true
+          go-test-flags: "-run=TestDeadlineToggling"
+          deadline-test: "1"
+          test-suite-name: deadline-toggling
      - test-short:
          go-test-flags: "--timeout 10m --short"
          test-suite-name: short
          filters:
            tags:
              only:
-                - /^v\d+\.\d+\.\d+$/
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
      - test-conformance:
          test-suite-name: conformance
          packages: "./conformance"
@@ -471,7 +791,11 @@ workflows:
          test-suite-name: conformance-bleeding-edge
          packages: "./conformance"
          vectors-branch: master
-      - build-lotus-soup
+      - trigger-testplans:
+          filters:
+            branches:
+              only:
+                - master
      - build-debug
      - build-all:
          requires:
@@ -479,7 +803,29 @@ workflows:
          filters:
            tags:
              only:
-                - /^v\d+\.\d+\.\d+$/
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-ntwk-calibration:
+          requires:
+            - test-short
+          filters:
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-ntwk-butterfly:
+          requires:
+            - test-short
+          filters:
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-ntwk-nerpa:
+          requires:
+            - test-short
+          filters:
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-lotus-soup
      - build-macos:
          requires:
            - test-short
@@ -489,15 +835,72 @@ workflows:
                - /.*/
            tags:
              only:
-                - /^v\d+\.\d+\.\d+$/
-      - publish:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-appimage:
          requires:
-            - build-all
-            - build-macos
+            - test-short
          filters:
            branches:
              ignore:
                - /.*/
            tags:
              only:
-                - /^v\d+\.\d+\.\d+$/
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - publish:
+          requires:
+            - build-all
+            - build-macos
+            - build-appimage
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+
+      - build-and-push-image:
+          dockerfile: Dockerfile.lotus
+          path: .
+          repo: lotus-dev
+          tag: '${CIRCLE_SHA1:0:8}'
+      - publish-packer-mainnet:
+          requires:
+            - build-all
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - publish-packer-calibrationnet:
+          requires:
+            - build-ntwk-calibration
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - publish-packer-butterflynet:
+          requires:
+            - build-ntwk-butterfly
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - publish-packer-nerpanet:
+          requires:
+            - build-ntwk-nerpa
+          filters:
+            branches:
+              ignore:
+                - /.*/
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
@@ -5,5 +5,15 @@ ignore:
  - "api/test/*"
  - "gen/**/*"
  - "gen/*"
+  - "cmd/lotus-shed/*"
+  - "cmd/tvx/*"
+  - "cmd/lotus-pcr/*"
+  - "cmd/tvx/*"
+  - "cmd/lotus-chainwatch/*"
+  - "cmd/lotus-health/*"
+  - "cmd/lotus-fountain/*"
+  - "cmd/lotus-townhall/*"
+  - "cmd/lotus-stats/*"
+  - "cmd/lotus-pcr/*"
 github_checks:
  annotations: false
@@ -8,9 +8,9 @@
 ## the PR before merging.

 ### Global owners.
-*                       @magik6k @whyrusleeping @Kubuxu
+*                       @magik6k @arajasek

 ### Conformance testing.
-conformance/            @raulk
-extern/test-vectors     @raulk
-cmd/tvx                 @raulk
+conformance/            @ZenGround0
+extern/test-vectors     @ZenGround0
+cmd/tvx                 @ZenGround0
@@ -0,0 +1,33 @@
+---
+name: Bug Report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: hint/needs-triaging, kind/bug
+assignees: ''
+
+---
+
+> Note: For security-related bugs/issues, please follow the [security policy](https://github.com/filecoin-project/lotus/security/policy).
+
+**Describe the bug**
+A clear and concise description of what the bug is. 
+(If you are not sure what the bug is, try to figure it out via a [discussion](https://github.com/filecoin-project/lotus/discussions/new) first!
+
+**Version (run `lotus version`):**
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Run '...'
+2. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Logs**
+Provide daemon/miner/worker logs, and goroutines(if available) for troubleshooting.
+ 
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.
@@ -1,27 +0,0 @@
---
-name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: ''
-assignees: ''
-
---
-
-**Describe the bug**
-A clear and concise description of what the bug is.
-
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Run '...'
-2. See error
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Version (run `lotus version`):**
-
-**Additional context**
-Add any other context about the problem here.
@@ -0,0 +1,49 @@
+---
+name: Deal Making Issues
+about: Create a report for help with deal making failures.
+title: "[Deal Making Issue]"
+labels: hint/needs-triaging, area/markets
+assignees: ''
+
+---
+
+> Note: For security-related bugs/issues, please follow the [security policy](https://github.com/filecoin-project/lotus/security/policy).
+
+Please provide all the information requested here to help us troubleshoot "deal making failed" issues.
+If the information requested is missing, we will probably have to just ask you to provide it anyway,
+before we can help debug.
+
+**Basic Information**
+Including information like, Are you the client or the miner? Is this a storage deal or a retrieval deal? Is it an offline deal?
+
+**Describe the problem**
+
+A brief description of the problem you encountered while trying to make a deal. 
+
+**Version**
+
+The output of `lotus --version`.
+
+**Setup**
+
+You miner(if applicable) and daemon setup, i.e: What hardware do you use, how much ram and etc.
+
+**To Reproduce**
+ Steps to reproduce the behavior:
+ 1. Run '...'
+ 2. See error
+
+**Deal status**
+
+The output of `lotus client list-deals -v` and/or `lotus-miner storage-deals|retrieval-deals|data-transfers list [-v]` commands for the deal(s) in question.
+
+**Lotus daemon and miner logs**
+
+Please go through the logs of your daemon and miner(if applicable), and include screenshots of any error/warning-like messages you find.
+
+Alternatively please upload full log files and share a link here
+
+** Code modifications **
+
+If you have modified parts of lotus, please describe which areas were modified,
+and the scope of those modifications
@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[Feature Request]"
+labels: hint/needs-triaging
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
@@ -0,0 +1,35 @@
+---
+name: Mining Issues
+about: Create a report for help with mining failures.
+title: "[Mining Issue]"
+labels: hint/needs-triaging, area/mining
+assignees: ''
+
+---
+
+> Note: For security-related bugs/issues, please follow the [security policy](https://github.com/filecoin-project/lotus/security/policy).
+
+Please provide all the information requested here to help us troubleshoot "mining/WinningPoSt failed" issues.
+If the information requested is missing, you may be asked you to provide it.
+
+**Describe the problem**
+A brief description of the problem you encountered while mining new blocks.
+
+**Version**
+
+The output of `lotus --version`.
+
+**Setup**
+
+You miner and daemon setup, including what hardware do you use, your environment variable settings, how do you run your miner and worker, do you use GPU and etc.
+
+**Lotus daemon and miner logs**
+
+Please go through the logs of your daemon and miner, and include screenshots of any error/warning-like messages you find, highlighting the one has "winning post" in it.
+
+Alternatively please upload full log files and share a link here
+
+** Code modifications **
+
+If you have modified parts of lotus, please describe which areas were modified,
+and the scope of those modifications
@@ -0,0 +1,46 @@
+---
+name: Proving Issues
+about: Create a report for help with proving failures.
+title: "[Proving Issue]"
+labels: area/proving, hint/needs-triaging
+assignees: ''
+
+---
+
+> Note: For security-related bugs/issues, please follow the [security policy](https://github.com/filecoin-project/lotus/security/policy).
+
+Please provide all the information requested here to help us troubleshoot "proving/window PoSt failed" issues.
+If the information requested is missing, we will probably have to just ask you to provide it anyway,
+before we can help debug.
+
+**Describe the problem**
+A brief description of the problem you encountered while proving the storage.
+
+**Version**
+
+The output of `lotus --version`.
+
+**Setup**
+
+You miner and daemon setup, including what hardware do you use, your environment variable settings, how do you run your miner and worker, do you use GPU and etc.
+
+**Proving status**
+
+The output of `lotus-miner proving` info.
+
+**Lotus miner logs**
+
+Please go through the logs of your miner, and include screenshots of any error-like messages you find, highlighting the one has "window post" in it.
+
+Alternatively please upload full log files and share a link here
+
+**Lotus miner diagnostic info**
+
+Please collect the following diagnostic information, and share a link here
+
+* lotus-miner diagnostic info `lotus-miner info all > allinfo.txt`
+
+** Code modifications **
+
+If you have modified parts of lotus, please describe which areas were modified,
+and the scope of those modifications
@@ -1,21 +1,32 @@
 ---
 name: Sealing Issues
 about: Create a report for help with sealing (commit) failures.
-title: ''
-labels: 'sealing'
+title: "[Sealing Issue]"
+labels: hint/needs-triaging, area/sealing
 assignees: ''

 ---

+> Note: For security-related bugs/issues, please follow the [security policy](https://github.com/filecoin-project/lotus/security/policy).
+
 Please provide all the information requested here to help us troubleshoot "commit failed" issues.
 If the information requested is missing, we will probably have to just ask you to provide it anyway,
 before we can help debug.

 **Describe the problem**
+A brief description of the problem you encountered while sealing a sector.

-A brief description of the problem you encountered while proving (sealing) a sector.
+**Version**

-Including what commands you ran, and a description of your setup, is very helpful.
+The output of `lotus --version`.
+
+**Setup**
+
+You miner and daemon setup, including what hardware do you use, your environment variable settings, how do you run your miner and worker, do you use GPU and etc.
+
+**Commands**
+
+Commands you ran.

 **Sectors status**

@@ -37,7 +48,3 @@ Please collect the following diagnostic information, and share a link here

 If you have modified parts of lotus, please describe which areas were modified,
 and the scope of those modifications
-
-**Version**
-
-The output of `lotus --version`.
@@ -0,0 +1,65 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1
@@ -13,6 +13,9 @@
 /lotus-gateway
 /lotus-pcr
 /lotus-wallet
+/lotus-keygen
+/docgen-md
+/docgen-openrpc
 /bench.json
 /lotuspond/front/node_modules
 /lotuspond/front/build
@@ -1,16 +1,9 @@
 [submodule "extern/filecoin-ffi"]
 	path = extern/filecoin-ffi
 	url = https://github.com/filecoin-project/filecoin-ffi.git
-	branch = master
 [submodule "extern/serialization-vectors"]
 	path = extern/serialization-vectors
-	url = https://github.com/filecoin-project/serialization-vectors
+	url = https://github.com/filecoin-project/serialization-vectors.git
 [submodule "extern/test-vectors"]
 	path = extern/test-vectors
 	url = https://github.com/filecoin-project/test-vectors.git
-[submodule "extern/fil-blst"]
-	path = extern/fil-blst
-	url = https://github.com/filecoin-project/fil-blst.git
-[submodule "extern/oni"]
-	path = extern/oni
-	url = https://github.com/filecoin-project/oni
@@ -16,6 +16,12 @@ linters:
    - deadcode
    - scopelint

+# We don't want to skip builtin/
+skip-dirs-use-default: false
+skip-dirs:
+  - vendor$
+  - testdata$
+  - examples$

 issues:
  exclude:
@@ -0,0 +1 @@
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@@ -0,0 +1,73 @@
+version: 1
+AppDir:
+  path: ./AppDir
+  app_info:
+    id: io.filecoin.lotus
+    name: Lotus
+    icon: icon
+    version: latest
+    exec: usr/bin/lotus
+    exec_args: $@
+  apt:
+    arch: amd64
+    allow_unauthenticated: true
+    sources:
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal main restricted
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal universe
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates universe
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal multiverse
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates multiverse
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted
+        universe multiverse
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security main restricted
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security universe
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security multiverse
+    - sourceline: deb https://cli-assets.heroku.com/apt ./
+    - sourceline: deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu focal main
+    - sourceline: deb http://ppa.launchpad.net/git-core/ppa/ubuntu focal main
+    - sourceline: deb http://archive.canonical.com/ubuntu focal partner
+    include:
+    - ocl-icd-libopencl1
+    - libhwloc15
+    exclude: []
+  files:
+    include:
+    - /usr/lib/x86_64-linux-gnu/libgcc_s.so.1
+    - /usr/lib/x86_64-linux-gnu/libpthread-2.31.so
+    - /usr/lib/x86_64-linux-gnu/libm-2.31.so
+    - /usr/lib/x86_64-linux-gnu/libdl-2.31.so
+    - /usr/lib/x86_64-linux-gnu/libc-2.31.so
+    - /usr/lib/x86_64-linux-gnu/libudev.so.1.6.17
+    exclude:
+    - usr/share/man
+    - usr/share/doc/*/README.*
+    - usr/share/doc/*/changelog.*
+    - usr/share/doc/*/NEWS.*
+    - usr/share/doc/*/TODO.*
+  test:
+    fedora:
+      image: appimagecrafters/tests-env:fedora-30
+      command: ./AppRun
+      use_host_x: true
+    debian:
+      image: appimagecrafters/tests-env:debian-stable
+      command: ./AppRun
+      use_host_x: true
+    arch:
+      image: appimagecrafters/tests-env:archlinux-latest
+      command: ./AppRun
+      use_host_x: true
+    centos:
+      image: appimagecrafters/tests-env:centos-7
+      command: ./AppRun
+      use_host_x: true
+    ubuntu:
+      image: appimagecrafters/tests-env:ubuntu-xenial
+      command: ./AppRun
+      use_host_x: true
+AppImage:
+  arch: x86_64
+  update-information: guess
+  sign-key: None
+
@@ -0,0 +1,74 @@
+FROM golang:1.15.6 AS builder-deps
+MAINTAINER Lotus Development Team
+
+RUN apt-get update && apt-get install -y ca-certificates build-essential clang ocl-icd-opencl-dev ocl-icd-libopencl1 jq libhwloc-dev
+
+ARG RUST_VERSION=nightly
+ENV XDG_CACHE_HOME="/tmp"
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH
+
+RUN wget "https://static.rust-lang.org/rustup/dist/x86_64-unknown-linux-gnu/rustup-init"; \
+    chmod +x rustup-init; \
+    ./rustup-init -y --no-modify-path --profile minimal --default-toolchain $RUST_VERSION; \
+    rm rustup-init; \
+    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
+    rustup --version; \
+    cargo --version; \
+    rustc --version;
+
+
+FROM builder-deps AS builder-local
+MAINTAINER Lotus Development Team
+
+COPY ./ /opt/filecoin
+WORKDIR /opt/filecoin
+RUN make clean deps
+
+
+FROM builder-local AS builder
+MAINTAINER Lotus Development Team
+
+WORKDIR /opt/filecoin
+
+ARG RUSTFLAGS=""
+ARG GOFLAGS=""
+
+RUN make deps lotus lotus-miner lotus-worker lotus-shed lotus-chainwatch lotus-stats
+
+
+FROM ubuntu:20.04 AS base
+MAINTAINER Lotus Development Team
+
+# Base resources
+COPY --from=builder /etc/ssl/certs                           /etc/ssl/certs
+COPY --from=builder /lib/x86_64-linux-gnu/libdl.so.2         /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/librt.so.1         /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/libgcc_s.so.1      /lib/
+COPY --from=builder /lib/x86_64-linux-gnu/libutil.so.1       /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libltdl.so.7   /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libnuma.so.1   /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libhwloc.so.5  /lib/
+COPY --from=builder /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /lib/
+
+RUN useradd -r -u 532 -U fc
+
+
+FROM base AS lotus
+MAINTAINER Lotus Development Team
+
+COPY --from=builder /opt/filecoin/lotus      /usr/local/bin/
+COPY --from=builder /opt/filecoin/lotus-shed /usr/local/bin/
+
+ENV FILECOIN_PARAMETER_CACHE /var/tmp/filecoin-proof-parameters
+ENV LOTUS_PATH /var/lib/lotus
+
+RUN mkdir /var/lib/lotus /var/tmp/filecoin-proof-parameters && chown fc /var/lib/lotus /var/tmp/filecoin-proof-parameters
+
+USER fc
+
+ENTRYPOINT ["/usr/local/bin/lotus"]
+
+CMD ["-help"]
@@ -5,10 +5,10 @@ all: build

 unexport GOFLAGS

-GOVERSION:=$(shell go version | cut -d' ' -f 3 | cut -d. -f 2)
-ifeq ($(shell expr $(GOVERSION) \< 14), 1)
-$(warning Your Golang version is go 1.$(GOVERSION))
-$(error Update Golang to version $(shell grep '^go' go.mod))
+GOVERSION:=$(shell go version | cut -d' ' -f 3 | sed 's/^go//' | awk -F. '{printf "%d%03d%03d", $$1, $$2, $$3}')
+ifeq ($(shell expr $(GOVERSION) \< 1015005), 1)
+$(warning Your Golang version is go$(shell expr $(GOVERSION) / 1000000).$(shell expr $(GOVERSION) % 1000000 / 1000).$(shell expr $(GOVERSION) % 1000))
+$(error Update Golang to version to at least 1.15.5)
 endif

 # git modules that need to be loaded
@@ -41,8 +41,14 @@ MODULES+=$(FFI_PATH)
 BUILD_DEPS+=build/.filecoin-install
 CLEAN+=build/.filecoin-install

-$(MODULES): build/.update-modules ;
+ffi-version-check:
+	@[[ "$$(awk '/const Version/{print $$5}' extern/filecoin-ffi/version.go)" -eq 3 ]] || (echo "FFI version mismatch, update submodules"; exit 1)
+BUILD_DEPS+=ffi-version-check

+.PHONY: ffi-version-check
+
+
+$(MODULES): build/.update-modules ;
 # dummy file that marks the last time modules were updated
 build/.update-modules:
 	git submodule update --init --recursive
@@ -57,11 +63,23 @@ CLEAN+=build/.update-modules
 deps: $(BUILD_DEPS)
 .PHONY: deps

+build-devnets: build lotus-seed lotus-shed lotus-wallet lotus-gateway
+.PHONY: build-devnets
+
 debug: GOFLAGS+=-tags=debug
-debug: lotus lotus-miner lotus-worker lotus-seed
+debug: build-devnets

 2k: GOFLAGS+=-tags=2k
-2k: lotus lotus-miner lotus-worker lotus-seed
+2k: build-devnets
+
+calibnet: GOFLAGS+=-tags=calibnet
+calibnet: build-devnets
+
+nerpanet: GOFLAGS+=-tags=nerpanet
+nerpanet: build-devnets
+
+butterflynet: GOFLAGS+=-tags=butterflynet
+butterflynet: build-devnets

 lotus: $(BUILD_DEPS)
 	rm -f lotus
@@ -179,7 +197,7 @@ BINS+=lotus-bench

 lotus-stats:
 	rm -f lotus-stats
-	go build -o lotus-stats ./cmd/lotus-stats
+	go build $(GOFLAGS) -o lotus-stats ./cmd/lotus-stats
 	go run github.com/GeertJohan/go.rice/rice append --exec lotus-stats -i ./build
 .PHONY: lotus-stats
 BINS+=lotus-stats
@@ -204,11 +222,24 @@ lotus-wallet:
 .PHONY: lotus-wallet
 BINS+=lotus-wallet

+lotus-keygen:
+	rm -f lotus-keygen
+	go build -o lotus-keygen ./cmd/lotus-keygen
+.PHONY: lotus-keygen
+BINS+=lotus-keygen
+
 testground:
 	go build -tags testground -o /dev/null ./cmd/lotus
 .PHONY: testground
 BINS+=testground

+
+tvx:
+	rm -f tvx
+	go build -o tvx ./cmd/tvx
+.PHONY: tvx
+BINS+=tvx
+
 install-chainwatch: lotus-chainwatch
 	install -C ./lotus-chainwatch /usr/local/bin/lotus-chainwatch

@@ -294,17 +325,65 @@ dist-clean:
 	git submodule deinit --all -f
 .PHONY: dist-clean

-type-gen:
+type-gen: api-gen
 	go run ./gen/main.go
-	go generate ./...
+	go generate -x ./...
+	goimports -w api/

-method-gen:
+method-gen: api-gen
 	(cd ./lotuspond/front/src/chain && go run ./methodgen.go)

-gen: type-gen method-gen
+actors-gen:
+	go run ./chain/actors/agen
+	go fmt ./...

-docsgen:
-	go run ./api/docgen > documentation/en/api-methods.md
+api-gen:
+	go run ./gen/api
+	goimports -w api
+	goimports -w api
+.PHONY: api-gen
+
+appimage: $(BUILD_DEPS)
+	rm -rf appimage-builder-cache || true
+	rm AppDir/io.filecoin.lotus.desktop || true
+	rm AppDir/icon.svg || true
+	rm Appdir/AppRun || true
+	mkdir -p AppDir/usr/bin
+	rm -rf lotus
+	go run github.com/GeertJohan/go.rice/rice embed-go -i ./build
+	go build $(GOFLAGS) -o lotus ./cmd/lotus
+	cp ./lotus AppDir/usr/bin/
+	appimage-builder
+docsgen: docsgen-md docsgen-openrpc
+
+docsgen-md-bin: api-gen actors-gen
+	go build $(GOFLAGS) -o docgen-md ./api/docgen/cmd
+docsgen-openrpc-bin: api-gen actors-gen
+	go build $(GOFLAGS) -o docgen-openrpc ./api/docgen-openrpc/cmd
+
+docsgen-md: docsgen-md-full docsgen-md-storage docsgen-md-worker
+
+docsgen-md-full: docsgen-md-bin
+	./docgen-md "api/api_full.go" "FullNode" "api" "./api" > documentation/en/api-v1-unstable-methods.md
+	./docgen-md "api/v0api/full.go" "FullNode" "v0api" "./api/v0api" > documentation/en/api-v0-methods.md
+docsgen-md-storage: docsgen-md-bin
+	./docgen-md "api/api_storage.go" "StorageMiner" "api" "./api" > documentation/en/api-v0-methods-miner.md
+docsgen-md-worker: docsgen-md-bin
+	./docgen-md "api/api_worker.go" "Worker" "api" "./api" > documentation/en/api-v0-methods-worker.md
+
+docsgen-openrpc: docsgen-openrpc-full docsgen-openrpc-storage docsgen-openrpc-worker
+
+docsgen-openrpc-full: docsgen-openrpc-bin
+	./docgen-openrpc "api/api_full.go" "FullNode" "api" "./api" -gzip > build/openrpc/full.json.gz
+docsgen-openrpc-storage: docsgen-openrpc-bin
+	./docgen-openrpc "api/api_storage.go" "StorageMiner" "api" "./api" -gzip > build/openrpc/miner.json.gz
+docsgen-openrpc-worker: docsgen-openrpc-bin
+	./docgen-openrpc "api/api_worker.go" "Worker" "api" "./api" -gzip > build/openrpc/worker.json.gz
+
+.PHONY: docsgen docsgen-md-bin docsgen-openrpc-bin
+
+gen: actors-gen type-gen method-gen docsgen api-gen
+.PHONY: gen

 print-%:
 	@echo $*=$($*)
@@ -10,7 +10,7 @@
  <a href="https://circleci.com/gh/filecoin-project/lotus"><img src="https://circleci.com/gh/filecoin-project/lotus.svg?style=svg"></a>
  <a href="https://codecov.io/gh/filecoin-project/lotus"><img src="https://codecov.io/gh/filecoin-project/lotus/branch/master/graph/badge.svg"></a>
  <a href="https://goreportcard.com/report/github.com/filecoin-project/lotus"><img src="https://goreportcard.com/badge/github.com/filecoin-project/lotus" /></a>  
-  <a href=""><img src="https://img.shields.io/badge/golang-%3E%3D1.14.7-blue.svg" /></a>
+  <a href=""><img src="https://img.shields.io/badge/golang-%3E%3D1.15.5-blue.svg" /></a>
  <br>
 </p>

@@ -24,24 +24,31 @@ For instructions on how to build, install and setup lotus, please visit [https:/

 Please send an email to security@filecoin.org. See our [security policy](SECURITY.md) for more details.

-## Development
+## Related packages

-The main branches under development at the moment are:
-* [`master`](https://github.com/filecoin-project/lotus): current testnet.
-* [`next`](https://github.com/filecoin-project/lotus/tree/next): working branch with chain-breaking changes.
-* [`ntwk-calibration`](https://github.com/filecoin-project/lotus/tree/ntwk-calibration): devnet running one of `next` commits.
+These repos are independent and reusable modules, but are tightly integrated into Lotus to make up a fully featured Filecoin implementation:

-### Tracker
-
-All work is tracked via issues. An attempt at keeping an up-to-date view on remaining work towards Mainnet launch can be seen at the [lotus github project board](https://github.com/orgs/filecoin-project/projects/8). The issues labeled with `incentives` are there to identify the issues needed for Space Race launch.
-
-### Packages
-
-The lotus Filecoin implementation unfolds into the following packages:
-
- [This repo](https://github.com/filecoin-project/lotus)
 - [go-fil-markets](https://github.com/filecoin-project/go-fil-markets) which has its own [kanban work tracker available here](https://app.zenhub.com/workspaces/markets-shared-components-5daa144a7046a60001c6e253/board)
- [spec-actors](https://github.com/filecoin-project/specs-actors) which has its own [kanban work tracker available here](https://app.zenhub.com/workspaces/actors-5ee6f3aa87591f0016c05685/board)
+- [specs-actors](https://github.com/filecoin-project/specs-actors) which has its own [kanban work tracker available here](https://app.zenhub.com/workspaces/actors-5ee6f3aa87591f0016c05685/board)
+
+## Contribute
+
+Lotus is a universally open project and welcomes contributions of all kinds: code, docs, and more. However, before making a contribution, we ask you to heed these recommendations:
+
+1. If the proposal entails a protocol change, please first submit a [Filecoin Improvement Proposal](https://github.com/filecoin-project/FIPs).
+2. If the change is complex and requires prior discussion, [open an issue](github.com/filecoin-project/lotus/issues) or a [discussion](https://github.com/filecoin-project/lotus/discussions) to request feedback before you start working on a pull request. This is to avoid disappointment and sunk costs, in case the change is not actually needed or accepted.
+3. Please refrain from submitting PRs to adapt existing code to subjective preferences. The changeset should contain functional or technical improvements/enhancements, bug fixes, new features, or some other clear material contribution. Simple stylistic changes are likely to be rejected in order to reduce code churn.
+
+When implementing a change:
+
+1. Adhere to the standard Go formatting guidelines, e.g. [Effective Go](https://golang.org/doc/effective_go.html). Run `go fmt`.
+2. Stick to the idioms and patterns used in the codebase. Familiar-looking code has a higher chance of being accepted than eerie code. Pay attention to commonly used variable and parameter names, avoidance of naked returns, error handling patterns, etc.
+3. Comments: follow the advice on the [Commentary](https://golang.org/doc/effective_go.html#commentary) section of Effective Go.
+4. Minimize code churn. Modify only what is strictly necessary. Well-encapsulated changesets will get a quicker response from maintainers.
+5. Lint your code with [`golangci-lint`](https://golangci-lint.run) (CI will reject your PR if unlinted).
+6. Add tests.
+7. Title the PR in a meaningful way and describe the rationale and the thought process in the PR description.
+8. Write clean, thoughtful, and detailed [commit messages](https://chris.beams.io/posts/git-commit/). This is even more important than the PR description, because commit messages are stored _inside_ the Git history. One good rule is: if you are happy posting the commit message as the PR description, then it's a good commit message.

 ## License

@@ -2,11 +2,11 @@

 ## Reporting a Vulnerability

-For *critical* bugs, please consult our Security Policy and Responsible Disclosure Program information at https://github.com/filecoin-project/community/blob/master/SECURITY.md
+For reporting security vulnerabilities/bugs, please consult our Security Policy and Responsible Disclosure Program information at https://github.com/filecoin-project/community/blob/master/SECURITY.md. Security vulnerabilities should be reported via our [Vulnerability Reporting channels](https://github.com/filecoin-project/community/blob/master/SECURITY.md#vulnerability-reporting) and will be eligible for a [Bug Bounty](https://security.filecoin.io/bug-bounty/).

 Please try to provide a clear description of any bugs reported, along with how to reproduce the bug if possible. More detailed bug reports (especially those with a PoC included) will help us move forward much faster. Additionally, please avoid reporting bugs that already have open issues. Take a moment to search the issue list of the related GitHub repositories before writing up a new report.

-Here are some examples of bugs we would consider 'critical':
+Here are some examples of bugs we would consider to be security vulnerabilities:

 * If you can spend from a `multisig` wallet you do not control the keys for.
 * If you can cause a miner to be slashed without them actually misbehaving.
@@ -16,8 +16,8 @@ Here are some examples of bugs we would consider 'critical':
 * If you can craft a message that causes a persistent fork in the network.
 * If you can cause the total amount of Filecoin in the network to no longer be 2 billion.

-This is not an exhaustive list, but should provide some idea of what we consider 'critical'.
+This is not an exhaustive list, but should provide some idea of what we consider as a security vulnerability, . 

 ## Reporting a non security bug

-For non-critical bugs, please simply file a GitHub [issue](https://github.com/filecoin-project/lotus/issues/new?template=bug_report.md). 
+For non-security bugs, please simply file a GitHub [issue](https://github.com/filecoin-project/lotus/issues/new?template=bug_report.md). 
@@ -0,0 +1,14 @@
+## Lotus API
+
+This package contains all lotus API definitions. Interfaces defined here are
+exposed as JsonRPC 2.0 endpoints by lotus programs.
+
+### Versions
+
+| File             | Alias File        | Interface      | Exposed by         | Version | HTTP Endpoint | Status                       | Docs
+|------------------|-------------------|----------------|--------------------|---------|---------------|------------------------------|------
+| `api_common.go`  | `v0api/latest.go` | `Common`       | lotus; lotus-miner | v0      | `/rpc/v0`     | Latest, Stable               | [Methods](../documentation/en/api-v0-methods.md)
+| `api_full.go`    | `v1api/latest.go` | `FullNode`     | lotus              | v1      | `/rpc/v1`     | Latest, **Work in progress** | [Methods](../documentation/en/api-v1-unstable-methods.md)
+| `api_storage.go` | `v0api/latest.go` | `StorageMiner` | lotus-miner        | v0      | `/rpc/v0`     | Latest, Stable               | [Methods](../documentation/en/api-v0-methods-miner.md)
+| `api_worker.go`  | `v0api/latest.go` | `Worker`       | lotus-worker       | v0      | `/rpc/v0`     | Latest, Stable               | [Methods](../documentation/en/api-v0-methods-worker.md)
+| `v0api/full.go`  |                   | `FullNode`     | lotus              | v0      | `/rpc/v0`     | Stable                       | [Methods](../documentation/en/api-v0-methods.md)
@@ -4,72 +4,97 @@ import (
 	"context"
 	"fmt"

+	"github.com/google/uuid"
+
 	"github.com/filecoin-project/go-jsonrpc/auth"
 	metrics "github.com/libp2p/go-libp2p-core/metrics"
 	"github.com/libp2p/go-libp2p-core/network"
 	"github.com/libp2p/go-libp2p-core/peer"
 	protocol "github.com/libp2p/go-libp2p-core/protocol"

-	"github.com/filecoin-project/lotus/build"
+	apitypes "github.com/filecoin-project/lotus/api/types"
 )

+//                       MODIFYING THE API INTERFACE
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
 type Common interface {

 	// MethodGroup: Auth

-	AuthVerify(ctx context.Context, token string) ([]auth.Permission, error)
-	AuthNew(ctx context.Context, perms []auth.Permission) ([]byte, error)
+	AuthVerify(ctx context.Context, token string) ([]auth.Permission, error) //perm:read
+	AuthNew(ctx context.Context, perms []auth.Permission) ([]byte, error)    //perm:admin

 	// MethodGroup: Net

-	NetConnectedness(context.Context, peer.ID) (network.Connectedness, error)
-	NetPeers(context.Context) ([]peer.AddrInfo, error)
-	NetConnect(context.Context, peer.AddrInfo) error
-	NetAddrsListen(context.Context) (peer.AddrInfo, error)
-	NetDisconnect(context.Context, peer.ID) error
-	NetFindPeer(context.Context, peer.ID) (peer.AddrInfo, error)
-	NetPubsubScores(context.Context) ([]PubsubScore, error)
-	NetAutoNatStatus(context.Context) (NatInfo, error)
-	NetAgentVersion(ctx context.Context, p peer.ID) (string, error)
+	NetConnectedness(context.Context, peer.ID) (network.Connectedness, error) //perm:read
+	NetPeers(context.Context) ([]peer.AddrInfo, error)                        //perm:read
+	NetConnect(context.Context, peer.AddrInfo) error                          //perm:write
+	NetAddrsListen(context.Context) (peer.AddrInfo, error)                    //perm:read
+	NetDisconnect(context.Context, peer.ID) error                             //perm:write
+	NetFindPeer(context.Context, peer.ID) (peer.AddrInfo, error)              //perm:read
+	NetPubsubScores(context.Context) ([]PubsubScore, error)                   //perm:read
+	NetAutoNatStatus(context.Context) (NatInfo, error)                        //perm:read
+	NetAgentVersion(ctx context.Context, p peer.ID) (string, error)           //perm:read
+	NetPeerInfo(context.Context, peer.ID) (*ExtendedPeerInfo, error)          //perm:read

 	// NetBandwidthStats returns statistics about the nodes total bandwidth
 	// usage and current rate across all peers and protocols.
-	NetBandwidthStats(ctx context.Context) (metrics.Stats, error)
+	NetBandwidthStats(ctx context.Context) (metrics.Stats, error) //perm:read

 	// NetBandwidthStatsByPeer returns statistics about the nodes bandwidth
 	// usage and current rate per peer
-	NetBandwidthStatsByPeer(ctx context.Context) (map[string]metrics.Stats, error)
+	NetBandwidthStatsByPeer(ctx context.Context) (map[string]metrics.Stats, error) //perm:read

 	// NetBandwidthStatsByProtocol returns statistics about the nodes bandwidth
 	// usage and current rate per protocol
-	NetBandwidthStatsByProtocol(ctx context.Context) (map[protocol.ID]metrics.Stats, error)
+	NetBandwidthStatsByProtocol(ctx context.Context) (map[protocol.ID]metrics.Stats, error) //perm:read
+
+	// ConnectionGater API
+	NetBlockAdd(ctx context.Context, acl NetBlockList) error    //perm:admin
+	NetBlockRemove(ctx context.Context, acl NetBlockList) error //perm:admin
+	NetBlockList(ctx context.Context) (NetBlockList, error)     //perm:read

 	// MethodGroup: Common

+	// Discover returns an OpenRPC document describing an RPC API.
+	Discover(ctx context.Context) (apitypes.OpenRPCDocument, error) //perm:read
+
 	// ID returns peerID of libp2p node backing this API
-	ID(context.Context) (peer.ID, error)
+	ID(context.Context) (peer.ID, error) //perm:read

 	// Version provides information about API provider
-	Version(context.Context) (Version, error)
+	Version(context.Context) (APIVersion, error) //perm:read

-	LogList(context.Context) ([]string, error)
-	LogSetLevel(context.Context, string, string) error
+	LogList(context.Context) ([]string, error)         //perm:write
+	LogSetLevel(context.Context, string, string) error //perm:write

 	// trigger graceful shutdown
-	Shutdown(context.Context) error
+	Shutdown(context.Context) error //perm:admin

-	Closing(context.Context) (<-chan struct{}, error)
+	// Session returns a random UUID of api provider session
+	Session(context.Context) (uuid.UUID, error) //perm:read
+
+	Closing(context.Context) (<-chan struct{}, error) //perm:read
 }

-// Version provides various build-time information
-type Version struct {
+// APIVersion provides various build-time information
+type APIVersion struct {
 	Version string

 	// APIVersion is a binary encoded semver version of the remote implementing
 	// this api
 	//
 	// See APIVersion in build/version.go
-	APIVersion build.Version
+	APIVersion Version

 	// TODO: git commit / os / genesis cid?

@@ -77,7 +102,7 @@ type Version struct {
 	BlockDelay uint64
 }

-func (v Version) String() string {
+func (v APIVersion) String() string {
 	return fmt.Sprintf("%s+api%s", v.Version, v.APIVersion.String())
 }

@@ -2,17 +2,16 @@ package api

 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"time"

-	datatransfer "github.com/filecoin-project/go-data-transfer"
-	"github.com/filecoin-project/go-state-types/network"
-
 	"github.com/ipfs/go-cid"
 	"github.com/libp2p/go-libp2p-core/peer"

 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-bitfield"
+	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-multistore"
@@ -20,17 +19,42 @@ import (
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/filecoin-project/go-state-types/dline"
+
+	apitypes "github.com/filecoin-project/lotus/api/types"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
-
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/power"
 	"github.com/filecoin-project/lotus/chain/types"
 	marketevents "github.com/filecoin-project/lotus/markets/loggers"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )

+//go:generate go run github.com/golang/mock/mockgen -destination=mocks/mock_full.go -package=mocks . FullNode
+
+// ChainIO abstracts operations for accessing raw IPLD objects.
+type ChainIO interface {
+	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
+	ChainHasObj(context.Context, cid.Cid) (bool, error)
+}
+
+const LookbackNoLimit = abi.ChainEpoch(-1)
+
+//                       MODIFYING THE API INTERFACE
+//
+// NOTE: This is the V1 (Unstable) API - to add methods to the V0 (Stable) API
+// you'll have to add those methods to interfaces in `api/v0api`
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
 // FullNode API is a low-level interface to the Filecoin network full node
 type FullNode interface {
 	Common
@@ -41,66 +65,78 @@ type FullNode interface {

 	// ChainNotify returns channel with chain head updates.
 	// First message is guaranteed to be of len == 1, and type == 'current'.
-	ChainNotify(context.Context) (<-chan []*HeadChange, error)
+	ChainNotify(context.Context) (<-chan []*HeadChange, error) //perm:read

 	// ChainHead returns the current head of the chain.
-	ChainHead(context.Context) (*types.TipSet, error)
+	ChainHead(context.Context) (*types.TipSet, error) //perm:read

 	// ChainGetRandomnessFromTickets is used to sample the chain for randomness.
-	ChainGetRandomnessFromTickets(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)
+	ChainGetRandomnessFromTickets(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error) //perm:read

 	// ChainGetRandomnessFromBeacon is used to sample the beacon for randomness.
-	ChainGetRandomnessFromBeacon(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)
+	ChainGetRandomnessFromBeacon(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error) //perm:read

 	// ChainGetBlock returns the block specified by the given CID.
-	ChainGetBlock(context.Context, cid.Cid) (*types.BlockHeader, error)
+	ChainGetBlock(context.Context, cid.Cid) (*types.BlockHeader, error) //perm:read
 	// ChainGetTipSet returns the tipset specified by the given TipSetKey.
-	ChainGetTipSet(context.Context, types.TipSetKey) (*types.TipSet, error)
+	ChainGetTipSet(context.Context, types.TipSetKey) (*types.TipSet, error) //perm:read

 	// ChainGetBlockMessages returns messages stored in the specified block.
-	ChainGetBlockMessages(ctx context.Context, blockCid cid.Cid) (*BlockMessages, error)
+	//
+	// Note: If there are multiple blocks in a tipset, it's likely that some
+	// messages will be duplicated. It's also possible for blocks in a tipset to have
+	// different messages from the same sender at the same nonce. When that happens,
+	// only the first message (in a block with lowest ticket) will be considered
+	// for execution
+	//
+	// NOTE: THIS METHOD SHOULD ONLY BE USED FOR GETTING MESSAGES IN A SPECIFIC BLOCK
+	//
+	// DO NOT USE THIS METHOD TO GET MESSAGES INCLUDED IN A TIPSET
+	// Use ChainGetParentMessages, which will perform correct message deduplication
+	ChainGetBlockMessages(ctx context.Context, blockCid cid.Cid) (*BlockMessages, error) //perm:read

 	// ChainGetParentReceipts returns receipts for messages in parent tipset of
-	// the specified block.
-	ChainGetParentReceipts(ctx context.Context, blockCid cid.Cid) ([]*types.MessageReceipt, error)
+	// the specified block. The receipts in the list returned is one-to-one with the
+	// messages returned by a call to ChainGetParentMessages with the same blockCid.
+	ChainGetParentReceipts(ctx context.Context, blockCid cid.Cid) ([]*types.MessageReceipt, error) //perm:read

 	// ChainGetParentMessages returns messages stored in parent tipset of the
 	// specified block.
-	ChainGetParentMessages(ctx context.Context, blockCid cid.Cid) ([]Message, error)
+	ChainGetParentMessages(ctx context.Context, blockCid cid.Cid) ([]Message, error) //perm:read

 	// ChainGetTipSetByHeight looks back for a tipset at the specified epoch.
 	// If there are no blocks at the specified epoch, a tipset at an earlier epoch
 	// will be returned.
-	ChainGetTipSetByHeight(context.Context, abi.ChainEpoch, types.TipSetKey) (*types.TipSet, error)
+	ChainGetTipSetByHeight(context.Context, abi.ChainEpoch, types.TipSetKey) (*types.TipSet, error) //perm:read

 	// ChainReadObj reads ipld nodes referenced by the specified CID from chain
 	// blockstore and returns raw bytes.
-	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
+	ChainReadObj(context.Context, cid.Cid) ([]byte, error) //perm:read

 	// ChainDeleteObj deletes node referenced by the given CID
-	ChainDeleteObj(context.Context, cid.Cid) error
+	ChainDeleteObj(context.Context, cid.Cid) error //perm:admin

 	// ChainHasObj checks if a given CID exists in the chain blockstore.
-	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainHasObj(context.Context, cid.Cid) (bool, error) //perm:read

 	// ChainStatObj returns statistics about the graph referenced by 'obj'.
 	// If 'base' is also specified, then the returned stat will be a diff
 	// between the two objects.
-	ChainStatObj(ctx context.Context, obj cid.Cid, base cid.Cid) (ObjStat, error)
+	ChainStatObj(ctx context.Context, obj cid.Cid, base cid.Cid) (ObjStat, error) //perm:read

 	// ChainSetHead forcefully sets current chain head. Use with caution.
-	ChainSetHead(context.Context, types.TipSetKey) error
+	ChainSetHead(context.Context, types.TipSetKey) error //perm:admin

 	// ChainGetGenesis returns the genesis tipset.
-	ChainGetGenesis(context.Context) (*types.TipSet, error)
+	ChainGetGenesis(context.Context) (*types.TipSet, error) //perm:read

 	// ChainTipSetWeight computes weight for the specified tipset.
-	ChainTipSetWeight(context.Context, types.TipSetKey) (types.BigInt, error)
-	ChainGetNode(ctx context.Context, p string) (*IpldObject, error)
+	ChainTipSetWeight(context.Context, types.TipSetKey) (types.BigInt, error) //perm:read
+	ChainGetNode(ctx context.Context, p string) (*IpldObject, error)          //perm:read

 	// ChainGetMessage reads a message referenced by the specified CID from the
 	// chain blockstore.
-	ChainGetMessage(context.Context, cid.Cid) (*types.Message, error)
+	ChainGetMessage(context.Context, cid.Cid) (*types.Message, error) //perm:read

 	// ChainGetPath returns a set of revert/apply operations needed to get from
 	// one tipset to another, for example:
@@ -115,14 +151,14 @@ type FullNode interface {
 	//     tRR
 	//```
 	// Would return `[revert(tBA), apply(tAB), apply(tAA)]`
-	ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*HeadChange, error)
+	ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*HeadChange, error) //perm:read

 	// ChainExport returns a stream of bytes with CAR dump of chain data.
 	// The exported chain data includes the header chain from the given tipset
 	// back to genesis, the entire genesis state, and the most recent 'nroots'
 	// state trees.
 	// If oldmsgskip is set, messages from before the requested roots are also not included.
-	ChainExport(ctx context.Context, nroots abi.ChainEpoch, oldmsgskip bool, tsk types.TipSetKey) (<-chan []byte, error)
+	ChainExport(ctx context.Context, nroots abi.ChainEpoch, oldmsgskip bool, tsk types.TipSetKey) (<-chan []byte, error) //perm:read

 	// MethodGroup: Beacon
 	// The Beacon method group contains methods for interacting with the random beacon (DRAND)
@@ -130,74 +166,74 @@ type FullNode interface {
 	// BeaconGetEntry returns the beacon entry for the given filecoin epoch. If
 	// the entry has not yet been produced, the call will block until the entry
 	// becomes available
-	BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error)
+	BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) //perm:read

 	// GasEstimateFeeCap estimates gas fee cap
-	GasEstimateFeeCap(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error)
+	GasEstimateFeeCap(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error) //perm:read

 	// GasEstimateGasLimit estimates gas used by the message and returns it.
 	// It fails if message fails to execute.
-	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error)
+	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error) //perm:read

 	// GasEstimateGasPremium estimates what gas price should be used for a
 	// message to have high likelihood of inclusion in `nblocksincl` epochs.

 	GasEstimateGasPremium(_ context.Context, nblocksincl uint64,
-		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
+		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) //perm:read

 	// GasEstimateMessageGas estimates gas values for unset message gas fields
-	GasEstimateMessageGas(context.Context, *types.Message, *MessageSendSpec, types.TipSetKey) (*types.Message, error)
+	GasEstimateMessageGas(context.Context, *types.Message, *MessageSendSpec, types.TipSetKey) (*types.Message, error) //perm:read

 	// MethodGroup: Sync
 	// The Sync method group contains methods for interacting with and
 	// observing the lotus sync service.

 	// SyncState returns the current status of the lotus sync system.
-	SyncState(context.Context) (*SyncState, error)
+	SyncState(context.Context) (*SyncState, error) //perm:read

 	// SyncSubmitBlock can be used to submit a newly created block to the.
 	// network through this node
-	SyncSubmitBlock(ctx context.Context, blk *types.BlockMsg) error
+	SyncSubmitBlock(ctx context.Context, blk *types.BlockMsg) error //perm:write

 	// SyncIncomingBlocks returns a channel streaming incoming, potentially not
 	// yet synced block headers.
-	SyncIncomingBlocks(ctx context.Context) (<-chan *types.BlockHeader, error)
+	SyncIncomingBlocks(ctx context.Context) (<-chan *types.BlockHeader, error) //perm:read

 	// SyncCheckpoint marks a blocks as checkpointed, meaning that it won't ever fork away from it.
-	SyncCheckpoint(ctx context.Context, tsk types.TipSetKey) error
+	SyncCheckpoint(ctx context.Context, tsk types.TipSetKey) error //perm:admin

 	// SyncMarkBad marks a blocks as bad, meaning that it won't ever by synced.
 	// Use with extreme caution.
-	SyncMarkBad(ctx context.Context, bcid cid.Cid) error
+	SyncMarkBad(ctx context.Context, bcid cid.Cid) error //perm:admin

 	// SyncUnmarkBad unmarks a blocks as bad, making it possible to be validated and synced again.
-	SyncUnmarkBad(ctx context.Context, bcid cid.Cid) error
+	SyncUnmarkBad(ctx context.Context, bcid cid.Cid) error //perm:admin

 	// SyncUnmarkAllBad purges bad block cache, making it possible to sync to chains previously marked as bad
-	SyncUnmarkAllBad(ctx context.Context) error
+	SyncUnmarkAllBad(ctx context.Context) error //perm:admin

 	// SyncCheckBad checks if a block was marked as bad, and if it was, returns
 	// the reason.
-	SyncCheckBad(ctx context.Context, bcid cid.Cid) (string, error)
+	SyncCheckBad(ctx context.Context, bcid cid.Cid) (string, error) //perm:read

 	// SyncValidateTipset indicates whether the provided tipset is valid or not
-	SyncValidateTipset(ctx context.Context, tsk types.TipSetKey) (bool, error)
+	SyncValidateTipset(ctx context.Context, tsk types.TipSetKey) (bool, error) //perm:read

 	// MethodGroup: Mpool
 	// The Mpool methods are for interacting with the message pool. The message pool
 	// manages all incoming and outgoing 'messages' going over the network.

 	// MpoolPending returns pending mempool messages.
-	MpoolPending(context.Context, types.TipSetKey) ([]*types.SignedMessage, error)
+	MpoolPending(context.Context, types.TipSetKey) ([]*types.SignedMessage, error) //perm:read

 	// MpoolSelect returns a list of pending messages for inclusion in the next block
-	MpoolSelect(context.Context, types.TipSetKey, float64) ([]*types.SignedMessage, error)
+	MpoolSelect(context.Context, types.TipSetKey, float64) ([]*types.SignedMessage, error) //perm:read

 	// MpoolPush pushes a signed message to mempool.
-	MpoolPush(context.Context, *types.SignedMessage) (cid.Cid, error)
+	MpoolPush(context.Context, *types.SignedMessage) (cid.Cid, error) //perm:write

 	// MpoolPushUntrusted pushes a signed message to mempool from untrusted sources.
-	MpoolPushUntrusted(context.Context, *types.SignedMessage) (cid.Cid, error)
+	MpoolPushUntrusted(context.Context, *types.SignedMessage) (cid.Cid, error) //perm:write

 	// MpoolPushMessage atomically assigns a nonce, signs, and pushes a message
 	// to mempool.
@@ -205,34 +241,34 @@ type FullNode interface {
 	//
 	// When maxFee is set to 0, MpoolPushMessage will guess appropriate fee
 	// based on current chain conditions
-	MpoolPushMessage(ctx context.Context, msg *types.Message, spec *MessageSendSpec) (*types.SignedMessage, error)
+	MpoolPushMessage(ctx context.Context, msg *types.Message, spec *MessageSendSpec) (*types.SignedMessage, error) //perm:sign

 	// MpoolBatchPush batch pushes a signed message to mempool.
-	MpoolBatchPush(context.Context, []*types.SignedMessage) ([]cid.Cid, error)
+	MpoolBatchPush(context.Context, []*types.SignedMessage) ([]cid.Cid, error) //perm:write

 	// MpoolBatchPushUntrusted batch pushes a signed message to mempool from untrusted sources.
-	MpoolBatchPushUntrusted(context.Context, []*types.SignedMessage) ([]cid.Cid, error)
+	MpoolBatchPushUntrusted(context.Context, []*types.SignedMessage) ([]cid.Cid, error) //perm:write

 	// MpoolBatchPushMessage batch pushes a unsigned message to mempool.
-	MpoolBatchPushMessage(context.Context, []*types.Message, *MessageSendSpec) ([]*types.SignedMessage, error)
+	MpoolBatchPushMessage(context.Context, []*types.Message, *MessageSendSpec) ([]*types.SignedMessage, error) //perm:sign

 	// MpoolGetNonce gets next nonce for the specified sender.
 	// Note that this method may not be atomic. Use MpoolPushMessage instead.
-	MpoolGetNonce(context.Context, address.Address) (uint64, error)
-	MpoolSub(context.Context) (<-chan MpoolUpdate, error)
+	MpoolGetNonce(context.Context, address.Address) (uint64, error) //perm:read
+	MpoolSub(context.Context) (<-chan MpoolUpdate, error)           //perm:read

 	// MpoolClear clears pending messages from the mpool
-	MpoolClear(context.Context, bool) error
+	MpoolClear(context.Context, bool) error //perm:write

 	// MpoolGetConfig returns (a copy of) the current mpool config
-	MpoolGetConfig(context.Context) (*types.MpoolConfig, error)
+	MpoolGetConfig(context.Context) (*types.MpoolConfig, error) //perm:read
 	// MpoolSetConfig sets the mpool config to (a copy of) the supplied config
-	MpoolSetConfig(context.Context, *types.MpoolConfig) error
+	MpoolSetConfig(context.Context, *types.MpoolConfig) error //perm:admin

 	// MethodGroup: Miner

-	MinerGetBaseInfo(context.Context, address.Address, abi.ChainEpoch, types.TipSetKey) (*MiningBaseInfo, error)
-	MinerCreateBlock(context.Context, *BlockTemplate) (*types.BlockMsg, error)
+	MinerGetBaseInfo(context.Context, address.Address, abi.ChainEpoch, types.TipSetKey) (*MiningBaseInfo, error) //perm:read
+	MinerCreateBlock(context.Context, *BlockTemplate) (*types.BlockMsg, error)                                   //perm:write

 	// // UX ?

@@ -241,32 +277,32 @@ type FullNode interface {
 	// WalletNew creates a new address in the wallet with the given sigType.
 	// Available key types: bls, secp256k1, secp256k1-ledger
 	// Support for numerical types: 1 - secp256k1, 2 - BLS is deprecated
-	WalletNew(context.Context, types.KeyType) (address.Address, error)
+	WalletNew(context.Context, types.KeyType) (address.Address, error) //perm:write
 	// WalletHas indicates whether the given address is in the wallet.
-	WalletHas(context.Context, address.Address) (bool, error)
+	WalletHas(context.Context, address.Address) (bool, error) //perm:write
 	// WalletList lists all the addresses in the wallet.
-	WalletList(context.Context) ([]address.Address, error)
+	WalletList(context.Context) ([]address.Address, error) //perm:write
 	// WalletBalance returns the balance of the given address at the current head of the chain.
-	WalletBalance(context.Context, address.Address) (types.BigInt, error)
+	WalletBalance(context.Context, address.Address) (types.BigInt, error) //perm:read
 	// WalletSign signs the given bytes using the given address.
-	WalletSign(context.Context, address.Address, []byte) (*crypto.Signature, error)
+	WalletSign(context.Context, address.Address, []byte) (*crypto.Signature, error) //perm:sign
 	// WalletSignMessage signs the given message using the given address.
-	WalletSignMessage(context.Context, address.Address, *types.Message) (*types.SignedMessage, error)
+	WalletSignMessage(context.Context, address.Address, *types.Message) (*types.SignedMessage, error) //perm:sign
 	// WalletVerify takes an address, a signature, and some bytes, and indicates whether the signature is valid.
 	// The address does not have to be in the wallet.
-	WalletVerify(context.Context, address.Address, []byte, *crypto.Signature) (bool, error)
+	WalletVerify(context.Context, address.Address, []byte, *crypto.Signature) (bool, error) //perm:read
 	// WalletDefaultAddress returns the address marked as default in the wallet.
-	WalletDefaultAddress(context.Context) (address.Address, error)
+	WalletDefaultAddress(context.Context) (address.Address, error) //perm:write
 	// WalletSetDefault marks the given address as as the default one.
-	WalletSetDefault(context.Context, address.Address) error
+	WalletSetDefault(context.Context, address.Address) error //perm:write
 	// WalletExport returns the private key of an address in the wallet.
-	WalletExport(context.Context, address.Address) (*types.KeyInfo, error)
+	WalletExport(context.Context, address.Address) (*types.KeyInfo, error) //perm:admin
 	// WalletImport receives a KeyInfo, which includes a private key, and imports it into the wallet.
-	WalletImport(context.Context, *types.KeyInfo) (address.Address, error)
+	WalletImport(context.Context, *types.KeyInfo) (address.Address, error) //perm:admin
 	// WalletDelete deletes an address from the wallet.
-	WalletDelete(context.Context, address.Address) error
+	WalletDelete(context.Context, address.Address) error //perm:admin
 	// WalletValidateAddress validates whether a given string can be decoded as a well-formed address
-	WalletValidateAddress(context.Context, string) (address.Address, error)
+	WalletValidateAddress(context.Context, string) (address.Address, error) //perm:read

 	// Other

@@ -275,192 +311,283 @@ type FullNode interface {
 	// retrieval markets as a client

 	// ClientImport imports file under the specified path into filestore.
-	ClientImport(ctx context.Context, ref FileRef) (*ImportRes, error)
+	ClientImport(ctx context.Context, ref FileRef) (*ImportRes, error) //perm:admin
 	// ClientRemoveImport removes file import
-	ClientRemoveImport(ctx context.Context, importID multistore.StoreID) error
+	ClientRemoveImport(ctx context.Context, importID multistore.StoreID) error //perm:admin
 	// ClientStartDeal proposes a deal with a miner.
-	ClientStartDeal(ctx context.Context, params *StartDealParams) (*cid.Cid, error)
+	ClientStartDeal(ctx context.Context, params *StartDealParams) (*cid.Cid, error) //perm:admin
 	// ClientGetDealInfo returns the latest information about a given deal.
-	ClientGetDealInfo(context.Context, cid.Cid) (*DealInfo, error)
+	ClientGetDealInfo(context.Context, cid.Cid) (*DealInfo, error) //perm:read
 	// ClientListDeals returns information about the deals made by the local client.
-	ClientListDeals(ctx context.Context) ([]DealInfo, error)
+	ClientListDeals(ctx context.Context) ([]DealInfo, error) //perm:write
 	// ClientGetDealUpdates returns the status of updated deals
-	ClientGetDealUpdates(ctx context.Context) (<-chan DealInfo, error)
+	ClientGetDealUpdates(ctx context.Context) (<-chan DealInfo, error) //perm:write
 	// ClientGetDealStatus returns status given a code
-	ClientGetDealStatus(ctx context.Context, statusCode uint64) (string, error)
+	ClientGetDealStatus(ctx context.Context, statusCode uint64) (string, error) //perm:read
 	// ClientHasLocal indicates whether a certain CID is locally stored.
-	ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error)
+	ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error) //perm:write
 	// ClientFindData identifies peers that have a certain file, and returns QueryOffers (one per peer).
-	ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]QueryOffer, error)
+	ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]QueryOffer, error) //perm:read
 	// ClientMinerQueryOffer returns a QueryOffer for the specific miner and file.
-	ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (QueryOffer, error)
+	ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (QueryOffer, error) //perm:read
 	// ClientRetrieve initiates the retrieval of a file, as specified in the order.
-	ClientRetrieve(ctx context.Context, order RetrievalOrder, ref *FileRef) error
+	ClientRetrieve(ctx context.Context, order RetrievalOrder, ref *FileRef) error //perm:admin
 	// ClientRetrieveWithEvents initiates the retrieval of a file, as specified in the order, and provides a channel
 	// of status updates.
-	ClientRetrieveWithEvents(ctx context.Context, order RetrievalOrder, ref *FileRef) (<-chan marketevents.RetrievalEvent, error)
+	ClientRetrieveWithEvents(ctx context.Context, order RetrievalOrder, ref *FileRef) (<-chan marketevents.RetrievalEvent, error) //perm:admin
 	// ClientQueryAsk returns a signed StorageAsk from the specified miner.
-	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error)
+	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) //perm:read
+	// ClientCalcCommP calculates the CommP and data size of the specified CID
+	ClientDealPieceCID(ctx context.Context, root cid.Cid) (DataCIDSize, error) //perm:read
 	// ClientCalcCommP calculates the CommP for a specified file
-	ClientCalcCommP(ctx context.Context, inpath string) (*CommPRet, error)
+	ClientCalcCommP(ctx context.Context, inpath string) (*CommPRet, error) //perm:write
 	// ClientGenCar generates a CAR file for the specified file.
-	ClientGenCar(ctx context.Context, ref FileRef, outpath string) error
+	ClientGenCar(ctx context.Context, ref FileRef, outpath string) error //perm:write
 	// ClientDealSize calculates real deal data size
-	ClientDealSize(ctx context.Context, root cid.Cid) (DataSize, error)
+	ClientDealSize(ctx context.Context, root cid.Cid) (DataSize, error) //perm:read
 	// ClientListTransfers returns the status of all ongoing transfers of data
-	ClientListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)
-	ClientDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error)
+	ClientListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)        //perm:write
+	ClientDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error) //perm:write
 	// ClientRestartDataTransfer attempts to restart a data transfer with the given transfer ID and other peer
-	ClientRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error
+	ClientRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
+	// ClientCancelDataTransfer cancels a data transfer with the given transfer ID and other peer
+	ClientCancelDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
 	// ClientRetrieveTryRestartInsufficientFunds attempts to restart stalled retrievals on a given payment channel
 	// which are stuck due to insufficient funds
-	ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error
+	ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error //perm:write
+
+	// ClientCancelRetrievalDeal cancels an ongoing retrieval deal based on DealID
+	ClientCancelRetrievalDeal(ctx context.Context, dealid retrievalmarket.DealID) error //perm:write

 	// ClientUnimport removes references to the specified file from filestore
 	//ClientUnimport(path string)

 	// ClientListImports lists imported files and their root CIDs
-	ClientListImports(ctx context.Context) ([]Import, error)
+	ClientListImports(ctx context.Context) ([]Import, error) //perm:write

 	//ClientListAsks() []Ask

 	// MethodGroup: State
 	// The State methods are used to query, inspect, and interact with chain state.
-	// Most methods take a TipSetKey as a parameter. The state looked up is the state at that tipset.
+	// Most methods take a TipSetKey as a parameter. The state looked up is the parent state of the tipset.
 	// A nil TipSetKey can be provided as a param, this will cause the heaviest tipset in the chain to be used.

 	// StateCall runs the given message and returns its result without any persisted changes.
-	StateCall(context.Context, *types.Message, types.TipSetKey) (*InvocResult, error)
+	//
+	// StateCall applies the message to the tipset's parent state. The
+	// message is not applied on-top-of the messages in the passed-in
+	// tipset.
+	StateCall(context.Context, *types.Message, types.TipSetKey) (*InvocResult, error) //perm:read
 	// StateReplay replays a given message, assuming it was included in a block in the specified tipset.
-	// If no tipset key is provided, the appropriate tipset is looked up.
-	StateReplay(context.Context, types.TipSetKey, cid.Cid) (*InvocResult, error)
+	//
+	// If a tipset key is provided, and a replacing message is found on chain,
+	// the method will return an error saying that the message wasn't found
+	//
+	// If no tipset key is provided, the appropriate tipset is looked up, and if
+	// the message was gas-repriced, the on-chain message will be replayed - in
+	// that case the returned InvocResult.MsgCid will not match the Cid param
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that InvocResult.MsgCid is equal to the provided Cid.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateReplay(context.Context, types.TipSetKey, cid.Cid) (*InvocResult, error) //perm:read
 	// StateGetActor returns the indicated actor's nonce and balance.
-	StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error)
+	StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error) //perm:read
 	// StateReadState returns the indicated actor's state.
-	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*ActorState, error)
+	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*ActorState, error) //perm:read
 	// StateListMessages looks back and returns all messages with a matching to or from address, stopping at the given height.
-	StateListMessages(ctx context.Context, match *MessageMatch, tsk types.TipSetKey, toht abi.ChainEpoch) ([]cid.Cid, error)
+	StateListMessages(ctx context.Context, match *MessageMatch, tsk types.TipSetKey, toht abi.ChainEpoch) ([]cid.Cid, error) //perm:read
+	// StateDecodeParams attempts to decode the provided params, based on the recipient actor address and method number.
+	StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error) //perm:read

 	// StateNetworkName returns the name of the network the node is synced to
-	StateNetworkName(context.Context) (dtypes.NetworkName, error)
+	StateNetworkName(context.Context) (dtypes.NetworkName, error) //perm:read
 	// StateMinerSectors returns info about the given miner's sectors. If the filter bitfield is nil, all sectors are included.
-	StateMinerSectors(context.Context, address.Address, *bitfield.BitField, types.TipSetKey) ([]*miner.SectorOnChainInfo, error)
+	StateMinerSectors(context.Context, address.Address, *bitfield.BitField, types.TipSetKey) ([]*miner.SectorOnChainInfo, error) //perm:read
 	// StateMinerActiveSectors returns info about sectors that a given miner is actively proving.
-	StateMinerActiveSectors(context.Context, address.Address, types.TipSetKey) ([]*miner.SectorOnChainInfo, error)
+	StateMinerActiveSectors(context.Context, address.Address, types.TipSetKey) ([]*miner.SectorOnChainInfo, error) //perm:read
 	// StateMinerProvingDeadline calculates the deadline at some epoch for a proving period
 	// and returns the deadline-related calculations.
-	StateMinerProvingDeadline(context.Context, address.Address, types.TipSetKey) (*dline.Info, error)
+	StateMinerProvingDeadline(context.Context, address.Address, types.TipSetKey) (*dline.Info, error) //perm:read
 	// StateMinerPower returns the power of the indicated miner
-	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error)
+	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error) //perm:read
 	// StateMinerInfo returns info about the indicated miner
-	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (miner.MinerInfo, error)
+	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (miner.MinerInfo, error) //perm:read
 	// StateMinerDeadlines returns all the proving deadlines for the given miner
-	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]Deadline, error)
+	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]Deadline, error) //perm:read
 	// StateMinerPartitions returns all partitions in the specified deadline
-	StateMinerPartitions(ctx context.Context, m address.Address, dlIdx uint64, tsk types.TipSetKey) ([]Partition, error)
+	StateMinerPartitions(ctx context.Context, m address.Address, dlIdx uint64, tsk types.TipSetKey) ([]Partition, error) //perm:read
 	// StateMinerFaults returns a bitfield indicating the faulty sectors of the given miner
-	StateMinerFaults(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error)
+	StateMinerFaults(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error) //perm:read
 	// StateAllMinerFaults returns all non-expired Faults that occur within lookback epochs of the given tipset
-	StateAllMinerFaults(ctx context.Context, lookback abi.ChainEpoch, ts types.TipSetKey) ([]*Fault, error)
+	StateAllMinerFaults(ctx context.Context, lookback abi.ChainEpoch, ts types.TipSetKey) ([]*Fault, error) //perm:read
 	// StateMinerRecoveries returns a bitfield indicating the recovering sectors of the given miner
-	StateMinerRecoveries(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error)
+	StateMinerRecoveries(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error) //perm:read
 	// StateMinerInitialPledgeCollateral returns the precommit deposit for the specified miner's sector
-	StateMinerPreCommitDepositForPower(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error)
+	StateMinerPreCommitDepositForPower(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error) //perm:read
 	// StateMinerInitialPledgeCollateral returns the initial pledge collateral for the specified miner's sector
-	StateMinerInitialPledgeCollateral(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error)
+	StateMinerInitialPledgeCollateral(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error) //perm:read
 	// StateMinerAvailableBalance returns the portion of a miner's balance that can be withdrawn or spent
-	StateMinerAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error)
+	StateMinerAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error) //perm:read
+	// StateMinerSectorAllocated checks if a sector is allocated
+	StateMinerSectorAllocated(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (bool, error) //perm:read
 	// StateSectorPreCommitInfo returns the PreCommit info for the specified miner's sector
-	StateSectorPreCommitInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error)
+	StateSectorPreCommitInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error) //perm:read
 	// StateSectorGetInfo returns the on-chain info for the specified miner's sector. Returns null in case the sector info isn't found
 	// NOTE: returned info.Expiration may not be accurate in some cases, use StateSectorExpiration to get accurate
 	// expiration epoch
-	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error)
+	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error) //perm:read
 	// StateSectorExpiration returns epoch at which given sector will expire
-	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorExpiration, error)
+	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorExpiration, error) //perm:read
 	// StateSectorPartition finds deadline/partition with the specified sector
-	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*miner.SectorLocation, error)
-	// StateSearchMsg searches for a message in the chain, and returns its receipt and the tipset where it was executed
-	StateSearchMsg(context.Context, cid.Cid) (*MsgLookup, error)
-	// StateWaitMsg looks back in the chain for a message. If not found, it blocks until the
-	// message arrives on chain, and gets to the indicated confidence depth.
-	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64) (*MsgLookup, error)
-	// StateWaitMsgLimited looks back up to limit epochs in the chain for a message.
+	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*miner.SectorLocation, error) //perm:read
+	// StateSearchMsg looks back up to limit epochs in the chain for a message, and returns its receipt and the tipset where it was executed
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they must check that MsgLookup.Message is equal to the provided 'cid', or set the
+	// `allowReplaced` parameter to false. Without this check, and with `allowReplaced`
+	// set to true, both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateSearchMsg(ctx context.Context, from types.TipSetKey, msg cid.Cid, limit abi.ChainEpoch, allowReplaced bool) (*MsgLookup, error) //perm:read
+	// StateWaitMsg looks back up to limit epochs in the chain for a message.
 	// If not found, it blocks until the message arrives on chain, and gets to the
 	// indicated confidence depth.
-	StateWaitMsgLimited(ctx context.Context, cid cid.Cid, confidence uint64, limit abi.ChainEpoch) (*MsgLookup, error)
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they must check that MsgLookup.Message is equal to the provided 'cid', or set the
+	// `allowReplaced` parameter to false. Without this check, and with `allowReplaced`
+	// set to true, both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64, limit abi.ChainEpoch, allowReplaced bool) (*MsgLookup, error) //perm:read
 	// StateListMiners returns the addresses of every miner that has claimed power in the Power Actor
-	StateListMiners(context.Context, types.TipSetKey) ([]address.Address, error)
+	StateListMiners(context.Context, types.TipSetKey) ([]address.Address, error) //perm:read
 	// StateListActors returns the addresses of every actor in the state
-	StateListActors(context.Context, types.TipSetKey) ([]address.Address, error)
+	StateListActors(context.Context, types.TipSetKey) ([]address.Address, error) //perm:read
 	// StateMarketBalance looks up the Escrow and Locked balances of the given address in the Storage Market
-	StateMarketBalance(context.Context, address.Address, types.TipSetKey) (MarketBalance, error)
+	StateMarketBalance(context.Context, address.Address, types.TipSetKey) (MarketBalance, error) //perm:read
 	// StateMarketParticipants returns the Escrow and Locked balances of every participant in the Storage Market
-	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]MarketBalance, error)
+	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]MarketBalance, error) //perm:read
 	// StateMarketDeals returns information about every deal in the Storage Market
-	StateMarketDeals(context.Context, types.TipSetKey) (map[string]MarketDeal, error)
+	StateMarketDeals(context.Context, types.TipSetKey) (map[string]MarketDeal, error) //perm:read
 	// StateMarketStorageDeal returns information about the indicated deal
-	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*MarketDeal, error)
+	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*MarketDeal, error) //perm:read
 	// StateLookupID retrieves the ID address of the given address
-	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error)
+	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
 	// StateAccountKey returns the public key address of the given ID address
-	StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error)
+	StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
 	// StateChangedActors returns all the actors whose states change between the two given state CIDs
 	// TODO: Should this take tipset keys instead?
-	StateChangedActors(context.Context, cid.Cid, cid.Cid) (map[string]types.Actor, error)
-	// StateGetReceipt returns the message receipt for the given message
-	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error)
+	StateChangedActors(context.Context, cid.Cid, cid.Cid) (map[string]types.Actor, error) //perm:read
 	// StateMinerSectorCount returns the number of sectors in a miner's sector set and proving set
-	StateMinerSectorCount(context.Context, address.Address, types.TipSetKey) (MinerSectors, error)
+	StateMinerSectorCount(context.Context, address.Address, types.TipSetKey) (MinerSectors, error) //perm:read
 	// StateCompute is a flexible command that applies the given messages on the given tipset.
 	// The messages are run as though the VM were at the provided height.
-	StateCompute(context.Context, abi.ChainEpoch, []*types.Message, types.TipSetKey) (*ComputeStateOutput, error)
+	//
+	// When called, StateCompute will:
+	// - Load the provided tipset, or use the current chain head if not provided
+	// - Compute the tipset state of the provided tipset on top of the parent state
+	//   - (note that this step runs before vmheight is applied to the execution)
+	//   - Execute state upgrade if any were scheduled at the epoch, or in null
+	//     blocks preceding the tipset
+	//   - Call the cron actor on null blocks preceding the tipset
+	//   - For each block in the tipset
+	//     - Apply messages in blocks in the specified
+	//     - Award block reward by calling the reward actor
+	//   - Call the cron actor for the current epoch
+	// - If the specified vmheight is higher than the current epoch, apply any
+	//   needed state upgrades to the state
+	// - Apply the specified messages to the state
+	//
+	// The vmheight parameter sets VM execution epoch, and can be used to simulate
+	// message execution in different network versions. If the specified vmheight
+	// epoch is higher than the epoch of the specified tipset, any state upgrades
+	// until the vmheight will be executed on the state before applying messages
+	// specified by the user.
+	//
+	// Note that the initial tipset state computation is not affected by the
+	// vmheight parameter - only the messages in the `apply` set are
+	//
+	// If the caller wants to simply compute the state, vmheight should be set to
+	// the epoch of the specified tipset.
+	//
+	// Messages in the `apply` parameter must have the correct nonces, and gas
+	// values set.
+	StateCompute(context.Context, abi.ChainEpoch, []*types.Message, types.TipSetKey) (*ComputeStateOutput, error) //perm:read
 	// StateVerifierStatus returns the data cap for the given address.
 	// Returns nil if there is no entry in the data cap table for the
 	// address.
-	StateVerifierStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error)
+	StateVerifierStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error) //perm:read
 	// StateVerifiedClientStatus returns the data cap for the given address.
 	// Returns nil if there is no entry in the data cap table for the
 	// address.
-	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error)
+	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error) //perm:read
 	// StateVerifiedClientStatus returns the address of the Verified Registry's root key
-	StateVerifiedRegistryRootKey(ctx context.Context, tsk types.TipSetKey) (address.Address, error)
+	StateVerifiedRegistryRootKey(ctx context.Context, tsk types.TipSetKey) (address.Address, error) //perm:read
 	// StateDealProviderCollateralBounds returns the min and max collateral a storage provider
 	// can issue. It takes the deal size and verified status as parameters.
-	StateDealProviderCollateralBounds(context.Context, abi.PaddedPieceSize, bool, types.TipSetKey) (DealCollateralBounds, error)
+	StateDealProviderCollateralBounds(context.Context, abi.PaddedPieceSize, bool, types.TipSetKey) (DealCollateralBounds, error) //perm:read

 	// StateCirculatingSupply returns the exact circulating supply of Filecoin at the given tipset.
 	// This is not used anywhere in the protocol itself, and is only for external consumption.
-	StateCirculatingSupply(context.Context, types.TipSetKey) (abi.TokenAmount, error)
+	StateCirculatingSupply(context.Context, types.TipSetKey) (abi.TokenAmount, error) //perm:read
 	// StateVMCirculatingSupplyInternal returns an approximation of the circulating supply of Filecoin at the given tipset.
 	// This is the value reported by the runtime interface to actors code.
-	StateVMCirculatingSupplyInternal(context.Context, types.TipSetKey) (CirculatingSupply, error)
+	StateVMCirculatingSupplyInternal(context.Context, types.TipSetKey) (CirculatingSupply, error) //perm:read
 	// StateNetworkVersion returns the network version at the given tipset
-	StateNetworkVersion(context.Context, types.TipSetKey) (network.Version, error)
+	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error) //perm:read

 	// MethodGroup: Msig
 	// The Msig methods are used to interact with multisig wallets on the
 	// filecoin network

 	// MsigGetAvailableBalance returns the portion of a multisig's balance that can be withdrawn or spent
-	MsigGetAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error)
+	MsigGetAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error) //perm:read
 	// MsigGetVestingSchedule returns the vesting details of a given multisig.
-	MsigGetVestingSchedule(context.Context, address.Address, types.TipSetKey) (MsigVesting, error)
+	MsigGetVestingSchedule(context.Context, address.Address, types.TipSetKey) (MsigVesting, error) //perm:read
 	// MsigGetVested returns the amount of FIL that vested in a multisig in a certain period.
 	// It takes the following params: <multisig address>, <start epoch>, <end epoch>
-	MsigGetVested(context.Context, address.Address, types.TipSetKey, types.TipSetKey) (types.BigInt, error)
+	MsigGetVested(context.Context, address.Address, types.TipSetKey, types.TipSetKey) (types.BigInt, error) //perm:read
+
+	//MsigGetPending returns pending transactions for the given multisig
+	//wallet. Once pending transactions are fully approved, they will no longer
+	//appear here.
+	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*MsigTransaction, error) //perm:read
+
 	// MsigCreate creates a multisig wallet
 	// It takes the following params: <required number of senders>, <approving addresses>, <unlock duration>
 	//<initial balance>, <sender address of the create msg>, <gas price>
-	MsigCreate(context.Context, uint64, []address.Address, abi.ChainEpoch, types.BigInt, address.Address, types.BigInt) (cid.Cid, error)
+	MsigCreate(context.Context, uint64, []address.Address, abi.ChainEpoch, types.BigInt, address.Address, types.BigInt) (cid.Cid, error) //perm:sign
 	// MsigPropose proposes a multisig message
 	// It takes the following params: <multisig address>, <recipient address>, <value to transfer>,
 	// <sender address of the propose msg>, <method to call in the proposed message>, <params to include in the proposed message>
-	MsigPropose(context.Context, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
+	MsigPropose(context.Context, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign

 	// MsigApprove approves a previously-proposed multisig message by transaction ID
 	// It takes the following params: <multisig address>, <proposed transaction ID> <signer address>
-	MsigApprove(context.Context, address.Address, uint64, address.Address) (cid.Cid, error)
+	MsigApprove(context.Context, address.Address, uint64, address.Address) (cid.Cid, error) //perm:sign

 	// MsigApproveTxnHash approves a previously-proposed multisig message, specified
 	// using both transaction ID and a hash of the parameters used in the
@@ -468,72 +595,80 @@ type FullNode interface {
 	// exactly the transaction you think you are.
 	// It takes the following params: <multisig address>, <proposed message ID>, <proposer address>, <recipient address>, <value to transfer>,
 	// <sender address of the approve msg>, <method to call in the proposed message>, <params to include in the proposed message>
-	MsigApproveTxnHash(context.Context, address.Address, uint64, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
+	MsigApproveTxnHash(context.Context, address.Address, uint64, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign

 	// MsigCancel cancels a previously-proposed multisig message
 	// It takes the following params: <multisig address>, <proposed transaction ID>, <recipient address>, <value to transfer>,
 	// <sender address of the cancel msg>, <method to call in the proposed message>, <params to include in the proposed message>
-	MsigCancel(context.Context, address.Address, uint64, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
+	MsigCancel(context.Context, address.Address, uint64, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign
 	// MsigAddPropose proposes adding a signer in the multisig
 	// It takes the following params: <multisig address>, <sender address of the propose msg>,
 	// <new signer>, <whether the number of required signers should be increased>
-	MsigAddPropose(context.Context, address.Address, address.Address, address.Address, bool) (cid.Cid, error)
+	MsigAddPropose(context.Context, address.Address, address.Address, address.Address, bool) (cid.Cid, error) //perm:sign
 	// MsigAddApprove approves a previously proposed AddSigner message
 	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
 	// <proposer address>, <new signer>, <whether the number of required signers should be increased>
-	MsigAddApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, bool) (cid.Cid, error)
+	MsigAddApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, bool) (cid.Cid, error) //perm:sign
 	// MsigAddCancel cancels a previously proposed AddSigner message
 	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
 	// <new signer>, <whether the number of required signers should be increased>
-	MsigAddCancel(context.Context, address.Address, address.Address, uint64, address.Address, bool) (cid.Cid, error)
+	MsigAddCancel(context.Context, address.Address, address.Address, uint64, address.Address, bool) (cid.Cid, error) //perm:sign
 	// MsigSwapPropose proposes swapping 2 signers in the multisig
 	// It takes the following params: <multisig address>, <sender address of the propose msg>,
 	// <old signer>, <new signer>
-	MsigSwapPropose(context.Context, address.Address, address.Address, address.Address, address.Address) (cid.Cid, error)
+	MsigSwapPropose(context.Context, address.Address, address.Address, address.Address, address.Address) (cid.Cid, error) //perm:sign
 	// MsigSwapApprove approves a previously proposed SwapSigner
 	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
 	// <proposer address>, <old signer>, <new signer>
-	MsigSwapApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, address.Address) (cid.Cid, error)
+	MsigSwapApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, address.Address) (cid.Cid, error) //perm:sign
 	// MsigSwapCancel cancels a previously proposed SwapSigner message
 	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
 	// <old signer>, <new signer>
-	MsigSwapCancel(context.Context, address.Address, address.Address, uint64, address.Address, address.Address) (cid.Cid, error)
+	MsigSwapCancel(context.Context, address.Address, address.Address, uint64, address.Address, address.Address) (cid.Cid, error) //perm:sign

 	// MsigRemoveSigner proposes the removal of a signer from the multisig.
 	// It accepts the multisig to make the change on, the proposer address to
 	// send the message from, the address to be removed, and a boolean
 	// indicating whether or not the signing threshold should be lowered by one
 	// along with the address removal.
-	MsigRemoveSigner(ctx context.Context, msig address.Address, proposer address.Address, toRemove address.Address, decrease bool) (cid.Cid, error)
+	MsigRemoveSigner(ctx context.Context, msig address.Address, proposer address.Address, toRemove address.Address, decrease bool) (cid.Cid, error) //perm:sign

-	MarketEnsureAvailable(context.Context, address.Address, address.Address, types.BigInt) (cid.Cid, error)
-	// MarketFreeBalance
+	// MarketAddBalance adds funds to the market actor
+	MarketAddBalance(ctx context.Context, wallet, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign
+	// MarketGetReserved gets the amount of funds that are currently reserved for the address
+	MarketGetReserved(ctx context.Context, addr address.Address) (types.BigInt, error) //perm:sign
+	// MarketReserveFunds reserves funds for a deal
+	MarketReserveFunds(ctx context.Context, wallet address.Address, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign
+	// MarketReleaseFunds releases funds reserved by MarketReserveFunds
+	MarketReleaseFunds(ctx context.Context, addr address.Address, amt types.BigInt) error //perm:sign
+	// MarketWithdraw withdraws unlocked funds from the market actor
+	MarketWithdraw(ctx context.Context, wallet, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign

 	// MethodGroup: Paych
 	// The Paych methods are for interacting with and managing payment channels

-	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)
-	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)
-	PaychAvailableFunds(ctx context.Context, ch address.Address) (*ChannelAvailableFunds, error)
-	PaychAvailableFundsByFromTo(ctx context.Context, from, to address.Address) (*ChannelAvailableFunds, error)
-	PaychList(context.Context) ([]address.Address, error)
-	PaychStatus(context.Context, address.Address) (*PaychStatus, error)
-	PaychSettle(context.Context, address.Address) (cid.Cid, error)
-	PaychCollect(context.Context, address.Address) (cid.Cid, error)
-	PaychAllocateLane(ctx context.Context, ch address.Address) (uint64, error)
-	PaychNewPayment(ctx context.Context, from, to address.Address, vouchers []VoucherSpec) (*PaymentInfo, error)
-	PaychVoucherCheckValid(context.Context, address.Address, *paych.SignedVoucher) error
-	PaychVoucherCheckSpendable(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (bool, error)
-	PaychVoucherCreate(context.Context, address.Address, types.BigInt, uint64) (*VoucherCreateResult, error)
-	PaychVoucherAdd(context.Context, address.Address, *paych.SignedVoucher, []byte, types.BigInt) (types.BigInt, error)
-	PaychVoucherList(context.Context, address.Address) ([]*paych.SignedVoucher, error)
-	PaychVoucherSubmit(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (cid.Cid, error)
+	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)                     //perm:sign
+	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)                                                //perm:sign
+	PaychAvailableFunds(ctx context.Context, ch address.Address) (*ChannelAvailableFunds, error)                        //perm:sign
+	PaychAvailableFundsByFromTo(ctx context.Context, from, to address.Address) (*ChannelAvailableFunds, error)          //perm:sign
+	PaychList(context.Context) ([]address.Address, error)                                                               //perm:read
+	PaychStatus(context.Context, address.Address) (*PaychStatus, error)                                                 //perm:read
+	PaychSettle(context.Context, address.Address) (cid.Cid, error)                                                      //perm:sign
+	PaychCollect(context.Context, address.Address) (cid.Cid, error)                                                     //perm:sign
+	PaychAllocateLane(ctx context.Context, ch address.Address) (uint64, error)                                          //perm:sign
+	PaychNewPayment(ctx context.Context, from, to address.Address, vouchers []VoucherSpec) (*PaymentInfo, error)        //perm:sign
+	PaychVoucherCheckValid(context.Context, address.Address, *paych.SignedVoucher) error                                //perm:read
+	PaychVoucherCheckSpendable(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (bool, error)    //perm:read
+	PaychVoucherCreate(context.Context, address.Address, types.BigInt, uint64) (*VoucherCreateResult, error)            //perm:sign
+	PaychVoucherAdd(context.Context, address.Address, *paych.SignedVoucher, []byte, types.BigInt) (types.BigInt, error) //perm:write
+	PaychVoucherList(context.Context, address.Address) ([]*paych.SignedVoucher, error)                                  //perm:write
+	PaychVoucherSubmit(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (cid.Cid, error)         //perm:sign

 	// CreateBackup creates node backup onder the specified file name. The
 	// method requires that the lotus daemon is running with the
 	// LOTUS_BACKUP_BASE_PATH environment variable set to some path, and that
 	// the path specified when calling CreateBackup is within the base path
-	CreateBackup(ctx context.Context, fpath string) error
+	CreateBackup(ctx context.Context, fpath string) error //perm:admin
 }

 type FileRef struct {
@@ -568,6 +703,7 @@ type DealInfo struct {
 	ProposalCid cid.Cid
 	State       storagemarket.StorageDealStatus
 	Message     string // more information about deal state, particularly errors
+	DealStages  *storagemarket.DealStages
 	Provider    address.Address

 	DataRef  *storagemarket.DataRef
@@ -581,6 +717,9 @@ type DealInfo struct {

 	CreationTime time.Time
 	Verified     bool
+
+	TransferChannelID *datatransfer.ChannelID
+	DataTransfer      *DataTransferChannel
 }

 type MsgLookup struct {
@@ -618,6 +757,7 @@ type Message struct {

 type ActorState struct {
 	Balance types.BigInt
+	Code    cid.Cid
 	State   interface{}
 }

@@ -719,7 +859,7 @@ func (o *QueryOffer) Order(client address.Address) RetrievalOrder {
 		Client:                  client,

 		Miner:     o.Miner,
-		MinerPeer: o.MinerPeer,
+		MinerPeer: &o.MinerPeer,
 	}
 }

@@ -738,6 +878,8 @@ type RetrievalOrder struct {
 	Root  cid.Cid
 	Piece *cid.Cid
 	Size  uint64
+
+	LocalStore *multistore.StoreID // if specified, get data from local store
 	// TODO: support offset
 	Total                   types.BigInt
 	UnsealPrice             types.BigInt
@@ -745,7 +887,7 @@ type RetrievalOrder struct {
 	PaymentIntervalIncrease uint64
 	Client                  address.Address
 	Miner                   address.Address
-	MinerPeer               retrievalmarket.RetrievalPeer
+	MinerPeer               *retrievalmarket.RetrievalPeer
 }

 type InvocResult struct {
@@ -775,14 +917,31 @@ type StartDealParams struct {
 	VerifiedDeal       bool
 }

+func (s *StartDealParams) UnmarshalJSON(raw []byte) (err error) {
+	type sdpAlias StartDealParams
+
+	sdp := sdpAlias{
+		FastRetrieval: true,
+	}
+
+	if err := json.Unmarshal(raw, &sdp); err != nil {
+		return err
+	}
+
+	*s = StartDealParams(sdp)
+
+	return nil
+}
+
 type IpldObject struct {
 	Cid cid.Cid
 	Obj interface{}
 }

 type ActiveSync struct {
-	Base   *types.TipSet
-	Target *types.TipSet
+	WorkerID uint64
+	Base     *types.TipSet
+	Target   *types.TipSet

 	Stage  SyncStateStage
 	Height abi.ChainEpoch
@@ -812,6 +971,8 @@ const (

 func (v SyncStateStage) String() string {
 	switch v {
+	case StageIdle:
+		return "idle"
 	case StageHeaders:
 		return "header sync"
 	case StagePersistHeaders:
@@ -852,11 +1013,12 @@ type DealCollateralBounds struct {
 }

 type CirculatingSupply struct {
-	FilVested      abi.TokenAmount
-	FilMined       abi.TokenAmount
-	FilBurnt       abi.TokenAmount
-	FilLocked      abi.TokenAmount
-	FilCirculating abi.TokenAmount
+	FilVested           abi.TokenAmount
+	FilMined            abi.TokenAmount
+	FilBurnt            abi.TokenAmount
+	FilLocked           abi.TokenAmount
+	FilCirculating      abi.TokenAmount
+	FilReserveDisbursed abi.TokenAmount
 }

 type MiningBaseInfo struct {
@@ -887,6 +1049,12 @@ type DataSize struct {
 	PieceSize   abi.PaddedPieceSize
 }

+type DataCIDSize struct {
+	PayloadSize int64
+	PieceSize   abi.PaddedPieceSize
+	PieceCID    cid.Cid
+}
+
 type CommPRet struct {
 	Root cid.Cid
 	Size abi.UnpaddedPieceSize
@@ -904,7 +1072,8 @@ const (
 )

 type Deadline struct {
-	PostSubmissions bitfield.BitField
+	PostSubmissions      bitfield.BitField
+	DisputableProofCount uint64
 }

 type Partition struct {
@@ -936,3 +1105,13 @@ type MessageMatch struct {
 	To   address.Address
 	From address.Address
 }
+
+type MsigTransaction struct {
+	ID     int64
+	To     address.Address
+	Value  abi.TokenAmount
+	Method abi.MethodNum
+	Params []byte
+
+	Approved []address.Address
+}
@@ -8,13 +8,27 @@ import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/dline"
-	"github.com/filecoin-project/go-state-types/network"

+	apitypes "github.com/filecoin-project/lotus/api/types"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 )

-type GatewayAPI interface {
+//                       MODIFYING THE API INTERFACE
+//
+// NOTE: This is the V1 (Unstable) API - to add methods to the V0 (Stable) API
+// you'll have to add those methods to interfaces in `api/v0api`
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
+type Gateway interface {
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
 	ChainHead(ctx context.Context) (*types.TipSet, error)
 	ChainGetBlockMessages(context.Context, cid.Cid) (*BlockMessages, error)
@@ -27,10 +41,10 @@ type GatewayAPI interface {
 	MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
 	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
 	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
+	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*MsigTransaction, error)
 	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (DealCollateralBounds, error)
 	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
-	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error)
 	StateListMiners(ctx context.Context, tsk types.TipSetKey) ([]address.Address, error)
 	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (MarketBalance, error)
@@ -38,7 +52,10 @@ type GatewayAPI interface {
 	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (miner.MinerInfo, error)
 	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error)
-	StateNetworkVersion(context.Context, types.TipSetKey) (network.Version, error)
+	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error)
+	StateSectorGetInfo(ctx context.Context, maddr address.Address, n abi.SectorNumber, tsk types.TipSetKey) (*miner.SectorOnChainInfo, error)
 	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error)
-	StateWaitMsg(ctx context.Context, msg cid.Cid, confidence uint64) (*MsgLookup, error)
+	StateSearchMsg(ctx context.Context, from types.TipSetKey, msg cid.Cid, limit abi.ChainEpoch, allowReplaced bool) (*MsgLookup, error)
+	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64, limit abi.ChainEpoch, allowReplaced bool) (*MsgLookup, error)
+	WalletBalance(context.Context, address.Address) (types.BigInt, error)
 }
@@ -5,110 +5,197 @@ import (
 	"context"
 	"time"

+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+
+	"github.com/google/uuid"
 	"github.com/ipfs/go-cid"
+	"github.com/libp2p/go-libp2p-core/peer"

 	"github.com/filecoin-project/go-address"
+	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-fil-markets/piecestore"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
+	"github.com/filecoin-project/specs-storage/storage"
+
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/extern/sector-storage/fsutil"
 	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
+	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
 )

+//                       MODIFYING THE API INTERFACE
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
 // StorageMiner is a low-level interface to the Filecoin network storage miner node
 type StorageMiner interface {
 	Common

-	ActorAddress(context.Context) (address.Address, error)
+	ActorAddress(context.Context) (address.Address, error) //perm:read

-	ActorSectorSize(context.Context, address.Address) (abi.SectorSize, error)
+	ActorSectorSize(context.Context, address.Address) (abi.SectorSize, error) //perm:read
+	ActorAddressConfig(ctx context.Context) (AddressConfig, error)            //perm:read

-	MiningBase(context.Context) (*types.TipSet, error)
+	MiningBase(context.Context) (*types.TipSet, error) //perm:read

 	// Temp api for testing
-	PledgeSector(context.Context) error
+	PledgeSector(context.Context) (abi.SectorID, error) //perm:write

 	// Get the status of a given sector by ID
-	SectorsStatus(ctx context.Context, sid abi.SectorNumber, showOnChainInfo bool) (SectorInfo, error)
+	SectorsStatus(ctx context.Context, sid abi.SectorNumber, showOnChainInfo bool) (SectorInfo, error) //perm:read

 	// List all staged sectors
-	SectorsList(context.Context) ([]abi.SectorNumber, error)
+	SectorsList(context.Context) ([]abi.SectorNumber, error) //perm:read

-	SectorsRefs(context.Context) (map[string][]SealedRef, error)
+	// Get summary info of sectors
+	SectorsSummary(ctx context.Context) (map[SectorState]int, error) //perm:read
+
+	// List sectors in particular states
+	SectorsListInStates(context.Context, []SectorState) ([]abi.SectorNumber, error) //perm:read
+
+	SectorsRefs(context.Context) (map[string][]SealedRef, error) //perm:read

 	// SectorStartSealing can be called on sectors in Empty or WaitDeals states
 	// to trigger sealing early
-	SectorStartSealing(context.Context, abi.SectorNumber) error
+	SectorStartSealing(context.Context, abi.SectorNumber) error //perm:write
 	// SectorSetSealDelay sets the time that a newly-created sector
 	// waits for more deals before it starts sealing
-	SectorSetSealDelay(context.Context, time.Duration) error
+	SectorSetSealDelay(context.Context, time.Duration) error //perm:write
 	// SectorGetSealDelay gets the time that a newly-created sector
 	// waits for more deals before it starts sealing
-	SectorGetSealDelay(context.Context) (time.Duration, error)
+	SectorGetSealDelay(context.Context) (time.Duration, error) //perm:read
 	// SectorSetExpectedSealDuration sets the expected time for a sector to seal
-	SectorSetExpectedSealDuration(context.Context, time.Duration) error
+	SectorSetExpectedSealDuration(context.Context, time.Duration) error //perm:write
 	// SectorGetExpectedSealDuration gets the expected time for a sector to seal
-	SectorGetExpectedSealDuration(context.Context) (time.Duration, error)
-	SectorsUpdate(context.Context, abi.SectorNumber, SectorState) error
-	SectorRemove(context.Context, abi.SectorNumber) error
-	SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber) error
-
-	StorageList(ctx context.Context) (map[stores.ID][]stores.Decl, error)
-	StorageLocal(ctx context.Context) (map[stores.ID]string, error)
-	StorageStat(ctx context.Context, id stores.ID) (fsutil.FsStat, error)
+	SectorGetExpectedSealDuration(context.Context) (time.Duration, error) //perm:read
+	SectorsUpdate(context.Context, abi.SectorNumber, SectorState) error   //perm:admin
+	// SectorRemove removes the sector from storage. It doesn't terminate it on-chain, which can
+	// be done with SectorTerminate. Removing and not terminating live sectors will cause additional penalties.
+	SectorRemove(context.Context, abi.SectorNumber) error //perm:admin
+	// SectorTerminate terminates the sector on-chain (adding it to a termination batch first), then
+	// automatically removes it from storage
+	SectorTerminate(context.Context, abi.SectorNumber) error //perm:admin
+	// SectorTerminateFlush immediately sends a terminate message with sectors batched for termination.
+	// Returns null if message wasn't sent
+	SectorTerminateFlush(ctx context.Context) (*cid.Cid, error) //perm:admin
+	// SectorTerminatePending returns a list of pending sector terminations to be sent in the next batch message
+	SectorTerminatePending(ctx context.Context) ([]abi.SectorID, error)  //perm:admin
+	SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber) error //perm:admin
+	// SectorPreCommitFlush immediately sends a PreCommit message with sectors batched for PreCommit.
+	// Returns null if message wasn't sent
+	SectorPreCommitFlush(ctx context.Context) ([]sealiface.PreCommitBatchRes, error) //perm:admin
+	// SectorPreCommitPending returns a list of pending PreCommit sectors to be sent in the next batch message
+	SectorPreCommitPending(ctx context.Context) ([]abi.SectorID, error) //perm:admin
+	// SectorCommitFlush immediately sends a Commit message with sectors aggregated for Commit.
+	// Returns null if message wasn't sent
+	SectorCommitFlush(ctx context.Context) ([]sealiface.CommitBatchRes, error) //perm:admin
+	// SectorCommitPending returns a list of pending Commit sectors to be sent in the next aggregate message
+	SectorCommitPending(ctx context.Context) ([]abi.SectorID, error) //perm:admin

 	// WorkerConnect tells the node to connect to workers RPC
-	WorkerConnect(context.Context, string) error
-	WorkerStats(context.Context) (map[uint64]storiface.WorkerStats, error)
-	WorkerJobs(context.Context) (map[uint64][]storiface.WorkerJob, error)
+	WorkerConnect(context.Context, string) error                              //perm:admin retry:true
+	WorkerStats(context.Context) (map[uuid.UUID]storiface.WorkerStats, error) //perm:admin
+	WorkerJobs(context.Context) (map[uuid.UUID][]storiface.WorkerJob, error)  //perm:admin
+
+	//storiface.WorkerReturn
+	ReturnAddPiece(ctx context.Context, callID storiface.CallID, pi abi.PieceInfo, err *storiface.CallError) error                //perm:admin retry:true
+	ReturnSealPreCommit1(ctx context.Context, callID storiface.CallID, p1o storage.PreCommit1Out, err *storiface.CallError) error //perm:admin retry:true
+	ReturnSealPreCommit2(ctx context.Context, callID storiface.CallID, sealed storage.SectorCids, err *storiface.CallError) error //perm:admin retry:true
+	ReturnSealCommit1(ctx context.Context, callID storiface.CallID, out storage.Commit1Out, err *storiface.CallError) error       //perm:admin retry:true
+	ReturnSealCommit2(ctx context.Context, callID storiface.CallID, proof storage.Proof, err *storiface.CallError) error          //perm:admin retry:true
+	ReturnFinalizeSector(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                            //perm:admin retry:true
+	ReturnReleaseUnsealed(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                           //perm:admin retry:true
+	ReturnMoveStorage(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                               //perm:admin retry:true
+	ReturnUnsealPiece(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                               //perm:admin retry:true
+	ReturnReadPiece(ctx context.Context, callID storiface.CallID, ok bool, err *storiface.CallError) error                        //perm:admin retry:true
+	ReturnFetch(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                     //perm:admin retry:true

 	// SealingSchedDiag dumps internal sealing scheduler state
-	SealingSchedDiag(context.Context) (interface{}, error)
+	SealingSchedDiag(ctx context.Context, doSched bool) (interface{}, error) //perm:admin
+	SealingAbort(ctx context.Context, call storiface.CallID) error           //perm:admin

-	stores.SectorIndex
+	//stores.SectorIndex
+	StorageAttach(context.Context, stores.StorageInfo, fsutil.FsStat) error                                                                                             //perm:admin
+	StorageInfo(context.Context, stores.ID) (stores.StorageInfo, error)                                                                                                 //perm:admin
+	StorageReportHealth(context.Context, stores.ID, stores.HealthReport) error                                                                                          //perm:admin
+	StorageDeclareSector(ctx context.Context, storageID stores.ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error                                     //perm:admin
+	StorageDropSector(ctx context.Context, storageID stores.ID, s abi.SectorID, ft storiface.SectorFileType) error                                                      //perm:admin
+	StorageFindSector(ctx context.Context, sector abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]stores.SectorStorageInfo, error) //perm:admin
+	StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]stores.StorageInfo, error)           //perm:admin
+	StorageLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) error                                          //perm:admin
+	StorageTryLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) (bool, error)                               //perm:admin

-	MarketImportDealData(ctx context.Context, propcid cid.Cid, path string) error
-	MarketListDeals(ctx context.Context) ([]MarketDeal, error)
-	MarketListRetrievalDeals(ctx context.Context) ([]retrievalmarket.ProviderDealState, error)
-	MarketGetDealUpdates(ctx context.Context) (<-chan storagemarket.MinerDeal, error)
-	MarketListIncompleteDeals(ctx context.Context) ([]storagemarket.MinerDeal, error)
-	MarketSetAsk(ctx context.Context, price types.BigInt, verifiedPrice types.BigInt, duration abi.ChainEpoch, minPieceSize abi.PaddedPieceSize, maxPieceSize abi.PaddedPieceSize) error
-	MarketGetAsk(ctx context.Context) (*storagemarket.SignedStorageAsk, error)
-	MarketSetRetrievalAsk(ctx context.Context, rask *retrievalmarket.Ask) error
-	MarketGetRetrievalAsk(ctx context.Context) (*retrievalmarket.Ask, error)
-	MarketListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)
-	MarketDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error)
+	StorageList(ctx context.Context) (map[stores.ID][]stores.Decl, error) //perm:admin
+	StorageLocal(ctx context.Context) (map[stores.ID]string, error)       //perm:admin
+	StorageStat(ctx context.Context, id stores.ID) (fsutil.FsStat, error) //perm:admin

-	DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error
-	DealsList(ctx context.Context) ([]MarketDeal, error)
-	DealsConsiderOnlineStorageDeals(context.Context) (bool, error)
-	DealsSetConsiderOnlineStorageDeals(context.Context, bool) error
-	DealsConsiderOnlineRetrievalDeals(context.Context) (bool, error)
-	DealsSetConsiderOnlineRetrievalDeals(context.Context, bool) error
-	DealsPieceCidBlocklist(context.Context) ([]cid.Cid, error)
-	DealsSetPieceCidBlocklist(context.Context, []cid.Cid) error
-	DealsConsiderOfflineStorageDeals(context.Context) (bool, error)
-	DealsSetConsiderOfflineStorageDeals(context.Context, bool) error
-	DealsConsiderOfflineRetrievalDeals(context.Context) (bool, error)
-	DealsSetConsiderOfflineRetrievalDeals(context.Context, bool) error
+	MarketImportDealData(ctx context.Context, propcid cid.Cid, path string) error                                                                                                        //perm:write
+	MarketListDeals(ctx context.Context) ([]MarketDeal, error)                                                                                                                           //perm:read
+	MarketListRetrievalDeals(ctx context.Context) ([]retrievalmarket.ProviderDealState, error)                                                                                           //perm:read
+	MarketGetDealUpdates(ctx context.Context) (<-chan storagemarket.MinerDeal, error)                                                                                                    //perm:read
+	MarketListIncompleteDeals(ctx context.Context) ([]storagemarket.MinerDeal, error)                                                                                                    //perm:read
+	MarketSetAsk(ctx context.Context, price types.BigInt, verifiedPrice types.BigInt, duration abi.ChainEpoch, minPieceSize abi.PaddedPieceSize, maxPieceSize abi.PaddedPieceSize) error //perm:admin
+	MarketGetAsk(ctx context.Context) (*storagemarket.SignedStorageAsk, error)                                                                                                           //perm:read
+	MarketSetRetrievalAsk(ctx context.Context, rask *retrievalmarket.Ask) error                                                                                                          //perm:admin
+	MarketGetRetrievalAsk(ctx context.Context) (*retrievalmarket.Ask, error)                                                                                                             //perm:read
+	MarketListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)                                                                                                          //perm:write
+	MarketDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error)                                                                                                   //perm:write
+	// MarketRestartDataTransfer attempts to restart a data transfer with the given transfer ID and other peer
+	MarketRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
+	// MarketCancelDataTransfer cancels a data transfer with the given transfer ID and other peer
+	MarketCancelDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
+	MarketPendingDeals(ctx context.Context) (PendingDealInfo, error)                                                             //perm:write
+	MarketPublishPendingDeals(ctx context.Context) error                                                                         //perm:admin

-	StorageAddLocal(ctx context.Context, path string) error
+	DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error //perm:admin
+	DealsList(ctx context.Context) ([]MarketDeal, error)                         //perm:admin
+	DealsConsiderOnlineStorageDeals(context.Context) (bool, error)               //perm:admin
+	DealsSetConsiderOnlineStorageDeals(context.Context, bool) error              //perm:admin
+	DealsConsiderOnlineRetrievalDeals(context.Context) (bool, error)             //perm:admin
+	DealsSetConsiderOnlineRetrievalDeals(context.Context, bool) error            //perm:admin
+	DealsPieceCidBlocklist(context.Context) ([]cid.Cid, error)                   //perm:admin
+	DealsSetPieceCidBlocklist(context.Context, []cid.Cid) error                  //perm:admin
+	DealsConsiderOfflineStorageDeals(context.Context) (bool, error)              //perm:admin
+	DealsSetConsiderOfflineStorageDeals(context.Context, bool) error             //perm:admin
+	DealsConsiderOfflineRetrievalDeals(context.Context) (bool, error)            //perm:admin
+	DealsSetConsiderOfflineRetrievalDeals(context.Context, bool) error           //perm:admin
+	DealsConsiderVerifiedStorageDeals(context.Context) (bool, error)             //perm:admin
+	DealsSetConsiderVerifiedStorageDeals(context.Context, bool) error            //perm:admin
+	DealsConsiderUnverifiedStorageDeals(context.Context) (bool, error)           //perm:admin
+	DealsSetConsiderUnverifiedStorageDeals(context.Context, bool) error          //perm:admin

-	PiecesListPieces(ctx context.Context) ([]cid.Cid, error)
-	PiecesListCidInfos(ctx context.Context) ([]cid.Cid, error)
-	PiecesGetPieceInfo(ctx context.Context, pieceCid cid.Cid) (*piecestore.PieceInfo, error)
-	PiecesGetCIDInfo(ctx context.Context, payloadCid cid.Cid) (*piecestore.CIDInfo, error)
+	StorageAddLocal(ctx context.Context, path string) error //perm:admin
+
+	PiecesListPieces(ctx context.Context) ([]cid.Cid, error)                                 //perm:read
+	PiecesListCidInfos(ctx context.Context) ([]cid.Cid, error)                               //perm:read
+	PiecesGetPieceInfo(ctx context.Context, pieceCid cid.Cid) (*piecestore.PieceInfo, error) //perm:read
+	PiecesGetCIDInfo(ctx context.Context, payloadCid cid.Cid) (*piecestore.CIDInfo, error)   //perm:read

 	// CreateBackup creates node backup onder the specified file name. The
 	// method requires that the lotus-miner is running with the
 	// LOTUS_BACKUP_BASE_PATH environment variable set to some path, and that
 	// the path specified when calling CreateBackup is within the base path
-	CreateBackup(ctx context.Context, fpath string) error
+	CreateBackup(ctx context.Context, fpath string) error //perm:admin
+
+	CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, expensive bool) (map[abi.SectorNumber]string, error) //perm:admin
+
+	ComputeProof(ctx context.Context, ssi []builtin.SectorInfo, rand abi.PoStRandomness) ([]builtin.PoStProof, error) //perm:read
 }

+var _ storiface.WorkerReturn = *new(StorageMiner)
+var _ stores.SectorIndex = *new(StorageMiner)
+
 type SealRes struct {
 	Err   string
 	GoErr error `json:"-"`
@@ -186,3 +273,30 @@ func (st *SealSeed) Equals(ost *SealSeed) bool {
 }

 type SectorState string
+
+type AddrUse int
+
+const (
+	PreCommitAddr AddrUse = iota
+	CommitAddr
+	PoStAddr
+
+	TerminateSectorsAddr
+)
+
+type AddressConfig struct {
+	PreCommitControl []address.Address
+	CommitControl    []address.Address
+	TerminateControl []address.Address
+
+	DisableOwnerFallback  bool
+	DisableWorkerFallback bool
+}
+
+// PendingDealInfo has info about pending deals and when they are due to be
+// published
+type PendingDealInfo struct {
+	Deals              []market.ClientDealProposal
+	PublishPeriodStart time.Time
+	PublishPeriod      time.Duration
+}
@@ -37,6 +37,18 @@ func TestDoesntDependOnFFI(t *testing.T) {
 	}
 }

+func TestDoesntDependOnBuild(t *testing.T) {
+	deps, err := exec.Command(goCmd(), "list", "-deps", "github.com/filecoin-project/lotus/api").Output()
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, pkg := range strings.Fields(string(deps)) {
+		if pkg == "github.com/filecoin-project/build" {
+			t.Fatal("api depends on filecoin-ffi")
+		}
+	}
+}
+
 func TestReturnTypes(t *testing.T) {
 	errType := reflect.TypeOf(new(error)).Elem()
 	bareIface := reflect.TypeOf(new(interface{})).Elem()
@@ -99,5 +111,11 @@ func TestReturnTypes(t *testing.T) {
 	t.Run("common", tst(new(Common)))
 	t.Run("full", tst(new(FullNode)))
 	t.Run("miner", tst(new(StorageMiner)))
-	t.Run("worker", tst(new(WorkerAPI)))
+	t.Run("worker", tst(new(Worker)))
+}
+
+func TestPermTags(t *testing.T) {
+	_ = PermissionedFullAPI(&FullNodeStruct{})
+	_ = PermissionedStorMinerAPI(&StorageMinerStruct{})
+	_ = PermissionedWorkerAPI(&WorkerStruct{})
 }
@@ -34,7 +34,7 @@ type MsgMeta struct {
 	Extra []byte
 }

-type WalletAPI interface {
+type Wallet interface {
 	WalletNew(context.Context, types.KeyType) (address.Address, error)
 	WalletHas(context.Context, address.Address) (bool, error)
 	WalletList(context.Context) ([]address.Address, error)
@@ -4,6 +4,7 @@ import (
 	"context"
 	"io"

+	"github.com/google/uuid"
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/go-state-types/abi"
@@ -11,30 +12,63 @@ import (
 	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	"github.com/filecoin-project/specs-storage/storage"
-
-	"github.com/filecoin-project/lotus/build"
 )

-type WorkerAPI interface {
-	Version(context.Context) (build.Version, error)
-	// TODO: Info() (name, ...) ?
+//                       MODIFYING THE API INTERFACE
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs

-	TaskTypes(context.Context) (map[sealtasks.TaskType]struct{}, error) // TaskType -> Weight
-	Paths(context.Context) ([]stores.StoragePath, error)
-	Info(context.Context) (storiface.WorkerInfo, error)
+type Worker interface {
+	Version(context.Context) (Version, error) //perm:admin

-	AddPiece(ctx context.Context, sector abi.SectorID, pieceSizes []abi.UnpaddedPieceSize, newPieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (abi.PieceInfo, error)
+	// TaskType -> Weight
+	TaskTypes(context.Context) (map[sealtasks.TaskType]struct{}, error) //perm:admin
+	Paths(context.Context) ([]stores.StoragePath, error)                //perm:admin
+	Info(context.Context) (storiface.WorkerInfo, error)                 //perm:admin

-	storage.Sealer
+	// storiface.WorkerCalls
+	AddPiece(ctx context.Context, sector storage.SectorRef, pieceSizes []abi.UnpaddedPieceSize, newPieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (storiface.CallID, error)                    //perm:admin
+	SealPreCommit1(ctx context.Context, sector storage.SectorRef, ticket abi.SealRandomness, pieces []abi.PieceInfo) (storiface.CallID, error)                                                           //perm:admin
+	SealPreCommit2(ctx context.Context, sector storage.SectorRef, pc1o storage.PreCommit1Out) (storiface.CallID, error)                                                                                  //perm:admin
+	SealCommit1(ctx context.Context, sector storage.SectorRef, ticket abi.SealRandomness, seed abi.InteractiveSealRandomness, pieces []abi.PieceInfo, cids storage.SectorCids) (storiface.CallID, error) //perm:admin
+	SealCommit2(ctx context.Context, sector storage.SectorRef, c1o storage.Commit1Out) (storiface.CallID, error)                                                                                         //perm:admin
+	FinalizeSector(ctx context.Context, sector storage.SectorRef, keepUnsealed []storage.Range) (storiface.CallID, error)                                                                                //perm:admin
+	ReleaseUnsealed(ctx context.Context, sector storage.SectorRef, safeToFree []storage.Range) (storiface.CallID, error)                                                                                 //perm:admin
+	MoveStorage(ctx context.Context, sector storage.SectorRef, types storiface.SectorFileType) (storiface.CallID, error)                                                                                 //perm:admin
+	UnsealPiece(context.Context, storage.SectorRef, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize, abi.SealRandomness, cid.Cid) (storiface.CallID, error)                                           //perm:admin
+	ReadPiece(context.Context, io.Writer, storage.SectorRef, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize) (storiface.CallID, error)                                                               //perm:admin
+	Fetch(context.Context, storage.SectorRef, storiface.SectorFileType, storiface.PathType, storiface.AcquireMode) (storiface.CallID, error)                                                             //perm:admin

-	MoveStorage(ctx context.Context, sector abi.SectorID, types stores.SectorFileType) error
+	TaskDisable(ctx context.Context, tt sealtasks.TaskType) error //perm:admin
+	TaskEnable(ctx context.Context, tt sealtasks.TaskType) error  //perm:admin

-	UnsealPiece(context.Context, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize, abi.SealRandomness, cid.Cid) error
-	ReadPiece(context.Context, io.Writer, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize) (bool, error)
+	// Storage / Other
+	Remove(ctx context.Context, sector abi.SectorID) error //perm:admin

-	StorageAddLocal(ctx context.Context, path string) error
+	StorageAddLocal(ctx context.Context, path string) error //perm:admin

-	Fetch(context.Context, abi.SectorID, stores.SectorFileType, stores.PathType, stores.AcquireMode) error
+	// SetEnabled marks the worker as enabled/disabled. Not that this setting
+	// may take a few seconds to propagate to task scheduler
+	SetEnabled(ctx context.Context, enabled bool) error //perm:admin

-	Closing(context.Context) (<-chan struct{}, error)
+	Enabled(ctx context.Context) (bool, error) //perm:admin
+
+	// WaitQuiet blocks until there are no tasks running
+	WaitQuiet(ctx context.Context) error //perm:admin
+
+	// returns a random UUID of worker session, generated randomly when worker
+	// process starts
+	ProcessSession(context.Context) (uuid.UUID, error) //perm:admin
+
+	// Like ProcessSession, but returns an error when worker is disabled
+	Session(context.Context) (uuid.UUID, error) //perm:admin
 }
+
+var _ storiface.WorkerCalls = *new(Worker)
@@ -1,68 +0,0 @@
-package apibstore
-
-import (
-	"context"
-
-	blocks "github.com/ipfs/go-block-format"
-	"github.com/ipfs/go-cid"
-	"golang.org/x/xerrors"
-
-	"github.com/filecoin-project/lotus/lib/blockstore"
-)
-
-type ChainIO interface {
-	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
-	ChainHasObj(context.Context, cid.Cid) (bool, error)
-}
-
-type apiBStore struct {
-	api ChainIO
-}
-
-func NewAPIBlockstore(cio ChainIO) blockstore.Blockstore {
-	return &apiBStore{
-		api: cio,
-	}
-}
-
-func (a *apiBStore) DeleteBlock(cid.Cid) error {
-	return xerrors.New("not supported")
-}
-
-func (a *apiBStore) Has(c cid.Cid) (bool, error) {
-	return a.api.ChainHasObj(context.TODO(), c)
-}
-
-func (a *apiBStore) Get(c cid.Cid) (blocks.Block, error) {
-	bb, err := a.api.ChainReadObj(context.TODO(), c)
-	if err != nil {
-		return nil, err
-	}
-	return blocks.NewBlockWithCid(bb, c)
-}
-
-func (a *apiBStore) GetSize(c cid.Cid) (int, error) {
-	bb, err := a.api.ChainReadObj(context.TODO(), c)
-	if err != nil {
-		return 0, err
-	}
-	return len(bb), nil
-}
-
-func (a *apiBStore) Put(blocks.Block) error {
-	return xerrors.New("not supported")
-}
-
-func (a *apiBStore) PutMany([]blocks.Block) error {
-	return xerrors.New("not supported")
-}
-
-func (a *apiBStore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
-	return nil, xerrors.New("not supported")
-}
-
-func (a *apiBStore) HashOnRead(enabled bool) {
-	return
-}
-
-var _ blockstore.Blockstore = &apiBStore{}
@@ -1,9 +0,0 @@
-package apistruct
-
-import "testing"
-
-func TestPermTags(t *testing.T) {
-	_ = PermissionedFullAPI(&FullNodeStruct{})
-	_ = PermissionedStorMinerAPI(&StorageMinerStruct{})
-	_ = PermissionedWorkerAPI(&WorkerStruct{})
-}
@@ -5,14 +5,18 @@ package api
 import (
 	"fmt"
 	"io"
+	"sort"

 	abi "github.com/filecoin-project/go-state-types/abi"
 	paych "github.com/filecoin-project/specs-actors/actors/builtin/paych"
+	cid "github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
 )

 var _ = xerrors.Errorf
+var _ = cid.Undef
+var _ = sort.Sort

 func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 	if t == nil {
@@ -171,7 +175,8 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 			}

 		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
+			// Field doesn't exist on this type, so ignore it
+			cbg.ScanForLinks(r, func(cid.Cid) {})
 		}
 	}

@@ -319,7 +324,8 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {
 			}

 		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
+			// Field doesn't exist on this type, so ignore it
+			cbg.ScanForLinks(r, func(cid.Cid) {})
 		}
 	}

@@ -427,7 +433,8 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) error {
 			}

 		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
+			// Field doesn't exist on this type, so ignore it
+			cbg.ScanForLinks(r, func(cid.Cid) {})
 		}
 	}

@@ -575,7 +582,8 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) error {
 			}

 		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
+			// Field doesn't exist on this type, so ignore it
+			cbg.ScanForLinks(r, func(cid.Cid) {})
 		}
 	}

@@ -723,7 +731,8 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) error {
 			}

 		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
+			// Field doesn't exist on this type, so ignore it
+			cbg.ScanForLinks(r, func(cid.Cid) {})
 		}
 	}

@@ -10,13 +10,14 @@ import (
 	"github.com/filecoin-project/go-jsonrpc"

 	"github.com/filecoin-project/lotus/api"
-	"github.com/filecoin-project/lotus/api/apistruct"
+	"github.com/filecoin-project/lotus/api/v0api"
+	"github.com/filecoin-project/lotus/api/v1api"
 	"github.com/filecoin-project/lotus/lib/rpcenc"
 )

-// NewCommonRPC creates a new http jsonrpc client.
-func NewCommonRPC(ctx context.Context, addr string, requestHeader http.Header) (api.Common, jsonrpc.ClientCloser, error) {
-	var res apistruct.CommonStruct
+// NewCommonRPCV0 creates a new http jsonrpc client.
+func NewCommonRPCV0(ctx context.Context, addr string, requestHeader http.Header) (api.Common, jsonrpc.ClientCloser, error) {
+	var res v0api.CommonStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.Internal,
@@ -27,9 +28,9 @@ func NewCommonRPC(ctx context.Context, addr string, requestHeader http.Header) (
 	return &res, closer, err
 }

-// NewFullNodeRPC creates a new http jsonrpc client.
-func NewFullNodeRPC(ctx context.Context, addr string, requestHeader http.Header) (api.FullNode, jsonrpc.ClientCloser, error) {
-	var res apistruct.FullNodeStruct
+// NewFullNodeRPCV0 creates a new http jsonrpc client.
+func NewFullNodeRPCV0(ctx context.Context, addr string, requestHeader http.Header) (v0api.FullNode, jsonrpc.ClientCloser, error) {
+	var res v0api.FullNodeStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.CommonStruct.Internal,
@@ -39,9 +40,21 @@ func NewFullNodeRPC(ctx context.Context, addr string, requestHeader http.Header)
 	return &res, closer, err
 }

-// NewStorageMinerRPC creates a new http jsonrpc client for miner
-func NewStorageMinerRPC(ctx context.Context, addr string, requestHeader http.Header, opts ...jsonrpc.Option) (api.StorageMiner, jsonrpc.ClientCloser, error) {
-	var res apistruct.StorageMinerStruct
+// NewFullNodeRPCV1 creates a new http jsonrpc client.
+func NewFullNodeRPCV1(ctx context.Context, addr string, requestHeader http.Header) (api.FullNode, jsonrpc.ClientCloser, error) {
+	var res v1api.FullNodeStruct
+	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
+		[]interface{}{
+			&res.CommonStruct.Internal,
+			&res.Internal,
+		}, requestHeader)
+
+	return &res, closer, err
+}
+
+// NewStorageMinerRPCV0 creates a new http jsonrpc client for miner
+func NewStorageMinerRPCV0(ctx context.Context, addr string, requestHeader http.Header, opts ...jsonrpc.Option) (v0api.StorageMiner, jsonrpc.ClientCloser, error) {
+	var res v0api.StorageMinerStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.CommonStruct.Internal,
@@ -54,7 +67,7 @@ func NewStorageMinerRPC(ctx context.Context, addr string, requestHeader http.Hea
 	return &res, closer, err
 }

-func NewWorkerRPC(ctx context.Context, addr string, requestHeader http.Header) (api.WorkerAPI, jsonrpc.ClientCloser, error) {
+func NewWorkerRPCV0(ctx context.Context, addr string, requestHeader http.Header) (api.Worker, jsonrpc.ClientCloser, error) {
 	u, err := url.Parse(addr)
 	if err != nil {
 		return nil, nil, err
@@ -69,7 +82,7 @@ func NewWorkerRPC(ctx context.Context, addr string, requestHeader http.Header) (

 	u.Path = path.Join(u.Path, "../streams/v0/push")

-	var res apistruct.WorkerStruct
+	var res api.WorkerStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.Internal,
@@ -83,9 +96,9 @@ func NewWorkerRPC(ctx context.Context, addr string, requestHeader http.Header) (
 	return &res, closer, err
 }

-// NewGatewayRPC creates a new http jsonrpc client for a gateway node.
-func NewGatewayRPC(ctx context.Context, addr string, requestHeader http.Header, opts ...jsonrpc.Option) (api.GatewayAPI, jsonrpc.ClientCloser, error) {
-	var res apistruct.GatewayStruct
+// NewGatewayRPCV1 creates a new http jsonrpc client for a gateway node.
+func NewGatewayRPCV1(ctx context.Context, addr string, requestHeader http.Header, opts ...jsonrpc.Option) (api.Gateway, jsonrpc.ClientCloser, error) {
+	var res api.GatewayStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.Internal,
@@ -97,8 +110,22 @@ func NewGatewayRPC(ctx context.Context, addr string, requestHeader http.Header,
 	return &res, closer, err
 }

-func NewWalletRPC(ctx context.Context, addr string, requestHeader http.Header) (api.WalletAPI, jsonrpc.ClientCloser, error) {
-	var res apistruct.WalletStruct
+// NewGatewayRPCV0 creates a new http jsonrpc client for a gateway node.
+func NewGatewayRPCV0(ctx context.Context, addr string, requestHeader http.Header, opts ...jsonrpc.Option) (v0api.Gateway, jsonrpc.ClientCloser, error) {
+	var res v0api.GatewayStruct
+	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
+		[]interface{}{
+			&res.Internal,
+		},
+		requestHeader,
+		opts...,
+	)
+
+	return &res, closer, err
+}
+
+func NewWalletRPCV0(ctx context.Context, addr string, requestHeader http.Header) (api.Wallet, jsonrpc.ClientCloser, error) {
+	var res api.WalletStruct
 	closer, err := jsonrpc.NewMergeClient(ctx, addr, "Filecoin",
 		[]interface{}{
 			&res.Internal,
@@ -0,0 +1,74 @@
+package main
+
+import (
+	"compress/gzip"
+	"encoding/json"
+	"io"
+	"log"
+	"os"
+
+	"github.com/filecoin-project/lotus/api/docgen"
+
+	docgen_openrpc "github.com/filecoin-project/lotus/api/docgen-openrpc"
+)
+
+/*
+main defines a small program that writes an OpenRPC document describing
+a Lotus API to stdout.
+
+If the first argument is "miner", the document will describe the StorageMiner API.
+If not (no, or any other args), the document will describe the Full API.
+
+Use:
+
+		go run ./api/openrpc/cmd ["api/api_full.go"|"api/api_storage.go"|"api/api_worker.go"] ["FullNode"|"StorageMiner"|"Worker"]
+
+	With gzip compression: a '-gzip' flag is made available as an optional third argument. Note that position matters.
+
+		go run ./api/openrpc/cmd ["api/api_full.go"|"api/api_storage.go"|"api/api_worker.go"] ["FullNode"|"StorageMiner"|"Worker"] -gzip
+
+*/
+
+func main() {
+	Comments, GroupDocs := docgen.ParseApiASTInfo(os.Args[1], os.Args[2], os.Args[3], os.Args[4])
+
+	doc := docgen_openrpc.NewLotusOpenRPCDocument(Comments, GroupDocs)
+
+	i, _, _, _ := docgen.GetAPIType(os.Args[2], os.Args[3])
+	doc.RegisterReceiverName("Filecoin", i)
+
+	out, err := doc.Discover()
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	var jsonOut []byte
+	var writer io.WriteCloser
+
+	// Use os.Args to handle a somewhat hacky flag for the gzip option.
+	// Could use flags package to handle this more cleanly, but that requires changes elsewhere
+	// the scope of which just isn't warranted by this one use case which will usually be run
+	// programmatically anyways.
+	if len(os.Args) > 5 && os.Args[5] == "-gzip" {
+		jsonOut, err = json.Marshal(out)
+		if err != nil {
+			log.Fatalln(err)
+		}
+		writer = gzip.NewWriter(os.Stdout)
+	} else {
+		jsonOut, err = json.MarshalIndent(out, "", "    ")
+		if err != nil {
+			log.Fatalln(err)
+		}
+		writer = os.Stdout
+	}
+
+	_, err = writer.Write(jsonOut)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	err = writer.Close()
+	if err != nil {
+		log.Fatalln(err)
+	}
+}
@@ -0,0 +1,161 @@
+package docgenopenrpc
+
+import (
+	"encoding/json"
+	"go/ast"
+	"net"
+	"reflect"
+
+	"github.com/alecthomas/jsonschema"
+	go_openrpc_reflect "github.com/etclabscore/go-openrpc-reflect"
+	"github.com/filecoin-project/lotus/api/docgen"
+	"github.com/filecoin-project/lotus/build"
+	"github.com/ipfs/go-cid"
+	meta_schema "github.com/open-rpc/meta-schema"
+)
+
+// schemaDictEntry represents a type association passed to the jsonschema reflector.
+type schemaDictEntry struct {
+	example interface{}
+	rawJson string
+}
+
+const integerD = `{
+          "title": "number",
+          "type": "number",
+          "description": "Number is a number"
+        }`
+
+const cidCidD = `{"title": "Content Identifier", "type": "string", "description": "Cid represents a self-describing content addressed identifier. It is formed by a Version, a Codec (which indicates a multicodec-packed content type) and a Multihash."}`
+
+func OpenRPCSchemaTypeMapper(ty reflect.Type) *jsonschema.Type {
+	unmarshalJSONToJSONSchemaType := func(input string) *jsonschema.Type {
+		var js jsonschema.Type
+		err := json.Unmarshal([]byte(input), &js)
+		if err != nil {
+			panic(err)
+		}
+		return &js
+	}
+
+	if ty.Kind() == reflect.Ptr {
+		ty = ty.Elem()
+	}
+
+	if ty == reflect.TypeOf((*interface{})(nil)).Elem() {
+		return &jsonschema.Type{Type: "object", AdditionalProperties: []byte("true")}
+	}
+
+	// Second, handle other types.
+	// Use a slice instead of a map because it preserves order, as a logic safeguard/fallback.
+	dict := []schemaDictEntry{
+		{cid.Cid{}, cidCidD},
+	}
+
+	for _, d := range dict {
+		if reflect.TypeOf(d.example) == ty {
+			tt := unmarshalJSONToJSONSchemaType(d.rawJson)
+
+			return tt
+		}
+	}
+
+	// Handle primitive types in case there are generic cases
+	// specific to our services.
+	switch ty.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		// Return all integer types as the hex representation integer schemea.
+		ret := unmarshalJSONToJSONSchemaType(integerD)
+		return ret
+	case reflect.Uintptr:
+		return &jsonschema.Type{Type: "number", Title: "uintptr-title"}
+	case reflect.Struct:
+	case reflect.Map:
+	case reflect.Slice, reflect.Array:
+	case reflect.Float32, reflect.Float64:
+	case reflect.Bool:
+	case reflect.String:
+	case reflect.Ptr, reflect.Interface:
+	default:
+	}
+
+	return nil
+}
+
+// NewLotusOpenRPCDocument defines application-specific documentation and configuration for its OpenRPC document.
+func NewLotusOpenRPCDocument(Comments, GroupDocs map[string]string) *go_openrpc_reflect.Document {
+	d := &go_openrpc_reflect.Document{}
+
+	// Register "Meta" document fields.
+	// These include getters for
+	// - Servers object
+	// - Info object
+	// - ExternalDocs object
+	//
+	// These objects represent server-specific data that cannot be
+	// reflected.
+	d.WithMeta(&go_openrpc_reflect.MetaT{
+		GetServersFn: func() func(listeners []net.Listener) (*meta_schema.Servers, error) {
+			return func(listeners []net.Listener) (*meta_schema.Servers, error) {
+				return nil, nil
+			}
+		},
+		GetInfoFn: func() (info *meta_schema.InfoObject) {
+			info = &meta_schema.InfoObject{}
+			title := "Lotus RPC API"
+			info.Title = (*meta_schema.InfoObjectProperties)(&title)
+
+			version := build.BuildVersion
+			info.Version = (*meta_schema.InfoObjectVersion)(&version)
+			return info
+		},
+		GetExternalDocsFn: func() (exdocs *meta_schema.ExternalDocumentationObject) {
+			return nil // FIXME
+		},
+	})
+
+	// Use a provided Ethereum default configuration as a base.
+	appReflector := &go_openrpc_reflect.EthereumReflectorT{}
+
+	// Install overrides for the json schema->type map fn used by the jsonschema reflect package.
+	appReflector.FnSchemaTypeMap = func() func(ty reflect.Type) *jsonschema.Type {
+		return OpenRPCSchemaTypeMapper
+	}
+
+	appReflector.FnIsMethodEligible = func(m reflect.Method) bool {
+		for i := 0; i < m.Func.Type().NumOut(); i++ {
+			if m.Func.Type().Out(i).Kind() == reflect.Chan {
+				return false
+			}
+		}
+		return go_openrpc_reflect.EthereumReflector.IsMethodEligible(m)
+	}
+	appReflector.FnGetMethodName = func(moduleName string, r reflect.Value, m reflect.Method, funcDecl *ast.FuncDecl) (string, error) {
+		if m.Name == "ID" {
+			return moduleName + "_ID", nil
+		}
+		if moduleName == "rpc" && m.Name == "Discover" {
+			return "rpc.discover", nil
+		}
+
+		return moduleName + "." + m.Name, nil
+	}
+
+	appReflector.FnGetMethodSummary = func(r reflect.Value, m reflect.Method, funcDecl *ast.FuncDecl) (string, error) {
+		if v, ok := Comments[m.Name]; ok {
+			return v, nil
+		}
+		return "", nil // noComment
+	}
+
+	appReflector.FnSchemaExamples = func(ty reflect.Type) (examples *meta_schema.Examples, err error) {
+		v := docgen.ExampleValue("unknown", ty, ty) // This isn't ideal, but seems to work well enough.
+		return &meta_schema.Examples{
+			meta_schema.AlwaysTrue(v),
+		}, nil
+	}
+
+	// Finally, register the configured reflector to the document.
+	d.WithReflector(appReflector)
+	return d
+}
@@ -0,0 +1,116 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"sort"
+	"strings"
+
+	"github.com/filecoin-project/lotus/api/docgen"
+)
+
+func main() {
+	comments, groupComments := docgen.ParseApiASTInfo(os.Args[1], os.Args[2], os.Args[3], os.Args[4])
+
+	groups := make(map[string]*docgen.MethodGroup)
+
+	_, t, permStruct, commonPermStruct := docgen.GetAPIType(os.Args[2], os.Args[3])
+
+	for i := 0; i < t.NumMethod(); i++ {
+		m := t.Method(i)
+
+		groupName := docgen.MethodGroupFromName(m.Name)
+
+		g, ok := groups[groupName]
+		if !ok {
+			g = new(docgen.MethodGroup)
+			g.Header = groupComments[groupName]
+			g.GroupName = groupName
+			groups[groupName] = g
+		}
+
+		var args []interface{}
+		ft := m.Func.Type()
+		for j := 2; j < ft.NumIn(); j++ {
+			inp := ft.In(j)
+			args = append(args, docgen.ExampleValue(m.Name, inp, nil))
+		}
+
+		v, err := json.MarshalIndent(args, "", "  ")
+		if err != nil {
+			panic(err)
+		}
+
+		outv := docgen.ExampleValue(m.Name, ft.Out(0), nil)
+
+		ov, err := json.MarshalIndent(outv, "", "  ")
+		if err != nil {
+			panic(err)
+		}
+
+		g.Methods = append(g.Methods, &docgen.Method{
+			Name:            m.Name,
+			Comment:         comments[m.Name],
+			InputExample:    string(v),
+			ResponseExample: string(ov),
+		})
+	}
+
+	var groupslice []*docgen.MethodGroup
+	for _, g := range groups {
+		groupslice = append(groupslice, g)
+	}
+
+	sort.Slice(groupslice, func(i, j int) bool {
+		return groupslice[i].GroupName < groupslice[j].GroupName
+	})
+
+	fmt.Printf("# Groups\n")
+
+	for _, g := range groupslice {
+		fmt.Printf("* [%s](#%s)\n", g.GroupName, g.GroupName)
+		for _, method := range g.Methods {
+			fmt.Printf("  * [%s](#%s)\n", method.Name, method.Name)
+		}
+	}
+
+	for _, g := range groupslice {
+		g := g
+		fmt.Printf("## %s\n", g.GroupName)
+		fmt.Printf("%s\n\n", g.Header)
+
+		sort.Slice(g.Methods, func(i, j int) bool {
+			return g.Methods[i].Name < g.Methods[j].Name
+		})
+
+		for _, m := range g.Methods {
+			fmt.Printf("### %s\n", m.Name)
+			fmt.Printf("%s\n\n", m.Comment)
+
+			meth, ok := permStruct.FieldByName(m.Name)
+			if !ok {
+				meth, ok = commonPermStruct.FieldByName(m.Name)
+				if !ok {
+					panic("no perms for method: " + m.Name)
+				}
+			}
+
+			perms := meth.Tag.Get("perm")
+
+			fmt.Printf("Perms: %s\n\n", perms)
+
+			if strings.Count(m.InputExample, "\n") > 0 {
+				fmt.Printf("Inputs:\n```json\n%s\n```\n\n", m.InputExample)
+			} else {
+				fmt.Printf("Inputs: `%s`\n\n", m.InputExample)
+			}
+
+			if strings.Count(m.ResponseExample, "\n") > 0 {
+				fmt.Printf("Response:\n```json\n%s\n```\n\n", m.ResponseExample)
+			} else {
+				fmt.Printf("Response: `%s`\n\n", m.ResponseExample)
+			}
+		}
+	}
+}
@@ -1,17 +1,19 @@
-package main
+package docgen

 import (
-	"encoding/json"
 	"fmt"
 	"go/ast"
 	"go/parser"
 	"go/token"
+	"path/filepath"
 	"reflect"
-	"sort"
 	"strings"
 	"time"
 	"unicode"

+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-bitfield"
+	"github.com/google/uuid"
 	"github.com/ipfs/go-cid"
 	"github.com/ipfs/go-filestore"
 	metrics "github.com/libp2p/go-libp2p-core/metrics"
@@ -21,9 +23,8 @@ import (
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"github.com/multiformats/go-multiaddr"

-	"github.com/filecoin-project/go-address"
-	"github.com/filecoin-project/go-bitfield"
 	datatransfer "github.com/filecoin-project/go-data-transfer"
+	filestore2 "github.com/filecoin-project/go-fil-markets/filestore"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-jsonrpc/auth"
 	"github.com/filecoin-project/go-multistore"
@@ -33,9 +34,14 @@ import (
 	"github.com/filecoin-project/go-state-types/exitcode"

 	"github.com/filecoin-project/lotus/api"
-	"github.com/filecoin-project/lotus/api/apistruct"
+	apitypes "github.com/filecoin-project/lotus/api/types"
+	"github.com/filecoin-project/lotus/api/v0api"
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/extern/sector-storage/sealtasks"
+	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
+	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
+	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )

@@ -82,8 +88,10 @@ func init() {
 	addExample(pid)
 	addExample(&pid)

+	multistoreIDExample := multistore.StoreID(50)
+
 	addExample(bitfield.NewFromSet([]uint64{5}))
-	addExample(abi.RegisteredSealProof_StackedDrg32GiBV1)
+	addExample(abi.RegisteredSealProof_StackedDrg32GiBV1_1)
 	addExample(abi.RegisteredPoStProof_StackedDrgWindow32GiBV1)
 	addExample(abi.ChainEpoch(10101))
 	addExample(crypto.SigTypeBLS)
@@ -106,28 +114,31 @@ func init() {
 	addExample(network.Connected)
 	addExample(dtypes.NetworkName("lotus"))
 	addExample(api.SyncStateStage(1))
-	addExample(build.FullAPIVersion)
+	addExample(api.FullAPIVersion1)
 	addExample(api.PCHInbound)
 	addExample(time.Minute)
 	addExample(datatransfer.TransferID(3))
 	addExample(datatransfer.Ongoing)
-	addExample(multistore.StoreID(50))
+	addExample(multistoreIDExample)
+	addExample(&multistoreIDExample)
 	addExample(retrievalmarket.ClientEventDealAccepted)
 	addExample(retrievalmarket.DealStatusNew)
 	addExample(network.ReachabilityPublic)
 	addExample(build.NewestNetworkVersion)
+	addExample(map[string]int{"name": 42})
+	addExample(map[string]time.Time{"name": time.Unix(1615243938, 0).UTC()})
 	addExample(&types.ExecutionTrace{
-		Msg:    exampleValue(reflect.TypeOf(&types.Message{}), nil).(*types.Message),
-		MsgRct: exampleValue(reflect.TypeOf(&types.MessageReceipt{}), nil).(*types.MessageReceipt),
+		Msg:    ExampleValue("init", reflect.TypeOf(&types.Message{}), nil).(*types.Message),
+		MsgRct: ExampleValue("init", reflect.TypeOf(&types.MessageReceipt{}), nil).(*types.MessageReceipt),
 	})
 	addExample(map[string]types.Actor{
-		"t01236": exampleValue(reflect.TypeOf(types.Actor{}), nil).(types.Actor),
+		"t01236": ExampleValue("init", reflect.TypeOf(types.Actor{}), nil).(types.Actor),
 	})
 	addExample(map[string]api.MarketDeal{
-		"t026363": exampleValue(reflect.TypeOf(api.MarketDeal{}), nil).(api.MarketDeal),
+		"t026363": ExampleValue("init", reflect.TypeOf(api.MarketDeal{}), nil).(api.MarketDeal),
 	})
 	addExample(map[string]api.MarketBalance{
-		"t026363": exampleValue(reflect.TypeOf(api.MarketBalance{}), nil).(api.MarketBalance),
+		"t026363": ExampleValue("init", reflect.TypeOf(api.MarketBalance{}), nil).(api.MarketBalance),
 	})
 	addExample(map[string]*pubsub.TopicScoreSnapshot{
 		"/blocks": {
@@ -162,9 +173,133 @@ func init() {
 	// because reflect.TypeOf(maddr) returns the concrete type...
 	ExampleValues[reflect.TypeOf(struct{ A multiaddr.Multiaddr }{}).Field(0).Type] = maddr

+	// miner specific
+	addExample(filestore2.Path(".lotusminer/fstmp123"))
+	si := multistore.StoreID(12)
+	addExample(&si)
+	addExample(retrievalmarket.DealID(5))
+	addExample(abi.ActorID(1000))
+	addExample(map[string][]api.SealedRef{
+		"98000": {
+			api.SealedRef{
+				SectorID: 100,
+				Offset:   10 << 20,
+				Size:     1 << 20,
+			},
+		},
+	})
+	addExample(api.SectorState(sealing.Proving))
+	addExample(stores.ID("76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8"))
+	addExample(storiface.FTUnsealed)
+	addExample(storiface.PathSealing)
+	addExample(map[stores.ID][]stores.Decl{
+		"76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8": {
+			{
+				SectorID:       abi.SectorID{Miner: 1000, Number: 100},
+				SectorFileType: storiface.FTSealed,
+			},
+		},
+	})
+	addExample(map[stores.ID]string{
+		"76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8": "/data/path",
+	})
+	addExample(map[uuid.UUID][]storiface.WorkerJob{
+		uuid.MustParse("ef8d99a2-6865-4189-8ffa-9fef0f806eee"): {
+			{
+				ID: storiface.CallID{
+					Sector: abi.SectorID{Miner: 1000, Number: 100},
+					ID:     uuid.MustParse("76081ba0-61bd-45a5-bc08-af05f1c26e5d"),
+				},
+				Sector:   abi.SectorID{Miner: 1000, Number: 100},
+				Task:     sealtasks.TTPreCommit2,
+				RunWait:  0,
+				Start:    time.Unix(1605172927, 0).UTC(),
+				Hostname: "host",
+			},
+		},
+	})
+	addExample(map[uuid.UUID]storiface.WorkerStats{
+		uuid.MustParse("ef8d99a2-6865-4189-8ffa-9fef0f806eee"): {
+			Info: storiface.WorkerInfo{
+				Hostname: "host",
+				Resources: storiface.WorkerResources{
+					MemPhysical: 256 << 30,
+					MemSwap:     120 << 30,
+					MemReserved: 2 << 30,
+					CPUs:        64,
+					GPUs:        []string{"aGPU 1337"},
+				},
+			},
+			Enabled:    true,
+			MemUsedMin: 0,
+			MemUsedMax: 0,
+			GpuUsed:    false,
+			CpuUse:     0,
+		},
+	})
+	addExample(storiface.ErrorCode(0))
+	addExample(map[abi.SectorNumber]string{
+		123: "can't acquire read lock",
+	})
+	addExample(map[api.SectorState]int{
+		api.SectorState(sealing.Proving): 120,
+	})
+	addExample([]abi.SectorNumber{123, 124})
+
+	// worker specific
+	addExample(storiface.AcquireMove)
+	addExample(storiface.UnpaddedByteIndex(abi.PaddedPieceSize(1 << 20).Unpadded()))
+	addExample(map[sealtasks.TaskType]struct{}{
+		sealtasks.TTPreCommit2: {},
+	})
+	addExample(sealtasks.TTCommit2)
+	addExample(apitypes.OpenRPCDocument{
+		"openrpc": "1.2.6",
+		"info": map[string]interface{}{
+			"title":   "Lotus RPC API",
+			"version": "1.2.1/generated=2020-11-22T08:22:42-06:00",
+		},
+		"methods": []interface{}{}},
+	)
 }

-func exampleValue(t, parent reflect.Type) interface{} {
+func GetAPIType(name, pkg string) (i interface{}, t, permStruct, commonPermStruct reflect.Type) {
+	switch pkg {
+	case "api": // latest
+		switch name {
+		case "FullNode":
+			i = &api.FullNodeStruct{}
+			t = reflect.TypeOf(new(struct{ api.FullNode })).Elem()
+			permStruct = reflect.TypeOf(api.FullNodeStruct{}.Internal)
+			commonPermStruct = reflect.TypeOf(api.CommonStruct{}.Internal)
+		case "StorageMiner":
+			i = &api.StorageMinerStruct{}
+			t = reflect.TypeOf(new(struct{ api.StorageMiner })).Elem()
+			permStruct = reflect.TypeOf(api.StorageMinerStruct{}.Internal)
+			commonPermStruct = reflect.TypeOf(api.CommonStruct{}.Internal)
+		case "Worker":
+			i = &api.WorkerStruct{}
+			t = reflect.TypeOf(new(struct{ api.Worker })).Elem()
+			permStruct = reflect.TypeOf(api.WorkerStruct{}.Internal)
+			commonPermStruct = reflect.TypeOf(api.WorkerStruct{}.Internal)
+		default:
+			panic("unknown type")
+		}
+	case "v0api":
+		switch name {
+		case "FullNode":
+			i = v0api.FullNodeStruct{}
+			t = reflect.TypeOf(new(struct{ v0api.FullNode })).Elem()
+			permStruct = reflect.TypeOf(v0api.FullNodeStruct{}.Internal)
+			commonPermStruct = reflect.TypeOf(v0api.CommonStruct{}.Internal)
+		default:
+			panic("unknown type")
+		}
+	}
+	return
+}
+
+func ExampleValue(method string, t, parent reflect.Type) interface{} {
 	v, ok := ExampleValues[t]
 	if ok {
 		return v
@@ -173,25 +308,25 @@ func exampleValue(t, parent reflect.Type) interface{} {
 	switch t.Kind() {
 	case reflect.Slice:
 		out := reflect.New(t).Elem()
-		reflect.Append(out, reflect.ValueOf(exampleValue(t.Elem(), t)))
+		reflect.Append(out, reflect.ValueOf(ExampleValue(method, t.Elem(), t)))
 		return out.Interface()
 	case reflect.Chan:
-		return exampleValue(t.Elem(), nil)
+		return ExampleValue(method, t.Elem(), nil)
 	case reflect.Struct:
-		es := exampleStruct(t, parent)
+		es := exampleStruct(method, t, parent)
 		v := reflect.ValueOf(es).Elem().Interface()
 		ExampleValues[t] = v
 		return v
 	case reflect.Array:
 		out := reflect.New(t).Elem()
 		for i := 0; i < t.Len(); i++ {
-			out.Index(i).Set(reflect.ValueOf(exampleValue(t.Elem(), t)))
+			out.Index(i).Set(reflect.ValueOf(ExampleValue(method, t.Elem(), t)))
 		}
 		return out.Interface()

 	case reflect.Ptr:
 		if t.Elem().Kind() == reflect.Struct {
-			es := exampleStruct(t.Elem(), t)
+			es := exampleStruct(method, t.Elem(), t)
 			//ExampleValues[t] = es
 			return es
 		}
@@ -199,10 +334,10 @@ func exampleValue(t, parent reflect.Type) interface{} {
 		return struct{}{}
 	}

-	panic(fmt.Sprintf("No example value for type: %s", t))
+	panic(fmt.Sprintf("No example value for type: %s (method '%s')", t, method))
 }

-func exampleStruct(t, parent reflect.Type) interface{} {
+func exampleStruct(method string, t, parent reflect.Type) interface{} {
 	ns := reflect.New(t)
 	for i := 0; i < t.NumField(); i++ {
 		f := t.Field(i)
@@ -210,7 +345,7 @@ func exampleStruct(t, parent reflect.Type) interface{} {
 			continue
 		}
 		if strings.Title(f.Name) == f.Name {
-			ns.Elem().Field(i).Set(reflect.ValueOf(exampleValue(f.Type, t)))
+			ns.Elem().Field(i).Set(reflect.ValueOf(ExampleValue(method, f.Type, t)))
 		}
 	}

@@ -218,6 +353,7 @@ func exampleStruct(t, parent reflect.Type) interface{} {
 }

 type Visitor struct {
+	Root    string
 	Methods map[string]ast.Node
 }

@@ -227,7 +363,7 @@ func (v *Visitor) Visit(node ast.Node) ast.Visitor {
 		return v
 	}

-	if st.Name.Name != "FullNode" {
+	if st.Name.Name != v.Root {
 		return nil
 	}

@@ -241,32 +377,43 @@ func (v *Visitor) Visit(node ast.Node) ast.Visitor {
 	return v
 }

-const noComment = "There are not yet any comments for this method."
+const NoComment = "There are not yet any comments for this method."

-func parseApiASTInfo() (map[string]string, map[string]string) { //nolint:golint
+func ParseApiASTInfo(apiFile, iface, pkg, dir string) (comments map[string]string, groupDocs map[string]string) { //nolint:golint
 	fset := token.NewFileSet()
-	pkgs, err := parser.ParseDir(fset, "./api", nil, parser.AllErrors|parser.ParseComments)
+	apiDir, err := filepath.Abs(dir)
+	if err != nil {
+		fmt.Println("./api filepath absolute error: ", err)
+		return
+	}
+	apiFile, err = filepath.Abs(apiFile)
+	if err != nil {
+		fmt.Println("filepath absolute error: ", err, "file:", apiFile)
+		return
+	}
+	pkgs, err := parser.ParseDir(fset, apiDir, nil, parser.AllErrors|parser.ParseComments)
 	if err != nil {
 		fmt.Println("parse error: ", err)
+		return
 	}

-	ap := pkgs["api"]
+	ap := pkgs[pkg]

-	f := ap.Files["api/api_full.go"]
+	f := ap.Files[apiFile]

 	cmap := ast.NewCommentMap(fset, f, f.Comments)

-	v := &Visitor{make(map[string]ast.Node)}
-	ast.Walk(v, pkgs["api"])
+	v := &Visitor{iface, make(map[string]ast.Node)}
+	ast.Walk(v, ap)

-	groupDocs := make(map[string]string)
-	out := make(map[string]string)
+	comments = make(map[string]string)
+	groupDocs = make(map[string]string)
 	for mn, node := range v.Methods {
-		cs := cmap.Filter(node).Comments()
-		if len(cs) == 0 {
-			out[mn] = noComment
+		filteredComments := cmap.Filter(node).Comments()
+		if len(filteredComments) == 0 {
+			comments[mn] = NoComment
 		} else {
-			for _, c := range cs {
+			for _, c := range filteredComments {
 				if strings.HasPrefix(c.Text(), "MethodGroup:") {
 					parts := strings.Split(c.Text(), "\n")
 					groupName := strings.TrimSpace(parts[0][12:])
@@ -277,15 +424,19 @@ func parseApiASTInfo() (map[string]string, map[string]string) { //nolint:golint
 				}
 			}

-			last := cs[len(cs)-1].Text()
+			l := len(filteredComments) - 1
+			if len(filteredComments) > 1 {
+				l = len(filteredComments) - 2
+			}
+			last := filteredComments[l].Text()
 			if !strings.HasPrefix(last, "MethodGroup:") {
-				out[mn] = last
+				comments[mn] = last
 			} else {
-				out[mn] = noComment
+				comments[mn] = NoComment
 			}
 		}
 	}
-	return out, groupDocs
+	return comments, groupDocs
 }

 type MethodGroup struct {
@@ -301,7 +452,7 @@ type Method struct {
 	ResponseExample string
 }

-func methodGroupFromName(mn string) string {
+func MethodGroupFromName(mn string) string {
 	i := strings.IndexFunc(mn[1:], func(r rune) bool {
 		return unicode.IsUpper(r)
 	})
@@ -310,112 +461,3 @@ func methodGroupFromName(mn string) string {
 	}
 	return mn[:i+1]
 }
-
-func main() {
-
-	comments, groupComments := parseApiASTInfo()
-
-	groups := make(map[string]*MethodGroup)
-
-	var api struct{ api.FullNode }
-	t := reflect.TypeOf(api)
-	for i := 0; i < t.NumMethod(); i++ {
-		m := t.Method(i)
-
-		groupName := methodGroupFromName(m.Name)
-
-		g, ok := groups[groupName]
-		if !ok {
-			g = new(MethodGroup)
-			g.Header = groupComments[groupName]
-			g.GroupName = groupName
-			groups[groupName] = g
-		}
-
-		var args []interface{}
-		ft := m.Func.Type()
-		for j := 2; j < ft.NumIn(); j++ {
-			inp := ft.In(j)
-			args = append(args, exampleValue(inp, nil))
-		}
-
-		v, err := json.MarshalIndent(args, "", "  ")
-		if err != nil {
-			panic(err)
-		}
-
-		outv := exampleValue(ft.Out(0), nil)
-
-		ov, err := json.MarshalIndent(outv, "", "  ")
-		if err != nil {
-			panic(err)
-		}
-
-		g.Methods = append(g.Methods, &Method{
-			Name:            m.Name,
-			Comment:         comments[m.Name],
-			InputExample:    string(v),
-			ResponseExample: string(ov),
-		})
-	}
-
-	var groupslice []*MethodGroup
-	for _, g := range groups {
-		groupslice = append(groupslice, g)
-	}
-
-	sort.Slice(groupslice, func(i, j int) bool {
-		return groupslice[i].GroupName < groupslice[j].GroupName
-	})
-
-	fmt.Printf("# Groups\n")
-
-	for _, g := range groupslice {
-		fmt.Printf("* [%s](#%s)\n", g.GroupName, g.GroupName)
-		for _, method := range g.Methods {
-			fmt.Printf("  * [%s](#%s)\n", method.Name, method.Name)
-		}
-	}
-
-	permStruct := reflect.TypeOf(apistruct.FullNodeStruct{}.Internal)
-	commonPermStruct := reflect.TypeOf(apistruct.CommonStruct{}.Internal)
-
-	for _, g := range groupslice {
-		g := g
-		fmt.Printf("## %s\n", g.GroupName)
-		fmt.Printf("%s\n\n", g.Header)
-
-		sort.Slice(g.Methods, func(i, j int) bool {
-			return g.Methods[i].Name < g.Methods[j].Name
-		})
-
-		for _, m := range g.Methods {
-			fmt.Printf("### %s\n", m.Name)
-			fmt.Printf("%s\n\n", m.Comment)
-
-			meth, ok := permStruct.FieldByName(m.Name)
-			if !ok {
-				meth, ok = commonPermStruct.FieldByName(m.Name)
-				if !ok {
-					panic("no perms for method: " + m.Name)
-				}
-			}
-
-			perms := meth.Tag.Get("perm")
-
-			fmt.Printf("Perms: %s\n\n", perms)
-
-			if strings.Count(m.InputExample, "\n") > 0 {
-				fmt.Printf("Inputs:\n```json\n%s\n```\n\n", m.InputExample)
-			} else {
-				fmt.Printf("Inputs: `%s`\n\n", m.InputExample)
-			}
-
-			if strings.Count(m.ResponseExample, "\n") > 0 {
-				fmt.Printf("Response:\n```json\n%s\n```\n\n", m.ResponseExample)
-			} else {
-				fmt.Printf("Response: `%s`\n\n", m.ResponseExample)
-			}
-		}
-	}
-}
@@ -1,8 +1,7 @@
-package apistruct
+package api

 import (
 	"github.com/filecoin-project/go-jsonrpc/auth"
-	"github.com/filecoin-project/lotus/api"
 )

 const (
@@ -17,27 +16,27 @@ const (
 var AllPermissions = []auth.Permission{PermRead, PermWrite, PermSign, PermAdmin}
 var DefaultPerms = []auth.Permission{PermRead}

-func PermissionedStorMinerAPI(a api.StorageMiner) api.StorageMiner {
+func PermissionedStorMinerAPI(a StorageMiner) StorageMiner {
 	var out StorageMinerStruct
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.Internal)
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.CommonStruct.Internal)
 	return &out
 }

-func PermissionedFullAPI(a api.FullNode) api.FullNode {
+func PermissionedFullAPI(a FullNode) FullNode {
 	var out FullNodeStruct
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.Internal)
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.CommonStruct.Internal)
 	return &out
 }

-func PermissionedWorkerAPI(a api.WorkerAPI) api.WorkerAPI {
+func PermissionedWorkerAPI(a Worker) Worker {
 	var out WorkerStruct
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.Internal)
 	return &out
 }

-func PermissionedWalletAPI(a api.WalletAPI) api.WalletAPI {
+func PermissionedWalletAPI(a Wallet) Wallet {
 	var out WalletStruct
 	auth.PermissionedProxy(AllPermissions, DefaultPerms, a, &out.Internal)
 	return &out
@@ -37,7 +37,12 @@ func (bm *BlockMiner) MineBlocks() {
 	go func() {
 		defer close(bm.done)
 		for atomic.LoadInt64(&bm.mine) == 1 {
-			time.Sleep(bm.blocktime)
+			select {
+			case <-bm.ctx.Done():
+				return
+			case <-time.After(bm.blocktime):
+			}
+
 			nulls := atomic.SwapInt64(&bm.nulls, 0)
 			if err := bm.miner.MineOne(bm.ctx, miner.MineReq{
 				InjectNulls: abi.ChainEpoch(nulls),
@@ -17,9 +17,9 @@ import (

 func TestCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration) {
 	for _, height := range []abi.ChainEpoch{
-		1,    // before
+		-1,   // before
 		162,  // while sealing
-		520,  // after upgrade deal
+		530,  // after upgrade deal
 		5000, // after
 	} {
 		height := height // make linters happy by copying
@@ -31,7 +31,7 @@ func TestCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration) {

 func testCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration, upgradeHeight abi.ChainEpoch) {
 	ctx := context.Background()
-	n, sn := b(t, []FullNodeOpts{FullNodeWithUpgradeAt(upgradeHeight)}, OneMiner)
+	n, sn := b(t, []FullNodeOpts{FullNodeWithLatestActorsAt(upgradeHeight)}, OneMiner)
 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]

@@ -89,7 +89,7 @@ func testCCUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration, upgradeH
 		t.Fatal(err)
 	}

-	MakeDeal(t, ctx, 6, client, miner, false, false)
+	MakeDeal(t, ctx, 6, client, miner, false, false, 0)

 	// Validate upgrade

@@ -0,0 +1,352 @@
+package test
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/filecoin-project/lotus/api"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-bitfield"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/big"
+	"github.com/filecoin-project/go-state-types/exitcode"
+	"github.com/filecoin-project/go-state-types/network"
+	miner2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/miner"
+	"github.com/ipfs/go-cid"
+	cbor "github.com/ipfs/go-ipld-cbor"
+
+	"github.com/filecoin-project/lotus/blockstore"
+	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/extern/sector-storage/mock"
+	"github.com/filecoin-project/lotus/node/impl"
+)
+
+// TestDeadlineToggling:
+// * spins up a v3 network (miner A)
+// * creates an inactive miner (miner B)
+// * creates another miner, pledges a sector, waits for power (miner C)
+//
+// * goes through v4 upgrade
+// * goes through PP
+// * creates minerD, minerE
+// * makes sure that miner B/D are inactive, A/C still are
+// * pledges sectors on miner B/D
+// * precommits a sector on minerE
+// * disables post on miner C
+// * goes through PP 0.5PP
+// * asserts that minerE is active
+// * goes through rest of PP (1.5)
+// * asserts that miner C loses power
+// * asserts that miner B/D is active and has power
+// * asserts that minerE is inactive
+// * disables post on miner B
+// * terminates sectors on miner D
+// * goes through another PP
+// * asserts that miner B loses power
+// * asserts that miner D loses power, is inactive
+func TestDeadlineToggling(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	var upgradeH abi.ChainEpoch = 4000
+	var provingPeriod abi.ChainEpoch = 2880
+
+	const sectorsC, sectorsD, sectersB = 10, 9, 8
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithV4ActorsAt(upgradeH)}, OneMiner)
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	minerA := sn[0]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := minerA.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	defaultFrom, err := client.WalletDefaultAddress(ctx)
+	require.NoError(t, err)
+
+	maddrA, err := minerA.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := minerA.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	minerB := n[0].Stb(ctx, t, TestSpt, defaultFrom)
+	minerC := n[0].Stb(ctx, t, TestSpt, defaultFrom)
+
+	maddrB, err := minerB.ActorAddress(ctx)
+	require.NoError(t, err)
+	maddrC, err := minerC.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	ssz, err := minerC.ActorSectorSize(ctx, maddrC)
+	require.NoError(t, err)
+
+	// pledge sectors on C, go through a PP, check for power
+	{
+		pledgeSectors(t, ctx, minerC, sectorsC, 0, nil)
+
+		di, err := client.StateMinerProvingDeadline(ctx, maddrC, types.EmptyTSK)
+		require.NoError(t, err)
+
+		fmt.Printf("Running one proving period (miner C)\n")
+		fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod*2)
+
+		for {
+			head, err := client.ChainHead(ctx)
+			require.NoError(t, err)
+
+			if head.Height() > di.PeriodStart+provingPeriod*2 {
+				fmt.Printf("Now head.Height = %d\n", head.Height())
+				break
+			}
+			build.Clock.Sleep(blocktime)
+		}
+
+		expectedPower := types.NewInt(uint64(ssz) * sectorsC)
+
+		p, err := client.StateMinerPower(ctx, maddrC, types.EmptyTSK)
+		require.NoError(t, err)
+
+		// make sure it has gained power.
+		require.Equal(t, p.MinerPower.RawBytePower, expectedPower)
+	}
+
+	// go through upgrade + PP
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > upgradeH+provingPeriod {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	checkMiner := func(ma address.Address, power abi.StoragePower, active bool, tsk types.TipSetKey) {
+		p, err := client.StateMinerPower(ctx, ma, tsk)
+		require.NoError(t, err)
+
+		// make sure it has the expected power.
+		require.Equal(t, p.MinerPower.RawBytePower, power)
+
+		mact, err := client.StateGetActor(ctx, ma, tsk)
+		require.NoError(t, err)
+
+		mst, err := miner.Load(adt.WrapStore(ctx, cbor.NewCborStore(blockstore.NewAPIBlockstore(client))), mact)
+		require.NoError(t, err)
+
+		act, err := mst.DeadlineCronActive()
+		require.NoError(t, err)
+		require.Equal(t, active, act)
+	}
+
+	// check that just after the upgrade minerB was still active
+	{
+		uts, err := client.ChainGetTipSetByHeight(ctx, upgradeH+2, types.EmptyTSK)
+		require.NoError(t, err)
+		checkMiner(maddrB, types.NewInt(0), true, uts.Key())
+	}
+
+	nv, err := client.StateNetworkVersion(ctx, types.EmptyTSK)
+	require.NoError(t, err)
+	require.GreaterOrEqual(t, nv, network.Version12)
+
+	minerD := n[0].Stb(ctx, t, TestSpt, defaultFrom)
+	minerE := n[0].Stb(ctx, t, TestSpt, defaultFrom)
+
+	maddrD, err := minerD.ActorAddress(ctx)
+	require.NoError(t, err)
+	maddrE, err := minerE.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	// first round of miner checks
+	checkMiner(maddrA, types.NewInt(uint64(ssz)*GenesisPreseals), true, types.EmptyTSK)
+	checkMiner(maddrC, types.NewInt(uint64(ssz)*sectorsC), true, types.EmptyTSK)
+
+	checkMiner(maddrB, types.NewInt(0), false, types.EmptyTSK)
+	checkMiner(maddrD, types.NewInt(0), false, types.EmptyTSK)
+	checkMiner(maddrE, types.NewInt(0), false, types.EmptyTSK)
+
+	// pledge sectors on minerB/minerD, stop post on minerC
+	pledgeSectors(t, ctx, minerB, sectersB, 0, nil)
+	checkMiner(maddrB, types.NewInt(0), true, types.EmptyTSK)
+
+	pledgeSectors(t, ctx, minerD, sectorsD, 0, nil)
+	checkMiner(maddrD, types.NewInt(0), true, types.EmptyTSK)
+
+	minerC.StorageMiner.(*impl.StorageMinerAPI).IStorageMgr.(*mock.SectorMgr).Fail()
+
+	// precommit a sector on minerE
+	{
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		cr, err := cid.Parse("bagboea4b5abcatlxechwbp7kjpjguna6r6q7ejrhe6mdp3lf34pmswn27pkkiekz")
+		require.NoError(t, err)
+
+		params := &miner.SectorPreCommitInfo{
+			Expiration:   2880 * 300,
+			SectorNumber: 22,
+			SealProof:    TestSpt,
+
+			SealedCID:     cr,
+			SealRandEpoch: head.Height() - 200,
+		}
+
+		enc := new(bytes.Buffer)
+		require.NoError(t, params.MarshalCBOR(enc))
+
+		m, err := client.MpoolPushMessage(ctx, &types.Message{
+			To:     maddrE,
+			From:   defaultFrom,
+			Value:  types.FromFil(1),
+			Method: miner.Methods.PreCommitSector,
+			Params: enc.Bytes(),
+		}, nil)
+		require.NoError(t, err)
+
+		r, err := client.StateWaitMsg(ctx, m.Cid(), 2, api.LookbackNoLimit, true)
+		require.NoError(t, err)
+		require.Equal(t, exitcode.Ok, r.Receipt.ExitCode)
+	}
+
+	// go through 0.5 PP
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > upgradeH+provingPeriod+(provingPeriod/2) {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	checkMiner(maddrE, types.NewInt(0), true, types.EmptyTSK)
+
+	// go through rest of the PP
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > upgradeH+(provingPeriod*3) {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	// second round of miner checks
+	checkMiner(maddrA, types.NewInt(uint64(ssz)*GenesisPreseals), true, types.EmptyTSK)
+	checkMiner(maddrC, types.NewInt(0), true, types.EmptyTSK)
+	checkMiner(maddrB, types.NewInt(uint64(ssz)*sectersB), true, types.EmptyTSK)
+	checkMiner(maddrD, types.NewInt(uint64(ssz)*sectorsD), true, types.EmptyTSK)
+	checkMiner(maddrE, types.NewInt(0), false, types.EmptyTSK)
+
+	// disable post on minerB
+	minerB.StorageMiner.(*impl.StorageMinerAPI).IStorageMgr.(*mock.SectorMgr).Fail()
+
+	// terminate sectors on minerD
+	{
+		var terminationDeclarationParams []miner2.TerminationDeclaration
+		secs, err := minerD.SectorsList(ctx)
+		require.NoError(t, err)
+		require.Len(t, secs, sectorsD)
+
+		for _, sectorNum := range secs {
+			sectorbit := bitfield.New()
+			sectorbit.Set(uint64(sectorNum))
+
+			loca, err := client.StateSectorPartition(ctx, maddrD, sectorNum, types.EmptyTSK)
+			require.NoError(t, err)
+
+			para := miner2.TerminationDeclaration{
+				Deadline:  loca.Deadline,
+				Partition: loca.Partition,
+				Sectors:   sectorbit,
+			}
+
+			terminationDeclarationParams = append(terminationDeclarationParams, para)
+		}
+
+		terminateSectorParams := &miner2.TerminateSectorsParams{
+			Terminations: terminationDeclarationParams,
+		}
+
+		sp, aerr := actors.SerializeParams(terminateSectorParams)
+		require.NoError(t, aerr)
+
+		smsg, err := client.MpoolPushMessage(ctx, &types.Message{
+			From:   defaultFrom,
+			To:     maddrD,
+			Method: miner.Methods.TerminateSectors,
+
+			Value:  big.Zero(),
+			Params: sp,
+		}, nil)
+		require.NoError(t, err)
+
+		fmt.Println("sent termination message:", smsg.Cid())
+
+		r, err := client.StateWaitMsg(ctx, smsg.Cid(), 2, api.LookbackNoLimit, true)
+		require.NoError(t, err)
+		require.Equal(t, exitcode.Ok, r.Receipt.ExitCode)
+
+		checkMiner(maddrD, types.NewInt(0), true, r.TipSet)
+	}
+
+	// go through another PP
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > upgradeH+(provingPeriod*5) {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	// third round of miner checks
+	checkMiner(maddrA, types.NewInt(uint64(ssz)*GenesisPreseals), true, types.EmptyTSK)
+	checkMiner(maddrC, types.NewInt(0), true, types.EmptyTSK)
+	checkMiner(maddrB, types.NewInt(0), true, types.EmptyTSK)
+	checkMiner(maddrD, types.NewInt(0), false, types.EmptyTSK)
+}
@@ -8,105 +8,52 @@ import (
 	"math/rand"
 	"os"
 	"path/filepath"
-	"sync/atomic"
+	"sort"
 	"testing"
 	"time"

-	"github.com/stretchr/testify/require"
-
 	"github.com/ipfs/go-cid"
 	files "github.com/ipfs/go-ipfs-files"
 	"github.com/ipld/go-car"
+	"github.com/stretchr/testify/require"

 	"github.com/filecoin-project/go-fil-markets/storagemarket"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
+	"github.com/filecoin-project/lotus/chain/types"
 	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
+	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
+	"github.com/filecoin-project/lotus/markets/storageadapter"
+	"github.com/filecoin-project/lotus/node"
+	"github.com/filecoin-project/lotus/node/impl"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
+	market2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
+	ipld "github.com/ipfs/go-ipld-format"
 	dag "github.com/ipfs/go-merkledag"
 	dstest "github.com/ipfs/go-merkledag/test"
 	unixfile "github.com/ipfs/go-unixfs/file"
-
-	"github.com/filecoin-project/lotus/chain/types"
-	"github.com/filecoin-project/lotus/node/impl"
-	ipld "github.com/ipfs/go-ipld-format"
 )

-func TestDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, carExport, fastRet bool) {
+func TestDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, carExport, fastRet bool, startEpoch abi.ChainEpoch) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()

-	ctx := context.Background()
-	n, sn := b(t, OneFull, OneMiner)
-	client := n[0].FullNode.(*impl.FullNodeAPI)
-	miner := sn[0]
-
-	addrinfo, err := client.NetAddrsListen(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err := miner.NetConnect(ctx, addrinfo); err != nil {
-		t.Fatal(err)
-	}
-	time.Sleep(time.Second)
-
-	mine := int64(1)
-	done := make(chan struct{})
-	go func() {
-		defer close(done)
-		for atomic.LoadInt64(&mine) == 1 {
-			time.Sleep(blocktime)
-			if err := sn[0].MineOne(ctx, MineNext); err != nil {
-				t.Error(err)
-			}
-		}
-	}()
-
-	MakeDeal(t, ctx, 6, client, miner, carExport, fastRet)
-
-	atomic.AddInt64(&mine, -1)
-	fmt.Println("shutting down mining")
-	<-done
+	MakeDeal(t, s.ctx, 6, s.client, s.miner, carExport, fastRet, startEpoch)
 }

-func TestDoubleDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration) {
+func TestDoubleDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()

-	ctx := context.Background()
-	n, sn := b(t, OneFull, OneMiner)
-	client := n[0].FullNode.(*impl.FullNodeAPI)
-	miner := sn[0]
-
-	addrinfo, err := client.NetAddrsListen(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err := miner.NetConnect(ctx, addrinfo); err != nil {
-		t.Fatal(err)
-	}
-	time.Sleep(time.Second)
-
-	mine := int64(1)
-	done := make(chan struct{})
-
-	go func() {
-		defer close(done)
-		for atomic.LoadInt64(&mine) == 1 {
-			time.Sleep(blocktime)
-			if err := sn[0].MineOne(ctx, MineNext); err != nil {
-				t.Error(err)
-			}
-		}
-	}()
-
-	MakeDeal(t, ctx, 6, client, miner, false, false)
-	MakeDeal(t, ctx, 7, client, miner, false, false)
-
-	atomic.AddInt64(&mine, -1)
-	fmt.Println("shutting down mining")
-	<-done
+	MakeDeal(t, s.ctx, 6, s.client, s.miner, false, false, startEpoch)
+	MakeDeal(t, s.ctx, 7, s.client, s.miner, false, false, startEpoch)
 }

-func MakeDeal(t *testing.T, ctx context.Context, rseed int, client api.FullNode, miner TestStorageNode, carExport, fastRet bool) {
-	res, data, err := CreateClientFile(ctx, client, rseed)
+func MakeDeal(t *testing.T, ctx context.Context, rseed int, client api.FullNode, miner TestStorageNode, carExport, fastRet bool, startEpoch abi.ChainEpoch) {
+	res, data, err := CreateClientFile(ctx, client, rseed, 0)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -114,11 +61,11 @@ func MakeDeal(t *testing.T, ctx context.Context, rseed int, client api.FullNode,
 	fcid := res.Root
 	fmt.Println("FILE CID: ", fcid)

-	deal := startDeal(t, ctx, miner, client, fcid, fastRet)
+	deal := startDeal(t, ctx, miner, client, fcid, fastRet, startEpoch)

 	// TODO: this sleep is only necessary because deals don't immediately get logged in the dealstore, we should fix this
 	time.Sleep(time.Second)
-	waitDealSealed(t, ctx, miner, client, deal, false)
+	waitDealSealed(t, ctx, miner, client, deal, false, false, nil)

 	// Retrieval
 	info, err := client.ClientGetDealInfo(ctx, *deal)
@@ -127,8 +74,11 @@ func MakeDeal(t *testing.T, ctx context.Context, rseed int, client api.FullNode,
 	testRetrieval(t, ctx, client, fcid, &info.PieceCID, carExport, data)
 }

-func CreateClientFile(ctx context.Context, client api.FullNode, rseed int) (*api.ImportRes, []byte, error) {
-	data := make([]byte, 1600)
+func CreateClientFile(ctx context.Context, client api.FullNode, rseed, size int) (*api.ImportRes, []byte, error) {
+	if size == 0 {
+		size = 1600
+	}
+	data := make([]byte, size)
 	rand.New(rand.NewSource(int64(rseed))).Read(data)

 	dir, err := ioutil.TempDir(os.TempDir(), "test-make-deal-")
@@ -149,96 +99,239 @@ func CreateClientFile(ctx context.Context, client api.FullNode, rseed int) (*api
 	return res, data, nil
 }

-func TestFastRetrievalDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration) {
+func TestPublishDealsBatching(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	publishPeriod := 10 * time.Second
+	maxDealsPerMsg := uint64(2)

-	ctx := context.Background()
-	n, sn := b(t, OneFull, OneMiner)
+	// Set max deals per publish deals message to 2
+	minerDef := []StorageMiner{{
+		Full: 0,
+		Opts: node.Override(
+			new(*storageadapter.DealPublisher),
+			storageadapter.NewDealPublisher(nil, storageadapter.PublishMsgConfig{
+				Period:         publishPeriod,
+				MaxDealsPerMsg: maxDealsPerMsg,
+			})),
+		Preseal: PresealGenesis,
+	}}
+
+	// Create a connect client and miner node
+	n, sn := b(t, OneFull, minerDef)
 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]
+	s := connectAndStartMining(t, b, blocktime, client, miner)
+	defer s.blockMiner.Stop()

-	addrinfo, err := client.NetAddrsListen(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
+	// Starts a deal and waits until it's published
+	runDealTillPublish := func(rseed int) {
+		res, _, err := CreateClientFile(s.ctx, s.client, rseed, 0)
+		require.NoError(t, err)

-	if err := miner.NetConnect(ctx, addrinfo); err != nil {
-		t.Fatal(err)
-	}
-	time.Sleep(time.Second)
+		upds, err := client.ClientGetDealUpdates(s.ctx)
+		require.NoError(t, err)

-	mine := int64(1)
-	done := make(chan struct{})
-	go func() {
-		defer close(done)
-		for atomic.LoadInt64(&mine) == 1 {
-			time.Sleep(blocktime)
-			if err := sn[0].MineOne(ctx, MineNext); err != nil {
-				t.Error(err)
+		startDeal(t, s.ctx, s.miner, s.client, res.Root, false, startEpoch)
+
+		// TODO: this sleep is only necessary because deals don't immediately get logged in the dealstore, we should fix this
+		time.Sleep(time.Second)
+
+		done := make(chan struct{})
+		go func() {
+			for upd := range upds {
+				if upd.DataRef.Root == res.Root && upd.State == storagemarket.StorageDealAwaitingPreCommit {
+					done <- struct{}{}
+				}
 			}
+		}()
+		<-done
+	}
+
+	// Run three deals in parallel
+	done := make(chan struct{}, maxDealsPerMsg+1)
+	for rseed := 1; rseed <= 3; rseed++ {
+		rseed := rseed
+		go func() {
+			runDealTillPublish(rseed)
+			done <- struct{}{}
+		}()
+	}
+
+	// Wait for two of the deals to be published
+	for i := 0; i < int(maxDealsPerMsg); i++ {
+		<-done
+	}
+
+	// Expect a single PublishStorageDeals message that includes the first two deals
+	msgCids, err := s.client.StateListMessages(s.ctx, &api.MessageMatch{To: market.Address}, types.EmptyTSK, 1)
+	require.NoError(t, err)
+	count := 0
+	for _, msgCid := range msgCids {
+		msg, err := s.client.ChainGetMessage(s.ctx, msgCid)
+		require.NoError(t, err)
+
+		if msg.Method == market.Methods.PublishStorageDeals {
+			count++
+			var pubDealsParams market2.PublishStorageDealsParams
+			err = pubDealsParams.UnmarshalCBOR(bytes.NewReader(msg.Params))
+			require.NoError(t, err)
+			require.Len(t, pubDealsParams.Deals, int(maxDealsPerMsg))
 		}
-	}()
+	}
+	require.Equal(t, 1, count)
+
+	// The third deal should be published once the publish period expires.
+	// Allow a little padding as it takes a moment for the state change to
+	// be noticed by the client.
+	padding := 10 * time.Second
+	select {
+	case <-time.After(publishPeriod + padding):
+		require.Fail(t, "Expected 3rd deal to be published once publish period elapsed")
+	case <-done: // Success
+	}
+}
+
+func TestBatchDealInput(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	run := func(piece, deals, expectSectors int) func(t *testing.T) {
+		return func(t *testing.T) {
+			publishPeriod := 10 * time.Second
+			maxDealsPerMsg := uint64(deals)
+
+			// Set max deals per publish deals message to maxDealsPerMsg
+			minerDef := []StorageMiner{{
+				Full: 0,
+				Opts: node.Options(
+					node.Override(
+						new(*storageadapter.DealPublisher),
+						storageadapter.NewDealPublisher(nil, storageadapter.PublishMsgConfig{
+							Period:         publishPeriod,
+							MaxDealsPerMsg: maxDealsPerMsg,
+						})),
+					node.Override(new(dtypes.GetSealingConfigFunc), func() (dtypes.GetSealingConfigFunc, error) {
+						return func() (sealiface.Config, error) {
+							return sealiface.Config{
+								MaxWaitDealsSectors:       2,
+								MaxSealingSectors:         1,
+								MaxSealingSectorsForDeals: 3,
+								AlwaysKeepUnsealedCopy:    true,
+								WaitDealsDelay:            time.Hour,
+							}, nil
+						}, nil
+					}),
+				),
+				Preseal: PresealGenesis,
+			}}
+
+			// Create a connect client and miner node
+			n, sn := b(t, OneFull, minerDef)
+			client := n[0].FullNode.(*impl.FullNodeAPI)
+			miner := sn[0]
+			s := connectAndStartMining(t, b, blocktime, client, miner)
+			defer s.blockMiner.Stop()
+
+			err := miner.MarketSetAsk(s.ctx, big.Zero(), big.Zero(), 200, 128, 32<<30)
+			require.NoError(t, err)
+
+			checkNoPadding := func() {
+				sl, err := sn[0].SectorsList(s.ctx)
+				require.NoError(t, err)
+
+				sort.Slice(sl, func(i, j int) bool {
+					return sl[i] < sl[j]
+				})
+
+				for _, snum := range sl {
+					si, err := sn[0].SectorsStatus(s.ctx, snum, false)
+					require.NoError(t, err)
+
+					// fmt.Printf("S %d: %+v %s\n", snum, si.Deals, si.State)
+
+					for _, deal := range si.Deals {
+						if deal == 0 {
+							fmt.Printf("sector %d had a padding piece!\n", snum)
+						}
+					}
+				}
+			}
+
+			// Starts a deal and waits until it's published
+			runDealTillSeal := func(rseed int) {
+				res, _, err := CreateClientFile(s.ctx, s.client, rseed, piece)
+				require.NoError(t, err)
+
+				dc := startDeal(t, s.ctx, s.miner, s.client, res.Root, false, startEpoch)
+				waitDealSealed(t, s.ctx, s.miner, s.client, dc, false, true, checkNoPadding)
+			}
+
+			// Run maxDealsPerMsg deals in parallel
+			done := make(chan struct{}, maxDealsPerMsg)
+			for rseed := 0; rseed < int(maxDealsPerMsg); rseed++ {
+				rseed := rseed
+				go func() {
+					runDealTillSeal(rseed)
+					done <- struct{}{}
+				}()
+			}
+
+			// Wait for maxDealsPerMsg of the deals to be published
+			for i := 0; i < int(maxDealsPerMsg); i++ {
+				<-done
+			}
+
+			checkNoPadding()
+
+			sl, err := sn[0].SectorsList(s.ctx)
+			require.NoError(t, err)
+			require.Equal(t, len(sl), expectSectors)
+		}
+	}
+
+	t.Run("4-p1600B", run(1600, 4, 4))
+	t.Run("4-p513B", run(513, 4, 2))
+	if !testing.Short() {
+		t.Run("32-p257B", run(257, 32, 8))
+		t.Run("32-p10B", run(10, 32, 2))
+
+		// fixme: this appears to break data-transfer / markets in some really creative ways
+		//t.Run("128-p10B", run(10, 128, 8))
+	}
+}
+
+func TestFastRetrievalDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()

 	data := make([]byte, 1600)
 	rand.New(rand.NewSource(int64(8))).Read(data)

 	r := bytes.NewReader(data)
-	fcid, err := client.ClientImportLocal(ctx, r)
+	fcid, err := s.client.ClientImportLocal(s.ctx, r)
 	if err != nil {
 		t.Fatal(err)
 	}

 	fmt.Println("FILE CID: ", fcid)

-	deal := startDeal(t, ctx, miner, client, fcid, true)
+	deal := startDeal(t, s.ctx, s.miner, s.client, fcid, true, startEpoch)

-	waitDealPublished(t, ctx, miner, deal)
+	waitDealPublished(t, s.ctx, s.miner, deal)
 	fmt.Println("deal published, retrieving")
 	// Retrieval
-	info, err := client.ClientGetDealInfo(ctx, *deal)
+	info, err := s.client.ClientGetDealInfo(s.ctx, *deal)
 	require.NoError(t, err)

-	testRetrieval(t, ctx, client, fcid, &info.PieceCID, false, data)
-	atomic.AddInt64(&mine, -1)
-	fmt.Println("shutting down mining")
-	<-done
+	testRetrieval(t, s.ctx, s.client, fcid, &info.PieceCID, false, data)
 }

-func TestSenondDealRetrieval(t *testing.T, b APIBuilder, blocktime time.Duration) {
-
-	ctx := context.Background()
-	n, sn := b(t, OneFull, OneMiner)
-	client := n[0].FullNode.(*impl.FullNodeAPI)
-	miner := sn[0]
-
-	addrinfo, err := client.NetAddrsListen(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err := miner.NetConnect(ctx, addrinfo); err != nil {
-		t.Fatal(err)
-	}
-	time.Sleep(time.Second)
-
-	mine := int64(1)
-	done := make(chan struct{})
-
-	go func() {
-		defer close(done)
-		for atomic.LoadInt64(&mine) == 1 {
-			time.Sleep(blocktime)
-			if err := sn[0].MineOne(ctx, MineNext); err != nil {
-				t.Error(err)
-			}
-		}
-	}()
+func TestSecondDealRetrieval(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()

 	{
 		data1 := make([]byte, 800)
 		rand.New(rand.NewSource(int64(3))).Read(data1)
 		r := bytes.NewReader(data1)

-		fcid1, err := client.ClientImportLocal(ctx, r)
+		fcid1, err := s.client.ClientImportLocal(s.ctx, r)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -247,38 +340,49 @@ func TestSenondDealRetrieval(t *testing.T, b APIBuilder, blocktime time.Duration
 		rand.New(rand.NewSource(int64(9))).Read(data2)
 		r2 := bytes.NewReader(data2)

-		fcid2, err := client.ClientImportLocal(ctx, r2)
+		fcid2, err := s.client.ClientImportLocal(s.ctx, r2)
 		if err != nil {
 			t.Fatal(err)
 		}

-		deal1 := startDeal(t, ctx, miner, client, fcid1, true)
+		deal1 := startDeal(t, s.ctx, s.miner, s.client, fcid1, true, 0)

 		// TODO: this sleep is only necessary because deals don't immediately get logged in the dealstore, we should fix this
 		time.Sleep(time.Second)
-		waitDealSealed(t, ctx, miner, client, deal1, true)
+		waitDealSealed(t, s.ctx, s.miner, s.client, deal1, true, false, nil)

-		deal2 := startDeal(t, ctx, miner, client, fcid2, true)
+		deal2 := startDeal(t, s.ctx, s.miner, s.client, fcid2, true, 0)

 		time.Sleep(time.Second)
-		waitDealSealed(t, ctx, miner, client, deal2, false)
+		waitDealSealed(t, s.ctx, s.miner, s.client, deal2, false, false, nil)

 		// Retrieval
-		info, err := client.ClientGetDealInfo(ctx, *deal2)
+		info, err := s.client.ClientGetDealInfo(s.ctx, *deal2)
 		require.NoError(t, err)

-		rf, _ := miner.SectorsRefs(ctx)
+		rf, _ := s.miner.SectorsRefs(s.ctx)
 		fmt.Printf("refs: %+v\n", rf)

-		testRetrieval(t, ctx, client, fcid2, &info.PieceCID, false, data2)
+		testRetrieval(t, s.ctx, s.client, fcid2, &info.PieceCID, false, data2)
 	}
-
-	atomic.AddInt64(&mine, -1)
-	fmt.Println("shutting down mining")
-	<-done
 }

-func startDeal(t *testing.T, ctx context.Context, miner TestStorageNode, client api.FullNode, fcid cid.Cid, fastRet bool) *cid.Cid {
+func TestZeroPricePerByteRetrievalDealFlow(t *testing.T, b APIBuilder, blocktime time.Duration, startEpoch abi.ChainEpoch) {
+	s := setupOneClientOneMiner(t, b, blocktime)
+	defer s.blockMiner.Stop()
+
+	// Set price-per-byte to zero
+	ask, err := s.miner.MarketGetRetrievalAsk(s.ctx)
+	require.NoError(t, err)
+
+	ask.PricePerByte = abi.NewTokenAmount(0)
+	err = s.miner.MarketSetRetrievalAsk(s.ctx, ask)
+	require.NoError(t, err)
+
+	MakeDeal(t, s.ctx, 6, s.client, s.miner, false, false, startEpoch)
+}
+
+func startDeal(t *testing.T, ctx context.Context, miner TestStorageNode, client api.FullNode, fcid cid.Cid, fastRet bool, startEpoch abi.ChainEpoch) *cid.Cid {
 	maddr, err := miner.ActorAddress(ctx)
 	if err != nil {
 		t.Fatal(err)
@@ -296,6 +400,7 @@ func startDeal(t *testing.T, ctx context.Context, miner TestStorageNode, client
 		Wallet:            addr,
 		Miner:             maddr,
 		EpochPrice:        types.NewInt(1000000),
+		DealStartEpoch:    startEpoch,
 		MinBlocksDuration: uint64(build.MinDealDuration),
 		FastRetrieval:     fastRet,
 	})
@@ -305,7 +410,7 @@ func startDeal(t *testing.T, ctx context.Context, miner TestStorageNode, client
 	return deal
 }

-func waitDealSealed(t *testing.T, ctx context.Context, miner TestStorageNode, client api.FullNode, deal *cid.Cid, noseal bool) {
+func waitDealSealed(t *testing.T, ctx context.Context, miner TestStorageNode, client api.FullNode, deal *cid.Cid, noseal, noSealStart bool, cb func()) {
 loop:
 	for {
 		di, err := client.ClientGetDealInfo(ctx, *deal)
@@ -313,11 +418,13 @@ loop:
 			t.Fatal(err)
 		}
 		switch di.State {
-		case storagemarket.StorageDealSealing:
+		case storagemarket.StorageDealAwaitingPreCommit, storagemarket.StorageDealSealing:
 			if noseal {
 				return
 			}
-			startSealingWaiting(t, ctx, miner)
+			if !noSealStart {
+				startSealingWaiting(t, ctx, miner)
+			}
 		case storagemarket.StorageDealProposalRejected:
 			t.Fatal("deal rejected")
 		case storagemarket.StorageDealFailing:
@@ -328,8 +435,25 @@ loop:
 			fmt.Println("COMPLETE", di)
 			break loop
 		}
-		fmt.Println("Deal state: ", storagemarket.DealStates[di.State])
+
+		mds, err := miner.MarketListIncompleteDeals(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		var minerState storagemarket.StorageDealStatus
+		for _, md := range mds {
+			if md.DealID == di.DealID {
+				minerState = md.State
+				break
+			}
+		}
+
+		fmt.Printf("Deal %d state: client:%s provider:%s\n", di.DealID, storagemarket.DealStates[di.State], storagemarket.DealStates[minerState])
 		time.Sleep(time.Second / 2)
+		if cb != nil {
+			cb()
+		}
 	}
 }

@@ -353,7 +477,7 @@ func waitDealPublished(t *testing.T, ctx context.Context, miner TestStorageNode,
 					t.Fatal("deal failed")
 				case storagemarket.StorageDealError:
 					t.Fatal("deal errored", di.Message)
-				case storagemarket.StorageDealFinalizing, storagemarket.StorageDealSealing, storagemarket.StorageDealActive:
+				case storagemarket.StorageDealFinalizing, storagemarket.StorageDealAwaitingPreCommit, storagemarket.StorageDealSealing, storagemarket.StorageDealActive:
 					fmt.Println("COMPLETE", di)
 					return
 				}
@@ -371,11 +495,13 @@ func startSealingWaiting(t *testing.T, ctx context.Context, miner TestStorageNod
 		si, err := miner.SectorsStatus(ctx, snum, false)
 		require.NoError(t, err)

-		t.Logf("Sector state: %s", si.State)
+		t.Logf("Sector %d state: %s", snum, si.State)
 		if si.State == api.SectorState(sealing.WaitDeals) {
 			require.NoError(t, miner.SectorStartSealing(ctx, snum))
 		}
 	}
+
+	flushSealingBatches(t, ctx, miner)
 }

 func testRetrieval(t *testing.T, ctx context.Context, client api.FullNode, fcid cid.Cid, piece *cid.Cid, carExport bool, data []byte) {
@@ -456,3 +582,40 @@ func extractCarData(t *testing.T, ctx context.Context, rdata []byte, rpath strin
 	}
 	return rdata
 }
+
+type dealsScaffold struct {
+	ctx        context.Context
+	client     *impl.FullNodeAPI
+	miner      TestStorageNode
+	blockMiner *BlockMiner
+}
+
+func setupOneClientOneMiner(t *testing.T, b APIBuilder, blocktime time.Duration) *dealsScaffold {
+	n, sn := b(t, OneFull, OneMiner)
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+	return connectAndStartMining(t, b, blocktime, client, miner)
+}
+
+func connectAndStartMining(t *testing.T, b APIBuilder, blocktime time.Duration, client *impl.FullNodeAPI, miner TestStorageNode) *dealsScaffold {
+	ctx := context.Background()
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	time.Sleep(time.Second)
+
+	blockMiner := NewBlockMiner(ctx, t, miner, blocktime)
+	blockMiner.MineBlocks()
+
+	return &dealsScaffold{
+		ctx:        ctx,
+		client:     client,
+		miner:      miner,
+		blockMiner: blockMiner,
+	}
+}
@@ -11,10 +11,13 @@ import (

 	logging "github.com/ipfs/go-log/v2"

-	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/stretchr/testify/require"

+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/miner"
 	"github.com/filecoin-project/lotus/node/impl"
 )
@@ -58,14 +61,11 @@ func (ts *testSuite) testMiningReal(t *testing.T) {

 	newHeads, err := api.ChainNotify(ctx)
 	require.NoError(t, err)
-	initHead := (<-newHeads)[0]
-	if initHead.Val.Height() != 2 {
-		<-newHeads
-	}
+	at := (<-newHeads)[0].Val.Height()

 	h1, err := api.ChainHead(ctx)
 	require.NoError(t, err)
-	require.Equal(t, abi.ChainEpoch(2), h1.Height())
+	require.Equal(t, int64(at), int64(h1.Height()))

 	MineUntilBlock(ctx, t, apis[0], sn[0], nil)
 	require.NoError(t, err)
@@ -74,16 +74,16 @@ func (ts *testSuite) testMiningReal(t *testing.T) {

 	h2, err := api.ChainHead(ctx)
 	require.NoError(t, err)
-	require.Equal(t, abi.ChainEpoch(3), h2.Height())
+	require.Greater(t, int64(h2.Height()), int64(h1.Height()))

 	MineUntilBlock(ctx, t, apis[0], sn[0], nil)
 	require.NoError(t, err)

 	<-newHeads

-	h2, err = api.ChainHead(ctx)
+	h3, err := api.ChainHead(ctx)
 	require.NoError(t, err)
-	require.Equal(t, abi.ChainEpoch(4), h2.Height())
+	require.Greater(t, int64(h3.Height()), int64(h2.Height()))
 }

 func TestDealMining(t *testing.T, b APIBuilder, blocktime time.Duration, carExport bool) {
@@ -189,12 +189,12 @@ func TestDealMining(t *testing.T, b APIBuilder, blocktime time.Duration, carExpo
 		}
 	}()

-	deal := startDeal(t, ctx, provider, client, fcid, false)
+	deal := startDeal(t, ctx, provider, client, fcid, false, 0)

 	// TODO: this sleep is only necessary because deals don't immediately get logged in the dealstore, we should fix this
 	time.Sleep(time.Second)

-	waitDealSealed(t, ctx, provider, client, deal, false)
+	waitDealSealed(t, ctx, provider, client, deal, false, false, nil)

 	<-minedTwo

@@ -202,3 +202,39 @@ func TestDealMining(t *testing.T, b APIBuilder, blocktime time.Duration, carExpo
 	fmt.Println("shutting down mining")
 	<-done
 }
+
+func (ts *testSuite) testNonGenesisMiner(t *testing.T) {
+	ctx := context.Background()
+	n, sn := ts.makeNodes(t, []FullNodeOpts{
+		FullNodeWithLatestActorsAt(-1),
+	}, []StorageMiner{
+		{Full: 0, Preseal: PresealGenesis},
+	})
+
+	full, ok := n[0].FullNode.(*impl.FullNodeAPI)
+	if !ok {
+		t.Skip("not testing with a full node")
+		return
+	}
+	genesisMiner := sn[0]
+
+	bm := NewBlockMiner(ctx, t, genesisMiner, 4*time.Millisecond)
+	bm.MineBlocks()
+	t.Cleanup(bm.Stop)
+
+	gaa, err := genesisMiner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	gmi, err := full.StateMinerInfo(ctx, gaa, types.EmptyTSK)
+	require.NoError(t, err)
+
+	testm := n[0].Stb(ctx, t, TestSpt, gmi.Owner)
+
+	ta, err := testm.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	tid, err := address.IDFromAddress(ta)
+	require.NoError(t, err)
+
+	require.Equal(t, uint64(1001), tid)
+}
@@ -15,7 +15,7 @@ import (
 	cbor "github.com/ipfs/go-ipld-cbor"

 	"github.com/filecoin-project/lotus/api"
-	"github.com/filecoin-project/lotus/api/apibstore"
+	"github.com/filecoin-project/lotus/blockstore"
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
@@ -132,7 +132,7 @@ func TestPaymentChannels(t *testing.T, b APIBuilder, blocktime time.Duration) {
 		t.Fatal("Unable to settle payment channel")
 	}

-	creatorStore := adt.WrapStore(ctx, cbor.NewCborStore(apibstore.NewAPIBlockstore(paymentCreator)))
+	creatorStore := adt.WrapStore(ctx, cbor.NewCborStore(blockstore.NewAPIBlockstore(paymentCreator)))

 	// wait for the receiver to submit their vouchers
 	ev := events.NewEvents(ctx, paymentCreator)
@@ -235,7 +235,7 @@ func TestPaymentChannels(t *testing.T, b APIBuilder, blocktime time.Duration) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	res, err = paymentReceiver.StateWaitMsg(ctx, collectMsg, 3)
+	res, err = paymentReceiver.StateWaitMsg(ctx, collectMsg, 3, api.LookbackNoLimit, true)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -287,7 +287,7 @@ func waitForBlocks(ctx context.Context, t *testing.T, bm *BlockMiner, paymentRec
 			t.Fatal(err)
 		}

-		_, err = paymentReceiver.StateWaitMsg(ctx, m.Cid(), 1)
+		_, err = paymentReceiver.StateWaitMsg(ctx, m.Cid(), 1, api.LookbackNoLimit, true)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -299,7 +299,7 @@ func waitForMessage(ctx context.Context, t *testing.T, paymentCreator TestNode,
 	defer cancel()

 	fmt.Println("Waiting for", desc)
-	res, err := paymentCreator.StateWaitMsg(ctx, msgCid, 1)
+	res, err := paymentCreator.StateWaitMsg(ctx, msgCid, 1, api.LookbackNoLimit, true)
 	if err != nil {
 		fmt.Println("Error waiting for", desc, err)
 		t.Fatal(err)
@@ -0,0 +1,389 @@
+package test
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/network"
+
+	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/stmgr"
+	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
+	bminer "github.com/filecoin-project/lotus/miner"
+	"github.com/filecoin-project/lotus/node"
+	"github.com/filecoin-project/lotus/node/impl"
+)
+
+func TestSDRUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithSDRAt(500, 1000)}, OneMiner)
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	build.Clock.Sleep(time.Second)
+
+	pledge := make(chan struct{})
+	mine := int64(1)
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		round := 0
+		for atomic.LoadInt64(&mine) != 0 {
+			build.Clock.Sleep(blocktime)
+			if err := sn[0].MineOne(ctx, bminer.MineReq{Done: func(bool, abi.ChainEpoch, error) {
+
+			}}); err != nil {
+				t.Error(err)
+			}
+
+			// 3 sealing rounds: before, during after.
+			if round >= 3 {
+				continue
+			}
+
+			head, err := client.ChainHead(ctx)
+			assert.NoError(t, err)
+
+			// rounds happen every 100 blocks, with a 50 block offset.
+			if head.Height() >= abi.ChainEpoch(round*500+50) {
+				round++
+				pledge <- struct{}{}
+
+				ver, err := client.StateNetworkVersion(ctx, head.Key())
+				assert.NoError(t, err)
+				switch round {
+				case 1:
+					assert.Equal(t, network.Version6, ver)
+				case 2:
+					assert.Equal(t, network.Version7, ver)
+				case 3:
+					assert.Equal(t, network.Version8, ver)
+				}
+			}
+
+		}
+	}()
+
+	// before.
+	pledgeSectors(t, ctx, miner, 9, 0, pledge)
+
+	s, err := miner.SectorsList(ctx)
+	require.NoError(t, err)
+	sort.Slice(s, func(i, j int) bool {
+		return s[i] < s[j]
+	})
+
+	for i, id := range s {
+		info, err := miner.SectorsStatus(ctx, id, true)
+		require.NoError(t, err)
+		expectProof := abi.RegisteredSealProof_StackedDrg2KiBV1
+		if i >= 3 {
+			// after
+			expectProof = abi.RegisteredSealProof_StackedDrg2KiBV1_1
+		}
+		assert.Equal(t, expectProof, info.SealProof, "sector %d, id %d", i, id)
+	}
+
+	atomic.StoreInt64(&mine, 0)
+	<-done
+}
+
+func TestPledgeBatching(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithLatestActorsAt(-1)}, OneMiner)
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	build.Clock.Sleep(time.Second)
+
+	mine := int64(1)
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for atomic.LoadInt64(&mine) != 0 {
+			build.Clock.Sleep(blocktime)
+			if err := sn[0].MineOne(ctx, bminer.MineReq{Done: func(bool, abi.ChainEpoch, error) {
+
+			}}); err != nil {
+				t.Error(err)
+			}
+		}
+	}()
+
+	for {
+		h, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+		if h.Height() > 10 {
+			break
+		}
+	}
+
+	toCheck := startPledge(t, ctx, miner, nSectors, 0, nil)
+
+	for len(toCheck) > 0 {
+		states := map[api.SectorState]int{}
+
+		for n := range toCheck {
+			st, err := miner.SectorsStatus(ctx, n, false)
+			require.NoError(t, err)
+			states[st.State]++
+			if st.State == api.SectorState(sealing.Proving) {
+				delete(toCheck, n)
+			}
+			if strings.Contains(string(st.State), "Fail") {
+				t.Fatal("sector in a failed state", st.State)
+			}
+		}
+		if states[api.SectorState(sealing.SubmitPreCommitBatch)] == nSectors ||
+			(states[api.SectorState(sealing.SubmitPreCommitBatch)] > 0 && states[api.SectorState(sealing.PreCommit1)] == 0 && states[api.SectorState(sealing.PreCommit2)] == 0) {
+			pcb, err := miner.SectorPreCommitFlush(ctx)
+			require.NoError(t, err)
+			if pcb != nil {
+				fmt.Printf("PRECOMMIT BATCH: %+v\n", pcb)
+			}
+		}
+
+		if states[api.SectorState(sealing.SubmitCommitAggregate)] == nSectors ||
+			(states[api.SectorState(sealing.SubmitCommitAggregate)] > 0 && states[api.SectorState(sealing.WaitSeed)] == 0 && states[api.SectorState(sealing.Committing)] == 0) {
+			cb, err := miner.SectorCommitFlush(ctx)
+			require.NoError(t, err)
+			if cb != nil {
+				fmt.Printf("COMMIT BATCH: %+v\n", cb)
+			}
+		}
+
+		build.Clock.Sleep(100 * time.Millisecond)
+		fmt.Printf("WaitSeal: %d %+v\n", len(toCheck), states)
+	}
+
+	atomic.StoreInt64(&mine, 0)
+	<-done
+}
+
+func TestPledgeBeforeNv13(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{
+		{
+			Opts: func(nodes []TestNode) node.Option {
+				return node.Override(new(stmgr.UpgradeSchedule), stmgr.UpgradeSchedule{{
+					Network:   network.Version9,
+					Height:    1,
+					Migration: stmgr.UpgradeActorsV2,
+				}, {
+					Network:   network.Version10,
+					Height:    2,
+					Migration: stmgr.UpgradeActorsV3,
+				}, {
+					Network:   network.Version12,
+					Height:    3,
+					Migration: stmgr.UpgradeActorsV4,
+				}, {
+					Network:   network.Version13,
+					Height:    1000000000,
+					Migration: stmgr.UpgradeActorsV5,
+				}})
+			},
+		},
+	}, OneMiner)
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	build.Clock.Sleep(time.Second)
+
+	mine := int64(1)
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for atomic.LoadInt64(&mine) != 0 {
+			build.Clock.Sleep(blocktime)
+			if err := sn[0].MineOne(ctx, bminer.MineReq{Done: func(bool, abi.ChainEpoch, error) {
+
+			}}); err != nil {
+				t.Error(err)
+			}
+		}
+	}()
+
+	for {
+		h, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+		if h.Height() > 10 {
+			break
+		}
+	}
+
+	toCheck := startPledge(t, ctx, miner, nSectors, 0, nil)
+
+	for len(toCheck) > 0 {
+		states := map[api.SectorState]int{}
+
+		for n := range toCheck {
+			st, err := miner.SectorsStatus(ctx, n, false)
+			require.NoError(t, err)
+			states[st.State]++
+			if st.State == api.SectorState(sealing.Proving) {
+				delete(toCheck, n)
+			}
+			if strings.Contains(string(st.State), "Fail") {
+				t.Fatal("sector in a failed state", st.State)
+			}
+		}
+
+		build.Clock.Sleep(100 * time.Millisecond)
+		fmt.Printf("WaitSeal: %d %+v\n", len(toCheck), states)
+	}
+
+	atomic.StoreInt64(&mine, 0)
+	<-done
+}
+
+func TestPledgeSector(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, OneFull, OneMiner)
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	build.Clock.Sleep(time.Second)
+
+	mine := int64(1)
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for atomic.LoadInt64(&mine) != 0 {
+			build.Clock.Sleep(blocktime)
+			if err := sn[0].MineOne(ctx, bminer.MineReq{Done: func(bool, abi.ChainEpoch, error) {
+
+			}}); err != nil {
+				t.Error(err)
+			}
+		}
+	}()
+
+	pledgeSectors(t, ctx, miner, nSectors, 0, nil)
+
+	atomic.StoreInt64(&mine, 0)
+	<-done
+}
+
+func flushSealingBatches(t *testing.T, ctx context.Context, miner TestStorageNode) {
+	pcb, err := miner.SectorPreCommitFlush(ctx)
+	require.NoError(t, err)
+	if pcb != nil {
+		fmt.Printf("PRECOMMIT BATCH: %+v\n", pcb)
+	}
+
+	cb, err := miner.SectorCommitFlush(ctx)
+	require.NoError(t, err)
+	if cb != nil {
+		fmt.Printf("COMMIT BATCH: %+v\n", cb)
+	}
+}
+
+func startPledge(t *testing.T, ctx context.Context, miner TestStorageNode, n, existing int, blockNotif <-chan struct{}) map[abi.SectorNumber]struct{} {
+	for i := 0; i < n; i++ {
+		if i%3 == 0 && blockNotif != nil {
+			<-blockNotif
+			log.Errorf("WAIT")
+		}
+		log.Errorf("PLEDGING %d", i)
+		_, err := miner.PledgeSector(ctx)
+		require.NoError(t, err)
+	}
+
+	for {
+		s, err := miner.SectorsList(ctx) // Note - the test builder doesn't import genesis sectors into FSM
+		require.NoError(t, err)
+		fmt.Printf("Sectors: %d\n", len(s))
+		if len(s) >= n+existing {
+			break
+		}
+
+		build.Clock.Sleep(100 * time.Millisecond)
+	}
+
+	fmt.Printf("All sectors is fsm\n")
+
+	s, err := miner.SectorsList(ctx)
+	require.NoError(t, err)
+
+	toCheck := map[abi.SectorNumber]struct{}{}
+	for _, number := range s {
+		toCheck[number] = struct{}{}
+	}
+
+	return toCheck
+}
+
+func pledgeSectors(t *testing.T, ctx context.Context, miner TestStorageNode, n, existing int, blockNotif <-chan struct{}) {
+	toCheck := startPledge(t, ctx, miner, n, existing, blockNotif)
+
+	for len(toCheck) > 0 {
+		flushSealingBatches(t, ctx, miner)
+
+		states := map[api.SectorState]int{}
+		for n := range toCheck {
+			st, err := miner.SectorsStatus(ctx, n, false)
+			require.NoError(t, err)
+			states[st.State]++
+			if st.State == api.SectorState(sealing.Proving) {
+				delete(toCheck, n)
+			}
+			if strings.Contains(string(st.State), "Fail") {
+				t.Fatal("sector in a failed state", st.State)
+			}
+		}
+
+		build.Clock.Sleep(100 * time.Millisecond)
+		fmt.Printf("WaitSeal: %d %+v\n", len(toCheck), states)
+	}
+}
@@ -6,7 +6,6 @@ import (
 	"testing"
 	"time"

-	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
@@ -18,7 +17,9 @@ import (
 )

 func TestTapeFix(t *testing.T, b APIBuilder, blocktime time.Duration) {
-	t.Run("before", func(t *testing.T) { testTapeFix(t, b, blocktime, false) })
+	// The "before" case is disabled, because we need the builder to mock 32 GiB sectors to accurately repro this case
+	// TODO: Make the mock sector size configurable and reenable this
+	//t.Run("before", func(t *testing.T) { testTapeFix(t, b, blocktime, false) })
 	t.Run("after", func(t *testing.T) { testTapeFix(t, b, blocktime, true) })
 }
 func testTapeFix(t *testing.T, b APIBuilder, blocktime time.Duration, after bool) {
@@ -73,23 +74,9 @@ func testTapeFix(t *testing.T, b APIBuilder, blocktime time.Duration, after bool
 		<-done
 	}()

-	err = miner.PledgeSector(ctx)
+	sid, err := miner.PledgeSector(ctx)
 	require.NoError(t, err)

-	// Wait till done.
-	var sectorNo abi.SectorNumber
-	for {
-		s, err := miner.SectorsList(ctx) // Note - the test builder doesn't import genesis sectors into FSM
-		require.NoError(t, err)
-		fmt.Printf("Sectors: %d\n", len(s))
-		if len(s) == 1 {
-			sectorNo = s[0]
-			break
-		}
-
-		build.Clock.Sleep(100 * time.Millisecond)
-	}
-
 	fmt.Printf("All sectors is fsm\n")

 	// If before, we expect the precommit to fail
@@ -101,7 +88,7 @@ func testTapeFix(t *testing.T, b APIBuilder, blocktime time.Duration, after bool
 	}

 	for {
-		st, err := miner.SectorsStatus(ctx, sectorNo, false)
+		st, err := miner.SectorsStatus(ctx, sid.Number, false)
 		require.NoError(t, err)
 		if st.State == successState {
 			break
@@ -4,23 +4,26 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
 	"testing"
 	"time"

-	"github.com/filecoin-project/lotus/chain/stmgr"
-	"github.com/filecoin-project/lotus/chain/types"
-
 	logging "github.com/ipfs/go-log/v2"
 	"github.com/multiformats/go-multiaddr"

 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

+	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/network"
-	"github.com/filecoin-project/lotus/api"
+
+	lapi "github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/api/v1api"
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/stmgr"
+	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/miner"
 	"github.com/filecoin-project/lotus/node"
 )
@@ -34,29 +37,37 @@ func init() {
 	build.InsecurePoStValidation = true
 }

+type StorageBuilder func(context.Context, *testing.T, abi.RegisteredSealProof, address.Address) TestStorageNode
+
 type TestNode struct {
-	api.FullNode
+	v1api.FullNode
 	// ListenAddr is the address on which an API server is listening, if an
 	// API server is created for this Node
 	ListenAddr multiaddr.Multiaddr
+
+	Stb StorageBuilder
 }

 type TestStorageNode struct {
-	api.StorageMiner
+	lapi.StorageMiner
 	// ListenAddr is the address on which an API server is listening, if an
 	// API server is created for this Node
 	ListenAddr multiaddr.Multiaddr

 	MineOne func(context.Context, miner.MineReq) error
+	Stop    func(context.Context) error
 }

 var PresealGenesis = -1

 const GenesisPreseals = 2

+const TestSpt = abi.RegisteredSealProof_StackedDrg2KiBV1_1
+
 // Options for setting up a mock storage miner
 type StorageMiner struct {
 	Full    int
+	Opts    node.Option
 	Preseal int
 }

@@ -91,6 +102,7 @@ func TestApis(t *testing.T, b APIBuilder) {
 	t.Run("testMining", ts.testMining)
 	t.Run("testMiningReal", ts.testMiningReal)
 	t.Run("testSearchMsg", ts.testSearchMsg)
+	t.Run("testNonGenesisMiner", ts.testNonGenesisMiner)
 }

 func DefaultFullOpts(nFull int) []FullNodeOpts {
@@ -109,14 +121,75 @@ var OneMiner = []StorageMiner{{Full: 0, Preseal: PresealGenesis}}
 var OneFull = DefaultFullOpts(1)
 var TwoFull = DefaultFullOpts(2)

-var FullNodeWithUpgradeAt = func(upgradeHeight abi.ChainEpoch) FullNodeOpts {
+var FullNodeWithLatestActorsAt = func(upgradeHeight abi.ChainEpoch) FullNodeOpts {
+	if upgradeHeight == -1 {
+		// Attention: Update this when introducing new actor versions or your tests will be sad
+		upgradeHeight = 4
+	}
+
 	return FullNodeOpts{
 		Opts: func(nodes []TestNode) node.Option {
 			return node.Override(new(stmgr.UpgradeSchedule), stmgr.UpgradeSchedule{{
-				// Skip directly to tape height so precommits work.
-				Network:   network.Version5,
-				Height:    upgradeHeight,
+				// prepare for upgrade.
+				Network:   network.Version9,
+				Height:    1,
 				Migration: stmgr.UpgradeActorsV2,
+			}, {
+				Network:   network.Version10,
+				Height:    2,
+				Migration: stmgr.UpgradeActorsV3,
+			}, {
+				Network:   network.Version12,
+				Height:    3,
+				Migration: stmgr.UpgradeActorsV4,
+			}, {
+				Network:   network.Version13,
+				Height:    upgradeHeight,
+				Migration: stmgr.UpgradeActorsV5,
+			}})
+		},
+	}
+}
+
+var FullNodeWithSDRAt = func(calico, persian abi.ChainEpoch) FullNodeOpts {
+	return FullNodeOpts{
+		Opts: func(nodes []TestNode) node.Option {
+			return node.Override(new(stmgr.UpgradeSchedule), stmgr.UpgradeSchedule{{
+				Network:   network.Version6,
+				Height:    1,
+				Migration: stmgr.UpgradeActorsV2,
+			}, {
+				Network:   network.Version7,
+				Height:    calico,
+				Migration: stmgr.UpgradeCalico,
+			}, {
+				Network: network.Version8,
+				Height:  persian,
+			}})
+		},
+	}
+}
+
+var FullNodeWithV4ActorsAt = func(upgradeHeight abi.ChainEpoch) FullNodeOpts {
+	if upgradeHeight == -1 {
+		upgradeHeight = 3
+	}
+
+	return FullNodeOpts{
+		Opts: func(nodes []TestNode) node.Option {
+			return node.Override(new(stmgr.UpgradeSchedule), stmgr.UpgradeSchedule{{
+				// prepare for upgrade.
+				Network:   network.Version9,
+				Height:    1,
+				Migration: stmgr.UpgradeActorsV2,
+			}, {
+				Network:   network.Version10,
+				Height:    2,
+				Migration: stmgr.UpgradeActorsV3,
+			}, {
+				Network:   network.Version12,
+				Height:    upgradeHeight,
+				Migration: stmgr.UpgradeActorsV4,
 			}})
 		},
 	}
@@ -128,17 +201,24 @@ var MineNext = miner.MineReq{
 }

 func (ts *testSuite) testVersion(t *testing.T) {
-	build.RunningNodeType = build.NodeFull
+	lapi.RunningNodeType = lapi.NodeFull
+	t.Cleanup(func() {
+		lapi.RunningNodeType = lapi.NodeUnknown
+	})

 	ctx := context.Background()
 	apis, _ := ts.makeNodes(t, OneFull, OneMiner)
-	api := apis[0]
+	napi := apis[0]

-	v, err := api.Version(ctx)
+	v, err := napi.Version(ctx)
 	if err != nil {
 		t.Fatal(err)
 	}
-	require.Equal(t, v.Version, build.BuildVersion)
+	versions := strings.Split(v.Version, "+")
+	if len(versions) <= 0 {
+		t.Fatal("empty version")
+	}
+	require.Equal(t, versions[0], build.BuildVersion)
 }

 func (ts *testSuite) testSearchMsg(t *testing.T) {
@@ -165,7 +245,7 @@ func (ts *testSuite) testSearchMsg(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	res, err := api.StateWaitMsg(ctx, sm.Cid(), 1)
+	res, err := api.StateWaitMsg(ctx, sm.Cid(), 1, lapi.LookbackNoLimit, true)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -173,7 +253,7 @@ func (ts *testSuite) testSearchMsg(t *testing.T) {
 		t.Fatal("did not successfully send message")
 	}

-	searchRes, err := api.StateSearchMsg(ctx, sm.Cid())
+	searchRes, err := api.StateSearchMsg(ctx, types.EmptyTSK, sm.Cid(), lapi.LookbackNoLimit, true)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -8,6 +8,7 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"

 	"github.com/filecoin-project/go-address"
+	lapi "github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/miner"
 )
@@ -28,7 +29,7 @@ func SendFunds(ctx context.Context, t *testing.T, sender TestNode, addr address.
 	if err != nil {
 		t.Fatal(err)
 	}
-	res, err := sender.StateWaitMsg(ctx, sm.Cid(), 1)
+	res, err := sender.StateWaitMsg(ctx, sm.Cid(), 1, lapi.LookbackNoLimit, true)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -3,114 +3,34 @@ package test
 import (
 	"context"
 	"fmt"
-	"sync/atomic"
-
-	"strings"
 	"testing"
 	"time"

+	"github.com/filecoin-project/go-state-types/big"
+
 	"github.com/stretchr/testify/require"

 	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-bitfield"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/crypto"
+	"github.com/filecoin-project/go-state-types/dline"
 	"github.com/filecoin-project/lotus/extern/sector-storage/mock"
 	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
+	proof3 "github.com/filecoin-project/specs-actors/v3/actors/runtime/proof"
+	"github.com/filecoin-project/specs-storage/storage"

 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors"
+	minerActor "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
-	bminer "github.com/filecoin-project/lotus/miner"
 	"github.com/filecoin-project/lotus/node/impl"
 )

-func TestPledgeSector(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	n, sn := b(t, OneFull, OneMiner)
-	client := n[0].FullNode.(*impl.FullNodeAPI)
-	miner := sn[0]
-
-	addrinfo, err := client.NetAddrsListen(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if err := miner.NetConnect(ctx, addrinfo); err != nil {
-		t.Fatal(err)
-	}
-	build.Clock.Sleep(time.Second)
-
-	mine := int64(1)
-	done := make(chan struct{})
-	go func() {
-		defer close(done)
-		for atomic.LoadInt64(&mine) != 0 {
-			build.Clock.Sleep(blocktime)
-			if err := sn[0].MineOne(ctx, bminer.MineReq{Done: func(bool, abi.ChainEpoch, error) {
-
-			}}); err != nil {
-				t.Error(err)
-			}
-		}
-	}()
-
-	pledgeSectors(t, ctx, miner, nSectors, 0, nil)
-
-	atomic.StoreInt64(&mine, 0)
-	<-done
-}
-
-func pledgeSectors(t *testing.T, ctx context.Context, miner TestStorageNode, n, existing int, blockNotif <-chan struct{}) {
-	for i := 0; i < n; i++ {
-		err := miner.PledgeSector(ctx)
-		require.NoError(t, err)
-		if i%3 == 0 && blockNotif != nil {
-			<-blockNotif
-		}
-	}
-
-	for {
-		s, err := miner.SectorsList(ctx) // Note - the test builder doesn't import genesis sectors into FSM
-		require.NoError(t, err)
-		fmt.Printf("Sectors: %d\n", len(s))
-		if len(s) >= n+existing {
-			break
-		}
-
-		build.Clock.Sleep(100 * time.Millisecond)
-	}
-
-	fmt.Printf("All sectors is fsm\n")
-
-	s, err := miner.SectorsList(ctx)
-	require.NoError(t, err)
-
-	toCheck := map[abi.SectorNumber]struct{}{}
-	for _, number := range s {
-		toCheck[number] = struct{}{}
-	}
-
-	for len(toCheck) > 0 {
-		for n := range toCheck {
-			st, err := miner.SectorsStatus(ctx, n, false)
-			require.NoError(t, err)
-			if st.State == api.SectorState(sealing.Proving) {
-				delete(toCheck, n)
-			}
-			if strings.Contains(string(st.State), "Fail") {
-				t.Fatal("sector in a failed state", st.State)
-			}
-		}
-
-		build.Clock.Sleep(100 * time.Millisecond)
-		fmt.Printf("WaitSeal: %d\n", len(s))
-	}
-}
-
 func TestWindowPost(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int) {
 	for _, height := range []abi.ChainEpoch{
-		1,    // before
+		-1,   // before
 		162,  // while sealing
 		5000, // while proving
 	} {
@@ -121,12 +41,13 @@ func TestWindowPost(t *testing.T, b APIBuilder, blocktime time.Duration, nSector
 	}

 }
+
 func testWindowPostUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration, nSectors int,
 	upgradeHeight abi.ChainEpoch) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()

-	n, sn := b(t, []FullNodeOpts{FullNodeWithUpgradeAt(upgradeHeight)}, OneMiner)
+	n, sn := b(t, []FullNodeOpts{FullNodeWithLatestActorsAt(upgradeHeight)}, OneMiner)

 	client := n[0].FullNode.(*impl.FullNodeAPI)
 	miner := sn[0]
@@ -209,15 +130,17 @@ func testWindowPostUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration,

 		// Drop the partition
 		err = secs.ForEach(func(sid uint64) error {
-			return miner.StorageMiner.(*impl.StorageMinerAPI).IStorageMgr.(*mock.SectorMgr).MarkCorrupted(abi.SectorID{
-				Miner:  abi.ActorID(mid),
-				Number: abi.SectorNumber(sid),
+			return miner.StorageMiner.(*impl.StorageMinerAPI).IStorageMgr.(*mock.SectorMgr).MarkCorrupted(storage.SectorRef{
+				ID: abi.SectorID{
+					Miner:  abi.ActorID(mid),
+					Number: abi.SectorNumber(sid),
+				},
 			}, true)
 		})
 		require.NoError(t, err)
 	}

-	var s abi.SectorID
+	var s storage.SectorRef

 	// Drop 1 sectors from deadline 3 partition 0
 	{
@@ -238,9 +161,11 @@ func testWindowPostUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration,
 		require.NoError(t, err)
 		fmt.Println("the sectors", all)

-		s = abi.SectorID{
-			Miner:  abi.ActorID(mid),
-			Number: abi.SectorNumber(sn),
+		s = storage.SectorRef{
+			ID: abi.SectorID{
+				Miner:  abi.ActorID(mid),
+				Number: abi.SectorNumber(sn),
+			},
 		}

 		err = miner.StorageMiner.(*impl.StorageMinerAPI).IStorageMgr.(*mock.SectorMgr).MarkFailed(s, true)
@@ -334,3 +259,744 @@ func testWindowPostUpgrade(t *testing.T, b APIBuilder, blocktime time.Duration,
 	sectors = p.MinerPower.RawBytePower.Uint64() / uint64(ssz)
 	require.Equal(t, nSectors+GenesisPreseals-2+1, int(sectors)) // -2 not recovered sectors + 1 just pledged
 }
+
+func TestTerminate(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	nSectors := uint64(2)
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithLatestActorsAt(-1)}, []StorageMiner{{Full: 0, Preseal: int(nSectors)}})
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	addrinfo, err := client.NetAddrsListen(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := miner.NetConnect(ctx, addrinfo); err != nil {
+		t.Fatal(err)
+	}
+	build.Clock.Sleep(time.Second)
+
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := sn[0].MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	maddr, err := miner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	ssz, err := miner.ActorSectorSize(ctx, maddr)
+	require.NoError(t, err)
+
+	p, err := client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.Equal(t, p.MinerPower, p.TotalPower)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)*nSectors))
+
+	fmt.Printf("Seal a sector\n")
+
+	pledgeSectors(t, ctx, miner, 1, 0, nil)
+
+	fmt.Printf("wait for power\n")
+
+	{
+		// Wait until proven.
+		di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+		require.NoError(t, err)
+
+		waitUntil := di.PeriodStart + di.WPoStProvingPeriod + 2
+		fmt.Printf("End for head.Height > %d\n", waitUntil)
+
+		for {
+			head, err := client.ChainHead(ctx)
+			require.NoError(t, err)
+
+			if head.Height() > waitUntil {
+				fmt.Printf("Now head.Height = %d\n", head.Height())
+				break
+			}
+		}
+	}
+
+	nSectors++
+
+	p, err = client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.Equal(t, p.MinerPower, p.TotalPower)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)*nSectors))
+
+	fmt.Println("Terminate a sector")
+
+	toTerminate := abi.SectorNumber(3)
+
+	err = miner.SectorTerminate(ctx, toTerminate)
+	require.NoError(t, err)
+
+	msgTriggerred := false
+loop:
+	for {
+		si, err := miner.SectorsStatus(ctx, toTerminate, false)
+		require.NoError(t, err)
+
+		fmt.Println("state: ", si.State, msgTriggerred)
+
+		switch sealing.SectorState(si.State) {
+		case sealing.Terminating:
+			if !msgTriggerred {
+				{
+					p, err := miner.SectorTerminatePending(ctx)
+					require.NoError(t, err)
+					require.Len(t, p, 1)
+					require.Equal(t, abi.SectorNumber(3), p[0].Number)
+				}
+
+				c, err := miner.SectorTerminateFlush(ctx)
+				require.NoError(t, err)
+				if c != nil {
+					msgTriggerred = true
+					fmt.Println("terminate message:", c)
+
+					{
+						p, err := miner.SectorTerminatePending(ctx)
+						require.NoError(t, err)
+						require.Len(t, p, 0)
+					}
+				}
+			}
+		case sealing.TerminateWait, sealing.TerminateFinality, sealing.Removed:
+			break loop
+		}
+
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	// check power decreased
+	p, err = client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.Equal(t, p.MinerPower, p.TotalPower)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)*(nSectors-1)))
+
+	// check in terminated set
+	{
+		parts, err := client.StateMinerPartitions(ctx, maddr, 1, types.EmptyTSK)
+		require.NoError(t, err)
+		require.Greater(t, len(parts), 0)
+
+		bflen := func(b bitfield.BitField) uint64 {
+			l, err := b.Count()
+			require.NoError(t, err)
+			return l
+		}
+
+		require.Equal(t, uint64(1), bflen(parts[0].AllSectors))
+		require.Equal(t, uint64(0), bflen(parts[0].LiveSectors))
+	}
+
+	di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > di.PeriodStart+di.WPoStProvingPeriod+2 {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+	require.NoError(t, err)
+	fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod+2)
+
+	p, err = client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	require.Equal(t, p.MinerPower, p.TotalPower)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)*(nSectors-1)))
+}
+
+func TestWindowPostDispute(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// First, we configure two miners. After sealing, we're going to turn off the first miner so
+	// it doesn't submit proofs.
+	///
+	// Then we're going to manually submit bad proofs.
+	n, sn := b(t, []FullNodeOpts{
+		FullNodeWithV4ActorsAt(-1),
+	}, []StorageMiner{
+		{Full: 0, Preseal: PresealGenesis},
+		{Full: 0},
+	})
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	chainMiner := sn[0]
+	evilMiner := sn[1]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := chainMiner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+
+		if err := evilMiner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	defaultFrom, err := client.WalletDefaultAddress(ctx)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	// Mine with the _second_ node (the good one).
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := chainMiner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	// Give the chain miner enough sectors to win every block.
+	pledgeSectors(t, ctx, chainMiner, 10, 0, nil)
+	// And the evil one 1 sector. No cookie for you.
+	pledgeSectors(t, ctx, evilMiner, 1, 0, nil)
+
+	// Let the evil miner's sectors gain power.
+	evilMinerAddr, err := evilMiner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	di, err := client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Printf("Running one proving period\n")
+	fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod*2)
+
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > di.PeriodStart+di.WPoStProvingPeriod*2 {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	p, err := client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	ssz, err := evilMiner.ActorSectorSize(ctx, evilMinerAddr)
+	require.NoError(t, err)
+
+	// make sure it has gained power.
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)))
+
+	evilSectors, err := evilMiner.SectorsList(ctx)
+	require.NoError(t, err)
+	evilSectorNo := evilSectors[0] // only one.
+	evilSectorLoc, err := client.StateSectorPartition(ctx, evilMinerAddr, evilSectorNo, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Println("evil miner stopping")
+
+	// Now stop the evil miner, and start manually submitting bad proofs.
+	require.NoError(t, evilMiner.Stop(ctx))
+
+	fmt.Println("evil miner stopped")
+
+	// Wait until we need to prove our sector.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index == evilSectorLoc.Deadline && di.CurrentEpoch-di.PeriodStart > 1 {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	err = submitBadProof(ctx, client, evilMinerAddr, di, evilSectorLoc.Deadline, evilSectorLoc.Partition)
+	require.NoError(t, err, "evil proof not accepted")
+
+	// Wait until after the proving period.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index != evilSectorLoc.Deadline {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	fmt.Println("accepted evil proof")
+
+	// Make sure the evil node didn't lose any power.
+	p, err = client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.Equal(t, p.MinerPower.RawBytePower, types.NewInt(uint64(ssz)))
+
+	// OBJECTION! The good miner files a DISPUTE!!!!
+	{
+		params := &minerActor.DisputeWindowedPoStParams{
+			Deadline:  evilSectorLoc.Deadline,
+			PoStIndex: 0,
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     evilMinerAddr,
+			Method: minerActor.Methods.DisputeWindowedPoSt,
+			Params: enc,
+			Value:  types.NewInt(0),
+			From:   defaultFrom,
+		}
+		sm, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.NoError(t, err)
+
+		fmt.Println("waiting dispute")
+		rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence, api.LookbackNoLimit, true)
+		require.NoError(t, err)
+		require.Zero(t, rec.Receipt.ExitCode, "dispute not accepted: %s", rec.Receipt.ExitCode.Error())
+	}
+
+	// Objection SUSTAINED!
+	// Make sure the evil node lost power.
+	p, err = client.StateMinerPower(ctx, evilMinerAddr, types.EmptyTSK)
+	require.NoError(t, err)
+	require.True(t, p.MinerPower.RawBytePower.IsZero())
+
+	// Now we begin the redemption arc.
+	require.True(t, p.MinerPower.RawBytePower.IsZero())
+
+	// First, recover the sector.
+
+	{
+		minerInfo, err := client.StateMinerInfo(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+
+		params := &minerActor.DeclareFaultsRecoveredParams{
+			Recoveries: []minerActor.RecoveryDeclaration{{
+				Deadline:  evilSectorLoc.Deadline,
+				Partition: evilSectorLoc.Partition,
+				Sectors:   bitfield.NewFromSet([]uint64{uint64(evilSectorNo)}),
+			}},
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     evilMinerAddr,
+			Method: minerActor.Methods.DeclareFaultsRecovered,
+			Params: enc,
+			Value:  types.FromFil(30), // repay debt.
+			From:   minerInfo.Owner,
+		}
+		sm, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.NoError(t, err)
+
+		rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence, api.LookbackNoLimit, true)
+		require.NoError(t, err)
+		require.Zero(t, rec.Receipt.ExitCode, "recovery not accepted: %s", rec.Receipt.ExitCode.Error())
+	}
+
+	// Then wait for the deadline.
+	for {
+		di, err = client.StateMinerProvingDeadline(ctx, evilMinerAddr, types.EmptyTSK)
+		require.NoError(t, err)
+		if di.Index == evilSectorLoc.Deadline && di.CurrentEpoch-di.PeriodStart > 1 {
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	// Now try to be evil again
+	err = submitBadProof(ctx, client, evilMinerAddr, di, evilSectorLoc.Deadline, evilSectorLoc.Partition)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "message execution failed: exit 16, reason: window post failed: invalid PoSt")
+
+	// It didn't work because we're recovering.
+}
+
+func submitBadProof(
+	ctx context.Context,
+	client api.FullNode, maddr address.Address,
+	di *dline.Info, dlIdx, partIdx uint64,
+) error {
+	head, err := client.ChainHead(ctx)
+	if err != nil {
+		return err
+	}
+
+	from, err := client.WalletDefaultAddress(ctx)
+	if err != nil {
+		return err
+	}
+
+	minerInfo, err := client.StateMinerInfo(ctx, maddr, head.Key())
+	if err != nil {
+		return err
+	}
+
+	commEpoch := di.Open
+	commRand, err := client.ChainGetRandomnessFromTickets(
+		ctx, head.Key(), crypto.DomainSeparationTag_PoStChainCommit,
+		commEpoch, nil,
+	)
+	if err != nil {
+		return err
+	}
+	params := &minerActor.SubmitWindowedPoStParams{
+		ChainCommitEpoch: commEpoch,
+		ChainCommitRand:  commRand,
+		Deadline:         dlIdx,
+		Partitions:       []minerActor.PoStPartition{{Index: partIdx}},
+		Proofs: []proof3.PoStProof{{
+			PoStProof:  minerInfo.WindowPoStProofType,
+			ProofBytes: []byte("I'm soooo very evil."),
+		}},
+	}
+
+	enc, aerr := actors.SerializeParams(params)
+	if aerr != nil {
+		return aerr
+	}
+
+	msg := &types.Message{
+		To:     maddr,
+		Method: minerActor.Methods.SubmitWindowedPoSt,
+		Params: enc,
+		Value:  types.NewInt(0),
+		From:   from,
+	}
+	sm, err := client.MpoolPushMessage(ctx, msg, nil)
+	if err != nil {
+		return err
+	}
+
+	rec, err := client.StateWaitMsg(ctx, sm.Cid(), build.MessageConfidence, api.LookbackNoLimit, true)
+	if err != nil {
+		return err
+	}
+	if rec.Receipt.ExitCode.IsError() {
+		return rec.Receipt.ExitCode
+	}
+	return nil
+}
+
+func TestWindowPostDisputeFails(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithV4ActorsAt(-1)}, OneMiner)
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := miner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	defaultFrom, err := client.WalletDefaultAddress(ctx)
+	require.NoError(t, err)
+
+	maddr, err := miner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	// Mine with the _second_ node (the good one).
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := miner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	pledgeSectors(t, ctx, miner, 10, 0, nil)
+
+	di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	fmt.Printf("Running one proving period\n")
+	fmt.Printf("End for head.Height > %d\n", di.PeriodStart+di.WPoStProvingPeriod*2)
+
+	for {
+		head, err := client.ChainHead(ctx)
+		require.NoError(t, err)
+
+		if head.Height() > di.PeriodStart+di.WPoStProvingPeriod*2 {
+			fmt.Printf("Now head.Height = %d\n", head.Height())
+			break
+		}
+		build.Clock.Sleep(blocktime)
+	}
+
+	ssz, err := miner.ActorSectorSize(ctx, maddr)
+	require.NoError(t, err)
+	expectedPower := types.NewInt(uint64(ssz) * (GenesisPreseals + 10))
+
+	p, err := client.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	// make sure it has gained power.
+	require.Equal(t, p.MinerPower.RawBytePower, expectedPower)
+
+	// Wait until a proof has been submitted.
+	var targetDeadline uint64
+waitForProof:
+	for {
+		deadlines, err := client.StateMinerDeadlines(ctx, maddr, types.EmptyTSK)
+		require.NoError(t, err)
+		for dlIdx, dl := range deadlines {
+			nonEmpty, err := dl.PostSubmissions.IsEmpty()
+			require.NoError(t, err)
+			if nonEmpty {
+				targetDeadline = uint64(dlIdx)
+				break waitForProof
+			}
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	for {
+		di, err := client.StateMinerProvingDeadline(ctx, maddr, types.EmptyTSK)
+		require.NoError(t, err)
+		// wait until the deadline finishes.
+		if di.Index == ((targetDeadline + 1) % di.WPoStPeriodDeadlines) {
+			break
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	// Try to object to the proof. This should fail.
+	{
+		params := &minerActor.DisputeWindowedPoStParams{
+			Deadline:  targetDeadline,
+			PoStIndex: 0,
+		}
+
+		enc, aerr := actors.SerializeParams(params)
+		require.NoError(t, aerr)
+
+		msg := &types.Message{
+			To:     maddr,
+			Method: minerActor.Methods.DisputeWindowedPoSt,
+			Params: enc,
+			Value:  types.NewInt(0),
+			From:   defaultFrom,
+		}
+		_, err := client.MpoolPushMessage(ctx, msg, nil)
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "failed to dispute valid post (RetCode=16)")
+	}
+}
+
+func TestWindowPostBaseFeeNoBurn(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	och := build.UpgradeClausHeight
+	build.UpgradeClausHeight = 10
+	n, sn := b(t, DefaultFullOpts(1), OneMiner)
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := miner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	maddr, err := miner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	mi, err := client.StateMinerInfo(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := miner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	pledgeSectors(t, ctx, miner, 10, 0, nil)
+	wact, err := client.StateGetActor(ctx, mi.Worker, types.EmptyTSK)
+	require.NoError(t, err)
+	en := wact.Nonce
+
+	// wait for a new message to be sent from worker address, it will be a PoSt
+
+waitForProof:
+	for {
+		wact, err := client.StateGetActor(ctx, mi.Worker, types.EmptyTSK)
+		require.NoError(t, err)
+		if wact.Nonce > en {
+			break waitForProof
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	slm, err := client.StateListMessages(ctx, &api.MessageMatch{To: maddr}, types.EmptyTSK, 0)
+	require.NoError(t, err)
+
+	pmr, err := client.StateReplay(ctx, types.EmptyTSK, slm[0])
+	require.NoError(t, err)
+
+	require.Equal(t, pmr.GasCost.BaseFeeBurn, big.Zero())
+
+	build.UpgradeClausHeight = och
+}
+
+func TestWindowPostBaseFeeBurn(t *testing.T, b APIBuilder, blocktime time.Duration) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	n, sn := b(t, []FullNodeOpts{FullNodeWithLatestActorsAt(-1)}, OneMiner)
+
+	client := n[0].FullNode.(*impl.FullNodeAPI)
+	miner := sn[0]
+
+	{
+		addrinfo, err := client.NetAddrsListen(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if err := miner.NetConnect(ctx, addrinfo); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	maddr, err := miner.ActorAddress(ctx)
+	require.NoError(t, err)
+
+	mi, err := client.StateMinerInfo(ctx, maddr, types.EmptyTSK)
+	require.NoError(t, err)
+
+	build.Clock.Sleep(time.Second)
+
+	done := make(chan struct{})
+	go func() {
+		defer close(done)
+		for ctx.Err() == nil {
+			build.Clock.Sleep(blocktime)
+			if err := miner.MineOne(ctx, MineNext); err != nil {
+				if ctx.Err() != nil {
+					// context was canceled, ignore the error.
+					return
+				}
+				t.Error(err)
+			}
+		}
+	}()
+	defer func() {
+		cancel()
+		<-done
+	}()
+
+	pledgeSectors(t, ctx, miner, 10, 0, nil)
+	wact, err := client.StateGetActor(ctx, mi.Worker, types.EmptyTSK)
+	require.NoError(t, err)
+	en := wact.Nonce
+
+	// wait for a new message to be sent from worker address, it will be a PoSt
+
+waitForProof:
+	for {
+		wact, err := client.StateGetActor(ctx, mi.Worker, types.EmptyTSK)
+		require.NoError(t, err)
+		if wact.Nonce > en {
+			break waitForProof
+		}
+
+		build.Clock.Sleep(blocktime)
+	}
+
+	slm, err := client.StateListMessages(ctx, &api.MessageMatch{To: maddr}, types.EmptyTSK, 0)
+	require.NoError(t, err)
+
+	pmr, err := client.StateReplay(ctx, types.EmptyTSK, slm[0])
+	require.NoError(t, err)
+
+	require.NotEqual(t, pmr.GasCost.BaseFeeBurn, big.Zero())
+}
@@ -3,10 +3,10 @@ package api
 import (
 	"encoding/json"
 	"fmt"
+	"time"

 	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-state-types/abi"
-	"github.com/filecoin-project/lotus/build"
 	"github.com/ipfs/go-cid"

 	"github.com/libp2p/go-libp2p-core/peer"
@@ -51,19 +51,6 @@ type MessageSendSpec struct {
 	MaxFee abi.TokenAmount
 }

-var DefaultMessageSendSpec = MessageSendSpec{
-	// MaxFee of 0.1FIL
-	MaxFee: abi.NewTokenAmount(int64(build.FilecoinPrecision) / 10),
-}
-
-func (ms *MessageSendSpec) Get() MessageSendSpec {
-	if ms == nil {
-		return DefaultMessageSendSpec
-	}
-
-	return *ms
-}
-
 type DataTransferChannel struct {
 	TransferID  datatransfer.TransferID
 	Status      datatransfer.Status
@@ -74,6 +61,7 @@ type DataTransferChannel struct {
 	Message     string
 	OtherPeer   peer.ID
 	Transferred uint64
+	Stages      *datatransfer.ChannelStages
 }

 // NewDataTransferChannel constructs an API DataTransferChannel type from full channel state snapshot and a host id
@@ -107,3 +95,24 @@ func NewDataTransferChannel(hostID peer.ID, channelState datatransfer.ChannelSta
 	}
 	return channel
 }
+
+type NetBlockList struct {
+	Peers     []peer.ID
+	IPAddrs   []string
+	IPSubnets []string
+}
+
+type ExtendedPeerInfo struct {
+	ID          peer.ID
+	Agent       string
+	Addrs       []string
+	Protocols   []string
+	ConnMgrMeta *ConnMgrInfo
+}
+
+type ConnMgrInfo struct {
+	FirstSeen time.Time
+	Value     int
+	Tags      map[string]int
+	Conns     map[string]time.Time
+}
@@ -0,0 +1,5 @@
+package apitypes
+
+import "github.com/filecoin-project/go-state-types/network"
+
+type NetworkVersion = network.Version
@@ -0,0 +1,3 @@
+package apitypes
+
+type OpenRPCDocument map[string]interface{}
@@ -0,0 +1,701 @@
+package v0api
+
+import (
+	"context"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-bitfield"
+	datatransfer "github.com/filecoin-project/go-data-transfer"
+	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
+	"github.com/filecoin-project/go-fil-markets/storagemarket"
+	"github.com/filecoin-project/go-multistore"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/crypto"
+	"github.com/filecoin-project/go-state-types/dline"
+	"github.com/ipfs/go-cid"
+	"github.com/libp2p/go-libp2p-core/peer"
+
+	"github.com/filecoin-project/lotus/api"
+	apitypes "github.com/filecoin-project/lotus/api/types"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
+	"github.com/filecoin-project/lotus/chain/types"
+	marketevents "github.com/filecoin-project/lotus/markets/loggers"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
+)
+
+//go:generate go run github.com/golang/mock/mockgen -destination=v0mocks/mock_full.go -package=v0mocks . FullNode
+
+//                       MODIFYING THE API INTERFACE
+//
+// NOTE: This is the V0 (Stable) API - when adding methods to this interface,
+// you'll need to make sure they are also present on the V1 (Unstable) API
+//
+// This API is implemented in `v1_wrapper.go` as a compatibility layer backed
+// by the V1 api
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
+// FullNode API is a low-level interface to the Filecoin network full node
+type FullNode interface {
+	Common
+
+	// MethodGroup: Chain
+	// The Chain method group contains methods for interacting with the
+	// blockchain, but that do not require any form of state computation.
+
+	// ChainNotify returns channel with chain head updates.
+	// First message is guaranteed to be of len == 1, and type == 'current'.
+	ChainNotify(context.Context) (<-chan []*api.HeadChange, error) //perm:read
+
+	// ChainHead returns the current head of the chain.
+	ChainHead(context.Context) (*types.TipSet, error) //perm:read
+
+	// ChainGetRandomnessFromTickets is used to sample the chain for randomness.
+	ChainGetRandomnessFromTickets(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error) //perm:read
+
+	// ChainGetRandomnessFromBeacon is used to sample the beacon for randomness.
+	ChainGetRandomnessFromBeacon(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error) //perm:read
+
+	// ChainGetBlock returns the block specified by the given CID.
+	ChainGetBlock(context.Context, cid.Cid) (*types.BlockHeader, error) //perm:read
+	// ChainGetTipSet returns the tipset specified by the given TipSetKey.
+	ChainGetTipSet(context.Context, types.TipSetKey) (*types.TipSet, error) //perm:read
+
+	// ChainGetBlockMessages returns messages stored in the specified block.
+	//
+	// Note: If there are multiple blocks in a tipset, it's likely that some
+	// messages will be duplicated. It's also possible for blocks in a tipset to have
+	// different messages from the same sender at the same nonce. When that happens,
+	// only the first message (in a block with lowest ticket) will be considered
+	// for execution
+	//
+	// NOTE: THIS METHOD SHOULD ONLY BE USED FOR GETTING MESSAGES IN A SPECIFIC BLOCK
+	//
+	// DO NOT USE THIS METHOD TO GET MESSAGES INCLUDED IN A TIPSET
+	// Use ChainGetParentMessages, which will perform correct message deduplication
+	ChainGetBlockMessages(ctx context.Context, blockCid cid.Cid) (*api.BlockMessages, error) //perm:read
+
+	// ChainGetParentReceipts returns receipts for messages in parent tipset of
+	// the specified block. The receipts in the list returned is one-to-one with the
+	// messages returned by a call to ChainGetParentMessages with the same blockCid.
+	ChainGetParentReceipts(ctx context.Context, blockCid cid.Cid) ([]*types.MessageReceipt, error) //perm:read
+
+	// ChainGetParentMessages returns messages stored in parent tipset of the
+	// specified block.
+	ChainGetParentMessages(ctx context.Context, blockCid cid.Cid) ([]api.Message, error) //perm:read
+
+	// ChainGetTipSetByHeight looks back for a tipset at the specified epoch.
+	// If there are no blocks at the specified epoch, a tipset at an earlier epoch
+	// will be returned.
+	ChainGetTipSetByHeight(context.Context, abi.ChainEpoch, types.TipSetKey) (*types.TipSet, error) //perm:read
+
+	// ChainReadObj reads ipld nodes referenced by the specified CID from chain
+	// blockstore and returns raw bytes.
+	ChainReadObj(context.Context, cid.Cid) ([]byte, error) //perm:read
+
+	// ChainDeleteObj deletes node referenced by the given CID
+	ChainDeleteObj(context.Context, cid.Cid) error //perm:admin
+
+	// ChainHasObj checks if a given CID exists in the chain blockstore.
+	ChainHasObj(context.Context, cid.Cid) (bool, error) //perm:read
+
+	// ChainStatObj returns statistics about the graph referenced by 'obj'.
+	// If 'base' is also specified, then the returned stat will be a diff
+	// between the two objects.
+	ChainStatObj(ctx context.Context, obj cid.Cid, base cid.Cid) (api.ObjStat, error) //perm:read
+
+	// ChainSetHead forcefully sets current chain head. Use with caution.
+	ChainSetHead(context.Context, types.TipSetKey) error //perm:admin
+
+	// ChainGetGenesis returns the genesis tipset.
+	ChainGetGenesis(context.Context) (*types.TipSet, error) //perm:read
+
+	// ChainTipSetWeight computes weight for the specified tipset.
+	ChainTipSetWeight(context.Context, types.TipSetKey) (types.BigInt, error) //perm:read
+	ChainGetNode(ctx context.Context, p string) (*api.IpldObject, error)      //perm:read
+
+	// ChainGetMessage reads a message referenced by the specified CID from the
+	// chain blockstore.
+	ChainGetMessage(context.Context, cid.Cid) (*types.Message, error) //perm:read
+
+	// ChainGetPath returns a set of revert/apply operations needed to get from
+	// one tipset to another, for example:
+	//```
+	//        to
+	//         ^
+	// from   tAA
+	//   ^     ^
+	// tBA    tAB
+	//  ^---*--^
+	//      ^
+	//     tRR
+	//```
+	// Would return `[revert(tBA), apply(tAB), apply(tAA)]`
+	ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*api.HeadChange, error) //perm:read
+
+	// ChainExport returns a stream of bytes with CAR dump of chain data.
+	// The exported chain data includes the header chain from the given tipset
+	// back to genesis, the entire genesis state, and the most recent 'nroots'
+	// state trees.
+	// If oldmsgskip is set, messages from before the requested roots are also not included.
+	ChainExport(ctx context.Context, nroots abi.ChainEpoch, oldmsgskip bool, tsk types.TipSetKey) (<-chan []byte, error) //perm:read
+
+	// MethodGroup: Beacon
+	// The Beacon method group contains methods for interacting with the random beacon (DRAND)
+
+	// BeaconGetEntry returns the beacon entry for the given filecoin epoch. If
+	// the entry has not yet been produced, the call will block until the entry
+	// becomes available
+	BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) //perm:read
+
+	// GasEstimateFeeCap estimates gas fee cap
+	GasEstimateFeeCap(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error) //perm:read
+
+	// GasEstimateGasLimit estimates gas used by the message and returns it.
+	// It fails if message fails to execute.
+	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error) //perm:read
+
+	// GasEstimateGasPremium estimates what gas price should be used for a
+	// message to have high likelihood of inclusion in `nblocksincl` epochs.
+
+	GasEstimateGasPremium(_ context.Context, nblocksincl uint64,
+		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) //perm:read
+
+	// GasEstimateMessageGas estimates gas values for unset message gas fields
+	GasEstimateMessageGas(context.Context, *types.Message, *api.MessageSendSpec, types.TipSetKey) (*types.Message, error) //perm:read
+
+	// MethodGroup: Sync
+	// The Sync method group contains methods for interacting with and
+	// observing the lotus sync service.
+
+	// SyncState returns the current status of the lotus sync system.
+	SyncState(context.Context) (*api.SyncState, error) //perm:read
+
+	// SyncSubmitBlock can be used to submit a newly created block to the.
+	// network through this node
+	SyncSubmitBlock(ctx context.Context, blk *types.BlockMsg) error //perm:write
+
+	// SyncIncomingBlocks returns a channel streaming incoming, potentially not
+	// yet synced block headers.
+	SyncIncomingBlocks(ctx context.Context) (<-chan *types.BlockHeader, error) //perm:read
+
+	// SyncCheckpoint marks a blocks as checkpointed, meaning that it won't ever fork away from it.
+	SyncCheckpoint(ctx context.Context, tsk types.TipSetKey) error //perm:admin
+
+	// SyncMarkBad marks a blocks as bad, meaning that it won't ever by synced.
+	// Use with extreme caution.
+	SyncMarkBad(ctx context.Context, bcid cid.Cid) error //perm:admin
+
+	// SyncUnmarkBad unmarks a blocks as bad, making it possible to be validated and synced again.
+	SyncUnmarkBad(ctx context.Context, bcid cid.Cid) error //perm:admin
+
+	// SyncUnmarkAllBad purges bad block cache, making it possible to sync to chains previously marked as bad
+	SyncUnmarkAllBad(ctx context.Context) error //perm:admin
+
+	// SyncCheckBad checks if a block was marked as bad, and if it was, returns
+	// the reason.
+	SyncCheckBad(ctx context.Context, bcid cid.Cid) (string, error) //perm:read
+
+	// SyncValidateTipset indicates whether the provided tipset is valid or not
+	SyncValidateTipset(ctx context.Context, tsk types.TipSetKey) (bool, error) //perm:read
+
+	// MethodGroup: Mpool
+	// The Mpool methods are for interacting with the message pool. The message pool
+	// manages all incoming and outgoing 'messages' going over the network.
+
+	// MpoolPending returns pending mempool messages.
+	MpoolPending(context.Context, types.TipSetKey) ([]*types.SignedMessage, error) //perm:read
+
+	// MpoolSelect returns a list of pending messages for inclusion in the next block
+	MpoolSelect(context.Context, types.TipSetKey, float64) ([]*types.SignedMessage, error) //perm:read
+
+	// MpoolPush pushes a signed message to mempool.
+	MpoolPush(context.Context, *types.SignedMessage) (cid.Cid, error) //perm:write
+
+	// MpoolPushUntrusted pushes a signed message to mempool from untrusted sources.
+	MpoolPushUntrusted(context.Context, *types.SignedMessage) (cid.Cid, error) //perm:write
+
+	// MpoolPushMessage atomically assigns a nonce, signs, and pushes a message
+	// to mempool.
+	// maxFee is only used when GasFeeCap/GasPremium fields aren't specified
+	//
+	// When maxFee is set to 0, MpoolPushMessage will guess appropriate fee
+	// based on current chain conditions
+	MpoolPushMessage(ctx context.Context, msg *types.Message, spec *api.MessageSendSpec) (*types.SignedMessage, error) //perm:sign
+
+	// MpoolBatchPush batch pushes a signed message to mempool.
+	MpoolBatchPush(context.Context, []*types.SignedMessage) ([]cid.Cid, error) //perm:write
+
+	// MpoolBatchPushUntrusted batch pushes a signed message to mempool from untrusted sources.
+	MpoolBatchPushUntrusted(context.Context, []*types.SignedMessage) ([]cid.Cid, error) //perm:write
+
+	// MpoolBatchPushMessage batch pushes a unsigned message to mempool.
+	MpoolBatchPushMessage(context.Context, []*types.Message, *api.MessageSendSpec) ([]*types.SignedMessage, error) //perm:sign
+
+	// MpoolGetNonce gets next nonce for the specified sender.
+	// Note that this method may not be atomic. Use MpoolPushMessage instead.
+	MpoolGetNonce(context.Context, address.Address) (uint64, error) //perm:read
+	MpoolSub(context.Context) (<-chan api.MpoolUpdate, error)       //perm:read
+
+	// MpoolClear clears pending messages from the mpool
+	MpoolClear(context.Context, bool) error //perm:write
+
+	// MpoolGetConfig returns (a copy of) the current mpool config
+	MpoolGetConfig(context.Context) (*types.MpoolConfig, error) //perm:read
+	// MpoolSetConfig sets the mpool config to (a copy of) the supplied config
+	MpoolSetConfig(context.Context, *types.MpoolConfig) error //perm:admin
+
+	// MethodGroup: Miner
+
+	MinerGetBaseInfo(context.Context, address.Address, abi.ChainEpoch, types.TipSetKey) (*api.MiningBaseInfo, error) //perm:read
+	MinerCreateBlock(context.Context, *api.BlockTemplate) (*types.BlockMsg, error)                                   //perm:write
+
+	// // UX ?
+
+	// MethodGroup: Wallet
+
+	// WalletNew creates a new address in the wallet with the given sigType.
+	// Available key types: bls, secp256k1, secp256k1-ledger
+	// Support for numerical types: 1 - secp256k1, 2 - BLS is deprecated
+	WalletNew(context.Context, types.KeyType) (address.Address, error) //perm:write
+	// WalletHas indicates whether the given address is in the wallet.
+	WalletHas(context.Context, address.Address) (bool, error) //perm:write
+	// WalletList lists all the addresses in the wallet.
+	WalletList(context.Context) ([]address.Address, error) //perm:write
+	// WalletBalance returns the balance of the given address at the current head of the chain.
+	WalletBalance(context.Context, address.Address) (types.BigInt, error) //perm:read
+	// WalletSign signs the given bytes using the given address.
+	WalletSign(context.Context, address.Address, []byte) (*crypto.Signature, error) //perm:sign
+	// WalletSignMessage signs the given message using the given address.
+	WalletSignMessage(context.Context, address.Address, *types.Message) (*types.SignedMessage, error) //perm:sign
+	// WalletVerify takes an address, a signature, and some bytes, and indicates whether the signature is valid.
+	// The address does not have to be in the wallet.
+	WalletVerify(context.Context, address.Address, []byte, *crypto.Signature) (bool, error) //perm:read
+	// WalletDefaultAddress returns the address marked as default in the wallet.
+	WalletDefaultAddress(context.Context) (address.Address, error) //perm:write
+	// WalletSetDefault marks the given address as as the default one.
+	WalletSetDefault(context.Context, address.Address) error //perm:write
+	// WalletExport returns the private key of an address in the wallet.
+	WalletExport(context.Context, address.Address) (*types.KeyInfo, error) //perm:admin
+	// WalletImport receives a KeyInfo, which includes a private key, and imports it into the wallet.
+	WalletImport(context.Context, *types.KeyInfo) (address.Address, error) //perm:admin
+	// WalletDelete deletes an address from the wallet.
+	WalletDelete(context.Context, address.Address) error //perm:admin
+	// WalletValidateAddress validates whether a given string can be decoded as a well-formed address
+	WalletValidateAddress(context.Context, string) (address.Address, error) //perm:read
+
+	// Other
+
+	// MethodGroup: Client
+	// The Client methods all have to do with interacting with the storage and
+	// retrieval markets as a client
+
+	// ClientImport imports file under the specified path into filestore.
+	ClientImport(ctx context.Context, ref api.FileRef) (*api.ImportRes, error) //perm:admin
+	// ClientRemoveImport removes file import
+	ClientRemoveImport(ctx context.Context, importID multistore.StoreID) error //perm:admin
+	// ClientStartDeal proposes a deal with a miner.
+	ClientStartDeal(ctx context.Context, params *api.StartDealParams) (*cid.Cid, error) //perm:admin
+	// ClientGetDealInfo returns the latest information about a given deal.
+	ClientGetDealInfo(context.Context, cid.Cid) (*api.DealInfo, error) //perm:read
+	// ClientListDeals returns information about the deals made by the local client.
+	ClientListDeals(ctx context.Context) ([]api.DealInfo, error) //perm:write
+	// ClientGetDealUpdates returns the status of updated deals
+	ClientGetDealUpdates(ctx context.Context) (<-chan api.DealInfo, error) //perm:write
+	// ClientGetDealStatus returns status given a code
+	ClientGetDealStatus(ctx context.Context, statusCode uint64) (string, error) //perm:read
+	// ClientHasLocal indicates whether a certain CID is locally stored.
+	ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error) //perm:write
+	// ClientFindData identifies peers that have a certain file, and returns QueryOffers (one per peer).
+	ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]api.QueryOffer, error) //perm:read
+	// ClientMinerQueryOffer returns a QueryOffer for the specific miner and file.
+	ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (api.QueryOffer, error) //perm:read
+	// ClientRetrieve initiates the retrieval of a file, as specified in the order.
+	ClientRetrieve(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) error //perm:admin
+	// ClientRetrieveWithEvents initiates the retrieval of a file, as specified in the order, and provides a channel
+	// of status updates.
+	ClientRetrieveWithEvents(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) (<-chan marketevents.RetrievalEvent, error) //perm:admin
+	// ClientQueryAsk returns a signed StorageAsk from the specified miner.
+	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) //perm:read
+	// ClientCalcCommP calculates the CommP and data size of the specified CID
+	ClientDealPieceCID(ctx context.Context, root cid.Cid) (api.DataCIDSize, error) //perm:read
+	// ClientCalcCommP calculates the CommP for a specified file
+	ClientCalcCommP(ctx context.Context, inpath string) (*api.CommPRet, error) //perm:write
+	// ClientGenCar generates a CAR file for the specified file.
+	ClientGenCar(ctx context.Context, ref api.FileRef, outpath string) error //perm:write
+	// ClientDealSize calculates real deal data size
+	ClientDealSize(ctx context.Context, root cid.Cid) (api.DataSize, error) //perm:read
+	// ClientListTransfers returns the status of all ongoing transfers of data
+	ClientListDataTransfers(ctx context.Context) ([]api.DataTransferChannel, error)        //perm:write
+	ClientDataTransferUpdates(ctx context.Context) (<-chan api.DataTransferChannel, error) //perm:write
+	// ClientRestartDataTransfer attempts to restart a data transfer with the given transfer ID and other peer
+	ClientRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
+	// ClientCancelDataTransfer cancels a data transfer with the given transfer ID and other peer
+	ClientCancelDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write
+	// ClientRetrieveTryRestartInsufficientFunds attempts to restart stalled retrievals on a given payment channel
+	// which are stuck due to insufficient funds
+	ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error //perm:write
+
+	// ClientCancelRetrievalDeal cancels an ongoing retrieval deal based on DealID
+	ClientCancelRetrievalDeal(ctx context.Context, dealid retrievalmarket.DealID) error //perm:write
+
+	// ClientUnimport removes references to the specified file from filestore
+	//ClientUnimport(path string)
+
+	// ClientListImports lists imported files and their root CIDs
+	ClientListImports(ctx context.Context) ([]api.Import, error) //perm:write
+
+	//ClientListAsks() []Ask
+
+	// MethodGroup: State
+	// The State methods are used to query, inspect, and interact with chain state.
+	// Most methods take a TipSetKey as a parameter. The state looked up is the parent state of the tipset.
+	// A nil TipSetKey can be provided as a param, this will cause the heaviest tipset in the chain to be used.
+
+	// StateCall runs the given message and returns its result without any persisted changes.
+	//
+	// StateCall applies the message to the tipset's parent state. The
+	// message is not applied on-top-of the messages in the passed-in
+	// tipset.
+	StateCall(context.Context, *types.Message, types.TipSetKey) (*api.InvocResult, error) //perm:read
+	// StateReplay replays a given message, assuming it was included in a block in the specified tipset.
+	//
+	// If a tipset key is provided, and a replacing message is found on chain,
+	// the method will return an error saying that the message wasn't found
+	//
+	// If no tipset key is provided, the appropriate tipset is looked up, and if
+	// the message was gas-repriced, the on-chain message will be replayed - in
+	// that case the returned InvocResult.MsgCid will not match the Cid param
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that InvocResult.MsgCid is equal to the provided Cid.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateReplay(context.Context, types.TipSetKey, cid.Cid) (*api.InvocResult, error) //perm:read
+	// StateGetActor returns the indicated actor's nonce and balance.
+	StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error) //perm:read
+	// StateReadState returns the indicated actor's state.
+	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*api.ActorState, error) //perm:read
+	// StateListMessages looks back and returns all messages with a matching to or from address, stopping at the given height.
+	StateListMessages(ctx context.Context, match *api.MessageMatch, tsk types.TipSetKey, toht abi.ChainEpoch) ([]cid.Cid, error) //perm:read
+	// StateDecodeParams attempts to decode the provided params, based on the recipient actor address and method number.
+	StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error) //perm:read
+
+	// StateNetworkName returns the name of the network the node is synced to
+	StateNetworkName(context.Context) (dtypes.NetworkName, error) //perm:read
+	// StateMinerSectors returns info about the given miner's sectors. If the filter bitfield is nil, all sectors are included.
+	StateMinerSectors(context.Context, address.Address, *bitfield.BitField, types.TipSetKey) ([]*miner.SectorOnChainInfo, error) //perm:read
+	// StateMinerActiveSectors returns info about sectors that a given miner is actively proving.
+	StateMinerActiveSectors(context.Context, address.Address, types.TipSetKey) ([]*miner.SectorOnChainInfo, error) //perm:read
+	// StateMinerProvingDeadline calculates the deadline at some epoch for a proving period
+	// and returns the deadline-related calculations.
+	StateMinerProvingDeadline(context.Context, address.Address, types.TipSetKey) (*dline.Info, error) //perm:read
+	// StateMinerPower returns the power of the indicated miner
+	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*api.MinerPower, error) //perm:read
+	// StateMinerInfo returns info about the indicated miner
+	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (miner.MinerInfo, error) //perm:read
+	// StateMinerDeadlines returns all the proving deadlines for the given miner
+	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]api.Deadline, error) //perm:read
+	// StateMinerPartitions returns all partitions in the specified deadline
+	StateMinerPartitions(ctx context.Context, m address.Address, dlIdx uint64, tsk types.TipSetKey) ([]api.Partition, error) //perm:read
+	// StateMinerFaults returns a bitfield indicating the faulty sectors of the given miner
+	StateMinerFaults(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error) //perm:read
+	// StateAllMinerFaults returns all non-expired Faults that occur within lookback epochs of the given tipset
+	StateAllMinerFaults(ctx context.Context, lookback abi.ChainEpoch, ts types.TipSetKey) ([]*api.Fault, error) //perm:read
+	// StateMinerRecoveries returns a bitfield indicating the recovering sectors of the given miner
+	StateMinerRecoveries(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error) //perm:read
+	// StateMinerInitialPledgeCollateral returns the precommit deposit for the specified miner's sector
+	StateMinerPreCommitDepositForPower(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error) //perm:read
+	// StateMinerInitialPledgeCollateral returns the initial pledge collateral for the specified miner's sector
+	StateMinerInitialPledgeCollateral(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error) //perm:read
+	// StateMinerAvailableBalance returns the portion of a miner's balance that can be withdrawn or spent
+	StateMinerAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error) //perm:read
+	// StateMinerSectorAllocated checks if a sector is allocated
+	StateMinerSectorAllocated(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (bool, error) //perm:read
+	// StateSectorPreCommitInfo returns the PreCommit info for the specified miner's sector
+	StateSectorPreCommitInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error) //perm:read
+	// StateSectorGetInfo returns the on-chain info for the specified miner's sector. Returns null in case the sector info isn't found
+	// NOTE: returned info.Expiration may not be accurate in some cases, use StateSectorExpiration to get accurate
+	// expiration epoch
+	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error) //perm:read
+	// StateSectorExpiration returns epoch at which given sector will expire
+	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorExpiration, error) //perm:read
+	// StateSectorPartition finds deadline/partition with the specified sector
+	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*miner.SectorLocation, error) //perm:read
+	// StateSearchMsg searches for a message in the chain, and returns its receipt and the tipset where it was executed
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that MsgLookup.Message is equal to the provided 'cid'.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateSearchMsg(context.Context, cid.Cid) (*api.MsgLookup, error) //perm:read
+	// StateSearchMsgLimited looks back up to limit epochs in the chain for a message, and returns its receipt and the tipset where it was executed
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that MsgLookup.Message is equal to the provided 'cid'.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateSearchMsgLimited(ctx context.Context, msg cid.Cid, limit abi.ChainEpoch) (*api.MsgLookup, error) //perm:read
+	// StateWaitMsg looks back in the chain for a message. If not found, it blocks until the
+	// message arrives on chain, and gets to the indicated confidence depth.
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that MsgLookup.Message is equal to the provided 'cid'.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64) (*api.MsgLookup, error) //perm:read
+	// StateWaitMsgLimited looks back up to limit epochs in the chain for a message.
+	// If not found, it blocks until the message arrives on chain, and gets to the
+	// indicated confidence depth.
+	//
+	// NOTE: If a replacing message is found on chain, this method will return
+	// a MsgLookup for the replacing message - the MsgLookup.Message will be a different
+	// CID than the one provided in the 'cid' param, MsgLookup.Receipt will contain the
+	// result of the execution of the replacing message.
+	//
+	// If the caller wants to ensure that exactly the requested message was executed,
+	// they MUST check that MsgLookup.Message is equal to the provided 'cid'.
+	// Without this check both the requested and original message may appear as
+	// successfully executed on-chain, which may look like a double-spend.
+	//
+	// A replacing message is a message with a different CID, any of Gas values, and
+	// different signature, but with all other parameters matching (source/destination,
+	// nonce, params, etc.)
+	StateWaitMsgLimited(ctx context.Context, cid cid.Cid, confidence uint64, limit abi.ChainEpoch) (*api.MsgLookup, error) //perm:read
+	// StateListMiners returns the addresses of every miner that has claimed power in the Power Actor
+	StateListMiners(context.Context, types.TipSetKey) ([]address.Address, error) //perm:read
+	// StateListActors returns the addresses of every actor in the state
+	StateListActors(context.Context, types.TipSetKey) ([]address.Address, error) //perm:read
+	// StateMarketBalance looks up the Escrow and Locked balances of the given address in the Storage Market
+	StateMarketBalance(context.Context, address.Address, types.TipSetKey) (api.MarketBalance, error) //perm:read
+	// StateMarketParticipants returns the Escrow and Locked balances of every participant in the Storage Market
+	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]api.MarketBalance, error) //perm:read
+	// StateMarketDeals returns information about every deal in the Storage Market
+	StateMarketDeals(context.Context, types.TipSetKey) (map[string]api.MarketDeal, error) //perm:read
+	// StateMarketStorageDeal returns information about the indicated deal
+	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*api.MarketDeal, error) //perm:read
+	// StateLookupID retrieves the ID address of the given address
+	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
+	// StateAccountKey returns the public key address of the given ID address
+	StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
+	// StateChangedActors returns all the actors whose states change between the two given state CIDs
+	// TODO: Should this take tipset keys instead?
+	StateChangedActors(context.Context, cid.Cid, cid.Cid) (map[string]types.Actor, error) //perm:read
+	// StateGetReceipt returns the message receipt for the given message or for a
+	// matching gas-repriced replacing message
+	//
+	// NOTE: If the requested message was replaced, this method will return the receipt
+	// for the replacing message - if the caller needs the receipt for exactly the
+	// requested message, use StateSearchMsg().Receipt, and check that MsgLookup.Message
+	// is matching the requested CID
+	//
+	// DEPRECATED: Use StateSearchMsg, this method won't be supported in v1 API
+	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error) //perm:read
+	// StateMinerSectorCount returns the number of sectors in a miner's sector set and proving set
+	StateMinerSectorCount(context.Context, address.Address, types.TipSetKey) (api.MinerSectors, error) //perm:read
+	// StateCompute is a flexible command that applies the given messages on the given tipset.
+	// The messages are run as though the VM were at the provided height.
+	//
+	// When called, StateCompute will:
+	// - Load the provided tipset, or use the current chain head if not provided
+	// - Compute the tipset state of the provided tipset on top of the parent state
+	//   - (note that this step runs before vmheight is applied to the execution)
+	//   - Execute state upgrade if any were scheduled at the epoch, or in null
+	//     blocks preceding the tipset
+	//   - Call the cron actor on null blocks preceding the tipset
+	//   - For each block in the tipset
+	//     - Apply messages in blocks in the specified
+	//     - Award block reward by calling the reward actor
+	//   - Call the cron actor for the current epoch
+	// - If the specified vmheight is higher than the current epoch, apply any
+	//   needed state upgrades to the state
+	// - Apply the specified messages to the state
+	//
+	// The vmheight parameter sets VM execution epoch, and can be used to simulate
+	// message execution in different network versions. If the specified vmheight
+	// epoch is higher than the epoch of the specified tipset, any state upgrades
+	// until the vmheight will be executed on the state before applying messages
+	// specified by the user.
+	//
+	// Note that the initial tipset state computation is not affected by the
+	// vmheight parameter - only the messages in the `apply` set are
+	//
+	// If the caller wants to simply compute the state, vmheight should be set to
+	// the epoch of the specified tipset.
+	//
+	// Messages in the `apply` parameter must have the correct nonces, and gas
+	// values set.
+	StateCompute(context.Context, abi.ChainEpoch, []*types.Message, types.TipSetKey) (*api.ComputeStateOutput, error) //perm:read
+	// StateVerifierStatus returns the data cap for the given address.
+	// Returns nil if there is no entry in the data cap table for the
+	// address.
+	StateVerifierStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error) //perm:read
+	// StateVerifiedClientStatus returns the data cap for the given address.
+	// Returns nil if there is no entry in the data cap table for the
+	// address.
+	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error) //perm:read
+	// StateVerifiedClientStatus returns the address of the Verified Registry's root key
+	StateVerifiedRegistryRootKey(ctx context.Context, tsk types.TipSetKey) (address.Address, error) //perm:read
+	// StateDealProviderCollateralBounds returns the min and max collateral a storage provider
+	// can issue. It takes the deal size and verified status as parameters.
+	StateDealProviderCollateralBounds(context.Context, abi.PaddedPieceSize, bool, types.TipSetKey) (api.DealCollateralBounds, error) //perm:read
+
+	// StateCirculatingSupply returns the exact circulating supply of Filecoin at the given tipset.
+	// This is not used anywhere in the protocol itself, and is only for external consumption.
+	StateCirculatingSupply(context.Context, types.TipSetKey) (abi.TokenAmount, error) //perm:read
+	// StateVMCirculatingSupplyInternal returns an approximation of the circulating supply of Filecoin at the given tipset.
+	// This is the value reported by the runtime interface to actors code.
+	StateVMCirculatingSupplyInternal(context.Context, types.TipSetKey) (api.CirculatingSupply, error) //perm:read
+	// StateNetworkVersion returns the network version at the given tipset
+	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error) //perm:read
+
+	// MethodGroup: Msig
+	// The Msig methods are used to interact with multisig wallets on the
+	// filecoin network
+
+	// MsigGetAvailableBalance returns the portion of a multisig's balance that can be withdrawn or spent
+	MsigGetAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error) //perm:read
+	// MsigGetVestingSchedule returns the vesting details of a given multisig.
+	MsigGetVestingSchedule(context.Context, address.Address, types.TipSetKey) (api.MsigVesting, error) //perm:read
+	// MsigGetVested returns the amount of FIL that vested in a multisig in a certain period.
+	// It takes the following params: <multisig address>, <start epoch>, <end epoch>
+	MsigGetVested(context.Context, address.Address, types.TipSetKey, types.TipSetKey) (types.BigInt, error) //perm:read
+
+	//MsigGetPending returns pending transactions for the given multisig
+	//wallet. Once pending transactions are fully approved, they will no longer
+	//appear here.
+	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*api.MsigTransaction, error) //perm:read
+
+	// MsigCreate creates a multisig wallet
+	// It takes the following params: <required number of senders>, <approving addresses>, <unlock duration>
+	//<initial balance>, <sender address of the create msg>, <gas price>
+	MsigCreate(context.Context, uint64, []address.Address, abi.ChainEpoch, types.BigInt, address.Address, types.BigInt) (cid.Cid, error) //perm:sign
+	// MsigPropose proposes a multisig message
+	// It takes the following params: <multisig address>, <recipient address>, <value to transfer>,
+	// <sender address of the propose msg>, <method to call in the proposed message>, <params to include in the proposed message>
+	MsigPropose(context.Context, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign
+
+	// MsigApprove approves a previously-proposed multisig message by transaction ID
+	// It takes the following params: <multisig address>, <proposed transaction ID> <signer address>
+	MsigApprove(context.Context, address.Address, uint64, address.Address) (cid.Cid, error) //perm:sign
+
+	// MsigApproveTxnHash approves a previously-proposed multisig message, specified
+	// using both transaction ID and a hash of the parameters used in the
+	// proposal. This method of approval can be used to ensure you only approve
+	// exactly the transaction you think you are.
+	// It takes the following params: <multisig address>, <proposed message ID>, <proposer address>, <recipient address>, <value to transfer>,
+	// <sender address of the approve msg>, <method to call in the proposed message>, <params to include in the proposed message>
+	MsigApproveTxnHash(context.Context, address.Address, uint64, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign
+
+	// MsigCancel cancels a previously-proposed multisig message
+	// It takes the following params: <multisig address>, <proposed transaction ID>, <recipient address>, <value to transfer>,
+	// <sender address of the cancel msg>, <method to call in the proposed message>, <params to include in the proposed message>
+	MsigCancel(context.Context, address.Address, uint64, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error) //perm:sign
+	// MsigAddPropose proposes adding a signer in the multisig
+	// It takes the following params: <multisig address>, <sender address of the propose msg>,
+	// <new signer>, <whether the number of required signers should be increased>
+	MsigAddPropose(context.Context, address.Address, address.Address, address.Address, bool) (cid.Cid, error) //perm:sign
+	// MsigAddApprove approves a previously proposed AddSigner message
+	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
+	// <proposer address>, <new signer>, <whether the number of required signers should be increased>
+	MsigAddApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, bool) (cid.Cid, error) //perm:sign
+	// MsigAddCancel cancels a previously proposed AddSigner message
+	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
+	// <new signer>, <whether the number of required signers should be increased>
+	MsigAddCancel(context.Context, address.Address, address.Address, uint64, address.Address, bool) (cid.Cid, error) //perm:sign
+	// MsigSwapPropose proposes swapping 2 signers in the multisig
+	// It takes the following params: <multisig address>, <sender address of the propose msg>,
+	// <old signer>, <new signer>
+	MsigSwapPropose(context.Context, address.Address, address.Address, address.Address, address.Address) (cid.Cid, error) //perm:sign
+	// MsigSwapApprove approves a previously proposed SwapSigner
+	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
+	// <proposer address>, <old signer>, <new signer>
+	MsigSwapApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, address.Address) (cid.Cid, error) //perm:sign
+	// MsigSwapCancel cancels a previously proposed SwapSigner message
+	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
+	// <old signer>, <new signer>
+	MsigSwapCancel(context.Context, address.Address, address.Address, uint64, address.Address, address.Address) (cid.Cid, error) //perm:sign
+
+	// MsigRemoveSigner proposes the removal of a signer from the multisig.
+	// It accepts the multisig to make the change on, the proposer address to
+	// send the message from, the address to be removed, and a boolean
+	// indicating whether or not the signing threshold should be lowered by one
+	// along with the address removal.
+	MsigRemoveSigner(ctx context.Context, msig address.Address, proposer address.Address, toRemove address.Address, decrease bool) (cid.Cid, error) //perm:sign
+
+	// MarketAddBalance adds funds to the market actor
+	MarketAddBalance(ctx context.Context, wallet, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign
+	// MarketGetReserved gets the amount of funds that are currently reserved for the address
+	MarketGetReserved(ctx context.Context, addr address.Address) (types.BigInt, error) //perm:sign
+	// MarketReserveFunds reserves funds for a deal
+	MarketReserveFunds(ctx context.Context, wallet address.Address, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign
+	// MarketReleaseFunds releases funds reserved by MarketReserveFunds
+	MarketReleaseFunds(ctx context.Context, addr address.Address, amt types.BigInt) error //perm:sign
+	// MarketWithdraw withdraws unlocked funds from the market actor
+	MarketWithdraw(ctx context.Context, wallet, addr address.Address, amt types.BigInt) (cid.Cid, error) //perm:sign
+
+	// MethodGroup: Paych
+	// The Paych methods are for interacting with and managing payment channels
+
+	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*api.ChannelInfo, error)                  //perm:sign
+	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)                                                 //perm:sign
+	PaychAvailableFunds(ctx context.Context, ch address.Address) (*api.ChannelAvailableFunds, error)                     //perm:sign
+	PaychAvailableFundsByFromTo(ctx context.Context, from, to address.Address) (*api.ChannelAvailableFunds, error)       //perm:sign
+	PaychList(context.Context) ([]address.Address, error)                                                                //perm:read
+	PaychStatus(context.Context, address.Address) (*api.PaychStatus, error)                                              //perm:read
+	PaychSettle(context.Context, address.Address) (cid.Cid, error)                                                       //perm:sign
+	PaychCollect(context.Context, address.Address) (cid.Cid, error)                                                      //perm:sign
+	PaychAllocateLane(ctx context.Context, ch address.Address) (uint64, error)                                           //perm:sign
+	PaychNewPayment(ctx context.Context, from, to address.Address, vouchers []api.VoucherSpec) (*api.PaymentInfo, error) //perm:sign
+	PaychVoucherCheckValid(context.Context, address.Address, *paych.SignedVoucher) error                                 //perm:read
+	PaychVoucherCheckSpendable(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (bool, error)     //perm:read
+	PaychVoucherCreate(context.Context, address.Address, types.BigInt, uint64) (*api.VoucherCreateResult, error)         //perm:sign
+	PaychVoucherAdd(context.Context, address.Address, *paych.SignedVoucher, []byte, types.BigInt) (types.BigInt, error)  //perm:write
+	PaychVoucherList(context.Context, address.Address) ([]*paych.SignedVoucher, error)                                   //perm:write
+	PaychVoucherSubmit(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (cid.Cid, error)          //perm:sign
+
+	// CreateBackup creates node backup onder the specified file name. The
+	// method requires that the lotus daemon is running with the
+	// LOTUS_BACKUP_BASE_PATH environment variable set to some path, and that
+	// the path specified when calling CreateBackup is within the base path
+	CreateBackup(ctx context.Context, fpath string) error //perm:admin
+}
@@ -0,0 +1,68 @@
+package v0api
+
+import (
+	"context"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/dline"
+	"github.com/filecoin-project/go-state-types/network"
+
+	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/types"
+)
+
+//                       MODIFYING THE API INTERFACE
+//
+// NOTE: This is the V0 (Stable) API - when adding methods to this interface,
+// you'll need to make sure they are also present on the V1 (Unstable) API
+//
+// This API is implemented in `v1_wrapper.go` as a compatibility layer backed
+// by the V1 api
+//
+// When adding / changing methods in this file:
+// * Do the change here
+// * Adjust implementation in `node/impl/`
+// * Run `make gen` - this will:
+//  * Generate proxy structs
+//  * Generate mocks
+//  * Generate markdown docs
+//  * Generate openrpc blobs
+
+type Gateway interface {
+	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainHead(ctx context.Context) (*types.TipSet, error)
+	ChainGetBlockMessages(context.Context, cid.Cid) (*api.BlockMessages, error)
+	ChainGetMessage(ctx context.Context, mc cid.Cid) (*types.Message, error)
+	ChainGetTipSet(ctx context.Context, tsk types.TipSetKey) (*types.TipSet, error)
+	ChainGetTipSetByHeight(ctx context.Context, h abi.ChainEpoch, tsk types.TipSetKey) (*types.TipSet, error)
+	ChainNotify(context.Context) (<-chan []*api.HeadChange, error)
+	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
+	GasEstimateMessageGas(ctx context.Context, msg *types.Message, spec *api.MessageSendSpec, tsk types.TipSetKey) (*types.Message, error)
+	MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
+	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
+	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
+	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*api.MsigTransaction, error)
+	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
+	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (api.DealCollateralBounds, error)
+	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
+	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error)
+	StateListMiners(ctx context.Context, tsk types.TipSetKey) ([]address.Address, error)
+	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
+	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (api.MarketBalance, error)
+	StateMarketStorageDeal(ctx context.Context, dealId abi.DealID, tsk types.TipSetKey) (*api.MarketDeal, error)
+	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (miner.MinerInfo, error)
+	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
+	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*api.MinerPower, error)
+	StateNetworkVersion(context.Context, types.TipSetKey) (network.Version, error)
+	StateSearchMsg(ctx context.Context, msg cid.Cid) (*api.MsgLookup, error)
+	StateSectorGetInfo(ctx context.Context, maddr address.Address, n abi.SectorNumber, tsk types.TipSetKey) (*miner.SectorOnChainInfo, error)
+	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error)
+	StateWaitMsg(ctx context.Context, msg cid.Cid, confidence uint64) (*api.MsgLookup, error)
+	WalletBalance(context.Context, address.Address) (types.BigInt, error)
+}
+
+var _ Gateway = *new(FullNode)
@@ -0,0 +1,25 @@
+package v0api
+
+import (
+	"github.com/filecoin-project/lotus/api"
+)
+
+type Common = api.Common
+type CommonStruct = api.CommonStruct
+type CommonStub = api.CommonStub
+
+type StorageMiner = api.StorageMiner
+type StorageMinerStruct = api.StorageMinerStruct
+
+type Worker = api.Worker
+type WorkerStruct = api.WorkerStruct
+
+type Wallet = api.Wallet
+
+func PermissionedStorMinerAPI(a StorageMiner) StorageMiner {
+	return api.PermissionedStorMinerAPI(a)
+}
+
+func PermissionedWorkerAPI(a Worker) Worker {
+	return api.PermissionedWorkerAPI(a)
+}
@@ -0,0 +1,13 @@
+package v0api
+
+import (
+	"github.com/filecoin-project/go-jsonrpc/auth"
+	"github.com/filecoin-project/lotus/api"
+)
+
+func PermissionedFullAPI(a FullNode) FullNode {
+	var out FullNodeStruct
+	auth.PermissionedProxy(api.AllPermissions, api.DefaultPerms, a, &out.Internal)
+	auth.PermissionedProxy(api.AllPermissions, api.DefaultPerms, a, &out.CommonStruct.Internal)
+	return &out
+}
@@ -0,0 +1,60 @@
+package v0api
+
+import (
+	"context"
+
+	"github.com/filecoin-project/lotus/chain/types"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/go-state-types/abi"
+
+	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/api/v1api"
+)
+
+type WrapperV1Full struct {
+	v1api.FullNode
+}
+
+func (w *WrapperV1Full) StateSearchMsg(ctx context.Context, msg cid.Cid) (*api.MsgLookup, error) {
+	return w.FullNode.StateSearchMsg(ctx, types.EmptyTSK, msg, api.LookbackNoLimit, true)
+}
+
+func (w *WrapperV1Full) StateSearchMsgLimited(ctx context.Context, msg cid.Cid, limit abi.ChainEpoch) (*api.MsgLookup, error) {
+	return w.FullNode.StateSearchMsg(ctx, types.EmptyTSK, msg, limit, true)
+}
+
+func (w *WrapperV1Full) StateWaitMsg(ctx context.Context, msg cid.Cid, confidence uint64) (*api.MsgLookup, error) {
+	return w.FullNode.StateWaitMsg(ctx, msg, confidence, api.LookbackNoLimit, true)
+}
+
+func (w *WrapperV1Full) StateWaitMsgLimited(ctx context.Context, msg cid.Cid, confidence uint64, limit abi.ChainEpoch) (*api.MsgLookup, error) {
+	return w.FullNode.StateWaitMsg(ctx, msg, confidence, limit, true)
+}
+
+func (w *WrapperV1Full) StateGetReceipt(ctx context.Context, msg cid.Cid, from types.TipSetKey) (*types.MessageReceipt, error) {
+	ml, err := w.FullNode.StateSearchMsg(ctx, from, msg, api.LookbackNoLimit, true)
+	if err != nil {
+		return nil, err
+	}
+
+	if ml == nil {
+		return nil, nil
+	}
+
+	return &ml.Receipt, nil
+}
+
+func (w *WrapperV1Full) Version(ctx context.Context) (api.APIVersion, error) {
+	ver, err := w.FullNode.Version(ctx)
+	if err != nil {
+		return api.APIVersion{}, err
+	}
+
+	ver.APIVersion = api.FullAPIVersion0
+
+	return ver, nil
+}
+
+var _ FullNode = &WrapperV1Full{}
@@ -0,0 +1,12 @@
+package v1api
+
+import (
+	"github.com/filecoin-project/lotus/api"
+)
+
+type FullNode = api.FullNode
+type FullNodeStruct = api.FullNodeStruct
+
+func PermissionedFullAPI(a FullNode) FullNode {
+	return api.PermissionedFullAPI(a)
+}
@@ -0,0 +1,73 @@
+package api
+
+import (
+	"fmt"
+
+	xerrors "golang.org/x/xerrors"
+)
+
+type Version uint32
+
+func newVer(major, minor, patch uint8) Version {
+	return Version(uint32(major)<<16 | uint32(minor)<<8 | uint32(patch))
+}
+
+// Ints returns (major, minor, patch) versions
+func (ve Version) Ints() (uint32, uint32, uint32) {
+	v := uint32(ve)
+	return (v & majorOnlyMask) >> 16, (v & minorOnlyMask) >> 8, v & patchOnlyMask
+}
+
+func (ve Version) String() string {
+	vmj, vmi, vp := ve.Ints()
+	return fmt.Sprintf("%d.%d.%d", vmj, vmi, vp)
+}
+
+func (ve Version) EqMajorMinor(v2 Version) bool {
+	return ve&minorMask == v2&minorMask
+}
+
+type NodeType int
+
+const (
+	NodeUnknown NodeType = iota
+
+	NodeFull
+	NodeMiner
+	NodeWorker
+)
+
+var RunningNodeType NodeType
+
+func VersionForType(nodeType NodeType) (Version, error) {
+	switch nodeType {
+	case NodeFull:
+		return FullAPIVersion1, nil
+	case NodeMiner:
+		return MinerAPIVersion0, nil
+	case NodeWorker:
+		return WorkerAPIVersion0, nil
+	default:
+		return Version(0), xerrors.Errorf("unknown node type %d", nodeType)
+	}
+}
+
+// semver versions of the rpc api exposed
+var (
+	FullAPIVersion0 = newVer(1, 3, 0)
+	FullAPIVersion1 = newVer(2, 1, 0)
+
+	MinerAPIVersion0  = newVer(1, 0, 1)
+	WorkerAPIVersion0 = newVer(1, 0, 0)
+)
+
+//nolint:varcheck,deadcode
+const (
+	majorMask = 0xff0000
+	minorMask = 0xffff00
+	patchMask = 0xffffff
+
+	majorOnlyMask = 0xff0000
+	minorOnlyMask = 0x00ff00
+	patchOnlyMask = 0x0000ff
+)
@@ -0,0 +1,32 @@
+package api
+
+import (
+	"reflect"
+)
+
+// Wrap adapts partial api impl to another version
+// proxyT is the proxy type used as input in wrapperT
+// Usage: Wrap(new(v1api.FullNodeStruct), new(v0api.WrapperV1Full), eventsApi).(EventAPI)
+func Wrap(proxyT, wrapperT, impl interface{}) interface{} {
+	proxy := reflect.New(reflect.TypeOf(proxyT).Elem())
+	proxyMethods := proxy.Elem().FieldByName("Internal")
+	ri := reflect.ValueOf(impl)
+
+	for i := 0; i < ri.NumMethod(); i++ {
+		mt := ri.Type().Method(i)
+		if proxyMethods.FieldByName(mt.Name).Kind() == reflect.Invalid {
+			continue
+		}
+
+		fn := ri.Method(i)
+		of := proxyMethods.FieldByName(mt.Name)
+
+		proxyMethods.FieldByName(mt.Name).Set(reflect.MakeFunc(of.Type(), func(args []reflect.Value) (results []reflect.Value) {
+			return fn.Call(args)
+		}))
+	}
+
+	wp := reflect.New(reflect.TypeOf(wrapperT).Elem())
+	wp.Elem().Field(0).Set(proxy)
+	return wp.Interface()
+}
@@ -0,0 +1,66 @@
+package blockstore
+
+import (
+	"context"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+	"golang.org/x/xerrors"
+)
+
+type ChainIO interface {
+	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
+	ChainHasObj(context.Context, cid.Cid) (bool, error)
+}
+
+type apiBlockstore struct {
+	api ChainIO
+}
+
+// This blockstore is adapted in the constructor.
+var _ BasicBlockstore = (*apiBlockstore)(nil)
+
+func NewAPIBlockstore(cio ChainIO) Blockstore {
+	bs := &apiBlockstore{api: cio}
+	return Adapt(bs) // return an adapted blockstore.
+}
+
+func (a *apiBlockstore) DeleteBlock(cid.Cid) error {
+	return xerrors.New("not supported")
+}
+
+func (a *apiBlockstore) Has(c cid.Cid) (bool, error) {
+	return a.api.ChainHasObj(context.TODO(), c)
+}
+
+func (a *apiBlockstore) Get(c cid.Cid) (blocks.Block, error) {
+	bb, err := a.api.ChainReadObj(context.TODO(), c)
+	if err != nil {
+		return nil, err
+	}
+	return blocks.NewBlockWithCid(bb, c)
+}
+
+func (a *apiBlockstore) GetSize(c cid.Cid) (int, error) {
+	bb, err := a.api.ChainReadObj(context.TODO(), c)
+	if err != nil {
+		return 0, err
+	}
+	return len(bb), nil
+}
+
+func (a *apiBlockstore) Put(blocks.Block) error {
+	return xerrors.New("not supported")
+}
+
+func (a *apiBlockstore) PutMany([]blocks.Block) error {
+	return xerrors.New("not supported")
+}
+
+func (a *apiBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	return nil, xerrors.New("not supported")
+}
+
+func (a *apiBlockstore) HashOnRead(enabled bool) {
+	return
+}
@@ -0,0 +1,496 @@
+package badgerbs
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"runtime"
+	"sync/atomic"
+
+	"github.com/dgraph-io/badger/v2"
+	"github.com/dgraph-io/badger/v2/options"
+	"github.com/multiformats/go-base32"
+	"go.uber.org/zap"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+	logger "github.com/ipfs/go-log/v2"
+	pool "github.com/libp2p/go-buffer-pool"
+
+	"github.com/filecoin-project/lotus/blockstore"
+)
+
+var (
+	// KeyPool is the buffer pool we use to compute storage keys.
+	KeyPool *pool.BufferPool = pool.GlobalPool
+)
+
+var (
+	// ErrBlockstoreClosed is returned from blockstore operations after
+	// the blockstore has been closed.
+	ErrBlockstoreClosed = fmt.Errorf("badger blockstore closed")
+
+	log = logger.Logger("badgerbs")
+)
+
+// aliases to mask badger dependencies.
+const (
+	// FileIO is equivalent to badger/options.FileIO.
+	FileIO = options.FileIO
+	// MemoryMap is equivalent to badger/options.MemoryMap.
+	MemoryMap = options.MemoryMap
+	// LoadToRAM is equivalent to badger/options.LoadToRAM.
+	LoadToRAM = options.LoadToRAM
+)
+
+// Options embeds the badger options themselves, and augments them with
+// blockstore-specific options.
+type Options struct {
+	badger.Options
+
+	// Prefix is an optional prefix to prepend to keys. Default: "".
+	Prefix string
+}
+
+func DefaultOptions(path string) Options {
+	return Options{
+		Options: badger.DefaultOptions(path),
+		Prefix:  "",
+	}
+}
+
+// badgerLogger is a local wrapper for go-log to make the interface
+// compatible with badger.Logger (namely, aliasing Warnf to Warningf)
+type badgerLogger struct {
+	*zap.SugaredLogger // skips 1 caller to get useful line info, skipping over badger.Options.
+
+	skip2 *zap.SugaredLogger // skips 2 callers, just like above + this logger.
+}
+
+// Warningf is required by the badger logger APIs.
+func (b *badgerLogger) Warningf(format string, args ...interface{}) {
+	b.skip2.Warnf(format, args...)
+}
+
+const (
+	stateOpen int64 = iota
+	stateClosing
+	stateClosed
+)
+
+// Blockstore is a badger-backed IPLD blockstore.
+//
+// NOTE: once Close() is called, methods will try their best to return
+// ErrBlockstoreClosed. This will guaranteed to happen for all subsequent
+// operation calls after Close() has returned, but it may not happen for
+// operations in progress. Those are likely to fail with a different error.
+type Blockstore struct {
+	// state is accessed atomically
+	state int64
+
+	DB *badger.DB
+
+	prefixing bool
+	prefix    []byte
+	prefixLen int
+}
+
+var _ blockstore.Blockstore = (*Blockstore)(nil)
+var _ blockstore.Viewer = (*Blockstore)(nil)
+var _ io.Closer = (*Blockstore)(nil)
+
+// Open creates a new badger-backed blockstore, with the supplied options.
+func Open(opts Options) (*Blockstore, error) {
+	opts.Logger = &badgerLogger{
+		SugaredLogger: log.Desugar().WithOptions(zap.AddCallerSkip(1)).Sugar(),
+		skip2:         log.Desugar().WithOptions(zap.AddCallerSkip(2)).Sugar(),
+	}
+
+	db, err := badger.Open(opts.Options)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open badger blockstore: %w", err)
+	}
+
+	bs := &Blockstore{DB: db}
+	if p := opts.Prefix; p != "" {
+		bs.prefixing = true
+		bs.prefix = []byte(p)
+		bs.prefixLen = len(bs.prefix)
+	}
+
+	return bs, nil
+}
+
+// Close closes the store. If the store has already been closed, this noops and
+// returns an error, even if the first closure resulted in error.
+func (b *Blockstore) Close() error {
+	if !atomic.CompareAndSwapInt64(&b.state, stateOpen, stateClosing) {
+		return nil
+	}
+
+	defer atomic.StoreInt64(&b.state, stateClosed)
+	return b.DB.Close()
+}
+
+// CollectGarbage runs garbage collection on the value log
+func (b *Blockstore) CollectGarbage() error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	var err error
+	for err == nil {
+		err = b.DB.RunValueLogGC(0.125)
+	}
+
+	if err == badger.ErrNoRewrite {
+		// not really an error in this case
+		return nil
+	}
+
+	return err
+}
+
+// Compact runs a synchronous compaction
+func (b *Blockstore) Compact() error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	nworkers := runtime.NumCPU() / 2
+	if nworkers < 2 {
+		nworkers = 2
+	}
+
+	return b.DB.Flatten(nworkers)
+}
+
+// View implements blockstore.Viewer, which leverages zero-copy read-only
+// access to values.
+func (b *Blockstore) View(cid cid.Cid, fn func([]byte) error) error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(cid)
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	return b.DB.View(func(txn *badger.Txn) error {
+		switch item, err := txn.Get(k); err {
+		case nil:
+			return item.Value(fn)
+		case badger.ErrKeyNotFound:
+			return blockstore.ErrNotFound
+		default:
+			return fmt.Errorf("failed to view block from badger blockstore: %w", err)
+		}
+	})
+}
+
+// Has implements Blockstore.Has.
+func (b *Blockstore) Has(cid cid.Cid) (bool, error) {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return false, ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(cid)
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	err := b.DB.View(func(txn *badger.Txn) error {
+		_, err := txn.Get(k)
+		return err
+	})
+
+	switch err {
+	case badger.ErrKeyNotFound:
+		return false, nil
+	case nil:
+		return true, nil
+	default:
+		return false, fmt.Errorf("failed to check if block exists in badger blockstore: %w", err)
+	}
+}
+
+// Get implements Blockstore.Get.
+func (b *Blockstore) Get(cid cid.Cid) (blocks.Block, error) {
+	if !cid.Defined() {
+		return nil, blockstore.ErrNotFound
+	}
+
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return nil, ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(cid)
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	var val []byte
+	err := b.DB.View(func(txn *badger.Txn) error {
+		switch item, err := txn.Get(k); err {
+		case nil:
+			val, err = item.ValueCopy(nil)
+			return err
+		case badger.ErrKeyNotFound:
+			return blockstore.ErrNotFound
+		default:
+			return fmt.Errorf("failed to get block from badger blockstore: %w", err)
+		}
+	})
+	if err != nil {
+		return nil, err
+	}
+	return blocks.NewBlockWithCid(val, cid)
+}
+
+// GetSize implements Blockstore.GetSize.
+func (b *Blockstore) GetSize(cid cid.Cid) (int, error) {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return -1, ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(cid)
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	var size int
+	err := b.DB.View(func(txn *badger.Txn) error {
+		switch item, err := txn.Get(k); err {
+		case nil:
+			size = int(item.ValueSize())
+		case badger.ErrKeyNotFound:
+			return blockstore.ErrNotFound
+		default:
+			return fmt.Errorf("failed to get block size from badger blockstore: %w", err)
+		}
+		return nil
+	})
+	if err != nil {
+		size = -1
+	}
+	return size, err
+}
+
+// Put implements Blockstore.Put.
+func (b *Blockstore) Put(block blocks.Block) error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(block.Cid())
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	err := b.DB.Update(func(txn *badger.Txn) error {
+		return txn.Set(k, block.RawData())
+	})
+	if err != nil {
+		err = fmt.Errorf("failed to put block in badger blockstore: %w", err)
+	}
+	return err
+}
+
+// PutMany implements Blockstore.PutMany.
+func (b *Blockstore) PutMany(blocks []blocks.Block) error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	// toReturn tracks the byte slices to return to the pool, if we're using key
+	// prefixing. we can't return each slice to the pool after each Set, because
+	// badger holds on to the slice.
+	var toReturn [][]byte
+	if b.prefixing {
+		toReturn = make([][]byte, 0, len(blocks))
+		defer func() {
+			for _, b := range toReturn {
+				KeyPool.Put(b)
+			}
+		}()
+	}
+
+	batch := b.DB.NewWriteBatch()
+	defer batch.Cancel()
+
+	for _, block := range blocks {
+		k, pooled := b.PooledStorageKey(block.Cid())
+		if pooled {
+			toReturn = append(toReturn, k)
+		}
+		if err := batch.Set(k, block.RawData()); err != nil {
+			return err
+		}
+	}
+
+	err := batch.Flush()
+	if err != nil {
+		err = fmt.Errorf("failed to put blocks in badger blockstore: %w", err)
+	}
+	return err
+}
+
+// DeleteBlock implements Blockstore.DeleteBlock.
+func (b *Blockstore) DeleteBlock(cid cid.Cid) error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	k, pooled := b.PooledStorageKey(cid)
+	if pooled {
+		defer KeyPool.Put(k)
+	}
+
+	return b.DB.Update(func(txn *badger.Txn) error {
+		return txn.Delete(k)
+	})
+}
+
+func (b *Blockstore) DeleteMany(cids []cid.Cid) error {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return ErrBlockstoreClosed
+	}
+
+	// toReturn tracks the byte slices to return to the pool, if we're using key
+	// prefixing. we can't return each slice to the pool after each Set, because
+	// badger holds on to the slice.
+	var toReturn [][]byte
+	if b.prefixing {
+		toReturn = make([][]byte, 0, len(cids))
+		defer func() {
+			for _, b := range toReturn {
+				KeyPool.Put(b)
+			}
+		}()
+	}
+
+	batch := b.DB.NewWriteBatch()
+	defer batch.Cancel()
+
+	for _, cid := range cids {
+		k, pooled := b.PooledStorageKey(cid)
+		if pooled {
+			toReturn = append(toReturn, k)
+		}
+		if err := batch.Delete(k); err != nil {
+			return err
+		}
+	}
+
+	err := batch.Flush()
+	if err != nil {
+		err = fmt.Errorf("failed to delete blocks from badger blockstore: %w", err)
+	}
+	return err
+}
+
+// AllKeysChan implements Blockstore.AllKeysChan.
+func (b *Blockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	if atomic.LoadInt64(&b.state) != stateOpen {
+		return nil, ErrBlockstoreClosed
+	}
+
+	txn := b.DB.NewTransaction(false)
+	opts := badger.IteratorOptions{PrefetchSize: 100}
+	if b.prefixing {
+		opts.Prefix = b.prefix
+	}
+	iter := txn.NewIterator(opts)
+
+	ch := make(chan cid.Cid)
+	go func() {
+		defer close(ch)
+		defer iter.Close()
+
+		// NewCidV1 makes a copy of the multihash buffer, so we can reuse it to
+		// contain allocs.
+		var buf []byte
+		for iter.Rewind(); iter.Valid(); iter.Next() {
+			if ctx.Err() != nil {
+				return // context has fired.
+			}
+			if atomic.LoadInt64(&b.state) != stateOpen {
+				// open iterators will run even after the database is closed...
+				return // closing, yield.
+			}
+			k := iter.Item().Key()
+			if b.prefixing {
+				k = k[b.prefixLen:]
+			}
+
+			if reqlen := base32.RawStdEncoding.DecodedLen(len(k)); len(buf) < reqlen {
+				buf = make([]byte, reqlen)
+			}
+			if n, err := base32.RawStdEncoding.Decode(buf, k); err == nil {
+				select {
+				case ch <- cid.NewCidV1(cid.Raw, buf[:n]):
+				case <-ctx.Done():
+					return
+				}
+			} else {
+				log.Warnf("failed to decode key %s in badger AllKeysChan; err: %s", k, err)
+			}
+		}
+	}()
+
+	return ch, nil
+}
+
+// HashOnRead implements Blockstore.HashOnRead. It is not supported by this
+// blockstore.
+func (b *Blockstore) HashOnRead(_ bool) {
+	log.Warnf("called HashOnRead on badger blockstore; function not supported; ignoring")
+}
+
+// PooledStorageKey returns the storage key under which this CID is stored.
+//
+// The key is: prefix + base32_no_padding(cid.Hash)
+//
+// This method may return pooled byte slice, which MUST be returned to the
+// KeyPool if pooled=true, or a leak will occur.
+func (b *Blockstore) PooledStorageKey(cid cid.Cid) (key []byte, pooled bool) {
+	h := cid.Hash()
+	size := base32.RawStdEncoding.EncodedLen(len(h))
+	if !b.prefixing { // optimize for branch prediction.
+		k := pool.Get(size)
+		base32.RawStdEncoding.Encode(k, h)
+		return k, true // slicing upto length unnecessary; the pool has already done this.
+	}
+
+	size += b.prefixLen
+	k := pool.Get(size)
+	copy(k, b.prefix)
+	base32.RawStdEncoding.Encode(k[b.prefixLen:], h)
+	return k, true // slicing upto length unnecessary; the pool has already done this.
+}
+
+// Storage acts like PooledStorageKey, but attempts to write the storage key
+// into the provided slice. If the slice capacity is insufficient, it allocates
+// a new byte slice with enough capacity to accommodate the result. This method
+// returns the resulting slice.
+func (b *Blockstore) StorageKey(dst []byte, cid cid.Cid) []byte {
+	h := cid.Hash()
+	reqsize := base32.RawStdEncoding.EncodedLen(len(h)) + b.prefixLen
+	if reqsize > cap(dst) {
+		// passed slice is smaller than required size; create new.
+		dst = make([]byte, reqsize)
+	} else if reqsize > len(dst) {
+		// passed slice has enough capacity, but its length is
+		// restricted, expand.
+		dst = dst[:cap(dst)]
+	}
+
+	if b.prefixing { // optimize for branch prediction.
+		copy(dst, b.prefix)
+		base32.RawStdEncoding.Encode(dst[b.prefixLen:], h)
+	} else {
+		base32.RawStdEncoding.Encode(dst, h)
+	}
+	return dst[:reqsize]
+}
@@ -0,0 +1,91 @@
+package badgerbs
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/lotus/blockstore"
+)
+
+func TestBadgerBlockstore(t *testing.T) {
+	(&Suite{
+		NewBlockstore:  newBlockstore(DefaultOptions),
+		OpenBlockstore: openBlockstore(DefaultOptions),
+	}).RunTests(t, "non_prefixed")
+
+	prefixed := func(path string) Options {
+		opts := DefaultOptions(path)
+		opts.Prefix = "/prefixed/"
+		return opts
+	}
+
+	(&Suite{
+		NewBlockstore:  newBlockstore(prefixed),
+		OpenBlockstore: openBlockstore(prefixed),
+	}).RunTests(t, "prefixed")
+}
+
+func TestStorageKey(t *testing.T) {
+	bs, _ := newBlockstore(DefaultOptions)(t)
+	bbs := bs.(*Blockstore)
+	defer bbs.Close() //nolint:errcheck
+
+	cid1 := blocks.NewBlock([]byte("some data")).Cid()
+	cid2 := blocks.NewBlock([]byte("more data")).Cid()
+	cid3 := blocks.NewBlock([]byte("a little more data")).Cid()
+	require.NotEqual(t, cid1, cid2) // sanity check
+	require.NotEqual(t, cid2, cid3) // sanity check
+
+	// nil slice; let StorageKey allocate for us.
+	k1 := bbs.StorageKey(nil, cid1)
+	require.Len(t, k1, 55)
+	require.True(t, cap(k1) == len(k1))
+
+	// k1's backing array is reused.
+	k2 := bbs.StorageKey(k1, cid2)
+	require.Len(t, k2, 55)
+	require.True(t, cap(k2) == len(k1))
+
+	// bring k2 to len=0, and verify that its backing array gets reused
+	// (i.e. k1 and k2 are overwritten)
+	k3 := bbs.StorageKey(k2[:0], cid3)
+	require.Len(t, k3, 55)
+	require.True(t, cap(k3) == len(k3))
+
+	// backing array of k1 and k2 has been modified, i.e. memory is shared.
+	require.Equal(t, k3, k1)
+	require.Equal(t, k3, k2)
+}
+
+func newBlockstore(optsSupplier func(path string) Options) func(tb testing.TB) (bs blockstore.BasicBlockstore, path string) {
+	return func(tb testing.TB) (bs blockstore.BasicBlockstore, path string) {
+		tb.Helper()
+
+		path, err := ioutil.TempDir("", "")
+		if err != nil {
+			tb.Fatal(err)
+		}
+
+		db, err := Open(optsSupplier(path))
+		if err != nil {
+			tb.Fatal(err)
+		}
+
+		tb.Cleanup(func() {
+			_ = os.RemoveAll(path)
+		})
+
+		return db, path
+	}
+}
+
+func openBlockstore(optsSupplier func(path string) Options) func(tb testing.TB, path string) (bs blockstore.BasicBlockstore, err error) {
+	return func(tb testing.TB, path string) (bs blockstore.BasicBlockstore, err error) {
+		tb.Helper()
+		return Open(optsSupplier(path))
+	}
+}
@@ -0,0 +1,313 @@
+package badgerbs
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"reflect"
+	"strings"
+	"testing"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+	u "github.com/ipfs/go-ipfs-util"
+
+	"github.com/filecoin-project/lotus/blockstore"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TODO: move this to go-ipfs-blockstore.
+type Suite struct {
+	NewBlockstore  func(tb testing.TB) (bs blockstore.BasicBlockstore, path string)
+	OpenBlockstore func(tb testing.TB, path string) (bs blockstore.BasicBlockstore, err error)
+}
+
+func (s *Suite) RunTests(t *testing.T, prefix string) {
+	v := reflect.TypeOf(s)
+	f := func(t *testing.T) {
+		for i := 0; i < v.NumMethod(); i++ {
+			if m := v.Method(i); strings.HasPrefix(m.Name, "Test") {
+				f := m.Func.Interface().(func(*Suite, *testing.T))
+				t.Run(m.Name, func(t *testing.T) {
+					f(s, t)
+				})
+			}
+		}
+	}
+
+	if prefix == "" {
+		f(t)
+	} else {
+		t.Run(prefix, f)
+	}
+}
+
+func (s *Suite) TestGetWhenKeyNotPresent(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	c := cid.NewCidV0(u.Hash([]byte("stuff")))
+	bl, err := bs.Get(c)
+	require.Nil(t, bl)
+	require.Equal(t, blockstore.ErrNotFound, err)
+}
+
+func (s *Suite) TestGetWhenKeyIsNil(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	_, err := bs.Get(cid.Undef)
+	require.Equal(t, blockstore.ErrNotFound, err)
+}
+
+func (s *Suite) TestPutThenGetBlock(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	orig := blocks.NewBlock([]byte("some data"))
+
+	err := bs.Put(orig)
+	require.NoError(t, err)
+
+	fetched, err := bs.Get(orig.Cid())
+	require.NoError(t, err)
+	require.Equal(t, orig.RawData(), fetched.RawData())
+}
+
+func (s *Suite) TestHas(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	orig := blocks.NewBlock([]byte("some data"))
+
+	err := bs.Put(orig)
+	require.NoError(t, err)
+
+	ok, err := bs.Has(orig.Cid())
+	require.NoError(t, err)
+	require.True(t, ok)
+
+	ok, err = bs.Has(blocks.NewBlock([]byte("another thing")).Cid())
+	require.NoError(t, err)
+	require.False(t, ok)
+}
+
+func (s *Suite) TestCidv0v1(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	orig := blocks.NewBlock([]byte("some data"))
+
+	err := bs.Put(orig)
+	require.NoError(t, err)
+
+	fetched, err := bs.Get(cid.NewCidV1(cid.DagProtobuf, orig.Cid().Hash()))
+	require.NoError(t, err)
+	require.Equal(t, orig.RawData(), fetched.RawData())
+}
+
+func (s *Suite) TestPutThenGetSizeBlock(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	block := blocks.NewBlock([]byte("some data"))
+	missingBlock := blocks.NewBlock([]byte("missingBlock"))
+	emptyBlock := blocks.NewBlock([]byte{})
+
+	err := bs.Put(block)
+	require.NoError(t, err)
+
+	blockSize, err := bs.GetSize(block.Cid())
+	require.NoError(t, err)
+	require.Len(t, block.RawData(), blockSize)
+
+	err = bs.Put(emptyBlock)
+	require.NoError(t, err)
+
+	emptySize, err := bs.GetSize(emptyBlock.Cid())
+	require.NoError(t, err)
+	require.Zero(t, emptySize)
+
+	missingSize, err := bs.GetSize(missingBlock.Cid())
+	require.Equal(t, blockstore.ErrNotFound, err)
+	require.Equal(t, -1, missingSize)
+}
+
+func (s *Suite) TestAllKeysSimple(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	keys := insertBlocks(t, bs, 100)
+
+	ctx := context.Background()
+	ch, err := bs.AllKeysChan(ctx)
+	require.NoError(t, err)
+	actual := collect(ch)
+
+	require.ElementsMatch(t, keys, actual)
+}
+
+func (s *Suite) TestAllKeysRespectsContext(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	_ = insertBlocks(t, bs, 100)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	ch, err := bs.AllKeysChan(ctx)
+	require.NoError(t, err)
+
+	// consume 2, then cancel context.
+	v, ok := <-ch
+	require.NotEqual(t, cid.Undef, v)
+	require.True(t, ok)
+
+	v, ok = <-ch
+	require.NotEqual(t, cid.Undef, v)
+	require.True(t, ok)
+
+	cancel()
+	// pull one value out to avoid race
+	_, _ = <-ch
+
+	v, ok = <-ch
+	require.Equal(t, cid.Undef, v)
+	require.False(t, ok)
+}
+
+func (s *Suite) TestDoubleClose(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	c, ok := bs.(io.Closer)
+	if !ok {
+		t.SkipNow()
+	}
+	require.NoError(t, c.Close())
+	require.NoError(t, c.Close())
+}
+
+func (s *Suite) TestReopenPutGet(t *testing.T) {
+	bs, path := s.NewBlockstore(t)
+	c, ok := bs.(io.Closer)
+	if !ok {
+		t.SkipNow()
+	}
+
+	orig := blocks.NewBlock([]byte("some data"))
+	err := bs.Put(orig)
+	require.NoError(t, err)
+
+	err = c.Close()
+	require.NoError(t, err)
+
+	bs, err = s.OpenBlockstore(t, path)
+	require.NoError(t, err)
+
+	fetched, err := bs.Get(orig.Cid())
+	require.NoError(t, err)
+	require.Equal(t, orig.RawData(), fetched.RawData())
+
+	err = bs.(io.Closer).Close()
+	require.NoError(t, err)
+}
+
+func (s *Suite) TestPutMany(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	blks := []blocks.Block{
+		blocks.NewBlock([]byte("foo1")),
+		blocks.NewBlock([]byte("foo2")),
+		blocks.NewBlock([]byte("foo3")),
+	}
+	err := bs.PutMany(blks)
+	require.NoError(t, err)
+
+	for _, blk := range blks {
+		fetched, err := bs.Get(blk.Cid())
+		require.NoError(t, err)
+		require.Equal(t, blk.RawData(), fetched.RawData())
+
+		ok, err := bs.Has(blk.Cid())
+		require.NoError(t, err)
+		require.True(t, ok)
+	}
+
+	ch, err := bs.AllKeysChan(context.Background())
+	require.NoError(t, err)
+
+	cids := collect(ch)
+	require.Len(t, cids, 3)
+}
+
+func (s *Suite) TestDelete(t *testing.T) {
+	bs, _ := s.NewBlockstore(t)
+	if c, ok := bs.(io.Closer); ok {
+		defer func() { require.NoError(t, c.Close()) }()
+	}
+
+	blks := []blocks.Block{
+		blocks.NewBlock([]byte("foo1")),
+		blocks.NewBlock([]byte("foo2")),
+		blocks.NewBlock([]byte("foo3")),
+	}
+	err := bs.PutMany(blks)
+	require.NoError(t, err)
+
+	err = bs.DeleteBlock(blks[1].Cid())
+	require.NoError(t, err)
+
+	ch, err := bs.AllKeysChan(context.Background())
+	require.NoError(t, err)
+
+	cids := collect(ch)
+	require.Len(t, cids, 2)
+	require.ElementsMatch(t, cids, []cid.Cid{
+		cid.NewCidV1(cid.Raw, blks[0].Cid().Hash()),
+		cid.NewCidV1(cid.Raw, blks[2].Cid().Hash()),
+	})
+
+	has, err := bs.Has(blks[1].Cid())
+	require.NoError(t, err)
+	require.False(t, has)
+
+}
+
+func insertBlocks(t *testing.T, bs blockstore.BasicBlockstore, count int) []cid.Cid {
+	keys := make([]cid.Cid, count)
+	for i := 0; i < count; i++ {
+		block := blocks.NewBlock([]byte(fmt.Sprintf("some data %d", i)))
+		err := bs.Put(block)
+		require.NoError(t, err)
+		// NewBlock assigns a CIDv0; we convert it to CIDv1 because that's what
+		// the store returns.
+		keys[i] = cid.NewCidV1(cid.Raw, block.Multihash())
+	}
+	return keys
+}
+
+func collect(ch <-chan cid.Cid) []cid.Cid {
+	var keys []cid.Cid
+	for k := range ch {
+		keys = append(keys, k)
+	}
+	return keys
+}
@@ -0,0 +1,95 @@
+package blockstore
+
+import (
+	cid "github.com/ipfs/go-cid"
+	ds "github.com/ipfs/go-datastore"
+	logging "github.com/ipfs/go-log/v2"
+
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
+)
+
+var log = logging.Logger("blockstore")
+
+var ErrNotFound = blockstore.ErrNotFound
+
+// Blockstore is the blockstore interface used by Lotus. It is the union
+// of the basic go-ipfs blockstore, with other capabilities required by Lotus,
+// e.g. View or Sync.
+type Blockstore interface {
+	blockstore.Blockstore
+	blockstore.Viewer
+	BatchDeleter
+}
+
+// BasicBlockstore is an alias to the original IPFS Blockstore.
+type BasicBlockstore = blockstore.Blockstore
+
+type Viewer = blockstore.Viewer
+
+type BatchDeleter interface {
+	DeleteMany(cids []cid.Cid) error
+}
+
+// WrapIDStore wraps the underlying blockstore in an "identity" blockstore.
+// The ID store filters out all puts for blocks with CIDs using the "identity"
+// hash function. It also extracts inlined blocks from CIDs using the identity
+// hash function and returns them on get/has, ignoring the contents of the
+// blockstore.
+func WrapIDStore(bstore blockstore.Blockstore) Blockstore {
+	if is, ok := bstore.(*idstore); ok {
+		// already wrapped
+		return is
+	}
+
+	if bs, ok := bstore.(Blockstore); ok {
+		// we need to wrap our own because we don't want to neuter the DeleteMany method
+		// the underlying blockstore has implemented an (efficient) DeleteMany
+		return NewIDStore(bs)
+	}
+
+	// The underlying blockstore does not implement DeleteMany, so we need to shim it.
+	// This is less efficient as it'll iterate and perform single deletes.
+	return NewIDStore(Adapt(bstore))
+}
+
+// FromDatastore creates a new blockstore backed by the given datastore.
+func FromDatastore(dstore ds.Batching) Blockstore {
+	return WrapIDStore(blockstore.NewBlockstore(dstore))
+}
+
+type adaptedBlockstore struct {
+	blockstore.Blockstore
+}
+
+var _ Blockstore = (*adaptedBlockstore)(nil)
+
+func (a *adaptedBlockstore) View(cid cid.Cid, callback func([]byte) error) error {
+	blk, err := a.Get(cid)
+	if err != nil {
+		return err
+	}
+	return callback(blk.RawData())
+}
+
+func (a *adaptedBlockstore) DeleteMany(cids []cid.Cid) error {
+	for _, cid := range cids {
+		err := a.DeleteBlock(cid)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// Adapt adapts a standard blockstore to a Lotus blockstore by
+// enriching it with the extra methods that Lotus requires (e.g. View, Sync).
+//
+// View proxies over to Get and calls the callback with the value supplied by Get.
+// Sync noops.
+func Adapt(bs blockstore.Blockstore) Blockstore {
+	if ret, ok := bs.(Blockstore); ok {
+		return ret
+	}
+	return &adaptedBlockstore{bs}
+}
@@ -0,0 +1,174 @@
+package blockstore
+
+import (
+	"context"
+	"os"
+
+	block "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+)
+
+// buflog is a logger for the buffered blockstore. It is subscoped from the
+// blockstore logger.
+var buflog = log.Named("buf")
+
+type BufferedBlockstore struct {
+	read  Blockstore
+	write Blockstore
+}
+
+func NewBuffered(base Blockstore) *BufferedBlockstore {
+	var buf Blockstore
+	if os.Getenv("LOTUS_DISABLE_VM_BUF") == "iknowitsabadidea" {
+		buflog.Warn("VM BLOCKSTORE BUFFERING IS DISABLED")
+		buf = base
+	} else {
+		buf = NewMemory()
+	}
+
+	bs := &BufferedBlockstore{
+		read:  base,
+		write: buf,
+	}
+	return bs
+}
+
+func NewTieredBstore(r Blockstore, w Blockstore) *BufferedBlockstore {
+	return &BufferedBlockstore{
+		read:  r,
+		write: w,
+	}
+}
+
+var (
+	_ Blockstore = (*BufferedBlockstore)(nil)
+	_ Viewer     = (*BufferedBlockstore)(nil)
+)
+
+func (bs *BufferedBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	a, err := bs.read.AllKeysChan(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	b, err := bs.write.AllKeysChan(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make(chan cid.Cid)
+	go func() {
+		defer close(out)
+		for a != nil || b != nil {
+			select {
+			case val, ok := <-a:
+				if !ok {
+					a = nil
+				} else {
+					select {
+					case out <- val:
+					case <-ctx.Done():
+						return
+					}
+				}
+			case val, ok := <-b:
+				if !ok {
+					b = nil
+				} else {
+					select {
+					case out <- val:
+					case <-ctx.Done():
+						return
+					}
+				}
+			}
+		}
+	}()
+
+	return out, nil
+}
+
+func (bs *BufferedBlockstore) DeleteBlock(c cid.Cid) error {
+	if err := bs.read.DeleteBlock(c); err != nil {
+		return err
+	}
+
+	return bs.write.DeleteBlock(c)
+}
+
+func (bs *BufferedBlockstore) DeleteMany(cids []cid.Cid) error {
+	if err := bs.read.DeleteMany(cids); err != nil {
+		return err
+	}
+
+	return bs.write.DeleteMany(cids)
+}
+
+func (bs *BufferedBlockstore) View(c cid.Cid, callback func([]byte) error) error {
+	// both stores are viewable.
+	if err := bs.write.View(c, callback); err == ErrNotFound {
+		// not found in write blockstore; fall through.
+	} else {
+		return err // propagate errors, or nil, i.e. found.
+	}
+	return bs.read.View(c, callback)
+}
+
+func (bs *BufferedBlockstore) Get(c cid.Cid) (block.Block, error) {
+	if out, err := bs.write.Get(c); err != nil {
+		if err != ErrNotFound {
+			return nil, err
+		}
+	} else {
+		return out, nil
+	}
+
+	return bs.read.Get(c)
+}
+
+func (bs *BufferedBlockstore) GetSize(c cid.Cid) (int, error) {
+	s, err := bs.read.GetSize(c)
+	if err == ErrNotFound || s == 0 {
+		return bs.write.GetSize(c)
+	}
+
+	return s, err
+}
+
+func (bs *BufferedBlockstore) Put(blk block.Block) error {
+	has, err := bs.read.Has(blk.Cid()) // TODO: consider dropping this check
+	if err != nil {
+		return err
+	}
+
+	if has {
+		return nil
+	}
+
+	return bs.write.Put(blk)
+}
+
+func (bs *BufferedBlockstore) Has(c cid.Cid) (bool, error) {
+	has, err := bs.write.Has(c)
+	if err != nil {
+		return false, err
+	}
+	if has {
+		return true, nil
+	}
+
+	return bs.read.Has(c)
+}
+
+func (bs *BufferedBlockstore) HashOnRead(hor bool) {
+	bs.read.HashOnRead(hor)
+	bs.write.HashOnRead(hor)
+}
+
+func (bs *BufferedBlockstore) PutMany(blks []block.Block) error {
+	return bs.write.PutMany(blks)
+}
+
+func (bs *BufferedBlockstore) Read() Blockstore {
+	return bs.read
+}
@@ -0,0 +1,9 @@
+// Package blockstore and subpackages contain most of the blockstore
+// implementations used by Lotus.
+//
+// Blockstores not ultimately constructed out of the building blocks in this
+// package may not work properly.
+//
+// This package re-exports parts of the go-ipfs-blockstore package such that
+// no other package needs to import it directly, for ergonomics and traceability.
+package blockstore
@@ -0,0 +1,106 @@
+package blockstore
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"golang.org/x/xerrors"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+)
+
+// UnwrapFallbackStore takes a blockstore, and returns the underlying blockstore
+// if it was a FallbackStore. Otherwise, it just returns the supplied store
+// unmodified.
+func UnwrapFallbackStore(bs Blockstore) (Blockstore, bool) {
+	if fbs, ok := bs.(*FallbackStore); ok {
+		return fbs.Blockstore, true
+	}
+	return bs, false
+}
+
+// FallbackStore is a read-through store that queries another (potentially
+// remote) source if the block is not found locally. If the block is found
+// during the fallback, it stores it in the local store.
+type FallbackStore struct {
+	Blockstore
+
+	lk sync.RWMutex
+	// missFn is the function that will be invoked on a local miss to pull the
+	// block from elsewhere.
+	missFn func(context.Context, cid.Cid) (blocks.Block, error)
+}
+
+var _ Blockstore = (*FallbackStore)(nil)
+
+func (fbs *FallbackStore) SetFallback(missFn func(context.Context, cid.Cid) (blocks.Block, error)) {
+	fbs.lk.Lock()
+	defer fbs.lk.Unlock()
+
+	fbs.missFn = missFn
+}
+
+func (fbs *FallbackStore) getFallback(c cid.Cid) (blocks.Block, error) {
+	log.Warnf("fallbackstore: block not found locally, fetching from the network; cid: %s", c)
+	fbs.lk.RLock()
+	defer fbs.lk.RUnlock()
+
+	if fbs.missFn == nil {
+		// FallbackStore wasn't configured yet (chainstore/bitswap aren't up yet)
+		// Wait for a bit and retry
+		fbs.lk.RUnlock()
+		time.Sleep(5 * time.Second)
+		fbs.lk.RLock()
+
+		if fbs.missFn == nil {
+			log.Errorw("fallbackstore: missFn not configured yet")
+			return nil, ErrNotFound
+		}
+	}
+
+	ctx, cancel := context.WithTimeout(context.TODO(), 120*time.Second)
+	defer cancel()
+
+	b, err := fbs.missFn(ctx, c)
+	if err != nil {
+		return nil, err
+	}
+
+	// chain bitswap puts blocks in temp blockstore which is cleaned up
+	// every few min (to drop any messages we fetched but don't want)
+	// in this case we want to keep this block around
+	if err := fbs.Put(b); err != nil {
+		return nil, xerrors.Errorf("persisting fallback-fetched block: %w", err)
+	}
+	return b, nil
+}
+
+func (fbs *FallbackStore) Get(c cid.Cid) (blocks.Block, error) {
+	b, err := fbs.Blockstore.Get(c)
+	switch err {
+	case nil:
+		return b, nil
+	case ErrNotFound:
+		return fbs.getFallback(c)
+	default:
+		return b, err
+	}
+}
+
+func (fbs *FallbackStore) GetSize(c cid.Cid) (int, error) {
+	sz, err := fbs.Blockstore.GetSize(c)
+	switch err {
+	case nil:
+		return sz, nil
+	case ErrNotFound:
+		b, err := fbs.getFallback(c)
+		if err != nil {
+			return 0, err
+		}
+		return len(b.RawData()), nil
+	default:
+		return sz, err
+	}
+}
@@ -0,0 +1,174 @@
+package blockstore
+
+import (
+	"context"
+	"io"
+
+	"golang.org/x/xerrors"
+
+	blocks "github.com/ipfs/go-block-format"
+	cid "github.com/ipfs/go-cid"
+	mh "github.com/multiformats/go-multihash"
+)
+
+var _ Blockstore = (*idstore)(nil)
+
+type idstore struct {
+	bs Blockstore
+}
+
+func NewIDStore(bs Blockstore) Blockstore {
+	return &idstore{bs: bs}
+}
+
+func decodeCid(cid cid.Cid) (inline bool, data []byte, err error) {
+	if cid.Prefix().MhType != mh.IDENTITY {
+		return false, nil, nil
+	}
+
+	dmh, err := mh.Decode(cid.Hash())
+	if err != nil {
+		return false, nil, err
+	}
+
+	if dmh.Code == mh.IDENTITY {
+		return true, dmh.Digest, nil
+	}
+
+	return false, nil, err
+}
+
+func (b *idstore) Has(cid cid.Cid) (bool, error) {
+	inline, _, err := decodeCid(cid)
+	if err != nil {
+		return false, xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return true, nil
+	}
+
+	return b.bs.Has(cid)
+}
+
+func (b *idstore) Get(cid cid.Cid) (blocks.Block, error) {
+	inline, data, err := decodeCid(cid)
+	if err != nil {
+		return nil, xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return blocks.NewBlockWithCid(data, cid)
+	}
+
+	return b.bs.Get(cid)
+}
+
+func (b *idstore) GetSize(cid cid.Cid) (int, error) {
+	inline, data, err := decodeCid(cid)
+	if err != nil {
+		return 0, xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return len(data), err
+	}
+
+	return b.bs.GetSize(cid)
+}
+
+func (b *idstore) View(cid cid.Cid, cb func([]byte) error) error {
+	inline, data, err := decodeCid(cid)
+	if err != nil {
+		return xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return cb(data)
+	}
+
+	return b.bs.View(cid, cb)
+}
+
+func (b *idstore) Put(blk blocks.Block) error {
+	inline, _, err := decodeCid(blk.Cid())
+	if err != nil {
+		return xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return nil
+	}
+
+	return b.bs.Put(blk)
+}
+
+func (b *idstore) PutMany(blks []blocks.Block) error {
+	toPut := make([]blocks.Block, 0, len(blks))
+	for _, blk := range blks {
+		inline, _, err := decodeCid(blk.Cid())
+		if err != nil {
+			return xerrors.Errorf("error decoding Cid: %w", err)
+		}
+
+		if inline {
+			continue
+		}
+		toPut = append(toPut, blk)
+	}
+
+	if len(toPut) > 0 {
+		return b.bs.PutMany(toPut)
+	}
+
+	return nil
+}
+
+func (b *idstore) DeleteBlock(cid cid.Cid) error {
+	inline, _, err := decodeCid(cid)
+	if err != nil {
+		return xerrors.Errorf("error decoding Cid: %w", err)
+	}
+
+	if inline {
+		return nil
+	}
+
+	return b.bs.DeleteBlock(cid)
+}
+
+func (b *idstore) DeleteMany(cids []cid.Cid) error {
+	toDelete := make([]cid.Cid, 0, len(cids))
+	for _, cid := range cids {
+		inline, _, err := decodeCid(cid)
+		if err != nil {
+			return xerrors.Errorf("error decoding Cid: %w", err)
+		}
+
+		if inline {
+			continue
+		}
+		toDelete = append(toDelete, cid)
+	}
+
+	if len(toDelete) > 0 {
+		return b.bs.DeleteMany(toDelete)
+	}
+
+	return nil
+}
+
+func (b *idstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	return b.bs.AllKeysChan(ctx)
+}
+
+func (b *idstore) HashOnRead(enabled bool) {
+	b.bs.HashOnRead(enabled)
+}
+
+func (b *idstore) Close() error {
+	if c, ok := b.bs.(io.Closer); ok {
+		return c.Close()
+	}
+	return nil
+}
@@ -1,4 +1,4 @@
-package ipfsbstore
+package blockstore

 import (
 	"bytes"
@@ -16,53 +16,75 @@ import (
 	iface "github.com/ipfs/interface-go-ipfs-core"
 	"github.com/ipfs/interface-go-ipfs-core/options"
 	"github.com/ipfs/interface-go-ipfs-core/path"
-
-	"github.com/filecoin-project/lotus/lib/blockstore"
 )

-type IpfsBstore struct {
-	ctx context.Context
-	api iface.CoreAPI
+type IPFSBlockstore struct {
+	ctx             context.Context
+	api, offlineAPI iface.CoreAPI
 }

-func NewIpfsBstore(ctx context.Context) (*IpfsBstore, error) {
+var _ BasicBlockstore = (*IPFSBlockstore)(nil)
+
+func NewLocalIPFSBlockstore(ctx context.Context, onlineMode bool) (Blockstore, error) {
 	localApi, err := httpapi.NewLocalApi()
 	if err != nil {
 		return nil, xerrors.Errorf("getting local ipfs api: %w", err)
 	}
-	api, err := localApi.WithOptions(options.Api.Offline(true))
+	api, err := localApi.WithOptions(options.Api.Offline(!onlineMode))
 	if err != nil {
 		return nil, xerrors.Errorf("setting offline mode: %s", err)
 	}

-	return &IpfsBstore{
-		ctx: ctx,
-		api: api,
-	}, nil
+	offlineAPI := api
+	if onlineMode {
+		offlineAPI, err = localApi.WithOptions(options.Api.Offline(true))
+		if err != nil {
+			return nil, xerrors.Errorf("applying offline mode: %s", err)
+		}
+	}
+
+	bs := &IPFSBlockstore{
+		ctx:        ctx,
+		api:        api,
+		offlineAPI: offlineAPI,
+	}
+
+	return Adapt(bs), nil
 }

-func NewRemoteIpfsBstore(ctx context.Context, maddr multiaddr.Multiaddr) (*IpfsBstore, error) {
+func NewRemoteIPFSBlockstore(ctx context.Context, maddr multiaddr.Multiaddr, onlineMode bool) (Blockstore, error) {
 	httpApi, err := httpapi.NewApi(maddr)
 	if err != nil {
 		return nil, xerrors.Errorf("setting remote ipfs api: %w", err)
 	}
-	api, err := httpApi.WithOptions(options.Api.Offline(true))
+	api, err := httpApi.WithOptions(options.Api.Offline(!onlineMode))
 	if err != nil {
 		return nil, xerrors.Errorf("applying offline mode: %s", err)
 	}

-	return &IpfsBstore{
-		ctx: ctx,
-		api: api,
-	}, nil
+	offlineAPI := api
+	if onlineMode {
+		offlineAPI, err = httpApi.WithOptions(options.Api.Offline(true))
+		if err != nil {
+			return nil, xerrors.Errorf("applying offline mode: %s", err)
+		}
+	}
+
+	bs := &IPFSBlockstore{
+		ctx:        ctx,
+		api:        api,
+		offlineAPI: offlineAPI,
+	}
+
+	return Adapt(bs), nil
 }

-func (i *IpfsBstore) DeleteBlock(cid cid.Cid) error {
+func (i *IPFSBlockstore) DeleteBlock(cid cid.Cid) error {
 	return xerrors.Errorf("not supported")
 }

-func (i *IpfsBstore) Has(cid cid.Cid) (bool, error) {
-	_, err := i.api.Block().Stat(i.ctx, path.IpldPath(cid))
+func (i *IPFSBlockstore) Has(cid cid.Cid) (bool, error) {
+	_, err := i.offlineAPI.Block().Stat(i.ctx, path.IpldPath(cid))
 	if err != nil {
 		// The underlying client is running in Offline mode.
 		// Stat() will fail with an err if the block isn't in the
@@ -77,7 +99,7 @@ func (i *IpfsBstore) Has(cid cid.Cid) (bool, error) {
 	return true, nil
 }

-func (i *IpfsBstore) Get(cid cid.Cid) (blocks.Block, error) {
+func (i *IPFSBlockstore) Get(cid cid.Cid) (blocks.Block, error) {
 	rd, err := i.api.Block().Get(i.ctx, path.IpldPath(cid))
 	if err != nil {
 		return nil, xerrors.Errorf("getting ipfs block: %w", err)
@@ -91,7 +113,7 @@ func (i *IpfsBstore) Get(cid cid.Cid) (blocks.Block, error) {
 	return blocks.NewBlockWithCid(data, cid)
 }

-func (i *IpfsBstore) GetSize(cid cid.Cid) (int, error) {
+func (i *IPFSBlockstore) GetSize(cid cid.Cid) (int, error) {
 	st, err := i.api.Block().Stat(i.ctx, path.IpldPath(cid))
 	if err != nil {
 		return 0, xerrors.Errorf("getting ipfs block: %w", err)
@@ -100,7 +122,7 @@ func (i *IpfsBstore) GetSize(cid cid.Cid) (int, error) {
 	return st.Size(), nil
 }

-func (i *IpfsBstore) Put(block blocks.Block) error {
+func (i *IPFSBlockstore) Put(block blocks.Block) error {
 	mhd, err := multihash.Decode(block.Cid().Hash())
 	if err != nil {
 		return err
@@ -112,7 +134,7 @@ func (i *IpfsBstore) Put(block blocks.Block) error {
 	return err
 }

-func (i *IpfsBstore) PutMany(blocks []blocks.Block) error {
+func (i *IPFSBlockstore) PutMany(blocks []blocks.Block) error {
 	// TODO: could be done in parallel

 	for _, block := range blocks {
@@ -124,12 +146,10 @@ func (i *IpfsBstore) PutMany(blocks []blocks.Block) error {
 	return nil
 }

-func (i *IpfsBstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+func (i *IPFSBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
 	return nil, xerrors.Errorf("not supported")
 }

-func (i *IpfsBstore) HashOnRead(enabled bool) {
+func (i *IPFSBlockstore) HashOnRead(enabled bool) {
 	return // TODO: We could technically support this, but..
 }
-
-var _ blockstore.Blockstore = &IpfsBstore{}
@@ -5,38 +5,60 @@ import (

 	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
-	blockstore "github.com/ipfs/go-ipfs-blockstore"
 )

-type MemStore map[cid.Cid]blocks.Block
+// NewMemory returns a temporary memory-backed blockstore.
+func NewMemory() MemBlockstore {
+	return make(MemBlockstore)
+}

-func (m MemStore) DeleteBlock(k cid.Cid) error {
+// MemBlockstore is a terminal blockstore that keeps blocks in memory.
+type MemBlockstore map[cid.Cid]blocks.Block
+
+func (m MemBlockstore) DeleteBlock(k cid.Cid) error {
 	delete(m, k)
 	return nil
 }
-func (m MemStore) Has(k cid.Cid) (bool, error) {
+
+func (m MemBlockstore) DeleteMany(ks []cid.Cid) error {
+	for _, k := range ks {
+		delete(m, k)
+	}
+	return nil
+}
+
+func (m MemBlockstore) Has(k cid.Cid) (bool, error) {
 	_, ok := m[k]
 	return ok, nil
 }
-func (m MemStore) Get(k cid.Cid) (blocks.Block, error) {
+
+func (m MemBlockstore) View(k cid.Cid, callback func([]byte) error) error {
 	b, ok := m[k]
 	if !ok {
-		return nil, blockstore.ErrNotFound
+		return ErrNotFound
+	}
+	return callback(b.RawData())
+}
+
+func (m MemBlockstore) Get(k cid.Cid) (blocks.Block, error) {
+	b, ok := m[k]
+	if !ok {
+		return nil, ErrNotFound
 	}
 	return b, nil
 }

 // GetSize returns the CIDs mapped BlockSize
-func (m MemStore) GetSize(k cid.Cid) (int, error) {
+func (m MemBlockstore) GetSize(k cid.Cid) (int, error) {
 	b, ok := m[k]
 	if !ok {
-		return 0, blockstore.ErrNotFound
+		return 0, ErrNotFound
 	}
 	return len(b.RawData()), nil
 }

 // Put puts a given block to the underlying datastore
-func (m MemStore) Put(b blocks.Block) error {
+func (m MemBlockstore) Put(b blocks.Block) error {
 	// Convert to a basic block for safety, but try to reuse the existing
 	// block if it's already a basic block.
 	k := b.Cid()
@@ -54,7 +76,7 @@ func (m MemStore) Put(b blocks.Block) error {

 // PutMany puts a slice of blocks at the same time using batching
 // capabilities of the underlying datastore whenever possible.
-func (m MemStore) PutMany(bs []blocks.Block) error {
+func (m MemBlockstore) PutMany(bs []blocks.Block) error {
 	for _, b := range bs {
 		_ = m.Put(b) // can't fail
 	}
@@ -64,7 +86,7 @@ func (m MemStore) PutMany(bs []blocks.Block) error {
 // AllKeysChan returns a channel from which
 // the CIDs in the Blockstore can be read. It should respect
 // the given context, closing the channel if it becomes Done.
-func (m MemStore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+func (m MemBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
 	ch := make(chan cid.Cid, len(m))
 	for k := range m {
 		ch <- k
@@ -75,6 +97,6 @@ func (m MemStore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {

 // HashOnRead specifies if every read block should be
 // rehashed to make sure it matches its CID.
-func (m MemStore) HashOnRead(enabled bool) {
+func (m MemBlockstore) HashOnRead(enabled bool) {
 	// no-op
 }
@@ -0,0 +1,154 @@
+package blockstore
+
+import (
+	"time"
+
+	"go.opencensus.io/stats"
+	"go.opencensus.io/stats/view"
+	"go.opencensus.io/tag"
+)
+
+//
+// Currently unused, but kept in repo in case we introduce one of the candidate
+// cache implementations (Freecache, Ristretto), both of which report these
+// metrics.
+//
+
+// CacheMetricsEmitInterval is the interval at which metrics are emitted onto
+// OpenCensus.
+var CacheMetricsEmitInterval = 5 * time.Second
+
+var (
+	CacheName, _ = tag.NewKey("cache_name")
+)
+
+// CacheMeasures groups all metrics emitted by the blockstore caches.
+var CacheMeasures = struct {
+	HitRatio       *stats.Float64Measure
+	Hits           *stats.Int64Measure
+	Misses         *stats.Int64Measure
+	Entries        *stats.Int64Measure
+	QueriesServed  *stats.Int64Measure
+	Adds           *stats.Int64Measure
+	Updates        *stats.Int64Measure
+	Evictions      *stats.Int64Measure
+	CostAdded      *stats.Int64Measure
+	CostEvicted    *stats.Int64Measure
+	SetsDropped    *stats.Int64Measure
+	SetsRejected   *stats.Int64Measure
+	QueriesDropped *stats.Int64Measure
+}{
+	HitRatio:       stats.Float64("blockstore/cache/hit_ratio", "Hit ratio of blockstore cache", stats.UnitDimensionless),
+	Hits:           stats.Int64("blockstore/cache/hits", "Total number of hits at blockstore cache", stats.UnitDimensionless),
+	Misses:         stats.Int64("blockstore/cache/misses", "Total number of misses at blockstore cache", stats.UnitDimensionless),
+	Entries:        stats.Int64("blockstore/cache/entry_count", "Total number of entries currently in the blockstore cache", stats.UnitDimensionless),
+	QueriesServed:  stats.Int64("blockstore/cache/queries_served", "Total number of queries served by the blockstore cache", stats.UnitDimensionless),
+	Adds:           stats.Int64("blockstore/cache/adds", "Total number of adds to blockstore cache", stats.UnitDimensionless),
+	Updates:        stats.Int64("blockstore/cache/updates", "Total number of updates in blockstore cache", stats.UnitDimensionless),
+	Evictions:      stats.Int64("blockstore/cache/evictions", "Total number of evictions from blockstore cache", stats.UnitDimensionless),
+	CostAdded:      stats.Int64("blockstore/cache/cost_added", "Total cost (byte size) of entries added into blockstore cache", stats.UnitBytes),
+	CostEvicted:    stats.Int64("blockstore/cache/cost_evicted", "Total cost (byte size) of entries evicted by blockstore cache", stats.UnitBytes),
+	SetsDropped:    stats.Int64("blockstore/cache/sets_dropped", "Total number of sets dropped by blockstore cache", stats.UnitDimensionless),
+	SetsRejected:   stats.Int64("blockstore/cache/sets_rejected", "Total number of sets rejected by blockstore cache", stats.UnitDimensionless),
+	QueriesDropped: stats.Int64("blockstore/cache/queries_dropped", "Total number of queries dropped by blockstore cache", stats.UnitDimensionless),
+}
+
+// CacheViews groups all cache-related default views.
+var CacheViews = struct {
+	HitRatio       *view.View
+	Hits           *view.View
+	Misses         *view.View
+	Entries        *view.View
+	QueriesServed  *view.View
+	Adds           *view.View
+	Updates        *view.View
+	Evictions      *view.View
+	CostAdded      *view.View
+	CostEvicted    *view.View
+	SetsDropped    *view.View
+	SetsRejected   *view.View
+	QueriesDropped *view.View
+}{
+	HitRatio: &view.View{
+		Measure:     CacheMeasures.HitRatio,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Hits: &view.View{
+		Measure:     CacheMeasures.Hits,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Misses: &view.View{
+		Measure:     CacheMeasures.Misses,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Entries: &view.View{
+		Measure:     CacheMeasures.Entries,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	QueriesServed: &view.View{
+		Measure:     CacheMeasures.QueriesServed,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Adds: &view.View{
+		Measure:     CacheMeasures.Adds,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Updates: &view.View{
+		Measure:     CacheMeasures.Updates,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	Evictions: &view.View{
+		Measure:     CacheMeasures.Evictions,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	CostAdded: &view.View{
+		Measure:     CacheMeasures.CostAdded,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	CostEvicted: &view.View{
+		Measure:     CacheMeasures.CostEvicted,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	SetsDropped: &view.View{
+		Measure:     CacheMeasures.SetsDropped,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	SetsRejected: &view.View{
+		Measure:     CacheMeasures.SetsRejected,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+	QueriesDropped: &view.View{
+		Measure:     CacheMeasures.QueriesDropped,
+		Aggregation: view.LastValue(),
+		TagKeys:     []tag.Key{CacheName},
+	},
+}
+
+// DefaultViews exports all default views for this package.
+var DefaultViews = []*view.View{
+	CacheViews.HitRatio,
+	CacheViews.Hits,
+	CacheViews.Misses,
+	CacheViews.Entries,
+	CacheViews.QueriesServed,
+	CacheViews.Adds,
+	CacheViews.Updates,
+	CacheViews.Evictions,
+	CacheViews.CostAdded,
+	CacheViews.CostEvicted,
+	CacheViews.SetsDropped,
+	CacheViews.SetsRejected,
+	CacheViews.QueriesDropped,
+}
@@ -0,0 +1,38 @@
+package splitstore
+
+import (
+	"path/filepath"
+
+	"golang.org/x/xerrors"
+
+	cid "github.com/ipfs/go-cid"
+)
+
+// MarkSet is a utility to keep track of seen CID, and later query for them.
+//
+// * If the expected dataset is large, it can be backed by a datastore (e.g. bbolt).
+// * If a probabilistic result is acceptable, it can be backed by a bloom filter (default).
+type MarkSet interface {
+	Mark(cid.Cid) error
+	Has(cid.Cid) (bool, error)
+	Close() error
+}
+
+// markBytes is deliberately a non-nil empty byte slice for serialization.
+var markBytes = []byte{}
+
+type MarkSetEnv interface {
+	Create(name string, sizeHint int64) (MarkSet, error)
+	Close() error
+}
+
+func OpenMarkSetEnv(path string, mtype string) (MarkSetEnv, error) {
+	switch mtype {
+	case "", "bloom":
+		return NewBloomMarkSetEnv()
+	case "bolt":
+		return NewBoltMarkSetEnv(filepath.Join(path, "markset.bolt"))
+	default:
+		return nil, xerrors.Errorf("unknown mark set type %s", mtype)
+	}
+}
@@ -0,0 +1,77 @@
+package splitstore
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+
+	"golang.org/x/xerrors"
+
+	bbloom "github.com/ipfs/bbloom"
+	cid "github.com/ipfs/go-cid"
+)
+
+const (
+	BloomFilterMinSize     = 10_000_000
+	BloomFilterProbability = 0.01
+)
+
+type BloomMarkSetEnv struct{}
+
+var _ MarkSetEnv = (*BloomMarkSetEnv)(nil)
+
+type BloomMarkSet struct {
+	salt []byte
+	bf   *bbloom.Bloom
+}
+
+var _ MarkSet = (*BloomMarkSet)(nil)
+
+func NewBloomMarkSetEnv() (*BloomMarkSetEnv, error) {
+	return &BloomMarkSetEnv{}, nil
+}
+
+func (e *BloomMarkSetEnv) Create(name string, sizeHint int64) (MarkSet, error) {
+	size := int64(BloomFilterMinSize)
+	for size < sizeHint {
+		size += BloomFilterMinSize
+	}
+
+	salt := make([]byte, 4)
+	_, err := rand.Read(salt)
+	if err != nil {
+		return nil, xerrors.Errorf("error reading salt: %w", err)
+	}
+
+	bf, err := bbloom.New(float64(size), BloomFilterProbability)
+	if err != nil {
+		return nil, xerrors.Errorf("error creating bloom filter: %w", err)
+	}
+
+	return &BloomMarkSet{salt: salt, bf: bf}, nil
+}
+
+func (e *BloomMarkSetEnv) Close() error {
+	return nil
+}
+
+func (s *BloomMarkSet) saltedKey(cid cid.Cid) []byte {
+	hash := cid.Hash()
+	key := make([]byte, len(s.salt)+len(hash))
+	n := copy(key, s.salt)
+	copy(key[n:], hash)
+	rehash := sha256.Sum256(key)
+	return rehash[:]
+}
+
+func (s *BloomMarkSet) Mark(cid cid.Cid) error {
+	s.bf.Add(s.saltedKey(cid))
+	return nil
+}
+
+func (s *BloomMarkSet) Has(cid cid.Cid) (bool, error) {
+	return s.bf.Has(s.saltedKey(cid)), nil
+}
+
+func (s *BloomMarkSet) Close() error {
+	return nil
+}
@@ -0,0 +1,81 @@
+package splitstore
+
+import (
+	"time"
+
+	"golang.org/x/xerrors"
+
+	cid "github.com/ipfs/go-cid"
+	bolt "go.etcd.io/bbolt"
+)
+
+type BoltMarkSetEnv struct {
+	db *bolt.DB
+}
+
+var _ MarkSetEnv = (*BoltMarkSetEnv)(nil)
+
+type BoltMarkSet struct {
+	db       *bolt.DB
+	bucketId []byte
+}
+
+var _ MarkSet = (*BoltMarkSet)(nil)
+
+func NewBoltMarkSetEnv(path string) (*BoltMarkSetEnv, error) {
+	db, err := bolt.Open(path, 0644,
+		&bolt.Options{
+			Timeout: 1 * time.Second,
+			NoSync:  true,
+		})
+	if err != nil {
+		return nil, err
+	}
+
+	return &BoltMarkSetEnv{db: db}, nil
+}
+
+func (e *BoltMarkSetEnv) Create(name string, hint int64) (MarkSet, error) {
+	bucketId := []byte(name)
+	err := e.db.Update(func(tx *bolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists(bucketId)
+		if err != nil {
+			return xerrors.Errorf("error creating bolt db bucket %s: %w", name, err)
+		}
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &BoltMarkSet{db: e.db, bucketId: bucketId}, nil
+}
+
+func (e *BoltMarkSetEnv) Close() error {
+	return e.db.Close()
+}
+
+func (s *BoltMarkSet) Mark(cid cid.Cid) error {
+	return s.db.Update(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		return b.Put(cid.Hash(), markBytes)
+	})
+}
+
+func (s *BoltMarkSet) Has(cid cid.Cid) (result bool, err error) {
+	err = s.db.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		v := b.Get(cid.Hash())
+		result = v != nil
+		return nil
+	})
+
+	return result, err
+}
+
+func (s *BoltMarkSet) Close() error {
+	return s.db.Update(func(tx *bolt.Tx) error {
+		return tx.DeleteBucket(s.bucketId)
+	})
+}
@@ -0,0 +1,138 @@
+package splitstore
+
+import (
+	"io/ioutil"
+	"testing"
+
+	cid "github.com/ipfs/go-cid"
+	"github.com/multiformats/go-multihash"
+)
+
+func TestBoltMarkSet(t *testing.T) {
+	testMarkSet(t, "bolt")
+}
+
+func TestBloomMarkSet(t *testing.T) {
+	testMarkSet(t, "bloom")
+}
+
+func testMarkSet(t *testing.T, lsType string) {
+	t.Helper()
+
+	path, err := ioutil.TempDir("", "sweep-test.*")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	env, err := OpenMarkSetEnv(path, lsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer env.Close() //nolint:errcheck
+
+	hotSet, err := env.Create("hot", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	coldSet, err := env.Create("cold", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustHave := func(s MarkSet, cid cid.Cid) {
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !has {
+			t.Fatal("mark not found")
+		}
+	}
+
+	mustNotHave := func(s MarkSet, cid cid.Cid) {
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("unexpected mark")
+		}
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	hotSet.Mark(k1)  //nolint
+	hotSet.Mark(k2)  //nolint
+	coldSet.Mark(k3) //nolint
+
+	mustHave(hotSet, k1)
+	mustHave(hotSet, k2)
+	mustNotHave(hotSet, k3)
+	mustNotHave(hotSet, k4)
+
+	mustNotHave(coldSet, k1)
+	mustNotHave(coldSet, k2)
+	mustHave(coldSet, k3)
+	mustNotHave(coldSet, k4)
+
+	// close them and reopen to redo the dance
+
+	err = hotSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = coldSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hotSet, err = env.Create("hot", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	coldSet, err = env.Create("cold", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hotSet.Mark(k3)  //nolint
+	hotSet.Mark(k4)  //nolint
+	coldSet.Mark(k1) //nolint
+
+	mustNotHave(hotSet, k1)
+	mustNotHave(hotSet, k2)
+	mustHave(hotSet, k3)
+	mustHave(hotSet, k4)
+
+	mustHave(coldSet, k1)
+	mustNotHave(coldSet, k2)
+	mustNotHave(coldSet, k3)
+	mustNotHave(coldSet, k4)
+
+	err = hotSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = coldSet.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+}
@@ -0,0 +1,255 @@
+package splitstore
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/lotus/blockstore"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/types/mock"
+
+	cid "github.com/ipfs/go-cid"
+	datastore "github.com/ipfs/go-datastore"
+	dssync "github.com/ipfs/go-datastore/sync"
+	logging "github.com/ipfs/go-log/v2"
+)
+
+func init() {
+	CompactionThreshold = 5
+	CompactionCold = 1
+	CompactionBoundary = 2
+	logging.SetLogLevel("splitstore", "DEBUG")
+}
+
+func testSplitStore(t *testing.T, cfg *Config) {
+	chain := &mockChain{}
+	// genesis
+	genBlock := mock.MkBlock(nil, 0, 0)
+	genTs := mock.TipSet(genBlock)
+	chain.push(genTs)
+
+	// the myriads of stores
+	ds := dssync.MutexWrap(datastore.NewMapDatastore())
+	hot := blockstore.NewMemorySync()
+	cold := blockstore.NewMemorySync()
+
+	// put the genesis block to cold store
+	blk, err := genBlock.ToStorageBlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = cold.Put(blk)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// open the splitstore
+	ss, err := Open("", ds, hot, cold, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ss.Close() //nolint
+
+	err = ss.Start(chain)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// make some tipsets, but not enough to cause compaction
+	mkBlock := func(curTs *types.TipSet, i int) *types.TipSet {
+		blk := mock.MkBlock(curTs, uint64(i), uint64(i))
+		sblk, err := blk.ToStorageBlock()
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = ss.Put(sblk)
+		if err != nil {
+			t.Fatal(err)
+		}
+		ts := mock.TipSet(blk)
+		chain.push(ts)
+
+		return ts
+	}
+
+	mkGarbageBlock := func(curTs *types.TipSet, i int) {
+		blk := mock.MkBlock(curTs, uint64(i), uint64(i))
+		sblk, err := blk.ToStorageBlock()
+		if err != nil {
+			t.Fatal(err)
+		}
+		err = ss.Put(sblk)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	waitForCompaction := func() {
+		for atomic.LoadInt32(&ss.compacting) == 1 {
+			time.Sleep(100 * time.Millisecond)
+		}
+	}
+
+	curTs := genTs
+	for i := 1; i < 5; i++ {
+		curTs = mkBlock(curTs, i)
+		waitForCompaction()
+	}
+
+	mkGarbageBlock(genTs, 1)
+
+	// count objects in the cold and hot stores
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	countBlocks := func(bs blockstore.Blockstore) int {
+		count := 0
+		ch, err := bs.AllKeysChan(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		for range ch {
+			count++
+		}
+		return count
+	}
+
+	coldCnt := countBlocks(cold)
+	hotCnt := countBlocks(hot)
+
+	if coldCnt != 1 {
+		t.Errorf("expected %d blocks, but got %d", 1, coldCnt)
+	}
+
+	if hotCnt != 5 {
+		t.Errorf("expected %d blocks, but got %d", 5, hotCnt)
+	}
+
+	// trigger a compaction
+	for i := 5; i < 10; i++ {
+		curTs = mkBlock(curTs, i)
+		waitForCompaction()
+	}
+
+	coldCnt = countBlocks(cold)
+	hotCnt = countBlocks(hot)
+
+	if !cfg.EnableFullCompaction {
+		if coldCnt != 5 {
+			t.Errorf("expected %d cold blocks, but got %d", 5, coldCnt)
+		}
+
+		if hotCnt != 5 {
+			t.Errorf("expected %d hot blocks, but got %d", 5, hotCnt)
+		}
+	}
+
+	if cfg.EnableFullCompaction && !cfg.EnableGC {
+		if coldCnt != 3 {
+			t.Errorf("expected %d cold blocks, but got %d", 3, coldCnt)
+		}
+
+		if hotCnt != 7 {
+			t.Errorf("expected %d hot blocks, but got %d", 7, hotCnt)
+		}
+	}
+
+	if cfg.EnableFullCompaction && cfg.EnableGC {
+		if coldCnt != 2 {
+			t.Errorf("expected %d cold blocks, but got %d", 2, coldCnt)
+		}
+
+		if hotCnt != 7 {
+			t.Errorf("expected %d hot blocks, but got %d", 7, hotCnt)
+		}
+	}
+}
+
+func TestSplitStoreSimpleCompaction(t *testing.T) {
+	testSplitStore(t, &Config{TrackingStoreType: "mem"})
+}
+
+func TestSplitStoreFullCompactionWithoutGC(t *testing.T) {
+	testSplitStore(t, &Config{
+		TrackingStoreType:    "mem",
+		EnableFullCompaction: true,
+	})
+}
+
+func TestSplitStoreFullCompactionWithGC(t *testing.T) {
+	testSplitStore(t, &Config{
+		TrackingStoreType:    "mem",
+		EnableFullCompaction: true,
+		EnableGC:             true,
+	})
+}
+
+type mockChain struct {
+	sync.Mutex
+	tipsets  []*types.TipSet
+	listener func(revert []*types.TipSet, apply []*types.TipSet) error
+}
+
+func (c *mockChain) push(ts *types.TipSet) {
+	c.Lock()
+	c.tipsets = append(c.tipsets, ts)
+	c.Unlock()
+
+	if c.listener != nil {
+		err := c.listener(nil, []*types.TipSet{ts})
+		if err != nil {
+			log.Errorf("mockchain: error dispatching listener: %s", err)
+		}
+	}
+}
+
+func (c *mockChain) GetTipsetByHeight(_ context.Context, epoch abi.ChainEpoch, _ *types.TipSet, _ bool) (*types.TipSet, error) {
+	c.Lock()
+	defer c.Unlock()
+
+	iEpoch := int(epoch)
+	if iEpoch > len(c.tipsets) {
+		return nil, fmt.Errorf("bad epoch %d", epoch)
+	}
+
+	return c.tipsets[iEpoch-1], nil
+}
+
+func (c *mockChain) GetHeaviestTipSet() *types.TipSet {
+	c.Lock()
+	defer c.Unlock()
+
+	return c.tipsets[len(c.tipsets)-1]
+}
+
+func (c *mockChain) SubscribeHeadChanges(change func(revert []*types.TipSet, apply []*types.TipSet) error) {
+	c.listener = change
+}
+
+func (c *mockChain) WalkSnapshot(_ context.Context, ts *types.TipSet, epochs abi.ChainEpoch, _ bool, _ bool, f func(cid.Cid) error) error {
+	c.Lock()
+	defer c.Unlock()
+
+	start := int(ts.Height()) - 1
+	end := start - int(epochs)
+	if end < 0 {
+		end = -1
+	}
+	for i := start; i > end; i-- {
+		ts := c.tipsets[i]
+		for _, cid := range ts.Cids() {
+			err := f(cid)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
@@ -0,0 +1,109 @@
+package splitstore
+
+import (
+	"path/filepath"
+	"sync"
+
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	cid "github.com/ipfs/go-cid"
+)
+
+// TrackingStore is a persistent store that tracks blocks that are added
+// to the hotstore, tracking the epoch at which they are written.
+type TrackingStore interface {
+	Put(cid.Cid, abi.ChainEpoch) error
+	PutBatch([]cid.Cid, abi.ChainEpoch) error
+	Get(cid.Cid) (abi.ChainEpoch, error)
+	Delete(cid.Cid) error
+	DeleteBatch([]cid.Cid) error
+	ForEach(func(cid.Cid, abi.ChainEpoch) error) error
+	Sync() error
+	Close() error
+}
+
+// OpenTrackingStore opens a tracking store of the specified type in the
+// specified path.
+func OpenTrackingStore(path string, ttype string) (TrackingStore, error) {
+	switch ttype {
+	case "", "bolt":
+		return OpenBoltTrackingStore(filepath.Join(path, "tracker.bolt"))
+	case "mem":
+		return NewMemTrackingStore(), nil
+	default:
+		return nil, xerrors.Errorf("unknown tracking store type %s", ttype)
+	}
+}
+
+// NewMemTrackingStore creates an in-memory tracking store.
+// This is only useful for test or situations where you don't want to open the
+// real tracking store (eg concurrent read only access on a node's datastore)
+func NewMemTrackingStore() *MemTrackingStore {
+	return &MemTrackingStore{tab: make(map[cid.Cid]abi.ChainEpoch)}
+}
+
+// MemTrackingStore is a simple in-memory tracking store
+type MemTrackingStore struct {
+	sync.Mutex
+	tab map[cid.Cid]abi.ChainEpoch
+}
+
+var _ TrackingStore = (*MemTrackingStore)(nil)
+
+func (s *MemTrackingStore) Put(cid cid.Cid, epoch abi.ChainEpoch) error {
+	s.Lock()
+	defer s.Unlock()
+	s.tab[cid] = epoch
+	return nil
+}
+
+func (s *MemTrackingStore) PutBatch(cids []cid.Cid, epoch abi.ChainEpoch) error {
+	s.Lock()
+	defer s.Unlock()
+	for _, cid := range cids {
+		s.tab[cid] = epoch
+	}
+	return nil
+}
+
+func (s *MemTrackingStore) Get(cid cid.Cid) (abi.ChainEpoch, error) {
+	s.Lock()
+	defer s.Unlock()
+	epoch, ok := s.tab[cid]
+	if ok {
+		return epoch, nil
+	}
+	return 0, xerrors.Errorf("missing tracking epoch for %s", cid)
+}
+
+func (s *MemTrackingStore) Delete(cid cid.Cid) error {
+	s.Lock()
+	defer s.Unlock()
+	delete(s.tab, cid)
+	return nil
+}
+
+func (s *MemTrackingStore) DeleteBatch(cids []cid.Cid) error {
+	s.Lock()
+	defer s.Unlock()
+	for _, cid := range cids {
+		delete(s.tab, cid)
+	}
+	return nil
+}
+
+func (s *MemTrackingStore) ForEach(f func(cid.Cid, abi.ChainEpoch) error) error {
+	s.Lock()
+	defer s.Unlock()
+	for cid, epoch := range s.tab {
+		err := f(cid, epoch)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (s *MemTrackingStore) Sync() error  { return nil }
+func (s *MemTrackingStore) Close() error { return nil }
@@ -0,0 +1,120 @@
+package splitstore
+
+import (
+	"time"
+
+	"golang.org/x/xerrors"
+
+	cid "github.com/ipfs/go-cid"
+	bolt "go.etcd.io/bbolt"
+
+	"github.com/filecoin-project/go-state-types/abi"
+)
+
+type BoltTrackingStore struct {
+	db       *bolt.DB
+	bucketId []byte
+}
+
+var _ TrackingStore = (*BoltTrackingStore)(nil)
+
+func OpenBoltTrackingStore(path string) (*BoltTrackingStore, error) {
+	opts := &bolt.Options{
+		Timeout: 1 * time.Second,
+		NoSync:  true,
+	}
+	db, err := bolt.Open(path, 0644, opts)
+	if err != nil {
+		return nil, err
+	}
+
+	bucketId := []byte("tracker")
+	err = db.Update(func(tx *bolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists(bucketId)
+		if err != nil {
+			return xerrors.Errorf("error creating bolt db bucket %s: %w", string(bucketId), err)
+		}
+		return nil
+	})
+
+	if err != nil {
+		_ = db.Close()
+		return nil, err
+	}
+
+	return &BoltTrackingStore{db: db, bucketId: bucketId}, nil
+}
+
+func (s *BoltTrackingStore) Put(cid cid.Cid, epoch abi.ChainEpoch) error {
+	val := epochToBytes(epoch)
+	return s.db.Batch(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		return b.Put(cid.Hash(), val)
+	})
+}
+
+func (s *BoltTrackingStore) PutBatch(cids []cid.Cid, epoch abi.ChainEpoch) error {
+	val := epochToBytes(epoch)
+	return s.db.Batch(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		for _, cid := range cids {
+			err := b.Put(cid.Hash(), val)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (s *BoltTrackingStore) Get(cid cid.Cid) (epoch abi.ChainEpoch, err error) {
+	err = s.db.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		val := b.Get(cid.Hash())
+		if val == nil {
+			return xerrors.Errorf("missing tracking epoch for %s", cid)
+		}
+		epoch = bytesToEpoch(val)
+		return nil
+	})
+	return epoch, err
+}
+
+func (s *BoltTrackingStore) Delete(cid cid.Cid) error {
+	return s.db.Batch(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		return b.Delete(cid.Hash())
+	})
+}
+
+func (s *BoltTrackingStore) DeleteBatch(cids []cid.Cid) error {
+	return s.db.Batch(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		for _, cid := range cids {
+			err := b.Delete(cid.Hash())
+			if err != nil {
+				return xerrors.Errorf("error deleting %s", cid)
+			}
+		}
+		return nil
+	})
+}
+
+func (s *BoltTrackingStore) ForEach(f func(cid.Cid, abi.ChainEpoch) error) error {
+	return s.db.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket(s.bucketId)
+		return b.ForEach(func(k, v []byte) error {
+			cid := cid.NewCidV1(cid.Raw, k)
+			epoch := bytesToEpoch(v)
+			return f(cid, epoch)
+		})
+	})
+}
+
+func (s *BoltTrackingStore) Sync() error {
+	return s.db.Sync()
+}
+
+func (s *BoltTrackingStore) Close() error {
+	return s.db.Close()
+}
@@ -0,0 +1,130 @@
+package splitstore
+
+import (
+	"io/ioutil"
+	"testing"
+
+	cid "github.com/ipfs/go-cid"
+	"github.com/multiformats/go-multihash"
+
+	"github.com/filecoin-project/go-state-types/abi"
+)
+
+func TestBoltTrackingStore(t *testing.T) {
+	testTrackingStore(t, "bolt")
+}
+
+func testTrackingStore(t *testing.T, tsType string) {
+	t.Helper()
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustHave := func(s TrackingStore, cid cid.Cid, epoch abi.ChainEpoch) {
+		val, err := s.Get(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if val != epoch {
+			t.Fatal("epoch mismatch")
+		}
+	}
+
+	mustNotHave := func(s TrackingStore, cid cid.Cid) {
+		_, err := s.Get(cid)
+		if err == nil {
+			t.Fatal("expected error")
+		}
+	}
+
+	path, err := ioutil.TempDir("", "snoop-test.*")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	s, err := OpenTrackingStore(path, tsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	s.Put(k1, 1) //nolint
+	s.Put(k2, 2) //nolint
+	s.Put(k3, 3) //nolint
+	s.Put(k4, 4) //nolint
+
+	mustHave(s, k1, 1)
+	mustHave(s, k2, 2)
+	mustHave(s, k3, 3)
+	mustHave(s, k4, 4)
+
+	s.Delete(k1) // nolint
+	s.Delete(k2) // nolint
+
+	mustNotHave(s, k1)
+	mustNotHave(s, k2)
+	mustHave(s, k3, 3)
+	mustHave(s, k4, 4)
+
+	s.PutBatch([]cid.Cid{k1}, 1) //nolint
+	s.PutBatch([]cid.Cid{k2}, 2) //nolint
+
+	mustHave(s, k1, 1)
+	mustHave(s, k2, 2)
+	mustHave(s, k3, 3)
+	mustHave(s, k4, 4)
+
+	allKeys := map[string]struct{}{
+		k1.String(): {},
+		k2.String(): {},
+		k3.String(): {},
+		k4.String(): {},
+	}
+
+	err = s.ForEach(func(k cid.Cid, _ abi.ChainEpoch) error {
+		_, ok := allKeys[k.String()]
+		if !ok {
+			t.Fatal("unexpected key")
+		}
+
+		delete(allKeys, k.String())
+		return nil
+	})
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(allKeys) != 0 {
+		t.Fatal("not all keys were returned")
+	}
+
+	// no close and reopen and ensure the keys still exist
+	err = s.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	s, err = OpenTrackingStore(path, tsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(s, k1, 1)
+	mustHave(s, k2, 2)
+	mustHave(s, k3, 3)
+	mustHave(s, k4, 4)
+
+	s.Close() //nolint:errcheck
+}
@@ -0,0 +1,81 @@
+package blockstore
+
+import (
+	"context"
+	"sync"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+)
+
+// NewMemorySync returns a thread-safe in-memory blockstore.
+func NewMemorySync() *SyncBlockstore {
+	return &SyncBlockstore{bs: make(MemBlockstore)}
+}
+
+// SyncBlockstore is a terminal blockstore that is a synchronized version
+// of MemBlockstore.
+type SyncBlockstore struct {
+	mu sync.RWMutex
+	bs MemBlockstore // specifically use a memStore to save indirection overhead.
+}
+
+func (m *SyncBlockstore) DeleteBlock(k cid.Cid) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.bs.DeleteBlock(k)
+}
+
+func (m *SyncBlockstore) DeleteMany(ks []cid.Cid) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.bs.DeleteMany(ks)
+}
+
+func (m *SyncBlockstore) Has(k cid.Cid) (bool, error) {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	return m.bs.Has(k)
+}
+
+func (m *SyncBlockstore) View(k cid.Cid, callback func([]byte) error) error {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+
+	return m.bs.View(k, callback)
+}
+
+func (m *SyncBlockstore) Get(k cid.Cid) (blocks.Block, error) {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	return m.bs.Get(k)
+}
+
+func (m *SyncBlockstore) GetSize(k cid.Cid) (int, error) {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	return m.bs.GetSize(k)
+}
+
+func (m *SyncBlockstore) Put(b blocks.Block) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.bs.Put(b)
+}
+
+func (m *SyncBlockstore) PutMany(bs []blocks.Block) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.bs.PutMany(bs)
+}
+
+func (m *SyncBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	// this blockstore implementation doesn't do any async work.
+	return m.bs.AllKeysChan(ctx)
+}
+
+func (m *SyncBlockstore) HashOnRead(enabled bool) {
+	// noop
+}
@@ -1,4 +1,4 @@
-package timedbs
+package blockstore

 import (
 	"context"
@@ -10,37 +10,37 @@ import (
 	"github.com/ipfs/go-cid"
 	"github.com/raulk/clock"
 	"go.uber.org/multierr"
-
-	"github.com/filecoin-project/lotus/build"
-	"github.com/filecoin-project/lotus/lib/blockstore"
 )

-// TimedCacheBS is a blockstore that keeps blocks for at least the specified
-// caching interval before discarding them. Garbage collection must be started
-// and stopped by calling Start/Stop.
+// TimedCacheBlockstore is a blockstore that keeps blocks for at least the
+// specified caching interval before discarding them. Garbage collection must
+// be started and stopped by calling Start/Stop.
 //
 // Under the covers, it's implemented with an active and an inactive blockstore
 // that are rotated every cache time interval. This means all blocks will be
 // stored at most 2x the cache interval.
-type TimedCacheBS struct {
+//
+// Create a new instance by calling the NewTimedCacheBlockstore constructor.
+type TimedCacheBlockstore struct {
 	mu               sync.RWMutex
-	active, inactive blockstore.MemStore
+	active, inactive MemBlockstore
 	clock            clock.Clock
 	interval         time.Duration
 	closeCh          chan struct{}
 	doneRotatingCh   chan struct{}
 }

-func NewTimedCacheBS(cacheTime time.Duration) *TimedCacheBS {
-	return &TimedCacheBS{
-		active:   blockstore.NewTemporary(),
-		inactive: blockstore.NewTemporary(),
-		interval: cacheTime,
-		clock:    build.Clock,
+func NewTimedCacheBlockstore(interval time.Duration) *TimedCacheBlockstore {
+	b := &TimedCacheBlockstore{
+		active:   NewMemory(),
+		inactive: NewMemory(),
+		interval: interval,
+		clock:    clock.New(),
 	}
+	return b
 }

-func (t *TimedCacheBS) Start(ctx context.Context) error {
+func (t *TimedCacheBlockstore) Start(_ context.Context) error {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	if t.closeCh != nil {
@@ -65,11 +65,11 @@ func (t *TimedCacheBS) Start(ctx context.Context) error {
 	return nil
 }

-func (t *TimedCacheBS) Stop(ctx context.Context) error {
+func (t *TimedCacheBlockstore) Stop(_ context.Context) error {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	if t.closeCh == nil {
-		return fmt.Errorf("not started started")
+		return fmt.Errorf("not started")
 	}
 	select {
 	case <-t.closeCh:
@@ -80,15 +80,15 @@ func (t *TimedCacheBS) Stop(ctx context.Context) error {
 	return nil
 }

-func (t *TimedCacheBS) rotate() {
-	newBs := blockstore.NewTemporary()
+func (t *TimedCacheBlockstore) rotate() {
+	newBs := NewMemory()

 	t.mu.Lock()
 	t.inactive, t.active = t.active, newBs
 	t.mu.Unlock()
 }

-func (t *TimedCacheBS) Put(b blocks.Block) error {
+func (t *TimedCacheBlockstore) Put(b blocks.Block) error {
 	// Don't check the inactive set here. We want to keep this block for at
 	// least one interval.
 	t.mu.Lock()
@@ -96,33 +96,50 @@ func (t *TimedCacheBS) Put(b blocks.Block) error {
 	return t.active.Put(b)
 }

-func (t *TimedCacheBS) PutMany(bs []blocks.Block) error {
+func (t *TimedCacheBlockstore) PutMany(bs []blocks.Block) error {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	return t.active.PutMany(bs)
 }

-func (t *TimedCacheBS) Get(k cid.Cid) (blocks.Block, error) {
+func (t *TimedCacheBlockstore) View(k cid.Cid, callback func([]byte) error) error {
+	// The underlying blockstore is always a "mem" blockstore so there's no difference,
+	// from a performance perspective, between view & get. So we call Get to avoid
+	// calling an arbitrary callback while holding a lock.
+	t.mu.RLock()
+	block, err := t.active.Get(k)
+	if err == ErrNotFound {
+		block, err = t.inactive.Get(k)
+	}
+	t.mu.RUnlock()
+
+	if err != nil {
+		return err
+	}
+	return callback(block.RawData())
+}
+
+func (t *TimedCacheBlockstore) Get(k cid.Cid) (blocks.Block, error) {
 	t.mu.RLock()
 	defer t.mu.RUnlock()
 	b, err := t.active.Get(k)
-	if err == blockstore.ErrNotFound {
+	if err == ErrNotFound {
 		b, err = t.inactive.Get(k)
 	}
 	return b, err
 }

-func (t *TimedCacheBS) GetSize(k cid.Cid) (int, error) {
+func (t *TimedCacheBlockstore) GetSize(k cid.Cid) (int, error) {
 	t.mu.RLock()
 	defer t.mu.RUnlock()
 	size, err := t.active.GetSize(k)
-	if err == blockstore.ErrNotFound {
+	if err == ErrNotFound {
 		size, err = t.inactive.GetSize(k)
 	}
 	return size, err
 }

-func (t *TimedCacheBS) Has(k cid.Cid) (bool, error) {
+func (t *TimedCacheBlockstore) Has(k cid.Cid) (bool, error) {
 	t.mu.RLock()
 	defer t.mu.RUnlock()
 	if has, err := t.active.Has(k); err != nil {
@@ -133,17 +150,23 @@ func (t *TimedCacheBS) Has(k cid.Cid) (bool, error) {
 	return t.inactive.Has(k)
 }

-func (t *TimedCacheBS) HashOnRead(_ bool) {
+func (t *TimedCacheBlockstore) HashOnRead(_ bool) {
 	// no-op
 }

-func (t *TimedCacheBS) DeleteBlock(k cid.Cid) error {
+func (t *TimedCacheBlockstore) DeleteBlock(k cid.Cid) error {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	return multierr.Combine(t.active.DeleteBlock(k), t.inactive.DeleteBlock(k))
 }

-func (t *TimedCacheBS) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+func (t *TimedCacheBlockstore) DeleteMany(ks []cid.Cid) error {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	return multierr.Combine(t.active.DeleteMany(ks), t.inactive.DeleteMany(ks))
+}
+
+func (t *TimedCacheBlockstore) AllKeysChan(_ context.Context) (<-chan cid.Cid, error) {
 	t.mu.RLock()
 	defer t.mu.RUnlock()

@@ -1,4 +1,4 @@
-package timedbs
+package blockstore

 import (
 	"context"
@@ -12,8 +12,8 @@ import (
 	"github.com/ipfs/go-cid"
 )

-func TestTimedBSSimple(t *testing.T) {
-	tc := NewTimedCacheBS(10 * time.Millisecond)
+func TestTimedCacheBlockstoreSimple(t *testing.T) {
+	tc := NewTimedCacheBlockstore(10 * time.Millisecond)
 	mClock := clock.NewMock()
 	mClock.Set(time.Now())
 	tc.clock = mClock
@@ -0,0 +1,119 @@
+package blockstore
+
+import (
+	"context"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/ipfs/go-cid"
+)
+
+type unionBlockstore []Blockstore
+
+// Union returns an unioned blockstore.
+//
+// * Reads return from the first blockstore that has the value, querying in the
+//   supplied order.
+// * Writes (puts and deltes) are broadcast to all stores.
+//
+func Union(stores ...Blockstore) Blockstore {
+	return unionBlockstore(stores)
+}
+
+func (m unionBlockstore) Has(cid cid.Cid) (has bool, err error) {
+	for _, bs := range m {
+		if has, err = bs.Has(cid); has || err != nil {
+			break
+		}
+	}
+	return has, err
+}
+
+func (m unionBlockstore) Get(cid cid.Cid) (blk blocks.Block, err error) {
+	for _, bs := range m {
+		if blk, err = bs.Get(cid); err == nil || err != ErrNotFound {
+			break
+		}
+	}
+	return blk, err
+}
+
+func (m unionBlockstore) View(cid cid.Cid, callback func([]byte) error) (err error) {
+	for _, bs := range m {
+		if err = bs.View(cid, callback); err == nil || err != ErrNotFound {
+			break
+		}
+	}
+	return err
+}
+
+func (m unionBlockstore) GetSize(cid cid.Cid) (size int, err error) {
+	for _, bs := range m {
+		if size, err = bs.GetSize(cid); err == nil || err != ErrNotFound {
+			break
+		}
+	}
+	return size, err
+}
+
+func (m unionBlockstore) Put(block blocks.Block) (err error) {
+	for _, bs := range m {
+		if err = bs.Put(block); err != nil {
+			break
+		}
+	}
+	return err
+}
+
+func (m unionBlockstore) PutMany(blks []blocks.Block) (err error) {
+	for _, bs := range m {
+		if err = bs.PutMany(blks); err != nil {
+			break
+		}
+	}
+	return err
+}
+
+func (m unionBlockstore) DeleteBlock(cid cid.Cid) (err error) {
+	for _, bs := range m {
+		if err = bs.DeleteBlock(cid); err != nil {
+			break
+		}
+	}
+	return err
+}
+
+func (m unionBlockstore) DeleteMany(cids []cid.Cid) (err error) {
+	for _, bs := range m {
+		if err = bs.DeleteMany(cids); err != nil {
+			break
+		}
+	}
+	return err
+}
+
+func (m unionBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
+	// this does not deduplicate; this interface needs to be revisited.
+	outCh := make(chan cid.Cid)
+
+	go func() {
+		defer close(outCh)
+
+		for _, bs := range m {
+			ch, err := bs.AllKeysChan(ctx)
+			if err != nil {
+				return
+			}
+			for cid := range ch {
+				outCh <- cid
+			}
+		}
+	}()
+
+	return outCh, nil
+}
+
+func (m unionBlockstore) HashOnRead(enabled bool) {
+	for _, bs := range m {
+		bs.HashOnRead(enabled)
+	}
+}
@@ -0,0 +1,102 @@
+package blockstore
+
+import (
+	"context"
+	"testing"
+
+	blocks "github.com/ipfs/go-block-format"
+	"github.com/stretchr/testify/require"
+)
+
+var (
+	b0 = blocks.NewBlock([]byte("abc"))
+	b1 = blocks.NewBlock([]byte("foo"))
+	b2 = blocks.NewBlock([]byte("bar"))
+)
+
+func TestUnionBlockstore_Get(t *testing.T) {
+	m1 := NewMemory()
+	m2 := NewMemory()
+
+	_ = m1.Put(b1)
+	_ = m2.Put(b2)
+
+	u := Union(m1, m2)
+
+	v1, err := u.Get(b1.Cid())
+	require.NoError(t, err)
+	require.Equal(t, b1.RawData(), v1.RawData())
+
+	v2, err := u.Get(b2.Cid())
+	require.NoError(t, err)
+	require.Equal(t, b2.RawData(), v2.RawData())
+}
+
+func TestUnionBlockstore_Put_PutMany_Delete_AllKeysChan(t *testing.T) {
+	m1 := NewMemory()
+	m2 := NewMemory()
+
+	u := Union(m1, m2)
+
+	err := u.Put(b0)
+	require.NoError(t, err)
+
+	var has bool
+
+	// write was broadcasted to all stores.
+	has, _ = m1.Has(b0.Cid())
+	require.True(t, has)
+
+	has, _ = m2.Has(b0.Cid())
+	require.True(t, has)
+
+	has, _ = u.Has(b0.Cid())
+	require.True(t, has)
+
+	// put many.
+	err = u.PutMany([]blocks.Block{b1, b2})
+	require.NoError(t, err)
+
+	// write was broadcasted to all stores.
+	has, _ = m1.Has(b1.Cid())
+	require.True(t, has)
+
+	has, _ = m1.Has(b2.Cid())
+	require.True(t, has)
+
+	has, _ = m2.Has(b1.Cid())
+	require.True(t, has)
+
+	has, _ = m2.Has(b2.Cid())
+	require.True(t, has)
+
+	// also in the union store.
+	has, _ = u.Has(b1.Cid())
+	require.True(t, has)
+
+	has, _ = u.Has(b2.Cid())
+	require.True(t, has)
+
+	// deleted from all stores.
+	err = u.DeleteBlock(b1.Cid())
+	require.NoError(t, err)
+
+	has, _ = u.Has(b1.Cid())
+	require.False(t, has)
+
+	has, _ = m1.Has(b1.Cid())
+	require.False(t, has)
+
+	has, _ = m2.Has(b1.Cid())
+	require.False(t, has)
+
+	// check that AllKeysChan returns b0 and b2, twice (once per backing store)
+	ch, err := u.AllKeysChan(context.Background())
+	require.NoError(t, err)
+
+	var i int
+	for range ch {
+		i++
+	}
+	require.Equal(t, 4, i)
+}
@@ -2,11 +2,9 @@ package build

 import (
 	"context"
-	"os"
 	"strings"

 	"github.com/filecoin-project/lotus/lib/addrutil"
-	"golang.org/x/xerrors"

 	rice "github.com/GeertJohan/go.rice"
 	"github.com/libp2p/go-libp2p-core/peer"
@@ -17,24 +15,16 @@ func BuiltinBootstrap() ([]peer.AddrInfo, error) {
 		return nil, nil
 	}

-	var out []peer.AddrInfo
-
 	b := rice.MustFindBox("bootstrap")
-	err := b.Walk("", func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return xerrors.Errorf("failed to walk box: %w", err)
+
+	if BootstrappersFile != "" {
+		spi := b.MustString(BootstrappersFile)
+		if spi == "" {
+			return nil, nil
 		}

-		if !strings.HasSuffix(path, ".pi") {
-			return nil
-		}
-		spi := b.MustString(path)
-		if spi == "" {
-			return nil
-		}
-		pi, err := addrutil.ParseAddresses(context.TODO(), strings.Split(strings.TrimSpace(spi), "\n"))
-		out = append(out, pi...)
-		return err
-	})
-	return out, err
+		return addrutil.ParseAddresses(context.TODO(), strings.Split(strings.TrimSpace(spi), "\n"))
+	}
+
+	return nil, nil
 }
@@ -0,0 +1,2 @@
+/dns4/bootstrap-0.butterfly.fildev.network/tcp/1347/p2p/12D3KooWRkaF18SR3E6qL6dkGrozT8QJUV5VbhE9E7BZtPmHqdWJ
+/dns4/bootstrap-1.butterfly.fildev.network/tcp/1347/p2p/12D3KooWJcJUc23WJjJHGSboGcU3t76z9Lb7CghrH2tiBiDCY4ux
@@ -0,0 +1,4 @@
+/dns4/bootstrap-0.calibration.fildev.network/tcp/1347/p2p/12D3KooWJkikQQkxS58spo76BYzFt4fotaT5NpV2zngvrqm4u5ow
+/dns4/bootstrap-1.calibration.fildev.network/tcp/1347/p2p/12D3KooWLce5FDHR4EX4CrYavphA5xS3uDsX6aoowXh5tzDUxJav
+/dns4/bootstrap-2.calibration.fildev.network/tcp/1347/p2p/12D3KooWA9hFfQG9GjP6bHeuQQbMD3FDtZLdW1NayxKXUT26PQZu
+/dns4/bootstrap-3.calibration.fildev.network/tcp/1347/p2p/12D3KooWMHDi3LVTFG8Szqogt7RkNXvonbQYqSazxBx41A5aeuVz
@@ -7,7 +7,7 @@
 /dns4/bootstrap-6.mainnet.filops.net/tcp/1347/p2p/12D3KooWP5MwCiqdMETF9ub1P3MbCvQCcfconnYHbWg6sUJcDRQQ
 /dns4/bootstrap-7.mainnet.filops.net/tcp/1347/p2p/12D3KooWRs3aY1p3juFjPy8gPN95PEQChm2QKGUCAdcDCC4EBMKf
 /dns4/bootstrap-8.mainnet.filops.net/tcp/1347/p2p/12D3KooWScFR7385LTyR4zU1bYdzSiiAb5rnNABfVahPvVSzyTkR
-/dns4/lotus-bootstrap.forceup.cn/tcp/41778/p2p/12D3KooWFQsv3nRMUevZNWWsY1Wu6NUzUbawnWU5NcRhgKuJA37C
+/dns4/lotus-bootstrap.ipfsforce.com/tcp/41778/p2p/12D3KooWGhufNmZHF3sv48aQeS13ng5XVJZ9E6qy2Ms4VzqeUsHk
 /dns4/bootstrap-0.starpool.in/tcp/12757/p2p/12D3KooWGHpBMeZbestVEWkfdnC9u7p6uFHXL1n7m1ZBqsEmiUzz
 /dns4/bootstrap-1.starpool.in/tcp/12757/p2p/12D3KooWQZrGH1PxSNZPum99M1zNvjNFM33d1AAu5DcvdHptuU7u
 /dns4/node.glif.io/tcp/1235/p2p/12D3KooWBF8cpp65hp2u9LK5mh19x67ftAam84z9LsfaquTDSBpt
@@ -0,0 +1,4 @@
+/dns4/bootstrap-2.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWQcL6ReWmR6ASWx4iT7EiAmxKDQpvgq1MKNTQZp5NPnWW
+/dns4/bootstrap-0.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWGyJCwCm7EfupM15CFPXM4c7zRVHwwwjcuy9umaGeztMX
+/dns4/bootstrap-3.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWNK9RmfksKXSCQj7ZwAM7L6roqbN4kwJteihq7yPvSgPs
+/dns4/bootstrap-1.nerpa.interplanetary.dev/tcp/1347/p2p/12D3KooWCWSaH6iUyXYspYxELjDfzToBsyVGVz3QvC7ysXv7wESo
@@ -14,7 +14,7 @@ func MaybeGenesis() []byte {
 		log.Warnf("loading built-in genesis: %s", err)
 		return nil
 	}
-	genBytes, err := builtinGen.Bytes("devnet.car")
+	genBytes, err := builtinGen.Bytes(GenesisFile)
 	if err != nil {
 		log.Warnf("loading built-in genesis: %s", err)
 	}
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
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