Backports: parity stable 2.0.9 (#9786)

* version: bump parity stable to 2.0.9

* ethcore: bump ropsten forkblock checkpoint (#9775)

* ethcore: handle vm exception when estimating gas (#9615)

* update jsonrpc-core to a1b2bb742ce16d1168669ffb13ffe856e8131228

* removed "rustup" & added new runner tag (#9731)

* removed "rustup" & added new runner tag

* exchanged tag "rust-windows" with "windows"

* revert windows tag change

* Allow zero chain id in EIP155 signing process (#9792)

* Allow zero chain id in EIP155 signing process

* Rename test

* Fix test failure

* Insert dev account before unlocking (#9813)

.gitlab-ci.yml

@@ -1,232 +1,181 @@
 stages:
   - test
-  - push-release
   - build
+  - publish
+  - optional
+
+image:                             parity/rust:gitlab-ci
+
 variables:
-  RUST_BACKTRACE: "1"
-  RUSTFLAGS: ""
-  CARGOFLAGS: ""
-  CI_SERVER_NAME: "GitLab CI"
+  CI_SERVER_NAME:                  "GitLab CI"
+  CARGO_HOME:                      "${CI_PROJECT_DIR}/.cargo"
+  BUILD_TARGET:                    ubuntu
+  BUILD_ARCH:                      amd64
+  CARGO_TARGET:                    x86_64-unknown-linux-gnu
+
 cache:
-  key: "$CI_BUILD_STAGE-$CI_BUILD_REF_NAME"
+  key:                             "${CI_JOB_NAME}"
   paths:
-    - target/
-  untracked: true
-linux-amd64:
-  stage: build
-  image: parity/rust:gitlab-ci
-  only:
+    - ./target
+    - ./.cargo
+
+.releaseable_branches:             # list of git refs for building GitLab artifacts (think "pre-release binaries")
+  only:                            &releaseable_branches
+    - stable
     - beta
     - tags
-    - stable
-    - triggers
+    - schedules
+
+.collect_artifacts:                &collect_artifacts
+  artifacts:
+    name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
+    when:                          on_success
+    expire_in:                     1 mos
+    paths:
+    - artifacts/
+
+.determine_version:                &determine_version
+  - VERSION="$(sed -r -n '1,/^version/s/^version = "([^"]+)".*$/\1/p' Cargo.toml)"
+  - DATE_STR="$(date +%Y%m%d)"
+  - ID_SHORT="$(echo ${CI_COMMIT_SHA} | cut -c 1-7)"
+  - test "${CI_COMMIT_REF_NAME}" = "nightly" && VERSION="${VERSION}-${ID_SHORT}-${DATE_STR}"
+  - export VERSION
+  - echo "Version = ${VERSION}"
+
+test-linux:
+  stage:                           test
+  variables:
+    RUN_TESTS:                     cargo
   script:
-    - rustup default stable
-    # ARGUMENTS: 1. BUILD_PLATFORM (target for binaries) 2. PLATFORM (target for cargo) 3. ARC (architecture) 4. & 5. CC & CXX flags 6. binary identifier
-    - scripts/gitlab-build.sh x86_64-unknown-linux-gnu x86_64-unknown-linux-gnu amd64 gcc g++ linux
+    - scripts/gitlab/test-all.sh stable
   tags:
     - rust-stable
-  artifacts:
-    paths:
-    - parity.zip
-    name: "stable-x86_64-unknown-linux-gnu_parity"
-linux-i686:
-  stage: build
-  image: parity/rust-i686:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+
+build-linux:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-unknown-linux-gnu
   script:
-    - scripts/gitlab-build.sh i686-unknown-linux-gnu i686-unknown-linux-gnu i386 gcc g++ linux
-  tags:
-    - rust-i686
-  artifacts:
-    paths:
-      - parity.zip
-    name: "i686-unknown-linux-gnu"
-  allow_failure: true
-linux-armv7:
-  stage: build
-  image: parity/rust-armv7:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh armv7-unknown-linux-gnueabihf armv7-unknown-linux-gnueabihf armhf arm-linux-gnueabihf-gcc arm-linux-gnueabihf-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "armv7_unknown_linux_gnueabihf_parity"
-  allow_failure: true
-linux-armhf:
-  stage: build
-  image: parity/rust-arm:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh arm-unknown-linux-gnueabihf arm-unknown-linux-gnueabihf armhf arm-linux-gnueabihf-gcc arm-linux-gnueabihf-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "arm-unknown-linux-gnueabihf_parity"
-  allow_failure: true
-linux-aarch64:
-  stage: build
-  image: parity/rust-arm64:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh aarch64-unknown-linux-gnu aarch64-unknown-linux-gnu arm64 aarch64-linux-gnu-gcc aarch64-linux-gnu-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "aarch64-unknown-linux-gnu_parity"
-linux-snap:
-  stage: build
-  image: parity/snapcraft:gitlab-ci
-  only:
-    - stable
-    - beta
-    - tags
-    - triggers
-  script:
-    - scripts/gitlab-build.sh x86_64-unknown-snap-gnu x86_64-unknown-linux-gnu amd64 gcc g++ snap
+    - scripts/gitlab/build-unix.sh
+  <<:                              *collect_artifacts
   tags:
     - rust-stable
-  artifacts:
-    paths:
-    - parity.zip
-    name: "stable-x86_64-unknown-snap-gnu_parity"
-darwin:
-  stage: build
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+
+build-darwin:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-apple-darwin
+    CC:                            gcc
+    CXX:                           g++
   script:
-    - scripts/gitlab-build.sh x86_64-apple-darwin x86_64-apple-darwin macos gcc g++ macos
+    - scripts/gitlab/build-unix.sh
   tags:
-    - osx
-  artifacts:
-    paths:
-    - parity.zip
-    name: "x86_64-apple-darwin_parity"
-windows:
-  cache:
-    key: "%CI_BUILD_STAGE%-%CI_BUILD_REF_NAME%"
-    untracked: true
-  stage: build
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+    - rust-osx
+  <<:                              *collect_artifacts
+
+build-windows:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-pc-windows-msvc
   script:
-    - sh scripts/gitlab-build.sh x86_64-pc-windows-msvc x86_64-pc-windows-msvc amd64 "" "" windows
+    - sh scripts/gitlab/build-windows.sh
   tags:
    - rust-windows
-  artifacts:
-    paths:
-    - parity.zip
-    name: "x86_64-pc-windows-msvc_parity"
-android-armv7:
-  stage: build
-  image: parity/parity-android:latest
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - cargo build --target=armv7-linux-androideabi
+  <<:                              *collect_artifacts
+
+publish-docker:
+  stage:                           publish
+  only:                            *releaseable_branches
+  cache: {}
+  dependencies:
+    - build-linux
   tags:
-    - rust-arm
-  allow_failure: true
-  artifacts:
-    paths:
-    - parity.zip
-    name: "armv7-linux-androideabi_parity"
-docker-build:
-  stage: build
+    - shell
+  script:
+    - scripts/gitlab/publish-docker.sh parity
+
+publish-awss3:
+  stage:                           publish
+  only:                            *releaseable_branches
+  cache: {}
+  dependencies:
+    - build-linux
+    - build-darwin
+    - build-windows
+  before_script:                   *determine_version
+  script:
+    - scripts/gitlab/publish-awss3.sh
+  tags:
+    - shell
+
+docs-jsonrpc:
+  stage:                            optional
   only:
     - tags
-    - master
-    - beta
-    - stable
-    - triggers
-  before_script:
-    - docker info
+  except:
+    - nightly
+  cache: {}
   script:
-    - if [ "$CI_BUILD_REF_NAME" == "master" ]; then DOCKER_TAG="latest"; else DOCKER_TAG=$CI_BUILD_REF_NAME; fi
-    - echo "Tag:" $DOCKER_TAG
-    - docker login -u $Docker_Hub_User_Parity -p $Docker_Hub_Pass_Parity
-    - scripts/docker-build.sh $DOCKER_TAG
-    - docker logout
+    - scripts/gitlab/docs-jsonrpc.sh
   tags:
-    - docker
-test-coverage:
-  stage: test
-  only:
-    - master
+    - shell
+
+cargo-audit:
+  stage:                           optional
   script:
-    - scripts/gitlab-test.sh test-coverage
-  tags:
-    - kcov
-  allow_failure: true
-test-rust-stable:
-  stage: test
-  image: parity/rust:gitlab-ci
-  script:
-    - scripts/gitlab-test.sh stable
+    - scripts/gitlab/cargo-audit.sh
   tags:
     - rust-stable
-test-rust-beta:
-  stage: test
-  only:
-    - triggers
-    - master
-  image: parity/rust:gitlab-ci
+
+test-android:
+  stage:                           optional
+  image:                           parity/rust-android:gitlab-ci
+  variables:
+    CARGO_TARGET:                  armv7-linux-androideabi
   script:
-    - scripts/gitlab-test.sh beta
+    - scripts/gitlab/test-all.sh stable
+  tags:
+    - rust-arm
+
+test-darwin:
+  stage:                           optional
+  variables:
+    CARGO_TARGET:                  x86_64-apple-darwin
+    CC:                            gcc
+    CXX:                           g++
+    RUN_TESTS:                     cargo
+  script:
+    - scripts/gitlab/test-all.sh stable
+  tags:
+    - rust-osx
+
+test-windows:
+  stage:                           optional
+  variables:
+    CARGO_TARGET:                  x86_64-pc-windows-msvc
+    RUN_TESTS:                     cargo
+  script:
+    - sh scripts/gitlab/test-all.sh stable
+  tags:
+   - rust-windows
+
+test-beta:
+  stage:                           optional
+  variables:
+    RUN_TESTS:                     cargo
+  script:
+    - scripts/gitlab/test-all.sh beta
   tags:
     - rust-beta
-  allow_failure: true
-test-rust-nightly:
-  stage: test
-  only:
-    - triggers
-    - master
-  image: parity/rust:gitlab-ci
+
+test-nightly:
+  stage:                           optional
+  variables:
+    RUN_TESTS:                     all
   script:
-    - scripts/gitlab-test.sh nightly
+    - scripts/gitlab/test-all.sh nightly
   tags:
-    - rust
     - rust-nightly
-  allow_failure: true
-push-release:
-  stage: push-release
-  only:
-    - tags
-    - triggers
-  image: parity/rust:gitlab-ci
-  script:
-    - scripts/gitlab-push-release.sh
-  tags:
-    - curl

Cargo.toml

@@ -2,7 +2,7 @@
 description = "Parity Ethereum client"
 name = "parity-ethereum"
 # NOTE Make sure to update util/version/Cargo.toml as well
-version = "2.0.0"
+version = "2.0.9"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 
@@ -32,7 +32,7 @@ futures-cpupool = "0.1"
 fdlimit = "0.1"
 ctrlc = { git = "https://github.com/paritytech/rust-ctrlc.git" }
 jsonrpc-core = { git = "https://github.com/paritytech/jsonrpc.git", branch = "parity-1.11" }
-ethcore = { path = "ethcore", features = ["work-notify", "price-info", "stratum"] }
+ethcore = { path = "ethcore", features = ["parity"] }
 parity-bytes = { git = "https://github.com/paritytech/parity-common" }
 ethcore-io = { path = "util/io" }
 ethcore-light = { path = "ethcore/light" }
@@ -46,7 +46,6 @@ ethcore-transaction = { path = "ethcore/transaction" }
 ethereum-types = "0.3"
 node-filter = { path = "ethcore/node_filter" }
 ethkey = { path = "ethkey" }
-node-health = { path = "node-health" }
 rlp = { git = "https://github.com/paritytech/parity-common" }
 rpc-cli = { path = "rpc_cli" }
 parity-hash-fetch = { path = "hash-fetch" }
@@ -88,7 +87,9 @@ winapi = { version = "0.3.4", features = ["winsock2", "winuser", "shellapi"] }
 daemonize = { git = "https://github.com/paritytech/daemonize" }
 
 [features]
+miner-debug = ["ethcore/miner-debug"]
 json-tests = ["ethcore/json-tests"]
+ci-skip-issue = ["ethcore/ci-skip-issue"]
 test-heavy = ["ethcore/test-heavy"]
 evm-debug = ["ethcore/evm-debug"]
 evm-debug-tests = ["ethcore/evm-debug-tests"]

README.md

@@ -1,111 +1,75 @@
-# Parity - fast, light, and robust Ethereum client
+![Parity Ethereum](docs/logo-parity-ethereum.svg)
 
-## [» Download the latest release «](https://github.com/paritytech/parity/releases/latest)
+## The fastest and most advanced Ethereum client.
 
-[![build status](https://gitlab.parity.io/parity/parity/badges/master/build.svg)](https://gitlab.parity.io/parity/parity/commits/master)
-[![codecov](https://codecov.io/gh/paritytech/parity/branch/master/graph/badge.svg)](https://codecov.io/gh/paritytech/parity)
-[![Snap Status](https://build.snapcraft.io/badge/paritytech/parity.svg)](https://build.snapcraft.io/user/paritytech/parity)
-[![GPLv3](https://img.shields.io/badge/license-GPL%20v3-green.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html)
+<p align="center"><strong><a href="https://github.com/paritytech/parity-ethereum/releases/latest">» Download the latest release «</a></strong></p>
 
+<p align="center"><a href="https://gitlab.parity.io/parity/parity-ethereum/commits/master" target="_blank"><img src="https://gitlab.parity.io/parity/parity-ethereum/badges/master/build.svg" /></a>
+<a href="https://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank"><img src="https://img.shields.io/badge/license-GPL%20v3-green.svg" /></a></p>
 
-### Join the chat!
+**Built for mission-critical use**: Miners, service providers, and exchanges need fast synchronisation and maximum uptime. Parity Ethereum provides the core infrastructure essential for speedy and reliable services.
 
-Get in touch with us on Gitter:
-[![Gitter: Parity](https://img.shields.io/badge/gitter-parity-4AB495.svg)](https://gitter.im/paritytech/parity)
-[![Gitter: Parity.js](https://img.shields.io/badge/gitter-parity.js-4AB495.svg)](https://gitter.im/paritytech/parity.js)
-[![Gitter: Parity/Miners](https://img.shields.io/badge/gitter-parity/miners-4AB495.svg)](https://gitter.im/paritytech/parity/miners)
-[![Gitter: Parity-PoA](https://img.shields.io/badge/gitter-parity--poa-4AB495.svg)](https://gitter.im/paritytech/parity-poa)
+- Clean, modular codebase for easy customisation
+- Advanced CLI-based client
+- Minimal memory and storage footprint
+- Synchronise in hours, not days with Warp Sync
+- Modular for light integration into your service or product
 
-Or join our community on Matrix:
-[![Riot: +Parity](https://img.shields.io/badge/riot-%2Bparity%3Amatrix.parity.io-orange.svg)](https://riot.im/app/#/group/+parity:matrix.parity.io)
+## Technical Overview
 
-Official website: https://parity.io | Be sure to check out [our wiki](https://wiki.parity.io) for more information.
+Parity Ethereum's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity Ethereum using the sophisticated and cutting-edge **Rust programming language**. Parity Ethereum is licensed under the GPLv3 and can be used for all your Ethereum needs.
 
-----
+By default, Parity Ethereum runs a JSON-RPC HTTP server on port `:8545` and a Web-Sockets server on port `:8546`. This is fully configurable and supports a number of APIs.
 
-## About Parity
+If you run into problems while using Parity Ethereum, check out the [wiki for documentation](https://wiki.parity.io/), feel free to [file an issue in this repository](https://github.com/paritytech/parity-ethereum/issues/new), or hop on our [Gitter](https://gitter.im/paritytech/parity) or [Riot](https://riot.im/app/#/group/+parity:matrix.parity.io) chat room to ask a question. We are glad to help! **For security-critical issues**, please refer to the security policy outlined in [SECURITY.md](SECURITY.md).
 
-Parity's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity using the sophisticated and cutting-edge Rust programming language. Parity is licensed under the GPLv3, and can be used for all your Ethereum needs.
+Parity Ethereum's current beta-release is 2.1. You can download it at [the releases page](https://github.com/paritytech/parity-ethereum/releases) or follow the instructions below to build from source. Please, mind the [CHANGELOG.md](CHANGELOG.md) for a list of all changes between different versions.
 
-From Parity Ethereum client version 1.10.0, the User Interface (UI) is accessible in a separate application called Parity UI. To keep using the UI in the browser (deprecated), [follow these steps](https://wiki.parity.io/FAQ-Basic-Operations,-Configuration,-and-Synchronization#the-parity-ui-application-isnt-working-the-way-i-want).
+## Build Dependencies
 
-By default, Parity will also run a JSONRPC server on `127.0.0.1:8545` and a websockets server on `127.0.0.1:8546`. This is fully configurable and supports a number of APIs.
+Parity Ethereum requires **Rust version 1.29.x** to build.
 
-If you run into an issue while using Parity, feel free to file one in this repository or hop on our [Gitter](https://gitter.im/paritytech/parity) or [Riot](https://riot.im/app/#/group/+parity:matrix.parity.io) chat room to ask a question. We are glad to help! **For security-critical issues**, please refer to the security policy outlined in [SECURITY.MD](SECURITY.md).
-
-Parity's current beta-release is 1.11. You can download it at https://github.com/paritytech/parity/releases or follow the instructions below to build from source.
-
-----
-
-## Build dependencies
-
-**Parity requires Rust version 1.26.0 to build**
-
-We recommend installing Rust through [rustup](https://www.rustup.rs/). If you don't already have rustup, you can install it like this:
+We recommend installing Rust through [rustup](https://www.rustup.rs/). If you don't already have `rustup`, you can install it like this:
 
 - Linux:
-	```bash
-	$ curl https://sh.rustup.rs -sSf | sh
-	```
-
-	Parity also requires `gcc`, `g++`, `libssl-dev`/`openssl`, `libudev-dev`, `pkg-config`, `file` and `make` packages to be installed.
-
-- OSX:
-	```bash
-	$ curl https://sh.rustup.rs -sSf | sh
-	```
-
-	`clang` is required. It comes with Xcode command line tools or can be installed with homebrew.
-
-- Windows
-  Make sure you have Visual Studio 2015 with C++ support installed. Next, download and run the rustup installer from
-	https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe, start "VS2015 x64 Native Tools Command Prompt", and use the following command to install and set up the msvc toolchain:
   ```bash
-	$ rustup default stable-x86_64-pc-windows-msvc
+  $ curl https://sh.rustup.rs -sSf | sh
   ```
 
-Once you have rustup installed, then you need to install:
+  Parity Ethereum also requires `gcc`, `g++`, `libudev-dev`, `pkg-config`, `file`, `make`, and `cmake` packages to be installed.
+
+- OSX:
+  ```bash
+  $ curl https://sh.rustup.rs -sSf | sh
+  ```
+
+  `clang` is required. It comes with Xcode command line tools or can be installed with homebrew.
+
+- Windows
+  Make sure you have Visual Studio 2015 with C++ support installed. Next, download and run the `rustup` installer from
+  https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe, start "VS2015 x64 Native Tools Command Prompt", and use the following command to install and set up the `msvc` toolchain:
+  ```bash
+  $ rustup default stable-x86_64-pc-windows-msvc
+  ```
+
+Once you have `rustup` installed, then you need to install:
 * [Perl](https://www.perl.org)
-* [Yasm](http://yasm.tortall.net)
+* [Yasm](https://yasm.tortall.net)
 
-Make sure that these binaries are in your `PATH`. After that you should be able to build parity from source.
+Make sure that these binaries are in your `PATH`. After that, you should be able to build Parity Ethereum from source.
 
-----
-
-## Install from the snap store
-
-In any of the [supported Linux distros](https://snapcraft.io/docs/core/install):
+## Build from Source Code
 
 ```bash
-sudo snap install parity
-```
-
-Or, if you want to contribute testing the upcoming release:
-
-```bash
-sudo snap install parity --beta
-```
-
-And to test the latest code landed into the master branch:
-
-```bash
-sudo snap install parity --edge
-```
-
-----
-
-## Build from source
-
-```bash
-# download Parity code
-$ git clone https://github.com/paritytech/parity
-$ cd parity
+# download Parity Ethereum code
+$ git clone https://github.com/paritytech/parity-ethereum
+$ cd parity-ethereum
 
 # build in release mode
-$ cargo build --release
+$ cargo build --release --features final
 ```
 
-This will produce an executable in the `./target/release` subdirectory.
+This produces an executable in the `./target/release` subdirectory.
 
 Note: if cargo fails to parse manifest try:
 
@@ -119,7 +83,7 @@ Note, when compiling a crate and you receive errors, it's in most cases your out
 $ cargo clean
 ```
 
-This will always compile the latest nightly builds. If you want to build stable or beta, do a
+This always compiles the latest nightly builds. If you want to build stable or beta, do a
 
 ```bash
 $ git checkout stable
@@ -131,11 +95,7 @@ or
 $ git checkout beta
 ```
 
-first.
-
-----
-
-## Simple one-line installer for Mac and Ubuntu
+## Simple One-Line Installer for Mac and Linux
 
 ```bash
 bash <(curl https://get.parity.io -L)
@@ -147,22 +107,49 @@ The one-line installer always defaults to the latest beta release. To install a
 bash <(curl https://get.parity.io -L) -r stable
 ```
 
-## Start Parity
+## Start Parity Ethereum
 
 ### Manually
 
-To start Parity manually, just run
+To start Parity Ethereum manually, just run
 
 ```bash
 $ ./target/release/parity
 ```
 
-and Parity will begin syncing the Ethereum blockchain.
+so Parity Ethereum begins syncing the Ethereum blockchain.
 
-### Using systemd service file
+### Using `systemd` service file
 
-To start Parity as a regular user using systemd init:
+To start Parity Ethereum as a regular user using `systemd` init:
 
 1. Copy `./scripts/parity.service` to your
-systemd user directory (usually `~/.config/systemd/user`).
-2. To configure Parity, write a `/etc/parity/config.toml` config file, see [Configuring Parity](https://paritytech.github.io/wiki/Configuring-Parity) for details.
+`systemd` user directory (usually `~/.config/systemd/user`).
+2. To configure Parity Ethereum, write a `/etc/parity/config.toml` config file, see [Configuring Parity Ethereum](https://paritytech.github.io/wiki/Configuring-Parity) for details.
+
+## Parity Ethereum toolchain
+
+In addition to the Parity Ethereum client, there are additional tools in this repository available:
+
+- [evmbin](https://github.com/paritytech/parity-ethereum/blob/master/evmbin/) - EVM implementation for Parity Ethereum.
+- [ethabi](https://github.com/paritytech/ethabi) - Parity Ethereum function calls encoding.
+- [ethstore](https://github.com/paritytech/parity-ethereum/blob/master/ethstore/) - Parity Ethereum key management.
+- [ethkey](https://github.com/paritytech/parity-ethereum/blob/master/ethkey/) - Parity Ethereum keys generator.
+- [whisper](https://github.com/paritytech/parity-ethereum/blob/master/whisper/) - Implementation of Whisper-v2 PoC.
+
+## Join the chat!
+
+Questions? Get in touch with us on Gitter:
+[![Gitter: Parity](https://img.shields.io/badge/gitter-parity-4AB495.svg)](https://gitter.im/paritytech/parity)
+[![Gitter: Parity.js](https://img.shields.io/badge/gitter-parity.js-4AB495.svg)](https://gitter.im/paritytech/parity.js)
+[![Gitter: Parity/Miners](https://img.shields.io/badge/gitter-parity/miners-4AB495.svg)](https://gitter.im/paritytech/parity/miners)
+[![Gitter: Parity-PoA](https://img.shields.io/badge/gitter-parity--poa-4AB495.svg)](https://gitter.im/paritytech/parity-poa)
+
+Alternatively, join our community on Matrix:
+[![Riot: +Parity](https://img.shields.io/badge/riot-%2Bparity%3Amatrix.parity.io-orange.svg)](https://riot.im/app/#/group/+parity:matrix.parity.io)
+
+## Documentation
+
+Official website: https://parity.io
+
+Be sure to [check out our wiki](https://wiki.parity.io) for more information.

docker/README.md

@@ -1,3 +0,0 @@
-Usage
-
-```docker build -f docker/ubuntu/Dockerfile --tag ethcore/parity:branch_or_tag_name .```

docker/alpine/Dockerfile

@@ -1,29 +0,0 @@
-FROM alpine:edge
-
-WORKDIR /build
-
-# install tools and dependencies
-RUN apk add --no-cache gcc musl-dev pkgconfig g++ make curl \
-						eudev-dev rust cargo git file binutils \
-						libusb-dev linux-headers perl
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity && \
-	cargo build --release --verbose && \
-	ls /build/parity/target/release/parity && \
-	strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]

docker/android/Dockerfile

@@ -1,79 +0,0 @@
-FROM ubuntu:xenial
-LABEL maintainer="Parity Technologies <devops@parity.io>"
-
-RUN apt-get update && \
-    apt-get install -yq sudo curl file build-essential wget git g++ cmake pkg-config bison flex \
-                        unzip lib32stdc++6 lib32z1 python autotools-dev automake autoconf libtool \
-                        gperf xsltproc docbook-xsl
-
-# Rust & Cargo
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
-ENV PATH /root/.cargo/bin:$PATH
-RUN rustup toolchain install stable
-RUN rustup target add --toolchain stable arm-linux-androideabi
-RUN rustup target add --toolchain stable armv7-linux-androideabi
-
-# Android NDK and toolchain
-RUN cd /usr/local && \
-    wget -q https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip && \
-    unzip -q android-ndk-r16b-linux-x86_64.zip && \
-    rm android-ndk-r16b-linux-x86_64.zip
-ENV NDK_HOME /usr/local/android-ndk-r16b
-RUN /usr/local/android-ndk-r16b/build/tools/make-standalone-toolchain.sh \
-    --arch=arm --install-dir=/opt/ndk-standalone --stl=libc++ --platform=android-26
-ENV PATH $PATH:/opt/ndk-standalone/bin
-
-# Compiling OpenSSL for Android
-RUN cd /root && \
-    git clone git://git.openssl.org/openssl.git && \
-    cd openssl && \
-    git checkout OpenSSL_1_1_0-stable
-ENV CROSS_SYSROOT /opt/ndk-standalone/sysroot
-RUN cd /root/openssl && \
-    ./Configure android-armeabi --cross-compile-prefix=arm-linux-androideabi- \
-    -static no-stdio no-ui \
-    -I/usr/local/android-ndk-r16b/sysroot/usr/include \
-    -I/usr/local/android-ndk-r16b/sysroot/usr/include/arm-linux-androideabi \
-    -L/usr/local/android-ndk-r16b/sysroot/usr/lib \
-    --prefix=/opt/ndk-standalone/sysroot/usr
-RUN cd /root/openssl && \
-    make build_libs && \
-    make install_dev
-RUN rm -rf /root/openssl
-
-# Compiling libudev for Android
-# This is the most hacky part of the process, as we need to apply a patch and pass specific
-# options that the compiler environment doesn't define.
-RUN cd /root && \
-    git clone https://github.com/gentoo/eudev.git
-ADD libudev.patch /root
-RUN cd /root/eudev && \
-    git checkout 83d918449f22720d84a341a05e24b6d109e6d3ae && \
-    ./autogen.sh && \
-    ./configure --disable-introspection --disable-programs --disable-hwdb \
-                --host=arm-linux-androideabi --prefix=/opt/ndk-standalone/sysroot/usr/ \
-                --enable-shared=false CC=arm-linux-androideabi-clang \
-                CFLAGS="-D LINE_MAX=2048 -D RLIMIT_NLIMITS=15 -D IPTOS_LOWCOST=2 -std=gnu99" \
-                CXX=arm-linux-androideabi-clang++ && \
-    git apply - < /root/libudev.patch && \
-    make && \
-    make install
-RUN rm -rf /root/eudev
-RUN rm /root/libudev.patch
-
-# Rust-related configuration
-ADD cargo-config.toml /root/.cargo/config
-ENV ARM_LINUX_ANDROIDEABI_OPENSSL_DIR /opt/ndk-standalone/sysroot/usr
-ENV ARMV7_LINUX_ANDROIDEABI_OPENSSL_DIR /opt/ndk-standalone/sysroot/usr
-ENV CC_arm_linux_androideabi arm-linux-androideabi-clang
-ENV CC_armv7_linux_androideabi arm-linux-androideabi-clang
-ENV CXX_arm_linux_androideabi arm-linux-androideabi-clang++
-ENV CXX_armv7_linux_androideabi arm-linux-androideabi-clang++
-ENV AR_arm_linux_androideabi arm-linux-androideabi-ar
-ENV AR_armv7_linux_androideabi arm-linux-androideabi-ar
-ENV CFLAGS_arm_linux_androideabi -std=gnu11 -fPIC -D OS_ANDROID
-ENV CFLAGS_armv7_linux_androideabi -std=gnu11 -fPIC -D OS_ANDROID
-ENV CXXFLAGS_arm_linux_androideabi -std=gnu++11 -fPIC -fexceptions -frtti -static-libstdc++ -D OS_ANDROID
-ENV CXXFLAGS_armv7_linux_androideabi -std=gnu++11 -fPIC -fexceptions -frtti -static-libstdc++ -D OS_ANDROID
-ENV CXXSTDLIB_arm_linux_androideabi ""
-ENV CXXSTDLIB_armv7_linux_androideabi ""

docker/android/cargo-config.toml

@@ -1,9 +0,0 @@
-[target.armv7-linux-androideabi]
-linker = "arm-linux-androideabi-clang"
-ar = "arm-linux-androideabi-ar"
-rustflags = ["-C", "link-arg=-lc++_static", "-C", "link-arg=-lc++abi", "-C", "link-arg=-landroid_support"]
-
-[target.arm-linux-androideabi]
-linker = "arm-linux-androideabi-clang"
-ar = "arm-linux-androideabi-ar"
-rustflags = ["-C", "link-arg=-lc++_static", "-C", "link-arg=-lc++abi", "-C", "link-arg=-landroid_support"]

docker/android/libudev.patch

@@ -1,216 +0,0 @@
-diff --git a/src/collect/collect.c b/src/collect/collect.c
-index 2cf1f00..b24f26b 100644
---- a/src/collect/collect.c
-+++ b/src/collect/collect.c
-@@ -84,7 +84,7 @@ static void usage(void)
-                "  invoked for each ID in <idlist>) collect returns 0, the\n"
-                "  number of missing IDs otherwise.\n"
-                "  On error a negative number is returned.\n\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- /*
-diff --git a/src/scsi_id/scsi_id.c b/src/scsi_id/scsi_id.c
-index 8b76d87..7bf3948 100644
---- a/src/scsi_id/scsi_id.c
-+++ b/src/scsi_id/scsi_id.c
-@@ -321,7 +321,7 @@ static void help(void) {
-                "  -u --replace-whitespace          Replace all whitespace by underscores\n"
-                "  -v --verbose                     Verbose logging\n"
-                "  -x --export                      Print values as environment keys\n"
--               , program_invocation_short_name);
-+               , "parity");
- 
- }
- 
-diff --git a/src/shared/hashmap.h b/src/shared/hashmap.h
-index a03ee58..a7c2005 100644
---- a/src/shared/hashmap.h
-+++ b/src/shared/hashmap.h
-@@ -98,10 +98,7 @@ extern const struct hash_ops uint64_hash_ops;
- #if SIZEOF_DEV_T != 8
- unsigned long devt_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) _pure_;
- int devt_compare_func(const void *a, const void *b) _pure_;
--extern const struct hash_ops devt_hash_ops = {
--        .hash = devt_hash_func,
--        .compare = devt_compare_func
--};
-+extern const struct hash_ops devt_hash_ops;
- #else
- #define devt_hash_func uint64_hash_func
- #define devt_compare_func uint64_compare_func
-diff --git a/src/shared/log.c b/src/shared/log.c
-index 4a40996..1496984 100644
---- a/src/shared/log.c
-+++ b/src/shared/log.c
-@@ -335,7 +335,7 @@ static int write_to_syslog(
- 
-         IOVEC_SET_STRING(iovec[0], header_priority);
-         IOVEC_SET_STRING(iovec[1], header_time);
--        IOVEC_SET_STRING(iovec[2], program_invocation_short_name);
-+        IOVEC_SET_STRING(iovec[2], "parity");
-         IOVEC_SET_STRING(iovec[3], header_pid);
-         IOVEC_SET_STRING(iovec[4], buffer);
- 
-@@ -383,7 +383,7 @@ static int write_to_kmsg(
-         char_array_0(header_pid);
- 
-         IOVEC_SET_STRING(iovec[0], header_priority);
--        IOVEC_SET_STRING(iovec[1], program_invocation_short_name);
-+        IOVEC_SET_STRING(iovec[1], "parity");
-         IOVEC_SET_STRING(iovec[2], header_pid);
-         IOVEC_SET_STRING(iovec[3], buffer);
-         IOVEC_SET_STRING(iovec[4], "\n");
-diff --git a/src/udev/udevadm-control.c b/src/udev/udevadm-control.c
-index 6af7163..3271e56 100644
---- a/src/udev/udevadm-control.c
-+++ b/src/udev/udevadm-control.c
-@@ -41,7 +41,7 @@ static void print_help(void) {
-                "  -p --property=KEY=VALUE  Set a global property for all events\n"
-                "  -m --children-max=N      Maximum number of children\n"
-                "     --timeout=SECONDS     Maximum time to block for a reply\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_control(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-info.c b/src/udev/udevadm-info.c
-index 0aec976..a31ac02 100644
---- a/src/udev/udevadm-info.c
-+++ b/src/udev/udevadm-info.c
-@@ -279,7 +279,7 @@ static void help(void) {
-                "  -P --export-prefix          Export the key name with a prefix\n"
-                "  -e --export-db              Export the content of the udev database\n"
-                "  -c --cleanup-db             Clean up the udev database\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int uinfo(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-monitor.c b/src/udev/udevadm-monitor.c
-index 15ded09..b58dd08 100644
---- a/src/udev/udevadm-monitor.c
-+++ b/src/udev/udevadm-monitor.c
-@@ -73,7 +73,7 @@ static void help(void) {
-                "  -u --udev                                Print udev events\n"
-                "  -s --subsystem-match=SUBSYSTEM[/DEVTYPE] Filter events by subsystem\n"
-                "  -t --tag-match=TAG                       Filter events by tag\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_monitor(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-settle.c b/src/udev/udevadm-settle.c
-index 33597bc..b36a504 100644
---- a/src/udev/udevadm-settle.c
-+++ b/src/udev/udevadm-settle.c
-@@ -43,7 +43,7 @@ static void help(void) {
-                "     --version              Show package version\n"
-                "  -t --timeout=SECONDS      Maximum time to wait for events\n"
-                "  -E --exit-if-exists=FILE  Stop waiting if file exists\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_settle(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-test-builtin.c b/src/udev/udevadm-test-builtin.c
-index baaeca9..50ed812 100644
---- a/src/udev/udevadm-test-builtin.c
-+++ b/src/udev/udevadm-test-builtin.c
-@@ -39,7 +39,7 @@ static void help(struct udev *udev) {
-                "  -h --help     Print this message\n"
-                "     --version  Print version of the program\n\n"
-                "Commands:\n"
--               , program_invocation_short_name);
-+               , "parity");
- 
-         udev_builtin_list(udev);
- }
-diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
-index 47fd924..a855412 100644
---- a/src/udev/udevadm-test.c
-+++ b/src/udev/udevadm-test.c
-@@ -39,7 +39,7 @@ static void help(void) {
-                "     --version                         Show package version\n"
-                "  -a --action=ACTION                   Set action string\n"
-                "  -N --resolve-names=early|late|never  When to resolve names\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_test(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
-index 4dc756a..67787d3 100644
---- a/src/udev/udevadm-trigger.c
-+++ b/src/udev/udevadm-trigger.c
-@@ -92,7 +92,7 @@ static void help(void) {
-                "  -y --sysname-match=NAME           Trigger devices with this /sys path\n"
-                "     --name-match=NAME              Trigger devices with this /dev name\n"
-                "  -b --parent-match=NAME            Trigger devices with that parent device\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_trigger(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm.c b/src/udev/udevadm.c
-index 3e57cf6..b03dfaa 100644
---- a/src/udev/udevadm.c
-+++ b/src/udev/udevadm.c
-@@ -62,7 +62,7 @@ static int adm_help(struct udev *udev, int argc, char *argv[]) {
-         printf("%s [--help] [--version] [--debug] COMMAND [COMMAND OPTIONS]\n\n"
-                "Send control commands or test the device manager.\n\n"
-                "Commands:\n"
--               , program_invocation_short_name);
-+               , "parity");
- 
-         for (i = 0; i < ELEMENTSOF(udevadm_cmds); i++)
-                 if (udevadm_cmds[i]->help != NULL)
-@@ -128,7 +128,7 @@ int main(int argc, char *argv[]) {
-                                 goto out;
-                         }
- 
--        fprintf(stderr, "%s: missing or unknown command\n", program_invocation_short_name);
-+        fprintf(stderr, "%s: missing or unknown command\n", "parity");
-         rc = 2;
- out:
-         mac_selinux_finish();
-diff --git a/src/udev/udevd.c b/src/udev/udevd.c
-index cf826c6..4eec0af 100644
---- a/src/udev/udevd.c
-+++ b/src/udev/udevd.c
-@@ -1041,7 +1041,7 @@ static void help(void) {
-                "  -t --event-timeout=SECONDS  Seconds to wait before terminating an event\n"
-                "  -N --resolve-names=early|late|never\n"
-                "                              When to resolve users and groups\n"
--               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int parse_argv(int argc, char *argv[]) {
-diff --git a/src/v4l_id/v4l_id.c b/src/v4l_id/v4l_id.c
-index 1dce0d5..f65badf 100644
---- a/src/v4l_id/v4l_id.c
-+++ b/src/v4l_id/v4l_id.c
-@@ -49,7 +49,7 @@ int main(int argc, char *argv[]) {
-                         printf("%s [-h,--help] <device file>\n\n"
-                                "Video4Linux device identification.\n\n"
-                                "  -h  Print this message\n"
--                               , program_invocation_short_name);
-+                               , "parity");
-                         return 0;
-                 case '?':
-                         return -EINVAL;
-diff --git a/src/shared/path-util.c b/src/shared/path-util.c
-index 0744563..7151356 100644
---- a/src/shared/path-util.c
-+++ b/src/shared/path-util.c
-@@ -109,7 +109,7 @@ char *path_make_absolute_cwd(const char *p) {
-         if (path_is_absolute(p))
-                 return strdup(p);
- 
--        cwd = get_current_dir_name();
-+        cwd = getcwd(malloc(128), 128);
-         if (!cwd)
-                 return NULL;
- 

docker/centos/Dockerfile

@@ -1,36 +0,0 @@
-FROM centos:latest
-WORKDIR /build
-
-# install tools and dependencies
-RUN yum -y update&& \
-    yum install -y git make gcc-c++ gcc file binutils
-
-# install rustup
-RUN curl -sSf https://static.rust-lang.org/rustup.sh -o rustup.sh &&\
-ls&&\
- sh rustup.sh --disable-sudo
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# set compiler
-ENV CXX g++
-ENV CC gcc
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity&&\
-    cargo build --release --verbose && \
-	ls /build/parity/target/release/parity &&	\
-	strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]

docker/hub/Dockerfile

@@ -1,66 +0,0 @@
-FROM ubuntu:14.04
-MAINTAINER Parity Technologies <devops@parity.io>
-WORKDIR /build
-#ENV for build TAG
-ARG BUILD_TAG
-ENV BUILD_TAG ${BUILD_TAG:-master}
-RUN echo "Build tag:" $BUILD_TAG
-# install tools and dependencies
-RUN apt-get update && \
-        apt-get install -y --force-yes --no-install-recommends \
-        # make
-        build-essential \
-        # add-apt-repository
-        software-properties-common \
-        make \
-        curl \
-        wget \
-        git \
-        g++ \
-        gcc \
-        libc6 \
-        libc6-dev \
-        binutils \
-        file \
-        openssl \
-        libssl-dev \
-        libudev-dev \
-        pkg-config \
-        dpkg-dev \
-        libudev-dev &&\
-# install rustup
- curl https://sh.rustup.rs -sSf | sh -s -- -y && \
-# rustup directory
- PATH=/root/.cargo/bin:$PATH && \
-# show backtraces
- RUST_BACKTRACE=1 && \
-# build parity
-cd /build&&git clone https://github.com/paritytech/parity && \
-        cd parity && \
-	git pull&& \
-	git checkout $BUILD_TAG && \
-        cargo build --verbose --release --features final && \
-        #ls /build/parity/target/release/parity && \
-        strip /build/parity/target/release/parity && \
- file /build/parity/target/release/parity&&mkdir -p /parity&& cp /build/parity/target/release/parity /parity&&\
-#cleanup Docker image
- rm -rf /root/.cargo&&rm -rf /root/.multirust&&rm -rf /root/.rustup&&rm -rf /build&&\
- apt-get purge -y  \
-        # make
-        build-essential \
-        # add-apt-repository
-        software-properties-common \
-        make \
-        curl \
-        wget \
-        git \
-        g++ \
-        gcc \
-        binutils \
-        file \
-        pkg-config \
-        dpkg-dev &&\
- rm -rf /var/lib/apt/lists/*
-# setup ENTRYPOINT
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/parity/parity"]

docker/ubuntu/Dockerfile

@@ -1,42 +0,0 @@
-FROM ubuntu:14.04
-WORKDIR /build
-
-# install tools and dependencies
-RUN apt-get update && \
-        apt-get install -y \
-        g++ \
-        build-essential \
-        curl \
-        git \
-        file \
-        binutils \
-        libssl-dev \
-        pkg-config \
-        libudev-dev
-
-# install rustup
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
-
-# rustup directory
-ENV PATH /root/.cargo/bin:$PATH
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity && \
-        cargo build --release --verbose && \
-        ls /build/parity/target/release/parity && \
-        strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]

ethash/Cargo.toml

@@ -6,13 +6,14 @@ authors = ["Parity Technologies <admin@parity.io>"]
 [lib]
 
 [dependencies]
-log = "0.3"
-keccak-hash = { git = "https://github.com/paritytech/parity-common" }
-primal = "0.2.3"
-parking_lot = "0.6"
 crunchy = "0.1.0"
-memmap = "0.6"
 either = "1.0.0"
+ethereum-types = "0.3"
+keccak-hash = { git = "https://github.com/paritytech/parity-common" }
+log = "0.4"
+memmap = "0.6"
+parking_lot = "0.6"
+primal = "0.2.3"
 
 [dev-dependencies]
 tempdir = "0.3"

ethash/src/lib.rs

@@ -16,10 +16,11 @@
 
 #![cfg_attr(feature = "benches", feature(test))]
 
-extern crate primal;
-extern crate parking_lot;
 extern crate either;
+extern crate ethereum_types;
 extern crate memmap;
+extern crate parking_lot;
+extern crate primal;
 
 #[macro_use]
 extern crate crunchy;
@@ -38,6 +39,7 @@ mod shared;
 pub use cache::{NodeCacheBuilder, OptimizeFor};
 pub use compute::{ProofOfWork, quick_get_difficulty, slow_hash_block_number};
 use compute::Light;
+use ethereum_types::{U256, U512};
 use keccak::H256;
 use parking_lot::Mutex;
 pub use seed_compute::SeedHashCompute;
@@ -136,6 +138,29 @@ impl EthashManager {
 	}
 }
 
+/// Convert an Ethash boundary to its original difficulty. Basically just `f(x) = 2^256 / x`.
+pub fn boundary_to_difficulty(boundary: &ethereum_types::H256) -> U256 {
+	difficulty_to_boundary_aux(&**boundary)
+}
+
+/// Convert an Ethash difficulty to the target boundary. Basically just `f(x) = 2^256 / x`.
+pub fn difficulty_to_boundary(difficulty: &U256) -> ethereum_types::H256 {
+	difficulty_to_boundary_aux(difficulty).into()
+}
+
+fn difficulty_to_boundary_aux<T: Into<U512>>(difficulty: T) -> ethereum_types::U256 {
+	let difficulty = difficulty.into();
+
+	assert!(!difficulty.is_zero());
+
+	if difficulty == U512::one() {
+		U256::max_value()
+	} else {
+		// difficulty > 1, so result should never overflow 256 bits
+		U256::from((U512::one() << 256) / difficulty)
+	}
+}
+
 #[test]
 fn test_lru() {
 	use tempdir::TempDir;
@@ -155,6 +180,43 @@ fn test_lru() {
 	assert_eq!(ethash.cache.lock().prev_epoch.unwrap(), 0);
 }
 
+#[test]
+fn test_difficulty_to_boundary() {
+	use ethereum_types::H256;
+	use std::str::FromStr;
+
+	assert_eq!(difficulty_to_boundary(&U256::from(1)), H256::from(U256::max_value()));
+	assert_eq!(difficulty_to_boundary(&U256::from(2)), H256::from_str("8000000000000000000000000000000000000000000000000000000000000000").unwrap());
+	assert_eq!(difficulty_to_boundary(&U256::from(4)), H256::from_str("4000000000000000000000000000000000000000000000000000000000000000").unwrap());
+	assert_eq!(difficulty_to_boundary(&U256::from(32)), H256::from_str("0800000000000000000000000000000000000000000000000000000000000000").unwrap());
+}
+
+#[test]
+fn test_difficulty_to_boundary_regression() {
+	use ethereum_types::H256;
+
+	// the last bit was originally being truncated when performing the conversion
+	// https://github.com/paritytech/parity-ethereum/issues/8397
+	for difficulty in 1..9 {
+		assert_eq!(U256::from(difficulty), boundary_to_difficulty(&difficulty_to_boundary(&difficulty.into())));
+		assert_eq!(H256::from(difficulty), difficulty_to_boundary(&boundary_to_difficulty(&difficulty.into())));
+		assert_eq!(U256::from(difficulty), boundary_to_difficulty(&boundary_to_difficulty(&difficulty.into()).into()));
+		assert_eq!(H256::from(difficulty), difficulty_to_boundary(&difficulty_to_boundary(&difficulty.into()).into()));
+	}
+}
+
+#[test]
+#[should_panic]
+fn test_difficulty_to_boundary_panics_on_zero() {
+	difficulty_to_boundary(&U256::from(0));
+}
+
+#[test]
+#[should_panic]
+fn test_boundary_to_difficulty_panics_on_zero() {
+	boundary_to_difficulty(&ethereum_types::H256::from(0));
+}
+
 #[cfg(feature = "benches")]
 mod benchmarks {
 	extern crate test;

ethcore/Cargo.toml

@@ -80,6 +80,17 @@ tempdir = "0.3"
 trie-standardmap = { git = "https://github.com/paritytech/parity-common" }
 
 [features]
+parity = ["work-notify", "price-info", "stratum"]
+# Large optional features that are enabled by default for Parity,
+# but might be omitted for other dependent crates.
+work-notify = ["ethcore-miner/work-notify"]
+price-info = ["ethcore-miner/price-info"]
+stratum = ["ethcore-stratum"]
+
+# Disables seal verification for mined blocks.
+# This allows you to submit any seal via RPC to test and benchmark
+# how fast pending block get's created while running on the mainnet.
+miner-debug = []
 # Display EVM debug traces.
 evm-debug = ["evm/evm-debug"]
 # Display EVM debug traces when running tests.
@@ -91,12 +102,11 @@ evm-debug-tests = ["evm-debug", "evm/evm-debug-tests"]
 slow-blocks = []
 # Run JSON consensus tests.
 json-tests = ["ethcore-transaction/json-tests", "test-helpers", "tempdir"]
+# Skip JSON consensus tests with pending issues.
+ci-skip-issue = []
 # Run memory/cpu heavy tests.
 test-heavy = []
 # Compile benches
 benches = []
 # Compile test helpers
 test-helpers = ["tempdir"]
-work-notify = ["ethcore-miner/work-notify"]
-price-info = ["ethcore-miner/price-info"]
-stratum = ["ethcore-stratum"]

ethcore/benches/evm.rs

@@ -16,17 +16,16 @@
 
 #![feature(test)]
 
-extern crate test;
-extern crate ethcore_util as util;
-extern crate rand;
 extern crate bn;
-extern crate parity_crypto;
+extern crate ethereum_types;
 extern crate ethkey;
+extern crate parity_crypto;
+extern crate rand;
 extern crate rustc_hex;
-extern crate ethcore_bigint;
+extern crate test;
 
-use self::test::{Bencher};
-use rand::{StdRng};
+use self::test::Bencher;
+use rand::StdRng;
 
 #[bench]
 fn bn_128_pairing(b: &mut Bencher) {
@@ -62,8 +61,7 @@ fn bn_128_mul(b: &mut Bencher) {
 fn sha256(b: &mut Bencher) {
 	use parity_crypto::digest::sha256;
 
-	let mut input: [u8; 256] = [0; 256];
-	let mut out = [0; 32];
+	let input = [0_u8; 256];
 
 	b.iter(|| {
 		sha256(&input);
@@ -74,7 +72,7 @@ fn sha256(b: &mut Bencher) {
 fn ecrecover(b: &mut Bencher) {
 	use rustc_hex::FromHex;
 	use ethkey::{Signature, recover as ec_recover};
-	use ethcore_bigint::hash::H256;
+	use ethereum_types::H256;
 	let input = FromHex::from_hex("47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad000000000000000000000000000000000000000000000000000000000000001b650acf9d3f5f0a2c799776a1254355d5f4061762a237396a99a0e0e3fc2bcd6729514a0dacb2e623ac4abd157cb18163ff942280db4d5caad66ddf941ba12e03").unwrap();
 	let hash = H256::from_slice(&input[0..32]);
 	let v = H256::from_slice(&input[32..64]);

ethcore/evm/src/evm.rs

@@ -57,7 +57,7 @@ impl Finalize for Result<GasLeft> {
 
 /// Cost calculation type. For low-gas usage we calculate costs using usize instead of U256
 pub trait CostType: Sized + From<usize> + Copy
-	+ ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Output=Self> +ops::Sub<Output=Self>
+	+ ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Output=Self> + ops::Sub<Output=Self>
 	+ ops::Shr<usize, Output=Self> + ops::Shl<usize, Output=Self>
 	+ cmp::Ord + fmt::Debug {
 	/// Converts this cost into `U256`

ethcore/evm/src/instructions.rs

@@ -134,6 +134,8 @@ enum_with_from_u8! {
 		RETURNDATASIZE = 0x3d,
 		#[doc = "copy return data buffer to memory"]
 		RETURNDATACOPY = 0x3e,
+		#[doc = "return the keccak256 hash of contract code"]
+		EXTCODEHASH = 0x3f,
 
 		#[doc = "get hash of most recent complete block"]
 		BLOCKHASH = 0x40,
@@ -326,7 +328,7 @@ enum_with_from_u8! {
 		#[doc = "like CALLCODE but keeps caller's value and sender"]
 		DELEGATECALL = 0xf4,
 		#[doc = "create a new account and set creation address to sha3(sender + sha3(init code)) % 2**160"]
-		CREATE2 = 0xfb,
+		CREATE2 = 0xf5,
 		#[doc = "stop execution and revert state changes. Return output data."]
 		REVERT = 0xfd,
 		#[doc = "like CALL but it does not take value, nor modify the state"]
@@ -492,6 +494,7 @@ lazy_static! {
 		arr[CALLDATALOAD as usize] = Some(InstructionInfo::new("CALLDATALOAD", 1, 1, GasPriceTier::VeryLow));
 		arr[CALLDATASIZE as usize] = Some(InstructionInfo::new("CALLDATASIZE", 0, 1, GasPriceTier::Base));
 		arr[CALLDATACOPY as usize] = Some(InstructionInfo::new("CALLDATACOPY", 3, 0, GasPriceTier::VeryLow));
+		arr[EXTCODEHASH as usize] = Some(InstructionInfo::new("EXTCODEHASH", 1, 1, GasPriceTier::Special));
 		arr[CODESIZE as usize] = Some(InstructionInfo::new("CODESIZE", 0, 1, GasPriceTier::Base));
 		arr[CODECOPY as usize] = Some(InstructionInfo::new("CODECOPY", 3, 0, GasPriceTier::VeryLow));
 		arr[GASPRICE as usize] = Some(InstructionInfo::new("GASPRICE", 0, 1, GasPriceTier::Base));
@@ -591,7 +594,7 @@ lazy_static! {
 		arr[DELEGATECALL as usize] = Some(InstructionInfo::new("DELEGATECALL", 6, 1, GasPriceTier::Special));
 		arr[STATICCALL as usize] = Some(InstructionInfo::new("STATICCALL", 6, 1, GasPriceTier::Special));
 		arr[SUICIDE as usize] = Some(InstructionInfo::new("SUICIDE", 1, 0, GasPriceTier::Special));
-		arr[CREATE2 as usize] = Some(InstructionInfo::new("CREATE2", 3, 1, GasPriceTier::Special));
+		arr[CREATE2 as usize] = Some(InstructionInfo::new("CREATE2", 4, 1, GasPriceTier::Special));
 		arr[REVERT as usize] = Some(InstructionInfo::new("REVERT", 2, 0, GasPriceTier::Zero));
 		arr
 	};

ethcore/evm/src/interpreter/gasometer.rs

@@ -125,12 +125,17 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 				let newval = stack.peek(1);
 				let val = U256::from(&*ext.storage_at(&address)?);
 
-				let gas = if val.is_zero() && !newval.is_zero() {
-					schedule.sstore_set_gas
+				let gas = if schedule.eip1283 {
+					let orig = U256::from(&*ext.initial_storage_at(&address)?);
+					calculate_eip1283_sstore_gas(schedule, &orig, &val, &newval)
 				} else {
-					// Refund for below case is added when actually executing sstore
-					// !is_zero(&val) && is_zero(newval)
-					schedule.sstore_reset_gas
+					if val.is_zero() && !newval.is_zero() {
+						schedule.sstore_set_gas
+					} else {
+						// Refund for below case is added when actually executing sstore
+						// !is_zero(&val) && is_zero(newval)
+						schedule.sstore_reset_gas
+					}
 				};
 				Request::Gas(Gas::from(gas))
 			},
@@ -143,6 +148,9 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 			instructions::EXTCODESIZE => {
 				Request::Gas(Gas::from(schedule.extcodesize_gas))
 			},
+			instructions::EXTCODEHASH => {
+				Request::Gas(Gas::from(schedule.extcodehash_gas))
+			},
 			instructions::SUICIDE => {
 				let mut gas = Gas::from(schedule.suicide_gas);
 
@@ -168,9 +176,8 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 				Request::GasMem(default_gas, mem_needed(stack.peek(0), stack.peek(1))?)
 			},
 			instructions::SHA3 => {
-				let w = overflowing!(add_gas_usize(Gas::from_u256(*stack.peek(1))?, 31));
-				let words = w >> 5;
-				let gas = Gas::from(schedule.sha3_gas) + (Gas::from(schedule.sha3_word_gas) * words);
+				let words = overflowing!(to_word_size(Gas::from_u256(*stack.peek(1))?));
+				let gas = overflowing!(Gas::from(schedule.sha3_gas).overflow_add(overflowing!(Gas::from(schedule.sha3_word_gas).overflow_mul(words))));
 				Request::GasMem(gas, mem_needed(stack.peek(0), stack.peek(1))?)
 			},
 			instructions::CALLDATACOPY | instructions::CODECOPY | instructions::RETURNDATACOPY => {
@@ -223,9 +230,24 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 
 				Request::GasMemProvide(gas, mem, Some(requested))
 			},
-			instructions::CREATE | instructions::CREATE2 => {
+			instructions::CREATE => {
+				let start = stack.peek(1);
+				let len = stack.peek(2);
+
 				let gas = Gas::from(schedule.create_gas);
-				let mem = mem_needed(stack.peek(1), stack.peek(2))?;
+				let mem = mem_needed(start, len)?;
+
+				Request::GasMemProvide(gas, mem, None)
+			},
+			instructions::CREATE2 => {
+				let start = stack.peek(1);
+				let len = stack.peek(2);
+
+				let base = Gas::from(schedule.create_gas);
+				let word = overflowing!(to_word_size(Gas::from_u256(*len)?));
+				let word_gas = overflowing!(Gas::from(schedule.sha3_word_gas).overflow_mul(word));
+				let gas = overflowing!(base.overflow_add(word_gas));
+				let mem = mem_needed(start, len)?;
 
 				Request::GasMemProvide(gas, mem, None)
 			},
@@ -275,8 +297,8 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 			},
 			Request::GasMemCopy(gas, mem_size, copy) => {
 				let (mem_gas_cost, new_mem_gas, new_mem_size) = self.mem_gas_cost(schedule, current_mem_size, &mem_size)?;
-				let copy = overflowing!(add_gas_usize(copy, 31)) >> 5;
-				let copy_gas = Gas::from(schedule.copy_gas) * copy;
+				let copy = overflowing!(to_word_size(copy));
+				let copy_gas = overflowing!(Gas::from(schedule.copy_gas).overflow_mul(copy));
 				let gas = overflowing!(gas.overflow_add(copy_gas));
 				let gas = overflowing!(gas.overflow_add(mem_gas_cost));
 
@@ -303,7 +325,7 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 		};
 
 		let current_mem_size = Gas::from(current_mem_size);
-		let req_mem_size_rounded = (overflowing!(mem_size.overflow_add(Gas::from(31 as usize))) >> 5) << 5;
+		let req_mem_size_rounded = overflowing!(to_word_size(*mem_size)) << 5;
 
 		let (mem_gas_cost, new_mem_gas) = if req_mem_size_rounded > current_mem_size {
 			let new_mem_gas = gas_for_mem(req_mem_size_rounded)?;
@@ -335,6 +357,99 @@ fn add_gas_usize<Gas: evm::CostType>(value: Gas, num: usize) -> (Gas, bool) {
 	value.overflow_add(Gas::from(num))
 }
 
+#[inline]
+fn to_word_size<Gas: evm::CostType>(value: Gas) -> (Gas, bool) {
+	let (gas, overflow) = add_gas_usize(value, 31);
+	if overflow {
+		return (gas, overflow);
+	}
+
+	(gas >> 5, false)
+}
+
+#[inline]
+fn calculate_eip1283_sstore_gas<Gas: evm::CostType>(schedule: &Schedule, original: &U256, current: &U256, new: &U256) -> Gas {
+	Gas::from(
+		if current == new {
+			// 1. If current value equals new value (this is a no-op), 200 gas is deducted.
+			schedule.sload_gas
+		} else {
+			// 2. If current value does not equal new value
+			if original == current {
+				// 2.1. If original value equals current value (this storage slot has not been changed by the current execution context)
+				if original.is_zero() {
+					// 2.1.1. If original value is 0, 20000 gas is deducted.
+					schedule.sstore_set_gas
+				} else {
+					// 2.1.2. Otherwise, 5000 gas is deducted.
+					schedule.sstore_reset_gas
+
+					// 2.1.2.1. If new value is 0, add 15000 gas to refund counter.
+				}
+			} else {
+				// 2.2. If original value does not equal current value (this storage slot is dirty), 200 gas is deducted. Apply both of the following clauses.
+				schedule.sload_gas
+
+				// 2.2.1. If original value is not 0
+				// 2.2.1.1. If current value is 0 (also means that new value is not 0), remove 15000 gas from refund counter. We can prove that refund counter will never go below 0.
+				// 2.2.1.2. If new value is 0 (also means that current value is not 0), add 15000 gas to refund counter.
+
+				// 2.2.2. If original value equals new value (this storage slot is reset)
+				// 2.2.2.1. If original value is 0, add 19800 gas to refund counter.
+				// 2.2.2.2. Otherwise, add 4800 gas to refund counter.
+			}
+		}
+	)
+}
+
+pub fn handle_eip1283_sstore_clears_refund(ext: &mut vm::Ext, original: &U256, current: &U256, new: &U256) {
+	let sstore_clears_schedule = ext.schedule().sstore_refund_gas;
+
+	if current == new {
+		// 1. If current value equals new value (this is a no-op), 200 gas is deducted.
+	} else {
+		// 2. If current value does not equal new value
+		if original == current {
+			// 2.1. If original value equals current value (this storage slot has not been changed by the current execution context)
+			if original.is_zero() {
+				// 2.1.1. If original value is 0, 20000 gas is deducted.
+			} else {
+				// 2.1.2. Otherwise, 5000 gas is deducted.
+				if new.is_zero() {
+					// 2.1.2.1. If new value is 0, add 15000 gas to refund counter.
+					ext.add_sstore_refund(sstore_clears_schedule);
+				}
+			}
+		} else {
+			// 2.2. If original value does not equal current value (this storage slot is dirty), 200 gas is deducted. Apply both of the following clauses.
+
+			if !original.is_zero() {
+				// 2.2.1. If original value is not 0
+				if current.is_zero() {
+					// 2.2.1.1. If current value is 0 (also means that new value is not 0), remove 15000 gas from refund counter. We can prove that refund counter will never go below 0.
+					ext.sub_sstore_refund(sstore_clears_schedule);
+				} else if new.is_zero() {
+					// 2.2.1.2. If new value is 0 (also means that current value is not 0), add 15000 gas to refund counter.
+					ext.add_sstore_refund(sstore_clears_schedule);
+				}
+			}
+
+			if original == new {
+				// 2.2.2. If original value equals new value (this storage slot is reset)
+				if original.is_zero() {
+					// 2.2.2.1. If original value is 0, add 19800 gas to refund counter.
+					let refund = ext.schedule().sstore_set_gas - ext.schedule().sload_gas;
+					ext.add_sstore_refund(refund);
+				} else {
+					// 2.2.2.2. Otherwise, add 4800 gas to refund counter.
+					let refund = ext.schedule().sstore_reset_gas - ext.schedule().sload_gas;
+					ext.add_sstore_refund(refund);
+				}
+			}
+		}
+	}
+}
+
 #[test]
 fn test_mem_gas_cost() {
 	// given

ethcore/evm/src/interpreter/mod.rs

@@ -186,8 +186,7 @@ impl<Cost: CostType> vm::Vm for Interpreter<Cost> {
 			match result {
 				InstructionResult::JumpToPosition(position) => {
 					if valid_jump_destinations.is_none() {
-						let code_hash = params.code_hash.clone().unwrap_or_else(|| keccak(code.as_ref()));
-						valid_jump_destinations = Some(self.cache.jump_destinations(&code_hash, code));
+						valid_jump_destinations = Some(self.cache.jump_destinations(&params.code_hash, code));
 					}
 					let jump_destinations = valid_jump_destinations.as_ref().expect("jump_destinations are initialized on first jump; qed");
 					let pos = self.verify_jump(position, jump_destinations)?;
@@ -230,8 +229,9 @@ impl<Cost: CostType> Interpreter<Cost> {
 			(instruction == instructions::STATICCALL && !schedule.have_static_call) ||
 			((instruction == instructions::RETURNDATACOPY || instruction == instructions::RETURNDATASIZE) && !schedule.have_return_data) ||
 			(instruction == instructions::REVERT && !schedule.have_revert) ||
-			((instruction == instructions::SHL || instruction == instructions::SHR || instruction == instructions::SAR) && !schedule.have_bitwise_shifting) {
-
+			((instruction == instructions::SHL || instruction == instructions::SHR || instruction == instructions::SAR) && !schedule.have_bitwise_shifting) ||
+			(instruction == instructions::EXTCODEHASH && !schedule.have_extcodehash)
+		{
 			return Err(vm::Error::BadInstruction {
 				instruction: instruction as u8
 			});
@@ -318,6 +318,11 @@ impl<Cost: CostType> Interpreter<Cost> {
 				let endowment = stack.pop_back();
 				let init_off = stack.pop_back();
 				let init_size = stack.pop_back();
+				let address_scheme = match instruction {
+					instructions::CREATE => CreateContractAddress::FromSenderAndNonce,
+					instructions::CREATE2 => CreateContractAddress::FromSenderSaltAndCodeHash(stack.pop_back().into()),
+					_ => unreachable!("instruction can only be CREATE/CREATE2 checked above; qed"),
+				};
 
 				let create_gas = provided.expect("`provided` comes through Self::exec from `Gasometer::get_gas_cost_mem`; `gas_gas_mem_cost` guarantees `Some` when instruction is `CALL`/`CALLCODE`/`DELEGATECALL`/`CREATE`; this is `CREATE`; qed");
 
@@ -335,7 +340,6 @@ impl<Cost: CostType> Interpreter<Cost> {
 				}
 
 				let contract_code = self.mem.read_slice(init_off, init_size);
-				let address_scheme = if instruction == instructions::CREATE { CreateContractAddress::FromSenderAndNonce } else { CreateContractAddress::FromSenderAndCodeHash };
 
 				let create_result = ext.create(&create_gas.as_u256(), &endowment, contract_code, address_scheme);
 				return match create_result {
@@ -510,8 +514,14 @@ impl<Cost: CostType> Interpreter<Cost> {
 
 				let current_val = U256::from(&*ext.storage_at(&address)?);
 				// Increase refund for clear
-				if !self.is_zero(&current_val) && self.is_zero(&val) {
-					ext.inc_sstore_clears();
+				if ext.schedule().eip1283 {
+					let original_val = U256::from(&*ext.initial_storage_at(&address)?);
+					gasometer::handle_eip1283_sstore_clears_refund(ext, &original_val, &current_val, &val);
+				} else {
+					if !current_val.is_zero() && val.is_zero() {
+						let sstore_clears_schedule = ext.schedule().sstore_refund_gas;
+						ext.add_sstore_refund(sstore_clears_schedule);
+					}
 				}
 				ext.set_storage(address, H256::from(&val))?;
 			},
@@ -568,9 +578,14 @@ impl<Cost: CostType> Interpreter<Cost> {
 			},
 			instructions::EXTCODESIZE => {
 				let address = u256_to_address(&stack.pop_back());
-				let len = ext.extcodesize(&address)?;
+				let len = ext.extcodesize(&address)?.unwrap_or(0);
 				stack.push(U256::from(len));
 			},
+			instructions::EXTCODEHASH => {
+				let address = u256_to_address(&stack.pop_back());
+				let hash = ext.extcodehash(&address)?.unwrap_or_else(H256::zero);
+				stack.push(U256::from(hash));
+			},
 			instructions::CALLDATACOPY => {
 				Self::copy_data_to_memory(&mut self.mem, stack, params.data.as_ref().map_or_else(|| &[] as &[u8], |d| &*d as &[u8]));
 			},
@@ -591,7 +606,11 @@ impl<Cost: CostType> Interpreter<Cost> {
 			instructions::EXTCODECOPY => {
 				let address = u256_to_address(&stack.pop_back());
 				let code = ext.extcode(&address)?;
-				Self::copy_data_to_memory(&mut self.mem, stack, &code);
+				Self::copy_data_to_memory(
+					&mut self.mem,
+					stack,
+					code.as_ref().map(|c| &(*c)[..]).unwrap_or(&[])
+				);
 			},
 			instructions::GASPRICE => {
 				stack.push(params.gas_price.clone());

ethcore/evm/src/interpreter/shared_cache.rs

@@ -50,17 +50,22 @@ impl SharedCache {
 	}
 
 	/// Get jump destinations bitmap for a contract.
-	pub fn jump_destinations(&self, code_hash: &H256, code: &[u8]) -> Arc<BitSet> {
-		if code_hash == &KECCAK_EMPTY {
-			return Self::find_jump_destinations(code);
-		}
+	pub fn jump_destinations(&self, code_hash: &Option<H256>, code: &[u8]) -> Arc<BitSet> {
+		if let Some(ref code_hash) = code_hash {
+			if code_hash == &KECCAK_EMPTY {
+				return Self::find_jump_destinations(code);
+			}
 
-		if let Some(d) = self.jump_destinations.lock().get_mut(code_hash) {
-			return d.0.clone();
+			if let Some(d) = self.jump_destinations.lock().get_mut(code_hash) {
+				return d.0.clone();
+			}
 		}
 
 		let d = Self::find_jump_destinations(code);
-		self.jump_destinations.lock().insert(code_hash.clone(), Bits(d.clone()));
+
+		if let Some(ref code_hash) = code_hash {
+			self.jump_destinations.lock().insert(*code_hash, Bits(d.clone()));
+		}
 
 		d
 	}

ethcore/evm/src/tests.rs

@@ -716,7 +716,7 @@ fn test_jumps(factory: super::Factory) {
 		test_finalize(vm.exec(params, &mut ext)).unwrap()
 	};
 
-	assert_eq!(ext.sstore_clears, 1);
+	assert_eq!(ext.sstore_clears, ext.schedule.sstore_refund_gas as i128);
 	assert_store(&ext, 0, "0000000000000000000000000000000000000000000000000000000000000000"); // 5!
 	assert_store(&ext, 1, "0000000000000000000000000000000000000000000000000000000000000078"); // 5!
 	assert_eq!(gas_left, U256::from(54_117));
@@ -746,6 +746,7 @@ fn test_calls(factory: super::Factory) {
 
 	assert_set_contains(&ext.calls, &FakeCall {
 		call_type: FakeCallType::Call,
+		create_scheme: None,
 		gas: U256::from(2556),
 		sender_address: Some(address.clone()),
 		receive_address: Some(code_address.clone()),
@@ -755,6 +756,7 @@ fn test_calls(factory: super::Factory) {
 	});
 	assert_set_contains(&ext.calls, &FakeCall {
 		call_type: FakeCallType::Call,
+		create_scheme: None,
 		gas: U256::from(2556),
 		sender_address: Some(address.clone()),
 		receive_address: Some(address.clone()),

ethcore/light/src/client/mod.rs

@@ -127,9 +127,6 @@ pub trait LightChainClient: Send + Sync {
 	/// Get the `i`th CHT root.
 	fn cht_root(&self, i: usize) -> Option<H256>;
 
-	/// Get the EIP-86 transition block number.
-	fn eip86_transition(&self) -> BlockNumber;
-
 	/// Get a report of import activity since the last call.
 	fn report(&self) -> ClientReport;
 }
@@ -585,10 +582,6 @@ impl<T: ChainDataFetcher> LightChainClient for Client<T> {
 		Client::cht_root(self, i)
 	}
 
-	fn eip86_transition(&self) -> BlockNumber {
-		self.engine().params().eip86_transition
-	}
-
 	fn report(&self) -> ClientReport {
 		Client::report(self)
 	}

ethcore/light/src/lib.rs

@@ -43,7 +43,7 @@ pub mod provider;
 mod types;
 
 pub use self::cache::Cache;
-pub use self::provider::Provider;
+pub use self::provider::{Provider, MAX_HEADERS_PER_REQUEST};
 pub use self::transaction_queue::TransactionQueue;
 pub use types::request as request;
 

ethcore/light/src/net/mod.rs

@@ -70,9 +70,6 @@ const PROPAGATE_TIMEOUT_INTERVAL: Duration = Duration::from_secs(5);
 const RECALCULATE_COSTS_TIMEOUT: TimerToken = 3;
 const RECALCULATE_COSTS_INTERVAL: Duration = Duration::from_secs(60 * 60);
 
-/// Max number of transactions in a single packet.
-const MAX_TRANSACTIONS_TO_PROPAGATE: usize = 64;
-
 // minimum interval between updates.
 const UPDATE_INTERVAL: Duration = Duration::from_millis(5000);
 
@@ -648,7 +645,7 @@ impl LightProtocol {
 	fn propagate_transactions(&self, io: &IoContext) {
 		if self.capabilities.read().tx_relay { return }
 
-		let ready_transactions = self.provider.ready_transactions(MAX_TRANSACTIONS_TO_PROPAGATE);
+		let ready_transactions = self.provider.transactions_to_propagate();
 		if ready_transactions.is_empty() { return }
 
 		trace!(target: "pip", "propagate transactions: {} ready", ready_transactions.len());

ethcore/light/src/net/tests/mod.rs

@@ -171,8 +171,8 @@ impl Provider for TestProvider {
 		})
 	}
 
-	fn ready_transactions(&self, max_len: usize) -> Vec<PendingTransaction> {
-		self.0.client.ready_transactions(max_len)
+	fn transactions_to_propagate(&self) -> Vec<PendingTransaction> {
+		self.0.client.transactions_to_propagate()
 	}
 }
 

ethcore/light/src/on_demand/mod.rs

@@ -204,6 +204,8 @@ fn guess_capabilities(requests: &[CheckedRequest]) -> Capabilities {
 				caps.serve_headers = true,
 			CheckedRequest::HeaderByHash(_, _) =>
 				caps.serve_headers = true,
+			CheckedRequest::HeaderWithAncestors(_, _) =>
+				caps.serve_headers = true,
 			CheckedRequest::TransactionIndex(_, _) => {} // hashes yield no info.
 			CheckedRequest::Signal(_, _) =>
 				caps.serve_headers = true,

ethcore/light/src/on_demand/request.rs

@@ -16,6 +16,7 @@
 
 //! Request types, verification, and verification errors.
 
+use std::cmp;
 use std::sync::Arc;
 
 use bytes::Bytes;
@@ -47,6 +48,8 @@ pub enum Request {
 	HeaderProof(HeaderProof),
 	/// A request for a header by hash.
 	HeaderByHash(HeaderByHash),
+	/// A request for a header by hash with a range of its ancestors.
+	HeaderWithAncestors(HeaderWithAncestors),
 	/// A request for the index of a transaction.
 	TransactionIndex(TransactionIndex),
 	/// A request for block receipts.
@@ -136,6 +139,7 @@ macro_rules! impl_single {
 // implement traits for each kind of request.
 impl_single!(HeaderProof, HeaderProof, (H256, U256));
 impl_single!(HeaderByHash, HeaderByHash, encoded::Header);
+impl_single!(HeaderWithAncestors, HeaderWithAncestors, Vec<encoded::Header>);
 impl_single!(TransactionIndex, TransactionIndex, net_request::TransactionIndexResponse);
 impl_single!(Receipts, BlockReceipts, Vec<Receipt>);
 impl_single!(Body, Body, encoded::Block);
@@ -246,6 +250,7 @@ impl From<encoded::Header> for HeaderRef {
 pub enum CheckedRequest {
 	HeaderProof(HeaderProof, net_request::IncompleteHeaderProofRequest),
 	HeaderByHash(HeaderByHash, net_request::IncompleteHeadersRequest),
+	HeaderWithAncestors(HeaderWithAncestors, net_request::IncompleteHeadersRequest),
 	TransactionIndex(TransactionIndex, net_request::IncompleteTransactionIndexRequest),
 	Receipts(BlockReceipts, net_request::IncompleteReceiptsRequest),
 	Body(Body, net_request::IncompleteBodyRequest),
@@ -267,6 +272,16 @@ impl From<Request> for CheckedRequest {
 				};
 				CheckedRequest::HeaderByHash(req, net_req)
 			}
+			Request::HeaderWithAncestors(req) => {
+				let net_req = net_request::IncompleteHeadersRequest {
+					start: req.block_hash.map(Into::into),
+					skip: 0,
+					max: req.ancestor_count + 1,
+					reverse: true,
+				};
+				trace!(target: "on_demand", "HeaderWithAncestors Request, {:?}", net_req);
+				CheckedRequest::HeaderWithAncestors(req, net_req)
+			}
 			Request::HeaderProof(req) => {
 				let net_req = net_request::IncompleteHeaderProofRequest {
 					num: req.num().into(),
@@ -335,6 +350,7 @@ impl CheckedRequest {
 		match self {
 			CheckedRequest::HeaderProof(_, req) => NetRequest::HeaderProof(req),
 			CheckedRequest::HeaderByHash(_, req) => NetRequest::Headers(req),
+			CheckedRequest::HeaderWithAncestors(_, req) => NetRequest::Headers(req),
 			CheckedRequest::TransactionIndex(_, req) => NetRequest::TransactionIndex(req),
 			CheckedRequest::Receipts(_, req) => NetRequest::Receipts(req),
 			CheckedRequest::Body(_, req) => NetRequest::Body(req),
@@ -390,6 +406,27 @@ impl CheckedRequest {
 
 				None
 			}
+			CheckedRequest::HeaderWithAncestors(_, ref req) => {
+				if req.skip != 1 || !req.reverse {
+					return None;
+				}
+
+				if let Some(&net_request::HashOrNumber::Hash(start)) = req.start.as_ref() {
+					let mut result = Vec::with_capacity(req.max as usize);
+					let mut hash = start;
+					let mut cache = cache.lock();
+					for _ in 0..req.max {
+						match cache.block_header(&hash) {
+							Some(header) => {
+								hash = header.parent_hash();
+								result.push(header);
+							}
+							None => return None,
+						}
+					}
+					Some(Response::HeaderWithAncestors(result))
+				} else { None }
+			}
 			CheckedRequest::Receipts(ref check, ref req) => {
 				// empty transactions -> no receipts
 				if check.0.as_ref().ok().map_or(false, |hdr| hdr.receipts_root() == KECCAK_NULL_RLP) {
@@ -458,6 +495,7 @@ macro_rules! match_me {
 		match $me {
 			CheckedRequest::HeaderProof($check, $req) => $e,
 			CheckedRequest::HeaderByHash($check, $req) => $e,
+			CheckedRequest::HeaderWithAncestors($check, $req) => $e,
 			CheckedRequest::TransactionIndex($check, $req) => $e,
 			CheckedRequest::Receipts($check, $req) => $e,
 			CheckedRequest::Body($check, $req) => $e,
@@ -487,6 +525,15 @@ impl IncompleteRequest for CheckedRequest {
 					_ => Ok(()),
 				}
 			}
+			CheckedRequest::HeaderWithAncestors(ref check, ref req) => {
+				req.check_outputs(&mut f)?;
+
+				// make sure the output given is definitively a hash.
+				match check.block_hash {
+					Field::BackReference(r, idx) => f(r, idx, OutputKind::Hash),
+					_ => Ok(()),
+				}
+			}
 			CheckedRequest::TransactionIndex(_, ref req) => req.check_outputs(f),
 			CheckedRequest::Receipts(_, ref req) => req.check_outputs(f),
 			CheckedRequest::Body(_, ref req) => req.check_outputs(f),
@@ -507,15 +554,46 @@ impl IncompleteRequest for CheckedRequest {
 
 	fn complete(self) -> Result<Self::Complete, net_request::NoSuchOutput> {
 		match self {
-			CheckedRequest::HeaderProof(_, req) => req.complete().map(CompleteRequest::HeaderProof),
-			CheckedRequest::HeaderByHash(_, req) => req.complete().map(CompleteRequest::Headers),
-			CheckedRequest::TransactionIndex(_, req) => req.complete().map(CompleteRequest::TransactionIndex),
-			CheckedRequest::Receipts(_, req) => req.complete().map(CompleteRequest::Receipts),
-			CheckedRequest::Body(_, req) => req.complete().map(CompleteRequest::Body),
-			CheckedRequest::Account(_, req) => req.complete().map(CompleteRequest::Account),
-			CheckedRequest::Code(_, req) => req.complete().map(CompleteRequest::Code),
-			CheckedRequest::Execution(_, req) => req.complete().map(CompleteRequest::Execution),
-			CheckedRequest::Signal(_, req) => req.complete().map(CompleteRequest::Signal),
+			CheckedRequest::HeaderProof(_, req) => {
+				trace!(target: "on_demand", "HeaderProof request completed {:?}", req);
+				req.complete().map(CompleteRequest::HeaderProof)
+			}
+			CheckedRequest::HeaderByHash(_, req) => {
+				trace!(target: "on_demand", "HeaderByHash request completed {:?}", req);
+				req.complete().map(CompleteRequest::Headers)
+			}
+			CheckedRequest::HeaderWithAncestors(_, req) => {
+				trace!(target: "on_demand", "HeaderWithAncestors request completed {:?}", req);
+				req.complete().map(CompleteRequest::Headers)
+			}
+			CheckedRequest::TransactionIndex(_, req) => {
+				trace!(target: "on_demand", "TransactionIndex request completed {:?}", req);
+				req.complete().map(CompleteRequest::TransactionIndex)
+			}
+			CheckedRequest::Receipts(_, req) => {
+				trace!(target: "on_demand", "Receipt request completed {:?}", req);
+				req.complete().map(CompleteRequest::Receipts)
+			}
+			CheckedRequest::Body(_, req) => {
+				trace!(target: "on_demand", "Block request completed {:?}", req);
+				req.complete().map(CompleteRequest::Body)
+			}
+			CheckedRequest::Account(_, req) => {
+				trace!(target: "on_demand", "Account request completed {:?}", req);
+				req.complete().map(CompleteRequest::Account)
+			}
+			CheckedRequest::Code(_, req) => {
+				trace!(target: "on_demand", "Code request completed {:?}", req);
+				req.complete().map(CompleteRequest::Code)
+			}
+			CheckedRequest::Execution(_, req) => {
+				trace!(target: "on_demand", "Execution request completed {:?}", req);
+				req.complete().map(CompleteRequest::Execution)
+			}
+			CheckedRequest::Signal(_, req) => {
+				trace!(target: "on_demand", "Signal request completed {:?}", req);
+				req.complete().map(CompleteRequest::Signal)
+			}
 		}
 	}
 
@@ -551,6 +629,9 @@ impl net_request::CheckedRequest for CheckedRequest {
 			CheckedRequest::HeaderByHash(ref prover, _) =>
 				expect!((&NetResponse::Headers(ref res), &CompleteRequest::Headers(ref req)) =>
 					prover.check_response(cache, &req.start, &res.headers).map(Response::HeaderByHash)),
+			CheckedRequest::HeaderWithAncestors(ref prover, _) =>
+				expect!((&NetResponse::Headers(ref res), &CompleteRequest::Headers(ref req)) =>
+					prover.check_response(cache, &req.start, &res.headers).map(Response::HeaderWithAncestors)),
 			CheckedRequest::TransactionIndex(ref prover, _) =>
 				expect!((&NetResponse::TransactionIndex(ref res), _) =>
 					prover.check_response(cache, res).map(Response::TransactionIndex)),
@@ -584,6 +665,8 @@ pub enum Response {
 	HeaderProof((H256, U256)),
 	/// Response to a header-by-hash request.
 	HeaderByHash(encoded::Header),
+	/// Response to a header-by-hash with ancestors request.
+	HeaderWithAncestors(Vec<encoded::Header>),
 	/// Response to a transaction-index request.
 	TransactionIndex(net_request::TransactionIndexResponse),
 	/// Response to a receipts request.
@@ -625,6 +708,10 @@ pub enum Error {
 	Decoder(::rlp::DecoderError),
 	/// Empty response.
 	Empty,
+	/// Response data length exceeds request max.
+	TooManyResults(u64, u64),
+	/// Response data is incomplete.
+	TooFewResults(u64, u64),
 	/// Trie lookup error (result of bad proof)
 	Trie(TrieError),
 	/// Bad inclusion proof
@@ -641,6 +728,8 @@ pub enum Error {
 	WrongTrieRoot(H256, H256),
 	/// Wrong response kind.
 	WrongKind,
+	/// Wrong sequence of headers.
+	WrongHeaderSequence,
 }
 
 impl From<::rlp::DecoderError> for Error {
@@ -701,6 +790,65 @@ impl HeaderProof {
 	}
 }
 
+/// Request for a header by hash with a range of ancestors.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct HeaderWithAncestors {
+	/// Hash of the last block in the range to fetch.
+	pub block_hash: Field<H256>,
+	/// Number of headers before the last block to fetch in addition.
+	pub ancestor_count: u64,
+}
+
+impl HeaderWithAncestors {
+	/// Check a response for the headers.
+	pub fn check_response(
+		&self,
+		cache: &Mutex<::cache::Cache>,
+		start: &net_request::HashOrNumber,
+		headers: &[encoded::Header]
+	) -> Result<Vec<encoded::Header>, Error> {
+		let expected_hash = match (self.block_hash, start) {
+			(Field::Scalar(ref h), &net_request::HashOrNumber::Hash(ref h2)) => {
+				if h != h2 { return Err(Error::WrongHash(*h, *h2)) }
+				*h
+			}
+			(_, &net_request::HashOrNumber::Hash(h2)) => h2,
+			_ => return Err(Error::HeaderByNumber),
+		};
+
+		let start_header = headers.first().ok_or(Error::Empty)?;
+		let start_hash = start_header.hash();
+		if start_hash != expected_hash {
+			return Err(Error::WrongHash(expected_hash, start_hash));
+		}
+
+		let expected_len = 1 + cmp::min(self.ancestor_count, start_header.number());
+		let actual_len = headers.len() as u64;
+		match actual_len.cmp(&expected_len) {
+			cmp::Ordering::Less =>
+				return Err(Error::TooFewResults(expected_len, actual_len)),
+			cmp::Ordering::Greater =>
+				return Err(Error::TooManyResults(expected_len, actual_len)),
+			cmp::Ordering::Equal => (),
+		};
+
+		for (header, prev_header) in headers.iter().zip(headers[1..].iter()) {
+			if header.number() != prev_header.number() + 1 ||
+				header.parent_hash() != prev_header.hash()
+			{
+				return Err(Error::WrongHeaderSequence)
+			}
+		}
+
+		let mut cache = cache.lock();
+		for header in headers {
+			cache.insert_block_header(header.hash(), header.clone());
+		}
+
+		Ok(headers.to_vec())
+	}
+}
+
 /// Request for a header by hash.
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct HeaderByHash(pub Field<H256>);
@@ -993,6 +1141,83 @@ mod tests {
 		assert!(HeaderByHash(hash.into()).check_response(&cache, &hash.into(), &[raw_header]).is_ok())
 	}
 
+	#[test]
+	fn check_header_with_ancestors() {
+		let mut last_header_hash = H256::default();
+		let mut headers = (0..11).map(|num| {
+			let mut header = Header::new();
+			header.set_number(num);
+			header.set_parent_hash(last_header_hash);
+
+			last_header_hash = header.hash();
+			header
+		}).collect::<Vec<_>>();
+
+		headers.reverse();  // because responses are in reverse order
+
+		let raw_headers = headers.iter()
+			.map(|hdr| encoded::Header::new(::rlp::encode(hdr).into_vec()))
+			.collect::<Vec<_>>();
+
+		let mut invalid_successor = Header::new();
+		invalid_successor.set_number(11);
+		invalid_successor.set_parent_hash(headers[1].hash());
+
+		let raw_invalid_successor = encoded::Header::new(::rlp::encode(&invalid_successor).into_vec());
+
+		let cache = Mutex::new(make_cache());
+
+		let header_with_ancestors = |hash, count| {
+			HeaderWithAncestors {
+				block_hash: hash,
+				ancestor_count: count
+			}
+		};
+
+		// Correct responses
+		assert!(header_with_ancestors(headers[0].hash().into(), 0)
+				.check_response(&cache, &headers[0].hash().into(), &raw_headers[0..1]).is_ok());
+		assert!(header_with_ancestors(headers[0].hash().into(), 2)
+				.check_response(&cache, &headers[0].hash().into(), &raw_headers[0..3]).is_ok());
+		assert!(header_with_ancestors(headers[0].hash().into(), 10)
+				.check_response(&cache, &headers[0].hash().into(), &raw_headers[0..11]).is_ok());
+		assert!(header_with_ancestors(headers[2].hash().into(), 2)
+				.check_response(&cache, &headers[2].hash().into(), &raw_headers[2..5]).is_ok());
+		assert!(header_with_ancestors(headers[2].hash().into(), 10)
+				.check_response(&cache, &headers[2].hash().into(), &raw_headers[2..11]).is_ok());
+		assert!(header_with_ancestors(invalid_successor.hash().into(), 0)
+				.check_response(&cache, &invalid_successor.hash().into(), &[raw_invalid_successor.clone()]).is_ok());
+
+		// Incorrect responses
+		assert_eq!(header_with_ancestors(invalid_successor.hash().into(), 0)
+				   .check_response(&cache, &headers[0].hash().into(), &raw_headers[0..1]),
+				   Err(Error::WrongHash(invalid_successor.hash(), headers[0].hash())));
+		assert_eq!(header_with_ancestors(headers[0].hash().into(), 0)
+				   .check_response(&cache, &headers[0].hash().into(), &[]),
+				   Err(Error::Empty));
+		assert_eq!(header_with_ancestors(headers[0].hash().into(), 10)
+				   .check_response(&cache, &headers[0].hash().into(), &raw_headers[0..10]),
+				   Err(Error::TooFewResults(11, 10)));
+		assert_eq!(header_with_ancestors(headers[0].hash().into(), 9)
+				   .check_response(&cache, &headers[0].hash().into(), &raw_headers[0..11]),
+				   Err(Error::TooManyResults(10, 11)));
+
+		let response = &[raw_headers[0].clone(), raw_headers[2].clone()];
+		assert_eq!(header_with_ancestors(headers[0].hash().into(), 1)
+				   .check_response(&cache, &headers[0].hash().into(), response),
+				   Err(Error::WrongHeaderSequence));
+
+		let response = &[raw_invalid_successor.clone(), raw_headers[0].clone()];
+		assert_eq!(header_with_ancestors(invalid_successor.hash().into(), 1)
+				   .check_response(&cache, &invalid_successor.hash().into(), response),
+				   Err(Error::WrongHeaderSequence));
+
+		let response = &[raw_invalid_successor.clone(), raw_headers[1].clone()];
+		assert_eq!(header_with_ancestors(invalid_successor.hash().into(), 1)
+				   .check_response(&cache, &invalid_successor.hash().into(), response),
+				   Err(Error::WrongHeaderSequence));
+	}
+
 	#[test]
 	fn check_body() {
 		use rlp::RlpStream;

ethcore/light/src/provider.rs

@@ -33,6 +33,9 @@ use transaction_queue::TransactionQueue;
 
 use request;
 
+/// Maximum allowed size of a headers request.
+pub const MAX_HEADERS_PER_REQUEST: u64 = 512;
+
 /// Defines the operations that a provider for the light subprotocol must fulfill.
 pub trait Provider: Send + Sync {
 	/// Provide current blockchain info.
@@ -54,7 +57,6 @@ pub trait Provider: Send + Sync {
 	/// results within must adhere to the `skip` and `reverse` parameters.
 	fn block_headers(&self, req: request::CompleteHeadersRequest) -> Option<request::HeadersResponse> {
 		use request::HashOrNumber;
-		const MAX_HEADERS_TO_SEND: u64 = 512;
 
 		if req.max == 0 { return None }
 
@@ -83,7 +85,7 @@ pub trait Provider: Send + Sync {
 			}
 		};
 
-		let max = ::std::cmp::min(MAX_HEADERS_TO_SEND, req.max);
+		let max = ::std::cmp::min(MAX_HEADERS_PER_REQUEST, req.max);
 
 		let headers: Vec<_> = (0u64..max)
 			.map(|x: u64| x.saturating_mul(req.skip.saturating_add(1)))
@@ -128,7 +130,7 @@ pub trait Provider: Send + Sync {
 	fn header_proof(&self, req: request::CompleteHeaderProofRequest) -> Option<request::HeaderProofResponse>;
 
 	/// Provide pending transactions.
-	fn ready_transactions(&self, max_len: usize) -> Vec<PendingTransaction>;
+	fn transactions_to_propagate(&self) -> Vec<PendingTransaction>;
 
 	/// Provide a proof-of-execution for the given transaction proof request.
 	/// Returns a vector of all state items necessary to execute the transaction.
@@ -283,8 +285,8 @@ impl<T: ProvingBlockChainClient + ?Sized> Provider for T {
 			.map(|(_, proof)| ::request::ExecutionResponse { items: proof })
 	}
 
-	fn ready_transactions(&self, max_len: usize) -> Vec<PendingTransaction> {
-		BlockChainClient::ready_transactions(self, max_len)
+	fn transactions_to_propagate(&self) -> Vec<PendingTransaction> {
+		BlockChainClient::transactions_to_propagate(self)
 			.into_iter()
 			.map(|tx| tx.pending().clone())
 			.collect()
@@ -370,12 +372,10 @@ impl<L: AsLightClient + Send + Sync> Provider for LightProvider<L> {
 		None
 	}
 
-	fn ready_transactions(&self, max_len: usize) -> Vec<PendingTransaction> {
+	fn transactions_to_propagate(&self) -> Vec<PendingTransaction> {
 		let chain_info = self.chain_info();
-		let mut transactions = self.txqueue.read()
-			.ready_transactions(chain_info.best_block_number, chain_info.best_block_timestamp);
-		transactions.truncate(max_len);
-		transactions
+		self.txqueue.read()
+			.ready_transactions(chain_info.best_block_number, chain_info.best_block_timestamp)
 	}
 }
 

ethcore/res/ethereum/byzantium_test.json

@@ -6,10 +6,10 @@
 				"minimumDifficulty": "0x020000",
 				"difficultyBoundDivisor": "0x0800",
 				"durationLimit": "0x0d",
-				"blockReward": "0x4563918244F40000",
+				"blockReward": "0x29A2241AF62C0000",
 				"homesteadTransition": "0x0",
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": "0x0",
+				"eip649Reward": "0x29A2241AF62C0000",
 				"eip649Transition": "0x0"
 			}
 		}

ethcore/res/ethereum/constantinople_test.json

@@ -1,16 +1,18 @@
 {
-	"name": "Byzantium (Test)",
+	"name": "Constantinople (test)",
 	"engine": {
 		"Ethash": {
 			"params": {
 				"minimumDifficulty": "0x020000",
 				"difficultyBoundDivisor": "0x0800",
 				"durationLimit": "0x0d",
-				"blockReward": "0x4563918244F40000",
+				"blockReward": "0x29A2241AF62C0000",
 				"homesteadTransition": "0x0",
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": "0x0",
-				"eip649Transition": "0x0"
+				"eip649Transition": "0x5",
+				"eip649Reward": "0x1BC16D674EC80000",
+				"eip1234Transition": "0x5",
+				"eip1234Reward": "0x1BC16D674EC80000"
 			}
 		}
 	},
@@ -29,11 +31,14 @@
 		"eip161abcTransition": "0x0",
 		"eip161dTransition": "0x0",
 		"eip140Transition": "0x0",
-		"eip210Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",
 		"eip155Transition": "0x0",
-		"eip658Transition": "0x0"
+		"eip658Transition": "0x0",
+		"eip145Transition": "0x0",
+		"eip1014Transition": "0x0",
+		"eip1052Transition": "0x0",
+		"eip1283Transition": "0x0"
 	},
 	"genesis": {
 		"seal": {
@@ -54,9 +59,9 @@
 		"0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
 		"0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
 		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 100 } } } },
+		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 20 } } } },
 		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "0x00", "pricing": { "linear": { "base": 500, "word": 0 } } } },
-		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 2000, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 40000, "word": 0 } } } },
 		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
 	}
 }

ethcore/res/ethereum/easthub.json

@@ -27,8 +27,7 @@
 		"eip155Transition": "0x0",
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {

ethcore/res/ethereum/eip150_test.json

@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffffff",
-		"eip86Transition": "0x7fffffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x7fffffffffffffff"

ethcore/res/ethereum/eip161_test.json

@@ -23,8 +23,7 @@
 		"eip161abcTransition": "0x0",
 		"eip161dTransition": "0x0",
 		"eip98Transition": "0x7fffffffffffffff",
-		"eip86Transition": "0x7fffffffffffffff",
-		"eip155Transition": "0x7fffffffffffffff",
+		"eip155Transition": "0x0",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x0"
 	},

ethcore/res/ethereum/eip210_test.json

@@ -0,0 +1,54 @@
+{
+	"name": "EIP210 (test)",
+	"engine": {
+		"Ethash": {
+			"params": {
+				"minimumDifficulty": "0x020000",
+				"difficultyBoundDivisor": "0x0800",
+				"durationLimit": "0x0d",
+				"blockReward": "0x4563918244F40000",
+				"homesteadTransition": "0x0"
+			}
+		}
+	},
+	"params": {
+		"gasLimitBoundDivisor": "0x0400",
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+		"accountStartNonce": "0x00",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x1",
+		"maxCodeSize": 24576,
+		"maxCodeSizeTransition": "0x0",
+		"eip98Transition": "0xffffffffffffffff",
+		"eip150Transition": "0x0",
+		"eip160Transition": "0x0",
+		"eip161abcTransition": "0x0",
+		"eip161dTransition": "0x0",
+		"eip210Transition": "0x0"
+	},
+	"genesis": {
+		"seal": {
+			"ethereum": {
+				"nonce": "0x0000000000000042",
+				"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
+			}
+		},
+		"difficulty": "0x400000000",
+		"author": "0x0000000000000000000000000000000000000000",
+		"timestamp": "0x00",
+		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
+		"gasLimit": "0x1388"
+	},
+	"accounts": {
+		"0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
+		"0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
+		"0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
+		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 100 } } } },
+		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "0x00", "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 2000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
+	}
+}

ethcore/res/ethereum/ellaism.json

@@ -29,7 +29,6 @@
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": "0x0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"wasmActivationTransition": 2000000,
 		"eip140Transition": 2000000,
 		"eip211Transition": 2000000,

ethcore/res/ethereum/expanse.json

@@ -38,7 +38,6 @@
 		"eip161abcTransition": "0x927C0",
 		"eip161dTransition": "0x927C0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x927C0",
 		"eip140Transition": "0xC3500",
 		"eip211Transition": "0xC3500",

ethcore/res/ethereum/foundation.json

@@ -150,7 +150,6 @@
 		"eip161dTransition": 2675000,
 		"eip155Transition": 2675000,
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": 2675000,
 		"eip140Transition": 4370000,
@@ -173,9 +172,9 @@
 		"gasLimit": "0x1388",
 		"stateRoot": "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544"
 	},
-	"hardcodedSync": {
-		"header": "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",
-		"totalDifficulty": "4838383800145139949936",
+	"hardcodedSync": 	{
+		"header": "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",
+		"totalDifficulty": "7128515864594819065361",
 		"CHTs": [
 			"0x0eb474b7721727204978e92e27d31cddff56471911e424a4c8271c35f9c982cc",
 			"0xe10e94515fb5ffb7ffa9bf50db4a959b3f50c2ff75e0b8bd5f5e038749e52a11",
@@ -3014,7 +3013,336 @@
 			"0x118b3ae7ad25ab96fe8a63973312c758d4ce9ecd39cc24913c26a65b4b5534de",
 			"0x19cd088af8dbe2d3e6ca7987d9ee1564ea2256f482840b1d2f0da85060de9a86",
 			"0x98bc07422cf8b0c4d1428afb759300d9a7637de2518528d34f7d237be7e863be",
-			"0x0c64526b393066911c7da3f17f9e652cfa38112ae324e3c84416e811d3fe7cad"
+			"0x0c64526b393066911c7da3f17f9e652cfa38112ae324e3c84416e811d3fe7cad",
+			"0xa30cbfaf518996ba776b426a7068faad4ee49775db45565ebd327f9c679a45b4",
+			"0xd3e1a807f5940ee1a321b20b7931bef90515132ea9959df94e55529e05802cab",
+			"0x338aef579d9ec8acc1a0411c1674bcf213d03aa7d4bbc56707e081829ce30004",
+			"0x68c7a603089a220273f019001a39bfa9194590a6fa6d8ba960ddf4888b105a6b",
+			"0xd6a9d2c354e1dd77322800d24774eb03b589dd94bcdb3cc2b70437ed70411e6a",
+			"0x39c017c42ad571564792bf5741b3ae786ff0c24ebcb5ee46882ce0545b8a2262",
+			"0xf5caea6b23f4085c9f94c880d89b1c23eb69c03dc098b426143ae4b28969a2d8",
+			"0x959eebc05ff0dfae8c7e6699f069b38b5f2e5bc8c155bc35fc7f578d2d112993",
+			"0x199e90557d4d9e13c3e7a4b5b4ef6fe52cd2c724c36eaa44b7fa151efebbbeee",
+			"0x0bfe35d253227696e76f92ff13e4c545c57fca51186a16f687e76d2e6707d34f",
+			"0xadf8b7678f98b0e5009130d9d5d77add6e460b67b0529abc5315c44dadea0cb4",
+			"0x86582f3a98b218939aefd7eea438ee278d1faaf41920e8c72922c46fd56f1c32",
+			"0x001b728a4737fdd53cde20341fa0adec9aa8ab7c7c1db244fbd509a6c4f3f364",
+			"0x9207900bfdd6c87e2ba8498c0372706799604a207930eeb331580459d17f89cb",
+			"0xd2192fcf74cad70e6f7986a0b088de8658a14638a4c03d7ae616a88ceea00ba2",
+			"0xbf6f6b91742eebe70204eb7a70196ef636fc2db4d4c4f89cd5826fbf990a945d",
+			"0x5c1210951949402fe3b012577f1af0d3e285a0b39c3fe19c84f7930e003c06de",
+			"0xa16d57f777f94f032f7f2f75b2e25ebd11559effee98b39a5a1e7cc804cfbf06",
+			"0x1b9561fb8035ec6955454d6710f053d7ad3d8e0753aaac568ac3bc98f874465e",
+			"0x1a622da786425e0b65b9083a451a419c75e16908fa04d89ddc2c11d94ffe65a0",
+			"0xbfcb9b1d847eb40b6808e45bf3d2fb8f6588d6f103167be65f246d0733afd1f7",
+			"0x2317640589ab9d52e7f5e8dda95ff3b1beceacc5832341e9053b71209bfad07f",
+			"0xa10611b829dbb533e565ad01632b26b1fd642a4393e7fdd9b8f235f11bb606c8",
+			"0xe4ea4173982f342e396356b0bb0eb47e6748461ecce0f34dbe8fc084cf6a9fbc",
+			"0xd58399c0d0ae878338d2915eaf2d65f2d1e29eb8d551d254e68bce7a8235adcb",
+			"0xc0c8b73ffc675a207f73903c49d81131e6831e4c8e071b988ed9f2a5d2277024",
+			"0xe1ca77bafa66bb055c671978b3d1bd5df32f8e269330507f071afd627012b6af",
+			"0x67a1093cbddf41264009d1dbbc33fbc25a337339be0727e70c512b585897749c",
+			"0x0fd615782db5cf4c0a3686721cbc6245696c1bc9b403a9eaffae00968d2c8ece",
+			"0xc3c2dcaee8954ca86d9b3e4e98c4bb4f6b6bc183f9eb062016c5a25b2280717b",
+			"0x70265915f5ed94d589afafa3d0d0eab6310195cc690aa82bd65e4a488b398c58",
+			"0xde3fead8ce29c04a86dcb081da2cabda5366d28de5ebfe2f8064780413f71edf",
+			"0x0ae43394fcf6ebdabdcc1ede314fe779eb61a12eab807a9d3437d9167e2247e3",
+			"0x3241127e2c7fbb3db9fe0c602b0c94e22c684b7910ffcf09c1c443e567f95e4d",
+			"0xcb94ba286eeaa1129b490bb5891e603fd35e85c97c2132c1216d1774f9017f35",
+			"0xbf396cd23c29ef21fb535880ef621457fb71981f856f2a09c494cd005d38f981",
+			"0x3df0c90ed7aba260e820ca1d28ce1778149e163524e306309aa346bbadedcf2b",
+			"0x66a2724f7481aa3ab83a8f1bae2caef8a7bc607c7ffd5bbb1cf3766741db804f",
+			"0x7a0c3492f4022322e10d81bc10a5db9aceec81d1ab70cdffd31418b79d750fd2",
+			"0x96a826cb667924ed75ec708bf07cf4c7c05f84a0132e154b71eaf6e193590e87",
+			"0xcc7030fe617c318a31984d04e3d7f2ff2196894bc429f3f64bfd69b969dc9b56",
+			"0x3fa94aae223f5aeb593246f1a93d6d694b48946c09d879e791f1188a9dedc4c0",
+			"0xd49e51fc324fe58159575c0c24171f4eb1aaf58ed8e1311c3849538c8cec3ce1",
+			"0xc474123906eae5cd48a10e0d93fcbbd653f0c6d25275f827d4fac51e696c3d91",
+			"0xacd7b790a19026fa3f3b0a354878d4fcd79dc600f7ba5cedd2eefffe1ceda76c",
+			"0x41b311a188cd7ce1444d258dc379994b81a895226276c7bfe5e6cb29a5f92142",
+			"0xda0ae01db7f73f07fce46b94c24d6e400598378a6baf01123dd710c5425fb8c9",
+			"0xe62e08175a02b575e28b9e029a838c365e3ce4278f60c2d3b5d529768a4b47c4",
+			"0x99b804c8d0feda7f9df961527d634fb8b2d477a362e1d8158856885a13425fa9",
+			"0xe73597be8ef7d78f862c7a94a8ccff17f559816eba2f830821c6f6436898f9fb",
+			"0x36de9ee4c80853c865b16904cd8f6c0e9a99ff9e7bf05100bfbc76789cedd4d1",
+			"0xf480b762872373102393461ff3a21323a1df799c315fd167780a45d7bfaae84e",
+			"0x303b66babd21e72449cad413e04bdb0bc3ebcbb84a79dd30ed7c972c5341b82b",
+			"0xbf111684fbe44a973594f31cdee2c94e807bff9cf7584c22dcd609d8234f6e62",
+			"0x79b26cc3bbf49b6f25afbff7e97e4e45f2dcb359095fdbeb7fb7addee692afc3",
+			"0x2839d620cc140ba838ecba6e7e52db8cf7b5cd4cf4857f72f3bfbc9b1cf0fbd9",
+			"0x93074136f4eec367adcf27955d38efc0dc6da514693bfc97935c7871793e35ea",
+			"0x21f5af18a4cf0096b6e6a3d4c98f4043cfee5c4ee085ce106f86b713160144b8",
+			"0x90d16b403e2deca6cd5c80e52eba0b84b2875e1dfd75fffb1a2f82bc91eb6942",
+			"0x8a5cb6854c19a865f51e3ee9eaf8e843a97b272f6467634ba40e547a435ef624",
+			"0x9afe42a0dffca8ec063c83908fd6237d6130c9dfeab57078bdd02b6ac6d0ea07",
+			"0xa05cc6108b475d3e68e280e98f514cfb6df4f004e1b7708fcfd4528d346bea6b",
+			"0x71f10879b875caefab46669e8525b9c0487bbe3247e43a6cdb1dedbfb4d4ba33",
+			"0x7debdafd2b1410469fd76e2a39dcd1b8f400292f5359ecd39186a5be0f9e44b8",
+			"0x076f8741b668f3f715a7142f5c1592ffb58ca13e8612edc340619a1ca6ce3f2a",
+			"0xe312bb85cd945eb45f72868e6651633964f22ce3ffcbd0f3701bf57ac0c13edd",
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+			"0xeff6a1255090509eccfdea2e591516886c91191f1f02eaae4808ac95009086fc",
+			"0x37cf60888e5ec75841e7f0533feef7200185a1c9f3253073216d83923c864829",
+			"0xb169ebb9e418809a96529835bc293782e4fc6310dba450afe3e95a7abdf7cc01",
+			"0xa3c8d5c71ce0477a247f56bfe95272ea07f0b7f10a8526b6e3ff9a8de8faa9ab",
+			"0x2bf18db4ee84bafbbabaf05d1d4d383c0d5fc91be6ae902334496996eb3a8e48",
+			"0x6c116f0d5809a2c28351a737ef3dbd1808685e1fd656e37df6b6e524aa82c918",
+			"0x21e2c8e019c687fdb360c9bdd4e3a5133488cd2e0365aee3b823120734aa6f27",
+			"0x20c9a1db9de894ab4f576265da25f391b32c0805c3da76fbfdd0aaf300f88a39",
+			"0x23ef1f43af87be7396449fc1f89d9766c59e8adf2660812293c65a27482ddb8e",
+			"0x04a82d3a4a5e7f2507688ecdcdc300d7fb97aa8be92a671d7d42c0b60fa4532b",
+			"0x99e204c42afd6d4040faad384517d99bd0e077b03310d32223234d2251d6a07c",
+			"0xe342c0c4295665b9e25773fc9998e18c460e723d0a14efdb59c19b27b9c7011b",
+			"0xb654b1b8ede0d54a605cda54b4635d2b3c2bb8efd01ebd416e52cc87b590d4f3",
+			"0x5daabc41eeb6de98336411a03ec0323995e81549941cf32b7e15c765d1b7b39e",
+			"0x5103fc7f0fc6df43fb081b580bb01476f2b1cbde73e4d0f9d1fa6d8427fae789",
+			"0xe2ecf5daba51d2f7b22106033fc43f956bd1db0c5ad02bd941bd3d2b96ca21c5",
+			"0xf152bce5c6d1efb7e22cde72d6b8ca37f556ffb686a13770c5fab46e04837c92",
+			"0x306007d8091caa5baaa78643307f5abf9a5f03996fc072a9016ba6b487b2017c",
+			"0xf57308d0c02c6b8e2416c070554c7e29911fa84ef4cf2d934e2322ca262e987c",
+			"0xb234fe7433d7fd71fe0c6dfc834e4bcbf84a261b95760a6c4eb67d222b9ff392",
+			"0x753059f3405f60da3aa7cd1aa0cbcfa4d5ef4f2a6ed34b853b2c5ab2181fd383",
+			"0x096c6630e821816d9f4bd83fbe0ccfd223282f34aae5a49f969ba30b98c324c3",
+			"0xd3eec9dedb057fbc839c474fc99cb54d89f3f47d896e06e758c98f1cd194b61f",
+			"0x0d44cb2a83b9a3fa18daac280cf08b46cc637d705488fd9400cd7300475d0a1c",
+			"0x2e37a3036db99c4cb1c135f5ca6b527fa13b2e80ee421805b7be5d8b16983602",
+			"0x381e0ca505308b7d3a083e60b0f9cb44c89f84942430ec9e4c5571796ab6a8eb",
+			"0x90b04d35906c6f5a59c266c3bce7c2b63cea1486f714e272592ef9ecab25b0ee",
+			"0x9cbea70e760f2ee97537d058d57f395886a2c3a6e769ccd3433b797b8716517b",
+			"0x4e2167846e8d6f0f6495b5f1443f59bea143b63f242e40186fc6429434d1136e",
+			"0xcaa0512739d000bb9783fceb46d0427098886e2b7f2e1140855f1a91f843d5b3",
+			"0xc14df4e379e84591f618e60b5953aa6764146c7822aa1f0e3c2287e20753985a",
+			"0xf4443154c04fd378b2c3812fee84b774b37d6e12778674403fb5c995379df866",
+			"0x1a501c2733cc138fb6ff3716899e08dbcd4d75edc18af8972e8a749e45eaf67a",
+			"0xfc8cb80bb0d0fb490f29aae3067641eef72e9225c558e7e299e0796a2086969d",
+			"0x2b7895550febf03070485c02d521e7ddd80b94b7fe33a60b7d7ea3545b13e7dd",
+			"0xfc4137c3cccd45050b5770a40b2f38c43c62b70b07d17bb6d762b405f3d753dc",
+			"0x86ed22bbbb9fc6600112b91601af4fff56d0ecbe9b3099f91d4477cab8e300f5",
+			"0x2273a60405ffb04bd024d880c79010f18d58e3c8ca0dc82795a0125364679fa6",
+			"0x00dfbfe7be3bb2116d9a603a01ac428c0088a2c1477810cd5d3be0d1bd86beab",
+			"0x7acfb03315585c79e2a47dbe847d24cab0785791f6af7f179fea4f9d6ecb0e0f",
+			"0xbf6a2e20ee1da5eec12b792bbaec2531e20766ba54bac423011c1057215851db",
+			"0xb5e94d1e3ba7363d1d79fb62dedd0b6c26b0485052dd64a7093d41ad2d41b890",
+			"0x9b0cc26f08708814960de8f280ac26d8ed5089a19bcbd2d765059306da22c196",
+			"0x22d8af121d3e395d3cb4f6ee43c06e6292f1b5ffda672d2e40dba69a2885f5ac",
+			"0x04bc174272a57189d76aa17de0f76806e8481f4903575ed8c4df12b042637e0e",
+			"0x06ebd2b6ec4b80280969a92726df5f9cb12d4288b60af617b7040876116656d3",
+			"0x0e9430513e63b5173271c89b1c91af0b4818d5d14a3034e1228c56c94186a109",
+			"0x8dc5422ba98d9e58112b052a00d4b82b1db32e22dd7ff2d845619899bd47f277",
+			"0xde513d40bdbb1e4956b468cece598d77134626a900066b92fb2ecd6fcb5f81c2",
+			"0x90746299ec75af1eb444ad14ac666ee444aa020fac3fb57796516d8772ec8f45",
+			"0xaa91c30c62b24f943ee1eec7586b682289541c0355c2726e44424da8686ca24d",
+			"0x76eb68baae9fb7ed126097f93842dcadfe6e7188d61549d9c0922a9b3ef8e80a",
+			"0x5aa5b4045e7fe71559a6e93f4a89b135eaef38b9a7f3a84e383ab1ff902ceca9",
+			"0x504b78f8fc3646e9722e96a5e97d99f2560d4fa3337fa5faf1cc8c8a05f3520d",
+			"0xffd7a5d7c3b21e8144f7678a9ddc039cf85eb32b09000a600c9f12aa7d6083ed",
+			"0xcbb4010000e96ff0b50b9627dae032bd50782ccbd51af8af7cfcd6cd184675f7",
+			"0xb96fabbdd02371bf4a6a0dc00e3874cf43d47246e27163c910c141b6759a4249",
+			"0x7358419f4e994ff296a37f2e88b238b3de6ba73062073c9467dec52a2df64422",
+			"0xca90be9f190a1fd0548becfa719a6e4763e92de0e4da4283a33b5f7d2886b425",
+			"0xa629364f7d6329b008d9c6a0262327bcc12953aa515cdb7b8817e7fe1d746d46",
+			"0xc5167bd8cac1ea6d14f305c9d4fe075e1875d96353e5236473b6daca5ae9b4fe",
+			"0xaf4ce2490e9504172a4393cf14e691e947c86a0ec7b53416384a5832b213d6c5",
+			"0xbfa4853ef2eecc5d99a90e1abfef37ca10c1f823c1d0ad59a1bb19339861241f",
+			"0xbb5a6584cdc7e4d06ec5fc1514233cc42970f6c332c3a9590978dc9908e58c0a",
+			"0xe69d7a0766db411e504f09a8f39f0583b2869016bbe95f21dba432bbe8b88442",
+			"0x89cf4caaaf200881779f5fa6da8ae91ff1c962045dd0622b5ca65c830d3a9d4f",
+			"0x82d66c631f4c4167e5301d896dbdfe24d8245b1de041fc85eaeb6e35117ed9a0",
+			"0x957907bc93879681d8682a188622f9bf2c7d2595dbe3e2e34bb01711cc4124d1",
+			"0xccb3a3380550586696abd3ac267e85c7516b2b682b3c48f66aca94d57500f3b3",
+			"0xaf56d4650406e70748dc860a7879d8d522599081f8e7011056c976b860703e43",
+			"0x5d96ac1d2dff8a054d880a44f5d45a1bd18aba29085fcd633b0608351ff1876c",
+			"0xe051736dad8b9f93a8f1c13031c2b63249925e152685a2e7ec188ee089861b20",
+			"0x0db8987339e1fae41af5f08e6fa15da5fd80de3431b54e82cf8edbdc792f870e",
+			"0xcc99097678110af2be8dc07da8d642dce928b7d9e2728fe6fef1fe2eaa81a72a",
+			"0x2428c1f94ca57c7913b011a68281eee9ee4855e4ed2c97e34a370e649b21acb1",
+			"0x501ee9580c89b1f67c5b3b69ae5fd1f83852a2f9330f53565bcd04d8a7c0b776",
+			"0x16ae47cfa19e8046f93a579fa2557b17aeca7892fc7a82b6d539930c8b7c95c9",
+			"0xda62590043ca70c1cdfc7969cdfa853bddbcef0ef62aabb9f372805322511014",
+			"0x481b4aeaaa60504c94dcfea966840b381db85183c34cd25b4857300b5c189003",
+			"0x035dcc47f8670a9f648bcb0232e42fd4876243a7a3bf737b88d723ba187929a7",
+			"0xebe9bf09e3577865aeb341a06f67bb6e607f10b04ed9f9d733492a9d0e9ceb1a",
+			"0xad5d85b58af6aef7f81bd6b2407c6e4884ec82b2ae2aeaa24e379a3d35902375",
+			"0x0f0dd63d7c6c284659283825624140b31a3adaf7cdbb2255faca443e52ebfe84",
+			"0x40079be1c9394e95b4823895ed380d79333ca2085aed2abd0d766f84d21b7b42",
+			"0x7cc40ed01b436ce225a3f9c5c2bc7f6f81aee40bb83a54bca2fe899b15f3e2b6",
+			"0x1b6356e1a83ca5b0eefda1fd62fa959b118d2a19a6a90f182a53414b3fc7f9f0",
+			"0xae4a71712cc96a5b30b45e3b92c339c2e975e4ed683f4d1fcadcdc121ff7c6bf",
+			"0x226f6d8c71ec32c5eaab6b01c0fc1d00ae95e60b383d09560e90549b79eb1447",
+			"0xf3dec779841c9384df93bcefbba8700a292b570b29d286a7c9c5a442b4788a20",
+			"0x63ef48e80efa45383857adcb0f31076393260cbad058d1938345ad13faae50b4"
 		]
 	},
 	"nodes": [

ethcore/res/ethereum/frontier_like_test.json

@@ -143,7 +143,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {

ethcore/res/ethereum/frontier_test.json

@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {

ethcore/res/ethereum/homestead_test.json

@@ -19,7 +19,6 @@
 		"minGasLimit": "0x1388",
 		"networkID" : "0x1",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff",
 		"eip150Transition": "0x7fffffffffffffff",
 		"eip160Transition": "0x7fffffffffffffff",

ethcore/res/ethereum/kovan.json

@@ -19,7 +19,7 @@
 						"0x00a0a24b9f0e5ec7aa4c7389b8302fd0123194de"
 					]
 				},
-				"validateScoreTransition": 1000000,
+				"validateScoreTransition": 4301764,
 				"validateStepTransition": 1500000,
 				"maximumUncleCountTransition": 5067000,
 				"maximumUncleCount": 0
@@ -43,7 +43,13 @@
 		"eip211Transition": 5067000,
 		"eip214Transition": 5067000,
 		"eip658Transition": 5067000,
-		"wasmActivationTransition": 6600000
+		"wasmActivationTransition": 6600000,
+		"eip145Transition": 9200000,
+		"eip1014Transition": 9200000,
+		"eip1052Transition": 9200000,
+		"eip1283Transition": 9200000,
+		"kip4Transition": 9200000,
+		"kip6Transition": 9200000
 	},
 	"genesis": {
 		"seal": {
@@ -56,8 +62,8 @@
 		"gasLimit": "0x5B8D80"
 	},
 	"hardcodedSync": {
-		"header": "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",
-		"totalDifficulty": "2566410291882451733317698215999610733750372193",
+		"header": "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",
+		"totalDifficulty": "3020091077015059097853315484608800838133866777",
 		"CHTs": [
 			"0xdb9557458495268ddd69409fc1f66631ed5ff9bf6c479be6eabe5d83a460acac",
 			"0xd413800c22172be6e0b7a36348c90098955991f119ddad32c5b928e8db4deb02",
@@ -3813,7 +3819,658 @@
 			"0x5d71aff2a12d4f1d05c7f760d07b417a39eb0eaa72a01333befc6a2eb6b7d72a",
 			"0x8dd7de9195d2852aeb6812638ba22e73ff5ca0a8ad921c6e924cae1dd5952255",
 			"0x8f1828b4cdc6c38c112b1ffee7790953112dd2225ec82581a5095e5ae4d71cae",
-			"0xfeac88ae6c8529e87a55a259f475b7d162d01e8fa5f36c90d4665dd6105b1743"
+			"0xfeac88ae6c8529e87a55a259f475b7d162d01e8fa5f36c90d4665dd6105b1743",
+			"0x2e37011bd97c6e8a24e130fdc2c60c39b14ab3eb426a4f654bf3158a19aca88b",
+			"0xdb59b565de21902c50e2e204374ae1ce487656eb74145c103a86707b45a63eaf",
+			"0xf75c26a7214acf2d050ff5c7cc8b76e1a90540410b5c8b2bc9edbfe8fb2268e6",
+			"0x6ca7554f2abfd22951bec80f9d280abb6f060dde4a9a829ff7a0457d67a99edd",
+			"0x0324bceb8b61fa7092396764d7e1933697806c6d785446e3bbab3fc3be0ab259",
+			"0xeb4880f177e3e673f8ee04be1451a38bd8a2c0bac681d82a19327ae2d9769d32",
+			"0xec6a868cd9fba9e4f5b0d4276f44aee71056fbb7f425f717d0ce9d1fa5442ded",
+			"0xdc12b36d165eae197487ec930e35489545d2867b6fb9f8604d279337b6a8f949",
+			"0xcf1241b1c9b054df34638e99447bb0359aa01ad13c38650b872f2d727e6f68f6",
+			"0x713765e9b76c73c2de58c480600a7125972246fdcce2324993cd6bbe49cce67f",
+			"0x81e096e97dd8bf1d206d0ed41c9feaad24d344323ff74707112ee8fac218994e",
+			"0x8943c2246d5ae3e8db5fc012e9613642c6b713e5f2a89d00f09fa73246f88d5f",
+			"0x5b2d0bcbd893fab4e58d4ef698d1e8d3001799b61e758b7711f319e2b8eaa645",
+			"0xf3e4da2cf4579f52b7e4d632d93b79714487ef179a8f5d5c46af9154efad20fd",
+			"0xa2348ea2cd7a5a32779e9d292a9428fa475fae790f08e42f7699ef5eb2489188",
+			"0x62dd923966e02db7d0d27cfdd4aeac081f9827288c8b54d9f19035331a109f53",
+			"0xaa1aafa8f9d9d3e0668eff761fbfc2657d1e1906c077d93200ec000643c6c272",
+			"0xbf40cb21561989004434d6d908451d5b63045c89c2ac9b1eb617ec0054dc18be",
+			"0xdae53edbb07fe84623451da0e25da631ad3465e5bc12ef8fd8323c8a72f57130",
+			"0x685115b38f307f984c7c90e85d167d62b0ec2c924a0bca5f23b1cac12a8f72fa",
+			"0x2ad7e8f86c872504d7c2c48b0db141955d770acc84222fd725ffbd2dc4095b1d",
+			"0x9268b3b175aa6025b959b8fcdb416c39dd339e6f1fde3c427bd1bada36e4384c",
+			"0x502ee814cecc8454abb95591b0d07ed5170db94af7fda8878b9b4287fd68c9f8",
+			"0x6b19baf6b7eae36c0b1d2754645ff282fc2905802ca6394ac00bc22eb1582eb9",
+			"0xecad17ae39f897ab38850cac40480b4fafcafd6624f8fdfcaa69849f3fa101ec",
+			"0xb0804719b391b4b5f554a49f99df3a9d1c3a9884cefc268dcb27e3821aebe385",
+			"0x3018401c9a31f97881852c1bd65a964bfd3011659725c849a8de4b5ad8f26490",
+			"0x48a6b687e62a42dc44ecb56f4187e293d6f87d328b1edf409c8f2fa6568dfddc",
+			"0x8e3bc1ec926a68e22ed525485186a4d9160a54bd3e80107bb77c09911564effa",
+			"0xd7a7cce632e1746120476a3271ea09689380eb833d5538310fa0029f9174e0de",
+			"0x7bae074c51f3b547568d18e85b73fcb9b5f8040ed5f96f3523f53197150517a4",
+			"0x9ba39f376b9444dab04e0a52e4728ec842a0aa4880d9aa9819de3f0694f46e60",
+			"0x40a2b84bd3d05d28d51a39deae5f23b4f7370c70ac70d1cc81224eac4939d69f",
+			"0x2b9f57c8c43284ba929df8f896a966afbdd341f145b6b2b2fa98382950ad915d",
+			"0xcaf3d2a336cf17c9b2d7116a14e654bcece012b07bc020ac30feb71d7f6cead1",
+			"0xd3b68cf2337ca26a9c4bf6b6b286dc65bf66641d5e9c241f4c1b147994253ac5",
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+			"0x664c293680fb7c5a89ff3c31e81ec8d0c30a6274ef44e4e76bdb9bba83f3c0b3",
+			"0x44027fd23526685d920d37b032f912159e308286eaac018244006690b4191d4e",
+			"0x7ea934c3d75a9ecb6a2055dcd5feaf2d4c851eaf360a648d5d87ef40fba2fbd0",
+			"0xfd97fc801315e5be630ccb3dc983c409a58fc1fc307adc1e4a48fc60c89ea40f",
+			"0x15aa0c3c732a2c6684d521729dfeb93f62e22e155d85d20e5488e2c86b043142",
+			"0xba235420ac54100da28cd6f30ff64b8594e73c42f45ca8494fb3d3c4d66651a9",
+			"0x9948e8489cd94bed4b8e90a8bd35e01ffe38e7c077f587c6c1949caa99cc98e0",
+			"0xcf66ccdfa85655d7d4c94cffd41f499afdfa2bbddcdaac547223e6ac4d1f9cf1",
+			"0x7e5382881f710530720b420a3f3ac08211565ecc8fead8ec649cea11f9385c3d",
+			"0x104576fbb1760c16ce85c3e5757832d53bda83d618500ef677a6a192ff14a5fb",
+			"0x9e4689bb1ee34635e1106e38ca41833d2dbc1cfacb7635ede5761048a8637c7c",
+			"0xc8c7f7ac271015da443320f4af650fc71ea0914f4c41252a5b7ec76f329d5268",
+			"0x46a93ae992001a54119c8d27788e3ef8927dee0a9949b22ece0196a90932c1da",
+			"0xa69467f9944f1a5e3a46718a99d3cb14930cab6d971baa37bb774cc757e55c2b",
+			"0x33f7272fdbfb91428a1344df5867300e256fc3cc2e439c777c3feae1cb27b781",
+			"0x0aaa367f4c7f399edc64ac1754f47aa5c28b0fa208238276de6bd9e424021ce3",
+			"0xf5f363c3bfa4a23bf221951f4b53a77b27613938babe40f0832d05fdfd252233",
+			"0xec315af99bdfdcb3cab1f1dcaa5b42ef53f4e3fcf4d921578892a5896fa20e9c",
+			"0xb580a8e51e875446d7096a20801dded1f7e5b5fac9f47e9361dfc9dd80214013",
+			"0xb877df38d8f4cebdfb89f26868bdb97ef945da187b44e1cbeafc1d4b7059d713",
+			"0x78613b9d2d6b639a54ecf1d50a56af80560b436fa632ae636cf354d4a6dd4af8",
+			"0x80a9d0a5e43558f1d24256baa6940c0074fa84d4b8e7e236054943f9ad5fbe2b",
+			"0x60f79f699ba1a740c9784f2a8f1b652d4e695ad2d230b110472b95914fd35c8d",
+			"0xae20de288eb7362a36a1ff236faaed6ddaacf58783d098118bc9fe66b8780651",
+			"0xcd08003531d6094cabdbe4d971a01b41552784c246bd2a2f749ee9947d1394d6",
+			"0x676720accf739c380f64748390c1acd2f88d454539866f7326a517c9b629b545",
+			"0x086b71ac681c0ea369c16b22ca49753b2083ec25b46ba659206433eb060d98c3",
+			"0x78910ab7d67e67da722ad53b669d8c3a312de3cf362c6254c09581088e920acb",
+			"0x5bc6e98a830c114cb432091679ac5b3efd25c362d6f99585ce3a027dff95e524",
+			"0x8d0daff5a97327b615d1535fea44fa33610fd645d93035e1e5e2bb49d4dcef24",
+			"0xbb46662b884bc6676d98ebf3f2a35ff9190339b72d68520fe40100b4eafaa2a2",
+			"0x9aa8faaf935c95a60ffae0487844860084a963792ae0bb90a831f825339810ac",
+			"0xfd77b5d6b6b87bfb0ddcad7b0ed3992e5fe897b16db06b118230b2d292e317e9",
+			"0xc465a3384c694bc50cbe97ce9f3bc364884651a97a491f7f64e65dc319d1c9f0",
+			"0xc4634431867d7a302be79e83fb50d01df7f3b950aeede21fcb59b883399b06e4",
+			"0xfd524c29525cb97a89026ff68048ca6e2a9f522791eadd74447a6c278151d7df",
+			"0xc7df516c295a58cf4cd5614eee3d2f773a412dcd4926eadad7e935ecae6d8907",
+			"0xfb915abde0108d6e84354e21a513fa564f5201277e060bb916a9153537fba1f7",
+			"0x1d3c6a780f1b259e096f4a141ab83cb6bd035407421e2468e743daec211e536f",
+			"0xb2f47534f060c70f61a7c16f920d0e11b957bb3ef912ed9292f35b8ceda2acea",
+			"0x03e0ebe6e9992f6921362d463b68f91518d91079c001c6bea7b3452879fdc29c",
+			"0xd9a7de173a1617ad813a554a56d7c7d2f010ac78d7782e524b35b5c676cb72dc",
+			"0x90d05d99167e53d34a02c5b66ed6920190370656905465f20efe56499aa0ba6b",
+			"0x17702606dc895aae35aef034fddf8f7235efcc66e5c9d252347063209c2177b0",
+			"0x3c416492193d81fc03b5c1964989a314e5ee6d689c638c996f6761b4d7acd6be",
+			"0x3c6c1162ea9b277f831989ea26e14bb23ce4d72bb9c865e354992559266ceb16",
+			"0x96de93f849613bb2ffc117bf111d4798b9252649f94f21187da324a3fe363833",
+			"0x91e50fc6e564cb9d6b7aab3a6e93f6b32944d5a781196a9a8b12ac7f6f527565",
+			"0xdbefa2bb2ee620d75295d0f3103e06b428f955dba1a792421e435051c46f7933",
+			"0x78f29df98ef7dce9fe7b4414da90fb4df5d99231ab0a3b7a3e70659986580fe4",
+			"0x56cf56899c2388d55eb1496ccbe62041d14cf655c9dbc53984d86c22ed281acd",
+			"0x099f52c675171088550a9e93e1ab17f003190fa3388d956724d422e5925c4813",
+			"0x9913e4ad8405b8a60fa512fb616c544c6cdc415cb1023aad0669d58cc3810161",
+			"0xbf5d51369b2510bb57f8fc8e9342890e8bb37049079dc79ab97afc0bcbf3cbf2",
+			"0x3a012d45d250c818b641fb18b71b622f5bdf0b7a541e0d8de54f61e516ee3ce7",
+			"0x0233833414d2cff3da0326f7baccf1bd522db5fee290ab4fc0a976934a20358e",
+			"0x38a0978c955f20cdc32e2013a5373efbfc50924e45e9c4c756291a903f4162b4",
+			"0x4107f33a14052662a0469ddd646ab6659006df131c4b0f6b0e6cfd331b46fea2",
+			"0x8074fb5054c755c912bc68b1dc22ae40ba13c06912c8af1c12652eb4d84c6503",
+			"0xf6d151b8f9c26c3a31366d967dd7338e80e8107b9b81da0a98faf16df9cbc91a",
+			"0xcebb0256d0a8a4b22d2341ec7c48292c3226caf4aeaa2003ee36dde25cff833b",
+			"0x5fa9ac499a2642b0cb7ca365062c02588f9c555bcdf584f533ee8e8544b9928d",
+			"0x800c7f04db30247318b8d4c11d575dca66bf615674fbeb9e8c20f387d907c8e2",
+			"0xb0a43de06c9d48afefd5411d759e3c6293cbea4a7c6d862b119182ea02af81b7",
+			"0xb6e7ca0075d28959cf87d716fea885e9e3a0062fc7da1b6e06089c808a632b8a",
+			"0x734c1b19f0b5972b5215f675cf60c68c12cf6d6bda7b5a95ee9a781482e68365",
+			"0x1995b08fffb20dedbef592ac23a81d87129ceb396e065265dd4a6cb876beaf09",
+			"0x051082047a6b579684b5444ce5b75bc630277ec06b0087779387b9d7fcd18fec",
+			"0x4aabfe145c368e6878e2ccbdfbecf2f1db5c9078650696bb3a584c14fe17177f",
+			"0x42811ab68b304ce30fe896c52b53d861abc3c8b5e4e740fa97b1695db9a6691f",
+			"0xd90cdb12ad64f86b2aa7afb781c00301f50206b05f1543b111c2b971ed209c94",
+			"0x385435507c2ef42b5f1760b97497e8a02a4b5ec4926c3cce8569fc0f4be59ce8",
+			"0x2d7a4908350c9cf022920cc51e0cad9c3c05d1d14a92d72310b52f984c857101",
+			"0xceea9c58106f4f806a256f64dc04e1c4b53e6cc5eb048f3df7a14f8de3506e96",
+			"0x7032f864eb3eae8d198c3f8edd9cc2dfe88b9971cd01b33318dcba004f9b044b",
+			"0x71bfeb4c183b20fba60e225524c809b0864fa14f5c0137accc36649ed0712e5c",
+			"0xef0ec5a2761c46827110c20e14fc4aecadc2407541ea046de09a58cda3b2e839",
+			"0x5e6debf328055c9413fc3eeca28583f917b361a5b5bda9af4306929931a4116a",
+			"0x1aab81df07eab969189333e5b2930fcc1b88a525ec5bc6af6626fdcb202b8f34",
+			"0xbdbf97e1558711d4872821b9400e03a811c61096bb838d3126b1c2154f8fb776",
+			"0x7d8aaee482933ffaa97777af3e4bf69ce7d99afb24e546d2e365d445d3d0190d",
+			"0x9da421621b14164582b2b877090c9a956f3a7c917031bf743a9ce457b6292369",
+			"0x050d717f0433a72b17a0e9a1340f26aed5bf17f90c08a5b73e675860ac9c24de",
+			"0x80551d3ff835aaf987b9ec056a73a3890985ef551431daa9d4aca10c81cac7fd",
+			"0x625a5b5aed2660d32d2fd8c4d1bfc248365a5cddaf9b5695e3f131629739ec60",
+			"0x7d86bc2dc5914d16b3d0d882a5db0230b4b688cbd8c81098d2efc5080e589646",
+			"0xfe42cd832cdffe56426031ba7d837c56d86be72b89ca9f5474bd08db80cfe903",
+			"0x0ca30e1fd3bf3e16a0e295ecbb442757248b2ad47baf88fc37d6c55901e709f6",
+			"0x2a83ed111b99844e17fb7aa69854525958255ffea04e0bfdc365264e72b349db",
+			"0x709779de19590b69864f5b9228b3a1c334724e20be006ef5ae38f8c05eb6f37e",
+			"0xf09c664d0e2e88ad5418d14481fefdc9e9c46158bc5439ffe0bf6d6d5ecb2eda",
+			"0xf350785dd3617ef73b0a5bf439ce5c49adca0c041b6b5047a664e5e33967ddf7",
+			"0x8fcf87571154dc4eb0a73c6ee31cc0db5f4e064cf23a255a408b2f2c7cc9c0e9",
+			"0x75801fc8867ce7c75b3148c6c022d7702143b93d93c1fc2349e3e969d0179cae",
+			"0xf14c18bf68ae881d3fb07f631340b00557a83860d0ba0efbfe55fe199176aff6",
+			"0xbe48c727fb6a32242229eaa09146c76522dcf6bed6d1c6fc1bebf86b5e4ccdb4",
+			"0x8487b971e383272df82cd812a0bf3a2026b85bc3897b4ce9ce48afa00849fe00",
+			"0x60d18b465172f59c0d71594b5273a90cb41db24a5d4c9fc37020f9d8c467a4a2",
+			"0xab4e36d9f17c748c87d89c23b667e3f4e3265e77b62dbd9c92659026f8a53d12"
 		]
 	},
 	"accounts": {

ethcore/res/ethereum/mcip3_test.json

@@ -33,7 +33,6 @@
 		"eip160Transition":"0x7fffffffffffff",
 		"eip161abcTransition":"0x7fffffffffffff",
 		"eip161dTransition":"0x7fffffffffffff",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x7fffffffffffff",
 		"eip155Transition":"0x7fffffffffffff",

ethcore/res/ethereum/mcip6_byz.json

@@ -33,7 +33,6 @@
 		"eip160Transition":"0x7fffffffffffff",
 		"eip161abcTransition":"0x7fffffffffffff",
 		"eip161dTransition":"0x7fffffffffffff",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x2a",
 		"eip155Transition":"0x2a",

ethcore/res/ethereum/morden.json

@@ -31,8 +31,7 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": 1915000,
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {

ethcore/res/ethereum/musicoin.json

@@ -33,7 +33,6 @@
 		"eip160Transition":"0x21e88e",
 		"eip161abcTransition":"0x21e88e",
 		"eip161dTransition":"0x21e88e",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x21e88e",
 		"eip155Transition":"0x21e88e",

ethcore/res/ethereum/olympic.json

@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {

ethcore/res/ethereum/ropsten.json

@@ -9,9 +9,11 @@
 				"durationLimit": "0x0d",
 				"blockReward": "0x4563918244F40000",
 				"homesteadTransition": 0,
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": 1700000,
-				"eip649Transition": 1700000
+				"eip649Transition": 1700000,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"eip1234Transition": 4230000,
+				"eip1234Reward": "0x1BC16D674EC80000"
 			}
 		}
 	},
@@ -22,8 +24,8 @@
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x3",
-		"forkBlock": 3383558,
-		"forkCanonHash": "0x6b4b80d65951375a70bc1ecf9a270d152dd355454d57869abbae2e42c213e0f3",
+		"forkBlock": "0x40E80F",
+		"forkCanonHash": "0x3e12d5c0f8d63fbc5831cc7f7273bd824fa4d0a9a4102d65d99a7ea5604abc00",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": 10,
 		"eip150Transition": 0,
@@ -32,11 +34,14 @@
 		"eip161dTransition": 10,
 		"eip155Transition": 10,
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip140Transition": 1700000,
 		"eip211Transition": 1700000,
 		"eip214Transition": 1700000,
-		"eip658Transition": 1700000
+		"eip658Transition": 1700000,
+		"eip145Transition": 4230000,
+		"eip1014Transition": 4230000,
+		"eip1052Transition": 4230000,
+		"eip1283Transition": 4230000
 	},
 	"genesis": {
 		"seal": {
@@ -52,9 +57,9 @@
 		"extraData": "0x3535353535353535353535353535353535353535353535353535353535353535",
 		"gasLimit": "0x1000000"
 	},
-	"hardcodedSync": {
-		"header": "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",
-		"totalDifficulty": "8635599198809021",
+	"hardcodedSync":{
+		"header": "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",
+		"totalDifficulty": "12027449412394243",
 		"CHTs": [
 			"0x614648fc0a459451850bdfe353a932b5ff824e1b568478394f78b3ed5427e37a",
 			"0x1eae561c582dbb7f4e041998e084e165d0332c915d3a6da367638a8d24f3fafc",
@@ -1747,7 +1752,367 @@
 			"0x8baa0703e1a050c40f85dc850fe477881f432c951b1cc1b2b71ffb68ab7fe0d7",
 			"0x14ca94dfd343548e32ef5659c043d6e28f0e577fd38da1ee12f11c08e281d775",
 			"0xef25357970c76a8b72a6e52f49bc30651f711c7df70444d4667e80febc0e3b2a",
-			"0x41b8b4ebd5919dad3bc609ded524b97403d88f019367f0f4f622561131644ffb"
+			"0x41b8b4ebd5919dad3bc609ded524b97403d88f019367f0f4f622561131644ffb",
+			"0xb29a8ad1157621d0120aedbd8dfeb4b318979bd43a5b018bf7b9ce33d85da312",
+			"0x9ddf78b5d67ef40454867ed33de83a01cbd8c18fe09da3d9f991a196811dfccd",
+			"0x3604121f9cfbb5cf552cf8bfc9a7958332eb97131158e4f40f4eda481e553991",
+			"0xf1778830f694720a6f990f9d476b0f365e8a74880253b55ee16f5cbd6c8082a4",
+			"0x89831626d154fbe84a4c62c3e2638cd00e42b3844c7c7b98cfad113abdbc5347",
+			"0x650573f5ef274b2aeb40642e25fbd661cb0eff66245d7cc8f6fb9e9daa80fc12",
+			"0x479f6c652173efe94abaa850bffe1557847b26f286467013a4d72973e05e8e54",
+			"0x7096619d5716c34592ac2d9907ac28a74c6f6b1ebb1962a0217df82bf3e714d4",
+			"0xb7c7edbd8ae7eed58e973dc0750adfd04042ed56baabf372b111fce3e4b4469a",
+			"0x25529b597bd15317e55767b3fbfecad0657aaeda99f098186b41b70811f7af2a",
+			"0xd790747b09f925fd155b7bbdb5ccd89d873277163e4fe7054bbf71c0b26b8072",
+			"0x3aa0b221d1c4743a06692f645f38a8128d55f1c07cfa6e9711b0d2e0f2e0e738",
+			"0x26fb5017218cbe4250d2ceae751e99b9a34d7befa162dc248ac008c5d1221e71",
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+			"0x40384a52564fae5df8c3e41827cdf584e38f3f555a54ca749b7b516619071d85",
+			"0xe52f7c17a4106594563ae7b724e5613e87d8442177f39a36b946b0e335be0e5b",
+			"0x7726202a7c255a9d7be47af6f3b44c1e379cda61237866554396fb6ec043482c",
+			"0x665da353f296cde80e3cbcb9c7f93b107d5676e5cd694b0bd33334d74789beb9"
 		]
 	},
 	"nodes": [

ethcore/res/ethereum/social.json

@@ -27,8 +27,7 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": "0x0",
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {

ethcore/res/ethereum/tests

@@ -1 +1 @@
-Subproject commit b6011c3fb567d7178915574de0a8d4b5331fe725
+Subproject commit 3f5febc901913ef698f1b09dda8705babd729e4a

ethcore/res/ethereum/tests-issues/currents.json

@@ -0,0 +1,468 @@
+{ "block":
+	[
+		{
+			"reference": "9590",
+			"failing": "stCreateTest",
+			"subtests": [
+				"CreateOOGafterInitCodeReturndata2_d0g1v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2",
+			"subtests": [
+				"RevertDepthCreateAddressCollision_d0g1v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g1v1_Constantinople",
+				"CREATE2_Suicide_d5g0v0_Constantinople",
+				"CREATE2_Suicide_d7g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d2g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d2g0v0_Constantinople",
+				"create2collisionNonce_d1g0v0_Byzantium",
+				"create2collisionNonce_d1g0v0_Constantinople",
+				"CreateMessageRevertedOOGInInit_d0g1v0_Constantinople",
+				"create2callPrecompiles_d3g0v0_Constantinople",
+				"create2collisionCode_d1g0v0_Byzantium",
+				"create2collisionCode_d1g0v0_Constantinople",
+				"create2collisionStorage_d0g0v0_Byzantium",
+				"create2collisionStorage_d0g0v0_Constantinople",
+				"create2callPrecompiles_d4g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d0g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d0g0v0_Constantinople",
+				"CreateMessageReverted_d0g1v0_Constantinople",
+				"RevertOpcodeCreate_d0g1v0_Constantinople",
+				"CREATE2_Suicide_d11g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d5g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d1g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d1g0v0_Constantinople",
+				"returndatacopy_following_create_d1g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g1v1_Constantinople",
+				"create2collisionSelfdestructed_d2g0v0_Byzantium",
+				"create2collisionSelfdestructed_d2g0v0_Constantinople",
+				"create2callPrecompiles_d2g0v0_Constantinople",
+				"create2InitCodes_d2g0v0_Constantinople",
+				"create2collisionNonce_d2g0v0_Byzantium",
+				"create2collisionNonce_d2g0v0_Constantinople",
+				"create2collisionCode_d0g0v0_Byzantium",
+				"create2collisionCode_d0g0v0_Constantinople",
+				"CREATE2_Bounds_d0g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d1g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g1v0_Constantinople",
+				"create2collisionStorage_d2g0v0_Byzantium",
+				"create2collisionStorage_d2g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g0v1_Constantinople",
+				"create2callPrecompiles_d5g0v0_Constantinople",
+				"create2collisionCode2_d0g0v0_Byzantium",
+				"create2collisionCode2_d0g0v0_Constantinople",
+				"create2noCash_d0g0v0_Byzantium",
+				"create2noCash_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d7g0v0_Constantinople",
+				"create2SmartInitCode_d1g0v0_Constantinople",
+				"create2InitCodes_d6g0v0_Constantinople",
+				"create2noCash_d1g0v0_Byzantium",
+				"create2noCash_d1g0v0_Constantinople",
+				"CREATE2_ContractSuicideDuringInit_ThenStoreThenReturn_d0g0v0_Constantinople",
+				"RevertOpcodeInCreateReturns_d0g0v0_Constantinople",
+				"create2collisionStorage_d1g0v0_Byzantium",
+				"create2collisionStorage_d1g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d3g0v0_Constantinople",
+				"create2collisionBalance_d0g0v0_Byzantium",
+				"create2collisionBalance_d0g0v0_Constantinople",
+				"create2collisionSelfdestructed2_d0g0v0_Constantinople",
+				"create2InitCodes_d3g0v0_Constantinople",
+				"create2collisionCode2_d1g0v0_Byzantium",
+				"create2collisionCode2_d1g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d1g0v0_Constantinople",
+				"create2collisionBalance_d1g0v0_Byzantium",
+				"create2collisionBalance_d1g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g2v0_Constantinople",
+				"create2callPrecompiles_d6g0v0_Constantinople",
+				"Create2Recursive_d0g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d0g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d3g0v0_Constantinople",
+				"returndatacopy_following_create_d0g0v0_Constantinople",
+				"create2InitCodes_d8g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g0v1_Constantinople",
+				"create2checkFieldsInInitcode_d2g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g0v1_Constantinople",
+				"Create2OnDepth1024_d0g0v0_Constantinople",
+				"create2collisionSelfdestructed2_d1g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d2g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d2g0v0_Constantinople",
+				"create2callPrecompiles_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g1v1_Constantinople",
+				"create2collisionSelfdestructed_d1g0v0_Byzantium",
+				"create2collisionSelfdestructed_d1g0v0_Constantinople",
+				"call_outsize_then_create2_successful_then_returndatasize_d0g0v0_Byzantium",
+				"call_outsize_then_create2_successful_then_returndatasize_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeRevert_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata3_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndataSize_d0g0v0_Constantinople",
+				"create2InitCodes_d7g0v0_Constantinople",
+				"CREATE2_Suicide_d10g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g1v0_Constantinople",
+				"create2InitCodes_d5g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d1g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d1g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g1v0_Constantinople",
+				"create2collisionSelfdestructed_d0g0v0_Byzantium",
+				"create2collisionSelfdestructed_d0g0v0_Constantinople",
+				"create2noCash_d2g0v0_Byzantium",
+				"create2noCash_d2g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g0v0_Constantinople",
+				"create2collisionNonce_d0g0v0_Byzantium",
+				"create2collisionNonce_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d2g0v0_Constantinople",
+				"Create2OOGafterInitCode_d0g0v0_Constantinople",
+				"call_then_create2_successful_then_returndatasize_d0g0v0_Byzantium",
+				"call_then_create2_successful_then_returndatasize_d0g0v0_Constantinople",
+				"create2collisionBalance_d2g0v0_Byzantium",
+				"create2collisionBalance_d2g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d6g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g1v1_Constantinople",
+				"returndatacopy_afterFailing_create_d0g0v0_Constantinople",
+				"returndatacopy_following_revert_in_create_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d9g0v0_Constantinople",
+				"create2callPrecompiles_d7g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g0v1_Constantinople",
+				"create2InitCodes_d1g0v0_Constantinople",
+				"CREATE2_Bounds_d0g1v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d4g0v0_Constantinople",
+				"CreateMessageRevertedOOGInInit_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g1v0_Constantinople",
+				"returndatacopy_following_successful_create_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d0g0v0_Constantinople",
+				"CreateMessageReverted_d0g0v0_Constantinople",
+				"create2SmartInitCode_d0g0v0_Constantinople",
+				"CREATE2_Bounds2_d0g0v0_Constantinople",
+				"returndatasize_following_successful_create_d0g0v0_Constantinople",
+				"CREATE2_Bounds2_d0g1v0_Constantinople",
+				"returndatacopy_0_0_following_successful_create_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d0g0v0_Constantinople",
+				"create2InitCodes_d0g0v0_Constantinople",
+				"Create2OnDepth1023_d0g0v0_Constantinople",
+				"create2InitCodes_d4g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata2_d0g0v0_Constantinople",
+				"create2collisionBalance_d3g0v0_Byzantium",
+				"create2collisionBalance_d3g0v0_Constantinople",
+				"CREATE2_Suicide_d4g0v0_Constantinople",
+				"Create2OOGafterInitCode_d0g1v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g0v0_Constantinople",
+				"Create2OOGafterInitCodeRevert2_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata_d0g1v0_Constantinople",
+				"Create2Recursive_d0g1v0_Constantinople",
+				"create2collisionCode_d2g0v0_Byzantium",
+				"create2collisionCode_d2g0v0_Constantinople",
+				"CREATE2_Suicide_d6g0v0_Constantinople",
+				"CREATE2_Suicide_d8g0v0_Constantinople",
+				"RevertOpcodeCreate_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata2_d0g1v0_Constantinople",
+				"create2callPrecompiles_d1g0v0_Constantinople",
+				"RevertInCreateInInit_d0g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g0v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "bcStateTest",
+			"subtests": [
+				"suicideStorageCheck_Byzantium",
+				"suicideStorageCheck_Constantinople",
+				"suicideStorageCheckVCreate2_Byzantium",
+				"suicideStorageCheckVCreate2_Constantinople",
+				"create2collisionwithSelfdestructSameBlock_Constantinople",
+				"blockhashNonConstArg_Constantinople",
+				"suicideThenCheckBalance_Constantinople",
+				"suicideThenCheckBalance_Homestead",
+				"suicideStorageCheckVCreate_Byzantium",
+				"suicideStorageCheckVCreate_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stEIP158Specific",
+			"subtests": [
+				"callToEmptyThenCallError_d0g0v0_Byzantium",
+				"callToEmptyThenCallError_d0g0v0_Constantinople",
+				"callToEmptyThenCallError_d0g0v0_EIP158"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stPreCompiledContracts",
+			"subtests": [
+				"identity_to_smaller_d0g0v0_Constantinople",
+				"identity_to_bigger_d0g0v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stReturnDataTest",
+			"subtests": [
+				"modexp_modsize0_returndatasize_d0g1v0_Constantinople",
+				"modexp_modsize0_returndatasize_d0g2v0_Constantinople",
+				"modexp_modsize0_returndatasize_d0g3v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stSpecialTest",
+			"subtests": [
+				"push32withoutByte_d0g0v0_Constantinople"
+			]
+		}
+
+	],
+	"state":
+	[
+		{
+			"reference": "9590",
+			"failing": "stCreateTest",
+			"subtests": {
+				"CreateOOGafterInitCodeReturndata2": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2Test",
+			"subtests": {
+				"RevertInCreateInInit": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stEIP150Specific",
+			"subtests": {
+				"NewGasPriceForCodes": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stInitCodeTest",
+			"subtests": {
+				"OutOfGasContractCreation": {
+					"subnumbers": ["4"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stPreCompiledContracts",
+			"subtests": {
+				"modexp": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stRevertTest",
+			"subtests": {
+				"LoopCallsDepthThenRevert3": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeCreate": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertSubCallStorageOOG2": {
+					"subnumbers": ["1","3"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepthCreateOOG": {
+					"subnumbers": ["3","4"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeMultipleSubCalls": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeDirectCall": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"LoopCallsDepthThenRevert2": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepth2": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertRemoteSubCallStorageOOG2": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepthCreateAddressCollision": {
+					"subnumbers": ["3","4"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stStaticCall",
+			"subtests": {
+				"static_RevertDepth2": {
+					"subnumbers": ["1","3"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes4": {
+					"subnumbers": ["3"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes3": {
+					"subnumbers": ["5","6","7","8"],
+					"chain": "Constantinople (test)"
+				},
+				"static_callBasic": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes2": {
+					"subnumbers": ["5","6","7","8"],
+					"chain": "Constantinople (test)"
+				},
+				"static_callCreate": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "https://github.com/ethereum/tests/issues/512",
+			"failing": "stZeroKnowledge",
+			"subtests": {
+				"pointAddTrunc": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointAdd": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointMulAdd": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointMulAdd2": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2Test",
+			"subtests": {
+				"call_then_create2_successful_then_returndatasize": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_afterFailing_create": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"create2checkFieldsInInitcode": {
+					"subnumbers": ["1","2","3","5","6","7"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2Recursive": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionBalance": {
+					"subnumbers": ["2","3"],
+					"chain": "Constantinople (test)"
+				},
+				"create2InitCodes": {
+					"subnumbers": ["1","5","6","7","8","9"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCode": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"CreateMessageRevertedOOGInInit": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_following_revert_in_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionSelfdestructed": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_0_0_following_successful_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OnDepth1023": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCodeReturndata2": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeInCreateReturns": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"CREATE2_ContractSuicideDuringInit_ThenStoreThenReturn": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatasize_following_successful_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"call_outsize_then_create2_successful_then_returndatasize": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"CreateMessageReverted": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"CREATE2_Suicide": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCodeRevert": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OnDepth1024": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionStorage": {
+					"subnumbers": ["2","3"],
+					"chain": "Constantinople (test)"
+				},
+				"create2callPrecompiles": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		}
+	]
+}

ethcore/res/ethereum/tobalaba.json

@@ -16,7 +16,16 @@
 		"gasLimitBoundDivisor": "0x400",
 		"minGasLimit": "0x1388",
 		"networkID": "0x62121",
-		"wasmActivationTransition": 4000000
+		"wasmActivationTransition": 7250000,
+		"eip140Transition": 7250000,
+		"eip211Transition": 7250000,
+		"eip214Transition": 7250000,
+		"eip658Transition": 7250000,
+
+		"maxCodeSize": 24576,
+		"maxCodeSizeTransition": 7250000,
+
+		"registrar": "0xb8624dc8cb3ca3147c178ac4c21734eb49e04071"
 	},
 	"genesis": {
 		"seal": {
@@ -43,12 +52,22 @@
 		},
 		"0x4ba15b56452521c0826a35a6f2022e1210fc519b": {
 			"balance": "0x7E37BE2022B2B09472D89C0000"
-		}
+		},
+
+		"0x0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "activate_at": 7250000, "pricing": { "linear": { "base": 3000, "word": 0 } } } },
+		"0x0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "activate_at": 7250000, "pricing": { "linear": { "base": 60, "word": 12 } } } },
+		"0x0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "activate_at": 7250000, "pricing": { "linear": { "base": 600, "word": 120 } } } },
+		"0x0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "activate_at": 7250000, "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"0x0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": 7250000, "pricing": { "modexp": { "divisor": 20 } } } },
+		"0x0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": 7250000, "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0x0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": 7250000, "pricing": { "linear": { "base": 40000, "word": 0 } } } },
+		"0x0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": 7250000, "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
 	},
+
 	"nodes": [
-		"enode://147573f46fe9f5cc38fbe070089a31390baec5dd2827c8f2ef168833e4d0254fbee3969a02c5b9910ea5d5b23d86a6ed5eabcda17cc12007b7d9178b6c697aa5@37.120.168.56:30303",
-		"enode://a370d5fd55959f20af6d1565b151a760c1372f5a2aaf674d4892cd4fd2de0d1f672781cd40e0d4e4b51c5823527ddec73b31cc14ac685449d9f0866996a16b9f@13.76.165.180:30303",
-		"enode://da019fa5fb1fda105100d68a986938ec15ac5c6ff69d6e4ad3e350e377057f3e67e33aea5feb22d5cdcfc22041d141c8453c77baa64a216fff98f191ca76b3ec@18.220.108.238:30303",
-		"enode://49498fb8cdcd79c813ccdaa9496a3a4be0a187a3183e99adbc04d9c90b9a62ad59f0b6832f6e43b48e63fbebf74ec5438eb0d6d9098330edf36413d276fedf81@13.80.148.117:30303"
+		"enode://eda34244538d72f42605a6fc8b8a34b15714c683989e8b29dc9e7a2b2088da490a5b32f2c149bec5a5c482bf03ec2c4f38b833ae31e36fcb26fb05fd094b2a88@18.197.33.9:30303",
+		"enode://12e903e900137b02b22e01f7918bd6e7310773c313e4e577281f35597e394a3e0b54c7314a8970a9776c5a3e5dc4daee289215dea3897bcb6d5cf0bb1dd2d356@18.197.31.231:30303",
+		"enode://423fdb91b37ec0714af0c19f625ec4af3ada2844367a36e45a05703577a84f7f0e9483585d4950a35c9e3738dba8c6abd7e1ce278d9a1f3f28065bc009f409cd@52.221.203.209:30303",
+		"enode://a9327d37d07799817d4a3e13d49fb4f5cc1486d4adf3ec8a6b98be62c4d7a5453914a5139dbe124809a388514cb0be37f9fa799539abe2250672f6d3d778b821@18.191.209.251:30303"
 	]
 }

ethcore/res/instant_seal.json

@@ -16,7 +16,6 @@
 		"eip161dTransition": "0x0",
 		"eip155Transition": "0x0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x0",
 		"eip140Transition": "0x0",

ethcore/res/null.json

@@ -11,7 +11,6 @@
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x2",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip140Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",

ethcore/res/wasm-tests

@@ -1 +1 @@
-Subproject commit 474110de59a0f632b20615256c913b144c49354c
+Subproject commit 0edbf860ff7ed4b6b6336097ba44836e8c6482dd

ethcore/service/src/service.rs

@@ -94,6 +94,7 @@ impl ClientService {
 
 		let pruning = config.pruning;
 		let client = Client::new(config, &spec, blockchain_db.clone(), miner.clone(), io_service.channel())?;
+		miner.set_io_channel(io_service.channel());
 
 		let snapshot_params = SnapServiceParams {
 			engine: spec.engine.clone(),

ethcore/src/account_provider/mod.rs

@@ -18,9 +18,9 @@
 
 mod stores;
 
-use self::stores::{AddressBook, DappsSettingsStore, NewDappsPolicy};
+use self::stores::AddressBook;
 
-use std::collections::{HashMap, HashSet};
+use std::collections::HashMap;
 use std::fmt;
 use std::time::{Instant, Duration};
 
@@ -96,20 +96,6 @@ impl From<SSError> for SignError {
 /// `AccountProvider` errors.
 pub type Error = SSError;
 
-/// Dapp identifier
-#[derive(Default, Debug, Clone, Eq, PartialEq, Hash, Ord, PartialOrd)]
-pub struct DappId(String);
-
-impl From<DappId> for String {
-	fn from(id: DappId) -> String { id.0 }
-}
-impl From<String> for DappId {
-	fn from(id: String) -> DappId { DappId(id) }
-}
-impl<'a> From<&'a str> for DappId {
-	fn from(id: &'a str) -> DappId { DappId(id.to_owned()) }
-}
-
 fn transient_sstore() -> EthMultiStore {
 	EthMultiStore::open(Box::new(MemoryDirectory::default())).expect("MemoryDirectory load always succeeds; qed")
 }
@@ -125,8 +111,6 @@ pub struct AccountProvider {
 	unlocked: RwLock<HashMap<StoreAccountRef, AccountData>>,
 	/// Address book.
 	address_book: RwLock<AddressBook>,
-	/// Dapps settings.
-	dapps_settings: RwLock<DappsSettingsStore>,
 	/// Accounts on disk
 	sstore: Box<SecretStore>,
 	/// Accounts unlocked with rolling tokens
@@ -167,7 +151,7 @@ impl AccountProvider {
 	/// Creates new account provider.
 	pub fn new(sstore: Box<SecretStore>, settings: AccountProviderSettings) -> Self {
 		let mut hardware_store = None;
-		
+
 		if settings.enable_hardware_wallets {
 			match HardwareWalletManager::new() {
 				Ok(manager) => {
@@ -195,7 +179,6 @@ impl AccountProvider {
 			unlocked_secrets: RwLock::new(HashMap::new()),
 			unlocked: RwLock::new(HashMap::new()),
 			address_book: RwLock::new(address_book),
-			dapps_settings: RwLock::new(DappsSettingsStore::new(&sstore.local_path())),
 			sstore: sstore,
 			transient_sstore: transient_sstore(),
 			hardware_store: hardware_store,
@@ -210,7 +193,6 @@ impl AccountProvider {
 			unlocked_secrets: RwLock::new(HashMap::new()),
 			unlocked: RwLock::new(HashMap::new()),
 			address_book: RwLock::new(AddressBook::transient()),
-			dapps_settings: RwLock::new(DappsSettingsStore::transient()),
 			sstore: Box::new(EthStore::open(Box::new(MemoryDirectory::default())).expect("MemoryDirectory load always succeeds; qed")),
 			transient_sstore: transient_sstore(),
 			hardware_store: None,
@@ -290,9 +272,14 @@ impl AccountProvider {
 		)
 	}
 
+	/// Returns the address of default account.
+	pub fn default_account(&self) -> Result<Address, Error> {
+		Ok(self.accounts()?.first().cloned().unwrap_or_default())
+	}
+
 	/// Returns addresses of hardware accounts.
 	pub fn hardware_accounts(&self) -> Result<Vec<Address>, Error> {
-		if let Some(accounts) = self.hardware_store.as_ref().map(|h| h.list_wallets()) { 
+		if let Some(accounts) = self.hardware_store.as_ref().map(|h| h.list_wallets()) {
 			if !accounts.is_empty() {
 				return Ok(accounts.into_iter().map(|a| a.address).collect());
 			}
@@ -308,7 +295,7 @@ impl AccountProvider {
 			Some(Ok(s)) => Ok(s),
 		}
 	}
-	
+
 	/// Provide a pin to a locked hardware wallet on USB path to unlock it
 	pub fn hardware_pin_matrix_ack(&self, path: &str, pin: &str) -> Result<bool, SignError> {
 		match self.hardware_store.as_ref().map(|h| h.pin_matrix_ack(path, pin)) {
@@ -318,175 +305,6 @@ impl AccountProvider {
 		}
 	}
 
-	/// Sets addresses of accounts exposed for unknown dapps.
-	/// `None` means that all accounts will be visible.
-	/// If not `None` or empty it will also override default account.
-	pub fn set_new_dapps_addresses(&self, accounts: Option<Vec<Address>>) -> Result<(), Error> {
-		let current_default = self.new_dapps_default_address()?;
-
-		self.dapps_settings.write().set_policy(match accounts {
-			None => NewDappsPolicy::AllAccounts {
-				default: current_default,
-			},
-			Some(accounts) => NewDappsPolicy::Whitelist(accounts),
-		});
-		Ok(())
-	}
-
-	/// Gets addresses of accounts exposed for unknown dapps.
-	/// `None` means that all accounts will be visible.
-	pub fn new_dapps_addresses(&self) -> Result<Option<Vec<Address>>, Error> {
-		Ok(match self.dapps_settings.read().policy() {
-			NewDappsPolicy::AllAccounts { .. } => None,
-			NewDappsPolicy::Whitelist(accounts) => Some(accounts),
-		})
-	}
-
-	/// Sets a default account for unknown dapps.
-	/// This account will always be returned as the first one.
-	pub fn set_new_dapps_default_address(&self, address: Address) -> Result<(), Error> {
-		if !self.valid_addresses()?.contains(&address) {
-			return Err(SSError::InvalidAccount.into());
-		}
-
-		let mut settings = self.dapps_settings.write();
-		let new_policy = match settings.policy() {
-			NewDappsPolicy::AllAccounts { .. } => NewDappsPolicy::AllAccounts { default: address },
-			NewDappsPolicy::Whitelist(list) => NewDappsPolicy::Whitelist(Self::insert_default(list, address)),
-		};
-		settings.set_policy(new_policy);
-
-		Ok(())
-	}
-
-	/// Inserts given address as first in the vector, preventing duplicates.
-	fn insert_default(mut addresses: Vec<Address>, default: Address) -> Vec<Address> {
-		if let Some(position) = addresses.iter().position(|address| address == &default) {
-			addresses.swap(0, position);
-		} else {
-			addresses.insert(0, default);
-		}
-
-		addresses
-	}
-
-	/// Returns a list of accounts that new dapp should see.
-	/// First account is always the default account.
-	fn new_dapps_addresses_list(&self) -> Result<Vec<Address>, Error> {
-		match self.dapps_settings.read().policy() {
-			NewDappsPolicy::AllAccounts { default } => if default.is_zero() {
-				self.accounts()
-			} else {
-				Ok(Self::insert_default(self.accounts()?, default))
-			},
-			NewDappsPolicy::Whitelist(accounts) => {
-				let addresses = self.filter_addresses(accounts)?;
-				if addresses.is_empty() {
-					Ok(vec![self.accounts()?.get(0).cloned().unwrap_or(0.into())])
-				} else {
-					Ok(addresses)
-				}
-			},
-		}
-	}
-
-	/// Gets a default account for new dapps
-	/// Will return zero address in case the default is not set and there are no accounts configured.
-	pub fn new_dapps_default_address(&self) -> Result<Address, Error> {
-		Ok(self.new_dapps_addresses_list()?
-			.get(0)
-			.cloned()
-			.unwrap_or(0.into())
-		)
-	}
-
-	/// Gets a list of dapps recently requesting accounts.
-	pub fn recent_dapps(&self) -> Result<HashMap<DappId, u64>, Error> {
-		Ok(self.dapps_settings.read().recent_dapps())
-	}
-
-	/// Marks dapp as recently used.
-	pub fn note_dapp_used(&self, dapp: DappId) -> Result<(), Error> {
-		let mut dapps = self.dapps_settings.write();
-		dapps.mark_dapp_used(dapp.clone());
-		Ok(())
-	}
-
-	/// Gets addresses visible for given dapp.
-	pub fn dapp_addresses(&self, dapp: DappId) -> Result<Vec<Address>, Error> {
-		let accounts = self.dapps_settings.read().settings().get(&dapp).map(|settings| {
-			(settings.accounts.clone(), settings.default.clone())
-		});
-
-		match accounts {
-			Some((Some(accounts), Some(default))) => self.filter_addresses(Self::insert_default(accounts, default)),
-			Some((Some(accounts), None)) => self.filter_addresses(accounts),
-			Some((None, Some(default))) => self.filter_addresses(Self::insert_default(self.new_dapps_addresses_list()?, default)),
-			_ => self.new_dapps_addresses_list(),
-		}
-	}
-
-	/// Returns default account for particular dapp falling back to other allowed accounts if necessary.
-	pub fn dapp_default_address(&self, dapp: DappId) -> Result<Address, Error> {
-		let dapp_default = self.dapp_addresses(dapp)?
-			.get(0)
-			.cloned();
-
-		match dapp_default {
-			Some(default) => Ok(default),
-			None => self.new_dapps_default_address(),
-		}
-	}
-
-	/// Sets default address for given dapp.
-	/// Does not alter dapp addresses, but this account will always be returned as the first one.
-	pub fn set_dapp_default_address(&self, dapp: DappId, address: Address) -> Result<(), Error> {
-		if !self.valid_addresses()?.contains(&address) {
-			return Err(SSError::InvalidAccount.into());
-		}
-
-		self.dapps_settings.write().set_default(dapp, address);
-		Ok(())
-	}
-
-	/// Sets addresses visible for given dapp.
-	/// If `None` - falls back to dapps addresses
-	/// If not `None` and not empty it will also override default account.
-	pub fn set_dapp_addresses(&self, dapp: DappId, addresses: Option<Vec<Address>>) -> Result<(), Error> {
-		let (addresses, default) = match addresses {
-			Some(addresses) => {
-				let addresses = self.filter_addresses(addresses)?;
-				let default = addresses.get(0).cloned();
-				(Some(addresses), default)
-			},
-			None => (None, None),
-		};
-
-		let mut settings = self.dapps_settings.write();
-		if let Some(default) = default {
-			settings.set_default(dapp.clone(), default);
-		}
-		settings.set_accounts(dapp, addresses);
-		Ok(())
-	}
-
-	fn valid_addresses(&self) -> Result<HashSet<Address>, Error> {
-		Ok(self.addresses_info().into_iter()
-			.map(|(address, _)| address)
-			.chain(self.accounts()?)
-			.collect())
-	}
-
-	/// Removes addresses that are neither accounts nor in address book.
-	fn filter_addresses(&self, addresses: Vec<Address>) -> Result<Vec<Address>, Error> {
-		let valid = self.valid_addresses()?;
-
-		Ok(addresses.into_iter()
-			.filter(|a| valid.contains(&a))
-			.collect()
-		)
-	}
-
 	/// Returns each address along with metadata.
 	pub fn addresses_info(&self) -> HashMap<Address, AccountMeta> {
 		self.address_book.read().get()
@@ -849,7 +667,7 @@ impl AccountProvider {
 
 #[cfg(test)]
 mod tests {
-	use super::{AccountProvider, Unlock, DappId};
+	use super::{AccountProvider, Unlock};
 	use std::time::{Duration, Instant};
 	use ethstore::ethkey::{Generator, Random, Address};
 	use ethstore::{StoreAccountRef, Derivation};
@@ -977,96 +795,6 @@ mod tests {
 		assert!(ap.sign_with_token(kp.address(), token, Default::default()).is_err(), "Second usage of the same token should fail.");
 	}
 
-	#[test]
-	fn should_reset_dapp_addresses_to_default() {
-		// given
-		let ap = AccountProvider::transient_provider();
-		let app = DappId("app1".into());
-		// add accounts to address book
-		ap.set_address_name(1.into(), "1".into());
-		ap.set_address_name(2.into(), "2".into());
-		// set `AllAccounts` policy
-		ap.set_new_dapps_addresses(Some(vec![1.into(), 2.into()])).unwrap();
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![1.into(), 2.into()]);
-
-		// Alter and check
-		ap.set_dapp_addresses(app.clone(), Some(vec![1.into(), 3.into()])).unwrap();
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![1.into()]);
-
-		// Reset back to default
-		ap.set_dapp_addresses(app.clone(), None).unwrap();
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![1.into(), 2.into()]);
-	}
-
-	#[test]
-	fn should_set_dapps_default_address() {
-		// given
-		let ap = AccountProvider::transient_provider();
-		let app = DappId("app1".into());
-		// set `AllAccounts` policy
-		ap.set_new_dapps_addresses(None).unwrap();
-		// add accounts to address book
-		ap.set_address_name(1.into(), "1".into());
-		ap.set_address_name(2.into(), "2".into());
-
-		ap.set_dapp_addresses(app.clone(), Some(vec![1.into(), 2.into(), 3.into()])).unwrap();
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![1.into(), 2.into()]);
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), 1.into());
-
-		// when setting empty list
-		ap.set_dapp_addresses(app.clone(), Some(vec![])).unwrap();
-
-		// then default account is intact
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![1.into()]);
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), 1.into());
-
-		// alter default account
-		ap.set_dapp_default_address("app1".into(), 2.into()).unwrap();
-		assert_eq!(ap.dapp_addresses(app.clone()).unwrap(), vec![2.into()]);
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), 2.into());
-	}
-
-	#[test]
-	fn should_set_dapps_policy_and_default_account() {
-		// given
-		let ap = AccountProvider::transient_provider();
-
-		// default_account should be always available
-		assert_eq!(ap.new_dapps_default_address().unwrap(), 0.into());
-
-		let address = ap.new_account(&"test".into()).unwrap();
-		ap.set_address_name(1.into(), "1".into());
-
-		// Default account set to first account by default
-		assert_eq!(ap.new_dapps_default_address().unwrap(), address);
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), address);
-
-		// Even when returning nothing
-		ap.set_new_dapps_addresses(Some(vec![])).unwrap();
-		// Default account is still returned
-		assert_eq!(ap.dapp_addresses("app1".into()).unwrap(), vec![address]);
-
-		// change to all
-		ap.set_new_dapps_addresses(None).unwrap();
-		assert_eq!(ap.dapp_addresses("app1".into()).unwrap(), vec![address]);
-
-		// change to non-existent account
-		ap.set_new_dapps_addresses(Some(vec![2.into()])).unwrap();
-		assert_eq!(ap.dapp_addresses("app1".into()).unwrap(), vec![address]);
-
-		// change to a addresses
-		ap.set_new_dapps_addresses(Some(vec![1.into()])).unwrap();
-		assert_eq!(ap.dapp_addresses("app1".into()).unwrap(), vec![1.into()]);
-
-		// it overrides default account
-		assert_eq!(ap.new_dapps_default_address().unwrap(), 1.into());
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), 1.into());
-
-		ap.set_new_dapps_default_address(address).unwrap();
-		assert_eq!(ap.new_dapps_default_address().unwrap(), address);
-		assert_eq!(ap.dapp_default_address("app1".into()).unwrap(), address);
-	}
-
 	#[test]
 	fn should_not_return_blacklisted_account() {
 		// given

ethcore/src/account_provider/stores.rs

@@ -14,21 +14,14 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Address Book and Dapps Settings Store
+//! Address Book Store
 
 use std::{fs, fmt, hash, ops};
-use std::sync::atomic::{self, AtomicUsize};
 use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 
 use ethstore::ethkey::Address;
-use ethjson::misc::{
-	AccountMeta,
-	DappsSettings as JsonSettings,
-	DappsHistory as JsonDappsHistory,
-	NewDappsPolicy as JsonNewDappsPolicy,
-};
-use account_provider::DappId;
+use ethjson::misc::AccountMeta;
 
 /// Disk-backed map from Address to String. Uses JSON.
 pub struct AddressBook {
@@ -88,214 +81,6 @@ impl AddressBook {
 	}
 }
 
-/// Dapps user settings
-#[derive(Debug, Default, Clone, Eq, PartialEq)]
-pub struct DappsSettings {
-	/// A list of visible accounts
-	pub accounts: Option<Vec<Address>>,
-	/// Default account
-	pub default: Option<Address>,
-}
-
-impl From<JsonSettings> for DappsSettings {
-	fn from(s: JsonSettings) -> Self {
-		DappsSettings {
-			accounts: s.accounts.map(|accounts| accounts.into_iter().map(Into::into).collect()),
-			default: s.default.map(Into::into),
-		}
-	}
-}
-
-impl From<DappsSettings> for JsonSettings {
-	fn from(s: DappsSettings) -> Self {
-		JsonSettings {
-			accounts: s.accounts.map(|accounts| accounts.into_iter().map(Into::into).collect()),
-			default: s.default.map(Into::into),
-		}
-	}
-}
-
-/// Dapps user settings
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub enum NewDappsPolicy {
-	AllAccounts {
-		default: Address,
-	},
-	Whitelist(Vec<Address>),
-}
-
-impl From<JsonNewDappsPolicy> for NewDappsPolicy {
-	fn from(s: JsonNewDappsPolicy) -> Self {
-		match s {
-			JsonNewDappsPolicy::AllAccounts { default } => NewDappsPolicy::AllAccounts {
-				default: default.into(),
-			},
-			JsonNewDappsPolicy::Whitelist(accounts) => NewDappsPolicy::Whitelist(
-				accounts.into_iter().map(Into::into).collect()
-			),
-		}
-	}
-}
-
-impl From<NewDappsPolicy> for JsonNewDappsPolicy {
-	fn from(s: NewDappsPolicy) -> Self {
-		match s {
-			NewDappsPolicy::AllAccounts { default } => JsonNewDappsPolicy::AllAccounts {
-				default: default.into(),
-			},
-			NewDappsPolicy::Whitelist(accounts) => JsonNewDappsPolicy::Whitelist(
-				accounts.into_iter().map(Into::into).collect()
-			),
-		}
-	}
-}
-
-/// Transient dapps data
-#[derive(Default, Debug, Clone, Eq, PartialEq)]
-pub struct TransientDappsData {
-	/// Timestamp of last access
-	pub last_accessed: u64,
-}
-
-impl From<JsonDappsHistory> for TransientDappsData {
-	fn from(s: JsonDappsHistory) -> Self {
-		TransientDappsData {
-			last_accessed: s.last_accessed,
-		}
-	}
-}
-
-impl From<TransientDappsData> for JsonDappsHistory {
-	fn from(s: TransientDappsData) -> Self {
-		JsonDappsHistory {
-			last_accessed: s.last_accessed,
-		}
-	}
-}
-
-enum TimeProvider {
-	Clock,
-	Incremenetal(AtomicUsize)
-}
-
-impl TimeProvider {
-	fn get(&self) -> u64 {
-		match *self {
-			TimeProvider::Clock => {
-				::std::time::UNIX_EPOCH.elapsed()
-					.expect("Correct time is required to be set")
-					.as_secs()
-
-			},
-			TimeProvider::Incremenetal(ref time) => {
-				time.fetch_add(1, atomic::Ordering::SeqCst) as u64
-			},
-		}
-	}
-}
-
-const MAX_RECENT_DAPPS: usize = 50;
-
-/// Disk-backed map from DappId to Settings. Uses JSON.
-pub struct DappsSettingsStore {
-	/// Dapps Settings
-	settings: DiskMap<DappId, DappsSettings>,
-	/// New Dapps Policy
-	policy: DiskMap<String, NewDappsPolicy>,
-	/// Transient Data of recently Accessed Dapps
-	history: DiskMap<DappId, TransientDappsData>,
-	/// Time
-	time: TimeProvider,
-}
-
-impl DappsSettingsStore {
-	/// Creates new store at given directory path.
-	pub fn new(path: &Path) -> Self {
-		let mut r = DappsSettingsStore {
-			settings: DiskMap::new(path, "dapps_accounts.json".into()),
-			policy: DiskMap::new(path, "dapps_policy.json".into()),
-			history: DiskMap::new(path, "dapps_history.json".into()),
-			time: TimeProvider::Clock,
-		};
-		r.settings.revert(JsonSettings::read);
-		r.policy.revert(JsonNewDappsPolicy::read);
-		r.history.revert(JsonDappsHistory::read);
-		r
-	}
-
-	/// Creates transient store (no changes are saved to disk).
-	pub fn transient() -> Self {
-		DappsSettingsStore {
-			settings: DiskMap::transient(),
-			policy: DiskMap::transient(),
-			history: DiskMap::transient(),
-			time: TimeProvider::Incremenetal(AtomicUsize::new(1)),
-		}
-	}
-
-	/// Get copy of the dapps settings
-	pub fn settings(&self) -> HashMap<DappId, DappsSettings> {
-		self.settings.clone()
-	}
-
-	/// Returns current new dapps policy
-	pub fn policy(&self) -> NewDappsPolicy {
-		self.policy.get("default").cloned().unwrap_or(NewDappsPolicy::AllAccounts {
-			default: 0.into(),
-		})
-	}
-
-	/// Returns recent dapps with last accessed timestamp
-	pub fn recent_dapps(&self) -> HashMap<DappId, u64> {
-		self.history.iter().map(|(k, v)| (k.clone(), v.last_accessed)).collect()
-	}
-
-	/// Marks recent dapp as used
-	pub fn mark_dapp_used(&mut self, dapp: DappId) {
-		{
-			let entry = self.history.entry(dapp).or_insert_with(|| Default::default());
-			entry.last_accessed = self.time.get();
-		}
-		// Clear extraneous entries
-		while self.history.len() > MAX_RECENT_DAPPS {
-			let min = self.history.iter()
-				.min_by_key(|&(_, ref v)| v.last_accessed)
-				.map(|(ref k, _)| k.clone())
-				.cloned();
-
-			match min {
-				Some(k) => self.history.remove(&k),
-				None => break,
-			};
-		}
-		self.history.save(JsonDappsHistory::write);
-	}
-
-	/// Sets current new dapps policy
-	pub fn set_policy(&mut self, policy: NewDappsPolicy) {
-		self.policy.insert("default".into(), policy);
-		self.policy.save(JsonNewDappsPolicy::write);
-	}
-
-	/// Sets accounts for specific dapp.
-	pub fn set_accounts(&mut self, id: DappId, accounts: Option<Vec<Address>>) {
-		{
-			let settings = self.settings.entry(id).or_insert_with(DappsSettings::default);
-			settings.accounts = accounts;
-		}
-		self.settings.save(JsonSettings::write);
-	}
-
-	/// Sets a default account for specific dapp.
-	pub fn set_default(&mut self, id: DappId, default: Address) {
-		{
-			let settings = self.settings.entry(id).or_insert_with(DappsSettings::default);
-			settings.default = Some(default);
-		}
-		self.settings.save(JsonSettings::write);
-	}
-}
-
 /// Disk-serializable HashMap
 #[derive(Debug)]
 struct DiskMap<K: hash::Hash + Eq, V> {
@@ -366,8 +151,7 @@ impl<K: hash::Hash + Eq, V> DiskMap<K, V> {
 
 #[cfg(test)]
 mod tests {
-	use super::{AddressBook, DappsSettingsStore, DappsSettings, NewDappsPolicy};
-	use account_provider::DappId;
+	use super::AddressBook;
 	use std::collections::HashMap;
 	use ethjson::misc::AccountMeta;
 	use tempdir::TempDir;
@@ -398,63 +182,4 @@ mod tests {
 			3.into() => AccountMeta{name: "Three".to_owned(), meta: "{}".to_owned(), uuid: None}
 		]);
 	}
-
-	#[test]
-	fn should_save_and_reload_dapps_settings() {
-		// given
-		let tempdir = TempDir::new("").unwrap();
-		let mut b = DappsSettingsStore::new(tempdir.path());
-
-		// when
-		b.set_accounts("dappOne".into(), Some(vec![1.into(), 2.into()]));
-
-		// then
-		let b = DappsSettingsStore::new(tempdir.path());
-		assert_eq!(b.settings(), hash_map![
-			"dappOne".into() => DappsSettings {
-				accounts: Some(vec![1.into(), 2.into()]),
-				default: None,
-			}
-		]);
-	}
-
-	#[test]
-	fn should_maintain_a_map_of_recent_dapps() {
-		let mut store = DappsSettingsStore::transient();
-		assert!(store.recent_dapps().is_empty(), "Initially recent dapps should be empty.");
-
-		let dapp1: DappId = "dapp1".into();
-		let dapp2: DappId = "dapp2".into();
-		store.mark_dapp_used(dapp1.clone());
-		let recent = store.recent_dapps();
-		assert_eq!(recent.len(), 1);
-		assert_eq!(recent.get(&dapp1), Some(&1));
-
-		store.mark_dapp_used(dapp2.clone());
-		let recent = store.recent_dapps();
-		assert_eq!(recent.len(), 2);
-		assert_eq!(recent.get(&dapp1), Some(&1));
-		assert_eq!(recent.get(&dapp2), Some(&2));
-	}
-
-	#[test]
-	fn should_store_dapps_policy() {
-		// given
-		let tempdir = TempDir::new("").unwrap();
-		let mut store = DappsSettingsStore::new(tempdir.path());
-
-		// Test default policy
-		assert_eq!(store.policy(), NewDappsPolicy::AllAccounts {
-			default: 0.into(),
-		});
-
-		// when
-		store.set_policy(NewDappsPolicy::Whitelist(vec![1.into(), 2.into()]));
-
-		// then
-		let store = DappsSettingsStore::new(tempdir.path());
-		assert_eq!(store.policy.clone(), hash_map![
-			"default".into() => NewDappsPolicy::Whitelist(vec![1.into(), 2.into()])
-		]);
-	}
 }

ethcore/src/blockchain/blockchain.rs

@@ -35,6 +35,7 @@ use encoded;
 use engines::epoch::{Transition as EpochTransition, PendingTransition as PendingEpochTransition};
 use engines::ForkChoice;
 use ethereum_types::{H256, Bloom, BloomRef, U256};
+use error::Error as EthcoreError;
 use header::*;
 use heapsize::HeapSizeOf;
 use itertools::Itertools;
@@ -60,6 +61,21 @@ pub trait BlockChainDB: Send + Sync {
 
 	/// Trace blooms database.
 	fn trace_blooms(&self) -> &blooms_db::Database;
+
+	/// Restore the DB from the given path
+	fn restore(&self, new_db: &str) -> Result<(), EthcoreError> {
+		// First, close the Blooms databases
+		self.blooms().close()?;
+		self.trace_blooms().close()?;
+
+		// Restore the key_value DB
+		self.key_value().restore(new_db)?;
+
+		// Re-open the Blooms databases
+		self.blooms().reopen()?;
+		self.trace_blooms().reopen()?;
+		Ok(())
+	}
 }
 
 /// Generic database handler. This trait contains one function `open`. When called, it opens database with a

ethcore/src/client/client.rs

@@ -15,7 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::collections::{HashSet, BTreeMap, VecDeque};
-use std::fmt;
+use std::cmp;
 use std::str::FromStr;
 use std::sync::atomic::{AtomicUsize, AtomicBool, Ordering as AtomicOrdering};
 use std::sync::{Arc, Weak};
@@ -50,13 +50,16 @@ use client::{
 };
 use encoded;
 use engines::{EthEngine, EpochTransition, ForkChoice};
-use error::{ImportErrorKind, BlockImportErrorKind, ExecutionError, CallError, BlockError, ImportResult, Error as EthcoreError};
+use error::{
+	ImportErrorKind, BlockImportErrorKind, ExecutionError, CallError, BlockError, ImportResult,
+	QueueError, QueueErrorKind, Error as EthcoreError
+};
 use vm::{EnvInfo, LastHashes};
 use evm::Schedule;
 use executive::{Executive, Executed, TransactOptions, contract_address};
 use factory::{Factories, VmFactory};
 use header::{BlockNumber, Header, ExtendedHeader};
-use io::{IoChannel, IoError};
+use io::IoChannel;
 use log_entry::LocalizedLogEntry;
 use miner::{Miner, MinerService};
 use ethcore_miner::pool::VerifiedTransaction;
@@ -200,7 +203,7 @@ pub struct Client {
 
 	/// Flag changed by `sleep` and `wake_up` methods. Not to be confused with `enabled`.
 	liveness: AtomicBool,
-	io_channel: Mutex<IoChannel<ClientIoMessage>>,
+	io_channel: RwLock<IoChannel<ClientIoMessage>>,
 
 	/// List of actors to be notified on certain chain events
 	notify: RwLock<Vec<Weak<ChainNotify>>>,
@@ -761,7 +764,7 @@ impl Client {
 			db: RwLock::new(db.clone()),
 			state_db: RwLock::new(state_db),
 			report: RwLock::new(Default::default()),
-			io_channel: Mutex::new(message_channel),
+			io_channel: RwLock::new(message_channel),
 			notify: RwLock::new(Vec::new()),
 			queue_transactions: IoChannelQueue::new(config.transaction_verification_queue_size),
 			queue_ancient_blocks: IoChannelQueue::new(MAX_ANCIENT_BLOCKS_QUEUE_SIZE),
@@ -995,7 +998,7 @@ impl Client {
 
 	/// Replace io channel. Useful for testing.
 	pub fn set_io_channel(&self, io_channel: IoChannel<ClientIoMessage>) {
-		*self.io_channel.lock() = io_channel;
+		*self.io_channel.write() = io_channel;
 	}
 
 	/// Get a copy of the best block's state.
@@ -1293,9 +1296,7 @@ impl snapshot::DatabaseRestore for Client {
 		let mut tracedb = self.tracedb.write();
 		self.importer.miner.clear();
 		let db = self.db.write();
-		db.key_value().restore(new_db)?;
-		db.blooms().reopen()?;
-		db.trace_blooms().reopen()?;
+		db.restore(new_db)?;
 
 		let cache_size = state_db.cache_size();
 		*state_db = StateDB::new(journaldb::new(db.key_value().clone(), self.pruning, ::db::COL_STATE), cache_size);
@@ -1348,7 +1349,7 @@ impl BlockInfo for Client {
 	}
 
 	fn code_hash(&self, address: &Address, id: BlockId) -> Option<H256> {
-		self.state_at(id).and_then(|s| s.code_hash(address).ok())
+		self.state_at(id).and_then(|s| s.code_hash(address).unwrap_or(None))
 	}
 }
 
@@ -1485,28 +1486,34 @@ impl Call for Client {
 		let sender = t.sender();
 		let options = || TransactOptions::with_tracing().dont_check_nonce();
 
-		let cond = |gas| {
+		let exec = |gas| {
 			let mut tx = t.as_unsigned().clone();
 			tx.gas = gas;
 			let tx = tx.fake_sign(sender);
 
 			let mut clone = state.clone();
-			Ok(Executive::new(&mut clone, &env_info, self.engine.machine())
+			Executive::new(&mut clone, &env_info, self.engine.machine())
 				.transact_virtual(&tx, options())
+				.ok()
 				.map(|r| r.exception.is_none())
-				.unwrap_or(false))
 		};
 
-		if !cond(upper)? {
+		let cond = |gas| exec(gas).unwrap_or(false);
+
+		if !cond(upper) {
 			upper = max_upper;
-			if !cond(upper)? {
-				trace!(target: "estimate_gas", "estimate_gas failed with {}", upper);
-				let err = ExecutionError::Internal(format!("Requires higher than upper limit of {}", upper));
-				return Err(err.into())
+			match exec(upper) {
+				Some(false) => return Err(CallError::Exceptional),
+				None => {
+					trace!(target: "estimate_gas", "estimate_gas failed with {}", upper);
+					let err = ExecutionError::Internal(format!("Requires higher than upper limit of {}", upper));
+					return Err(err.into())
+				},
+				_ => {},
 			}
 		}
 		let lower = t.gas_required(&self.engine.schedule(env_info.number)).into();
-		if cond(lower)? {
+		if cond(lower) {
 			trace!(target: "estimate_gas", "estimate_gas succeeded with {}", lower);
 			return Ok(lower)
 		}
@@ -1515,12 +1522,12 @@ impl Call for Client {
 		/// Returns the lowest value between `lower` and `upper` for which `cond` returns true.
 		/// We assert: `cond(lower) = false`, `cond(upper) = true`
 		fn binary_chop<F, E>(mut lower: U256, mut upper: U256, mut cond: F) -> Result<U256, E>
-			where F: FnMut(U256) -> Result<bool, E>
+			where F: FnMut(U256) -> bool
 		{
 			while upper - lower > 1.into() {
 				let mid = (lower + upper) / 2.into();
 				trace!(target: "estimate_gas", "{} .. {} .. {}", lower, mid, upper);
-				let c = cond(mid)?;
+				let c = cond(mid);
 				match c {
 					true => upper = mid,
 					false => lower = mid,
@@ -1952,7 +1959,25 @@ impl BlockChainClient for Client {
 		(*self.build_last_hashes(&self.chain.read().best_block_hash())).clone()
 	}
 
-	fn ready_transactions(&self, max_len: usize) -> Vec<Arc<VerifiedTransaction>> {
+	fn transactions_to_propagate(&self) -> Vec<Arc<VerifiedTransaction>> {
+		const PROPAGATE_FOR_BLOCKS: u32 = 4;
+		const MIN_TX_TO_PROPAGATE: usize = 256;
+
+		let block_gas_limit = *self.best_block_header().gas_limit();
+		let min_tx_gas: U256 = self.latest_schedule().tx_gas.into();
+
+		let max_len = if min_tx_gas.is_zero() {
+			usize::max_value()
+		} else {
+			cmp::max(
+				MIN_TX_TO_PROPAGATE,
+				cmp::min(
+					(block_gas_limit / min_tx_gas) * PROPAGATE_FOR_BLOCKS,
+					// never more than usize
+					usize::max_value().into()
+				).as_u64() as usize
+			)
+		};
 		self.importer.miner.ready_transactions(self, max_len, ::miner::PendingOrdering::Priority)
 	}
 
@@ -2001,17 +2026,13 @@ impl BlockChainClient for Client {
 	fn registrar_address(&self) -> Option<Address> {
 		self.registrar_address.clone()
 	}
-
-	fn eip86_transition(&self) -> u64 {
-		self.engine().params().eip86_transition
-	}
 }
 
 impl IoClient for Client {
 	fn queue_transactions(&self, transactions: Vec<Bytes>, peer_id: usize) {
 		trace_time!("queue_transactions");
 		let len = transactions.len();
-		self.queue_transactions.queue(&mut self.io_channel.lock(), len, move |client| {
+		self.queue_transactions.queue(&self.io_channel.read(), len, move |client| {
 			trace_time!("import_queued_transactions");
 
 			let txs: Vec<UnverifiedTransaction> = transactions
@@ -2060,7 +2081,7 @@ impl IoClient for Client {
 
 		let queued = self.queued_ancient_blocks.clone();
 		let lock = self.ancient_blocks_import_lock.clone();
-		match self.queue_ancient_blocks.queue(&mut self.io_channel.lock(), 1, move |client| {
+		self.queue_ancient_blocks.queue(&self.io_channel.read(), 1, move |client| {
 			trace_time!("import_ancient_block");
 			// Make sure to hold the lock here to prevent importing out of order.
 			// We use separate lock, cause we don't want to block queueing.
@@ -2085,14 +2106,13 @@ impl IoClient for Client {
 					break;
 				}
 			}
-		}) {
-			Ok(_) => Ok(hash),
-			Err(e) => bail!(BlockImportErrorKind::Other(format!("{}", e))),
-		}
+		})?;
+
+		Ok(hash)
 	}
 
 	fn queue_consensus_message(&self, message: Bytes) {
-		match self.queue_consensus_message.queue(&mut self.io_channel.lock(), 1, move |client| {
+		match self.queue_consensus_message.queue(&self.io_channel.read(), 1, move |client| {
 			if let Err(e) = client.engine().handle_message(&message) {
 				debug!(target: "poa", "Invalid message received: {}", e);
 			}
@@ -2202,7 +2222,14 @@ impl ImportSealedBlock for Client {
 			route
 		};
 		let route = ChainRoute::from([route].as_ref());
-		self.importer.miner.chain_new_blocks(self, &[h.clone()], &[], route.enacted(), route.retracted(), self.engine.seals_internally().is_some());
+		self.importer.miner.chain_new_blocks(
+			self,
+			&[h.clone()],
+			&[],
+			route.enacted(),
+			route.retracted(),
+			self.engine.seals_internally().is_some(),
+		);
 		self.notify(|notify| {
 			notify.new_blocks(
 				vec![h.clone()],
@@ -2290,14 +2317,13 @@ impl ProvingBlockChainClient for Client {
 		env_info.gas_limit = transaction.gas.clone();
 		let mut jdb = self.state_db.read().journal_db().boxed_clone();
 
-		state::prove_transaction(
+		state::prove_transaction_virtual(
 			jdb.as_hashdb_mut(),
 			header.state_root().clone(),
 			&transaction,
 			self.engine.machine(),
 			&env_info,
 			self.factories.clone(),
-			false,
 		)
 	}
 
@@ -2497,21 +2523,6 @@ mod tests {
 	}
 }
 
-#[derive(Debug)]
-enum QueueError {
-	Channel(IoError),
-	Full(usize),
-}
-
-impl fmt::Display for QueueError {
-	fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-		match *self {
-			QueueError::Channel(ref c) => fmt::Display::fmt(c, fmt),
-			QueueError::Full(limit) => write!(fmt, "The queue is full ({})", limit),
-		}
-	}
-}
-
 /// Queue some items to be processed by IO client.
 struct IoChannelQueue {
 	currently_queued: Arc<AtomicUsize>,
@@ -2526,11 +2537,11 @@ impl IoChannelQueue {
 		}
 	}
 
-	pub fn queue<F>(&self, channel: &mut IoChannel<ClientIoMessage>, count: usize, fun: F) -> Result<(), QueueError> where
+	pub fn queue<F>(&self, channel: &IoChannel<ClientIoMessage>, count: usize, fun: F) -> Result<(), QueueError> where
 		F: Fn(&Client) + Send + Sync + 'static,
 	{
 		let queue_size = self.currently_queued.load(AtomicOrdering::Relaxed);
-		ensure!(queue_size < self.limit, QueueError::Full(self.limit));
+		ensure!(queue_size < self.limit, QueueErrorKind::Full(self.limit));
 
 		let currently_queued = self.currently_queued.clone();
 		let result = channel.send(ClientIoMessage::execute(move |client| {
@@ -2543,7 +2554,7 @@ impl IoChannelQueue {
 				self.currently_queued.fetch_add(count, AtomicOrdering::SeqCst);
 				Ok(())
 			},
-			Err(e) => Err(QueueError::Channel(e)),
+			Err(e) => bail!(QueueErrorKind::Channel(e)),
 		}
 	}
 }

ethcore/src/client/evm_test_client.rs

@@ -60,7 +60,7 @@ impl fmt::Display for EvmTestError {
 }
 
 use ethereum;
-use ethjson::state::test::ForkSpec;
+use ethjson::spec::ForkSpec;
 
 /// Simplified, single-block EVM test client.
 pub struct EvmTestClient<'a> {
@@ -69,12 +69,12 @@ pub struct EvmTestClient<'a> {
 }
 
 impl<'a> fmt::Debug for EvmTestClient<'a> {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        fmt.debug_struct("EvmTestClient")
-            .field("state", &self.state)
-            .field("spec", &self.spec.name)
-            .finish()
-    }
+	fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+		fmt.debug_struct("EvmTestClient")
+			.field("state", &self.state)
+			.field("spec", &self.spec.name)
+			.finish()
+	}
 }
 
 impl<'a> EvmTestClient<'a> {
@@ -86,9 +86,9 @@ impl<'a> EvmTestClient<'a> {
 			ForkSpec::EIP150 => Some(ethereum::new_eip150_test()),
 			ForkSpec::EIP158 => Some(ethereum::new_eip161_test()),
 			ForkSpec::Byzantium => Some(ethereum::new_byzantium_test()),
+			ForkSpec::Constantinople => Some(ethereum::new_constantinople_test()),
 			ForkSpec::EIP158ToByzantiumAt5 => Some(ethereum::new_transition_test()),
 			ForkSpec::FrontierToHomesteadAt5 | ForkSpec::HomesteadToDaoAt5 | ForkSpec::HomesteadToEIP150At5 => None,
-			_ => None,
 		}
 	}
 
@@ -205,7 +205,7 @@ impl<'a> EvmTestClient<'a> {
 	) -> TransactResult<T::Output, V::Output> {
 		let initial_gas = transaction.gas;
 		// Verify transaction
-		let is_ok = transaction.verify_basic(true, None, env_info.number >= self.spec.engine.params().eip86_transition);
+		let is_ok = transaction.verify_basic(true, None, false);
 		if let Err(error) = is_ok {
 			return TransactResult::Err {
 				state_root: *self.state.root(),
@@ -217,9 +217,27 @@ impl<'a> EvmTestClient<'a> {
 		let result = self.state.apply_with_tracing(&env_info, self.spec.engine.machine(), &transaction, tracer, vm_tracer);
 		let scheme = self.spec.engine.machine().create_address_scheme(env_info.number);
 
+		// Touch the coinbase at the end of the test to simulate
+		// miner reward.
+		// Details: https://github.com/paritytech/parity-ethereum/issues/9431
+		let schedule = self.spec.engine.machine().schedule(env_info.number);
+		self.state.add_balance(&env_info.author, &0.into(), if schedule.no_empty {
+			state::CleanupMode::NoEmpty
+		} else {
+			state::CleanupMode::ForceCreate
+		}).ok();
+		// Touching also means that we should remove the account if it's within eip161
+		// conditions.
+		self.state.kill_garbage(
+			&vec![env_info.author].into_iter().collect(),
+			schedule.kill_empty,
+			&None,
+			false
+		).ok();
+		self.state.commit().ok();
+
 		match result {
 			Ok(result) => {
-				self.state.commit().ok();
 				TransactResult::Ok {
 					state_root: *self.state.root(),
 					gas_left: initial_gas - result.receipt.gas_used,

ethcore/src/client/test_client.rs

@@ -805,8 +805,8 @@ impl BlockChainClient for TestBlockChainClient {
 		self.traces.read().clone()
 	}
 
-	fn ready_transactions(&self, max_len: usize) -> Vec<Arc<VerifiedTransaction>> {
-		self.miner.ready_transactions(self, max_len, miner::PendingOrdering::Priority)
+	fn transactions_to_propagate(&self) -> Vec<Arc<VerifiedTransaction>> {
+		self.miner.ready_transactions(self, 4096, miner::PendingOrdering::Priority)
 	}
 
 	fn signing_chain_id(&self) -> Option<u64> { None }
@@ -845,8 +845,6 @@ impl BlockChainClient for TestBlockChainClient {
 	}
 
 	fn registrar_address(&self) -> Option<Address> { None }
-
-	fn eip86_transition(&self) -> u64 { u64::max_value() }
 }
 
 impl IoClient for TestBlockChainClient {

ethcore/src/client/traits.rs

@@ -320,8 +320,8 @@ pub trait BlockChainClient : Sync + Send + AccountData + BlockChain + CallContra
 	/// Get last hashes starting from best block.
 	fn last_hashes(&self) -> LastHashes;
 
-	/// List all transactions that are allowed into the next block.
-	fn ready_transactions(&self, max_len: usize) -> Vec<Arc<VerifiedTransaction>>;
+	/// List all ready transactions that should be propagated to other peers.
+	fn transactions_to_propagate(&self) -> Vec<Arc<VerifiedTransaction>>;
 
 	/// Sorted list of transaction gas prices from at least last sample_size blocks.
 	fn gas_price_corpus(&self, sample_size: usize) -> ::stats::Corpus<U256> {
@@ -377,9 +377,6 @@ pub trait BlockChainClient : Sync + Send + AccountData + BlockChain + CallContra
 
 	/// Get the address of the registry itself.
 	fn registrar_address(&self) -> Option<Address>;
-
-	/// Get the EIP-86 transition block number.
-	fn eip86_transition(&self) -> u64;
 }
 
 /// Provides `reopen_block` method

ethcore/src/engines/authority_round/mod.rs

@@ -317,7 +317,7 @@ impl EmptyStep {
 
 impl fmt::Display for EmptyStep {
 	fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-		write!(f, "({}, {}, {})", self.signature, self.step, self.parent_hash)
+		write!(f, "({:x}, {}, {:x})", self.signature, self.step, self.parent_hash)
 	}
 }
 
@@ -825,6 +825,10 @@ impl Engine<EthereumMachine> for AuthorityRound {
 
 	/// Additional engine-specific information for the user/developer concerning `header`.
 	fn extra_info(&self, header: &Header) -> BTreeMap<String, String> {
+		if header.seal().len() < header_expected_seal_fields(header, self.empty_steps_transition) {
+			return BTreeMap::default();
+		}
+
 		let step = header_step(header, self.empty_steps_transition).as_ref().map(ToString::to_string).unwrap_or("".into());
 		let signature = header_signature(header, self.empty_steps_transition).as_ref().map(ToString::to_string).unwrap_or("".into());
 
@@ -984,8 +988,10 @@ impl Engine<EthereumMachine> for AuthorityRound {
 					self.clear_empty_steps(parent_step);
 
 					// report any skipped primaries between the parent block and
-					// the block we're sealing
-					self.report_skipped(header, step, u64::from(parent_step) as usize, &*validators, set_number);
+					// the block we're sealing, unless we have empty steps enabled
+					if header.number() < self.empty_steps_transition {
+						self.report_skipped(header, step, u64::from(parent_step) as usize, &*validators, set_number);
+					}
 
 					let mut fields = vec![
 						encode(&step).into_vec(),
@@ -1149,9 +1155,10 @@ impl Engine<EthereumMachine> for AuthorityRound {
 
 		// If empty step messages are enabled we will validate the messages in the seal, missing messages are not
 		// reported as there's no way to tell whether the empty step message was never sent or simply not included.
-		if header.number() >= self.empty_steps_transition {
-			let validate_empty_steps = || -> Result<(), Error> {
+		let empty_steps_len = if header.number() >= self.empty_steps_transition {
+			let validate_empty_steps = || -> Result<usize, Error> {
 				let empty_steps = header_empty_steps(header)?;
+				let empty_steps_len = empty_steps.len();
 				for empty_step in empty_steps {
 					if empty_step.step <= parent_step || empty_step.step >= step {
 						Err(EngineError::InsufficientProof(
@@ -1168,16 +1175,27 @@ impl Engine<EthereumMachine> for AuthorityRound {
 							format!("invalid empty step proof: {:?}", empty_step)))?;
 					}
 				}
-				Ok(())
+				Ok(empty_steps_len)
 			};
 
-			if let err @ Err(_) = validate_empty_steps() {
-				self.validators.report_benign(header.author(), set_number, header.number());
-				return err;
+			match validate_empty_steps() {
+				Ok(len) => len,
+				Err(err) => {
+					self.validators.report_benign(header.author(), set_number, header.number());
+					return Err(err);
+				},
 			}
-
 		} else {
 			self.report_skipped(header, step, parent_step, &*validators, set_number);
+
+			0
+		};
+
+		if header.number() >= self.validate_score_transition {
+			let expected_difficulty = calculate_score(parent_step.into(), step.into(), empty_steps_len.into());
+			if header.difficulty() != &expected_difficulty {
+				return Err(From::from(BlockError::InvalidDifficulty(Mismatch { expected: expected_difficulty, found: header.difficulty().clone() })));
+			}
 		}
 
 		Ok(())
@@ -1395,10 +1413,12 @@ impl Engine<EthereumMachine> for AuthorityRound {
 
 #[cfg(test)]
 mod tests {
+	use std::collections::BTreeMap;
 	use std::sync::Arc;
 	use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
 	use hash::keccak;
 	use ethereum_types::{Address, H520, H256, U256};
+	use ethkey::Signature;
 	use header::Header;
 	use rlp::encode;
 	use block::*;
@@ -1412,7 +1432,7 @@ mod tests {
 	use engines::{Seal, Engine, EngineError, EthEngine};
 	use engines::validator_set::TestSet;
 	use error::{Error, ErrorKind};
-	use super::{AuthorityRoundParams, AuthorityRound, EmptyStep, SealedEmptyStep};
+	use super::{AuthorityRoundParams, AuthorityRound, EmptyStep, SealedEmptyStep, calculate_score};
 
 	#[test]
 	fn has_valid_metadata() {
@@ -1518,12 +1538,15 @@ mod tests {
 
 		let engine = Spec::new_test_round().engine;
 
-		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		// Two validators.
 		// Spec starts with step 2.
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(2), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&2usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_err());
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(1), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&1usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_ok());
@@ -1544,9 +1567,10 @@ mod tests {
 
 		let engine = Spec::new_test_round().engine;
 
-		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		// Two validators.
 		// Spec starts with step 2.
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(1), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&1usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_ok());
@@ -1573,8 +1597,10 @@ mod tests {
 		// Two validators.
 		// Spec starts with step 2.
 		header.set_seal(vec![encode(&5usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
+		header.set_difficulty(calculate_score(U256::from(4), U256::from(5), U256::zero()));
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		header.set_seal(vec![encode(&3usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
+		header.set_difficulty(calculate_score(U256::from(4), U256::from(3), U256::zero()));
 		assert!(engine.verify_block_family(&header, &parent_header).is_err());
 	}
 
@@ -1608,6 +1634,7 @@ mod tests {
 		parent_header.set_seal(vec![encode(&1usize).into_vec()]);
 		parent_header.set_gas_limit("222222".parse::<U256>().unwrap());
 		let mut header: Header = Header::default();
+		header.set_difficulty(calculate_score(U256::from(1), U256::from(3), U256::zero()));
 		header.set_gas_limit("222222".parse::<U256>().unwrap());
 		header.set_seal(vec![encode(&3usize).into_vec()]);
 
@@ -1967,16 +1994,15 @@ mod tests {
 		let empty_step3 = sealed_empty_step(engine, 3, &parent_header.hash());
 
 		let empty_steps = vec![empty_step2, empty_step3];
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(4), U256::from(2)));
+		let signature = tap.sign(addr1, Some("1".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![
 			encode(&4usize).into_vec(),
 			encode(&(&*signature as &[u8])).into_vec(),
 			::rlp::encode_list(&empty_steps).into_vec(),
 		]);
 
-		assert!(match engine.verify_block_family(&header, &parent_header) {
-			Ok(_) => true,
-			_ => false,
-		});
+		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 	}
 
 	#[test]
@@ -2047,4 +2073,40 @@ mod tests {
 			addr1_balance + (1000 + 0).into() + (1000 + 2).into(),
 		)
 	}
+
+	#[test]
+	fn extra_info_from_seal() {
+		let (spec, tap, accounts) = setup_empty_steps();
+		let engine = &*spec.engine;
+
+		let addr1 = accounts[0];
+		engine.set_signer(tap.clone(), addr1, "1".into());
+
+		let mut header: Header = Header::default();
+		let empty_step = empty_step(engine, 1, &header.parent_hash());
+		let sealed_empty_step = empty_step.sealed();
+
+		header.set_number(2);
+		header.set_seal(vec![
+			encode(&2usize).to_vec(),
+			encode(&H520::default()).to_vec(),
+			::rlp::encode_list(&vec![sealed_empty_step]).to_vec(),
+		]);
+
+		let info = engine.extra_info(&header);
+
+		let mut expected = BTreeMap::default();
+		expected.insert("step".into(), "2".into());
+		expected.insert("signature".into(), Signature::from(H520::default()).to_string());
+		expected.insert("emptySteps".into(), format!("[{}]", empty_step));
+
+		assert_eq!(info, expected);
+
+		header.set_seal(vec![]);
+
+		assert_eq!(
+			engine.extra_info(&header),
+			BTreeMap::default(),
+		);
+	}
 }

ethcore/src/engines/tendermint/mod.rs

@@ -693,7 +693,6 @@ impl Engine<EthereumMachine> for Tendermint {
 	}
 
 	fn stop(&self) {
-		self.step_service.stop()
 	}
 
 	fn is_proposal(&self, header: &Header) -> bool {

ethcore/src/error.rs

@@ -151,6 +151,24 @@ impl error::Error for BlockError {
 	}
 }
 
+error_chain! {
+	types {
+		QueueError, QueueErrorKind, QueueErrorResultExt, QueueErrorResult;
+	}
+
+	errors {
+		#[doc = "Queue is full"]
+		Full(limit: usize) {
+			description("Queue is full")
+			display("The queue is full ({})", limit)
+		}
+	}
+
+	foreign_links {
+		Channel(IoError) #[doc = "Io channel error"];
+	}
+}
+
 error_chain! {
 	types {
 		ImportError, ImportErrorKind, ImportErrorResultExt, ImportErrorResult;
@@ -184,6 +202,7 @@ error_chain! {
 
 	links {
 		Import(ImportError, ImportErrorKind) #[doc = "Import error"];
+		Queue(QueueError, QueueErrorKind) #[doc = "Io channel queue error"];
 	}
 
 	foreign_links {

ethcore/src/ethereum/ethash.rs

@@ -20,7 +20,7 @@ use std::collections::BTreeMap;
 use std::sync::Arc;
 use hash::{KECCAK_EMPTY_LIST_RLP};
 use engines::block_reward::{self, RewardKind};
-use ethash::{quick_get_difficulty, slow_hash_block_number, EthashManager, OptimizeFor};
+use ethash::{self, quick_get_difficulty, slow_hash_block_number, EthashManager, OptimizeFor};
 use ethereum_types::{H256, H64, U256, Address};
 use unexpected::{OutOfBounds, Mismatch};
 use block::*;
@@ -36,8 +36,9 @@ use machine::EthereumMachine;
 const SNAPSHOT_BLOCKS: u64 = 5000;
 /// Maximum number of blocks allowed in an ethash snapshot.
 const MAX_SNAPSHOT_BLOCKS: u64 = 30000;
-
+/// Default number of blocks the difficulty bomb is delayed in EIP-{649,1234}
 const DEFAULT_EIP649_DELAY: u64 = 3_000_000;
+const DEFAULT_EIP1234_DELAY: u64 = 2_000_000;
 
 /// Ethash specific seal
 #[derive(Debug, PartialEq)]
@@ -120,6 +121,12 @@ pub struct EthashParams {
 	pub eip649_delay: u64,
 	/// EIP-649 base reward.
 	pub eip649_reward: Option<U256>,
+	/// EIP-1234 transition block.
+	pub eip1234_transition: u64,
+	/// EIP-1234 bomb delay.
+	pub eip1234_delay: u64,
+	/// EIP-1234 base reward.
+	pub eip1234_reward: Option<U256>,
 	/// EXPIP-2 block height
 	pub expip2_transition: u64,
 	/// EXPIP-2 duration limit
@@ -152,6 +159,9 @@ impl From<ethjson::spec::EthashParams> for EthashParams {
 			eip649_transition: p.eip649_transition.map_or(u64::max_value(), Into::into),
 			eip649_delay: p.eip649_delay.map_or(DEFAULT_EIP649_DELAY, Into::into),
 			eip649_reward: p.eip649_reward.map(Into::into),
+			eip1234_transition: p.eip1234_transition.map_or(u64::max_value(), Into::into),
+			eip1234_delay: p.eip1234_delay.map_or(DEFAULT_EIP1234_DELAY, Into::into),
+			eip1234_reward: p.eip1234_reward.map(Into::into),
 			expip2_transition: p.expip2_transition.map_or(u64::max_value(), Into::into),
 			expip2_duration_limit: p.expip2_duration_limit.map_or(30, Into::into),
 		}
@@ -233,8 +243,10 @@ impl Engine<EthereumMachine> for Arc<Ethash> {
 
 		let mut rewards = Vec::new();
 
-		// Applies EIP-649 reward.
-		let reward = if number >= self.ethash_params.eip649_transition {
+		// Applies EIP-{649,1234} reward, defaults to block_reward.
+		let reward = if number >= self.ethash_params.eip1234_transition {
+			self.ethash_params.eip1234_reward.unwrap_or(self.ethash_params.block_reward)
+		} else if number >= self.ethash_params.eip649_transition {
 			self.ethash_params.eip649_reward.unwrap_or(self.ethash_params.block_reward)
 		} else {
 			self.ethash_params.block_reward
@@ -280,11 +292,18 @@ impl Engine<EthereumMachine> for Arc<Ethash> {
 		block_reward::apply_block_rewards(&rewards, block, &self.machine)
 	}
 
+	#[cfg(not(feature = "miner-debug"))]
 	fn verify_local_seal(&self, header: &Header) -> Result<(), Error> {
 		self.verify_block_basic(header)
 			.and_then(|_| self.verify_block_unordered(header))
 	}
 
+	#[cfg(feature = "miner-debug")]
+	fn verify_local_seal(&self, _header: &Header) -> Result<(), Error> {
+		warn!("Skipping seal verification, running in miner testing mode.");
+		Ok(())
+	}
+
 	fn verify_block_basic(&self, header: &Header) -> Result<(), Error> {
 		// check the seal fields.
 		let seal = Seal::parse_seal(header.seal())?;
@@ -295,7 +314,7 @@ impl Engine<EthereumMachine> for Arc<Ethash> {
 			return Err(From::from(BlockError::DifficultyOutOfBounds(OutOfBounds { min: Some(min_difficulty), max: None, found: header.difficulty().clone() })))
 		}
 
-		let difficulty = Ethash::boundary_to_difficulty(&H256(quick_get_difficulty(
+		let difficulty = ethash::boundary_to_difficulty(&H256(quick_get_difficulty(
 			&header.bare_hash().0,
 			seal.nonce.low_u64(),
 			&seal.mix_hash.0
@@ -317,7 +336,7 @@ impl Engine<EthereumMachine> for Arc<Ethash> {
 
 		let result = self.pow.compute_light(header.number() as u64, &header.bare_hash().0, seal.nonce.low_u64());
 		let mix = H256(result.mix_hash);
-		let difficulty = Ethash::boundary_to_difficulty(&H256(result.value));
+		let difficulty = ethash::boundary_to_difficulty(&H256(result.value));
 		trace!(target: "miner", "num: {num}, seed: {seed}, h: {h}, non: {non}, mix: {mix}, res: {res}",
 			   num = header.number() as u64,
 			   seed = H256(slow_hash_block_number(header.number() as u64)),
@@ -420,6 +439,9 @@ impl Ethash {
 		if header.number() < self.ethash_params.bomb_defuse_transition {
 			if header.number() < self.ethash_params.ecip1010_pause_transition {
 				let mut number = header.number();
+				if number >= self.ethash_params.eip1234_transition {
+					number = number.saturating_sub(self.ethash_params.eip1234_delay);
+				}
 				if number >= self.ethash_params.eip649_transition {
 					number = number.saturating_sub(self.ethash_params.eip649_delay);
 				}
@@ -440,25 +462,6 @@ impl Ethash {
 		}
 		target
 	}
-
-	/// Convert an Ethash boundary to its original difficulty. Basically just `f(x) = 2^256 / x`.
-	pub fn boundary_to_difficulty(boundary: &H256) -> U256 {
-		let d = U256::from(*boundary);
-		if d <= U256::one() {
-			U256::max_value()
-		} else {
-			((U256::one() << 255) / d) << 1
-		}
-	}
-
-	/// Convert an Ethash difficulty to the target boundary. Basically just `f(x) = 2^256 / x`.
-	pub fn difficulty_to_boundary(difficulty: &U256) -> H256 {
-		if *difficulty <= U256::one() {
-			U256::max_value().into()
-		} else {
-			(((U256::one() << 255) / *difficulty) << 1).into()
-		}
-	}
 }
 
 fn ecip1017_eras_block_reward(era_rounds: u64, mut reward: U256, block_number:u64) -> (u64, U256) {
@@ -522,6 +525,9 @@ mod tests {
 			eip649_transition: u64::max_value(),
 			eip649_delay: 3_000_000,
 			eip649_reward: None,
+			eip1234_transition: u64::max_value(),
+			eip1234_delay: 2_000_000,
+			eip1234_reward: None,
 			expip2_transition: u64::max_value(),
 			expip2_duration_limit: 30,
 		}
@@ -759,16 +765,6 @@ mod tests {
 		}
 	}
 
-	#[test]
-	fn test_difficulty_to_boundary() {
-		// result of f(0) is undefined, so do not assert the result
-		let _ = Ethash::difficulty_to_boundary(&U256::from(0));
-		assert_eq!(Ethash::difficulty_to_boundary(&U256::from(1)), H256::from(U256::max_value()));
-		assert_eq!(Ethash::difficulty_to_boundary(&U256::from(2)), H256::from_str("8000000000000000000000000000000000000000000000000000000000000000").unwrap());
-		assert_eq!(Ethash::difficulty_to_boundary(&U256::from(4)), H256::from_str("4000000000000000000000000000000000000000000000000000000000000000").unwrap());
-		assert_eq!(Ethash::difficulty_to_boundary(&U256::from(32)), H256::from_str("0800000000000000000000000000000000000000000000000000000000000000").unwrap());
-	}
-
 	#[test]
 	fn difficulty_frontier() {
 		let machine = new_homestead_test_machine();

ethcore/src/ethereum/mod.rs

@@ -41,31 +41,31 @@ fn load_machine(b: &[u8]) -> EthereumMachine {
 	Spec::load_machine(b).expect("chain spec is invalid")
 }
 
-/// Create a new Foundation Olympic chain spec.
-pub fn new_olympic<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
-	load(params.into(), include_bytes!("../../res/ethereum/olympic.json"))
-}
-
-/// Create a new Foundation Mainnet chain spec.
+/// Create a new Foundation mainnet chain spec.
 pub fn new_foundation<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/foundation.json"))
 }
 
-/// Create a new Classic Mainnet chain spec without the DAO hardfork.
+/// Create a new Classic mainnet chain spec without the DAO hardfork.
 pub fn new_classic<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/classic.json"))
 }
 
+/// Create a new POA Network mainnet chain spec.
+pub fn new_poanet<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/poacore.json"))
+}
+
+/// Create a new Tobalaba mainnet chain spec.
+pub fn new_tobalaba<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/tobalaba.json"))
+}
+
 /// Create a new Expanse mainnet chain spec.
 pub fn new_expanse<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/expanse.json"))
 }
 
-/// Create a new Tobalaba chain spec.
-pub fn new_tobalaba<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
-	load(params.into(), include_bytes!("../../res/ethereum/tobalaba.json"))
-}
-
 /// Create a new Musicoin mainnet chain spec.
 pub fn new_musicoin<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/musicoin.json"))
@@ -86,19 +86,29 @@ pub fn new_social<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/social.json"))
 }
 
+/// Create a new Olympic testnet chain spec.
+pub fn new_olympic<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/olympic.json"))
+}
+
+/// Create a new Morden testnet chain spec.
+pub fn new_morden<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/morden.json"))
+}
+
+/// Create a new Ropsten testnet chain spec.
+pub fn new_ropsten<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/ropsten.json"))
+}
+
 /// Create a new Kovan testnet chain spec.
 pub fn new_kovan<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
 	load(params.into(), include_bytes!("../../res/ethereum/kovan.json"))
 }
 
-/// Create a new Foundation Ropsten chain spec.
-pub fn new_ropsten<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
-	load(params.into(), include_bytes!("../../res/ethereum/ropsten.json"))
-}
-
-/// Create a new Morden chain spec.
-pub fn new_morden<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
-	load(params.into(), include_bytes!("../../res/ethereum/morden.json"))
+/// Create a new POA Sokol testnet chain spec.
+pub fn new_sokol<'a, T: Into<SpecParams<'a>>>(params: T) -> Spec {
+	load(params.into(), include_bytes!("../../res/ethereum/poasokol.json"))
 }
 
 // For tests
@@ -141,6 +151,9 @@ pub fn new_frontier_test_machine() -> EthereumMachine { load_machine(include_byt
 /// Create a new Foundation Homestead-era chain spec as though it never changed from Frontier.
 pub fn new_homestead_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/homestead_test.json")) }
 
+/// Create a new Foundation Homestead-EIP210-era chain spec as though it never changed from Homestead/Frontier.
+pub fn new_eip210_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/eip210_test.json")) }
+
 /// Create a new Foundation Byzantium era spec.
 pub fn new_byzantium_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/byzantium_test.json")) }
 

ethcore/src/executive.rs

@@ -61,10 +61,13 @@ pub fn contract_address(address_scheme: CreateContractAddress, sender: &Address,
 			stream.append(nonce);
 			(From::from(keccak(stream.as_raw())), None)
 		},
-		CreateContractAddress::FromCodeHash => {
+		CreateContractAddress::FromSenderSaltAndCodeHash(salt) => {
 			let code_hash = keccak(code);
-			let mut buffer = [0xffu8; 20 + 32];
-			&mut buffer[20..].copy_from_slice(&code_hash[..]);
+			let mut buffer = [0u8; 1 + 20 + 32 + 32];
+			buffer[0] = 0xff;
+			&mut buffer[1..(1+20)].copy_from_slice(&sender[..]);
+			&mut buffer[(1+20)..(1+20+32)].copy_from_slice(&salt[..]);
+			&mut buffer[(1+20+32)..].copy_from_slice(&code_hash[..]);
 			(From::from(keccak(&buffer[..])), Some(code_hash))
 		},
 		CreateContractAddress::FromSenderAndCodeHash => {
@@ -285,7 +288,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let mut substate = Substate::new();
 
 		// NOTE: there can be no invalid transactions from this point.
-		if !schedule.eip86 || !t.is_unsigned() {
+		if !schedule.keep_unsigned_nonce || !t.is_unsigned() {
 			self.state.inc_nonce(&sender)?;
 		}
 		self.state.sub_balance(&sender, &U256::from(gas_cost), &mut substate.to_cleanup_mode(&schedule))?;
@@ -320,7 +323,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 					gas_price: t.gas_price,
 					value: ActionValue::Transfer(t.value),
 					code: self.state.code(address)?,
-					code_hash: Some(self.state.code_hash(address)?),
+					code_hash: self.state.code_hash(address)?,
 					data: Some(t.data.clone()),
 					call_type: CallType::Call,
 					params_type: vm::ParamsType::Separate,
@@ -557,9 +560,9 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let prev_bal = self.state.balance(&params.address)?;
 		if let ActionValue::Transfer(val) = params.value {
 			self.state.sub_balance(&params.sender, &val, &mut substate.to_cleanup_mode(&schedule))?;
-			self.state.new_contract(&params.address, val + prev_bal, nonce_offset);
+			self.state.new_contract(&params.address, val + prev_bal, nonce_offset)?;
 		} else {
-			self.state.new_contract(&params.address, prev_bal, nonce_offset);
+			self.state.new_contract(&params.address, prev_bal, nonce_offset)?;
 		}
 
 		let trace_info = tracer.prepare_trace_create(&params);
@@ -610,7 +613,8 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let schedule = self.machine.schedule(self.info.number);
 
 		// refunds from SSTORE nonzero -> zero
-		let sstore_refunds = U256::from(schedule.sstore_refund_gas) * substate.sstore_clears_count;
+		assert!(substate.sstore_clears_refund >= 0, "On transaction level, sstore clears refund cannot go below zero.");
+		let sstore_refunds = U256::from(substate.sstore_clears_refund as u64);
 		// refunds from contract suicides
 		let suicide_refunds = U256::from(schedule.suicide_refund_gas) * U256::from(substate.suicides.len());
 		let refunds_bound = sstore_refunds + suicide_refunds;
@@ -1584,6 +1588,65 @@ mod tests {
 		assert_eq!(state.storage_at(&contract_address, &H256::from(&U256::zero())).unwrap(), H256::from(&U256::from(0)));
 	}
 
+	evm_test!{test_eip1283: test_eip1283_int}
+	fn test_eip1283(factory: Factory) {
+		let x1 = Address::from(0x1000);
+		let x2 = Address::from(0x1001);
+		let y1 = Address::from(0x2001);
+		let y2 = Address::from(0x2002);
+		let operating_address = Address::from(0);
+		let k = H256::new();
+
+		let mut state = get_temp_state_with_factory(factory.clone());
+		state.new_contract(&x1, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&x1, "600160005560006000556001600055".from_hex().unwrap()).unwrap();
+		state.new_contract(&x2, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&x2, "600060005560016000556000600055".from_hex().unwrap()).unwrap();
+		state.new_contract(&y1, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&y1, "600060006000600061100062fffffff4".from_hex().unwrap()).unwrap();
+		state.new_contract(&y2, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&y2, "600060006000600061100162fffffff4".from_hex().unwrap()).unwrap();
+
+		let info = EnvInfo::default();
+		let machine = ::ethereum::new_constantinople_test_machine();
+
+		assert_eq!(state.storage_at(&operating_address, &k).unwrap(), H256::from(U256::from(0)));
+		// Test a call via top-level -> y1 -> x1
+		let (FinalizationResult { gas_left, .. }, refund, gas) = {
+			let gas = U256::from(0xffffffffffu64);
+			let mut params = ActionParams::default();
+			params.code = Some(Arc::new("6001600055600060006000600061200163fffffffff4".from_hex().unwrap()));
+			params.gas = gas;
+			let mut substate = Substate::new();
+			let mut ex = Executive::new(&mut state, &info, &machine);
+			let res = ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap();
+
+			(res, substate.sstore_clears_refund, gas)
+		};
+		let gas_used = gas - gas_left;
+		// sstore: 0 -> (1) -> () -> (1 -> 0 -> 1)
+		assert_eq!(gas_used, U256::from(41860));
+		assert_eq!(refund, 19800);
+
+		assert_eq!(state.storage_at(&operating_address, &k).unwrap(), H256::from(U256::from(1)));
+		// Test a call via top-level -> y2 -> x2
+		let (FinalizationResult { gas_left, .. }, refund, gas) = {
+			let gas = U256::from(0xffffffffffu64);
+			let mut params = ActionParams::default();
+			params.code = Some(Arc::new("6001600055600060006000600061200263fffffffff4".from_hex().unwrap()));
+			params.gas = gas;
+			let mut substate = Substate::new();
+			let mut ex = Executive::new(&mut state, &info, &machine);
+			let res = ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap();
+
+			(res, substate.sstore_clears_refund, gas)
+		};
+		let gas_used = gas - gas_left;
+		// sstore: 1 -> (1) -> () -> (0 -> 1 -> 0)
+		assert_eq!(gas_used, U256::from(11860));
+		assert_eq!(refund, 19800);
+	}
+
 	fn wasm_sample_code() -> Arc<Vec<u8>> {
 		Arc::new(
 			"0061736d01000000010d0360027f7f0060017f0060000002270303656e7603726574000003656e760673656e646572000103656e76066d656d6f727902010110030201020404017000000501000708010463616c6c00020901000ac10101be0102057f017e4100410028020441c0006b22043602042004412c6a41106a220041003602002004412c6a41086a22014200370200200441186a41106a22024100360200200441186a41086a220342003703002004420037022c2004410036021c20044100360218200441186a1001200020022802002202360200200120032903002205370200200441106a2002360200200441086a200537030020042004290318220537022c200420053703002004411410004100200441c0006a3602040b0b0a010041040b0410c00000"

ethcore/src/externalities.rs

@@ -111,6 +111,10 @@ impl<'a, T: 'a, V: 'a, B: 'a> Externalities<'a, T, V, B>
 impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 	where T: Tracer, V: VMTracer, B: StateBackend
 {
+	fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
+		self.state.checkpoint_storage_at(0, &self.origin_info.address, key).map(|v| v.unwrap_or(H256::zero())).map_err(Into::into)
+	}
+
 	fn storage_at(&self, key: &H256) -> vm::Result<H256> {
 		self.state.storage_at(&self.origin_info.address, key).map_err(Into::into)
 	}
@@ -163,7 +167,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 				gas: self.machine.params().eip210_contract_gas,
 				gas_price: 0.into(),
 				code: code,
-				code_hash: Some(code_hash),
+				code_hash: code_hash,
 				data: Some(H256::from(number).to_vec()),
 				call_type: CallType::Call,
 				params_type: vm::ParamsType::Separate,
@@ -219,7 +223,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		};
 
 		if !self.static_flag {
-			if !self.schedule.eip86 || params.sender != UNSIGNED_SENDER {
+			if !self.schedule.keep_unsigned_nonce || params.sender != UNSIGNED_SENDER {
 				if let Err(e) = self.state.inc_nonce(&self.origin_info.address) {
 					debug!(target: "ext", "Database corruption encountered: {:?}", e);
 					return ContractCreateResult::Failed
@@ -270,7 +274,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 			gas: *gas,
 			gas_price: self.origin_info.gas_price,
 			code: code,
-			code_hash: Some(code_hash),
+			code_hash: code_hash,
 			data: Some(data.to_vec()),
 			call_type: call_type,
 			params_type: vm::ParamsType::Separate,
@@ -289,12 +293,16 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		}
 	}
 
-	fn extcode(&self, address: &Address) -> vm::Result<Arc<Bytes>> {
-		Ok(self.state.code(address)?.unwrap_or_else(|| Arc::new(vec![])))
+	fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>> {
+		Ok(self.state.code(address)?)
 	}
 
-	fn extcodesize(&self, address: &Address) -> vm::Result<usize> {
-		Ok(self.state.code_size(address)?.unwrap_or(0))
+	fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
+		Ok(self.state.code_hash(address)?)
+	}
+
+	fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
+		Ok(self.state.code_size(address)?)
 	}
 
 	fn ret(mut self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
@@ -390,8 +398,12 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		self.depth
 	}
 
-	fn inc_sstore_clears(&mut self) {
-		self.substate.sstore_clears_count = self.substate.sstore_clears_count + U256::one();
+	fn add_sstore_refund(&mut self, value: usize) {
+		self.substate.sstore_clears_refund += value as i128;
+	}
+
+	fn sub_sstore_refund(&mut self, value: usize) {
+		self.substate.sstore_clears_refund -= value as i128;
 	}
 
 	fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
@@ -570,4 +582,44 @@ mod tests {
 
 		assert_eq!(setup.sub_state.suicides.len(), 1);
 	}
+
+	#[test]
+	fn can_create() {
+		use std::str::FromStr;
+
+		let mut setup = TestSetup::new();
+		let state = &mut setup.state;
+		let mut tracer = NoopTracer;
+		let mut vm_tracer = NoopVMTracer;
+
+		let address = {
+			let mut ext = Externalities::new(state, &setup.env_info, &setup.machine, 0, get_test_origin(), &mut setup.sub_state, OutputPolicy::InitContract(None), &mut tracer, &mut vm_tracer, false);
+			match ext.create(&U256::max_value(), &U256::zero(), &[], CreateContractAddress::FromSenderAndNonce) {
+				ContractCreateResult::Created(address, _) => address,
+				_ => panic!("Test create failed; expected Created, got Failed/Reverted."),
+			}
+		};
+
+		assert_eq!(address, Address::from_str("bd770416a3345f91e4b34576cb804a576fa48eb1").unwrap());
+	}
+
+	#[test]
+	fn can_create2() {
+		use std::str::FromStr;
+
+		let mut setup = TestSetup::new();
+		let state = &mut setup.state;
+		let mut tracer = NoopTracer;
+		let mut vm_tracer = NoopVMTracer;
+
+		let address = {
+			let mut ext = Externalities::new(state, &setup.env_info, &setup.machine, 0, get_test_origin(), &mut setup.sub_state, OutputPolicy::InitContract(None), &mut tracer, &mut vm_tracer, false);
+			match ext.create(&U256::max_value(), &U256::zero(), &[], CreateContractAddress::FromSenderSaltAndCodeHash(H256::default())) {
+				ContractCreateResult::Created(address, _) => address,
+				_ => panic!("Test create failed; expected Created, got Failed/Reverted."),
+			}
+		};
+
+		assert_eq!(address, Address::from_str("e33c0c7f7df4809055c3eba6c09cfe4baf1bd9e0").unwrap());
+	}
 }

ethcore/src/json_tests/chain.rs

@@ -23,6 +23,7 @@ use ethjson;
 use miner::Miner;
 use io::IoChannel;
 use test_helpers;
+use super::SKIP_TEST_STATE;
 
 use super::HookType;
 
@@ -36,12 +37,20 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, json_chain_test, h)
 }
 
+fn skip_test(name: &String) -> bool {
+	SKIP_TEST_STATE.block.iter().any(|block_test|block_test.subtests.contains(name))
+}
+
 pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::blockchain::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
 
 	for (name, blockchain) in tests.into_iter() {
+		if skip_test(&name) {
+			println!("   - {} | {:?} Ignoring tests because in skip list", name, blockchain.network);
+			continue;
+		}
 		start_stop_hook(&name, HookType::OnStart);
 
 		let mut fail = false;
@@ -122,19 +131,24 @@ mod block_tests {
 	declare_test!{BlockchainTests_bcInvalidHeaderTest, "BlockchainTests/bcInvalidHeaderTest"}
 	declare_test!{BlockchainTests_bcMultiChainTest, "BlockchainTests/bcMultiChainTest"}
 	declare_test!{BlockchainTests_bcRandomBlockhashTest, "BlockchainTests/bcRandomBlockhashTest"}
+	declare_test!{BlockchainTests_bcStateTest, "BlockchainTests/bcStateTests"}
 	declare_test!{BlockchainTests_bcTotalDifficultyTest, "BlockchainTests/bcTotalDifficultyTest"}
 	declare_test!{BlockchainTests_bcUncleHeaderValidity, "BlockchainTests/bcUncleHeaderValidity"}
 	declare_test!{BlockchainTests_bcUncleTest, "BlockchainTests/bcUncleTest"}
 	declare_test!{BlockchainTests_bcValidBlockTest, "BlockchainTests/bcValidBlockTest"}
 	declare_test!{BlockchainTests_bcWalletTest, "BlockchainTests/bcWalletTest"}
 
+	declare_test!{BlockchainTests_GeneralStateTest_stArgsZeroOneBalance, "BlockchainTests/GeneralStateTests/stArgsZeroOneBalance/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stAttackTest, "BlockchainTests/GeneralStateTests/stAttackTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stBadOpcodeTest, "BlockchainTests/GeneralStateTests/stBadOpcode/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stBugsTest, "BlockchainTests/GeneralStateTests/stBugs/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallCodes, "BlockchainTests/GeneralStateTests/stCallCodes/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stCallCreateCallCodeTest, "BlockchainTests/GeneralStateTests/stCallCreateCallCodeTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallDelegateCodesCallCodeHomestead, "BlockchainTests/GeneralStateTests/stCallDelegateCodesCallCodeHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallDelegateCodesHomestead, "BlockchainTests/GeneralStateTests/stCallDelegateCodesHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stChangedEIP150, "BlockchainTests/GeneralStateTests/stChangedEIP150/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCodeSizeLimit, "BlockchainTests/GeneralStateTests/stCodeSizeLimit/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stCreate2, "BlockchainTests/GeneralStateTests/stCreate2/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCreateTest, "BlockchainTests/GeneralStateTests/stCreateTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stDelegatecallTestHomestead, "BlockchainTests/GeneralStateTests/stDelegatecallTestHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stEIP150singleCodeGasPrices, "BlockchainTests/GeneralStateTests/stEIP150singleCodeGasPrices/"}
@@ -149,12 +163,15 @@ mod block_tests {
 	declare_test!{BlockchainTests_GeneralStateTest_stMemoryTest, "BlockchainTests/GeneralStateTests/stMemoryTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stNonZeroCallsTest, "BlockchainTests/GeneralStateTests/stNonZeroCallsTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stPreCompiledContracts, "BlockchainTests/GeneralStateTests/stPreCompiledContracts/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stPreCompiledContracts2, "BlockchainTests/GeneralStateTests/stPreCompiledContracts2/"}
 	declare_test!{heavy => BlockchainTests_GeneralStateTest_stQuadraticComplexityTest, "BlockchainTests/GeneralStateTests/stQuadraticComplexityTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRandom, "BlockchainTests/GeneralStateTests/stRandom/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stRandom2, "BlockchainTests/GeneralStateTests/stRandom2/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRecursiveCreate, "BlockchainTests/GeneralStateTests/stRecursiveCreate/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRefundTest, "BlockchainTests/GeneralStateTests/stRefundTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stReturnDataTest, "BlockchainTests/GeneralStateTests/stReturnDataTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRevertTest, "BlockchainTests/GeneralStateTests/stRevertTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stShift, "BlockchainTests/GeneralStateTests/stShift/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stSolidityTest, "BlockchainTests/GeneralStateTests/stSolidityTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stSpecialTest, "BlockchainTests/GeneralStateTests/stSpecialTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stStackTests, "BlockchainTests/GeneralStateTests/stStackTests/"}
@@ -166,6 +183,7 @@ mod block_tests {
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroCallsRevert, "BlockchainTests/GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroCallsTest, "BlockchainTests/GeneralStateTests/stZeroCallsTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroKnowledge, "BlockchainTests/GeneralStateTests/stZeroKnowledge/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stZeroKnowledge2, "BlockchainTests/GeneralStateTests/stZeroKnowledge2/"}
 
 	declare_test!{BlockchainTests_TransitionTests_bcEIP158ToByzantium, "BlockchainTests/TransitionTests/bcEIP158ToByzantium/"}
 	declare_test!{BlockchainTests_TransitionTests_bcFrontierToHomestead, "BlockchainTests/TransitionTests/bcFrontierToHomestead/"}

ethcore/src/json_tests/difficulty.rs

@@ -52,26 +52,62 @@ pub fn json_difficulty_test<H: FnMut(&str, HookType)>(json_data: &[u8], spec: Sp
 	vec![]
 }
 
-mod difficulty_test_byzantium {
-	use super::json_difficulty_test;
-	use json_tests::HookType;
+macro_rules! difficulty_json_test {
+	( $spec:ident ) => {
 
-	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
-		json_difficulty_test(json_data, ::ethereum::new_byzantium_test(), h)
-	}
-
-	declare_test!{DifficultyTests_difficultyByzantium, "BasicTests/difficultyByzantium.json"}
-}
-
-mod difficulty_test_foundation {
 	use super::json_difficulty_test;
 	use tempdir::TempDir;
 	use json_tests::HookType;
 
 	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
 		let tempdir = TempDir::new("").unwrap();
-		json_difficulty_test(json_data, ::ethereum::new_foundation(&tempdir.path()), h)
+		json_difficulty_test(json_data, ::ethereum::$spec(&tempdir.path()), h)
 	}
 
+	}
+}
+
+macro_rules! difficulty_json_test_nopath {
+	( $spec:ident ) => {
+
+	use super::json_difficulty_test;
+	use json_tests::HookType;
+
+	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
+		json_difficulty_test(json_data, ::ethereum::$spec(), h)
+	}
+
+	}
+}
+
+mod difficulty_test {
+	difficulty_json_test!(new_foundation);
+	declare_test!{DifficultyTests_difficulty, "BasicTests/difficulty.json"}
+}
+
+mod difficulty_test_byzantium {
+	difficulty_json_test_nopath!(new_byzantium_test);
+	declare_test!{DifficultyTests_difficultyByzantium, "BasicTests/difficultyByzantium.json"}
+}
+
+mod difficulty_test_foundation {
+	difficulty_json_test!(new_foundation);
 	declare_test!{DifficultyTests_difficultyMainNetwork, "BasicTests/difficultyMainNetwork.json"}
 }
+
+// Disabling Ropsten diff tests; waiting for upstream ethereum/tests Constantinople update
+//mod difficulty_test_ropsten {
+//	difficulty_json_test_nopath!(new_ropsten_test);
+//	declare_test!{DifficultyTests_difficultyRopsten, "BasicTests/difficultyRopsten.json"}
+//}
+
+mod difficulty_test_frontier {
+	difficulty_json_test_nopath!(new_frontier_test);
+	declare_test!{DifficultyTests_difficultyFrontier, "BasicTests/difficultyFrontier.json"}
+}
+
+mod difficulty_test_homestead {
+	difficulty_json_test_nopath!(new_homestead_test);
+	declare_test!{DifficultyTests_difficultyHomestead, "BasicTests/difficultyHomestead.json"}
+}
+

ethcore/src/json_tests/executive.rs

@@ -111,6 +111,10 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		self.ext.storage_at(key)
 	}
 
+	fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
+		self.ext.initial_storage_at(key)
+	}
+
 	fn set_storage(&mut self, key: H256, value: H256) -> vm::Result<()> {
 		self.ext.set_storage(key, value)
 	}
@@ -165,14 +169,18 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		MessageCallResult::Success(*gas, ReturnData::empty())
 	}
 
-	fn extcode(&self, address: &Address) -> vm::Result<Arc<Bytes>>  {
+	fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>>  {
 		self.ext.extcode(address)
 	}
 
-	fn extcodesize(&self, address: &Address) -> vm::Result<usize> {
+	fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
 		self.ext.extcodesize(address)
 	}
 
+	fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
+		self.ext.extcodehash(address)
+	}
+
 	fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
 		self.ext.log(topics, data)
 	}
@@ -201,8 +209,12 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		false
 	}
 
-	fn inc_sstore_clears(&mut self) {
-		self.ext.inc_sstore_clears()
+	fn add_sstore_refund(&mut self, value: usize) {
+		self.ext.add_sstore_refund(value)
+	}
+
+	fn sub_sstore_refund(&mut self, value: usize) {
+		self.ext.sub_sstore_refund(value)
 	}
 }
 

ethcore/src/json_tests/mod.rs

@@ -24,10 +24,12 @@ mod executive;
 mod state;
 mod chain;
 mod trie;
+mod skip;
 
 #[cfg(test)]
 mod difficulty;
 
+
 pub use self::test_common::HookType;
 
 pub use self::transaction::run_test_path as run_transaction_test_path;
@@ -42,3 +44,4 @@ pub use self::trie::run_generic_test_path as run_generic_trie_test_path;
 pub use self::trie::run_generic_test_file as run_generic_trie_test_file;
 pub use self::trie::run_secure_test_path as run_secure_trie_test_path;
 pub use self::trie::run_secure_test_file as run_secure_trie_test_file;
+use self::skip::SKIP_TEST_STATE;

ethcore/src/json_tests/skip.rs

@@ -14,14 +14,24 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Dapps Service
+//! State tests to skip.
 
-use v1::types::LocalDapp;
+use ethjson;
 
-/// Dapps Server service.
-pub trait DappsService: Send + Sync + 'static {
-	/// List available local dapps.
-	fn list_dapps(&self) -> Vec<LocalDapp>;
-	/// Refresh local dapps list
-	fn refresh_local_dapps(&self) -> bool;
+#[cfg(all(not(test), feature = "ci-skip-tests"))]
+compile_error!("ci-skip-tests can only be enabled for testing builds.");
+
+#[cfg(feature="ci-skip-issue")]
+lazy_static!{
+	pub static ref SKIP_TEST_STATE: ethjson::test::SkipStates = {
+		let skip_data = include_bytes!("../../res/ethereum/tests-issues/currents.json");
+		ethjson::test::SkipStates::load(&skip_data[..]).expect("No invalid json allowed")
+	};
+}
+
+#[cfg(not(feature="ci-skip-issue"))]
+lazy_static!{
+	pub static ref SKIP_TEST_STATE: ethjson::test::SkipStates = {
+		ethjson::test::SkipStates::empty()
+	};
 }

ethcore/src/json_tests/state.rs

@@ -22,7 +22,7 @@ use client::{EvmTestClient, EvmTestError, TransactResult};
 use ethjson;
 use transaction::SignedTransaction;
 use vm::EnvInfo;
-
+use super::SKIP_TEST_STATE;
 use super::HookType;
 
 /// Run state jsontests on a given folder.
@@ -35,6 +35,18 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, json_chain_test, h)
 }
 
+fn skip_test(subname: &str, chain: &String, number: usize) -> bool {
+	SKIP_TEST_STATE.state.iter().any(|state_test|{
+		if let Some(subtest) = state_test.subtests.get(subname) {
+			chain == &subtest.chain &&
+			(subtest.subnumbers[0] == "*"
+				 || subtest.subnumbers.contains(&number.to_string()))
+		} else {
+			false
+		}
+	})
+}
+
 pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::state::test::Test::load(json_data).unwrap();
@@ -60,6 +72,10 @@ pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_ho
 
 				for (i, state) in states.into_iter().enumerate() {
 					let info = format!("   - {} | {:?} ({}/{}) ...", name, spec_name, i + 1, total);
+					if skip_test(&name, &spec.name, i + 1) {
+						println!("{} in skip list : SKIPPED", info);
+						continue;
+					}
 
 					let post_root: H256 = state.hash.into();
 					let transaction: SignedTransaction = multitransaction.select(&state.indexes).into();
@@ -114,18 +130,24 @@ mod state_tests {
 		json_chain_test(json_data, h)
 	}
 
+	declare_test!{GeneralStateTest_stArgsZeroOneBalance, "GeneralStateTests/stArgsZeroOneBalance/"}
 	declare_test!{GeneralStateTest_stAttackTest, "GeneralStateTests/stAttackTest/"}
 	declare_test!{GeneralStateTest_stBadOpcodeTest, "GeneralStateTests/stBadOpcode/"}
+	declare_test!{GeneralStateTest_stBugs, "GeneralStateTests/stBugs/"}
 	declare_test!{GeneralStateTest_stCallCodes, "GeneralStateTests/stCallCodes/"}
+	declare_test!{GeneralStateTest_stCallCreateCallCodeTest, "GeneralStateTests/stCallCreateCallCodeTest/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesCallCodeHomestead, "GeneralStateTests/stCallDelegateCodesCallCodeHomestead/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesHomestead, "GeneralStateTests/stCallDelegateCodesHomestead/"}
 	declare_test!{GeneralStateTest_stChangedEIP150, "GeneralStateTests/stChangedEIP150/"}
+	declare_test!{GeneralStateTest_stCodeCopyTest, "GeneralStateTests/stCodeCopyTest/"}
 	declare_test!{GeneralStateTest_stCodeSizeLimit, "GeneralStateTests/stCodeSizeLimit/"}
+	declare_test!{GeneralStateTest_stCreate2Test, "GeneralStateTests/stCreate2/"}
 	declare_test!{GeneralStateTest_stCreateTest, "GeneralStateTests/stCreateTest/"}
 	declare_test!{GeneralStateTest_stDelegatecallTestHomestead, "GeneralStateTests/stDelegatecallTestHomestead/"}
 	declare_test!{GeneralStateTest_stEIP150singleCodeGasPrices, "GeneralStateTests/stEIP150singleCodeGasPrices/"}
 	declare_test!{GeneralStateTest_stEIP150Specific, "GeneralStateTests/stEIP150Specific/"}
 	declare_test!{GeneralStateTest_stEIP158Specific, "GeneralStateTests/stEIP158Specific/"}
+	declare_test!{GeneralStateTest_stEWASMTests, "GeneralStateTests/stEWASMTests/"}
 	declare_test!{GeneralStateTest_stExample, "GeneralStateTests/stExample/"}
 	declare_test!{GeneralStateTest_stHomesteadSpecific, "GeneralStateTests/stHomesteadSpecific/"}
 	declare_test!{GeneralStateTest_stInitCodeTest, "GeneralStateTests/stInitCodeTest/"}
@@ -135,12 +157,15 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stMemoryTest, "GeneralStateTests/stMemoryTest/"}
 	declare_test!{GeneralStateTest_stNonZeroCallsTest, "GeneralStateTests/stNonZeroCallsTest/"}
 	declare_test!{GeneralStateTest_stPreCompiledContracts, "GeneralStateTests/stPreCompiledContracts/"}
+	declare_test!{GeneralStateTest_stPreCompiledContracts2, "GeneralStateTests/stPreCompiledContracts2/"}
 	declare_test!{heavy => GeneralStateTest_stQuadraticComplexityTest, "GeneralStateTests/stQuadraticComplexityTest/"}
 	declare_test!{GeneralStateTest_stRandom, "GeneralStateTests/stRandom/"}
+	declare_test!{GeneralStateTest_stRandom2, "GeneralStateTests/stRandom2/"}
 	declare_test!{GeneralStateTest_stRecursiveCreate, "GeneralStateTests/stRecursiveCreate/"}
 	declare_test!{GeneralStateTest_stRefundTest, "GeneralStateTests/stRefundTest/"}
 	declare_test!{GeneralStateTest_stReturnDataTest, "GeneralStateTests/stReturnDataTest/"}
 	declare_test!{GeneralStateTest_stRevertTest, "GeneralStateTests/stRevertTest/"}
+	declare_test!{GeneralStateTest_stShift, "GeneralStateTests/stShift/"}
 	declare_test!{GeneralStateTest_stSolidityTest, "GeneralStateTests/stSolidityTest/"}
 	declare_test!{GeneralStateTest_stSpecialTest, "GeneralStateTests/stSpecialTest/"}
 	declare_test!{GeneralStateTest_stStackTests, "GeneralStateTests/stStackTests/"}
@@ -152,4 +177,11 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stZeroCallsRevert, "GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{GeneralStateTest_stZeroCallsTest, "GeneralStateTests/stZeroCallsTest/"}
 	declare_test!{GeneralStateTest_stZeroKnowledge, "GeneralStateTests/stZeroKnowledge/"}
+
+	// Attempts to send a transaction that requires more than current balance:
+	// Tx:
+	// https://github.com/ethereum/tests/blob/726b161ba8a739691006cc1ba080672bb50a9d49/GeneralStateTests/stZeroKnowledge2/ecmul_0-3_5616_28000_96.json#L170
+	// Balance:
+	// https://github.com/ethereum/tests/blob/726b161ba8a739691006cc1ba080672bb50a9d49/GeneralStateTests/stZeroKnowledge2/ecmul_0-3_5616_28000_96.json#L126
+	declare_test!{GeneralStateTest_stZeroKnowledge2, "GeneralStateTests/stZeroKnowledge2/"}
 }

ethcore/src/json_tests/test_common.rs

@@ -34,6 +34,18 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 	p: &Path, skip: &[&'static str],
 	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
 	start_stop_hook: &mut H
+) {
+	let mut errors = Vec::new();
+	run_test_path_inner(p, skip, runner, start_stop_hook, &mut errors);
+	let empty: [String; 0] = [];
+	assert_eq!(errors, empty);
+}
+
+fn run_test_path_inner<H: FnMut(&str, HookType)>(
+	p: &Path, skip: &[&'static str],
+	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
+	start_stop_hook: &mut H,
+	errors: &mut Vec<String>
 ) {
 	let path = Path::new(p);
 	let s: HashSet<OsString> = skip.iter().map(|s| {
@@ -41,6 +53,7 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 		os.push(".json");
 		os
 	}).collect();
+	let extension = path.extension().and_then(|s| s.to_str());
 	if path.is_dir() {
 		for p in read_dir(path).unwrap().filter_map(|e| {
 			let e = e.unwrap();
@@ -49,22 +62,42 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 			} else {
 				Some(e.path())
 			}}) {
-			run_test_path(&p, skip, runner, start_stop_hook)
+			run_test_path_inner(&p, skip, runner, start_stop_hook, errors);
 		}
+	} else if extension == Some("swp") || extension == None {
+		// Ignore junk
 	} else {
 		let mut path = p.to_path_buf();
 		path.set_extension("json");
-		run_test_file(&path, runner, start_stop_hook)
+		run_test_file_append(&path, runner, start_stop_hook, errors)
 	}
 }
 
+fn run_test_file_append<H: FnMut(&str, HookType)>(
+	path: &Path,
+	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
+	start_stop_hook: &mut H,
+	errors: &mut Vec<String>
+) {
+	let mut data = Vec::new();
+	let mut file = match File::open(&path) {
+		Ok(file) => file,
+		Err(_) => panic!("Error opening test file at: {:?}", path),
+	};
+	file.read_to_end(&mut data).expect("Error reading test file");
+	errors.append(&mut runner(&data, start_stop_hook));
+}
+
 pub fn run_test_file<H: FnMut(&str, HookType)>(
 	path: &Path,
 	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
 	start_stop_hook: &mut H
 ) {
 	let mut data = Vec::new();
-	let mut file = File::open(&path).expect("Error opening test file");
+	let mut file = match File::open(&path) {
+		Ok(file) => file,
+		Err(_) => panic!("Error opening test file at: {:?}", path),
+	};
 	file.read_to_end(&mut data).expect("Error reading test file");
 	let results = runner(&data, start_stop_hook);
 	let empty: [String; 0] = [];

ethcore/src/json_tests/transaction.rs

@@ -16,10 +16,11 @@
 
 use std::path::Path;
 use super::test_common::*;
-use evm;
+use client::EvmTestClient;
+use header::Header;
 use ethjson;
 use rlp::Rlp;
-use transaction::{Action, UnverifiedTransaction, SignedTransaction};
+use transaction::UnverifiedTransaction;
 
 /// Run transaction jsontests on a given folder.
 pub fn run_test_path<H: FnMut(&str, HookType)>(p: &Path, skip: &[&'static str], h: &mut H) {
@@ -31,55 +32,61 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, do_json_test, h)
 }
 
+// Block number used to run the tests.
+// Make sure that all the specified features are activated.
+const BLOCK_NUMBER: u64 = 0x6ffffffffffffe;
+
 fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	let tests = ethjson::transaction::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
-	let frontier_schedule = evm::Schedule::new_frontier();
-	let homestead_schedule = evm::Schedule::new_homestead();
-	let byzantium_schedule = evm::Schedule::new_byzantium();
 	for (name, test) in tests.into_iter() {
 		start_stop_hook(&name, HookType::OnStart);
 
-		let mut fail_unless = |cond: bool, title: &str| if !cond { failed.push(name.clone()); println!("Transaction failed: {:?}: {:?}", name, title); };
-
-		let number: Option<u64> = test.block_number.map(Into::into);
-		let schedule = match number {
-			None => &frontier_schedule,
-			Some(x) if x < 1_150_000 => &frontier_schedule,
-			Some(x) if x < 3_000_000 => &homestead_schedule,
-			Some(_) => &byzantium_schedule
-		};
-		let allow_chain_id_of_one = number.map_or(false, |n| n >= 2_675_000);
-		let allow_unsigned = number.map_or(false, |n| n >= 3_000_000);
-
-		let rlp: Vec<u8> = test.rlp.into();
-		let res = Rlp::new(&rlp)
-			.as_val()
-			.map_err(::error::Error::from)
-			.and_then(|t: UnverifiedTransaction| {
-				t.validate(schedule, schedule.have_delegate_call, allow_chain_id_of_one, allow_unsigned).map_err(Into::into)
-			});
-
-		fail_unless(test.transaction.is_none() == res.is_err(), "Validity different");
-		if let (Some(tx), Some(sender)) = (test.transaction, test.sender) {
-			let t = res.unwrap();
-			fail_unless(SignedTransaction::new(t.clone()).unwrap().sender() == sender.into(), "sender mismatch");
-			let is_acceptable_chain_id = match t.chain_id() {
-				None => true,
-				Some(1) if allow_chain_id_of_one => true,
-				_ => false,
+		for (spec_name, result) in test.post_state {
+			let spec = match EvmTestClient::spec_from_json(&spec_name) {
+				Some(spec) => spec,
+				None => {
+					println!("   - {} | {:?} Ignoring tests because of missing spec", name, spec_name);
+					continue;
+				}
 			};
-			fail_unless(is_acceptable_chain_id, "Network ID unacceptable");
-			let data: Vec<u8> = tx.data.into();
-			fail_unless(t.data == data, "data mismatch");
-			fail_unless(t.gas_price == tx.gas_price.into(), "gas_price mismatch");
-			fail_unless(t.nonce == tx.nonce.into(), "nonce mismatch");
-			fail_unless(t.value == tx.value.into(), "value mismatch");
-			let to: Option<ethjson::hash::Address> = tx.to.into();
-			let to: Option<Address> = to.map(Into::into);
-			match t.action {
-				Action::Call(dest) => fail_unless(Some(dest) == to, "call/destination mismatch"),
-				Action::Create => fail_unless(None == to, "create mismatch"),
+
+			let mut fail_unless = |cond: bool, title: &str| if !cond {
+				failed.push(format!("{}-{:?}", name, spec_name));
+				println!("Transaction failed: {:?}-{:?}: {:?}", name, spec_name, title);
+			};
+
+			let rlp: Vec<u8> = test.rlp.clone().into();
+			let res = Rlp::new(&rlp)
+				.as_val()
+				.map_err(::error::Error::from)
+				.and_then(|t: UnverifiedTransaction| {
+					let mut header: Header = Default::default();
+					// Use high enough number to activate all required features.
+					header.set_number(BLOCK_NUMBER);
+
+					let minimal = t.gas_required(&spec.engine.schedule(header.number())).into();
+					if t.gas < minimal {
+						return Err(::transaction::Error::InsufficientGas {
+							minimal, got: t.gas,
+						}.into());
+					}
+					spec.engine.verify_transaction_basic(&t, &header)?;
+					Ok(spec.engine.verify_transaction_unordered(t, &header)?)
+				});
+
+			match (res, result.hash, result.sender) {
+				(Ok(t), Some(hash), Some(sender)) => {
+					fail_unless(t.sender() == sender.into(), "sender mismatch");
+					fail_unless(t.hash() == hash.into(), "hash mismatch");
+				},
+				(Err(_), None, None) => {},
+				data => {
+					fail_unless(
+						false,
+						&format!("Validity different: {:?}", data)
+					);
+				}
 			}
 		}
 
@@ -92,13 +99,14 @@ fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mu
 	failed
 }
 
-declare_test!{TransactionTests_ttEip155VitaliksHomesead, "TransactionTests/ttEip155VitaliksHomesead"}
-declare_test!{TransactionTests_ttEip155VitaliksEip158, "TransactionTests/ttEip155VitaliksEip158"}
-declare_test!{TransactionTests_ttEip158, "TransactionTests/ttEip158"}
-declare_test!{TransactionTests_ttFrontier, "TransactionTests/ttFrontier"}
-declare_test!{TransactionTests_ttHomestead, "TransactionTests/ttHomestead"}
-declare_test!{TransactionTests_ttVRuleEip158, "TransactionTests/ttVRuleEip158"}
-declare_test!{TransactionTests_ttWrongRLPFrontier, "TransactionTests/ttWrongRLPFrontier"}
-declare_test!{TransactionTests_ttWrongRLPHomestead, "TransactionTests/ttWrongRLPHomestead"}
-declare_test!{TransactionTests_ttConstantinople, "TransactionTests/ttConstantinople"}
-declare_test!{TransactionTests_ttSpecConstantinople, "TransactionTests/ttSpecConstantinople"}
+declare_test!{TransactionTests_ttAddress, "TransactionTests/ttAddress"}
+declare_test!{TransactionTests_ttData, "TransactionTests/ttData"}
+declare_test!{TransactionTests_ttGasLimit, "TransactionTests/ttGasLimit"}
+declare_test!{TransactionTests_ttGasPrice, "TransactionTests/ttGasPrice"}
+declare_test!{TransactionTests_ttNonce, "TransactionTests/ttNonce"}
+declare_test!{TransactionTests_ttRSValue, "TransactionTests/ttRSValue"}
+declare_test!{TransactionTests_ttSignature, "TransactionTests/ttSignature"}
+declare_test!{TransactionTests_ttValue, "TransactionTests/ttValue"}
+declare_test!{TransactionTests_ttVValue, "TransactionTests/ttVValue"}
+declare_test!{TransactionTests_ttWrongRLP, "TransactionTests/ttWrongRLP"}
+

ethcore/src/machine.rs

@@ -140,7 +140,7 @@ impl EthereumMachine {
 			gas_price: 0.into(),
 			value: ActionValue::Transfer(0.into()),
 			code: state.code(&contract_address)?,
-			code_hash: Some(state.code_hash(&contract_address)?),
+			code_hash: state.code_hash(&contract_address)?,
 			data: data,
 			call_type: CallType::Call,
 			params_type: ParamsType::Separate,
@@ -309,12 +309,8 @@ impl EthereumMachine {
 	}
 
 	/// Returns new contract address generation scheme at given block number.
-	pub fn create_address_scheme(&self, number: BlockNumber) -> CreateContractAddress {
-		if number >= self.params().eip86_transition {
-			CreateContractAddress::FromCodeHash
-		} else {
-			CreateContractAddress::FromSenderAndNonce
-		}
+	pub fn create_address_scheme(&self, _number: BlockNumber) -> CreateContractAddress {
+		CreateContractAddress::FromSenderAndNonce
 	}
 
 	/// Verify a particular transaction is valid, regardless of order.

ethcore/src/miner/miner.rs

@@ -28,6 +28,7 @@ use ethcore_miner::pool::{self, TransactionQueue, VerifiedTransaction, QueueStat
 #[cfg(feature = "work-notify")]
 use ethcore_miner::work_notify::NotifyWork;
 use ethereum_types::{H256, U256, Address};
+use io::IoChannel;
 use parking_lot::{Mutex, RwLock};
 use rayon::prelude::*;
 use transaction::{
@@ -44,7 +45,7 @@ use block::{ClosedBlock, IsBlock, Block, SealedBlock};
 use client::{
 	BlockChain, ChainInfo, CallContract, BlockProducer, SealedBlockImporter, Nonce
 };
-use client::BlockId;
+use client::{BlockId, ClientIoMessage};
 use executive::contract_address;
 use header::{Header, BlockNumber};
 use miner;
@@ -96,7 +97,7 @@ const DEFAULT_MINIMAL_GAS_PRICE: u64 = 20_000_000_000;
 /// before stopping attempts to push more transactions to the block.
 /// This is an optimization that prevents traversing the entire pool
 /// in case we have only a fraction of available block gas limit left.
-const MAX_SKIPPED_TRANSACTIONS: usize = 8;
+const MAX_SKIPPED_TRANSACTIONS: usize = 128;
 
 /// Configures the behaviour of the miner.
 #[derive(Debug, PartialEq)]
@@ -211,6 +212,7 @@ pub struct Miner {
 	transaction_queue: Arc<TransactionQueue>,
 	engine: Arc<EthEngine>,
 	accounts: Option<Arc<AccountProvider>>,
+	io_channel: RwLock<Option<IoChannel<ClientIoMessage>>>,
 }
 
 impl Miner {
@@ -227,7 +229,12 @@ impl Miner {
 	}
 
 	/// Creates new instance of miner Arc.
-	pub fn new(options: MinerOptions, gas_pricer: GasPricer, spec: &Spec, accounts: Option<Arc<AccountProvider>>) -> Self {
+	pub fn new(
+		options: MinerOptions,
+		gas_pricer: GasPricer,
+		spec: &Spec,
+		accounts: Option<Arc<AccountProvider>>,
+	) -> Self {
 		let limits = options.pool_limits.clone();
 		let verifier_options = options.pool_verification_options.clone();
 		let tx_queue_strategy = options.tx_queue_strategy;
@@ -251,6 +258,7 @@ impl Miner {
 			transaction_queue: Arc::new(TransactionQueue::new(limits, verifier_options, tx_queue_strategy)),
 			accounts,
 			engine: spec.engine.clone(),
+			io_channel: RwLock::new(None),
 		}
 	}
 
@@ -270,6 +278,11 @@ impl Miner {
 		}, GasPricer::new_fixed(minimal_gas_price), spec, accounts)
 	}
 
+	/// Sets `IoChannel`
+	pub fn set_io_channel(&self, io_channel: IoChannel<ClientIoMessage>) {
+		*self.io_channel.write() = Some(io_channel);
+	}
+
 	/// Clear all pending block states
 	pub fn clear(&self) {
 		self.sealing.lock().queue.reset();
@@ -293,14 +306,15 @@ impl Miner {
 	/// Retrieves an existing pending block iff it's not older than given block number.
 	///
 	/// NOTE: This will not prepare a new pending block if it's not existing.
-	/// See `map_pending_block` for alternative behaviour.
 	fn map_existing_pending_block<F, T>(&self, f: F, latest_block_number: BlockNumber) -> Option<T> where
 		F: FnOnce(&ClosedBlock) -> T,
 	{
 		self.sealing.lock().queue
 			.peek_last_ref()
 			.and_then(|b| {
-				if b.block().header().number() > latest_block_number {
+				// to prevent a data race between block import and updating pending block
+				// we allow the number to be equal.
+				if b.block().header().number() >= latest_block_number {
 					Some(f(b))
 				} else {
 					None
@@ -339,7 +353,7 @@ impl Miner {
 			//   if at least one was pushed successfully, close and enqueue new ClosedBlock;
 			//   otherwise, leave everything alone.
 			// otherwise, author a fresh block.
-			let mut open_block = match sealing.queue.pop_if(|b| b.block().header().parent_hash() == &best_hash) {
+			let mut open_block = match sealing.queue.get_pending_if(|b| b.block().header().parent_hash() == &best_hash) {
 				Some(old_block) => {
 					trace!(target: "miner", "prepare_block: Already have previous work; updating and returning");
 					// add transactions to old_block
@@ -384,7 +398,7 @@ impl Miner {
 		let max_transactions = if min_tx_gas.is_zero() {
 			usize::max_value()
 		} else {
-			(*open_block.block().header().gas_limit() / min_tx_gas).as_u64() as usize
+			MAX_SKIPPED_TRANSACTIONS.saturating_add(cmp::min(*open_block.block().header().gas_limit() / min_tx_gas, u64::max_value().into()).as_u64() as usize)
 		};
 
 		let pending: Vec<Arc<_>> = self.transaction_queue.pending(
@@ -589,7 +603,7 @@ impl Miner {
 				{
 					let mut sealing = self.sealing.lock();
 					sealing.next_mandatory_reseal = Instant::now() + self.options.reseal_max_period;
-					sealing.queue.push(block.clone());
+					sealing.queue.set_pending(block.clone());
 					sealing.queue.use_last_ref();
 				}
 
@@ -651,7 +665,7 @@ impl Miner {
 				);
 				let is_new = original_work_hash.map_or(true, |h| h != block_hash);
 
-				sealing.queue.push(block);
+				sealing.queue.set_pending(block);
 
 				#[cfg(feature = "work-notify")]
 				{
@@ -1042,10 +1056,12 @@ impl miner::MinerService for Miner {
 
 		// refuse to seal the first block of the chain if it contains hard forks
 		// which should be on by default.
-		if block.block().header().number() == 1 && self.engine.params().contains_bugfix_hard_fork() {
-			warn!("Your chain specification contains one or more hard forks which are required to be \
-				on by default. Please remove these forks and start your chain again.");
-			return;
+		if block.block().header().number() == 1 {
+			if let Some(name) = self.engine.params().nonzero_bugfix_hard_fork() {
+				warn!("Your chain specification contains one or more hard forks which are required to be \
+					   on by default. Please remove these forks and start your chain again: {}.", name);
+				return;
+			}
 		}
 
 		match self.engine.seals_internally() {
@@ -1058,7 +1074,7 @@ impl miner::MinerService for Miner {
 			Some(false) => {
 				trace!(target: "miner", "update_sealing: engine is not keen to seal internally right now");
 				// anyway, save the block for later use
-				self.sealing.lock().queue.push(block);
+				self.sealing.lock().queue.set_pending(block);
 			},
 			None => {
 				trace!(target: "miner", "update_sealing: engine does not seal internally, preparing work");
@@ -1176,7 +1192,32 @@ impl miner::MinerService for Miner {
 			// (thanks to Ready), but culling can take significant amount of time,
 			// so best to leave it after we create some work for miners to prevent increased
 			// uncle rate.
-			self.transaction_queue.cull(client);
+			// If the io_channel is available attempt to offload culling to a separate task
+			// to avoid blocking chain_new_blocks
+			if let Some(ref channel) = *self.io_channel.read() {
+				let queue = self.transaction_queue.clone();
+				let nonce_cache = self.nonce_cache.clone();
+				let engine = self.engine.clone();
+				let accounts = self.accounts.clone();
+				let refuse_service_transactions = self.options.refuse_service_transactions;
+
+				let cull = move |chain: &::client::Client| {
+					let client = PoolClient::new(
+						chain,
+						&nonce_cache,
+						&*engine,
+						accounts.as_ref().map(|x| &**x),
+						refuse_service_transactions,
+					);
+					queue.cull(client);
+				};
+
+				if let Err(e) = channel.send(ClientIoMessage::execute(cull)) {
+					warn!(target: "miner", "Error queueing cull: {:?}", e);
+				}
+			} else {
+				self.transaction_queue.cull(client);
+			}
 		}
 	}
 

ethcore/src/miner/pool_client.rs

@@ -16,8 +16,11 @@
 
 //! Blockchain access for transaction pool.
 
-use std::fmt;
-use std::collections::HashMap;
+use std::{
+	collections::HashMap,
+	fmt,
+	sync::Arc,
+};
 
 use ethereum_types::{H256, U256, Address};
 use ethcore_miner::pool;
@@ -37,9 +40,9 @@ use miner;
 use miner::service_transaction_checker::ServiceTransactionChecker;
 
 /// Cache for state nonces.
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct NonceCache {
-	nonces: RwLock<HashMap<Address, U256>>,
+	nonces: Arc<RwLock<HashMap<Address, U256>>>,
 	limit: usize
 }
 
@@ -47,7 +50,7 @@ impl NonceCache {
 	/// Create new cache with a limit of `limit` entries.
 	pub fn new(limit: usize) -> Self {
 		NonceCache {
-			nonces: RwLock::new(HashMap::with_capacity(limit / 2)),
+			nonces: Arc::new(RwLock::new(HashMap::with_capacity(limit / 2))),
 			limit,
 		}
 	}

ethcore/src/miner/stratum.rs

@@ -22,8 +22,7 @@ use std::fmt;
 
 use client::{Client, ImportSealedBlock};
 use ethereum_types::{H64, H256, clean_0x, U256};
-use ethereum::ethash::Ethash;
-use ethash::SeedHashCompute;
+use ethash::{self, SeedHashCompute};
 #[cfg(feature = "work-notify")]
 use ethcore_miner::work_notify::NotifyWork;
 #[cfg(feature = "work-notify")]
@@ -167,7 +166,7 @@ impl StratumJobDispatcher {
 	/// Serializes payload for stratum service
 	fn payload(&self, pow_hash: H256, difficulty: U256, number: u64) -> String {
 		// TODO: move this to engine
-		let target = Ethash::difficulty_to_boundary(&difficulty);
+		let target = ethash::difficulty_to_boundary(&difficulty);
 		let seed_hash = &self.seed_compute.lock().hash_block_number(number);
 		let seed_hash = H256::from_slice(&seed_hash[..]);
 		format!(

ethcore/src/spec/spec.rs

@@ -57,7 +57,7 @@ fn fmt_err<F: ::std::fmt::Display>(f: F) -> String {
 
 /// Parameters common to ethereum-like blockchains.
 /// NOTE: when adding bugfix hard-fork parameters,
-/// add to `contains_bugfix_hard_fork`
+/// add to `nonzero_bugfix_hard_fork`
 ///
 /// we define a "bugfix" hard fork as any hard fork which
 /// you would put on-by-default in a new chain.
@@ -96,8 +96,6 @@ pub struct CommonParams {
 	pub validate_receipts_transition: BlockNumber,
 	/// Validate transaction chain id.
 	pub validate_chain_id_transition: BlockNumber,
-	/// Number of first block where EIP-86 (Metropolis) rules begin.
-	pub eip86_transition: BlockNumber,
 	/// Number of first block where EIP-140 (Metropolis: REVERT opcode) rules begin.
 	pub eip140_transition: BlockNumber,
 	/// Number of first block where EIP-210 (Metropolis: BLOCKHASH changes) rules begin.
@@ -115,6 +113,12 @@ pub struct CommonParams {
 	pub eip214_transition: BlockNumber,
 	/// Number of first block where EIP-145 rules begin.
 	pub eip145_transition: BlockNumber,
+	/// Number of first block where EIP-1052 rules begin.
+	pub eip1052_transition: BlockNumber,
+	/// Number of first block where EIP-1283 rules begin.
+	pub eip1283_transition: BlockNumber,
+	/// Number of first block where EIP-1014 rules begin.
+	pub eip1014_transition: BlockNumber,
 	/// Number of first block where dust cleanup rules (EIP-168 and EIP169) begin.
 	pub dust_protection_transition: BlockNumber,
 	/// Nonce cap increase per block. Nonce cap is only checked if dust protection is enabled.
@@ -123,6 +127,10 @@ pub struct CommonParams {
 	pub remove_dust_contracts: bool,
 	/// Wasm activation blocknumber, if any disabled initially.
 	pub wasm_activation_transition: BlockNumber,
+	/// Number of first block where KIP-4 rules begin. Only has effect if Wasm is activated.
+	pub kip4_transition: BlockNumber,
+	/// Number of first block where KIP-6 rules begin. Only has effect if Wasm is activated.
+	pub kip6_transition: BlockNumber,
 	/// Gas limit bound divisor (how much gas limit can change per block)
 	pub gas_limit_bound_divisor: U256,
 	/// Registrar contract address.
@@ -169,11 +177,13 @@ impl CommonParams {
 
 	/// Apply common spec config parameters to the schedule.
 	pub fn update_schedule(&self, block_number: u64, schedule: &mut ::vm::Schedule) {
-		schedule.have_create2 = block_number >= self.eip86_transition;
+		schedule.have_create2 = block_number >= self.eip1014_transition;
 		schedule.have_revert = block_number >= self.eip140_transition;
 		schedule.have_static_call = block_number >= self.eip214_transition;
 		schedule.have_return_data = block_number >= self.eip211_transition;
 		schedule.have_bitwise_shifting = block_number >= self.eip145_transition;
+		schedule.have_extcodehash = block_number >= self.eip1052_transition;
+		schedule.eip1283 = block_number >= self.eip1283_transition;
 		if block_number >= self.eip210_transition {
 			schedule.blockhash_gas = 800;
 		}
@@ -184,17 +194,32 @@ impl CommonParams {
 			};
 		}
 		if block_number >= self.wasm_activation_transition {
-			schedule.wasm = Some(Default::default());
+			let mut wasm = ::vm::WasmCosts::default();
+			if block_number >= self.kip4_transition {
+				wasm.have_create2 = true;
+			}
+			if block_number >= self.kip6_transition {
+				wasm.have_gasleft = true;
+			}
+			schedule.wasm = Some(wasm);
 		}
 	}
 
-	/// Whether these params contain any bug-fix hard forks.
-	pub fn contains_bugfix_hard_fork(&self) -> bool {
-		self.eip98_transition != 0 && self.eip155_transition != 0 &&
-			self.validate_receipts_transition != 0 && self.eip86_transition != 0 &&
-			self.eip140_transition != 0 && self.eip210_transition != 0 &&
-			self.eip211_transition != 0 && self.eip214_transition != 0 &&
-			self.validate_chain_id_transition != 0 && self.dust_protection_transition != 0
+	/// Return Some if the current parameters contain a bugfix hard fork not on block 0.
+	pub fn nonzero_bugfix_hard_fork(&self) -> Option<&str> {
+		if self.eip155_transition != 0 {
+			return Some("eip155Transition");
+		}
+
+		if self.validate_receipts_transition != 0 {
+			return Some("validateReceiptsTransition");
+		}
+
+		if self.validate_chain_id_transition != 0 {
+			return Some("validateChainIdTransition");
+		}
+
+		None
 	}
 }
 
@@ -224,10 +249,6 @@ impl From<ethjson::spec::Params> for CommonParams {
 			eip155_transition: p.eip155_transition.map_or(0, Into::into),
 			validate_receipts_transition: p.validate_receipts_transition.map_or(0, Into::into),
 			validate_chain_id_transition: p.validate_chain_id_transition.map_or(0, Into::into),
-			eip86_transition: p.eip86_transition.map_or_else(
-				BlockNumber::max_value,
-				Into::into,
-			),
 			eip140_transition: p.eip140_transition.map_or_else(
 				BlockNumber::max_value,
 				Into::into,
@@ -262,6 +283,18 @@ impl From<ethjson::spec::Params> for CommonParams {
 				BlockNumber::max_value,
 				Into::into,
 			),
+			eip1052_transition: p.eip1052_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
+			eip1283_transition: p.eip1283_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
+			eip1014_transition: p.eip1014_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
 			dust_protection_transition: p.dust_protection_transition.map_or_else(
 				BlockNumber::max_value,
 				Into::into,
@@ -279,6 +312,14 @@ impl From<ethjson::spec::Params> for CommonParams {
 				BlockNumber::max_value,
 				Into::into
 			),
+			kip4_transition: p.kip4_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into
+			),
+			kip6_transition: p.kip6_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into
+			),
 		}
 	}
 }
@@ -821,14 +862,13 @@ impl Spec {
 				data: d,
 			}.fake_sign(from);
 
-			let res = ::state::prove_transaction(
+			let res = ::state::prove_transaction_virtual(
 				db.as_hashdb_mut(),
 				*genesis.state_root(),
 				&tx,
 				self.engine.machine(),
 				&env_info,
 				factories.clone(),
-				true,
 			);
 
 			res.map(|(out, proof)| {

ethcore/src/state/account.rs

@@ -59,6 +59,10 @@ pub struct Account {
 	// LRU Cache of the trie-backed storage.
 	// This is limited to `STORAGE_CACHE_ITEMS` recent queries
 	storage_cache: RefCell<LruCache<H256, H256>>,
+	// LRU Cache of the trie-backed storage for original value.
+	// This is only used when the initial storage root is different compared to
+	// what is in the database. That is, it is only used for new contracts.
+	original_storage_cache: Option<(H256, RefCell<LruCache<H256, H256>>)>,
 	// Modified storage. Accumulates changes to storage made in `set_storage`
 	// Takes precedence over `storage_cache`.
 	storage_changes: HashMap<H256, H256>,
@@ -81,6 +85,7 @@ impl From<BasicAccount> for Account {
 			nonce: basic.nonce,
 			storage_root: basic.storage_root,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: HashMap::new(),
 			code_hash: basic.code_hash,
 			code_size: None,
@@ -100,6 +105,7 @@ impl Account {
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: storage,
 			code_hash: keccak(&code),
 			code_size: Some(code.len()),
@@ -120,6 +126,7 @@ impl Account {
 			nonce: pod.nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: pod.storage.into_iter().collect(),
 			code_hash: pod.code.as_ref().map_or(KECCAK_EMPTY, |c| keccak(c)),
 			code_filth: Filth::Dirty,
@@ -136,6 +143,7 @@ impl Account {
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: HashMap::new(),
 			code_hash: KECCAK_EMPTY,
 			code_cache: Arc::new(vec![]),
@@ -154,12 +162,17 @@ impl Account {
 
 	/// Create a new contract account.
 	/// NOTE: make sure you use `init_code` on this before `commit`ing.
-	pub fn new_contract(balance: U256, nonce: U256) -> Account {
+	pub fn new_contract(balance: U256, nonce: U256, original_storage_root: H256) -> Account {
 		Account {
 			balance: balance,
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: if original_storage_root == KECCAK_NULL_RLP {
+				None
+			} else {
+				Some((original_storage_root, Self::empty_storage_cache()))
+			},
 			storage_changes: HashMap::new(),
 			code_hash: KECCAK_EMPTY,
 			code_cache: Arc::new(vec![]),
@@ -204,11 +217,43 @@ impl Account {
 		if let Some(value) = self.cached_storage_at(key) {
 			return Ok(value);
 		}
-		let db = SecTrieDB::new(db, &self.storage_root)?;
+		Self::get_and_cache_storage(
+			&self.storage_root,
+			&mut self.storage_cache.borrow_mut(),
+			db,
+			key)
+	}
+
+	/// Get (and cache) the contents of the trie's storage at `key`.
+	/// Does not take modified storage into account.
+	pub fn original_storage_at(&self, db: &HashDB<KeccakHasher>, key: &H256) -> TrieResult<H256> {
+		if let Some(value) = self.cached_original_storage_at(key) {
+			return Ok(value);
+		}
+		match &self.original_storage_cache {
+			Some((ref original_storage_root, ref original_storage_cache)) =>
+				Self::get_and_cache_storage(
+					original_storage_root,
+					&mut original_storage_cache.borrow_mut(),
+					db,
+					key
+				),
+			None =>
+				Self::get_and_cache_storage(
+					&self.storage_root,
+					&mut self.storage_cache.borrow_mut(),
+					db,
+					key
+				),
+		}
+	}
+
+	fn get_and_cache_storage(storage_root: &H256, storage_cache: &mut LruCache<H256, H256>, db: &HashDB<KeccakHasher>, key: &H256) -> TrieResult<H256> {
+		let db = SecTrieDB::new(db, storage_root)?;
 		let panicky_decoder = |bytes:&[u8]| ::rlp::decode(&bytes).expect("decoding db value failed");
 		let item: U256 = db.get_with(key, panicky_decoder)?.unwrap_or_else(U256::zero);
 		let value: H256 = item.into();
-		self.storage_cache.borrow_mut().insert(key.clone(), value.clone());
+		storage_cache.insert(key.clone(), value.clone());
 		Ok(value)
 	}
 
@@ -218,10 +263,38 @@ impl Account {
 		if let Some(value) = self.storage_changes.get(key) {
 			return Some(value.clone())
 		}
-		if let Some(value) = self.storage_cache.borrow_mut().get_mut(key) {
-			return Some(value.clone())
+		self.cached_moved_original_storage_at(key)
+	}
+
+	/// Get cached original storage value after last state commitment. Returns `None` if the key is not in the cache.
+	pub fn cached_original_storage_at(&self, key: &H256) -> Option<H256> {
+		match &self.original_storage_cache {
+			Some((_, ref original_storage_cache)) => {
+				if let Some(value) = original_storage_cache.borrow_mut().get_mut(key) {
+					Some(value.clone())
+				} else {
+					None
+				}
+			},
+			None => {
+				self.cached_moved_original_storage_at(key)
+			},
+		}
+	}
+
+	/// Get cached original storage value since last contract creation on this address. Returns `None` if the key is not in the cache.
+	fn cached_moved_original_storage_at(&self, key: &H256) -> Option<H256> {
+		// If storage root is empty RLP, then early return zero value. Practically, this makes it so that if
+		// `original_storage_cache` is used, then `storage_cache` will always remain empty.
+		if self.storage_root == KECCAK_NULL_RLP {
+			return Some(H256::new());
+		}
+
+		if let Some(value) = self.storage_cache.borrow_mut().get_mut(key) {
+			Some(value.clone())
+		} else {
+			None
 		}
-		None
 	}
 
 	/// return the balance associated with this account.
@@ -278,12 +351,13 @@ impl Account {
 		!self.code_cache.is_empty() || (self.code_cache.is_empty() && self.code_hash == KECCAK_EMPTY)
 	}
 
-	/// Provide a database to get `code_hash`. Should not be called if it is a contract without code.
+	/// Provide a database to get `code_hash`. Should not be called if it is a contract without code. Returns the cached code, if successful.
+	#[must_use]
 	pub fn cache_code(&mut self, db: &HashDB<KeccakHasher>) -> Option<Arc<Bytes>> {
 		// TODO: fill out self.code_cache;
 		trace!("Account::cache_code: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());
 
-		if self.is_cached() { return Some(self.code_cache.clone()) }
+		if self.is_cached() { return Some(self.code_cache.clone()); }
 
 		match db.get(&self.code_hash) {
 			Some(x) => {
@@ -298,8 +372,7 @@ impl Account {
 		}
 	}
 
-	/// Provide code to cache. For correctness, should be the correct code for the
-	/// account.
+	/// Provide code to cache. For correctness, should be the correct code for the account.
 	pub fn cache_given_code(&mut self, code: Arc<Bytes>) {
 		trace!("Account::cache_given_code: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());
 
@@ -307,7 +380,9 @@ impl Account {
 		self.code_cache = code;
 	}
 
-	/// Provide a database to get `code_size`. Should not be called if it is a contract without code.
+	/// Provide a database to get `code_size`. Should not be called if it is a contract without code. Returns whether
+	/// the cache succeeds.
+	#[must_use]
 	pub fn cache_code_size(&mut self, db: &HashDB<KeccakHasher>) -> bool {
 		// TODO: fill out self.code_cache;
 		trace!("Account::cache_code_size: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());
@@ -324,7 +399,9 @@ impl Account {
 					},
 				}
 			} else {
-				false
+				// If the code hash is empty hash, then the code size is zero.
+				self.code_size = Some(0);
+				true
 			}
 	}
 
@@ -352,7 +429,27 @@ impl Account {
 	}
 
 	/// Return the storage root associated with this account or None if it has been altered via the overlay.
-	pub fn storage_root(&self) -> Option<&H256> { if self.storage_is_clean() {Some(&self.storage_root)} else {None} }
+	pub fn storage_root(&self) -> Option<H256> {
+		if self.storage_is_clean() {
+			Some(self.storage_root)
+		} else {
+			None
+		}
+	}
+
+	/// Return the original storage root of this account.
+	pub fn original_storage_root(&self) -> H256 {
+		if let Some((original_storage_root, _)) = self.original_storage_cache {
+			original_storage_root
+		} else {
+			self.storage_root
+		}
+	}
+
+	/// Storage root where the account changes are based upon.
+	pub fn base_storage_root(&self) -> H256 {
+		self.storage_root
+	}
 
 	/// Return the storage overlay.
 	pub fn storage_changes(&self) -> &HashMap<H256, H256> { &self.storage_changes }
@@ -387,6 +484,7 @@ impl Account {
 
 			self.storage_cache.borrow_mut().insert(k, v);
 		}
+		self.original_storage_cache = None;
 		Ok(())
 	}
 
@@ -424,6 +522,7 @@ impl Account {
 			nonce: self.nonce.clone(),
 			storage_root: self.storage_root.clone(),
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: self.original_storage_cache.as_ref().map(|(r, _)| (*r, Self::empty_storage_cache())),
 			storage_changes: HashMap::new(),
 			code_hash: self.code_hash.clone(),
 			code_size: self.code_size.clone(),
@@ -444,6 +543,7 @@ impl Account {
 	pub fn clone_all(&self) -> Account {
 		let mut account = self.clone_dirty();
 		account.storage_cache = self.storage_cache.clone();
+		account.original_storage_cache = self.original_storage_cache.clone();
 		account
 	}
 
@@ -453,16 +553,21 @@ impl Account {
 	pub fn overwrite_with(&mut self, other: Account) {
 		self.balance = other.balance;
 		self.nonce = other.nonce;
-		self.storage_root = other.storage_root;
 		self.code_hash = other.code_hash;
 		self.code_filth = other.code_filth;
 		self.code_cache = other.code_cache;
 		self.code_size = other.code_size;
 		self.address_hash = other.address_hash;
-		let mut cache = self.storage_cache.borrow_mut();
-		for (k, v) in other.storage_cache.into_inner() {
-			cache.insert(k, v);
+		if self.storage_root == other.storage_root {
+			let mut cache = self.storage_cache.borrow_mut();
+			for (k, v) in other.storage_cache.into_inner() {
+				cache.insert(k, v);
+			}
+		} else {
+			self.storage_cache = other.storage_cache;
 		}
+		self.original_storage_cache = other.original_storage_cache;
+		self.storage_root = other.storage_root;
 		self.storage_changes = other.storage_changes;
 	}
 }
@@ -521,7 +626,7 @@ mod tests {
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		let rlp = {
-			let mut a = Account::new_contract(69.into(), 0.into());
+			let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 			a.set_storage(0x00u64.into(), 0x1234u64.into());
 			a.commit_storage(&Default::default(), &mut db).unwrap();
 			a.init_code(vec![]);
@@ -530,7 +635,7 @@ mod tests {
 		};
 
 		let a = Account::from_rlp(&rlp).expect("decoding db value failed");
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 		assert_eq!(a.storage_at(&db.immutable(), &0x00u64.into()).unwrap(), 0x1234u64.into());
 		assert_eq!(a.storage_at(&db.immutable(), &0x01u64.into()).unwrap(), H256::default());
 	}
@@ -541,7 +646,7 @@ mod tests {
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 
 		let rlp = {
-			let mut a = Account::new_contract(69.into(), 0.into());
+			let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 			a.init_code(vec![0x55, 0x44, 0xffu8]);
 			a.commit_code(&mut db);
 			a.rlp()
@@ -556,18 +661,18 @@ mod tests {
 
 	#[test]
 	fn commit_storage() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.set_storage(0.into(), 0x1234.into());
 		assert_eq!(a.storage_root(), None);
 		a.commit_storage(&Default::default(), &mut db).unwrap();
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 	}
 
 	#[test]
 	fn commit_remove_commit_storage() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.set_storage(0.into(), 0x1234.into());
@@ -576,12 +681,12 @@ mod tests {
 		a.commit_storage(&Default::default(), &mut db).unwrap();
 		a.set_storage(1.into(), 0.into());
 		a.commit_storage(&Default::default(), &mut db).unwrap();
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 	}
 
 	#[test]
 	fn commit_code() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.init_code(vec![0x55, 0x44, 0xffu8]);
@@ -593,7 +698,7 @@ mod tests {
 
 	#[test]
 	fn reset_code() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.init_code(vec![0x55, 0x44, 0xffu8]);
@@ -624,7 +729,7 @@ mod tests {
 		assert_eq!(*a.balance(), 69u8.into());
 		assert_eq!(*a.nonce(), 0u8.into());
 		assert_eq!(a.code_hash(), KECCAK_EMPTY);
-		assert_eq!(a.storage_root().unwrap(), &KECCAK_NULL_RLP);
+		assert_eq!(a.storage_root().unwrap(), KECCAK_NULL_RLP);
 	}
 
 	#[test]

ethcore/src/state/mod.rs

@@ -181,6 +181,8 @@ impl AccountEntry {
 			Some(acc) => {
 				if let Some(ref mut ours) = self.account {
 					ours.overwrite_with(acc);
+				} else {
+					self.account = Some(acc);
 				}
 			},
 			None => self.account = None,
@@ -222,17 +224,16 @@ pub fn check_proof(
 	}
 }
 
-/// Prove a transaction on the given state.
+/// Prove a `virtual` transaction on the given state.
 /// Returns `None` when the transacion could not be proved,
 /// and a proof otherwise.
-pub fn prove_transaction<H: AsHashDB<KeccakHasher> + Send + Sync>(
+pub fn prove_transaction_virtual<H: AsHashDB<KeccakHasher> + Send + Sync>(
 	db: H,
 	root: H256,
 	transaction: &SignedTransaction,
 	machine: &Machine,
 	env_info: &EnvInfo,
 	factories: Factories,
-	virt: bool,
 ) -> Option<(Bytes, Vec<DBValue>)> {
 	use self::backend::Proving;
 
@@ -250,7 +251,7 @@ pub fn prove_transaction<H: AsHashDB<KeccakHasher> + Send + Sync>(
 	};
 
 	let options = TransactOptions::with_no_tracing().dont_check_nonce().save_output_from_contract();
-	match state.execute(env_info, machine, transaction, options, virt) {
+	match state.execute(env_info, machine, transaction, options, true) {
 		Err(ExecutionError::Internal(_)) => None,
 		Err(e) => {
 			trace!(target: "state", "Proved call failed: {}", e);
@@ -401,9 +402,12 @@ impl<B: Backend> State<B> {
 		self.factories.vm.clone()
 	}
 
-	/// Create a recoverable checkpoint of this state.
-	pub fn checkpoint(&mut self) {
-		self.checkpoints.get_mut().push(HashMap::new());
+	/// Create a recoverable checkpoint of this state. Return the checkpoint index.
+	pub fn checkpoint(&mut self) -> usize {
+		let checkpoints = self.checkpoints.get_mut();
+		let index = checkpoints.len();
+		checkpoints.push(HashMap::new());
+		index
 	}
 
 	/// Merge last checkpoint with previous.
@@ -494,8 +498,10 @@ impl<B: Backend> State<B> {
 
 	/// Create a new contract at address `contract`. If there is already an account at the address
 	/// it will have its code reset, ready for `init_code()`.
-	pub fn new_contract(&mut self, contract: &Address, balance: U256, nonce_offset: U256) {
-		self.insert_cache(contract, AccountEntry::new_dirty(Some(Account::new_contract(balance, self.account_start_nonce + nonce_offset))));
+	pub fn new_contract(&mut self, contract: &Address, balance: U256, nonce_offset: U256) -> TrieResult<()> {
+		let original_storage_root = self.original_storage_root(contract)?;
+		self.insert_cache(contract, AccountEntry::new_dirty(Some(Account::new_contract(balance, self.account_start_nonce + nonce_offset, original_storage_root))));
+		Ok(())
 	}
 
 	/// Remove an existing account.
@@ -536,11 +542,84 @@ impl<B: Backend> State<B> {
 	/// Get the storage root of account `a`.
 	pub fn storage_root(&self, a: &Address) -> TrieResult<Option<H256>> {
 		self.ensure_cached(a, RequireCache::None, true,
-			|a| a.as_ref().and_then(|account| account.storage_root().cloned()))
+			|a| a.as_ref().and_then(|account| account.storage_root()))
 	}
 
-	/// Mutate storage of account `address` so that it is `value` for `key`.
-	pub fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+	/// Get the original storage root since last commit of account `a`.
+	pub fn original_storage_root(&self, a: &Address) -> TrieResult<H256> {
+		Ok(self.ensure_cached(a, RequireCache::None, true,
+			|a| a.as_ref().map(|account| account.original_storage_root()))?
+			.unwrap_or(KECCAK_NULL_RLP))
+	}
+
+	/// Get the value of storage at a specific checkpoint.
+	pub fn checkpoint_storage_at(&self, checkpoint_index: usize, address: &Address, key: &H256) -> TrieResult<Option<H256>> {
+		enum ReturnKind {
+			/// Use original storage at value at this address.
+			OriginalAt,
+			/// Use the downward checkpoint value.
+			Downward,
+		}
+
+		let (checkpoints_len, kind) = {
+			let checkpoints = self.checkpoints.borrow();
+			let checkpoints_len = checkpoints.len();
+			let checkpoint = match checkpoints.get(checkpoint_index) {
+				Some(checkpoint) => checkpoint,
+				// The checkpoint was not found. Return None.
+				None => return Ok(None),
+			};
+
+			let kind = match checkpoint.get(address) {
+				// The account exists at this checkpoint.
+				Some(Some(AccountEntry { account: Some(ref account), .. })) => {
+					if let Some(value) = account.cached_storage_at(key) {
+						return Ok(Some(value));
+					} else {
+						// This account has checkpoint entry, but the key is not in the entry's cache. We can use
+						// original_storage_at if current account's original storage root is the same as checkpoint
+						// account's original storage root. Otherwise, the account must be a newly created contract.
+						if account.base_storage_root() == self.original_storage_root(address)? {
+							ReturnKind::OriginalAt
+						} else {
+							// If account base storage root is different from the original storage root since last
+							// commit, then it can only be created from a new contract, where the base storage root
+							// would always be empty. Note that this branch is actually never called, because
+							// `cached_storage_at` handled this case.
+							warn!("Trying to get an account's cached storage value, but base storage root does not equal to original storage root! Assuming the value is empty.");
+							return Ok(Some(H256::new()));
+						}
+					}
+				},
+				// The account didn't exist at that point. Return empty value.
+				Some(Some(AccountEntry { account: None, .. })) => return Ok(Some(H256::new())),
+				// The value was not cached at that checkpoint, meaning it was not modified at all.
+				Some(None) => ReturnKind::OriginalAt,
+				// This key does not have a checkpoint entry.
+				None => ReturnKind::Downward,
+			};
+
+			(checkpoints_len, kind)
+		};
+
+		match kind {
+			ReturnKind::Downward => {
+				if checkpoint_index >= checkpoints_len - 1 {
+					Ok(Some(self.storage_at(address, key)?))
+				} else {
+					self.checkpoint_storage_at(checkpoint_index + 1, address, key)
+				}
+			},
+			ReturnKind::OriginalAt => Ok(Some(self.original_storage_at(address, key)?)),
+		}
+	}
+
+	fn storage_at_inner<FCachedStorageAt, FStorageAt>(
+		&self, address: &Address, key: &H256, f_cached_at: FCachedStorageAt, f_at: FStorageAt,
+	) -> TrieResult<H256> where
+		FCachedStorageAt: Fn(&Account, &H256) -> Option<H256>,
+		FStorageAt: Fn(&Account, &HashDB<KeccakHasher>, &H256) -> TrieResult<H256>
+	{
 		// Storage key search and update works like this:
 		// 1. If there's an entry for the account in the local cache check for the key and return it if found.
 		// 2. If there's an entry for the account in the global cache check for the key or load it into that account.
@@ -553,7 +632,7 @@ impl<B: Backend> State<B> {
 			if let Some(maybe_acc) = local_cache.get(address) {
 				match maybe_acc.account {
 					Some(ref account) => {
-						if let Some(value) = account.cached_storage_at(key) {
+						if let Some(value) = f_cached_at(account, key) {
 							return Ok(value);
 						} else {
 							local_account = Some(maybe_acc);
@@ -567,7 +646,7 @@ impl<B: Backend> State<B> {
 				None => Ok(H256::new()),
 				Some(a) => {
 					let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
-					a.storage_at(account_db.as_hashdb(), key)
+					f_at(a, account_db.as_hashdb(), key)
 				}
 			});
 
@@ -579,7 +658,7 @@ impl<B: Backend> State<B> {
 			if let Some(ref mut acc) = local_account {
 				if let Some(ref account) = acc.account {
 					let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(address));
-					return account.storage_at(account_db.as_hashdb(), key)
+					return f_at(account, account_db.as_hashdb(), key)
 				} else {
 					return Ok(H256::new())
 				}
@@ -595,12 +674,32 @@ impl<B: Backend> State<B> {
 		let maybe_acc = db.get_with(address, from_rlp)?;
 		let r = maybe_acc.as_ref().map_or(Ok(H256::new()), |a| {
 			let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
-			a.storage_at(account_db.as_hashdb(), key)
+			f_at(a, account_db.as_hashdb(), key)
 		});
 		self.insert_cache(address, AccountEntry::new_clean(maybe_acc));
 		r
 	}
 
+	/// Mutate storage of account `address` so that it is `value` for `key`.
+	pub fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+		self.storage_at_inner(
+			address,
+			key,
+			|account, key| { account.cached_storage_at(key) },
+			|account, db, key| { account.storage_at(db, key) },
+		)
+	}
+
+	/// Get the value of storage after last state commitment.
+	pub fn original_storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+		self.storage_at_inner(
+			address,
+			key,
+			|account, key| { account.cached_original_storage_at(key) },
+			|account, db, key| { account.original_storage_at(db, key) },
+		)
+	}
+
 	/// Get accounts' code.
 	pub fn code(&self, a: &Address) -> TrieResult<Option<Arc<Bytes>>> {
 		self.ensure_cached(a, RequireCache::Code, true,
@@ -608,9 +707,9 @@ impl<B: Backend> State<B> {
 	}
 
 	/// Get an account's code hash.
-	pub fn code_hash(&self, a: &Address) -> TrieResult<H256> {
+	pub fn code_hash(&self, a: &Address) -> TrieResult<Option<H256>> {
 		self.ensure_cached(a, RequireCache::None, true,
-			|a| a.as_ref().map_or(KECCAK_EMPTY, |a| a.code_hash()))
+			|a| a.as_ref().map(|a| a.code_hash()))
 	}
 
 	/// Get accounts' code size.
@@ -671,13 +770,13 @@ impl<B: Backend> State<B> {
 	/// Initialise the code of account `a` so that it is `code`.
 	/// NOTE: Account should have been created with `new_contract`.
 	pub fn init_code(&mut self, a: &Address, code: Bytes) -> TrieResult<()> {
-		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce), |_|{})?.init_code(code);
+		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce, KECCAK_NULL_RLP), |_| {})?.init_code(code);
 		Ok(())
 	}
 
 	/// Reset the code of account `a` so that it is `code`.
 	pub fn reset_code(&mut self, a: &Address, code: Bytes) -> TrieResult<()> {
-		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce), |_|{})?.reset_code(code);
+		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce, KECCAK_NULL_RLP), |_| {})?.reset_code(code);
 		Ok(())
 	}
 
@@ -760,6 +859,7 @@ impl<B: Backend> State<B> {
 
 	/// Commits our cached account changes into the trie.
 	pub fn commit(&mut self) -> Result<(), Error> {
+		assert!(self.checkpoints.borrow().is_empty());
 		// first, commit the sub trees.
 		let mut accounts = self.cache.borrow_mut();
 		for (address, ref mut a) in accounts.iter_mut().filter(|&(_, ref a)| a.is_dirty()) {
@@ -805,6 +905,7 @@ impl<B: Backend> State<B> {
 
 	/// Clear state cache
 	pub fn clear(&mut self) {
+		assert!(self.checkpoints.borrow().is_empty());
 		self.cache.borrow_mut().clear();
 	}
 
@@ -910,31 +1011,38 @@ impl<B: Backend> State<B> {
 		Ok(pod_state::diff_pod(&pod_state_pre, &pod_state_post))
 	}
 
-	// load required account data from the databases.
-	fn update_account_cache(require: RequireCache, account: &mut Account, state_db: &B, db: &HashDB<KeccakHasher>) {
+	/// Load required account data from the databases. Returns whether the cache succeeds.
+	#[must_use]
+	fn update_account_cache(require: RequireCache, account: &mut Account, state_db: &B, db: &HashDB<KeccakHasher>) -> bool {
 		if let RequireCache::None = require {
-			return;
+			return true;
 		}
 
 		if account.is_cached() {
-			return;
+			return true;
 		}
 
 		// if there's already code in the global cache, always cache it localy
 		let hash = account.code_hash();
 		match state_db.get_cached_code(&hash) {
-			Some(code) => account.cache_given_code(code),
+			Some(code) => {
+				account.cache_given_code(code);
+				true
+			},
 			None => match require {
-				RequireCache::None => {},
+				RequireCache::None => true,
 				RequireCache::Code => {
 					if let Some(code) = account.cache_code(db) {
 						// propagate code loaded from the database to
 						// the global code cache.
-						state_db.cache_code(hash, code)
+						state_db.cache_code(hash, code);
+						true
+					} else {
+						false
 					}
 				},
 				RequireCache::CodeSize => {
-					account.cache_code_size(db);
+					account.cache_code_size(db)
 				}
 			}
 		}
@@ -949,8 +1057,11 @@ impl<B: Backend> State<B> {
 		if let Some(ref mut maybe_acc) = self.cache.borrow_mut().get_mut(a) {
 			if let Some(ref mut account) = maybe_acc.account {
 				let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-				Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
-				return Ok(f(Some(account)));
+				if Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+					return Ok(f(Some(account)));
+				} else {
+					return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+				}
 			}
 			return Ok(f(None));
 		}
@@ -958,12 +1069,14 @@ impl<B: Backend> State<B> {
 		let result = self.db.get_cached(a, |mut acc| {
 			if let Some(ref mut account) = acc {
 				let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-				Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
+				if !Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+					return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+				}
 			}
-			f(acc.map(|a| &*a))
+			Ok(f(acc.map(|a| &*a)))
 		});
 		match result {
-			Some(r) => Ok(r),
+			Some(r) => Ok(r?),
 			None => {
 				// first check if it is not in database for sure
 				if check_null && self.db.is_known_null(a) { return Ok(f(None)); }
@@ -974,7 +1087,9 @@ impl<B: Backend> State<B> {
 				let mut maybe_acc = db.get_with(a, from_rlp)?;
 				if let Some(ref mut account) = maybe_acc.as_mut() {
 					let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-					Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
+					if !Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+						return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+					}
 				}
 				let r = f(maybe_acc.as_ref());
 				self.insert_cache(a, AccountEntry::new_clean(maybe_acc));
@@ -985,7 +1100,7 @@ impl<B: Backend> State<B> {
 
 	/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
 	fn require<'a>(&'a self, a: &Address, require_code: bool) -> TrieResult<RefMut<'a, Account>> {
-		self.require_or_from(a, require_code, || Account::new_basic(0u8.into(), self.account_start_nonce), |_|{})
+		self.require_or_from(a, require_code, || Account::new_basic(0u8.into(), self.account_start_nonce), |_| {})
 	}
 
 	/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
@@ -1125,7 +1240,7 @@ mod tests {
 	use std::sync::Arc;
 	use std::str::FromStr;
 	use rustc_hex::FromHex;
-	use hash::keccak;
+	use hash::{keccak, KECCAK_NULL_RLP};
 	use super::*;
 	use ethkey::Secret;
 	use ethereum_types::{H256, U256, Address};
@@ -1977,7 +2092,7 @@ mod tests {
 		let a = Address::zero();
 		let (root, db) = {
 			let mut state = get_temp_state();
-			state.require_or_from(&a, false, ||Account::new_contract(42.into(), 0.into()), |_|{}).unwrap();
+			state.require_or_from(&a, false, || Account::new_contract(42.into(), 0.into(), KECCAK_NULL_RLP), |_|{}).unwrap();
 			state.init_code(&a, vec![1, 2, 3]).unwrap();
 			assert_eq!(state.code(&a).unwrap(), Some(Arc::new(vec![1u8, 2, 3])));
 			state.commit().unwrap();
@@ -2181,6 +2296,180 @@ mod tests {
 		assert_eq!(state.balance(&a).unwrap(), U256::from(0));
 	}
 
+	#[test]
+	fn checkpoint_revert_to_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+
+		let c0 = state.checkpoint();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(1)));
+
+		state.revert_to_checkpoint(); // Revert to c1.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+	}
+
+	#[test]
+	fn checkpoint_from_empty_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		let k2 = H256::from(U256::from(1));
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+		state.clear();
+
+		let c0 = state.checkpoint();
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		let c2 = state.checkpoint();
+		let c3 = state.checkpoint();
+		state.set_storage(&a, k2, H256::from(U256::from(3))).unwrap();
+		state.set_storage(&a, k, H256::from(U256::from(3))).unwrap();
+		let c4 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(4))).unwrap();
+		let c5 = state.checkpoint();
+
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+		assert_eq!(state.checkpoint_storage_at(c5, &a, &k).unwrap(), Some(H256::from(U256::from(4))));
+
+		state.discard_checkpoint(); // Commit/discard c5.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+
+		state.revert_to_checkpoint(); // Revert to c4.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.discard_checkpoint(); // Commit/discard c3.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.revert_to_checkpoint(); // Revert to c2.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+
+		state.discard_checkpoint(); // Commit/discard c1.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+	}
+
+	#[test]
+	fn checkpoint_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		let k2 = H256::from(U256::from(1));
+
+		state.set_storage(&a, k, H256::from(U256::from(0xffff))).unwrap();
+		state.commit().unwrap();
+		state.clear();
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0xffff)));
+		state.clear();
+
+		let cm1 = state.checkpoint();
+		let c0 = state.checkpoint();
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		let c2 = state.checkpoint();
+		let c3 = state.checkpoint();
+		state.set_storage(&a, k2, H256::from(U256::from(3))).unwrap();
+		state.set_storage(&a, k, H256::from(U256::from(3))).unwrap();
+		let c4 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(4))).unwrap();
+		let c5 = state.checkpoint();
+
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+		assert_eq!(state.checkpoint_storage_at(c5, &a, &k).unwrap(), Some(H256::from(U256::from(4))));
+
+		state.discard_checkpoint(); // Commit/discard c5.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+
+		state.revert_to_checkpoint(); // Revert to c4.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.discard_checkpoint(); // Commit/discard c3.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.revert_to_checkpoint(); // Revert to c2.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+
+		state.discard_checkpoint(); // Commit/discard c1.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+	}
+
+	#[test]
+	fn kill_account_with_checkpoints() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		state.checkpoint();
+		state.kill_account(&a);
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+		state.revert_to_checkpoint();
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(1)));
+	}
+
+	#[test]
+	fn create_contract_fail() {
+		let mut state = get_temp_state();
+		let orig_root = state.root().clone();
+		let a: Address = 1000.into();
+
+		state.checkpoint(); // c1
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		state.add_balance(&a, &U256::from(1), CleanupMode::ForceCreate).unwrap();
+		state.checkpoint(); // c2
+		state.add_balance(&a, &U256::from(1), CleanupMode::ForceCreate).unwrap();
+		state.discard_checkpoint(); // discard c2
+		state.revert_to_checkpoint(); // revert to c1
+		assert_eq!(state.exists(&a).unwrap(), false);
+
+		state.commit().unwrap();
+		assert_eq!(orig_root, state.root().clone());
+	}
+
 	#[test]
 	fn create_empty() {
 		let mut state = get_temp_state();
@@ -2218,7 +2507,7 @@ mod tests {
 			state.add_balance(&b, &100.into(), CleanupMode::ForceCreate).unwrap(); // create a dust account
 			state.add_balance(&c, &101.into(), CleanupMode::ForceCreate).unwrap(); // create a normal account
 			state.add_balance(&d, &99.into(), CleanupMode::ForceCreate).unwrap(); // create another dust account
-			state.new_contract(&e, 100.into(), 1.into()); // create a contract account
+			state.new_contract(&e, 100.into(), 1.into()).unwrap(); // create a contract account
 			state.init_code(&e, vec![0x00]).unwrap();
 			state.commit().unwrap();
 			state.drop()

ethcore/src/state/substate.rs

@@ -16,7 +16,7 @@
 
 //! Execution environment substate.
 use std::collections::HashSet;
-use ethereum_types::{U256, Address};
+use ethereum_types::Address;
 use log_entry::LogEntry;
 use evm::{Schedule, CleanDustMode};
 use super::CleanupMode;
@@ -34,8 +34,8 @@ pub struct Substate {
 	/// Any logs.
 	pub logs: Vec<LogEntry>,
 
-	/// Refund counter of SSTORE nonzero -> zero.
-	pub sstore_clears_count: U256,
+	/// Refund counter of SSTORE.
+	pub sstore_clears_refund: i128,
 
 	/// Created contracts.
 	pub contracts_created: Vec<Address>,
@@ -52,7 +52,7 @@ impl Substate {
 		self.suicides.extend(s.suicides);
 		self.touched.extend(s.touched);
 		self.logs.extend(s.logs);
-		self.sstore_clears_count = self.sstore_clears_count + s.sstore_clears_count;
+		self.sstore_clears_refund += s.sstore_clears_refund;
 		self.contracts_created.extend(s.contracts_created);
 	}
 
@@ -86,7 +86,7 @@ mod tests {
 			topics: vec![],
 			data: vec![]
 		});
-		sub_state.sstore_clears_count = 5.into();
+		sub_state.sstore_clears_refund = (15000 * 5).into();
 		sub_state.suicides.insert(10u64.into());
 
 		let mut sub_state_2 = Substate::new();
@@ -96,11 +96,11 @@ mod tests {
 			topics: vec![],
 			data: vec![]
 		});
-		sub_state_2.sstore_clears_count = 7.into();
+		sub_state_2.sstore_clears_refund = (15000 * 7).into();
 
 		sub_state.accrue(sub_state_2);
 		assert_eq!(sub_state.contracts_created.len(), 2);
-		assert_eq!(sub_state.sstore_clears_count, 12.into());
+		assert_eq!(sub_state.sstore_clears_refund, (15000 * 12).into());
 		assert_eq!(sub_state.suicides.len(), 1);
 	}
 }

ethcore/src/tests/client.rs

@@ -334,11 +334,11 @@ fn does_not_propagate_delayed_transactions() {
 
 	client.miner().import_own_transaction(&*client, tx0).unwrap();
 	client.miner().import_own_transaction(&*client, tx1).unwrap();
-	assert_eq!(0, client.ready_transactions(10).len());
+	assert_eq!(0, client.transactions_to_propagate().len());
 	assert_eq!(0, client.miner().ready_transactions(&*client, 10, PendingOrdering::Priority).len());
 	push_blocks_to_client(&client, 53, 2, 2);
 	client.flush_queue();
-	assert_eq!(2, client.ready_transactions(10).len());
+	assert_eq!(2, client.transactions_to_propagate().len());
 	assert_eq!(2, client.miner().ready_transactions(&*client, 10, PendingOrdering::Priority).len());
 }
 

ethcore/src/tests/evm.rs

@@ -39,7 +39,7 @@ fn test_blockhash_eip210(factory: Factory) {
 	let test_blockhash_contract = "73fffffffffffffffffffffffffffffffffffffffe33141561007a57600143036020526000356101006020510755600061010060205107141561005057600035610100610100602051050761010001555b6000620100006020510714156100755760003561010062010000602051050761020001555b61014a565b4360003512151561009057600060405260206040f35b610100600035430312156100b357610100600035075460605260206060f3610149565b62010000600035430312156100d157600061010060003507146100d4565b60005b156100f6576101006101006000350507610100015460805260206080f3610148565b630100000060003543031215610116576000620100006000350714610119565b60005b1561013c57610100620100006000350507610200015460a052602060a0f3610147565b600060c052602060c0f35b5b5b5b5b";
 	let blockhash_contract_code = Arc::new(test_blockhash_contract.from_hex().unwrap());
 	let blockhash_contract_code_hash = keccak(blockhash_contract_code.as_ref());
-	let machine = ::ethereum::new_constantinople_test_machine();
+	let machine = ::ethereum::new_eip210_test_machine();
 	let mut env_info = EnvInfo::default();
 
 	// populate state with 256 last hashes

ethcore/sync/Cargo.toml

@@ -8,6 +8,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 [lib]
 
 [dependencies]
+common-types = { path = "../types" }
 parity-bytes = { git = "https://github.com/paritytech/parity-common" }
 ethcore-network = { path = "../../util/network" }
 ethcore-network-devp2p = { path = "../../util/network-devp2p" }

ethcore/sync/src/api.rs

@@ -24,6 +24,8 @@ use devp2p::NetworkService;
 use network::{NetworkProtocolHandler, NetworkContext, PeerId, ProtocolId,
 	NetworkConfiguration as BasicNetworkConfiguration, NonReservedPeerMode, Error, ErrorKind,
 	ConnectionFilter};
+
+use types::pruning_info::PruningInfo;
 use ethereum_types::{H256, H512, U256};
 use io::{TimerToken};
 use ethcore::ethstore::ethkey::Secret;
@@ -39,7 +41,10 @@ use chain::{ETH_PROTOCOL_VERSION_63, ETH_PROTOCOL_VERSION_62,
 	PAR_PROTOCOL_VERSION_1, PAR_PROTOCOL_VERSION_2, PAR_PROTOCOL_VERSION_3};
 use light::client::AsLightClient;
 use light::Provider;
-use light::net::{self as light_net, LightProtocol, Params as LightParams, Capabilities, Handler as LightHandler, EventContext};
+use light::net::{
+	self as light_net, LightProtocol, Params as LightParams,
+	Capabilities, Handler as LightHandler, EventContext, SampleStore,
+};
 use network::IpFilter;
 use private_tx::PrivateTxHandler;
 use transaction::UnverifiedTransaction;
@@ -256,11 +261,35 @@ pub struct EthSync {
 	light_subprotocol_name: [u8; 3],
 }
 
+fn light_params(
+	network_id: u64,
+	max_peers: u32,
+	pruning_info: PruningInfo,
+	sample_store: Option<Box<SampleStore>>,
+) -> LightParams {
+	const MAX_LIGHTSERV_LOAD: f64 = 0.5;
+
+	let mut light_params = LightParams {
+		network_id: network_id,
+		config: Default::default(),
+		capabilities: Capabilities {
+			serve_headers: true,
+			serve_chain_since: Some(pruning_info.earliest_chain),
+			serve_state_since: Some(pruning_info.earliest_state),
+			tx_relay: true,
+		},
+		sample_store: sample_store,
+	};
+
+	let max_peers = ::std::cmp::max(max_peers, 1);
+	light_params.config.load_share = MAX_LIGHTSERV_LOAD / max_peers as f64;
+
+	light_params
+}
+
 impl EthSync {
 	/// Creates and register protocol with the network service
 	pub fn new(params: Params, connection_filter: Option<Arc<ConnectionFilter>>) -> Result<Arc<EthSync>, Error> {
-		const MAX_LIGHTSERV_LOAD: f64 = 0.5;
-
 		let pruning_info = params.chain.pruning_info();
 		let light_proto = match params.config.serve_light {
 			false => None,
@@ -271,20 +300,12 @@ impl EthSync {
 					.map(|mut p| { p.push("request_timings"); light_net::FileStore(p) })
 					.map(|store| Box::new(store) as Box<_>);
 
-				let mut light_params = LightParams {
-					network_id: params.config.network_id,
-					config: Default::default(),
-					capabilities: Capabilities {
-						serve_headers: true,
-						serve_chain_since: Some(pruning_info.earliest_chain),
-						serve_state_since: Some(pruning_info.earliest_state),
-						tx_relay: true,
-					},
-					sample_store: sample_store,
-				};
-
-				let max_peers = ::std::cmp::min(params.network_config.max_peers, 1);
-				light_params.config.load_share = MAX_LIGHTSERV_LOAD / max_peers as f64;
+				let light_params = light_params(
+					params.config.network_id,
+					params.network_config.max_peers,
+					pruning_info,
+					sample_store,
+				);
 
 				let mut light_proto = LightProtocol::new(params.provider, light_params);
 				light_proto.add_handler(Arc::new(TxRelay(params.chain.clone())));
@@ -916,3 +937,19 @@ impl LightSyncProvider for LightSync {
 		Default::default() // TODO
 	}
 }
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn light_params_load_share_depends_on_max_peers() {
+		let pruning_info = PruningInfo {
+			earliest_chain: 0,
+			earliest_state: 0,
+		};
+		let params1 = light_params(0, 10, pruning_info.clone(), None);
+		let params2 = light_params(0, 20, pruning_info, None);
+		assert!(params1.config.load_share > params2.config.load_share)
+	}
+}

ethcore/sync/src/block_sync.rs

@@ -23,11 +23,11 @@ use std::cmp;
 use heapsize::HeapSizeOf;
 use ethereum_types::H256;
 use rlp::Rlp;
+use ethcore::block::Block;
 use ethcore::views::BlockView;
 use ethcore::header::{BlockNumber, Header as BlockHeader};
 use ethcore::client::{BlockStatus, BlockId, BlockImportError, BlockImportErrorKind};
-use ethcore::block::Block;
-use ethcore::error::{ImportErrorKind, BlockError};
+use ethcore::error::{ImportErrorKind, QueueErrorKind, BlockError};
 use sync_io::SyncIo;
 use blocks::BlockCollection;
 
@@ -477,18 +477,19 @@ impl BlockDownloader {
 		for block_and_receipts in blocks {
 			let block = block_and_receipts.block;
 			let receipts = block_and_receipts.receipts;
+
+			// Perform basic block verification
+			if !Block::is_good(&block) {
+				debug!(target: "sync", "Bad block rlp: {:?}", block);
+				bad = true;
+				break;
+			}
+
 			let (h, number, parent) = {
 				let header = view!(BlockView, &block).header_view();
 				(header.hash(), header.number(), header.parent_hash())
 			};
 
-			// Perform basic block verification
-			if !Block::is_good(&block) {
-				debug!(target: "sync", "Bad block rlp {:?} : {:?}", h, block);
-				bad = true;
-				break;
-			}
-
 			if self.target_hash.as_ref().map_or(false, |t| t == &h) {
 				self.state = State::Complete;
 				trace!(target: "sync", "Sync target reached");
@@ -526,6 +527,10 @@ impl BlockDownloader {
 					debug!(target: "sync", "Block temporarily invalid, restarting sync");
 					break;
 				},
+				Err(BlockImportError(BlockImportErrorKind::Queue(QueueErrorKind::Full(limit)), _)) => {
+					debug!(target: "sync", "Block import queue full ({}), restarting sync", limit);
+					break;
+				},
 				Err(e) => {
 					debug!(target: "sync", "Bad block {:?} : {:?}", h, e);
 					bad = true;

ethcore/sync/src/chain/mod.rs

@@ -149,12 +149,6 @@ const MAX_NEW_HASHES: usize = 64;
 const MAX_NEW_BLOCK_AGE: BlockNumber = 20;
 // maximal packet size with transactions (cannot be greater than 16MB - protocol limitation).
 const MAX_TRANSACTION_PACKET_SIZE: usize = 8 * 1024 * 1024;
-// Maximal number of transactions queried from miner to propagate.
-// This set is used to diff with transactions known by the peer and
-// we will send a difference of length up to `MAX_TRANSACTIONS_TO_PROPAGATE`.
-const MAX_TRANSACTIONS_TO_QUERY: usize = 4096;
-// Maximal number of transactions in sent in single packet.
-const MAX_TRANSACTIONS_TO_PROPAGATE: usize = 64;
 // Min number of blocks to be behind for a snapshot sync
 const SNAPSHOT_RESTORE_THRESHOLD: BlockNumber = 30000;
 const SNAPSHOT_MIN_PEERS: usize = 3;
@@ -506,8 +500,9 @@ impl ChainSync {
 		self.peers.clear();
 	}
 
-	/// Reset sync. Clear all downloaded data but keep the queue
-	fn reset(&mut self, io: &mut SyncIo) {
+	/// Reset sync. Clear all downloaded data but keep the queue.
+	/// Set sync state to the given state or to the initial state if `None` is provided.
+	fn reset(&mut self, io: &mut SyncIo, state: Option<SyncState>) {
 		self.new_blocks.reset();
 		let chain_info = io.chain().chain_info();
 		for (_, ref mut p) in &mut self.peers {
@@ -519,7 +514,7 @@ impl ChainSync {
 				}
 			}
 		}
-		self.state = ChainSync::get_init_state(self.warp_sync, io.chain());
+		self.state = state.unwrap_or_else(|| ChainSync::get_init_state(self.warp_sync, io.chain()));
 		// Reactivate peers only if some progress has been made
 		// since the last sync round of if starting fresh.
 		self.active_peers = self.peers.keys().cloned().collect();
@@ -533,7 +528,7 @@ impl ChainSync {
 			io.snapshot_service().abort_restore();
 		}
 		self.snapshot.clear();
-		self.reset(io);
+		self.reset(io, None);
 		self.continue_sync(io);
 	}
 
@@ -698,7 +693,7 @@ impl ChainSync {
 	/// Called after all blocks have been downloaded
 	fn complete_sync(&mut self, io: &mut SyncIo) {
 		trace!(target: "sync", "Sync complete");
-		self.reset(io);
+		self.reset(io, Some(SyncState::Idle));
 	}
 
 	/// Enter waiting state
@@ -761,14 +756,24 @@ impl ChainSync {
 						}
 					}
 
-					// Only ask for old blocks if the peer has a higher difficulty
-					if force || higher_difficulty {
+					// Only ask for old blocks if the peer has a higher difficulty than the last imported old block
+					let last_imported_old_block_difficulty = self.old_blocks.as_mut().and_then(|d| {
+						io.chain().block_total_difficulty(BlockId::Number(d.last_imported_block_number()))
+					});
+
+					if force || last_imported_old_block_difficulty.map_or(true, |ld| peer_difficulty.map_or(true, |pd| pd > ld)) {
 						if let Some(request) = self.old_blocks.as_mut().and_then(|d| d.request_blocks(io, num_active_peers)) {
 							SyncRequester::request_blocks(self, io, peer_id, request, BlockSet::OldBlocks);
 							return;
 						}
 					} else {
-						trace!(target: "sync", "peer {} is not suitable for asking old blocks", peer_id);
+						trace!(
+							target: "sync",
+							"peer {:?} is not suitable for requesting old blocks, last_imported_old_block_difficulty={:?}, peer_difficulty={:?}",
+							peer_id,
+							last_imported_old_block_difficulty,
+							peer_difficulty
+						);
 						self.deactivate_peer(io, peer_id);
 					}
 				},

ethcore/sync/src/chain/propagator.rs

@@ -29,11 +29,9 @@ use transaction::SignedTransaction;
 use super::{
 	random,
 	ChainSync,
+	MAX_TRANSACTION_PACKET_SIZE,
 	MAX_PEER_LAG_PROPAGATION,
 	MAX_PEERS_PROPAGATION,
-	MAX_TRANSACTION_PACKET_SIZE,
-	MAX_TRANSACTIONS_TO_PROPAGATE,
-	MAX_TRANSACTIONS_TO_QUERY,
 	MIN_PEERS_PROPAGATION,
 	CONSENSUS_DATA_PACKET,
 	NEW_BLOCK_HASHES_PACKET,
@@ -121,7 +119,7 @@ impl SyncPropagator {
 			return 0;
 		}
 
-		let transactions = io.chain().ready_transactions(MAX_TRANSACTIONS_TO_QUERY);
+		let transactions = io.chain().transactions_to_propagate();
 		if transactions.is_empty() {
 			return 0;
 		}
@@ -184,7 +182,6 @@ impl SyncPropagator {
 
 					// Get hashes of all transactions to send to this peer
 					let to_send = all_transactions_hashes.difference(&peer_info.last_sent_transactions)
-						.take(MAX_TRANSACTIONS_TO_PROPAGATE)
 						.cloned()
 						.collect::<HashSet<_>>();
 					if to_send.is_empty() {
@@ -205,7 +202,7 @@ impl SyncPropagator {
 								let appended = packet.append_raw_checked(&transaction.drain(), 1, MAX_TRANSACTION_PACKET_SIZE);
 								if !appended {
 									// Maximal packet size reached just proceed with sending
-									debug!("Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
+									debug!(target: "sync", "Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
 									to_send = to_send.into_iter().take(pushed).collect();
 									break;
 								}

ethcore/sync/src/lib.rs

@@ -21,6 +21,7 @@
 //! https://github.com/ethereum/wiki/wiki/Ethereum-Wire-Protocol
 //!
 
+extern crate common_types as types;
 extern crate ethcore_network as network;
 extern crate ethcore_network_devp2p as devp2p;
 extern crate parity_bytes as bytes;

ethcore/transaction/src/transaction.rs

@@ -90,8 +90,8 @@ pub mod signature {
 		match v {
 			v if v == 27 => 0,
 			v if v == 28 => 1,
-			v if v > 36 => ((v - 1) % 2) as u8,
-			 _ => 4
+			v if v >= 35 => ((v - 1) % 2) as u8,
+			_ => 4
 		}
 	}
 }
@@ -358,7 +358,7 @@ impl UnverifiedTransaction {
 	pub fn chain_id(&self) -> Option<u64> {
 		match self.v {
 			v if self.is_unsigned() => Some(v),
-			v if v > 36 => Some((v - 35) / 2),
+			v if v >= 35 => Some((v - 35) / 2),
 			_ => None,
 		}
 	}
@@ -387,23 +387,6 @@ impl UnverifiedTransaction {
 		Ok(recover(&self.signature(), &self.unsigned.hash(self.chain_id()))?)
 	}
 
-	/// Do basic validation, checking for valid signature and minimum gas,
-	// TODO: consider use in block validation.
-	#[cfg(feature = "json-tests")]
-	pub fn validate(self, schedule: &Schedule, require_low: bool, allow_chain_id_of_one: bool, allow_empty_signature: bool)
-		-> Result<UnverifiedTransaction, error::Error>
-	{
-		let chain_id = if allow_chain_id_of_one { Some(1) } else { None };
-		self.verify_basic(require_low, chain_id, allow_empty_signature)?;
-		if !allow_empty_signature || !self.is_unsigned() {
-			self.recover_public()?;
-		}
-		if self.gas < U256::from(self.gas_required(&schedule)) {
-			return Err(error::Error::InvalidGasLimit(::unexpected::OutOfBounds{min: Some(U256::from(self.gas_required(&schedule))), max: None, found: self.gas}).into())
-		}
-		Ok(self)
-	}
-
 	/// Verify basic signature params. Does not attempt sender recovery.
 	pub fn verify_basic(&self, check_low_s: bool, chain_id: Option<u64>, allow_empty_signature: bool) -> Result<(), error::Error> {
 		if check_low_s && !(allow_empty_signature && self.is_unsigned()) {
@@ -594,6 +577,27 @@ mod tests {
 		assert_eq!(t.chain_id(), None);
 	}
 
+	#[test]
+	fn signing_eip155_zero_chainid() {
+		use ethkey::{Random, Generator};
+
+		let key = Random.generate().unwrap();
+		let t = Transaction {
+			action: Action::Create,
+			nonce: U256::from(42),
+			gas_price: U256::from(3000),
+			gas: U256::from(50_000),
+			value: U256::from(1),
+			data: b"Hello!".to_vec()
+		};
+
+		let hash = t.hash(Some(0));
+		let sig = ::ethkey::sign(&key.secret(), &hash).unwrap();
+		let u = t.with_signature(sig, Some(0));
+
+		assert!(SignedTransaction::new(u).is_ok());
+	}
+
 	#[test]
 	fn signing() {
 		use ethkey::{Random, Generator};

ethcore/vm/src/ext.rs

@@ -51,18 +51,21 @@ pub enum MessageCallResult {
 }
 
 /// Specifies how an address is calculated for a new contract.
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
 pub enum CreateContractAddress {
-	/// Address is calculated from nonce and sender. Pre EIP-86 (Metropolis)
+	/// Address is calculated from sender and nonce. pWASM `create` scheme.
 	FromSenderAndNonce,
-	/// Address is calculated from code hash. Default since EIP-86
-	FromCodeHash,
-	/// Address is calculated from code hash and sender. Used by CREATE_P2SH instruction.
+	/// Address is calculated from sender, salt and code hash. pWASM `create2` scheme and EIP-1014 CREATE2 scheme.
+	FromSenderSaltAndCodeHash(H256),
+	/// Address is calculated from code hash and sender. Used by pwasm create ext.
 	FromSenderAndCodeHash,
 }
 
 /// Externalities interface for EVMs
 pub trait Ext {
+	/// Returns the storage value for a given key if reversion happens on the current transaction.
+	fn initial_storage_at(&self, key: &H256) -> Result<H256>;
+
 	/// Returns a value for given key.
 	fn storage_at(&self, key: &H256) -> Result<H256>;
 
@@ -106,10 +109,13 @@ pub trait Ext {
 	) -> MessageCallResult;
 
 	/// Returns code at given address
-	fn extcode(&self, address: &Address) -> Result<Arc<Bytes>>;
+	fn extcode(&self, address: &Address) -> Result<Option<Arc<Bytes>>>;
+
+	/// Returns code hash at given address
+	fn extcodehash(&self, address: &Address) -> Result<Option<H256>>;
 
 	/// Returns code size at given address
-	fn extcodesize(&self, address: &Address) -> Result<usize>;
+	fn extcodesize(&self, address: &Address) -> Result<Option<usize>>;
 
 	/// Creates log entry with given topics and data
 	fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> Result<()>;
@@ -134,8 +140,11 @@ pub trait Ext {
 	/// then A depth is 0, B is 1, C is 2 and so on.
 	fn depth(&self) -> usize;
 
-	/// Increments sstore refunds count by 1.
-	fn inc_sstore_clears(&mut self);
+	/// Increments sstore refunds counter.
+	fn add_sstore_refund(&mut self, value: usize);
+
+	/// Decrements sstore refunds counter.
+	fn sub_sstore_refund(&mut self, value: usize);
 
 	/// Decide if any more operations should be traced. Passthrough for the VM trace.
 	fn trace_next_instruction(&mut self, _pc: usize, _instruction: u8, _current_gas: U256) -> bool { false }

ethcore/vm/src/schedule.rs

@@ -22,10 +22,12 @@ pub struct Schedule {
 	pub exceptional_failed_code_deposit: bool,
 	/// Does it have a delegate cal
 	pub have_delegate_call: bool,
-	/// Does it have a CREATE_P2SH instruction
+	/// Does it have a CREATE2 instruction
 	pub have_create2: bool,
 	/// Does it have a REVERT instruction
 	pub have_revert: bool,
+	/// Does it have a EXTCODEHASH instruction
+	pub have_extcodehash: bool,
 	/// VM stack limit
 	pub stack_limit: usize,
 	/// Max number of nested calls/creates
@@ -92,6 +94,8 @@ pub struct Schedule {
 	pub extcodecopy_base_gas: usize,
 	/// Price of BALANCE
 	pub balance_gas: usize,
+	/// Price of EXTCODEHASH
+	pub extcodehash_gas: usize,
 	/// Price of SUICIDE
 	pub suicide_gas: usize,
 	/// Amount of additional gas to pay when SUICIDE credits a non-existant account
@@ -113,8 +117,10 @@ pub struct Schedule {
 	pub have_bitwise_shifting: bool,
 	/// Kill basic accounts below this balance if touched.
 	pub kill_dust: CleanDustMode,
-	/// Enable EIP-86 rules
-	pub eip86: bool,
+	/// Enable EIP-1283 rules
+	pub eip1283: bool,
+	/// VM execution does not increase null signed address nonce if this field is true.
+	pub keep_unsigned_nonce: bool,
 	/// Wasm extra schedule settings, if wasm activated
 	pub wasm: Option<WasmCosts>,
 }
@@ -145,6 +151,10 @@ pub struct WasmCosts {
 	pub opcodes_mul: u32,
 	/// Cost of wasm opcode is calculated as TABLE_ENTRY_COST * `opcodes_mul` / `opcodes_div`
 	pub opcodes_div: u32,
+	/// Whether create2 extern function is activated.
+	pub have_create2: bool,
+	/// Whether gasleft extern function is activated.
+	pub have_gasleft: bool,
 }
 
 impl Default for WasmCosts {
@@ -162,6 +172,8 @@ impl Default for WasmCosts {
 			max_stack_height: 64*1024,
 			opcodes_mul: 3,
 			opcodes_div: 8,
+			have_create2: false,
+			have_gasleft: false,
 		}
 	}
 }
@@ -197,6 +209,7 @@ impl Schedule {
 			have_revert: false,
 			have_return_data: false,
 			have_bitwise_shifting: false,
+			have_extcodehash: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -229,6 +242,7 @@ impl Schedule {
 			copy_gas: 3,
 			extcodesize_gas: 700,
 			extcodecopy_base_gas: 700,
+			extcodehash_gas: 400,
 			balance_gas: 400,
 			suicide_gas: 5000,
 			suicide_to_new_account_cost: 25000,
@@ -238,7 +252,8 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
-			eip86: false,
+			eip1283: false,
+			keep_unsigned_nonce: false,
 			wasm: None,
 		}
 	}
@@ -268,6 +283,7 @@ impl Schedule {
 			have_revert: false,
 			have_return_data: false,
 			have_bitwise_shifting: false,
+			have_extcodehash: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -300,6 +316,7 @@ impl Schedule {
 			copy_gas: 3,
 			extcodesize_gas: 20,
 			extcodecopy_base_gas: 20,
+			extcodehash_gas: 400,
 			balance_gas: 20,
 			suicide_gas: 0,
 			suicide_to_new_account_cost: 0,
@@ -309,7 +326,8 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
-			eip86: false,
+			eip1283: false,
+			keep_unsigned_nonce: false,
 			wasm: None,
 		}
 	}