js-precompiled 20171011-183908

* v1.7.4

* Fixed potential exp len overflow (#6686)

* Fix warp sync blockers detection

.gitlab-ci.yml

@@ -77,8 +77,10 @@ linux-snap:
     - echo "Version:"$VER
     - snapcraft
     - ls
-    - cp "parity_"$CI_BUILD"_REF_NAME_amd64.snap" "parity_"$VER"_amd64.snap"
+    #- cp "parity_"$CI_BUILD"_amd64.snap" "parity_"$VER"_amd64.snap"
     - md5sum "parity_"$VER"_amd64.snap" > "parity_"$VER"_amd64.snap.md5"
+    - file "parity_"$VER"_amd64.snap.md5"
+    - cat "parity_"$VER"_amd64.snap.md5"
     - aws configure set aws_access_key_id $s3_key
     - aws configure set aws_secret_access_key $s3_secret
     - if [[ $CI_BUILD_REF_NAME =~ ^(master|beta|stable|nightly)$ ]]; then export S3_BUCKET=builds-parity-published; else export S3_BUCKET=builds-parity; fi
@@ -561,11 +563,9 @@ docker-build:
     - docker info
   script:
     - if [ "$CI_BUILD_REF_NAME" == "beta-release" ]; then DOCKER_TAG="latest"; else DOCKER_TAG=$CI_BUILD_REF_NAME; fi
-    - docker login -u $Docker_Hub_User -p $Docker_Hub_Pass
-    - sh scripts/docker-build.sh $DOCKER_TAG ethcore
-    - docker logout
+    - echo "Tag:" $DOCKER_TAG
     - docker login -u $Docker_Hub_User_Parity -p $Docker_Hub_Pass_Parity
-    - sh scripts/docker-build.sh $DOCKER_TAG parity
+    - sh scripts/docker-build.sh $DOCKER_TAG
     - docker logout
   tags:
     - docker

CHANGELOG.md

@@ -1,3 +1,489 @@
+## Parity [v1.7.0](https://github.com/paritytech/parity/releases/tag/v1.7.0) (2017-07-28)
+
+Parity 1.7.0 is a major release introducing several important features:
+
+- **Experimental [Light client](https://github.com/paritytech/parity/wiki/The-Parity-Light-Protocol-(PIP)) support**. Start Parity with `--light` to enable light mode. Please, note: The wallet UI integration for the light client is not included, yet.
+- **Experimental web wallet**. A hosted version of Parity that keeps the keys and signs transactions using your browser storage. Try it at https://wallet.parity.io or run your own with `--public-node`.
+- **WASM contract support**. Private networks can run contracts compiled into WASM bytecode. _More information and documentation to follow_.
+- **DApps and RPC server merge**. DApp and RPC are now available through a single API endpoint. DApp server related settings are deprecated.
+- **Export accounts from the wallet**. Backing up your keys can now simply be managed through the wallet interface.
+- **PoA/Kovan validator set contract**. The PoA network validator-set management via smart contract is now supported by warp and, in the near future, light sync.
+- **PubSub API**. https://github.com/paritytech/parity/wiki/JSONRPC-Parity-Pub-Sub-module
+- **Signer apps for IOS and Android**.
+
+Full list of included changes:
+
+- Backports [#6163](https://github.com/paritytech/parity/pull/6163)
+  - Light client improvements ([#6156](https://github.com/paritytech/parity/pull/6156))
+    - No seal checking
+    - Import command and --no-seal-check for light client
+    - Fix eth_call
+    - Tweak registry dapps lookup
+    - Ignore failed requests to non-server peers
+  - Fix connecting to wildcard addresses. ([#6167](https://github.com/paritytech/parity/pull/6167))
+  - Don't display an overlay in case the time sync check fails. ([#6164](https://github.com/paritytech/parity/pull/6164))
+    - Small improvements to time estimation.
+    - Temporarily disable NTP time check by default.
+- Light client fixes ([#6148](https://github.com/paritytech/parity/pull/6148)) [#6151](https://github.com/paritytech/parity/pull/6151)
+  - Light client fixes
+  - Fix memory-lru-cache
+  - Clear pending reqs on disconnect
+- Filter tokens logs from current block, not genesis ([#6128](https://github.com/paritytech/parity/pull/6128)) [#6141](https://github.com/paritytech/parity/pull/6141)
+- Fix QR scanner returning null on confirm [#6122](https://github.com/paritytech/parity/pull/6122)
+- Check QR before lowercase ([#6119](https://github.com/paritytech/parity/pull/6119)) [#6120](https://github.com/paritytech/parity/pull/6120)
+- Remove chunk to restore from pending set only upon successful import [#6117](https://github.com/paritytech/parity/pull/6117)
+- Fixed node address detection on incoming connection [#6094](https://github.com/paritytech/parity/pull/6094)
+- Place RETURNDATA behind block number gate [#6095](https://github.com/paritytech/parity/pull/6095)
+- Update wallet library binaries [#6108](https://github.com/paritytech/parity/pull/6108)
+- Backported wallet fix [#6105](https://github.com/paritytech/parity/pull/6105)
+  - Fix initialisation bug. ([#6102](https://github.com/paritytech/parity/pull/6102))
+  - Update wallet library modifiers ([#6103](https://github.com/paritytech/parity/pull/6103))
+- Place RETURNDATA behind block number gate [#6095](https://github.com/paritytech/parity/pull/6095)
+- Fixed node address detection on incoming connection [#6094](https://github.com/paritytech/parity/pull/6094)
+- Bump snap version and tweak importing detection logic ([#6079](https://github.com/paritytech/parity/pull/6079)) [#6081](https://github.com/paritytech/parity/pull/6081)
+  - bump last tick just before printing info and restore sync detection
+  - bump kovan snapshot version
+  - Fixed sync tests
+  - Fixed rpc tests
+- Acquire client report under lock in informant [#6071](https://github.com/paritytech/parity/pull/6071)
+- Show busy indicator on Address forget [#6069](https://github.com/paritytech/parity/pull/6069)
+- Add CSP for worker-src ([#6059](https://github.com/paritytech/parity/pull/6059)) [#6064](https://github.com/paritytech/parity/pull/6064)
+  - Specify worker-src seperately, add blob
+  - Upgrade react-qr-scan to latest version
+- Set release channel to beta
+- Limit transaction queue memory & limit future queue [#6038](https://github.com/paritytech/parity/pull/6038)
+- Fix CI build issue [#6050](https://github.com/paritytech/parity/pull/6050)
+- New contract PoA sync fixes [#5991](https://github.com/paritytech/parity/pull/5991)
+- Fixed link to Multisig Contract Wallet on master [#5984](https://github.com/paritytech/parity/pull/5984)
+- Ethcore crate split part 1 [#6041](https://github.com/paritytech/parity/pull/6041)
+- Fix status icon [#6039](https://github.com/paritytech/parity/pull/6039)
+- Errors & warnings for inappropriate RPCs [#6029](https://github.com/paritytech/parity/pull/6029)
+- Add missing CSP for web3.site [#5992](https://github.com/paritytech/parity/pull/5992)
+- Remove cargo install --git from README.md [#6037](https://github.com/paritytech/parity/pull/6037)
+- Node Health warnings [#5951](https://github.com/paritytech/parity/pull/5951)
+- RPC cpu pool [#6023](https://github.com/paritytech/parity/pull/6023)
+- Use crates.io dependencies for parity-wasm [#6036](https://github.com/paritytech/parity/pull/6036)
+- Add test for loading the chain specs [#6028](https://github.com/paritytech/parity/pull/6028)
+- Whitelist APIs for generic Pub-Sub [#5840](https://github.com/paritytech/parity/pull/5840)
+- WASM contracts MVP [#5679](https://github.com/paritytech/parity/pull/5679)
+- Fix valid QR scan not advancing [#6033](https://github.com/paritytech/parity/pull/6033)
+- --reseal-on-uncle [#5940](https://github.com/paritytech/parity/pull/5940)
+- Support comments in reserved peers file ([#6004](https://github.com/paritytech/parity/pull/6004)) [#6012](https://github.com/paritytech/parity/pull/6012)
+- Add new md tnc [#5937](https://github.com/paritytech/parity/pull/5937)
+- Fix output of parity-evm in case of bad instruction [#5955](https://github.com/paritytech/parity/pull/5955)
+- Don't send notifications to unsubscribed clients of PubSub [#5960](https://github.com/paritytech/parity/pull/5960)
+- Proper light client informant and more verification of imported headers [#5897](https://github.com/paritytech/parity/pull/5897)
+- New Kovan bootnodes [#6017](https://github.com/paritytech/parity/pull/6017)
+- Use standard paths for Ethash cache [#5881](https://github.com/paritytech/parity/pull/5881)
+- Defer code hash calculation. [#5959](https://github.com/paritytech/parity/pull/5959)
+- Fix first run wizard. [#6000](https://github.com/paritytech/parity/pull/6000)
+- migration to serde 1.0 [#5996](https://github.com/paritytech/parity/pull/5996)
+- SecretStore: generating signatures [#5764](https://github.com/paritytech/parity/pull/5764)
+- bigint upgraded to version 3.0 [#5986](https://github.com/paritytech/parity/pull/5986)
+- config: don't allow dev chain with force sealing option [#5965](https://github.com/paritytech/parity/pull/5965)
+- Update lockfile for miniz-sys and gcc [#5969](https://github.com/paritytech/parity/pull/5969)
+- Clean up function naming in RPC error module [#5995](https://github.com/paritytech/parity/pull/5995)
+- Fix underflow in gas calculation [#5975](https://github.com/paritytech/parity/pull/5975)
+- PubSub for parity-js [#5830](https://github.com/paritytech/parity/pull/5830)
+- Report whether a peer was kept from `Handler::on_connect` [#5958](https://github.com/paritytech/parity/pull/5958)
+- Implement skeleton for transaction index and epoch transition proof PIP messages [#5908](https://github.com/paritytech/parity/pull/5908)
+- TransactionQueue improvements [#5917](https://github.com/paritytech/parity/pull/5917)
+- constant time HMAC comparison and clarify docs in ethkey [#5952](https://github.com/paritytech/parity/pull/5952)
+- Avoid pre-computing jump destinations [#5954](https://github.com/paritytech/parity/pull/5954)
+- Upgrade elastic array [#5949](https://github.com/paritytech/parity/pull/5949)
+- PoA: Wait for transition finality before applying [#5774](https://github.com/paritytech/parity/pull/5774)
+- Logs Pub-Sub [#5705](https://github.com/paritytech/parity/pull/5705)
+- Add the command to install the parity snap [#5945](https://github.com/paritytech/parity/pull/5945)
+- Reduce unnecessary allocations [#5944](https://github.com/paritytech/parity/pull/5944)
+- Clarify confusing messages. [#5935](https://github.com/paritytech/parity/pull/5935)
+- Content Security Policy [#5790](https://github.com/paritytech/parity/pull/5790)
+- CLI: Export error message and less verbose peer counter. [#5870](https://github.com/paritytech/parity/pull/5870)
+- network: make it more explicit about StreamToken and TimerToken [#5939](https://github.com/paritytech/parity/pull/5939)
+- sync: make it more idiomatic rust [#5938](https://github.com/paritytech/parity/pull/5938)
+- Prioritize accounts over address book [#5909](https://github.com/paritytech/parity/pull/5909)
+- Fixing failing compilation of RPC test on master. [#5916](https://github.com/paritytech/parity/pull/5916)
+- Empty local middleware, until explicitly requested [#5912](https://github.com/paritytech/parity/pull/5912)
+- Cancel propagated TX [#5899](https://github.com/paritytech/parity/pull/5899)
+- fix minor race condition in aura seal generation [#5910](https://github.com/paritytech/parity/pull/5910)
+- Docs for Pub-Sub, optional parameter for parity_subscribe [#5833](https://github.com/paritytech/parity/pull/5833)
+- Fix gas editor doubling-up on gas [#5820](https://github.com/paritytech/parity/pull/5820)
+- Information about used paths added to general output block [#5904](https://github.com/paritytech/parity/pull/5904)
+- Domain-locked web tokens. [#5894](https://github.com/paritytech/parity/pull/5894)
+- Removed panic handlers [#5895](https://github.com/paritytech/parity/pull/5895)
+- Latest changes from Rust RocksDB binding merged [#5905](https://github.com/paritytech/parity/pull/5905)
+- Adjust keyethereum/secp256 aliasses [#5903](https://github.com/paritytech/parity/pull/5903)
+- Keyethereum fs dependency [#5902](https://github.com/paritytech/parity/pull/5902)
+- Ethereum Classic Monetary Policy [#5741](https://github.com/paritytech/parity/pull/5741)
+- Initial token should allow full access. [#5873](https://github.com/paritytech/parity/pull/5873)
+- Fixed account selection for Dapps on public node [#5856](https://github.com/paritytech/parity/pull/5856)
+- blacklist bad snapshot manifest hashes upon failure [#5874](https://github.com/paritytech/parity/pull/5874)
+- Fix wrongly called timeouts [#5838](https://github.com/paritytech/parity/pull/5838)
+- ArchiveDB and other small fixes [#5867](https://github.com/paritytech/parity/pull/5867)
+- convert try!() to ? [#5866](https://github.com/paritytech/parity/pull/5866)
+- Make config file optional in systemd [#5847](https://github.com/paritytech/parity/pull/5847)
+- EIP-116 (214), [#4833](https://github.com/paritytech/parity/issues/4833) [#4851](https://github.com/paritytech/parity/pull/4851)
+- all executables are workspace members [#5865](https://github.com/paritytech/parity/pull/5865)
+- minor optimizations of the modexp builtin [#5860](https://github.com/paritytech/parity/pull/5860)
+- three small commits for HashDB and MemoryDB [#5766](https://github.com/paritytech/parity/pull/5766)
+- use rust 1.18's retain to boost the purge performance [#5801](https://github.com/paritytech/parity/pull/5801)
+- Allow IPFS server to accept POST requests [#5858](https://github.com/paritytech/parity/pull/5858)
+- Dutch i18n from [#5802](https://github.com/paritytech/parity/issues/5802) for master [#5836](https://github.com/paritytech/parity/pull/5836)
+- Typos in token deploy dapp ui [#5851](https://github.com/paritytech/parity/pull/5851)
+- A CLI flag to allow fast transaction signing when account is unlocked. [#5778](https://github.com/paritytech/parity/pull/5778)
+- Removing `additional` field from EVM instructions [#5821](https://github.com/paritytech/parity/pull/5821)
+- Don't fail on wrong log decoding [#5813](https://github.com/paritytech/parity/pull/5813)
+- Use randomized subscription ids for PubSub [#5756](https://github.com/paritytech/parity/pull/5756)
+- Fixed mem write for empty slice [#5827](https://github.com/paritytech/parity/pull/5827)
+- Fix party technologies [#5810](https://github.com/paritytech/parity/pull/5810)
+- Revert "Fixed mem write for empty slice" [#5826](https://github.com/paritytech/parity/pull/5826)
+- Fixed mem write for empty slice [#5825](https://github.com/paritytech/parity/pull/5825)
+- Fix JS tests [#5822](https://github.com/paritytech/parity/pull/5822)
+- Bump native-tls and openssl crates. [#5817](https://github.com/paritytech/parity/pull/5817)
+- Public node using WASM [#5734](https://github.com/paritytech/parity/pull/5734)
+- enforce block signer == author field in PoA [#5808](https://github.com/paritytech/parity/pull/5808)
+- Fix stack display in evmbin. [#5733](https://github.com/paritytech/parity/pull/5733)
+- Disable UI if it's not compiled in. [#5773](https://github.com/paritytech/parity/pull/5773)
+- Require phrase confirmation. [#5731](https://github.com/paritytech/parity/pull/5731)
+- Duration limit made optional for EthashParams [#5777](https://github.com/paritytech/parity/pull/5777)
+- Update Changelog for 1.6.8 [#5798](https://github.com/paritytech/parity/pull/5798)
+- Replace Ethcore comany name in T&C and some other places [#5796](https://github.com/paritytech/parity/pull/5796)
+- PubSub for IPC. [#5800](https://github.com/paritytech/parity/pull/5800)
+- Fix terminology distributed -> decentralized applications [#5797](https://github.com/paritytech/parity/pull/5797)
+- Disable compression for RLP strings [#5786](https://github.com/paritytech/parity/pull/5786)
+- update the source for the snapcraft package [#5781](https://github.com/paritytech/parity/pull/5781)
+- Fixed default UI port for mac installer [#5782](https://github.com/paritytech/parity/pull/5782)
+- Block invalid account name creation [#5784](https://github.com/paritytech/parity/pull/5784)
+- Update Cid/multihash/ring/tinykeccak [#5785](https://github.com/paritytech/parity/pull/5785)
+- use NULL_RLP, remove NULL_RLP_STATIC [#5742](https://github.com/paritytech/parity/pull/5742)
+- Blacklist empty phrase account. [#5730](https://github.com/paritytech/parity/pull/5730)
+- EIP-211 RETURNDATACOPY and RETURNDATASIZE [#5678](https://github.com/paritytech/parity/pull/5678)
+- Bump mio [#5763](https://github.com/paritytech/parity/pull/5763)
+- Fixing UI issues after UI server refactor [#5710](https://github.com/paritytech/parity/pull/5710)
+- Fix WS server expose issue. [#5728](https://github.com/paritytech/parity/pull/5728)
+- Fix local transactions without condition. [#5716](https://github.com/paritytech/parity/pull/5716)
+- Bump parity-wordlist. [#5748](https://github.com/paritytech/parity/pull/5748)
+- two small changes in evm [#5700](https://github.com/paritytech/parity/pull/5700)
+- Evmbin: JSON format printing pre-state. [#5712](https://github.com/paritytech/parity/pull/5712)
+- Recover from empty phrase in dev mode [#5698](https://github.com/paritytech/parity/pull/5698)
+- EIP-210 BLOCKHASH changes [#5505](https://github.com/paritytech/parity/pull/5505)
+- fixes typo [#5708](https://github.com/paritytech/parity/pull/5708)
+- Bump rocksdb [#5707](https://github.com/paritytech/parity/pull/5707)
+- Fixed --datadir option [#5697](https://github.com/paritytech/parity/pull/5697)
+- rpc -> weak to arc [#5688](https://github.com/paritytech/parity/pull/5688)
+- typo fix [#5699](https://github.com/paritytech/parity/pull/5699)
+- Revamping parity-evmbin [#5696](https://github.com/paritytech/parity/pull/5696)
+- Update dependencies and bigint api [#5685](https://github.com/paritytech/parity/pull/5685)
+- UI server refactoring [#5580](https://github.com/paritytech/parity/pull/5580)
+- Fix from/into electrum in ethkey [#5686](https://github.com/paritytech/parity/pull/5686)
+- Add unit tests [#5668](https://github.com/paritytech/parity/pull/5668)
+- Guanqun add unit tests [#5671](https://github.com/paritytech/parity/pull/5671)
+- Parity-PubSub as a separate API. [#5676](https://github.com/paritytech/parity/pull/5676)
+- EIP-140 REVERT opcode [#5477](https://github.com/paritytech/parity/pull/5477)
+- Update CHANGELOG for 1.6.7 [#5683](https://github.com/paritytech/parity/pull/5683)
+- Updated docs slightly. [#5674](https://github.com/paritytech/parity/pull/5674)
+- Fix build [#5684](https://github.com/paritytech/parity/pull/5684)
+- Back-references for the on-demand service [#5573](https://github.com/paritytech/parity/pull/5573)
+- Dynamically adjust PIP request costs based on gathered data [#5603](https://github.com/paritytech/parity/pull/5603)
+- use cargo workspace [#5601](https://github.com/paritytech/parity/pull/5601)
+- Latest headers Pub-Sub [#5655](https://github.com/paritytech/parity/pull/5655)
+- improved dockerfile builds [#5659](https://github.com/paritytech/parity/pull/5659)
+- Adding CLI options: port shift and unsafe expose. [#5677](https://github.com/paritytech/parity/pull/5677)
+- Report missing author in Aura [#5583](https://github.com/paritytech/parity/pull/5583)
+- typo fix [#5669](https://github.com/paritytech/parity/pull/5669)
+- Remove public middleware (temporary) [#5665](https://github.com/paritytech/parity/pull/5665)
+- Remove additional polyfill [#5663](https://github.com/paritytech/parity/pull/5663)
+- Importing accounts from files. [#5644](https://github.com/paritytech/parity/pull/5644)
+- remove the deprecated options in rustfmt.toml [#5616](https://github.com/paritytech/parity/pull/5616)
+- Update the Console dapp [#5602](https://github.com/paritytech/parity/pull/5602)
+- Create an account for chain=dev [#5612](https://github.com/paritytech/parity/pull/5612)
+- Use babel-runtime as opposed to babel-polyfill [#5662](https://github.com/paritytech/parity/pull/5662)
+- Connection dialog timestamp info [#5554](https://github.com/paritytech/parity/pull/5554)
+- use copy_from_slice instead of for loop [#5647](https://github.com/paritytech/parity/pull/5647)
+- Light friendly dapps [#5634](https://github.com/paritytech/parity/pull/5634)
+- Add Recover button to Accounts and warnings [#5645](https://github.com/paritytech/parity/pull/5645)
+- Update eth_sign docs. [#5631](https://github.com/paritytech/parity/pull/5631)
+- Proper signer Pub-Sub for pending requests. [#5594](https://github.com/paritytech/parity/pull/5594)
+- Bump bigint to 1.0.5 [#5641](https://github.com/paritytech/parity/pull/5641)
+- PoA warp implementation [#5488](https://github.com/paritytech/parity/pull/5488)
+- Improve on-demand dispatch and add support for batch requests [#5419](https://github.com/paritytech/parity/pull/5419)
+- Use default account for sending transactions [#5588](https://github.com/paritytech/parity/pull/5588)
+- Add peer management to the Status tab [#5566](https://github.com/paritytech/parity/pull/5566)
+- Add monotonic step transition [#5587](https://github.com/paritytech/parity/pull/5587)
+- Decrypting for external accounts. [#5581](https://github.com/paritytech/parity/pull/5581)
+- only enable warp sync when engine supports it [#5595](https://github.com/paritytech/parity/pull/5595)
+- fix the doc of installing rust [#5586](https://github.com/paritytech/parity/pull/5586)
+- Small fixes [#5584](https://github.com/paritytech/parity/pull/5584)
+- SecretStore: remove session on master node [#5545](https://github.com/paritytech/parity/pull/5545)
+- run-clean [#5607](https://github.com/paritytech/parity/pull/5607)
+- relicense RLP to MIT/Apache2 [#5591](https://github.com/paritytech/parity/pull/5591)
+- Fix eth_sign signature encoding. [#5597](https://github.com/paritytech/parity/pull/5597)
+- Check pending request on Node local transactions [#5564](https://github.com/paritytech/parity/pull/5564)
+- Add tooltips on ActionBar [#5562](https://github.com/paritytech/parity/pull/5562)
+- Can't deploy without compiling Contract [#5593](https://github.com/paritytech/parity/pull/5593)
+- Add a warning when node is syncing [#5565](https://github.com/paritytech/parity/pull/5565)
+- Update registry middleware [#5585](https://github.com/paritytech/parity/pull/5585)
+- Set block condition to BigNumber in MethodDecoding [#5592](https://github.com/paritytech/parity/pull/5592)
+- Load the sources immediately in Contract Dev [#5575](https://github.com/paritytech/parity/pull/5575)
+- Remove formal verification messages in Dev Contract [#5574](https://github.com/paritytech/parity/pull/5574)
+- Fix event params decoding when no names for parameters [#5567](https://github.com/paritytech/parity/pull/5567)
+- Do not convert to Dates twice [#5563](https://github.com/paritytech/parity/pull/5563)
+- Fix Multisig wallet settings [#5560](https://github.com/paritytech/parity/pull/5560)
+- Typo [#5547](https://github.com/paritytech/parity/pull/5547)
+- Generic PubSub implementation [#5456](https://github.com/paritytech/parity/pull/5456)
+- Fix CI paths. [#5570](https://github.com/paritytech/parity/pull/5570)
+- reorg into blocks before minimum history [#5558](https://github.com/paritytech/parity/pull/5558)
+- EIP-86 update [#5506](https://github.com/paritytech/parity/pull/5506)
+- Secretstore RPCs + integration [#5439](https://github.com/paritytech/parity/pull/5439)
+- Fixes Parity Bar position [#5557](https://github.com/paritytech/parity/pull/5557)
+- Fixes invalid log in BadgeReg events [#5556](https://github.com/paritytech/parity/pull/5556)
+- Fix issues in Contract Development view [#5555](https://github.com/paritytech/parity/pull/5555)
+- Added missing methods [#5542](https://github.com/paritytech/parity/pull/5542)
+- option to disable persistent txqueue [#5544](https://github.com/paritytech/parity/pull/5544)
+- Bump jsonrpc [#5552](https://github.com/paritytech/parity/pull/5552)
+- Retrieve block headers only for header-only info [#5480](https://github.com/paritytech/parity/pull/5480)
+- add snap to CI [#5519](https://github.com/paritytech/parity/pull/5519)
+- Pass additional data when reporting [#5527](https://github.com/paritytech/parity/pull/5527)
+- Calculate post-constructors state root in spec at load time [#5523](https://github.com/paritytech/parity/pull/5523)
+- Fix utf8 decoding [#5533](https://github.com/paritytech/parity/pull/5533)
+- Add CHANGELOG.md [#5513](https://github.com/paritytech/parity/pull/5513)
+- Change all occurrences of ethcore.io into parity.io [#5528](https://github.com/paritytech/parity/pull/5528)
+- Memory usage optimization [#5526](https://github.com/paritytech/parity/pull/5526)
+- Compose transaction RPC. [#5524](https://github.com/paritytech/parity/pull/5524)
+- Support external eth_sign  [#5481](https://github.com/paritytech/parity/pull/5481)
+- Treat block numbers as strings, not BigNums. [#5449](https://github.com/paritytech/parity/pull/5449)
+- npm cleanups [#5512](https://github.com/paritytech/parity/pull/5512)
+- Export acc js [#4973](https://github.com/paritytech/parity/pull/4973)
+- YARN [#5395](https://github.com/paritytech/parity/pull/5395)
+- Fix linting issues [#5511](https://github.com/paritytech/parity/pull/5511)
+- Chinese Translation [#5460](https://github.com/paritytech/parity/pull/5460)
+- Fixing secretstore TODOs - part 2 [#5416](https://github.com/paritytech/parity/pull/5416)
+- fix json format of state snapshot [#5504](https://github.com/paritytech/parity/pull/5504)
+- Bump jsonrpc version [#5489](https://github.com/paritytech/parity/pull/5489)
+- Groundwork for generalized warp sync [#5454](https://github.com/paritytech/parity/pull/5454)
+- Add the packaging metadata to build the parity snap [#5496](https://github.com/paritytech/parity/pull/5496)
+- Cancel tx JS [#4958](https://github.com/paritytech/parity/pull/4958)
+- EIP-212 (bn128 curve pairing) [#5307](https://github.com/paritytech/parity/pull/5307)
+- fix panickers in tree-route [#5479](https://github.com/paritytech/parity/pull/5479)
+- Update links to etherscan.io [#5455](https://github.com/paritytech/parity/pull/5455)
+- Refresh UI on nodeKind changes, e.g. personal -> public [#5312](https://github.com/paritytech/parity/pull/5312)
+- Correct contract address for EIP-86 [#5473](https://github.com/paritytech/parity/pull/5473)
+- Force two decimals for USD conversion rate [#5471](https://github.com/paritytech/parity/pull/5471)
+- Refactoring of Tokens & Balances [#5372](https://github.com/paritytech/parity/pull/5372)
+- Background-repeat round [#5475](https://github.com/paritytech/parity/pull/5475)
+- nl i18n updated [#5461](https://github.com/paritytech/parity/pull/5461)
+- Show ETH value (even 0) if ETH transfer in transaction list [#5406](https://github.com/paritytech/parity/pull/5406)
+- Store the pending requests per network version [#5405](https://github.com/paritytech/parity/pull/5405)
+- Use in-memory database for tests [#5451](https://github.com/paritytech/parity/pull/5451)
+- WebSockets RPC server [#5425](https://github.com/paritytech/parity/pull/5425)
+- Added missing docs [#5452](https://github.com/paritytech/parity/pull/5452)
+- Tests and tweaks for public node middleware [#5417](https://github.com/paritytech/parity/pull/5417)
+- Fix removal of hash-mismatched files. [#5440](https://github.com/paritytech/parity/pull/5440)
+- parity_getBlockHeaderByNumber and LightFetch utility [#5383](https://github.com/paritytech/parity/pull/5383)
+- New state tests [#5418](https://github.com/paritytech/parity/pull/5418)
+- Fix buffer length for QR code gen. [#5447](https://github.com/paritytech/parity/pull/5447)
+- Add raw hash signing [#5423](https://github.com/paritytech/parity/pull/5423)
+- Filters and block RPCs for the light client [#5320](https://github.com/paritytech/parity/pull/5320)
+- Work around mismatch for QR checksum [#5374](https://github.com/paritytech/parity/pull/5374)
+- easy to use conversion from and to string for ethstore::Crypto [#5437](https://github.com/paritytech/parity/pull/5437)
+- Tendermint fixes [#5415](https://github.com/paritytech/parity/pull/5415)
+- Adrianbrink lightclientcache branch. [#5428](https://github.com/paritytech/parity/pull/5428)
+- Add caching to HeaderChain struct [#5403](https://github.com/paritytech/parity/pull/5403)
+- Add decryption to the UI (in the Signer) [#5422](https://github.com/paritytech/parity/pull/5422)
+- Add CIDv0 RPC [#5414](https://github.com/paritytech/parity/pull/5414)
+- Updating documentation for RPCs [#5392](https://github.com/paritytech/parity/pull/5392)
+- Fixing secretstore TODOs - part 1 [#5386](https://github.com/paritytech/parity/pull/5386)
+- Fixing disappearing content. [#5399](https://github.com/paritytech/parity/pull/5399)
+- Snapshot chunks packed by size [#5318](https://github.com/paritytech/parity/pull/5318)
+- APIs wildcards and simple arithmetic. [#5402](https://github.com/paritytech/parity/pull/5402)
+- Fixing compilation without dapps. [#5410](https://github.com/paritytech/parity/pull/5410)
+- Don't use port 8080 anymore [#5397](https://github.com/paritytech/parity/pull/5397)
+- Quick'n'dirty CLI for the light client [#5002](https://github.com/paritytech/parity/pull/5002)
+- set gas limit before proving transactions [#5401](https://github.com/paritytech/parity/pull/5401)
+- Public node: perf and fixes [#5390](https://github.com/paritytech/parity/pull/5390)
+- Straight download path in the readme [#5393](https://github.com/paritytech/parity/pull/5393)
+- On-chain ACL checker for secretstore [#5015](https://github.com/paritytech/parity/pull/5015)
+- Allow empty-encoded values from QR encoding [#5385](https://github.com/paritytech/parity/pull/5385)
+- Update npm build for new inclusions [#5381](https://github.com/paritytech/parity/pull/5381)
+- Fix for Ubuntu Dockerfile [#5356](https://github.com/paritytech/parity/pull/5356)
+- Secretstore over network [#4974](https://github.com/paritytech/parity/pull/4974)
+- Dapps and RPC server merge [#5365](https://github.com/paritytech/parity/pull/5365)
+- trigger js build release [#5379](https://github.com/paritytech/parity/pull/5379)
+- Update expanse json with fork at block 600000 [#5351](https://github.com/paritytech/parity/pull/5351)
+- Futures-based native wrappers for contract ABIs [#5341](https://github.com/paritytech/parity/pull/5341)
+- Kovan warp sync fixed [#5337](https://github.com/paritytech/parity/pull/5337)
+- Aura eip155 validation transition [#5362](https://github.com/paritytech/parity/pull/5362)
+- Shared wordlist for brain wallets [#5331](https://github.com/paritytech/parity/pull/5331)
+- Allow signing via Qr [#4881](https://github.com/paritytech/parity/pull/4881)
+- Allow entry of url or hash for DappReg meta [#5360](https://github.com/paritytech/parity/pull/5360)
+- Adjust tx overlay colours [#5353](https://github.com/paritytech/parity/pull/5353)
+- Add ability to disallow API subscriptions [#5366](https://github.com/paritytech/parity/pull/5366)
+- EIP-213 (bn128 curve operations) [#4999](https://github.com/paritytech/parity/pull/4999)
+- Fix analize output file name [#5357](https://github.com/paritytech/parity/pull/5357)
+- Add default eip155 validation [#5346](https://github.com/paritytech/parity/pull/5346)
+- Add new seed nodes for Classic chain [#5345](https://github.com/paritytech/parity/pull/5345)
+- Shared wordlist for frontend [#5336](https://github.com/paritytech/parity/pull/5336)
+- fix rpc tests [#5338](https://github.com/paritytech/parity/pull/5338)
+- Public node with accounts and signing in Frontend [#5304](https://github.com/paritytech/parity/pull/5304)
+- Rename Status/Status -> Status/NodeStatus [#5332](https://github.com/paritytech/parity/pull/5332)
+- Updating paths to repos. [#5330](https://github.com/paritytech/parity/pull/5330)
+- Separate status for canceled local transactions. [#5319](https://github.com/paritytech/parity/pull/5319)
+- Cleanup the Status View [#5317](https://github.com/paritytech/parity/pull/5317)
+- Update UI minimised requests [#5324](https://github.com/paritytech/parity/pull/5324)
+- Order signer transactions FIFO [#5321](https://github.com/paritytech/parity/pull/5321)
+- updating dependencies [#5028](https://github.com/paritytech/parity/pull/5028)
+- Minimise transactions progress [#4942](https://github.com/paritytech/parity/pull/4942)
+- Fix eth_sign showing as wallet account [#5309](https://github.com/paritytech/parity/pull/5309)
+- Ropsten revival [#5302](https://github.com/paritytech/parity/pull/5302)
+- Strict validation transitions [#4988](https://github.com/paritytech/parity/pull/4988)
+- Fix default list sorting [#5303](https://github.com/paritytech/parity/pull/5303)
+- Use unique owners for multisig wallets [#5298](https://github.com/paritytech/parity/pull/5298)
+- Copy all existing i18n strings into zh (as-is translation aid) [#5305](https://github.com/paritytech/parity/pull/5305)
+- Fix booleans in Typedinput [#5295](https://github.com/paritytech/parity/pull/5295)
+- node kind RPC [#5025](https://github.com/paritytech/parity/pull/5025)
+- Fix the use of MobX in playground [#5294](https://github.com/paritytech/parity/pull/5294)
+- Fine grained snapshot chunking [#5019](https://github.com/paritytech/parity/pull/5019)
+- Add lint:i18n to find missing & extra keys [#5290](https://github.com/paritytech/parity/pull/5290)
+- Scaffolding for zh translations, including first-round by @btceth [#5289](https://github.com/paritytech/parity/pull/5289)
+- JS package bumps [#5287](https://github.com/paritytech/parity/pull/5287)
+- Auto-extract new i18n strings (update) [#5288](https://github.com/paritytech/parity/pull/5288)
+- eip100b [#5027](https://github.com/paritytech/parity/pull/5027)
+- Set earliest era in snapshot restoration [#5021](https://github.com/paritytech/parity/pull/5021)
+- Avoid clogging up tmp when updater dir has bad permissions. [#5024](https://github.com/paritytech/parity/pull/5024)
+- Resilient warp sync [#5018](https://github.com/paritytech/parity/pull/5018)
+- Create webpack analysis files (size) [#5009](https://github.com/paritytech/parity/pull/5009)
+- Dispatch an open event on drag of Parity Bar [#4987](https://github.com/paritytech/parity/pull/4987)
+- Various installer and tray apps fixes [#4970](https://github.com/paritytech/parity/pull/4970)
+- Export account RPC [#4967](https://github.com/paritytech/parity/pull/4967)
+- Switching ValidatorSet [#4961](https://github.com/paritytech/parity/pull/4961)
+- Implement PIP messages, request builder, and handlers [#4945](https://github.com/paritytech/parity/pull/4945)
+- auto lint [#5003](https://github.com/paritytech/parity/pull/5003)
+- Fix FireFox overflows [#5000](https://github.com/paritytech/parity/pull/5000)
+- Show busy indicator, focus first field in password change [#4997](https://github.com/paritytech/parity/pull/4997)
+- Consistent store naming in the Signer components [#4996](https://github.com/paritytech/parity/pull/4996)
+- second (and last) part of rlp refactor [#4901](https://github.com/paritytech/parity/pull/4901)
+- Double click to select account creation type [#4986](https://github.com/paritytech/parity/pull/4986)
+- Fixes to the Registry dapp [#4984](https://github.com/paritytech/parity/pull/4984)
+- Extend api.util [#4979](https://github.com/paritytech/parity/pull/4979)
+- Updating JSON-RPC crates [#4934](https://github.com/paritytech/parity/pull/4934)
+- splitting part of util into smaller crates [#4956](https://github.com/paritytech/parity/pull/4956)
+- Updating syntex et al [#4983](https://github.com/paritytech/parity/pull/4983)
+- EIP198 and built-in activation [#4926](https://github.com/paritytech/parity/pull/4926)
+- Fix MethodDecoding for Arrays [#4977](https://github.com/paritytech/parity/pull/4977)
+- Try to fix WS race condition connection [#4976](https://github.com/paritytech/parity/pull/4976)
+- eth_sign where account === undefined [#4964](https://github.com/paritytech/parity/pull/4964)
+- Fix references to api outside of `parity.js` [#4981](https://github.com/paritytech/parity/pull/4981)
+- Fix Password Dialog form overflow [#4968](https://github.com/paritytech/parity/pull/4968)
+- Changing Mutex into RwLock for transaction queue [#4951](https://github.com/paritytech/parity/pull/4951)
+- Disable max seal period for external sealing [#4927](https://github.com/paritytech/parity/pull/4927)
+- Attach hardware wallets already in addressbook [#4912](https://github.com/paritytech/parity/pull/4912)
+- rlp serialization refactor [#4873](https://github.com/paritytech/parity/pull/4873)
+- Bump nanomsg [#4965](https://github.com/paritytech/parity/pull/4965)
+- Fixed multi-chunk ledger transactions on windows [#4960](https://github.com/paritytech/parity/pull/4960)
+- Fix outputs in Contract Constant Queries [#4953](https://github.com/paritytech/parity/pull/4953)
+- systemd: Start parity after network.target [#4952](https://github.com/paritytech/parity/pull/4952)
+- Remove transaction RPC [#4949](https://github.com/paritytech/parity/pull/4949)
+- Swap out ethcore.io url for parity.io [#4947](https://github.com/paritytech/parity/pull/4947)
+- Don't remove confirmed requests to early. [#4933](https://github.com/paritytech/parity/pull/4933)
+- Ensure sealing work enabled in miner once subscribers added [#4930](https://github.com/paritytech/parity/pull/4930)
+- Add z-index to small modals as well [#4923](https://github.com/paritytech/parity/pull/4923)
+- Bump nanomsg [#4946](https://github.com/paritytech/parity/pull/4946)
+- Bumping multihash and libc [#4943](https://github.com/paritytech/parity/pull/4943)
+- Edit ETH value, gas and gas price in Contract Deployment [#4919](https://github.com/paritytech/parity/pull/4919)
+- Add ability to configure Secure API [#4922](https://github.com/paritytech/parity/pull/4922)
+- Add Token image from URL [#4916](https://github.com/paritytech/parity/pull/4916)
+- Use the registry fee in Token Deployment dapp [#4915](https://github.com/paritytech/parity/pull/4915)
+- Add reseal max period [#4903](https://github.com/paritytech/parity/pull/4903)
+- Detect rust compiler version in Parity build script, closes 4742 [#4907](https://github.com/paritytech/parity/pull/4907)
+- Add Vaults logic to First Run [#4914](https://github.com/paritytech/parity/pull/4914)
+- Updated gcc and rayon crates to remove outdated num_cpus dependency [#4909](https://github.com/paritytech/parity/pull/4909)
+- Renaming evm binary to avoid conflicts. [#4899](https://github.com/paritytech/parity/pull/4899)
+- Better error handling for traces RPC [#4849](https://github.com/paritytech/parity/pull/4849)
+- Safari SectionList fix [#4895](https://github.com/paritytech/parity/pull/4895)
+- Safari Dialog scrolling fix [#4893](https://github.com/paritytech/parity/pull/4893)
+- Spelling :) [#4900](https://github.com/paritytech/parity/pull/4900)
+- Additional kovan params [#4892](https://github.com/paritytech/parity/pull/4892)
+- trigger js-precompiled build [#4898](https://github.com/paritytech/parity/pull/4898)
+- Recalculate receipt roots in close_and_lock [#4884](https://github.com/paritytech/parity/pull/4884)
+- Reload UI on network switch [#4864](https://github.com/paritytech/parity/pull/4864)
+- Update parity-ui-precompiled with branch [#4850](https://github.com/paritytech/parity/pull/4850)
+- OSX Installer is no longer experimental [#4882](https://github.com/paritytech/parity/pull/4882)
+- Chain-selection from UI [#4859](https://github.com/paritytech/parity/pull/4859)
+- removed redundant (and unused) FromJson trait [#4871](https://github.com/paritytech/parity/pull/4871)
+- fix typos and grammar [#4880](https://github.com/paritytech/parity/pull/4880)
+- Remove old experimental remote-db code [#4872](https://github.com/paritytech/parity/pull/4872)
+- removed redundant FixedHash trait, fixes [#4029](https://github.com/paritytech/parity/issues/4029) [#4866](https://github.com/paritytech/parity/pull/4866)
+- Reference JSON-RPC more changes-friendly [#4870](https://github.com/paritytech/parity/pull/4870)
+- Better handling of Solidity compliation [#4860](https://github.com/paritytech/parity/pull/4860)
+- Go through contract links in Transaction List display [#4863](https://github.com/paritytech/parity/pull/4863)
+- Fix Gas Price Selector Tooltips [#4865](https://github.com/paritytech/parity/pull/4865)
+- Fix auto-updater [#4867](https://github.com/paritytech/parity/pull/4867)
+- Make the UI work offline [#4861](https://github.com/paritytech/parity/pull/4861)
+- Subscribe to accounts info in Signer / ParityBar [#4856](https://github.com/paritytech/parity/pull/4856)
+- Don't link libsnappy explicitly [#4841](https://github.com/paritytech/parity/pull/4841)
+- Fix paste in Inputs [#4854](https://github.com/paritytech/parity/pull/4854)
+- Extract i18n from shared UI components [#4834](https://github.com/paritytech/parity/pull/4834)
+- Fix paste in Inputs [#4844](https://github.com/paritytech/parity/pull/4844)
+- Pull contract deployment title from available steps [#4848](https://github.com/paritytech/parity/pull/4848)
+- Supress USB error message [#4839](https://github.com/paritytech/parity/pull/4839)
+- Fix getTransactionCount in --geth mode [#4837](https://github.com/paritytech/parity/pull/4837)
+- CI: test coverage (for core and js) [#4832](https://github.com/paritytech/parity/pull/4832)
+- Lowering threshold for transactions above gas limit [#4831](https://github.com/paritytech/parity/pull/4831)
+- Fix TxViewer when no `to` (contract deployment) [#4847](https://github.com/paritytech/parity/pull/4847)
+- Fix method decoding [#4845](https://github.com/paritytech/parity/pull/4845)
+- Add React Hot Reload to dapps + TokenDeploy fix [#4846](https://github.com/paritytech/parity/pull/4846)
+- Dapps show multiple times in some cases [#4843](https://github.com/paritytech/parity/pull/4843)
+- Fixes to the Registry dapp [#4838](https://github.com/paritytech/parity/pull/4838)
+- Show token icons on list summary pages [#4826](https://github.com/paritytech/parity/pull/4826)
+- Calibrate step before rejection [#4800](https://github.com/paritytech/parity/pull/4800)
+- Add replay protection [#4808](https://github.com/paritytech/parity/pull/4808)
+- Better icon on windows [#4804](https://github.com/paritytech/parity/pull/4804)
+- Better logic for contract deployments detection [#4821](https://github.com/paritytech/parity/pull/4821)
+- Fix wrong default values for contract queries inputs [#4819](https://github.com/paritytech/parity/pull/4819)
+- Adjust selection colours/display [#4811](https://github.com/paritytech/parity/pull/4811)
+- Update the Wallet Library Registry key [#4817](https://github.com/paritytech/parity/pull/4817)
+- Update Wallet to new Wallet Code [#4805](https://github.com/paritytech/parity/pull/4805)
+
+## Parity [v1.6.10](https://github.com/paritytech/parity/releases/tag/v1.6.10) (2017-07-25)
+
+This is a hotfix release for the stable channel addressing the recent [multi-signature wallet vulnerability](https://blog.parity.io/security-alert-high-2/). Note, upgrading is not mandatory, and all future multi-sig wallets created by any version of Parity are secure.
+
+All Changes:
+
+- Backports for stable [#6116](https://github.com/paritytech/parity/pull/6116)
+  - Remove chunk to restore from pending set only upon successful import [#6112](https://github.com/paritytech/parity/pull/6112)
+  - Blacklist bad snapshot manifest hashes upon failure [#5874](https://github.com/paritytech/parity/pull/5874)
+  - Bump snap version and tweak importing detection logic [#6079](https://github.com/paritytech/parity/pull/6079) (modified to work)
+- Fix docker build for stable [#6118](https://github.com/paritytech/parity/pull/6118)
+- Update wallet library binaries [#6108](https://github.com/paritytech/parity/pull/6108)
+- Backported wallet fix [#6104](https://github.com/paritytech/parity/pull/6104)
+  - Fix initialisation bug. ([#6102](https://github.com/paritytech/parity/pull/6102))
+  - Update wallet library modifiers ([#6103](https://github.com/paritytech/parity/pull/6103))
+- Bump to v1.6.10
+
+## Parity [v1.6.9](https://github.com/paritytech/parity/releases/tag/v1.6.9) (2017-07-16)
+
+This is a first stable release of 1.6 series. It contains a number of minor fixes and introduces the `--reseal-on-uncles` option for miners.
+
+Full list of changes:
+
+- Backports [#6061](https://github.com/paritytech/parity/pull/6061)
+  - Ethereum Classic Monetary Policy [#5741](https://github.com/paritytech/parity/pull/5741)
+    - Update rewards for uncle miners for ECIP1017
+    - Fix an off-by-one error in ECIP1017 era calculation
+    - `ecip1017_era_rounds` missing from EthashParams when run in build bot
+    - strip out ecip1017_eras_block_reward function and add unit test
+  - JS precompiled set to stable
+- Backports [#6060](https://github.com/paritytech/parity/pull/6060)
+  - --reseal-on-uncle [#5940](https://github.com/paritytech/parity/pull/5940)
+    - Optimized uncle check
+    - Additional uncle check
+    - Updated comment
+  - Bump to v1.6.9
+  - CLI: Export error message and less verbose peer counter. [#5870](https://github.com/paritytech/parity/pull/5870)
+    - Removed numbed of active connections from informant
+    - Print error message when fatdb is required
+    - Remove peers from UI
+
 ## Parity [v1.6.8](https://github.com/paritytech/parity/releases/tag/v1.6.8) (2017-06-08)
 
 This release addresses:

Cargo.lock

@@ -106,6 +106,17 @@ version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bigint"
+version = "4.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -175,7 +186,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "bn"
 version = "0.4.4"
-source = "git+https://github.com/paritytech/bn#b97e95a45f4484a41a515338c4f0e093bf6675e0"
+source = "git+https://github.com/paritytech/bn#c9831a8d10d55045692394cbc10efe0321ddb16f"
 dependencies = [
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -253,11 +264,20 @@ dependencies = [
  "unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "coco"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "common-types"
 version = "0.1.0"
 dependencies = [
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethjson 0.1.0",
  "rlp 0.2.0",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -302,6 +322,11 @@ name = "crossbeam"
 version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "crunchy"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "crypt32-sys"
 version = "0.2.0"
@@ -343,14 +368,6 @@ dependencies = [
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "deque"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "difference"
 version = "1.0.0"
@@ -459,7 +476,7 @@ dependencies = [
  "ethcore-ipc-nano 1.7.0",
  "ethcore-logger 1.7.0",
  "ethcore-stratum 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethjson 0.1.0",
  "ethkey 0.2.0",
  "ethstore 0.1.0",
@@ -476,6 +493,7 @@ dependencies = [
  "num 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.0",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -490,7 +508,7 @@ dependencies = [
 name = "ethcore-bigint"
 version = "0.1.3"
 dependencies = [
- "bigint 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -527,7 +545,7 @@ name = "ethcore-ipc"
 version = "1.7.0"
 dependencies = [
  "ethcore-devtools 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "nanomsg 0.5.1 (git+https://github.com/paritytech/nanomsg.rs.git?branch=parity-1.7)",
  "semver 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -576,7 +594,7 @@ dependencies = [
  "ethcore-ipc 1.7.0",
  "ethcore-ipc-codegen 1.7.0",
  "ethcore-ipc-nano 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/paritytech/nanomsg.rs.git?branch=parity-1.7)",
  "semver 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -593,7 +611,7 @@ dependencies = [
  "ethcore-ipc 1.7.0",
  "ethcore-ipc-codegen 1.7.0",
  "ethcore-network 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "evm 0.1.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -632,7 +650,7 @@ dependencies = [
  "ethcore-devtools 1.7.0",
  "ethcore-io 1.7.0",
  "ethcore-logger 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethcrypto 0.1.0",
  "ethkey 0.2.0",
  "igd 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -663,11 +681,11 @@ dependencies = [
  "ethcore-ipc-codegen 1.7.0",
  "ethcore-ipc-nano 1.7.0",
  "ethcore-logger 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethcrypto 0.1.0",
  "ethkey 0.2.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.10.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-contracts 0.1.0",
@@ -693,7 +711,7 @@ dependencies = [
  "ethcore-ipc-codegen 1.7.0",
  "ethcore-ipc-nano 1.7.0",
  "ethcore-logger 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-macros 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -706,7 +724,7 @@ dependencies = [
 
 [[package]]
 name = "ethcore-util"
-version = "1.7.0"
+version = "1.7.4"
 dependencies = [
  "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -756,7 +774,7 @@ name = "ethjson"
 version = "0.1.0"
 dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -837,7 +855,7 @@ dependencies = [
  "ethcore-ipc-nano 1.7.0",
  "ethcore-light 1.7.0",
  "ethcore-network 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethkey 0.2.0",
  "heapsize 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -856,7 +874,7 @@ dependencies = [
  "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "common-types 0.1.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethjson 0.1.0",
  "evmjit 1.7.0",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -873,7 +891,8 @@ version = "0.1.0"
 dependencies = [
  "docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
+ "ethjson 0.1.0",
  "evm 0.1.0",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -900,7 +919,7 @@ name = "fetch"
 version = "0.1.0"
 dependencies = [
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -933,10 +952,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures-cpupool"
-version = "0.1.2"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -946,7 +964,7 @@ name = "gcc"
 version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rayon 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1118,7 +1136,7 @@ version = "1.7.0"
 dependencies = [
  "ethcore-ipc 1.7.0",
  "ethcore-ipc-codegen 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "semver 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1148,7 +1166,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "jsonrpc-core"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1160,7 +1178,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-http-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "hyper 0.10.0-a.0 (git+https://github.com/paritytech/hyper)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1173,7 +1191,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-ipc-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1186,7 +1204,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-macros"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-pubsub 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1196,7 +1214,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-minihttp-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1211,7 +1229,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-pubsub"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1221,7 +1239,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-server-utils"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "globset 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1234,7 +1252,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-tcp-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1248,7 +1266,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-ws-server"
 version = "7.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#5e79be8a098cdda221713992f4a46b41a1d4d8f0"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7#b5490782884218c5ccf74cd61e54904cb3a3aeed"
 dependencies = [
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-server-utils 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1512,7 +1530,7 @@ version = "0.1.0"
 dependencies = [
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethabi 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-contract-generator 0.1.0",
 ]
@@ -1541,6 +1559,21 @@ dependencies = [
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "node-health"
+version = "0.1.0"
+dependencies = [
+ "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ntp 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-reactor 0.1.0",
+ "parking_lot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "nodrop"
 version = "0.1.9"
@@ -1702,7 +1735,7 @@ dependencies = [
 
 [[package]]
 name = "parity"
-version = "1.7.0"
+version = "1.7.4"
 dependencies = [
  "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "app_dirs 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1722,15 +1755,16 @@ dependencies = [
  "ethcore-logger 1.7.0",
  "ethcore-secretstore 1.0.0",
  "ethcore-stratum 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethkey 0.2.0",
  "ethsync 1.7.0",
  "fdlimit 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "isatty 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "node-health 0.1.0",
  "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "number_prefix 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-dapps 1.7.0",
@@ -1767,17 +1801,16 @@ dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore-devtools 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "fetch 0.1.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-http-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "linked-hash-map 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ntp 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "node-health 0.1.0",
  "parity-dapps-glue 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-hash-fetch 1.7.0",
  "parity-reactor 0.1.0",
@@ -1812,7 +1845,7 @@ name = "parity-hash-fetch"
 version = "1.7.0"
 dependencies = [
  "ethabi 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "fetch 0.1.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1830,7 +1863,7 @@ version = "1.7.0"
 dependencies = [
  "cid 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "jsonrpc-http-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "multihash 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1843,7 +1876,7 @@ version = "0.1.0"
 dependencies = [
  "ethcore 1.7.0",
  "ethcore-io 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethkey 0.2.0",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.0",
@@ -1873,7 +1906,7 @@ dependencies = [
  "ethcore-ipc 1.7.0",
  "ethcore-light 1.7.0",
  "ethcore-logger 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethcrypto 0.1.0",
  "ethjson 0.1.0",
  "ethkey 0.2.0",
@@ -1882,7 +1915,7 @@ dependencies = [
  "evm 0.1.0",
  "fetch 0.1.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-http-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-ipc-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1892,6 +1925,7 @@ dependencies = [
  "jsonrpc-ws-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "multihash 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "node-health 0.1.0",
  "order-stat 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-reactor 0.1.0",
  "parity-updater 1.7.0",
@@ -1914,7 +1948,7 @@ dependencies = [
 name = "parity-rpc-client"
 version = "1.4.0"
 dependencies = [
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
  "jsonrpc-ws-server 7.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.7)",
@@ -1950,7 +1984,7 @@ name = "parity-ui"
 version = "1.7.0"
 dependencies = [
  "parity-ui-dev 1.7.0",
- "parity-ui-precompiled 1.4.0 (git+https://github.com/paritytech/js-precompiled.git)",
+ "parity-ui-precompiled 1.4.0 (git+https://github.com/paritytech/js-precompiled.git?branch=beta)",
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1964,7 +1998,7 @@ dependencies = [
 [[package]]
 name = "parity-ui-precompiled"
 version = "1.4.0"
-source = "git+https://github.com/paritytech/js-precompiled.git#b49a1d46cc6c545403d18579ef7ae9f9d14eea7e"
+source = "git+https://github.com/paritytech/js-precompiled.git?branch=beta#b24d0f6572640beb37924e709151fb124453c2e4"
 dependencies = [
  "parity-dapps-glue 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1977,7 +2011,7 @@ dependencies = [
  "ethcore 1.7.0",
  "ethcore-ipc 1.7.0",
  "ethcore-ipc-codegen 1.7.0",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "ethsync 1.7.0",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-common-types 1.7.0",
@@ -2188,18 +2222,27 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "0.7.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rayon-core 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon-core 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rayon"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rayon-core 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rayon-core"
-version = "1.0.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "deque 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2251,7 +2294,7 @@ dependencies = [
  "gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2324,7 +2367,7 @@ name = "rpc-cli"
 version = "1.4.0"
 dependencies = [
  "bigint 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-util 1.7.0",
+ "ethcore-util 1.7.4",
  "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-rpc 1.7.0",
  "parity-rpc-client 1.4.0",
@@ -2393,6 +2436,11 @@ name = "scoped-tls"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "scopeguard"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "secur32-sys"
 version = "0.2.0"
@@ -3075,6 +3123,7 @@ dependencies = [
 "checksum base-x 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2f59103b47307f76e03bef1633aec7fa9e29bfb5aa6daf5a334f94233c71f6c1"
 "checksum base32 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1b9605ba46d61df0410d8ac686b0007add8172eba90e8e909c347856fe794d8c"
 "checksum bigint 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d0673c930652d3d4d6dcd5c45b5db4fa5f8f33994d7323618c43c083b223e8c"
+"checksum bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5442186ef6560f30f1ee4b9c1e4c87a35a6879d3644550cc248ec2b955eb5fcd"
 "checksum bincode 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e103c8b299b28a9c6990458b7013dc4a8356a9b854c51b9883241f5866fac36e"
 "checksum bit-set 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e6e1e6fb1c9e3d6fcdec57216a74eaa03e41f52a22f13a16438251d8e88b89da"
 "checksum bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9bf6104718e80d7b26a68fdbacff3481cfc05df670821affc7e9cbc1884400c"
@@ -3094,17 +3143,18 @@ dependencies = [
 "checksum clap 2.24.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6b8f69e518f967224e628896b54e41ff6acfb4dcfefc5076325c36525dac900f"
 "checksum clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "5b4fabf979ddf6419a313c1c0ada4a5b95cfd2049c56e8418d622d27b4b6ff32"
 "checksum clippy_lints 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "ce96ec05bfe018a0d5d43da115e54850ea2217981ff0f2e462780ab9d594651a"
+"checksum coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c06169f5beb7e31c7c67ebf5540b8b472d23e3eade3b2ec7d1f5b504a85f91bd"
 "checksum conv 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "78ff10625fd0ac447827aa30ea8b861fead473bb60aeb73af6c1c58caf0d1299"
 "checksum cookie 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d53b80dde876f47f03cda35303e368a79b91c70b0d65ecba5fd5280944a08591"
 "checksum core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "20a6d0448d3a99d977ae4a2aa5a98d886a923e863e81ad9ff814645b6feb3bbd"
 "checksum core-foundation-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "05eed248dc504a5391c63794fe4fb64f46f071280afaa1b73308f3c0ce4574c5"
 "checksum crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "0c5ea215664ca264da8a9d9c3be80d2eaf30923c259d03e870388eb927508f97"
+"checksum crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a2f4a431c5c9f662e1200b7c7f02c34e91361150e382089a8f2dec3ba680cbda"
 "checksum crypt32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e34988f7e069e0b2f3bfc064295161e489b2d4e04a2e4248fb94360cdf00b4ec"
 "checksum ctrlc 1.1.1 (git+https://github.com/paritytech/rust-ctrlc.git)" = "<none>"
 "checksum custom_derive 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "ef8ae57c4978a2acd8b869ce6b9ca1dfe817bff704c220209fdef2c0b75a01b9"
 "checksum daemonize 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "271ec51b7e0bee92f0d04601422c73eb76ececf197026711c97ad25038a010cf"
 "checksum dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "97590ba53bcb8ac28279161ca943a924d1fd4a8fb3fa63302591647c4fc5b850"
-"checksum deque 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1614659040e711785ed8ea24219140654da1729f3ec8a47a9719d041112fe7bf"
 "checksum difference 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b3304d19798a8e067e48d8e69b2c37f0b5e9b4e462504ad9e27e9f3fce02bba8"
 "checksum docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3b5b93718f8b3e5544fcc914c43de828ca6c6ace23e0332c6080a2977b49787a"
 "checksum dtoa 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5edd69c67b2f8e0911629b7e6b8a34cb3956613cd7c6e6414966dee349c2db4f"
@@ -3119,7 +3169,7 @@ dependencies = [
 "checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
 "checksum foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e4056b9bd47f8ac5ba12be771f77a0dae796d1bbaaf5fd0b9c2d38b69b8a29d"
 "checksum futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8e51e7f9c150ba7fd4cee9df8bf6ea3dea5b63b68955ddad19ccd35b71dcfb4d"
-"checksum futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "bb982bb25cd8fa5da6a8eb3a460354c984ff1113da82bcb4f0b0862b5795db82"
+"checksum futures-cpupool 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a283c84501e92cade5ea673a2a7ca44f71f209ccdd302a3e0896f50083d2c5ff"
 "checksum gcc 0.3.51 (registry+https://github.com/rust-lang/crates.io-index)" = "120d07f202dcc3f72859422563522b66fe6463a4c513df062874daad05f85f0a"
 "checksum gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0912515a8ff24ba900422ecda800b52f4016a56251922d397c576bf92c690518"
 "checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
@@ -3200,7 +3250,7 @@ dependencies = [
 "checksum owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "cdf84f41639e037b484f93433aa3897863b561ed65c6e59c7073d7c561710f37"
 "checksum parity-dapps-glue 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1d06f6ee0fda786df3784a96ee3f0629f529b91cbfb7d142f6410e6bcd1ce2c"
 "checksum parity-tokio-ipc 0.1.5 (git+https://github.com/nikvolf/parity-tokio-ipc)" = "<none>"
-"checksum parity-ui-precompiled 1.4.0 (git+https://github.com/paritytech/js-precompiled.git)" = "<none>"
+"checksum parity-ui-precompiled 1.4.0 (git+https://github.com/paritytech/js-precompiled.git?branch=beta)" = "<none>"
 "checksum parity-wasm 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "51104c8b8da5cd0ebe0ab765dfab37bc1927b4a01a3d870b0fe09d9ee65e35ea"
 "checksum parity-wordlist 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "52142d717754f7ff7ef0fc8da1bdce4f302dd576fb9bf8b727d6a5fdef33348d"
 "checksum parking_lot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aebb68eebde2c99f89592d925288600fde220177e46b5c9a91ca218d245aeedf"
@@ -3225,8 +3275,9 @@ dependencies = [
 "checksum quine-mc_cluskey 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a6683b0e23d80813b1a535841f0048c1537d3f86d63c999e8373b39a9b0eb74a"
 "checksum quote 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)" = "6732e32663c9c271bfc7c1823486b471f18c47a2dbf87c066897b7b51afc83be"
 "checksum rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2791d88c6defac799c3f20d74f094ca33b9332612d9aef9078519c82e4fe04a5"
-"checksum rayon 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8c83adcb08e5b922e804fe1918142b422602ef11f2fd670b0b52218cb5984a20"
-"checksum rayon-core 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "767d91bacddf07d442fe39257bf04fd95897d1c47c545d009f6beb03efd038f8"
+"checksum rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a77c51c07654ddd93f6cb543c7a849863b03abc7e82591afda6dc8ad4ac3ac4a"
+"checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
+"checksum rayon-core 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7febc28567082c345f10cddc3612c6ea020fc3297a1977d472cf9fdb73e6e493"
 "checksum regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4278c17d0f6d62dfef0ab00028feb45bd7d2102843f80763474eeb1be8a10c01"
 "checksum regex-syntax 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "841591b1e05609a643e3b4d0045fce04f701daba7151ddcd3ad47b080693d5a9"
 "checksum regex-syntax 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9191b1f57603095f105d317e375d19b1c9c5c3185ea9633a99a6dcbed04457"
@@ -3245,6 +3296,7 @@ dependencies = [
 "checksum rustc_version 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1e114e275f7c9b5d50bb52b28f9aac1921209f02aa6077c8b255e21eefaf8ffa"
 "checksum schannel 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "4e45ac5e9e4698c1c138d2972bedcd90b81fe1efeba805449d2bdd54512de5f9"
 "checksum scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f417c22df063e9450888a7561788e9bd46d3bb3c1466435b4eccb903807f147d"
+"checksum scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c79eb2c3ac4bc2507cda80e7f3ac5b88bd8eae4c0914d5663e6a8933994be918"
 "checksum secur32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3f412dfa83308d893101dd59c10d6fda8283465976c28c287c5c855bf8d216bc"
 "checksum security-framework 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "42ddf098d78d0b64564b23ee6345d07573e7d10e52ad86875d89ddf5f8378a02"
 "checksum security-framework-sys 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "5bacdada57ea62022500c457c8571c17dfb5e6240b7c8eac5916ffa8c7138a55"

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 description = "Parity Ethereum client"
 name = "parity"
-version = "1.7.0"
+version = "1.7.4"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"
@@ -42,6 +42,7 @@ ethcore-light = { path = "ethcore/light" }
 ethcore-logger = { path = "logger" }
 ethcore-stratum = { path = "stratum" }
 ethkey = { path = "ethkey" }
+node-health = { path = "dapps/node-health" }
 rlp = { path = "util/rlp" }
 rpc-cli = { path = "rpc_cli" }
 parity-hash-fetch = { path = "hash-fetch" }
@@ -106,4 +107,4 @@ lto = false
 panic = "abort"
 
 [workspace]
-members = ["ethstore/cli", "ethkey/cli", "evmbin"]
+members = ["ethstore/cli", "ethkey/cli", "evmbin", "dapps/node-health"]

README.md

@@ -1,59 +1,47 @@
-# [Parity](https://parity.io/parity.html)
-### Fast, light, and robust Ethereum implementation
+# [Parity](https://parity.io/parity.html) - fast, light, and robust Ethereum client
 
-### [Download latest release](https://github.com/paritytech/parity/releases)
+[![build status](https://gitlab.parity.io/parity/parity/badges/master/build.svg)](https://gitlab.parity.io/parity/parity/commits/master)
+[![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)
 
-[![build status](https://gitlab.parity.io/parity/parity/badges/master/build.svg)](https://gitlab.parity.io/parity/parity/commits/master) [![Coverage Status][coveralls-image]][coveralls-url]  [![GPLv3][license-image]][license-url]
+- [Download the latest release here.](https://github.com/paritytech/parity/releases)
 
 ### Join the chat!
 
-Parity [![Join the chat at https://gitter.im/ethcore/parity][gitter-image]][gitter-url] and
-parity.js [![Join the chat at https://gitter.im/ethcore/parity.js](https://badges.gitter.im/ethcore/parity.js.svg)](https://gitter.im/ethcore/parity.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
-[Internal Documentation][doc-url]
-
-
-Be sure to check out [our wiki][wiki-url] for more information.
-
-[coveralls-image]: https://coveralls.io/repos/github/paritytech/parity/badge.svg?branch=master
-[coveralls-url]: https://coveralls.io/github/paritytech/parity?branch=master
-[gitter-image]: https://badges.gitter.im/Join%20Chat.svg
-[gitter-url]: https://gitter.im/ethcore/parity?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
-[license-image]: https://img.shields.io/badge/license-GPL%20v3-green.svg
-[license-url]: https://www.gnu.org/licenses/gpl-3.0.en.html
-[doc-url]: https://paritytech.github.io/parity/ethcore/index.html
-[wiki-url]: https://github.com/paritytech/parity/wiki
+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)
 
+Be sure to check out [our wiki](https://github.com/paritytech/parity/wiki) and the [internal documentation](https://paritytech.github.io/parity/ethcore/index.html) for more information.
 
 ----
 
-
 ## About Parity
 
-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'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 comes with a built-in wallet. To access [Parity Wallet](http://web3.site/) simply go to http://web3.site/ (if you don't have access to the internet, but still want to use the service, you can also use http://127.0.0.1:8180/). It includes various functionality allowing you to:
 
-Parity comes with a built-in wallet. To access [Parity Wallet](http://web3.site/) simply go to http://web3.site/ (if you don't have access to the internet, but still want to use the service, you can also use http://127.0.0.1:8180/). It
-includes various functionality allowing you to:
 - create and manage your Ethereum accounts;
 - manage your Ether and any Ethereum tokens;
 - create and register your own tokens;
 - and much more.
 
-By default, Parity will also run a JSONRPC server on `127.0.0.1:8545`. This is fully configurable and supports a number
-of RPC APIs.
+By default, Parity will also run a JSONRPC server on `127.0.0.1:8545`. This is fully configurable and supports a number of RPC APIs.
 
-If you run into an issue while using parity, feel free to file one in this repository
-or hop on our [gitter chat room][gitter-url] to ask a question. We are glad to help!
+If you run into an issue while using parity, feel free to file one in this repository or hop on our [gitter chat room](https://gitter.im/paritytech/parity) to ask a question. We are glad to help!
 
-Parity's current release is 1.6. You can download it at https://github.com/paritytech/parity/releases or follow the instructions
-below to build from source.
+**For security-critical issues**, please refer to the security policy outlined in `SECURITY.MD`.
+
+Parity's current beta-release is 1.7. 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 1.18.0 to build**
+**Parity 1.7.x-beta requires Rust version 1.19.0 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:
 

SECURITY.md

@@ -0,0 +1,54 @@
+# Security Policy
+
+For security inquiries or vulnerability reports, please send a message to security@parity.io.
+
+Please use a descriptive subject line so we can identify the report as such.
+
+If you send a report, we will respond to the e-mail within 48 hours, and provide regular updates from that time onwards.
+
+If you would like to encrypt your report, please use the PGP key provided below.
+It is also reproduced [on MIT's key server](https://pgp.mit.edu/pks/lookup?op=get&search=0x5D0F03018D07DE73)
+
+```
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=K9Qw
+-----END PGP PUBLIC KEY BLOCK-----
+```
+
+Important Legal Information:
+
+Your submission might be eligible for a bug bounty. The bug bounty program is an experimental and discretionary rewards program for the Parity community to reward those who are helping to improve the Parity software. Rewards are at the sole discretion of Parity Technologies Ltd.. 
+
+We are not able to issue rewards to individuals who are on sanctions lists or who are in countries on sanctions lists (e.g. North Korea, Iran, etc). 
+
+You are responsible for all taxes. All rewards are subject to applicable law. 
+
+Finally, your testing must not violate any law or compromise any data that is not yours.

dapps/Cargo.toml

@@ -9,15 +9,12 @@ authors = ["Parity Technologies <admin@parity.io>"]
 
 [dependencies]
 base32 = "0.3"
-env_logger = "0.4"
 futures = "0.1"
-futures-cpupool = "0.1"
 linked-hash-map = "0.3"
 log = "0.3"
 parity-dapps-glue = "1.7"
 mime = "0.2"
 mime_guess = "1.6.1"
-ntp = "0.2.0"
 rand = "0.3"
 rustc-hex = "1.0"
 serde = "1.0"
@@ -31,15 +28,19 @@ zip = { version = "0.1", default-features = false }
 jsonrpc-core = { git = "https://github.com/paritytech/jsonrpc.git", branch = "parity-1.7" }
 jsonrpc-http-server = { git = "https://github.com/paritytech/jsonrpc.git", branch = "parity-1.7" }
 
-ethcore-devtools = { path = "../devtools" }
 ethcore-util = { path = "../util" }
 fetch = { path = "../util/fetch" }
+node-health = { path = "./node-health" }
 parity-hash-fetch = { path = "../hash-fetch" }
 parity-reactor = { path = "../util/reactor" }
 parity-ui = { path = "./ui" }
 
 clippy = { version = "0.0.103", optional = true}
 
+[dev-dependencies]
+env_logger = "0.4"
+ethcore-devtools = { path = "../devtools" }
+
 [features]
 dev = ["clippy", "ethcore-util/dev"]
 

dapps/node-health/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "node-health"
+description = "Node's health status"
+version = "0.1.0"
+license = "GPL-3.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+
+[dependencies]
+futures = "0.1"
+futures-cpupool = "0.1"
+log = "0.3"
+ntp = "0.2.0"
+parking_lot = "0.4"
+serde = "1.0"
+serde_derive = "1.0"
+time = "0.1.35"
+
+parity-reactor = { path = "../../util/reactor" }

dapps/node-health/src/health.rs

@@ -0,0 +1,122 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Reporting node's health.
+
+use std::sync::Arc;
+use std::time;
+use futures::{Future, BoxFuture};
+use futures::sync::oneshot;
+use types::{HealthInfo, HealthStatus, Health};
+use time::{TimeChecker, MAX_DRIFT};
+use parity_reactor::Remote;
+use parking_lot::Mutex;
+use {SyncStatus};
+
+const TIMEOUT_SECS: u64 = 5;
+const PROOF: &str = "Only one closure is invoked.";
+
+/// A struct enabling you to query for node's health.
+#[derive(Debug, Clone)]
+pub struct NodeHealth {
+	sync_status: Arc<SyncStatus>,
+	time: TimeChecker,
+	remote: Remote,
+}
+
+impl NodeHealth {
+	/// Creates new `NodeHealth`.
+	pub fn new(sync_status: Arc<SyncStatus>, time: TimeChecker, remote: Remote) -> Self {
+		NodeHealth { sync_status, time, remote, }
+	}
+
+	/// Query latest health report.
+	pub fn health(&self) -> BoxFuture<Health, ()> {
+		trace!(target: "dapps", "Checking node health.");
+		// Check timediff
+		let sync_status = self.sync_status.clone();
+		let time = self.time.time_drift();
+		let (tx, rx) = oneshot::channel();
+		let tx = Arc::new(Mutex::new(Some(tx)));
+		let tx2 = tx.clone();
+		self.remote.spawn_with_timeout(
+			move || time.then(move |result| {
+				let _ = tx.lock().take().expect(PROOF).send(Ok(result));
+				Ok(())
+			}),
+			time::Duration::from_secs(TIMEOUT_SECS),
+			move || {
+				let _ = tx2.lock().take().expect(PROOF).send(Err(()));
+			},
+		);
+
+		rx.map_err(|err| {
+			warn!(target: "dapps", "Health request cancelled: {:?}", err);
+		}).and_then(move |time| {
+			// Check peers
+			let peers = {
+				let (connected, max) = sync_status.peers();
+				let (status, message) = match connected {
+					0 => {
+						(HealthStatus::Bad, "You are not connected to any peers. There is most likely some network issue. Fix connectivity.".into())
+					},
+					1 => (HealthStatus::NeedsAttention, "You are connected to only one peer. Your node might not be reliable. Check your network connection.".into()),
+					_ => (HealthStatus::Ok, "".into()),
+				};
+				HealthInfo { status, message, details: (connected, max) }
+			};
+
+			// Check sync
+			let sync = {
+				let is_syncing = sync_status.is_major_importing();
+				let (status, message) = if is_syncing {
+					(HealthStatus::NeedsAttention, "Your node is still syncing, the values you see might be outdated. Wait until it's fully synced.".into())
+				} else {
+					(HealthStatus::Ok, "".into())
+				};
+				HealthInfo { status, message, details: is_syncing }
+			};
+
+			// Check time
+			let time = {
+				let (status, message, details) = match time {
+					Ok(Ok(diff)) if diff < MAX_DRIFT && diff > -MAX_DRIFT => {
+						(HealthStatus::Ok, "".into(), diff)
+					},
+					Ok(Ok(diff)) => {
+						(HealthStatus::Bad, format!(
+							"Your clock is not in sync. Detected difference is too big for the protocol to work: {}ms. Synchronize your clock.",
+							diff,
+						), diff)
+					},
+					Ok(Err(err)) => {
+						(HealthStatus::NeedsAttention, format!(
+							"Unable to reach time API: {}. Make sure that your clock is synchronized.",
+							err,
+						), 0)
+					},
+					Err(_) => {
+						(HealthStatus::NeedsAttention, "Time API request timed out. Make sure that the clock is synchronized.".into(), 0)
+					},
+				};
+
+				HealthInfo { status, message, details, }
+			};
+
+			Ok(Health { peers, sync, time})
+		}).boxed()
+	}
+}

dapps/node-health/src/lib.rs

@@ -0,0 +1,49 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Node Health status reporting.
+
+#![warn(missing_docs)]
+
+extern crate futures;
+extern crate futures_cpupool;
+extern crate ntp;
+extern crate time as time_crate;
+extern crate parity_reactor;
+extern crate parking_lot;
+
+#[macro_use]
+extern crate log;
+#[macro_use]
+extern crate serde_derive;
+
+mod health;
+mod time;
+mod types;
+
+pub use futures_cpupool::CpuPool;
+pub use health::NodeHealth;
+pub use types::{Health, HealthInfo, HealthStatus};
+pub use time::{TimeChecker, Error};
+
+/// Indicates sync status
+pub trait SyncStatus: ::std::fmt::Debug + Send + Sync {
+	/// Returns true if there is a major sync happening.
+	fn is_major_importing(&self) -> bool;
+
+	/// Returns number of connected and ideal peers.
+	fn peers(&self) -> (usize, usize);
+}

dapps/node-health/src/time.rs

@@ -33,17 +33,22 @@
 
 use std::io;
 use std::{fmt, mem, time};
+use std::sync::Arc;
+use std::sync::atomic::{self, AtomicUsize};
 
 use std::collections::VecDeque;
 use futures::{self, Future, BoxFuture};
-use futures_cpupool::CpuPool;
+use futures::future::{self, IntoFuture};
+use futures_cpupool::{CpuPool, CpuFuture};
 use ntp;
-use time::{Duration, Timespec};
-use util::{Arc, RwLock};
+use parking_lot::RwLock;
+use time_crate::{Duration, Timespec};
 
 /// Time checker error.
 #[derive(Debug, Clone, PartialEq)]
 pub enum Error {
+	/// No servers are currently available for a query.
+	NoServersAvailable,
 	/// There was an error when trying to reach the NTP server.
 	Ntp(String),
 	/// IO error when reading NTP response.
@@ -55,6 +60,7 @@ impl fmt::Display for Error {
 		use self::Error::*;
 
 		match *self {
+			NoServersAvailable => write!(fmt, "No NTP servers available"),
 			Ntp(ref err) => write!(fmt, "NTP error: {}", err),
 			Io(ref err) => write!(fmt, "Connection Error: {}", err),
 		}
@@ -71,52 +77,123 @@ impl From<ntp::errors::Error> for Error {
 
 /// NTP time drift checker.
 pub trait Ntp {
+	/// Returned Future.
+	type Future: IntoFuture<Item=Duration, Error=Error>;
+
 	/// Returns the current time drift.
-	fn drift(&self) -> BoxFuture<Duration, Error>;
+	fn drift(&self) -> Self::Future;
+}
+
+const SERVER_MAX_POLL_INTERVAL_SECS: u64 = 60;
+#[derive(Debug)]
+struct Server {
+	pub address: String,
+	next_call: RwLock<time::Instant>,
+	failures: AtomicUsize,
+}
+
+impl Server {
+	pub fn is_available(&self) -> bool {
+		*self.next_call.read() < time::Instant::now()
+	}
+
+	pub fn report_success(&self) {
+		self.failures.store(0, atomic::Ordering::SeqCst);
+		self.update_next_call(1)
+	}
+
+	pub fn report_failure(&self) {
+		let errors = self.failures.fetch_add(1, atomic::Ordering::SeqCst);
+		self.update_next_call(1 << errors)
+	}
+
+	fn update_next_call(&self, delay: usize) {
+		*self.next_call.write() = time::Instant::now() + time::Duration::from_secs(delay as u64 * SERVER_MAX_POLL_INTERVAL_SECS);
+	}
+}
+
+impl<T: AsRef<str>> From<T> for Server {
+	fn from(t: T) -> Self {
+		Server {
+			address: t.as_ref().to_owned(),
+			next_call: RwLock::new(time::Instant::now()),
+			failures: Default::default(),
+		}
+	}
 }
 
 /// NTP client using the SNTP algorithm for calculating drift.
 #[derive(Clone)]
 pub struct SimpleNtp {
-	address: Arc<String>,
+	addresses: Vec<Arc<Server>>,
 	pool: CpuPool,
 }
 
 impl fmt::Debug for SimpleNtp {
 	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-		write!(f, "Ntp {{ address: {} }}", self.address)
+		f
+			.debug_struct("SimpleNtp")
+			.field("addresses", &self.addresses)
+			.finish()
 	}
 }
 
 impl SimpleNtp {
-	fn new(address: &str, pool: CpuPool) -> SimpleNtp {
+	fn new<T: AsRef<str>>(addresses: &[T], pool: CpuPool) -> SimpleNtp {
 		SimpleNtp {
-			address: Arc::new(address.to_owned()),
+			addresses: addresses.iter().map(Server::from).map(Arc::new).collect(),
 			pool: pool,
 		}
 	}
 }
 
 impl Ntp for SimpleNtp {
-	fn drift(&self) -> BoxFuture<Duration, Error> {
-		let address = self.address.clone();
-		self.pool.spawn_fn(move || {
-			let packet = ntp::request(&*address)?;
-			let dest_time = ::time::now_utc().to_timespec();
-			let orig_time = Timespec::from(packet.orig_time);
-			let recv_time = Timespec::from(packet.recv_time);
-			let transmit_time = Timespec::from(packet.transmit_time);
+	type Future = future::Either<
+		CpuFuture<Duration, Error>,
+		future::FutureResult<Duration, Error>,
+	>;
 
-			let drift = ((recv_time - orig_time) + (transmit_time - dest_time)) / 2;
+	fn drift(&self) -> Self::Future {
+		use self::future::Either::{A, B};
 
-			Ok(drift)
-		}).boxed()
+		let server = self.addresses.iter().find(|server| server.is_available());
+		server.map(|server| {
+			let server = server.clone();
+			A(self.pool.spawn_fn(move || {
+				debug!(target: "dapps", "Fetching time from {}.", server.address);
+
+				match ntp::request(&server.address) {
+					Ok(packet) => {
+						let dest_time = ::time_crate::now_utc().to_timespec();
+						let orig_time = Timespec::from(packet.orig_time);
+						let recv_time = Timespec::from(packet.recv_time);
+						let transmit_time = Timespec::from(packet.transmit_time);
+
+						let drift = ((recv_time - orig_time) + (transmit_time - dest_time)) / 2;
+
+						server.report_success();
+						Ok(drift)
+					},
+					Err(err) => {
+						server.report_failure();
+						Err(err.into())
+					},
+				}
+			}))
+		}).unwrap_or_else(|| B(future::err(Error::NoServersAvailable)))
 	}
 }
 
+// NOTE In a positive scenario first results will be seen after:
+// MAX_RESULTS * UPDATE_TIMEOUT_INCOMPLETE_SECS seconds.
 const MAX_RESULTS: usize = 4;
-const UPDATE_TIMEOUT_OK_SECS: u64 = 30;
-const UPDATE_TIMEOUT_ERR_SECS: u64 = 2;
+const UPDATE_TIMEOUT_OK_SECS: u64 = 6 * 60 * 60;
+const UPDATE_TIMEOUT_WARN_SECS: u64 = 15 * 60;
+const UPDATE_TIMEOUT_ERR_SECS: u64 = 60;
+const UPDATE_TIMEOUT_INCOMPLETE_SECS: u64 = 10;
+
+/// Maximal valid time drift.
+pub const MAX_DRIFT: i64 = 500;
 
 #[derive(Debug, Clone)]
 /// A time checker.
@@ -127,13 +204,13 @@ pub struct TimeChecker<N: Ntp = SimpleNtp> {
 
 impl TimeChecker<SimpleNtp> {
 	/// Creates new time checker given the NTP server address.
-	pub fn new(ntp_address: String, pool: CpuPool) -> Self {
+	pub fn new<T: AsRef<str>>(ntp_addresses: &[T], pool: CpuPool) -> Self {
 		let last_result = Arc::new(RwLock::new(
 			// Assume everything is ok at the very beginning.
 			(time::Instant::now(), vec![Ok(0)].into())
 		));
 
-		let ntp = SimpleNtp::new(&ntp_address, pool);
+		let ntp = SimpleNtp::new(ntp_addresses, pool);
 
 		TimeChecker {
 			ntp,
@@ -142,22 +219,34 @@ impl TimeChecker<SimpleNtp> {
 	}
 }
 
-impl<N: Ntp> TimeChecker<N> {
+impl<N: Ntp> TimeChecker<N> where <N::Future as IntoFuture>::Future: Send + 'static {
 	/// Updates the time
 	pub fn update(&self) -> BoxFuture<i64, Error> {
+		trace!(target: "dapps", "Updating time from NTP.");
 		let last_result = self.last_result.clone();
-		self.ntp.drift().then(move |res| {
+		self.ntp.drift().into_future().then(move |res| {
+			let res = res.map(|d| d.num_milliseconds());
+
+			if let Err(Error::NoServersAvailable) = res {
+				debug!(target: "dapps", "No NTP servers available. Selecting an older result.");
+				return select_result(last_result.read().1.iter());
+			}
+
+			// Update the results.
 			let mut results = mem::replace(&mut last_result.write().1, VecDeque::new());
+			let has_all_results = results.len() >= MAX_RESULTS;
 			let valid_till = time::Instant::now() + time::Duration::from_secs(
-				if res.is_ok() && results.len() == MAX_RESULTS {
-					UPDATE_TIMEOUT_OK_SECS
-				} else {
-					UPDATE_TIMEOUT_ERR_SECS
+				match res {
+					Ok(time) if has_all_results && time < MAX_DRIFT => UPDATE_TIMEOUT_OK_SECS,
+					Ok(_) if has_all_results => UPDATE_TIMEOUT_WARN_SECS,
+					Err(_) if has_all_results => UPDATE_TIMEOUT_ERR_SECS,
+					_ => UPDATE_TIMEOUT_INCOMPLETE_SECS,
 				}
 			);
 
+			trace!(target: "dapps", "New time drift received: {:?}", res);
 			// Push the result.
-			results.push_back(res.map(|d| d.num_milliseconds()));
+			results.push_back(res);
 			while results.len() > MAX_RESULTS {
 				results.pop_front();
 			}
@@ -202,9 +291,9 @@ mod tests {
 	use std::cell::{Cell, RefCell};
 	use std::time::Instant;
 	use time::Duration;
-	use futures::{self, BoxFuture, Future};
+	use futures::{future, Future};
 	use super::{Ntp, TimeChecker, Error};
-	use util::RwLock;
+	use parking_lot::RwLock;
 
 	#[derive(Clone)]
 	struct FakeNtp(RefCell<Vec<Duration>>, Cell<u64>);
@@ -217,15 +306,17 @@ mod tests {
 	}
 
 	impl Ntp for FakeNtp {
-		fn drift(&self) -> BoxFuture<Duration, Error> {
+		type Future = future::FutureResult<Duration, Error>;
+
+		fn drift(&self) -> Self::Future {
 			self.1.set(self.1.get() + 1);
-			futures::future::ok(self.0.borrow_mut().pop().expect("Unexpected call to drift().")).boxed()
+			future::ok(self.0.borrow_mut().pop().expect("Unexpected call to drift()."))
 		}
 	}
 
 	fn time_checker() -> TimeChecker<FakeNtp> {
 		let last_result = Arc::new(RwLock::new(
-			(Instant::now(), vec![Err(Error::Ntp("NTP server unavailable.".into()))].into())
+			(Instant::now(), vec![Err(Error::Ntp("NTP server unavailable".into()))].into())
 		));
 
 		TimeChecker {

dapps/node-health/src/types.rs

@@ -0,0 +1,57 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Base health types.
+
+/// Health API endpoint status.
+#[derive(Debug, PartialEq, Serialize)]
+pub enum HealthStatus {
+	/// Everything's OK.
+	#[serde(rename = "ok")]
+	Ok,
+	/// Node health need attention
+	/// (the issue is not critical, but may need investigation)
+	#[serde(rename = "needsAttention")]
+	NeedsAttention,
+	/// There is something bad detected with the node.
+	#[serde(rename = "bad")]
+	Bad,
+}
+
+/// Represents a single check in node health.
+/// Cointains the status of that check and apropriate message and details.
+#[derive(Debug, PartialEq, Serialize)]
+#[serde(deny_unknown_fields)]
+pub struct HealthInfo<T> {
+	/// Check status.
+	pub status: HealthStatus,
+	/// Human-readable message.
+	pub message: String,
+	/// Technical details of the check.
+	pub details: T,
+}
+
+/// Node Health status.
+#[derive(Debug, PartialEq, Serialize)]
+#[serde(deny_unknown_fields)]
+pub struct Health {
+	/// Status of peers.
+	pub peers: HealthInfo<(usize, usize)>,
+	/// Sync status.
+	pub sync: HealthInfo<bool>,
+	/// Time diff info.
+	pub time: HealthInfo<i64>,
+}

dapps/src/api/api.rs

@@ -21,32 +21,28 @@ use hyper::method::Method;
 use hyper::status::StatusCode;
 
 use api::{response, types};
-use api::time::TimeChecker;
 use apps::fetcher::Fetcher;
 use handlers::{self, extract_url};
 use endpoint::{Endpoint, Handler, EndpointPath};
+use node_health::{NodeHealth, HealthStatus, Health};
 use parity_reactor::Remote;
-use {SyncStatus};
 
 #[derive(Clone)]
 pub struct RestApi {
 	fetcher: Arc<Fetcher>,
-	sync_status: Arc<SyncStatus>,
-	time: TimeChecker,
+	health: NodeHealth,
 	remote: Remote,
 }
 
 impl RestApi {
 	pub fn new(
 		fetcher: Arc<Fetcher>,
-		sync_status: Arc<SyncStatus>,
-		time: TimeChecker,
+		health: NodeHealth,
 		remote: Remote,
 	) -> Box<Endpoint> {
 		Box::new(RestApi {
 			fetcher,
-			sync_status,
-			time,
+			health,
 			remote,
 		})
 	}
@@ -90,75 +86,23 @@ impl RestApiRouter {
 	}
 
 	fn health(&self, control: Control) -> Box<Handler> {
-		use self::types::{HealthInfo, HealthStatus, Health};
-
-		trace!(target: "dapps", "Checking node health.");
-		// Check timediff
-		let sync_status = self.api.sync_status.clone();
-		let map = move |time| {
-			// Check peers
-			let peers = {
-				let (connected, max) = sync_status.peers();
-				let (status, message) = match connected {
-					0 => {
-						(HealthStatus::Bad, "You are not connected to any peers. There is most likely some network issue. Fix connectivity.".into())
-					},
-					1 => (HealthStatus::NeedsAttention, "You are connected to only one peer. Your node might not be reliable. Check your network connection.".into()),
-					_ => (HealthStatus::Ok, "".into()),
-				};
-				HealthInfo { status, message, details: (connected, max) }
+		let map = move |health: Result<Result<Health, ()>, ()>| {
+			let status = match health {
+				Ok(Ok(ref health)) => {
+					if [&health.peers.status, &health.sync.status].iter().any(|x| *x != &HealthStatus::Ok) {
+						StatusCode::PreconditionFailed // HTTP 412
+					} else {
+						StatusCode::Ok // HTTP 200
+					}
+				},
+				_ => StatusCode::ServiceUnavailable, // HTTP 503
 			};
 
-			// Check sync
-			let sync = {
-				let is_syncing = sync_status.is_major_importing();
-				let (status, message) = if is_syncing {
-					(HealthStatus::NeedsAttention, "Your node is still syncing, the values you see might be outdated. Wait until it's fully synced.".into())
-				} else {
-					(HealthStatus::Ok, "".into())
-				};
-				HealthInfo { status, message, details: is_syncing }
-			};
-
-			// Check time
-			let time = {
-				const MAX_DRIFT: i64 = 500;
-				let (status, message, details) = match time {
-					Ok(Ok(diff)) if diff < MAX_DRIFT && diff > -MAX_DRIFT => {
-						(HealthStatus::Ok, "".into(), diff)
-					},
-					Ok(Ok(diff)) => {
-						(HealthStatus::Bad, format!(
-							"Your clock is not in sync. Detected difference is too big for the protocol to work: {}ms. Synchronize your clock.",
-							diff,
-						), diff)
-					},
-					Ok(Err(err)) => {
-						(HealthStatus::NeedsAttention, format!(
-							"Unable to reach time API: {}. Make sure that your clock is synchronized.",
-							err,
-						), 0)
-					},
-					Err(_) => {
-						(HealthStatus::NeedsAttention, "Time API request timed out. Make sure that the clock is synchronized.".into(), 0)
-					},
-				};
-
-				HealthInfo { status, message, details, }
-			};
-
-			let status = if [&peers.status, &sync.status, &time.status].iter().any(|x| *x != &HealthStatus::Ok) {
-				StatusCode::PreconditionFailed // HTTP 412
-			} else {
-				StatusCode::Ok // HTTP 200
-			};
-
-			response::as_json(status, &Health { peers, sync, time })
+			response::as_json(status, &health)
 		};
-
-		let time = self.api.time.time_drift();
+		let health = self.api.health.health();
 		let remote = self.api.remote.clone();
-		Box::new(handlers::AsyncHandler::new(time, map, remote, control))
+		Box::new(handlers::AsyncHandler::new(health, map, remote, control))
 	}
 }
 

dapps/src/api/mod.rs

@@ -18,8 +18,6 @@
 
 mod api;
 mod response;
-mod time;
 mod types;
 
 pub use self::api::RestApi;
-pub use self::time::TimeChecker;

dapps/src/api/types.rs

@@ -25,43 +25,3 @@ pub struct ApiError {
 	/// More technical error details.
 	pub detail: String,
 }
-
-/// Health API endpoint status.
-#[derive(Debug, PartialEq, Serialize)]
-pub enum HealthStatus {
-	/// Everything's OK.
-	#[serde(rename = "ok")]
-	Ok,
-	/// Node health need attention
-	/// (the issue is not critical, but may need investigation)
-	#[serde(rename = "needsAttention")]
-	NeedsAttention,
-	/// There is something bad detected with the node.
-	#[serde(rename = "bad")]
-	Bad
-}
-
-/// Represents a single check in node health.
-/// Cointains the status of that check and apropriate message and details.
-#[derive(Debug, PartialEq, Serialize)]
-#[serde(deny_unknown_fields)]
-pub struct HealthInfo<T> {
-	/// Check status.
-	pub status: HealthStatus,
-	/// Human-readable message.
-	pub message: String,
-	/// Technical details of the check.
-	pub details: T,
-}
-
-/// Node Health status.
-#[derive(Debug, PartialEq, Serialize)]
-#[serde(deny_unknown_fields)]
-pub struct Health {
-	/// Status of peers.
-	pub peers: HealthInfo<(usize, usize)>,
-	/// Sync status.
-	pub sync: HealthInfo<bool>,
-	/// Time diff info.
-	pub time: HealthInfo<i64>,
-}

dapps/src/apps/fetcher/mod.rs

@@ -281,6 +281,7 @@ mod tests {
 		}
 	}
 
+	#[derive(Debug)]
 	struct FakeSync(bool);
 	impl SyncStatus for FakeSync {
 		fn is_major_importing(&self) -> bool { self.0 }

dapps/src/handlers/mod.rs

@@ -67,7 +67,20 @@ pub fn add_security_headers(headers: &mut header::Headers, embeddable_on: Embedd
 		// Allow fonts from data: and HTTPS.
 		b"font-src 'self' data: https:;".to_vec(),
 		// Allow inline scripts and scripts eval (webpack/jsconsole)
-		b"script-src 'self' 'unsafe-inline' 'unsafe-eval';".to_vec(),
+		{
+			let script_src = embeddable_on.as_ref()
+				.map(|e| e.extra_script_src.iter()
+					 .map(|&(ref host, port)| address(host, port))
+					 .join(" ")
+				).unwrap_or_default();
+			format!(
+				"script-src 'self' 'unsafe-inline' 'unsafe-eval' {};",
+				script_src
+			).into_bytes()
+		},
+		// Same restrictions as script-src with additional
+		// blob: that is required for camera access (worker)
+		b"worker-src 'self' 'unsafe-inline' 'unsafe-eval' https: blob:;".to_vec(),
 		// Restrict everything else to the same origin.
 		b"default-src 'self';".to_vec(),
 		// Run in sandbox mode (although it's not fully safe since we allow same-origin and script)
@@ -87,7 +100,7 @@ pub fn add_security_headers(headers: &mut header::Headers, embeddable_on: Embedd
 					.into_iter()
 					.chain(embed.extra_embed_on
 						.iter()
-						.map(|&(ref host, port)| format!("{}:{}", host, port))
+						.map(|&(ref host, port)| address(host, port))
 					);
 
 				let ancestors = if embed.host == "127.0.0.1" {
@@ -140,4 +153,3 @@ pub fn convert_uri_to_url(uri: &uri::RequestUri, host: Option<&header::Host>) ->
 		_ => None,
 	}
 }
-

dapps/src/lib.rs

@@ -21,10 +21,8 @@
 
 extern crate base32;
 extern crate futures;
-extern crate futures_cpupool;
 extern crate linked_hash_map;
 extern crate mime_guess;
-extern crate ntp;
 extern crate rand;
 extern crate rustc_hex;
 extern crate serde;
@@ -39,6 +37,7 @@ extern crate jsonrpc_http_server;
 
 extern crate ethcore_util as util;
 extern crate fetch;
+extern crate node_health;
 extern crate parity_dapps_glue as parity_dapps;
 extern crate parity_hash_fetch as hash_fetch;
 extern crate parity_reactor;
@@ -56,7 +55,6 @@ extern crate ethcore_devtools as devtools;
 #[cfg(test)]
 extern crate env_logger;
 
-
 mod endpoint;
 mod apps;
 mod page;
@@ -76,19 +74,12 @@ use std::collections::HashMap;
 use jsonrpc_http_server::{self as http, hyper, Origin};
 
 use fetch::Fetch;
-use futures_cpupool::CpuPool;
+use node_health::NodeHealth;
 use parity_reactor::Remote;
 
 pub use hash_fetch::urlhint::ContractClient;
+pub use node_health::SyncStatus;
 
-/// Indicates sync status
-pub trait SyncStatus: Send + Sync {
-	/// Returns true if there is a major sync happening.
-	fn is_major_importing(&self) -> bool;
-
-	/// Returns number of connected and ideal peers.
-	fn peers(&self) -> (usize, usize);
-}
 
 /// Validates Web Proxy tokens
 pub trait WebProxyTokens: Send + Sync {
@@ -130,8 +121,7 @@ impl Middleware {
 
 	/// Creates new middleware for UI server.
 	pub fn ui<F: Fetch>(
-		ntp_server: &str,
-		pool: CpuPool,
+		health: NodeHealth,
 		remote: Remote,
 		dapps_domain: &str,
 		registrar: Arc<ContractClient>,
@@ -146,11 +136,9 @@ impl Middleware {
 		).embeddable_on(None).allow_dapps(false));
 		let special = {
 			let mut special = special_endpoints(
-				ntp_server,
-				pool,
+				health,
 				content_fetcher.clone(),
 				remote.clone(),
-				sync_status.clone(),
 			);
 			special.insert(router::SpecialEndpoint::Home, Some(apps::ui()));
 			special
@@ -171,11 +159,11 @@ impl Middleware {
 
 	/// Creates new Dapps server middleware.
 	pub fn dapps<F: Fetch>(
-		ntp_server: &str,
-		pool: CpuPool,
+		health: NodeHealth,
 		remote: Remote,
 		ui_address: Option<(String, u16)>,
 		extra_embed_on: Vec<(String, u16)>,
+		extra_script_src: Vec<(String, u16)>,
 		dapps_path: PathBuf,
 		extra_dapps: Vec<PathBuf>,
 		dapps_domain: &str,
@@ -184,7 +172,7 @@ impl Middleware {
 		web_proxy_tokens: Arc<WebProxyTokens>,
 		fetch: F,
 	) -> Self {
-		let embeddable = as_embeddable(ui_address, extra_embed_on, dapps_domain);
+		let embeddable = as_embeddable(ui_address, extra_embed_on, extra_script_src, dapps_domain);
 		let content_fetcher = Arc::new(apps::fetcher::ContentFetcher::new(
 			hash_fetch::urlhint::URLHintContract::new(registrar),
 			sync_status.clone(),
@@ -203,11 +191,9 @@ impl Middleware {
 
 		let special = {
 			let mut special = special_endpoints(
-				ntp_server,
-				pool,
+				health,
 				content_fetcher.clone(),
 				remote.clone(),
-				sync_status,
 			);
 			special.insert(
 				router::SpecialEndpoint::Home,
@@ -238,19 +224,16 @@ impl http::RequestMiddleware for Middleware {
 }
 
 fn special_endpoints(
-	ntp_server: &str,
-	pool: CpuPool,
+	health: NodeHealth,
 	content_fetcher: Arc<apps::fetcher::Fetcher>,
 	remote: Remote,
-	sync_status: Arc<SyncStatus>,
 ) -> HashMap<router::SpecialEndpoint, Option<Box<endpoint::Endpoint>>> {
 	let mut special = HashMap::new();
 	special.insert(router::SpecialEndpoint::Rpc, None);
 	special.insert(router::SpecialEndpoint::Utils, Some(apps::utils()));
 	special.insert(router::SpecialEndpoint::Api, Some(api::RestApi::new(
 		content_fetcher,
-		sync_status,
-		api::TimeChecker::new(ntp_server.into(), pool),
+		health,
 		remote,
 	)));
 	special
@@ -263,12 +246,14 @@ fn address(host: &str, port: u16) -> String {
 fn as_embeddable(
 	ui_address: Option<(String, u16)>,
 	extra_embed_on: Vec<(String, u16)>,
+	extra_script_src: Vec<(String, u16)>,
 	dapps_domain: &str,
 ) -> Option<ParentFrameSettings> {
 	ui_address.map(|(host, port)| ParentFrameSettings {
 		host,
 		port,
 		extra_embed_on,
+		extra_script_src,
 		dapps_domain: dapps_domain.to_owned(),
 	})
 }
@@ -289,8 +274,10 @@ pub struct ParentFrameSettings {
 	pub host: String,
 	/// Port
 	pub port: u16,
-	/// Additional pages the pages can be embedded on.
+	/// Additional URLs the dapps can be embedded on.
 	pub extra_embed_on: Vec<(String, u16)>,
+	/// Additional URLs the dapp scripts can be loaded from.
+	pub extra_script_src: Vec<(String, u16)>,
 	/// Dapps Domain (web3.site)
 	pub dapps_domain: String,
 }

dapps/src/tests/helpers/mod.rs

@@ -26,7 +26,7 @@ use jsonrpc_http_server::{self as http, Host, DomainsValidation};
 use devtools::http_client;
 use hash_fetch::urlhint::ContractClient;
 use fetch::{Fetch, Client as FetchClient};
-use futures_cpupool::CpuPool;
+use node_health::{NodeHealth, TimeChecker, CpuPool};
 use parity_reactor::Remote;
 
 use {Middleware, SyncStatus, WebProxyTokens};
@@ -39,6 +39,7 @@ use self::fetch::FakeFetch;
 
 const SIGNER_PORT: u16 = 18180;
 
+#[derive(Debug)]
 struct FakeSync(bool);
 impl SyncStatus for FakeSync {
 	fn is_major_importing(&self) -> bool { self.0 }
@@ -254,12 +255,17 @@ impl Server {
 		remote: Remote,
 		fetch: F,
 	) -> Result<Server, http::Error> {
+		let health = NodeHealth::new(
+			sync_status.clone(),
+			TimeChecker::new::<String>(&[], CpuPool::new(1)),
+			remote.clone(),
+		);
 		let middleware = Middleware::dapps(
-			"pool.ntp.org:123",
-			CpuPool::new(4),
+			health,
 			remote,
 			signer_address,
 			vec![],
+			vec![],
 			dapps_path,
 			extra_dapps,
 			DAPPS_DOMAIN.into(),

dapps/ui/Cargo.toml

@@ -12,7 +12,7 @@ rustc_version = "0.1"
 [dependencies]
 parity-ui-dev = { path = "../../js", optional = true }
 # This is managed by the js/scripts/release.sh script on CI - keep it in a single line
-parity-ui-precompiled = { git = "https://github.com/paritytech/js-precompiled.git", optional = true, branch = "master" }
+parity-ui-precompiled = { git = "https://github.com/paritytech/js-precompiled.git", optional = true, branch = "beta" }
 
 [features]
 no-precompiled-js = ["parity-ui-dev"]

docker/hub/Dockerfile

@@ -4,7 +4,7 @@ WORKDIR /build
 #ENV for build TAG
 ARG BUILD_TAG
 ENV BUILD_TAG ${BUILD_TAG:-master}
-RUN echo $BUILD_TAG
+RUN echo "Build tag:" $BUILD_TAG
 # install tools and dependencies
 RUN apt-get update && \
         apt-get install -y --force-yes --no-install-recommends \
@@ -48,7 +48,7 @@ RUN apt-get update && \
 # show backtraces
  RUST_BACKTRACE=1 && \
 # build parity
- cd /build&&git clone https://github.com/paritytech/parity && \
+cd /build&&git clone https://github.com/paritytech/parity && \
         cd parity && \
 	git pull&& \
 	git checkout $BUILD_TAG && \

ethcore/Cargo.toml

@@ -44,6 +44,7 @@ lru-cache = "0.1.0"
 native-contracts = { path = "native_contracts" }
 num = "0.1"
 num_cpus = "1.2"
+rayon = "0.8"
 rand = "0.3"
 rlp = { path = "../util/rlp" }
 rust-crypto = "0.2.34"

ethcore/benches/evm.rs

@@ -0,0 +1,97 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+#![feature(test)]
+
+extern crate test;
+extern crate ethcore_util as util;
+extern crate rand;
+extern crate bn;
+extern crate crypto;
+extern crate rustc_serialize;
+extern crate ethkey;
+
+use self::test::{Bencher};
+use rand::{StdRng};
+
+
+#[bench]
+fn bn_128_pairing(b: &mut Bencher) {
+	use bn::{pairing, G1, G2, Fr, Group};
+
+	let rng = &mut ::rand::thread_rng();
+
+	let sk0 = Fr::random(rng);
+	let sk1 = Fr::random(rng);
+
+	let pk0 = G1::one() * sk0;
+	let pk1 = G2::one() * sk1;
+
+	b.iter(|| {
+		let _ = pairing(pk0, pk1);
+	});
+}
+
+#[bench]
+fn bn_128_mul(b: &mut Bencher) {
+	use bn::{AffineG1, G1, Fr, Group};
+
+	let mut rng = StdRng::new().unwrap();
+	let p: G1 = G1::random(&mut rng);
+	let fr = Fr::random(&mut rng);
+
+	b.iter(|| {
+		let _ = AffineG1::from_jacobian(p * fr);
+	});
+}
+
+#[bench]
+fn sha256(b: &mut Bencher) {
+	use crypto::sha2::Sha256;
+	use crypto::digest::Digest;
+
+	let mut input: [u8; 256] = [0; 256];
+	let mut out = [0; 32];
+
+	b.iter(|| {
+		let mut sha = Sha256::new();
+		sha.input(&input);
+		sha.result(&mut input[0..32]);
+	});
+}
+
+#[bench]
+fn ecrecover(b: &mut Bencher) {
+	use rustc_serialize::hex::FromHex;
+	use ethkey::{Signature, recover as ec_recover};
+	use util::H256;
+	let input = FromHex::from_hex("47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad000000000000000000000000000000000000000000000000000000000000001b650acf9d3f5f0a2c799776a1254355d5f4061762a237396a99a0e0e3fc2bcd6729514a0dacb2e623ac4abd157cb18163ff942280db4d5caad66ddf941ba12e03").unwrap();
+	let hash = H256::from_slice(&input[0..32]);
+	let v = H256::from_slice(&input[32..64]);
+	let r = H256::from_slice(&input[64..96]);
+	let s = H256::from_slice(&input[96..128]);
+
+	let bit = match v[31] {
+		27 | 28 if &v.0[..31] == &[0; 31] => v[31] - 27,
+		_ => { return; },
+	};
+
+	let s = Signature::from_rsv(&r, &s, bit);
+	b.iter(|| {
+		let _ = ec_recover(&s, &hash);
+	});
+}
+

ethcore/evm/src/evm.rs

@@ -69,6 +69,10 @@ pub enum Error {
 	Internal(String),
 	/// Wasm runtime error
 	Wasm(String),
+	/// Out of bounds access in RETURNDATACOPY.
+	OutOfBounds,
+	/// Execution has been reverted with REVERT.
+	Reverted,
 }
 
 impl From<Box<trie::TrieError>> for Error {
@@ -96,6 +100,8 @@ impl fmt::Display for Error {
 			Internal(ref msg) => write!(f, "Internal error: {}", msg),
 			MutableCallInStaticContext => write!(f, "Mutable call in static context"),
 			Wasm(ref msg) => write!(f, "Internal error: {}", msg),
+			OutOfBounds => write!(f, "Out of bounds"),
+			Reverted => write!(f, "Reverted"),
 		}
 	}
 }
@@ -179,7 +185,7 @@ impl Finalize for Result<GasLeft> {
 	fn finalize<E: Ext>(self, ext: E) -> Result<FinalizationResult> {
 		match self {
 			Ok(GasLeft::Known(gas_left)) => Ok(FinalizationResult { gas_left: gas_left, apply_state: true, return_data: ReturnData::empty() }),
-			Ok(GasLeft::NeedsReturn {gas_left, data, apply_state}) => ext.ret(&gas_left, &data).map(|gas_left| FinalizationResult {
+			Ok(GasLeft::NeedsReturn {gas_left, data, apply_state}) => ext.ret(&gas_left, &data, apply_state).map(|gas_left| FinalizationResult {
 				gas_left: gas_left,
 				apply_state: apply_state,
 				return_data: data,

ethcore/evm/src/ext.rs

@@ -29,7 +29,12 @@ pub enum ContractCreateResult {
 	Created(Address, U256),
 	/// Returned when contract creation failed.
 	/// VM doesn't have to know the reason.
-	Failed
+	Failed,
+	/// Returned when contract creation failed.
+	/// VM doesn't have to know the reason.
+	FailedInStaticCall,
+	/// Reverted with REVERT.
+	Reverted(U256, ReturnData),
 }
 
 /// Result of externalities call function.
@@ -39,7 +44,10 @@ pub enum MessageCallResult {
 	Success(U256, ReturnData),
 	/// Returned when message call failed.
 	/// VM doesn't have to know the reason.
-	Failed
+	Failed,
+	/// Returned when message call was reverted.
+	/// Contains gas left and output data.
+	Reverted(U256, ReturnData),
 }
 
 /// Specifies how an address is calculated for a new contract.
@@ -109,7 +117,7 @@ pub trait Ext {
 
 	/// Should be called when transaction calls `RETURN` opcode.
 	/// Returns gas_left if cost of returning the data is not too high.
-	fn ret(self, gas: &U256, data: &ReturnData) -> evm::Result<U256>;
+	fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> evm::Result<U256>;
 
 	/// Should be called when contract commits suicide.
 	/// Address to which funds should be refunded.
@@ -138,4 +146,7 @@ pub trait Ext {
 
 	/// Trace the finalised execution of a single instruction.
 	fn trace_executed(&mut self, _gas_used: U256, _stack_push: &[U256], _mem_diff: Option<(usize, &[u8])>, _store_diff: Option<(U256, U256)>) {}
+
+	/// Check if running in static context.
+	fn is_static(&self) -> bool;
 }

ethcore/evm/src/interpreter/memory.rs

@@ -44,7 +44,7 @@ pub trait Memory {
 }
 
 /// Checks whether offset and size is valid memory range
-fn is_valid_range(off: usize, size: usize)  -> bool {
+pub fn is_valid_range(off: usize, size: usize)  -> bool {
 	// When size is zero we haven't actually expanded the memory
 	let overflow = off.overflowing_add(size).1;
 	size > 0 && !overflow

ethcore/evm/src/interpreter/mod.rs

@@ -162,7 +162,12 @@ impl<Cost: CostType> evm::Evm for Interpreter<Cost> {
 			}
 
 			if do_trace {
-				ext.trace_executed(gasometer.current_gas.as_u256(), stack.peek_top(info.ret), mem_written.map(|(o, s)| (o, &(self.mem[o..(o + s)]))), store_written);
+				ext.trace_executed(
+					gasometer.current_gas.as_u256(),
+					stack.peek_top(info.ret),
+					mem_written.map(|(o, s)| (o, &(self.mem[o..o+s]))),
+					store_written,
+				);
 			}
 
 			// Advance
@@ -211,6 +216,7 @@ impl<Cost: CostType> Interpreter<Cost> {
 		if (instruction == instructions::DELEGATECALL && !schedule.have_delegate_call) ||
 			(instruction == instructions::CREATE2 && !schedule.have_create2) ||
 			(instruction == instructions::STATICCALL && !schedule.have_static_call) ||
+			((instruction == instructions::RETURNDATACOPY || instruction == instructions::RETURNDATASIZE) && !schedule.have_return_data) ||
 			(instruction == instructions::REVERT && !schedule.have_revert) {
 
 			return Err(evm::Error::BadInstruction {
@@ -245,14 +251,20 @@ impl<Cost: CostType> Interpreter<Cost> {
 		instruction: Instruction,
 		stack: &Stack<U256>
 	) -> Option<(usize, usize)> {
-		match instruction {
-			instructions::MSTORE | instructions::MLOAD => Some((stack.peek(0).low_u64() as usize, 32)),
-			instructions::MSTORE8 => Some((stack.peek(0).low_u64() as usize, 1)),
-			instructions::CALLDATACOPY | instructions::CODECOPY | instructions::RETURNDATACOPY => Some((stack.peek(0).low_u64() as usize, stack.peek(2).low_u64() as usize)),
-			instructions::EXTCODECOPY => Some((stack.peek(1).low_u64() as usize, stack.peek(3).low_u64() as usize)),
-			instructions::CALL | instructions::CALLCODE => Some((stack.peek(5).low_u64() as usize, stack.peek(6).low_u64() as usize)),
-			instructions::DELEGATECALL => Some((stack.peek(4).low_u64() as usize, stack.peek(5).low_u64() as usize)),
+		let read = |pos| stack.peek(pos).low_u64() as usize;
+		let written = match instruction {
+			instructions::MSTORE | instructions::MLOAD => Some((read(0), 32)),
+			instructions::MSTORE8 => Some((read(0), 1)),
+			instructions::CALLDATACOPY | instructions::CODECOPY | instructions::RETURNDATACOPY => Some((read(0), read(2))),
+			instructions::EXTCODECOPY => Some((read(1), read(3))),
+			instructions::CALL | instructions::CALLCODE => Some((read(5), read(6))),
+			instructions::DELEGATECALL | instructions::STATICCALL => Some((read(4), read(5))),
 			_ => None,
+		};
+
+		match written {
+			Some((offset, size)) if !memory::is_valid_range(offset, size) => None,
+			written => written,
 		}
 	}
 
@@ -307,6 +319,9 @@ impl<Cost: CostType> Interpreter<Cost> {
 				let contract_code = self.mem.read_slice(init_off, init_size);
 				let can_create = ext.balance(&params.address)? >= endowment && ext.depth() < ext.schedule().max_depth;
 
+				// clear return data buffer before creating new call frame.
+				self.return_data = ReturnData::empty();
+
 				if !can_create {
 					stack.push(U256::zero());
 					return Ok(InstructionResult::UnusedGas(create_gas));
@@ -318,10 +333,18 @@ impl<Cost: CostType> Interpreter<Cost> {
 						stack.push(address_to_u256(address));
 						Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater.")))
 					},
+					ContractCreateResult::Reverted(gas_left, return_data) => {
+						stack.push(U256::zero());
+						self.return_data = return_data;
+						Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater.")))
+					},
 					ContractCreateResult::Failed => {
 						stack.push(U256::zero());
 						Ok(InstructionResult::Ok)
-					}
+					},
+					ContractCreateResult::FailedInStaticCall => {
+						Err(evm::Error::MutableCallInStaticContext)
+					},
 				};
 			},
 			instructions::CALL | instructions::CALLCODE | instructions::DELEGATECALL | instructions::STATICCALL => {
@@ -332,8 +355,10 @@ impl<Cost: CostType> Interpreter<Cost> {
 				let code_address = stack.pop_back();
 				let code_address = u256_to_address(&code_address);
 
-				let value = if instruction == instructions::DELEGATECALL || instruction == instructions::STATICCALL {
+				let value = if instruction == instructions::DELEGATECALL {
 					None
+				} else if instruction == instructions::STATICCALL {
+					Some(U256::zero())
 				} else {
 					Some(stack.pop_back())
 				};
@@ -352,6 +377,9 @@ impl<Cost: CostType> Interpreter<Cost> {
 				// Get sender & receive addresses, check if we have balance
 				let (sender_address, receive_address, has_balance, call_type) = match instruction {
 					instructions::CALL => {
+						if ext.is_static() && value.map_or(false, |v| !v.is_zero()) {
+							return Err(evm::Error::MutableCallInStaticContext);
+						}
 						let has_balance = ext.balance(&params.address)? >= value.expect("value set for all but delegate call; qed");
 						(&params.address, &code_address, has_balance, CallType::Call)
 					},
@@ -360,10 +388,13 @@ impl<Cost: CostType> Interpreter<Cost> {
 						(&params.address, &params.address, has_balance, CallType::CallCode)
 					},
 					instructions::DELEGATECALL => (&params.sender, &params.address, true, CallType::DelegateCall),
-					instructions::STATICCALL => (&params.sender, &params.address, true, CallType::StaticCall),
+					instructions::STATICCALL => (&params.address, &code_address, true, CallType::StaticCall),
 					_ => panic!(format!("Unexpected instruction {} in CALL branch.", instruction))
 				};
 
+				// clear return data buffer before creating new call frame.
+				self.return_data = ReturnData::empty();
+
 				let can_call = has_balance && ext.depth() < ext.schedule().max_depth;
 				if !can_call {
 					stack.push(U256::zero());
@@ -382,12 +413,17 @@ impl<Cost: CostType> Interpreter<Cost> {
 					MessageCallResult::Success(gas_left, data) => {
 						stack.push(U256::one());
 						self.return_data = data;
-						Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater then current one")))
+						Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater than current one")))
+					},
+					MessageCallResult::Reverted(gas_left, data) => {
+						stack.push(U256::zero());
+						self.return_data = data;
+						Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater than current one")))
 					},
 					MessageCallResult::Failed  => {
 						stack.push(U256::zero());
 						Ok(InstructionResult::Ok)
-					}
+					},
 				};
 			},
 			instructions::RETURN => {
@@ -525,6 +561,14 @@ impl<Cost: CostType> Interpreter<Cost> {
 				Self::copy_data_to_memory(&mut self.mem, stack, params.data.as_ref().map_or_else(|| &[] as &[u8], |d| &*d as &[u8]));
 			},
 			instructions::RETURNDATACOPY => {
+				{
+					let source_offset = stack.peek(1);
+					let size = stack.peek(2);
+					let return_data_len = U256::from(self.return_data.len());
+					if source_offset.overflow_add(*size).0 > return_data_len {
+						return Err(evm::Error::OutOfBounds);
+					}
+				}
 				Self::copy_data_to_memory(&mut self.mem, stack, &*self.return_data);
 			},
 			instructions::CODECOPY => {
@@ -855,3 +899,36 @@ fn address_to_u256(value: Address) -> U256 {
 	U256::from(&*H256::from(value))
 }
 
+
+#[cfg(test)]
+mod tests {
+	use std::sync::Arc;
+	use rustc_hex::FromHex;
+	use vmtype::VMType;
+	use factory::Factory;
+	use vm::{self, ActionParams, ActionValue};
+	use vm::tests::{FakeExt, test_finalize};
+
+	#[test]
+	fn should_not_fail_on_tracing_mem() {
+		let code = "7feeffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff006000527faaffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffaa6020526000620f120660406000601773945304eb96065b2a98b57a48a06ae28d285a71b56101f4f1600055".from_hex().unwrap();
+
+		let mut params = ActionParams::default();
+		params.address = 5.into();
+		params.gas = 300_000.into();
+		params.gas_price = 1.into();
+		params.value = ActionValue::Transfer(100_000.into());
+		params.code = Some(Arc::new(code));
+		let mut ext = FakeExt::new();
+		ext.balances.insert(5.into(), 1_000_000_000.into());
+		ext.tracing = true;
+
+		let gas_left = {
+			let mut vm = Factory::new(VMType::Interpreter, 1).create(params.gas);
+			test_finalize(vm.exec(params, &mut ext)).unwrap()
+		};
+
+		assert_eq!(ext.calls.len(), 1);
+		assert_eq!(gas_left, 248_212.into());
+	}
+}

ethcore/evm/src/schedule.rs

@@ -107,8 +107,12 @@ pub struct Schedule {
 	pub blockhash_gas: usize,
 	/// Static Call opcode enabled.
 	pub have_static_call: bool,
+	/// RETURNDATA and RETURNDATASIZE opcodes enabled.
+	pub have_return_data: bool,
 	/// Kill basic accounts below this balance if touched.
 	pub kill_dust: CleanDustMode,
+	/// Enable EIP-86 rules
+	pub eip86: bool,
 }
 
 /// Dust accounts cleanup mode.
@@ -140,6 +144,7 @@ impl Schedule {
 			have_delegate_call: true,
 			have_create2: false,
 			have_revert: false,
+			have_return_data: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -181,16 +186,17 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
+			eip86: false,
 		}
 	}
 
-	/// Schedule for the Metropolis of the Ethereum main net.
-	pub fn new_metropolis() -> Schedule {
+	/// Schedule for the Byzantium fork of the Ethereum main net.
+	pub fn new_byzantium() -> Schedule {
 		let mut schedule = Self::new_post_eip150(24576, true, true, true);
 		schedule.have_create2 = true;
 		schedule.have_revert = true;
 		schedule.have_static_call = true;
-		schedule.blockhash_gas = 350;
+		schedule.have_return_data = true;
 		schedule
 	}
 
@@ -200,6 +206,7 @@ impl Schedule {
 			have_delegate_call: hdc,
 			have_create2: false,
 			have_revert: false,
+			have_return_data: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -241,6 +248,7 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
+			eip86: false,
 		}
 	}
 }

ethcore/evm/src/wasm/runtime.rs

@@ -163,7 +163,16 @@ impl<'a> Runtime<'a> {
 			ext::ContractCreateResult::Failed => {
 				trace!(target: "wasm", "runtime: create contract fail");
 				Ok(Some((-1i32).into()))
-			}
+			},
+			ext::ContractCreateResult::Reverted(gas_left, _) => {
+				trace!(target: "wasm", "runtime: create contract reverted");
+				self.gas_counter = self.gas_limit - gas_left.low_u64();
+				Ok(Some((-1i32).into()))
+			},
+			ext::ContractCreateResult::FailedInStaticCall => {
+				trace!(target: "wasm", "runtime: create contract called in static context");
+				Err(interpreter::Error::Trap("CREATE in static context".to_owned()))
+			},
 		}
 	}
 

ethcore/light/src/client/header_chain.rs

@@ -405,6 +405,7 @@ impl HeaderChain {
 
 		match id {
 			BlockId::Earliest | BlockId::Number(0) => Some(self.genesis_header.clone()),
+			BlockId::Hash(hash) if hash == self.genesis_hash() => { Some(self.genesis_header.clone()) }
 			BlockId::Hash(hash) => load_from_db(hash),
 			BlockId::Number(num) => {
 				if self.best_block.read().number < num { return None }
@@ -781,4 +782,18 @@ mod tests {
 		assert_eq!(chain.block_header(BlockId::Latest).unwrap().number(), 10);
 		assert!(chain.candidates.read().get(&100).is_some())
 	}
+
+	#[test]
+	fn genesis_header_available() {
+		let spec = Spec::new_test();
+		let genesis_header = spec.genesis_header();
+		let db = make_db();
+		let cache = Arc::new(Mutex::new(Cache::new(Default::default(), Duration::hours(6))));
+
+		let chain = HeaderChain::new(db.clone(), None, &::rlp::encode(&genesis_header), cache.clone()).unwrap();
+
+		assert!(chain.block_header(BlockId::Earliest).is_some());
+		assert!(chain.block_header(BlockId::Number(0)).is_some());
+		assert!(chain.block_header(BlockId::Hash(genesis_header.hash())).is_some());
+	}
 }

ethcore/light/src/client/mod.rs

@@ -58,6 +58,8 @@ pub struct Config {
 	pub db_wal: bool,
 	/// Should it do full verification of blocks?
 	pub verify_full: bool,
+	/// Should it check the seal of blocks?
+	pub check_seal: bool,
 }
 
 impl Default for Config {
@@ -69,6 +71,7 @@ impl Default for Config {
 			db_compaction: CompactionProfile::default(),
 			db_wal: true,
 			verify_full: true,
+			check_seal: true,
 		}
 	}
 }
@@ -168,7 +171,7 @@ impl Client {
 		let gh = ::rlp::encode(&spec.genesis_header());
 
 		Ok(Client {
-			queue: HeaderQueue::new(config.queue, spec.engine.clone(), io_channel, true),
+			queue: HeaderQueue::new(config.queue, spec.engine.clone(), io_channel, config.check_seal),
 			engine: spec.engine.clone(),
 			chain: HeaderChain::new(db.clone(), chain_col, &gh, cache)?,
 			report: RwLock::new(ClientReport::default()),
@@ -282,6 +285,7 @@ impl Client {
 		let mut good = Vec::new();
 		for verified_header in self.queue.drain(MAX) {
 			let (num, hash) = (verified_header.number(), verified_header.hash());
+			trace!(target: "client", "importing block {}", num);
 
 			if self.verify_full && !self.check_header(&mut bad, &verified_header) {
 				continue
@@ -381,13 +385,17 @@ impl Client {
 		}
 	}
 
-	// return true if should skip, false otherwise. may push onto bad if
+	// return false if should skip, true otherwise. may push onto bad if
 	// should skip.
 	fn check_header(&self, bad: &mut Vec<H256>, verified_header: &Header) -> bool {
 		let hash = verified_header.hash();
 		let parent_header = match self.chain.block_header(BlockId::Hash(*verified_header.parent_hash())) {
 			Some(header) => header,
-			None => return false, // skip import of block with missing parent.
+			None => {
+				trace!(target: "client", "No parent for block ({}, {})",
+					verified_header.number(), hash);
+				return false // skip import of block with missing parent.
+			}
 		};
 
 		// Verify Block Family

ethcore/light/src/net/mod.rs

@@ -806,6 +806,9 @@ impl LightProtocol {
 		trace!(target: "pip", "Connected peer with chain head {:?}", (status.head_hash, status.head_num));
 
 		if (status.network_id, status.genesis_hash) != (self.network_id, self.genesis_hash) {
+			trace!(target: "pip", "peer {} wrong network: network_id is {} vs our {}, gh is {} vs our {}",
+				peer, status.network_id, self.network_id, status.genesis_hash, self.genesis_hash);
+
 			return Err(Error::WrongNetwork);
 		}
 

ethcore/light/src/on_demand/mod.rs

@@ -54,13 +54,21 @@ struct Peer {
 }
 
 impl Peer {
-	// whether this peer can fulfill the
-	fn can_fulfill(&self, c: &Capabilities) -> bool {
-		let caps = &self.capabilities;
+	// whether this peer can fulfill the necessary capabilities for the given
+	// request.
+	fn can_fulfill(&self, request: &Capabilities) -> bool {
+		let local_caps = &self.capabilities;
+		let can_serve_since = |req, local| {
+			match (req, local) {
+				(Some(request_block), Some(serve_since)) => request_block >= serve_since,
+				(Some(_), None) => false,
+				(None, _) => true,
+			}
+		};
 
-		caps.serve_headers == c.serve_headers &&
-			caps.serve_chain_since >= c.serve_chain_since &&
-			caps.serve_state_since >= c.serve_chain_since
+		local_caps.serve_headers >= request.serve_headers &&
+		    can_serve_since(request.serve_chain_since, local_caps.serve_chain_since) &&
+		    can_serve_since(request.serve_state_since, local_caps.serve_state_since)
 	}
 }
 
@@ -244,7 +252,7 @@ impl OnDemand {
 			peers: RwLock::new(HashMap::new()),
 			in_transit: RwLock::new(HashMap::new()),
 			cache: cache,
-			no_immediate_dispatch: true,
+			no_immediate_dispatch: false,
 		}
 	}
 
@@ -266,7 +274,6 @@ impl OnDemand {
 		-> Result<Receiver<Vec<Response>>, basic_request::NoSuchOutput>
 	{
 		let (sender, receiver) = oneshot::channel();
-
 		if requests.is_empty() {
 			assert!(sender.send(Vec::new()).is_ok(), "receiver still in scope; qed");
 			return Ok(receiver);
@@ -335,6 +342,7 @@ impl OnDemand {
 	// dispatch pending requests, and discard those for which the corresponding
 	// receiver has been dropped.
 	fn dispatch_pending(&self, ctx: &BasicContext) {
+
 		// wrapper future for calling `poll_cancel` on our `Senders` to preserve
 		// the invariant that it's always within a task.
 		struct CheckHangup<'a, T: 'a>(&'a mut Sender<T>);
@@ -360,6 +368,8 @@ impl OnDemand {
 		if self.pending.read().is_empty() { return }
 		let mut pending = self.pending.write();
 
+		debug!(target: "on_demand", "Attempting to dispatch {} pending requests", pending.len());
+
 		// iterate over all pending requests, and check them for hang-up.
 		// then, try and find a peer who can serve it.
 		let peers = self.peers.read();
@@ -378,16 +388,21 @@ impl OnDemand {
 
 					match ctx.request_from(*peer_id, pending.net_requests.clone()) {
 						Ok(req_id) => {
+							trace!(target: "on_demand", "Dispatched request {} to peer {}", req_id, peer_id);
 							self.in_transit.write().insert(req_id, pending);
 							return None
 						}
-						Err(net::Error::NoCredits) => {}
+						Err(net::Error::NoCredits) | Err(net::Error::NotServer) => {}
 						Err(e) => debug!(target: "on_demand", "Error dispatching request to peer: {}", e),
 					}
 				}
+
+				// TODO: maximum number of failures _when we have peers_.
 				Some(pending)
 			})
 			.collect(); // `pending` now contains all requests we couldn't dispatch.
+
+		debug!(target: "on_demand", "Was unable to dispatch {} requests.", pending.len());
 	}
 
 	// submit a pending request set. attempts to answer from cache before
@@ -395,6 +410,7 @@ impl OnDemand {
 	fn submit_pending(&self, ctx: &BasicContext, mut pending: Pending) {
 		// answer as many requests from cache as we can, and schedule for dispatch
 		// if incomplete.
+
 		pending.answer_from_cache(&*self.cache);
 		if let Some(mut pending) = pending.try_complete() {
 			pending.update_net_requests();

ethcore/light/src/on_demand/request.rs

@@ -21,7 +21,7 @@ use std::sync::Arc;
 use ethcore::basic_account::BasicAccount;
 use ethcore::encoded;
 use ethcore::engines::Engine;
-use ethcore::receipt::Receipt;
+use ethcore::receipt::{Receipt, TransactionOutcome};
 use ethcore::state::{self, ProvedExecution};
 use ethcore::transaction::SignedTransaction;
 use evm::env_info::EnvInfo;
@@ -926,7 +926,7 @@ mod tests {
 	#[test]
 	fn check_receipts() {
 		let receipts = (0..5).map(|_| Receipt {
-			state_root: Some(H256::random()),
+			outcome: TransactionOutcome::StateRoot(H256::random()),
 			gas_used: 21_000u64.into(),
 			log_bloom: Default::default(),
 			logs: Vec::new(),

ethcore/light/src/types/request/mod.rs

@@ -1859,13 +1859,15 @@ mod tests {
 
 	#[test]
 	fn receipts_roundtrip() {
+		use ethcore::receipt::{Receipt, TransactionOutcome};
 		let req = IncompleteReceiptsRequest {
 			hash: Field::Scalar(Default::default()),
 		};
 
 		let full_req = Request::Receipts(req.clone());
+		let receipt = Receipt::new(TransactionOutcome::Unknown, Default::default(), Vec::new());
 		let res = ReceiptsResponse {
-			receipts: vec![Default::default(), Default::default()],
+			receipts: vec![receipt.clone(), receipt],
 		};
 		let full_res = Response::Receipts(res.clone());
 
@@ -2020,6 +2022,7 @@ mod tests {
 
 	#[test]
 	fn responses_vec() {
+		use ethcore::receipt::{Receipt, TransactionOutcome};
 		let mut stream = RlpStream::new_list(2);
 				stream.begin_list(0).begin_list(0);
 
@@ -2027,7 +2030,7 @@ mod tests {
 		let reqs = vec![
 			Response::Headers(HeadersResponse { headers: vec![] }),
 			Response::HeaderProof(HeaderProofResponse { proof: vec![], hash: Default::default(), td: 100.into()}),
-			Response::Receipts(ReceiptsResponse { receipts: vec![Default::default()] }),
+			Response::Receipts(ReceiptsResponse { receipts: vec![Receipt::new(TransactionOutcome::Unknown, Default::default(), Vec::new())] }),
 			Response::Body(BodyResponse { body: body }),
 			Response::Account(AccountResponse {
 				proof: vec![],

ethcore/res/ethereum/byzantium_test.json

@@ -1,5 +1,5 @@
 {
-	"name": "Metropolis (Test)",
+	"name": "Byzantium (Test)",
 	"engine": {
 		"Ethash": {
 			"params": {
@@ -7,27 +7,31 @@
 				"minimumDifficulty": "0x020000",
 				"difficultyBoundDivisor": "0x0800",
 				"durationLimit": "0x0d",
-				"blockReward": "0x4563918244F40000",
-				"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
 				"homesteadTransition": "0x0",
 				"eip150Transition": "0x0",
 				"eip155Transition": "0x0",
 				"eip160Transition": "0x0",
 				"eip161abcTransition": "0x0",
 				"eip161dTransition": "0x0",
-				"maxCodeSize": 24576
+				"maxCodeSize": 24576,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"blockReward": "0x4563918244F40000",
+				"eip100bTransition": "0x0",
+				"eip649Transition": "0x0"
 			}
 		}
 	},
 	"params": {
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
 		"accountStartNonce": "0x00",
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x1",
-		"eip98Transition": "0x0",
-		"eip86Transition": "0x0",
+		"eip98Transition": "0xffffffffffffffff",
 		"eip140Transition": "0x0",
-		"eip210Transition": "0x0"
+		"eip211Transition": "0x0",
+		"eip214Transition": "0x0",
+		"eip658Transition": "0x0"
 	},
 	"genesis": {
 		"seal": {
@@ -47,6 +51,10 @@
 		"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 } } } }
+		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"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": 40000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
 	}
 }

ethcore/res/ethereum/constantinople_test.json

@@ -0,0 +1,61 @@
+{
+	"name": "Byzantium (Test)",
+	"engine": {
+		"Ethash": {
+			"params": {
+				"gasLimitBoundDivisor": "0x0400",
+				"minimumDifficulty": "0x020000",
+				"difficultyBoundDivisor": "0x0800",
+				"durationLimit": "0x0d",
+				"homesteadTransition": "0x0",
+				"eip150Transition": "0x0",
+				"eip155Transition": "0x0",
+				"eip160Transition": "0x0",
+				"eip161abcTransition": "0x0",
+				"eip161dTransition": "0x0",
+				"maxCodeSize": 24576,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"blockReward": "0x4563918244F40000",
+				"eip100bTransition": "0x0",
+				"eip649Transition": "0x0"
+			}
+		}
+	},
+	"params": {
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+		"accountStartNonce": "0x00",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x1",
+		"eip98Transition": "0xffffffffffffffff",
+		"eip140Transition": "0x0",
+		"eip210Transition": "0x0",
+		"eip211Transition": "0x0",
+		"eip214Transition": "0x0",
+		"eip658Transition": "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/foundation.json

@@ -136,7 +136,10 @@
 				"eip160Transition": 2675000,
 				"eip161abcTransition": 2675000,
 				"eip161dTransition": 2675000,
-				"maxCodeSize": 24576
+				"maxCodeSize": 24576,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"eip100bTransition": 4370000,
+				"eip649Transition": 4370000
 			}
 		}
 	},
@@ -148,7 +151,11 @@
 		"forkBlock": "0x1d4c00",
 		"forkCanonHash": "0x4985f5ca3d2afbec36529aa96f74de3cc10a2a4a6c44f2157a57d2c6059a11bb",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip86Transition": "0x7fffffffffffff",
+		"eip140Transition": 4370000,
+		"eip211Transition": 4370000,
+		"eip214Transition": 4370000,
+		"eip658Transition": 4370000
 	},
 	"genesis": {
 		"seal": {
@@ -190,10 +197,10 @@
 		"0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
 		"0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
 		"0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x7fffffffffffff", "pricing": { "modexp": { "divisor": 20 } } } },
-		"0000000000000000000000000000000000000006": { "builtin": { "name": "bn128_add", "activate_at": "0x7fffffffffffff", "pricing": { "linear": { "base": 999999, "word": 0 } } } },
-		"0000000000000000000000000000000000000007": { "builtin": { "name": "bn128_mul", "activate_at": "0x7fffffffffffff", "pricing": { "linear": { "base": 999999, "word": 0 } } } },
-		"0000000000000000000000000000000000000008": { "builtin": { "name": "bn128_pairing", "activate_at": "0x7fffffffffffff", "pricing": { "linear": { "base": 999999, "word": 0 } } } },
+		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": 4370000, "pricing": { "modexp": { "divisor": 20 } } } },
+		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": 4370000, "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": 4370000, "pricing": { "linear": { "base": 40000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": 4370000, "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } },
 		"3282791d6fd713f1e94f4bfd565eaa78b3a0599d": {
 			"balance": "1337000000000000000000"
 		},

ethcore/res/ethereum/ropsten.json

@@ -16,7 +16,10 @@
 				"eip160Transition": 10,
 				"eip161abcTransition": 10,
 				"eip161dTransition": 10,
-				"maxCodeSize": 24576
+				"maxCodeSize": 24576,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"eip100bTransition": 1700000,
+				"eip649Transition": 1700000
 			}
 		}
 	},
@@ -28,7 +31,11 @@
 		"forkBlock": 641350,
 		"forkCanonHash": "0x8033403e9fe5811a7b6d6b469905915de1c59207ce2172cbcf5d6ff14fa6a2eb",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip86Transition": "0x7fffffffffffff",
+		"eip140Transition": 1700000,
+		"eip211Transition": 1700000,
+		"eip214Transition": 1700000,
+		"eip658Transition": 1700000
 	},
 	"genesis": {
 		"seal": {
@@ -49,15 +56,15 @@
 		"enode://6ce05930c72abc632c58e2e4324f7c7ea478cec0ed4fa2528982cf34483094e9cbc9216e7aa349691242576d552a2a56aaeae426c5303ded677ce455ba1acd9d@13.84.180.240:30303"
 	],
 	"accounts": {
+		"0000000000000000000000000000000000000000": { "balance": "1" },
 		"0000000000000000000000000000000000000001": { "balance": "1", "nonce": "0", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
 		"0000000000000000000000000000000000000002": { "balance": "1", "nonce": "0", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
 		"0000000000000000000000000000000000000003": { "balance": "1", "nonce": "0", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
 		"0000000000000000000000000000000000000004": { "balance": "1", "nonce": "0", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-		"0000000000000000000000000000000000000000": { "balance": "1" },
-		"0000000000000000000000000000000000000005": { "balance": "1" },
-		"0000000000000000000000000000000000000006": { "balance": "1" },
-		"0000000000000000000000000000000000000007": { "balance": "1" },
-		"0000000000000000000000000000000000000008": { "balance": "1" },
+		"0000000000000000000000000000000000000005": { "balance": "1", "nonce": "0", "builtin": { "name": "modexp", "activate_at": 1700000, "pricing": { "modexp": { "divisor": 20 } } } },
+		"0000000000000000000000000000000000000006": { "balance": "1", "nonce": "0", "builtin": { "name": "alt_bn128_add", "activate_at": 1700000, "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "balance": "1", "nonce": "0", "builtin": { "name": "alt_bn128_mul", "activate_at": 1700000, "pricing": { "linear": { "base": 40000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "balance": "1", "nonce": "0", "builtin": { "name": "alt_bn128_pairing", "activate_at": 1700000, "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } },
 		"0000000000000000000000000000000000000009": { "balance": "1" },
 		"000000000000000000000000000000000000000a": { "balance": "0" },
 		"000000000000000000000000000000000000000b": { "balance": "0" },

ethcore/res/ethereum/tests

@@ -1 +1 @@
-Subproject commit 4e8b9be3fba16ec32e0cdf50b8f9329826283aaa
+Subproject commit 9b722a014a2b2c9ea6eac456fe01a5c3dd1042a8

ethcore/res/ethereum/transition_test.json

@@ -1,5 +1,5 @@
 {
-	"name": "EIP150.1b hard-fork consensus test",
+	"name": "Transition consensus test spec template",
 	"engine": {
 		"Ethash": {
 			"params": {
@@ -9,132 +9,16 @@
 				"durationLimit": "0x0d",
 				"blockReward": "0x4563918244F40000",
 				"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
-				"homesteadTransition": "0x5",
-				"daoHardforkTransition": "0x8",
-				"daoHardforkBeneficiary": "0xbf4ed7b27f1d666546e30d74d50d173d20bca754",
-				"daoHardforkAccounts": [
-					"0xd4fe7bc31cedb7bfb8a345f31e668033056b2728",
-					"0xb3fb0e5aba0e20e5c49d252dfd30e102b171a425",
-					"0x2c19c7f9ae8b751e37aeb2d93a699722395ae18f",
-					"0xecd135fa4f61a655311e86238c92adcd779555d2",
-					"0x1975bd06d486162d5dc297798dfc41edd5d160a7",
-					"0xa3acf3a1e16b1d7c315e23510fdd7847b48234f6",
-					"0x319f70bab6845585f412ec7724b744fec6095c85",
-					"0x06706dd3f2c9abf0a21ddcc6941d9b86f0596936",
-					"0x5c8536898fbb74fc7445814902fd08422eac56d0",
-					"0x6966ab0d485353095148a2155858910e0965b6f9",
-					"0x779543a0491a837ca36ce8c635d6154e3c4911a6",
-					"0x2a5ed960395e2a49b1c758cef4aa15213cfd874c",
-					"0x5c6e67ccd5849c0d29219c4f95f1a7a93b3f5dc5",
-					"0x9c50426be05db97f5d64fc54bf89eff947f0a321",
-					"0x200450f06520bdd6c527622a273333384d870efb",
-					"0xbe8539bfe837b67d1282b2b1d61c3f723966f049",
-					"0x6b0c4d41ba9ab8d8cfb5d379c69a612f2ced8ecb",
-					"0xf1385fb24aad0cd7432824085e42aff90886fef5",
-					"0xd1ac8b1ef1b69ff51d1d401a476e7e612414f091",
-					"0x8163e7fb499e90f8544ea62bbf80d21cd26d9efd",
-					"0x51e0ddd9998364a2eb38588679f0d2c42653e4a6",
-					"0x627a0a960c079c21c34f7612d5d230e01b4ad4c7",
-					"0xf0b1aa0eb660754448a7937c022e30aa692fe0c5",
-					"0x24c4d950dfd4dd1902bbed3508144a54542bba94",
-					"0x9f27daea7aca0aa0446220b98d028715e3bc803d",
-					"0xa5dc5acd6a7968a4554d89d65e59b7fd3bff0f90",
-					"0xd9aef3a1e38a39c16b31d1ace71bca8ef58d315b",
-					"0x63ed5a272de2f6d968408b4acb9024f4cc208ebf",
-					"0x6f6704e5a10332af6672e50b3d9754dc460dfa4d",
-					"0x77ca7b50b6cd7e2f3fa008e24ab793fd56cb15f6",
-					"0x492ea3bb0f3315521c31f273e565b868fc090f17",
-					"0x0ff30d6de14a8224aa97b78aea5388d1c51c1f00",
-					"0x9ea779f907f0b315b364b0cfc39a0fde5b02a416",
-					"0xceaeb481747ca6c540a000c1f3641f8cef161fa7",
-					"0xcc34673c6c40e791051898567a1222daf90be287",
-					"0x579a80d909f346fbfb1189493f521d7f48d52238",
-					"0xe308bd1ac5fda103967359b2712dd89deffb7973",
-					"0x4cb31628079fb14e4bc3cd5e30c2f7489b00960c",
-					"0xac1ecab32727358dba8962a0f3b261731aad9723",
-					"0x4fd6ace747f06ece9c49699c7cabc62d02211f75",
-					"0x440c59b325d2997a134c2c7c60a8c61611212bad",
-					"0x4486a3d68fac6967006d7a517b889fd3f98c102b",
-					"0x9c15b54878ba618f494b38f0ae7443db6af648ba",
-					"0x27b137a85656544b1ccb5a0f2e561a5703c6a68f",
-					"0x21c7fdb9ed8d291d79ffd82eb2c4356ec0d81241",
-					"0x23b75c2f6791eef49c69684db4c6c1f93bf49a50",
-					"0x1ca6abd14d30affe533b24d7a21bff4c2d5e1f3b",
-					"0xb9637156d330c0d605a791f1c31ba5890582fe1c",
-					"0x6131c42fa982e56929107413a9d526fd99405560",
-					"0x1591fc0f688c81fbeb17f5426a162a7024d430c2",
-					"0x542a9515200d14b68e934e9830d91645a980dd7a",
-					"0xc4bbd073882dd2add2424cf47d35213405b01324",
-					"0x782495b7b3355efb2833d56ecb34dc22ad7dfcc4",
-					"0x58b95c9a9d5d26825e70a82b6adb139d3fd829eb",
-					"0x3ba4d81db016dc2890c81f3acec2454bff5aada5",
-					"0xb52042c8ca3f8aa246fa79c3feaa3d959347c0ab",
-					"0xe4ae1efdfc53b73893af49113d8694a057b9c0d1",
-					"0x3c02a7bc0391e86d91b7d144e61c2c01a25a79c5",
-					"0x0737a6b837f97f46ebade41b9bc3e1c509c85c53",
-					"0x97f43a37f595ab5dd318fb46e7a155eae057317a",
-					"0x52c5317c848ba20c7504cb2c8052abd1fde29d03",
-					"0x4863226780fe7c0356454236d3b1c8792785748d",
-					"0x5d2b2e6fcbe3b11d26b525e085ff818dae332479",
-					"0x5f9f3392e9f62f63b8eac0beb55541fc8627f42c",
-					"0x057b56736d32b86616a10f619859c6cd6f59092a",
-					"0x9aa008f65de0b923a2a4f02012ad034a5e2e2192",
-					"0x304a554a310c7e546dfe434669c62820b7d83490",
-					"0x914d1b8b43e92723e64fd0a06f5bdb8dd9b10c79",
-					"0x4deb0033bb26bc534b197e61d19e0733e5679784",
-					"0x07f5c1e1bc2c93e0402f23341973a0e043f7bf8a",
-					"0x35a051a0010aba705c9008d7a7eff6fb88f6ea7b",
-					"0x4fa802324e929786dbda3b8820dc7834e9134a2a",
-					"0x9da397b9e80755301a3b32173283a91c0ef6c87e",
-					"0x8d9edb3054ce5c5774a420ac37ebae0ac02343c6",
-					"0x0101f3be8ebb4bbd39a2e3b9a3639d4259832fd9",
-					"0x5dc28b15dffed94048d73806ce4b7a4612a1d48f",
-					"0xbcf899e6c7d9d5a215ab1e3444c86806fa854c76",
-					"0x12e626b0eebfe86a56d633b9864e389b45dcb260",
-					"0xa2f1ccba9395d7fcb155bba8bc92db9bafaeade7",
-					"0xec8e57756626fdc07c63ad2eafbd28d08e7b0ca5",
-					"0xd164b088bd9108b60d0ca3751da4bceb207b0782",
-					"0x6231b6d0d5e77fe001c2a460bd9584fee60d409b",
-					"0x1cba23d343a983e9b5cfd19496b9a9701ada385f",
-					"0xa82f360a8d3455c5c41366975bde739c37bfeb8a",
-					"0x9fcd2deaff372a39cc679d5c5e4de7bafb0b1339",
-					"0x005f5cee7a43331d5a3d3eec71305925a62f34b6",
-					"0x0e0da70933f4c7849fc0d203f5d1d43b9ae4532d",
-					"0xd131637d5275fd1a68a3200f4ad25c71a2a9522e",
-					"0xbc07118b9ac290e4622f5e77a0853539789effbe",
-					"0x47e7aa56d6bdf3f36be34619660de61275420af8",
-					"0xacd87e28b0c9d1254e868b81cba4cc20d9a32225",
-					"0xadf80daec7ba8dcf15392f1ac611fff65d94f880",
-					"0x5524c55fb03cf21f549444ccbecb664d0acad706",
-					"0x40b803a9abce16f50f36a77ba41180eb90023925",
-					"0xfe24cdd8648121a43a7c86d289be4dd2951ed49f",
-					"0x17802f43a0137c506ba92291391a8a8f207f487d",
-					"0x253488078a4edf4d6f42f113d1e62836a942cf1a",
-					"0x86af3e9626fce1957c82e88cbf04ddf3a2ed7915",
-					"0xb136707642a4ea12fb4bae820f03d2562ebff487",
-					"0xdbe9b615a3ae8709af8b93336ce9b477e4ac0940",
-					"0xf14c14075d6c4ed84b86798af0956deef67365b5",
-					"0xca544e5c4687d109611d0f8f928b53a25af72448",
-					"0xaeeb8ff27288bdabc0fa5ebb731b6f409507516c",
-					"0xcbb9d3703e651b0d496cdefb8b92c25aeb2171f7",
-					"0x6d87578288b6cb5549d5076a207456a1f6a63dc0",
-					"0xb2c6f0dfbb716ac562e2d85d6cb2f8d5ee87603e",
-					"0xaccc230e8a6e5be9160b8cdf2864dd2a001c28b6",
-					"0x2b3455ec7fedf16e646268bf88846bd7a2319bb2",
-					"0x4613f3bca5c44ea06337a9e439fbc6d42e501d0a",
-					"0xd343b217de44030afaa275f54d31a9317c7f441e",
-					"0x84ef4b2357079cd7a7c69fd7a37cd0609a679106",
-					"0xda2fef9e4a3230988ff17df2165440f37e8b1708",
-					"0xf4c64518ea10f995918a454158c6b61407ea345c",
-					"0x7602b46df5390e432ef1c307d4f2c9ff6d65cc97",
-					"0xbb9bc244d798123fde783fcc1c72d3bb8c189413",
-					"0x807640a13483f8ac783c557fcdf27be11ea4ac7a"
-				],
-				"eip150Transition": "0xa",
-				"eip155Transition": "0x7fffffffffffffff",
-				"eip160Transition": "0x7fffffffffffffff",
-				"eip161abcTransition": "0x7fffffffffffffff",
-				"eip161dTransition": "0x7fffffffffffffff"
+				"eip155Transition": "5",
+				"homesteadTransition": "0",
+				"eip150Transition": "0",
+				"eip160Transition": "0",
+				"eip161abcTransition": "0",
+				"eip161dTransition": "0",
+				"maxCodeSize": 24576,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"eip100bTransition": "5",
+				"eip649Transition": "5"
 			}
 		}
 	},
@@ -143,8 +27,12 @@
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x1",
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0xffffffffffffffff",
+		"eip140Transition": "5",
+		"eip211Transition": "5",
+		"eip214Transition": "5",
+		"eip155Transition": "5",
+		"eip658Transition": "5"
 	},
 	"genesis": {
 		"seal": {
@@ -161,9 +49,13 @@
 		"gasLimit": "0x1388"
 	},
 	"accounts": {
-		"0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
-		"0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
-		"0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
-		"0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } }
+		"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": "5", "pricing": { "modexp": { "divisor": 100 } } } },
+		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "5", "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "5", "pricing": { "linear": { "base": 2000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "5", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
 	}
 }

ethcore/src/account_provider/mod.rs

@@ -168,9 +168,9 @@ impl AccountProvider {
 	pub fn new(sstore: Box<SecretStore>, settings: AccountProviderSettings) -> Self {
 		let mut hardware_store = None;
 		if settings.enable_hardware_wallets {
-			match HardwareWalletManager::new() {
+			let key_path = if settings.hardware_wallet_classic_key { KeyPath::EthereumClassic } else { KeyPath::Ethereum };
+			match HardwareWalletManager::new(key_path) {
 				Ok(manager) => {
-					manager.set_key_path(if settings.hardware_wallet_classic_key { KeyPath::EthereumClassic } else { KeyPath::Ethereum });
 					hardware_store = Some(manager)
 				},
 				Err(e) => debug!("Error initializing hardware wallets: {}", e),

ethcore/src/block.rs

@@ -30,7 +30,7 @@ use engines::Engine;
 use error::{Error, BlockError, TransactionError};
 use factory::Factories;
 use header::Header;
-use receipt::Receipt;
+use receipt::{Receipt, TransactionOutcome};
 use state::State;
 use state_db::StateDB;
 use trace::FlatTrace;
@@ -524,7 +524,7 @@ impl LockedBlock {
 	pub fn strip_receipts(self) -> LockedBlock {
 		let mut block = self;
 		for receipt in &mut block.block.receipts {
-			receipt.state_root = None;
+			receipt.outcome = TransactionOutcome::Unknown;
 		}
 		block.block.header.set_receipts_root(ordered_trie_root(block.block.receipts.iter().map(|r| r.rlp_bytes().into_vec())));
 		block

ethcore/src/blockchain/blockchain.rs

@@ -36,6 +36,7 @@ use db::{self, Writable, Readable, CacheUpdatePolicy};
 use cache_manager::CacheManager;
 use encoded;
 use engines::epoch::{Transition as EpochTransition, PendingTransition as PendingEpochTransition};
+use rayon::prelude::*;
 
 const LOG_BLOOMS_LEVELS: usize = 3;
 const LOG_BLOOMS_ELEMENTS_PER_INDEX: usize = 16;
@@ -143,7 +144,7 @@ pub trait BlockProvider {
 
 	/// Returns logs matching given filter.
 	fn logs<F>(&self, blocks: Vec<BlockNumber>, matches: F, limit: Option<usize>) -> Vec<LocalizedLogEntry>
-		where F: Fn(&LogEntry) -> bool, Self: Sized;
+		where F: Fn(&LogEntry) -> bool + Send + Sync, Self: Sized;
 }
 
 macro_rules! otry {
@@ -354,50 +355,56 @@ impl BlockProvider for BlockChain {
 	}
 
 	fn logs<F>(&self, mut blocks: Vec<BlockNumber>, matches: F, limit: Option<usize>) -> Vec<LocalizedLogEntry>
-		where F: Fn(&LogEntry) -> bool, Self: Sized {
+		where F: Fn(&LogEntry) -> bool + Send + Sync, Self: Sized {
 		// sort in reverse order
 		blocks.sort_by(|a, b| b.cmp(a));
 
-		let mut log_index = 0;
-		let mut logs = blocks.into_iter()
-			.filter_map(|number| self.block_hash(number).map(|hash| (number, hash)))
-			.filter_map(|(number, hash)| self.block_receipts(&hash).map(|r| (number, hash, r.receipts)))
-			.filter_map(|(number, hash, receipts)| self.block_body(&hash).map(|ref b| (number, hash, receipts, b.transaction_hashes())))
-			.flat_map(|(number, hash, mut receipts, mut hashes)| {
-				if receipts.len() != hashes.len() {
-					warn!("Block {} ({}) has different number of receipts ({}) to transactions ({}). Database corrupt?", number, hash, receipts.len(), hashes.len());
-					assert!(false);
-				}
-				log_index = receipts.iter().fold(0, |sum, receipt| sum + receipt.logs.len());
+		let mut logs = blocks
+			.chunks(128)
+			.flat_map(move |blocks_chunk| {
+				blocks_chunk.into_par_iter()
+					.filter_map(|number| self.block_hash(*number).map(|hash| (*number, hash)))
+					.filter_map(|(number, hash)| self.block_receipts(&hash).map(|r| (number, hash, r.receipts)))
+					.filter_map(|(number, hash, receipts)| self.block_body(&hash).map(|ref b| (number, hash, receipts, b.transaction_hashes())))
+					.flat_map(|(number, hash, mut receipts, mut hashes)| {
+						if receipts.len() != hashes.len() {
+							warn!("Block {} ({}) has different number of receipts ({}) to transactions ({}). Database corrupt?", number, hash, receipts.len(), hashes.len());
+							assert!(false);
+						}
+						let mut log_index = receipts.iter().fold(0, |sum, receipt| sum + receipt.logs.len());
 
-				let receipts_len = receipts.len();
-				hashes.reverse();
-				receipts.reverse();
-				receipts.into_iter()
-					.map(|receipt| receipt.logs)
-					.zip(hashes)
-					.enumerate()
-					.flat_map(move |(index, (mut logs, tx_hash))| {
-						let current_log_index = log_index;
-						let no_of_logs = logs.len();
-						log_index -= no_of_logs;
-
-						logs.reverse();
-						logs.into_iter()
+						let receipts_len = receipts.len();
+						hashes.reverse();
+						receipts.reverse();
+						receipts.into_iter()
+							.map(|receipt| receipt.logs)
+							.zip(hashes)
 							.enumerate()
-							.map(move |(i, log)| LocalizedLogEntry {
-								entry: log,
-								block_hash: hash,
-								block_number: number,
-								transaction_hash: tx_hash,
-								// iterating in reverse order
-								transaction_index: receipts_len - index - 1,
-								transaction_log_index: no_of_logs - i - 1,
-								log_index: current_log_index - i - 1,
+							.flat_map(move |(index, (mut logs, tx_hash))| {
+								let current_log_index = log_index;
+								let no_of_logs = logs.len();
+								log_index -= no_of_logs;
+
+								logs.reverse();
+								logs.into_iter()
+									.enumerate()
+									.map(move |(i, log)| LocalizedLogEntry {
+										entry: log,
+										block_hash: hash,
+										block_number: number,
+										transaction_hash: tx_hash,
+										// iterating in reverse order
+										transaction_index: receipts_len - index - 1,
+										transaction_log_index: no_of_logs - i - 1,
+										log_index: current_log_index - i - 1,
+									})
 							})
+							.filter(|log_entry| matches(&log_entry.entry))
+							.take(limit.unwrap_or(::std::usize::MAX))
+							.collect::<Vec<_>>()
 					})
+					.collect::<Vec<_>>()
 			})
-			.filter(|log_entry| matches(&log_entry.entry))
 			.take(limit.unwrap_or(::std::usize::MAX))
 			.collect::<Vec<LocalizedLogEntry>>();
 		logs.reverse();
@@ -1464,7 +1471,7 @@ mod tests {
 	use util::kvdb::KeyValueDB;
 	use util::hash::*;
 	use util::sha3::Hashable;
-	use receipt::Receipt;
+	use receipt::{Receipt, TransactionOutcome};
 	use blockchain::{BlockProvider, BlockChain, Config, ImportRoute};
 	use tests::helpers::*;
 	use blockchain::generator::{ChainGenerator, ChainIterator, BlockFinalizer};
@@ -2031,7 +2038,7 @@ mod tests {
 		let db = new_db();
 		let bc = new_chain(&genesis, db.clone());
 		insert_block(&db, &bc, &b1, vec![Receipt {
-			state_root: Some(H256::default()),
+			outcome: TransactionOutcome::StateRoot(H256::default()),
 			gas_used: 10_000.into(),
 			log_bloom: Default::default(),
 			logs: vec![
@@ -2040,7 +2047,7 @@ mod tests {
 			],
 		},
 		Receipt {
-			state_root: Some(H256::default()),
+			outcome: TransactionOutcome::StateRoot(H256::default()),
 			gas_used: 10_000.into(),
 			log_bloom: Default::default(),
 			logs: vec![
@@ -2049,7 +2056,7 @@ mod tests {
 		}]);
 		insert_block(&db, &bc, &b2, vec![
 			Receipt {
-				state_root: Some(H256::default()),
+				outcome: TransactionOutcome::StateRoot(H256::default()),
 				gas_used: 10_000.into(),
 				log_bloom: Default::default(),
 				logs: vec![

ethcore/src/builtin.rs

@@ -61,7 +61,7 @@ struct Linear {
 }
 
 /// A special pricing model for modular exponentiation.
-struct Modexp {
+struct ModexpPricer {
 	divisor: usize,
 }
 
@@ -71,7 +71,20 @@ impl Pricer for Linear {
 	}
 }
 
-impl Pricer for Modexp {
+/// A alt_bn128_parinig pricing model. This computes a price using a base cost and a cost per pair.
+struct AltBn128PairingPricer {
+	base: usize,
+	pair: usize,
+}
+
+impl Pricer for AltBn128PairingPricer {
+	fn cost(&self, input: &[u8]) -> U256 {
+		let cost = U256::from(self.base) + U256::from(self.pair) * U256::from(input.len() / 192);
+		cost
+	}
+}
+
+impl Pricer for ModexpPricer {
 	fn cost(&self, input: &[u8]) -> U256 {
 		let mut reader = input.chain(io::repeat(0));
 		let mut buf = [0; 32];
@@ -85,17 +98,47 @@ impl Pricer for Modexp {
 		let exp_len = read_len();
 		let mod_len = read_len();
 
-		// floor(max(length_of_MODULUS, length_of_BASE) ** 2 * max(length_of_EXPONENT, 1) / GQUADDIVISOR)
-		// TODO: is saturating the best behavior here?
+		if mod_len.is_zero() && base_len.is_zero() {
+			return U256::zero()
+		}
+
+		let max_len = U256::from(u32::max_value() / 2);
+		if base_len > max_len || mod_len > max_len || exp_len > max_len {
+			return U256::max_value();
+		}
+		let (base_len, exp_len, mod_len) = (base_len.low_u64(), exp_len.low_u64(), mod_len.low_u64());
+
 		let m = max(mod_len, base_len);
-		match m.overflowing_mul(m) {
-			(_, true) => U256::max_value(),
-			(val, _) => {
-				match val.overflowing_mul(max(exp_len, U256::one())) {
-					(_, true) => U256::max_value(),
-					(val, _) => val / (self.divisor as u64).into()
-				}
-			}
+		// read fist 32-byte word of the exponent.
+		let exp_low = if base_len + 96 >= input.len() as u64 { U256::zero() } else {
+			let mut buf = [0; 32];
+			let mut reader = input[(96 + base_len as usize)..].chain(io::repeat(0));
+			let len = min(exp_len, 32) as usize;
+			reader.read_exact(&mut buf[(32 - len)..]).expect("reading from zero-extended memory cannot fail; qed");
+			U256::from(H256::from_slice(&buf[..]))
+		};
+
+		let adjusted_exp_len = Self::adjusted_exp_len(exp_len, exp_low);
+
+		(Self::mult_complexity(m) * max(adjusted_exp_len, 1) / self.divisor as u64).into()
+	}
+}
+
+impl ModexpPricer {
+	fn adjusted_exp_len(len: u64, exp_low: U256) -> u64 {
+		let bit_index = if exp_low.is_zero() { 0 } else { (255 - exp_low.leading_zeros()) as u64 };
+		if len <= 32 {
+			bit_index
+		} else {
+			8 * (len - 32) + bit_index
+		}
+	}
+
+	fn mult_complexity(x: u64) -> u64 {
+		match x {
+			x if x <= 64 => x * x,
+			x if x <= 1024 => (x * x) / 4 + 96 * x - 3072,
+			x => (x * x) / 16 + 480 * x - 199680,
 		}
 	}
 }
@@ -135,7 +178,7 @@ impl From<ethjson::spec::Builtin> for Builtin {
 				})
 			}
 			ethjson::spec::Pricing::Modexp(exp) => {
-				Box::new(Modexp {
+				Box::new(ModexpPricer {
 					divisor: if exp.divisor == 0 {
 						warn!("Zero modexp divisor specified. Falling back to default.");
 						10
@@ -144,6 +187,12 @@ impl From<ethjson::spec::Builtin> for Builtin {
 					}
 				})
 			}
+			ethjson::spec::Pricing::AltBn128Pairing(pricer) => {
+				Box::new(AltBn128PairingPricer {
+					base: pricer.base,
+					pair: pricer.pair,
+				})
+			}
 		};
 
 		Builtin {
@@ -162,9 +211,9 @@ fn ethereum_builtin(name: &str) -> Box<Impl> {
 		"sha256" => Box::new(Sha256) as Box<Impl>,
 		"ripemd160" => Box::new(Ripemd160) as Box<Impl>,
 		"modexp" => Box::new(ModexpImpl) as Box<Impl>,
-		"bn128_add" => Box::new(Bn128AddImpl) as Box<Impl>,
-		"bn128_mul" => Box::new(Bn128MulImpl) as Box<Impl>,
-		"bn128_pairing" => Box::new(Bn128PairingImpl) as Box<Impl>,
+		"alt_bn128_add" => Box::new(Bn128AddImpl) as Box<Impl>,
+		"alt_bn128_mul" => Box::new(Bn128MulImpl) as Box<Impl>,
+		"alt_bn128_pairing" => Box::new(Bn128PairingImpl) as Box<Impl>,
 		_ => panic!("invalid builtin name: {}", name),
 	}
 }
@@ -266,6 +315,38 @@ impl Impl for Ripemd160 {
 	}
 }
 
+// calculate modexp: exponentiation by squaring. the `num` crate has pow, but not modular.
+fn modexp(mut base: BigUint, mut exp: BigUint, modulus: BigUint) -> BigUint {
+	use num::Integer;
+
+	if modulus <= BigUint::one() { // n^m % 0 || n^m % 1
+		return BigUint::zero();
+	}
+
+	if exp.is_zero() { // n^0 % m
+		return BigUint::one();
+	}
+
+	if base.is_zero() { // 0^n % m, n>0
+		return BigUint::zero();
+	}
+
+	let mut result = BigUint::one();
+	base = base % &modulus;
+
+	// fast path for base divisible by modulus.
+	if base.is_zero() { return BigUint::zero() }
+	while !exp.is_zero() {
+		if exp.is_odd() {
+			result = (result * &base) % &modulus;
+		}
+
+		exp = exp >> 1;
+		base = (base.clone() * base) % &modulus;
+	}
+	result
+}
+
 impl Impl for ModexpImpl {
 	fn execute(&self, input: &[u8], output: &mut BytesRef) -> Result<(), Error> {
 		let mut reader = input.chain(io::repeat(0));
@@ -283,47 +364,25 @@ impl Impl for ModexpImpl {
 		let exp_len = read_len(&mut reader);
 		let mod_len = read_len(&mut reader);
 
-		// read the numbers themselves.
-		let mut buf = vec![0; max(mod_len, max(base_len, exp_len))];
-		let mut read_num = |len| {
-			reader.read_exact(&mut buf[..len]).expect("reading from zero-extended memory cannot fail; qed");
-			BigUint::from_bytes_be(&buf[..len])
+		// Gas formula allows arbitrary large exp_len when base and modulus are empty, so we need to handle empty base first.
+		let r = if base_len == 0 && mod_len == 0 {
+			BigUint::zero()
+		} else {
+			// read the numbers themselves.
+			let mut buf = vec![0; max(mod_len, max(base_len, exp_len))];
+			let mut read_num = |len| {
+				reader.read_exact(&mut buf[..len]).expect("reading from zero-extended memory cannot fail; qed");
+				BigUint::from_bytes_be(&buf[..len])
+			};
+
+			let base = read_num(base_len);
+			let exp = read_num(exp_len);
+			let modulus = read_num(mod_len);
+			modexp(base, exp, modulus)
 		};
 
-		let base = read_num(base_len);
-		let exp = read_num(exp_len);
-		let modulus = read_num(mod_len);
-
-		// calculate modexp: exponentiation by squaring. the `num` crate has pow, but not modular.
-		fn modexp(mut base: BigUint, mut exp: BigUint, modulus: BigUint) -> BigUint {
-			use num::Integer;
-
-			match (base.is_zero(), exp.is_zero()) {
-				(_, true) => return BigUint::one(), // n^0 % m
-				(true, false) => return BigUint::zero(), // 0^n % m, n>0
-				(false, false) if modulus <= BigUint::one() => return BigUint::zero(), // a^b % 1 = 0.
-				_ => {}
-			}
-
-			let mut result = BigUint::one();
-			base = base % &modulus;
-
-			// fast path for base divisible by modulus.
-			if base.is_zero() { return result }
-			while !exp.is_zero() {
-				if exp.is_odd() {
-					result = (result * &base) % &modulus;
-				}
-
-				exp = exp >> 1;
-				base = (base.clone() * base) % &modulus;
-			}
-
-			result
-		}
-
 		// write output to given memory, left padded and same length as the modulus.
-		let bytes = modexp(base, exp, modulus).to_bytes_be();
+		let bytes = r.to_bytes_be();
 
 		// always true except in the case of zero-length modulus, which leads to
 		// output of length and value 1.
@@ -352,8 +411,8 @@ fn read_point(reader: &mut io::Chain<&[u8], io::Repeat>) -> Result<::bn::G1, Err
 	let px = Fq::from_slice(&buf[0..32]).map_err(|_| Error::from("Invalid point x coordinate"))?;
 
 	reader.read_exact(&mut buf[..]).expect("reading from zero-extended memory cannot fail; qed");
-	let py = Fq::from_slice(&buf[0..32]).map_err(|_| Error::from("Invalid point x coordinate"))?;
 
+	let py = Fq::from_slice(&buf[0..32]).map_err(|_| Error::from("Invalid point y coordinate"))?;
 	Ok(
 		if px == Fq::zero() && py == Fq::zero() {
 			G1::zero()
@@ -404,50 +463,29 @@ impl Impl for Bn128MulImpl {
 	}
 }
 
-mod bn128_gen {
-	use bn::{AffineG1, AffineG2, Fq, Fq2, G1, G2, Gt, pairing};
-
-	lazy_static! {
-		pub static ref P1: G1 = G1::from(AffineG1::new(
-			Fq::from_str("1").expect("1 is a valid field element"),
-			Fq::from_str("2").expect("2 is a valid field element"),
-		).expect("Generator P1(1, 2) is a valid curve point"));
-	}
-
-	lazy_static! {
-		pub static ref P2: G2 = G2::from(AffineG2::new(
-			Fq2::new(
-				Fq::from_str("10857046999023057135944570762232829481370756359578518086990519993285655852781")
-					.expect("a valid field element"),
-				Fq::from_str("11559732032986387107991004021392285783925812861821192530917403151452391805634")
-					.expect("a valid field element"),
-			),
-			Fq2::new(
-				Fq::from_str("8495653923123431417604973247489272438418190587263600148770280649306958101930")
-					.expect("a valid field element"),
-				Fq::from_str("4082367875863433681332203403145435568316851327593401208105741076214120093531")
-					.expect("a valid field element"),
-			),
-		).expect("the generator P2(10857046999023057135944570762232829481370756359578518086990519993285655852781 + 11559732032986387107991004021392285783925812861821192530917403151452391805634i, 8495653923123431417604973247489272438418190587263600148770280649306958101930 + 4082367875863433681332203403145435568316851327593401208105741076214120093531i) is a valid curve point"));
-	}
-
-	lazy_static! {
-		pub static ref P1_P2_PAIRING: Gt = pairing(P1.clone(), P2.clone());
-	}
-}
-
 impl Impl for Bn128PairingImpl {
 	/// Can fail if:
 	///     - input length is not a multiple of 192
 	///     - any of odd points does not belong to bn128 curve
 	///     - any of even points does not belong to the twisted bn128 curve over the field F_p^2 = F_p[i] / (i^2 + 1)
 	fn execute(&self, input: &[u8], output: &mut BytesRef) -> Result<(), Error> {
-		use bn::{AffineG1, AffineG2, Fq, Fq2, pairing, G1, G2, Gt};
-
-		let elements = input.len() / 192; // (a, b_a, b_b - each 64-byte affine coordinates)
 		if input.len() % 192 != 0 {
 			return Err("Invalid input length, must be multiple of 192 (3 * (32*2))".into())
 		}
+
+		if let Err(err) = self.execute_with_error(input, output) {
+			trace!("Pairining error: {:?}", err);
+			return Err(err)
+		}
+		Ok(())
+	}
+}
+
+impl Bn128PairingImpl {
+	fn execute_with_error(&self, input: &[u8], output: &mut BytesRef) -> Result<(), Error> {
+		use bn::{AffineG1, AffineG2, Fq, Fq2, pairing, G1, G2, Gt, Group};
+
+		let elements = input.len() / 192; // (a, b_a, b_b - each 64-byte affine coordinates)
 		let ret_val = if input.len() == 0 {
 			U256::one()
 		} else {
@@ -459,34 +497,36 @@ impl Impl for Bn128PairingImpl {
 				let a_y = Fq::from_slice(&input[idx*192+32..idx*192+64])
 					.map_err(|_| Error::from("Invalid a argument y coordinate"))?;
 
-				let b_b_x = Fq::from_slice(&input[idx*192+64..idx*192+96])
+				let b_a_y = Fq::from_slice(&input[idx*192+64..idx*192+96])
 					.map_err(|_| Error::from("Invalid b argument imaginary coeff x coordinate"))?;
 
-				let b_b_y = Fq::from_slice(&input[idx*192+96..idx*192+128])
+				let b_a_x = Fq::from_slice(&input[idx*192+96..idx*192+128])
 					.map_err(|_| Error::from("Invalid b argument imaginary coeff y coordinate"))?;
 
-				let b_a_x = Fq::from_slice(&input[idx*192+128..idx*192+160])
+				let b_b_y = Fq::from_slice(&input[idx*192+128..idx*192+160])
 					.map_err(|_| Error::from("Invalid b argument real coeff x coordinate"))?;
 
-				let b_a_y = Fq::from_slice(&input[idx*192+160..idx*192+192])
+				let b_b_x = Fq::from_slice(&input[idx*192+160..idx*192+192])
 					.map_err(|_| Error::from("Invalid b argument real coeff y coordinate"))?;
 
-				vals.push((
-					G1::from(
-						AffineG1::new(a_x, a_y).map_err(|_| Error::from("Invalid a argument - not on curve"))?
-					),
-					G2::from(
-						AffineG2::new(
-							Fq2::new(b_a_x, b_a_y),
-							Fq2::new(b_b_x, b_b_y),
-						).map_err(|_| Error::from("Invalid b argument - not on curve"))?
-					),
-				));
+				let b_a = Fq2::new(b_a_x, b_a_y);
+				let b_b = Fq2::new(b_b_x, b_b_y);
+				let b = if b_a.is_zero() && b_b.is_zero() {
+					G2::zero()
+				} else {
+					G2::from(AffineG2::new(b_a, b_b).map_err(|_| Error::from("Invalid b argument - not on curve"))?)
+				};
+				let a = if a_x.is_zero() && a_y.is_zero() {
+					G1::zero()
+				} else {
+					G1::from(AffineG1::new(a_x, a_y).map_err(|_| Error::from("Invalid a argument - not on curve"))?)
+				};
+				vals.push((a, b));
 			};
 
 			let mul = vals.into_iter().fold(Gt::one(), |s, (a, b)| s * pairing(a, b));
 
-			if mul == *bn128_gen::P1_P2_PAIRING {
+			if mul == Gt::one() {
 				U256::one()
 			} else {
 				U256::zero()
@@ -503,10 +543,44 @@ impl Impl for Bn128PairingImpl {
 
 #[cfg(test)]
 mod tests {
-	use super::{Builtin, Linear, ethereum_builtin, Pricer, Modexp};
+	use super::{Builtin, Linear, ethereum_builtin, Pricer, ModexpPricer, modexp as me};
 	use ethjson;
 	use util::{U256, BytesRef};
 	use rustc_hex::FromHex;
+	use num::{BigUint, Zero, One};
+
+	#[test]
+	fn modexp_func() {
+		// n^0 % m == 1
+		let mut base = BigUint::parse_bytes(b"12345", 10).unwrap();
+		let mut exp = BigUint::zero();
+		let mut modulus = BigUint::parse_bytes(b"789", 10).unwrap();
+		assert_eq!(me(base, exp, modulus), BigUint::one());
+
+		// 0^n % m == 0
+		base = BigUint::zero();
+		exp = BigUint::parse_bytes(b"12345", 10).unwrap();
+		modulus = BigUint::parse_bytes(b"789", 10).unwrap();
+		assert_eq!(me(base, exp, modulus), BigUint::zero());
+
+		// n^m % 1 == 0
+		base = BigUint::parse_bytes(b"12345", 10).unwrap();
+		exp = BigUint::parse_bytes(b"789", 10).unwrap();
+		modulus = BigUint::one();
+		assert_eq!(me(base, exp, modulus), BigUint::zero());
+
+		// if n % d == 0, then n^m % d == 0
+		base = BigUint::parse_bytes(b"12345", 10).unwrap();
+		exp = BigUint::parse_bytes(b"789", 10).unwrap();
+		modulus = BigUint::parse_bytes(b"15", 10).unwrap();
+		assert_eq!(me(base, exp, modulus), BigUint::zero());
+
+		// others
+		base = BigUint::parse_bytes(b"12345", 10).unwrap();
+		exp = BigUint::parse_bytes(b"789", 10).unwrap();
+		modulus = BigUint::parse_bytes(b"97", 10).unwrap();
+		assert_eq!(me(base, exp, modulus), BigUint::parse_bytes(b"55", 10).unwrap());
+	}
 
 	#[test]
 	fn identity() {
@@ -632,10 +706,28 @@ mod tests {
 	fn modexp() {
 
 		let f = Builtin {
-			pricer: Box::new(Modexp { divisor: 20 }),
+			pricer: Box::new(ModexpPricer { divisor: 20 }),
 			native: ethereum_builtin("modexp"),
 			activate_at: 0,
 		};
+
+		// test for potential exp len overflow
+		{
+			let input = FromHex::from_hex("\
+				00000000000000000000000000000000000000000000000000000000000000ff\
+				2a1e530000000000000000000000000000000000000000000000000000000000\
+				0000000000000000000000000000000000000000000000000000000000000000"
+				).unwrap();
+
+			let mut output = vec![0u8; 32];
+			let expected = FromHex::from_hex("0000000000000000000000000000000000000000000000000000000000000000").unwrap();
+			let expected_cost = U256::max_value();
+
+			f.execute(&input[..], &mut BytesRef::Fixed(&mut output[..])).expect("Builtin should fail");
+			assert_eq!(output, expected);
+			assert_eq!(f.cost(&input[..]), expected_cost.into());
+		}
+
 		// fermat's little theorem example.
 		{
 			let input = FromHex::from_hex("\
@@ -649,7 +741,7 @@ mod tests {
 
 			let mut output = vec![0u8; 32];
 			let expected = FromHex::from_hex("0000000000000000000000000000000000000000000000000000000000000001").unwrap();
-			let expected_cost = 1638;
+			let expected_cost = 13056;
 
 			f.execute(&input[..], &mut BytesRef::Fixed(&mut output[..])).expect("Builtin should not fail");
 			assert_eq!(output, expected);
@@ -660,15 +752,15 @@ mod tests {
 		{
 			let input = FromHex::from_hex("\
 				0000000000000000000000000000000000000000000000000000000000000000\
- 				0000000000000000000000000000000000000000000000000000000000000020\
- 				0000000000000000000000000000000000000000000000000000000000000020\
- 				fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2e\
- 				fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f"
+				0000000000000000000000000000000000000000000000000000000000000020\
+				0000000000000000000000000000000000000000000000000000000000000020\
+				fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2e\
+				fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f"
 			).unwrap();
 
 			let mut output = vec![0u8; 32];
 			let expected = FromHex::from_hex("0000000000000000000000000000000000000000000000000000000000000000").unwrap();
-			let expected_cost = 1638;
+			let expected_cost = 13056;
 
 			f.execute(&input[..], &mut BytesRef::Fixed(&mut output[..])).expect("Builtin should not fail");
 			assert_eq!(output, expected);
@@ -688,7 +780,7 @@ mod tests {
 
 			let mut output = vec![0u8; 32];
 			let expected = FromHex::from_hex("3b01b01ac41f2d6e917c6d6a221ce793802469026d9ab7578fa2e79e4da6aaab").unwrap();
-			let expected_cost = 102;
+			let expected_cost = 768;
 
 			f.execute(&input[..], &mut BytesRef::Fixed(&mut output[..])).expect("Builtin should not fail");
 			assert_eq!(output, expected);
@@ -719,7 +811,7 @@ mod tests {
 
 		let f = Builtin {
 			pricer: Box::new(Linear { base: 0, word: 0 }),
-			native: ethereum_builtin("bn128_add"),
+			native: ethereum_builtin("alt_bn128_add"),
 			activate_at: 0,
 		};
 
@@ -780,7 +872,7 @@ mod tests {
 
 		let f = Builtin {
 			pricer: Box::new(Linear { base: 0, word: 0 }),
-			native: ethereum_builtin("bn128_mul"),
+			native: ethereum_builtin("alt_bn128_mul"),
 			activate_at: 0,
 		};
 
@@ -820,7 +912,7 @@ mod tests {
 	fn builtin_pairing() -> Builtin {
 		Builtin {
 			pricer: Box::new(Linear { base: 0, word: 0 }),
-			native: ethereum_builtin("bn128_pairing"),
+			native: ethereum_builtin("alt_bn128_pairing"),
 			activate_at: 0,
 		}
 	}

ethcore/src/client/client.rs

@@ -24,7 +24,7 @@ use time::precise_time_ns;
 // util
 use util::{Bytes, PerfTimer, Itertools, Mutex, RwLock, MutexGuard, Hashable};
 use util::{journaldb, DBValue, TrieFactory, Trie};
-use util::{U256, H256, Address, H2048};
+use util::{U256, H256, Address};
 use util::trie::TrieSpec;
 use util::kvdb::*;
 
@@ -748,7 +748,7 @@ impl Client {
 								self.factories.clone(),
 							).expect("state known to be available for just-imported block; qed");
 
-							let options = TransactOptions { tracing: false, vm_tracing: false, check_nonce: false };
+							let options = TransactOptions::with_no_tracing().dont_check_nonce().save_output_from_contract();
 							let res = Executive::new(&mut state, &env_info, &*self.engine)
 								.transact(&transaction, options);
 
@@ -912,7 +912,7 @@ impl Client {
 			_ => {},
 		}
 
-		let block_number = match self.block_number(id.clone()) {
+		let block_number = match self.block_number(id) {
 			Some(num) => num,
 			None => return None,
 		};
@@ -1111,6 +1111,50 @@ impl Client {
 			data: data,
 		}.fake_sign(from)
 	}
+
+	fn block_number_ref(&self, id: &BlockId) -> Option<BlockNumber> {
+		match *id {
+			BlockId::Number(number) => Some(number),
+			BlockId::Hash(ref hash) => self.chain.read().block_number(hash),
+			BlockId::Earliest => Some(0),
+			BlockId::Latest | BlockId::Pending => Some(self.chain.read().best_block_number()),
+		}
+	}
+
+	fn do_virtual_call(&self, env_info: &EnvInfo, state: &mut State<StateDB>, t: &SignedTransaction, analytics: CallAnalytics) -> Result<Executed, CallError> {
+		fn call<E, V, T>(
+			state: &mut State<StateDB>,
+			env_info: &EnvInfo,
+			engine: &E,
+			state_diff: bool,
+			transaction: &SignedTransaction,
+			options: TransactOptions<T, V>,
+		) -> Result<Executed, CallError> where
+			E: Engine + ?Sized,
+			T: trace::Tracer,
+			V: trace::VMTracer,
+		{
+			let options = options.dont_check_nonce().save_output_from_contract();
+			let original_state = if state_diff { Some(state.clone()) } else { None };
+
+			let mut ret = Executive::new(state, env_info, engine).transact_virtual(transaction, options)?;
+
+			if let Some(original) = original_state {
+				ret.state_diff = Some(state.diff_from(original).map_err(ExecutionError::from)?);
+			}
+			Ok(ret)
+		}
+
+		let state_diff = analytics.state_diffing;
+		let engine = &*self.engine;
+
+		match (analytics.transaction_tracing, analytics.vm_tracing) {
+			(true, true) => call(state, env_info, engine, state_diff, t, TransactOptions::with_tracing_and_vm_tracing()),
+			(true, false) => call(state, env_info, engine, state_diff, t, TransactOptions::with_tracing()),
+			(false, true) => call(state, env_info, engine, state_diff, t, TransactOptions::with_vm_tracing()),
+			(false, false) => call(state, env_info, engine, state_diff, t, TransactOptions::with_no_tracing()),
+		}
+	}
 }
 
 impl snapshot::DatabaseRestore for Client {
@@ -1141,17 +1185,8 @@ impl BlockChainClient for Client {
 
 		// that's just a copy of the state.
 		let mut state = self.state_at(block).ok_or(CallError::StatePruned)?;
-		let original_state = if analytics.state_diffing { Some(state.clone()) } else { None };
 
-		let options = TransactOptions { tracing: analytics.transaction_tracing, vm_tracing: analytics.vm_tracing, check_nonce: false };
-		let mut ret = Executive::new(&mut state, &env_info, &*self.engine).transact_virtual(t, options)?;
-
-		// TODO gav move this into Executive.
-		if let Some(original) = original_state {
-			ret.state_diff = Some(state.diff_from(original).map_err(ExecutionError::from)?);
-		}
-
-		Ok(ret)
+		self.do_virtual_call(&env_info, &mut state, t, analytics)
 	}
 
 	fn estimate_gas(&self, t: &SignedTransaction, block: BlockId) -> Result<U256, CallError> {
@@ -1166,7 +1201,7 @@ impl BlockChainClient for Client {
 		// that's just a copy of the state.
 		let original_state = self.state_at(block).ok_or(CallError::StatePruned)?;
 		let sender = t.sender();
-		let options = TransactOptions { tracing: true, vm_tracing: false, check_nonce: false };
+		let options = || TransactOptions::with_tracing();
 
 		let cond = |gas| {
 			let mut tx = t.as_unsigned().clone();
@@ -1175,7 +1210,7 @@ impl BlockChainClient for Client {
 
 			let mut state = original_state.clone();
 			Ok(Executive::new(&mut state, &env_info, &*self.engine)
-				.transact_virtual(&tx, options.clone())
+				.transact_virtual(&tx, options())
 				.map(|r| r.exception.is_none())
 				.unwrap_or(false))
 		};
@@ -1231,22 +1266,17 @@ impl BlockChainClient for Client {
 			return Err(CallError::TransactionNotFound);
 		}
 
-		let options = TransactOptions { tracing: analytics.transaction_tracing, vm_tracing: analytics.vm_tracing, check_nonce: false };
 		const PROOF: &'static str = "Transactions fetched from blockchain; blockchain transactions are valid; qed";
 		let rest = txs.split_off(address.index);
 		for t in txs {
 			let t = SignedTransaction::new(t).expect(PROOF);
-			let x = Executive::new(&mut state, &env_info, &*self.engine).transact(&t, Default::default())?;
+			let x = Executive::new(&mut state, &env_info, &*self.engine).transact(&t, TransactOptions::with_no_tracing())?;
 			env_info.gas_used = env_info.gas_used + x.gas_used;
 		}
 		let first = rest.into_iter().next().expect("We split off < `address.index`; Length is checked earlier; qed");
 		let t = SignedTransaction::new(first).expect(PROOF);
-		let original_state = if analytics.state_diffing { Some(state.clone()) } else { None };
-		let mut ret = Executive::new(&mut state, &env_info, &*self.engine).transact(&t, options)?;
-		if let Some(original) = original_state {
-			ret.state_diff = Some(state.diff_from(original).map_err(ExecutionError::from)?)
-		}
-		Ok(ret)
+
+		self.do_virtual_call(&env_info, &mut state, &t, analytics)
 	}
 
 	fn mode(&self) -> IpcMode {
@@ -1308,12 +1338,7 @@ impl BlockChainClient for Client {
 	}
 
 	fn block_number(&self, id: BlockId) -> Option<BlockNumber> {
-		match id {
-			BlockId::Number(number) => Some(number),
-			BlockId::Hash(ref hash) => self.chain.read().block_number(hash),
-			BlockId::Earliest => Some(0),
-			BlockId::Latest | BlockId::Pending => Some(self.chain.read().best_block_number()),
-		}
+		self.block_number_ref(&id)
 	}
 
 	fn block_body(&self, id: BlockId) -> Option<encoded::Body> {
@@ -1566,16 +1591,17 @@ impl BlockChainClient for Client {
 		self.engine.additional_params().into_iter().collect()
 	}
 
-	fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockId, to_block: BlockId) -> Option<Vec<BlockNumber>> {
-		match (self.block_number(from_block), self.block_number(to_block)) {
-			(Some(from), Some(to)) => Some(self.chain.read().blocks_with_bloom(bloom, from, to)),
-			_ => None
-		}
-	}
-
 	fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry> {
+		let (from, to) = match (self.block_number_ref(&filter.from_block), self.block_number_ref(&filter.to_block)) {
+			(Some(from), Some(to)) => (from, to),
+			_ => return Vec::new(),
+		};
+
+		let chain = self.chain.read();
 		let blocks = filter.bloom_possibilities().iter()
-			.filter_map(|bloom| self.blocks_with_bloom(bloom, filter.from_block.clone(), filter.to_block.clone()))
+			.map(move |bloom| {
+				chain.blocks_with_bloom(bloom, from, to)
+			})
 			.flat_map(|m| m)
 			// remove duplicate elements
 			.collect::<HashSet<u64>>()
@@ -1894,7 +1920,7 @@ impl ProvingBlockChainClient for Client {
 		let backend = state::backend::Proving::new(jdb.as_hashdb_mut());
 
 		let mut state = state.replace_backend(backend);
-		let options = TransactOptions { tracing: false, vm_tracing: false, check_nonce: false };
+		let options = TransactOptions::with_no_tracing().dont_check_nonce().save_output_from_contract();
 		let res = Executive::new(&mut state, &env_info, &*self.engine).transact(&transaction, options);
 
 		match res {
@@ -1952,7 +1978,7 @@ fn transaction_receipt(engine: &Engine, mut tx: LocalizedTransaction, mut receip
 			log_index: no_of_logs + i,
 		}).collect(),
 		log_bloom: receipt.log_bloom,
-		state_root: receipt.state_root,
+		outcome: receipt.outcome,
 	}
 }
 
@@ -1997,7 +2023,7 @@ mod tests {
 		use super::transaction_receipt;
 		use ethkey::KeyPair;
 		use log_entry::{LogEntry, LocalizedLogEntry};
-		use receipt::{Receipt, LocalizedReceipt};
+		use receipt::{Receipt, LocalizedReceipt, TransactionOutcome};
 		use transaction::{Transaction, LocalizedTransaction, Action};
 		use util::Hashable;
 		use tests::helpers::TestEngine;
@@ -2009,7 +2035,7 @@ mod tests {
 
 		let block_number = 1;
 		let block_hash = 5.into();
-		let state_root = Some(99.into());
+		let state_root = 99.into();
 		let gas_used = 10.into();
 		let raw_tx = Transaction {
 			nonce: 0.into(),
@@ -2037,12 +2063,12 @@ mod tests {
 			data: vec![],
 		}];
 		let receipts = vec![Receipt {
-			state_root: state_root,
+			outcome: TransactionOutcome::StateRoot(state_root),
 			gas_used: 5.into(),
 			log_bloom: Default::default(),
 			logs: vec![logs[0].clone()],
 		}, Receipt {
-			state_root: state_root,
+			outcome: TransactionOutcome::StateRoot(state_root),
 			gas_used: gas_used,
 			log_bloom: Default::default(),
 			logs: logs.clone(),
@@ -2078,7 +2104,7 @@ mod tests {
 				log_index: 2,
 			}],
 			log_bloom: Default::default(),
-			state_root: state_root,
+			outcome: TransactionOutcome::StateRoot(state_root),
 		});
 	}
 }

ethcore/src/client/evm_test_client.rs

@@ -18,11 +18,11 @@
 
 use std::fmt;
 use std::sync::Arc;
-use util::{self, U256, journaldb, trie};
+use util::{self, U256, H256, journaldb, trie};
 use util::kvdb::{self, KeyValueDB};
-use {state, state_db, client, executive, trace, db, spec};
+use {state, state_db, client, executive, trace, transaction, db, spec, pod_state};
 use factory::Factories;
-use evm::{self, VMType};
+use evm::{self, VMType, FinalizationResult};
 use evm::action_params::ActionParams;
 
 /// EVM test Error.
@@ -33,9 +33,17 @@ pub enum EvmTestError {
 	/// EVM error.
 	Evm(evm::Error),
 	/// Initialization error.
-	Initialization(::error::Error),
+	ClientError(::error::Error),
 	/// Low-level database error.
 	Database(String),
+	/// Post-condition failure,
+	PostCondition(String),
+}
+
+impl<E: Into<::error::Error>> From<E> for EvmTestError {
+	fn from(err: E) -> Self {
+		EvmTestError::ClientError(err.into())
+	}
 }
 
 impl fmt::Display for EvmTestError {
@@ -45,52 +53,118 @@ impl fmt::Display for EvmTestError {
 		match *self {
 			Trie(ref err) => write!(fmt, "Trie: {}", err),
 			Evm(ref err) => write!(fmt, "EVM: {}", err),
-			Initialization(ref err) => write!(fmt, "Initialization: {}", err),
+			ClientError(ref err) => write!(fmt, "{}", err),
 			Database(ref err) => write!(fmt, "DB: {}", err),
+			PostCondition(ref err) => write!(fmt, "{}", err),
 		}
 	}
 }
 
-/// Simplified, single-block EVM test client.
-pub struct EvmTestClient {
-	state_db: state_db::StateDB,
-	factories: Factories,
-	spec: spec::Spec,
+use ethereum;
+use ethjson::state::test::ForkSpec;
+
+lazy_static! {
+	pub static ref FRONTIER: spec::Spec = ethereum::new_frontier_test();
+	pub static ref HOMESTEAD: spec::Spec = ethereum::new_homestead_test();
+	pub static ref EIP150: spec::Spec = ethereum::new_eip150_test();
+	pub static ref EIP161: spec::Spec = ethereum::new_eip161_test();
+	pub static ref BYZANTIUM: spec::Spec = ethereum::new_byzantium_test();
+	pub static ref BYZANTIUM_TRANSITION: spec::Spec = ethereum::new_transition_test();
 }
 
-impl EvmTestClient {
-	/// Creates new EVM test client with in-memory DB initialized with genesis of given Spec.
-	pub fn new(spec: spec::Spec) -> Result<Self, EvmTestError> {
-		let factories = Factories {
-			vm: evm::Factory::new(VMType::Interpreter, 5 * 1024),
-			trie: trie::TrieFactory::new(trie::TrieSpec::Secure),
-			accountdb: Default::default(),
-		};
-		let db = Arc::new(kvdb::in_memory(db::NUM_COLUMNS.expect("We use column-based DB; qed")));
-		let journal_db = journaldb::new(db.clone(), journaldb::Algorithm::EarlyMerge, db::COL_STATE);
-		let mut state_db = state_db::StateDB::new(journal_db, 5 * 1024 * 1024);
-		state_db = spec.ensure_db_good(state_db, &factories).map_err(EvmTestError::Initialization)?;
-		// Write DB
-		{
-			let mut batch = kvdb::DBTransaction::new();
-			state_db.journal_under(&mut batch, 0, &spec.genesis_header().hash()).map_err(|e| EvmTestError::Initialization(e.into()))?;
-			db.write(batch).map_err(EvmTestError::Database)?;
+/// Simplified, single-block EVM test client.
+pub struct EvmTestClient<'a> {
+	state: state::State<state_db::StateDB>,
+	spec: &'a spec::Spec,
+}
+
+impl<'a> EvmTestClient<'a> {
+	/// Converts a json spec definition into spec.
+	pub fn spec_from_json(spec: &ForkSpec) -> Option<&'static spec::Spec> {
+		match *spec {
+			ForkSpec::Frontier => Some(&*FRONTIER),
+			ForkSpec::Homestead => Some(&*HOMESTEAD),
+			ForkSpec::EIP150 => Some(&*EIP150),
+			ForkSpec::EIP158 => Some(&*EIP161),
+			ForkSpec::Byzantium => Some(&*BYZANTIUM),
+			ForkSpec::EIP158ToByzantiumAt5 => Some(&BYZANTIUM_TRANSITION),
+			ForkSpec::FrontierToHomesteadAt5 | ForkSpec::HomesteadToDaoAt5 | ForkSpec::HomesteadToEIP150At5 => None,
+			_ => None,
 		}
+	}
+
+	/// Creates new EVM test client with in-memory DB initialized with genesis of given Spec.
+	pub fn new(spec: &'a spec::Spec) -> Result<Self, EvmTestError> {
+		let factories = Self::factories();
+		let state =	Self::state_from_spec(spec, &factories)?;
 
 		Ok(EvmTestClient {
-			state_db,
-			factories,
+			state,
 			spec,
 		})
 	}
 
-	/// Call given contract.
+	/// Creates new EVM test client with in-memory DB initialized with given PodState.
+	pub fn from_pod_state(spec: &'a spec::Spec, pod_state: pod_state::PodState) -> Result<Self, EvmTestError> {
+		let factories = Self::factories();
+		let state =	Self::state_from_pod(spec, &factories, pod_state)?;
+
+		Ok(EvmTestClient {
+			state,
+			spec,
+		})
+	}
+
+	fn factories() -> Factories {
+		Factories {
+			vm: evm::Factory::new(VMType::Interpreter, 5 * 1024),
+			trie: trie::TrieFactory::new(trie::TrieSpec::Secure),
+			accountdb: Default::default(),
+		}
+	}
+
+	fn state_from_spec(spec: &'a spec::Spec, factories: &Factories) -> Result<state::State<state_db::StateDB>, EvmTestError> {
+		let db = Arc::new(kvdb::in_memory(db::NUM_COLUMNS.expect("We use column-based DB; qed")));
+		let journal_db = journaldb::new(db.clone(), journaldb::Algorithm::EarlyMerge, db::COL_STATE);
+		let mut state_db = state_db::StateDB::new(journal_db, 5 * 1024 * 1024);
+		state_db = spec.ensure_db_good(state_db, factories)?;
+
+		let genesis = spec.genesis_header();
+		// Write DB
+		{
+			let mut batch = kvdb::DBTransaction::new();
+			state_db.journal_under(&mut batch, 0, &genesis.hash())?;
+			db.write(batch).map_err(EvmTestError::Database)?;
+		}
+
+		state::State::from_existing(
+			state_db,
+			*genesis.state_root(),
+			spec.engine.account_start_nonce(0),
+			factories.clone()
+		).map_err(EvmTestError::Trie)
+	}
+
+	fn state_from_pod(spec: &'a spec::Spec, factories: &Factories, pod_state: pod_state::PodState) -> Result<state::State<state_db::StateDB>, EvmTestError> {
+		let db = Arc::new(kvdb::in_memory(db::NUM_COLUMNS.expect("We use column-based DB; qed")));
+		let journal_db = journaldb::new(db.clone(), journaldb::Algorithm::EarlyMerge, db::COL_STATE);
+		let state_db = state_db::StateDB::new(journal_db, 5 * 1024 * 1024);
+		let mut state = state::State::new(
+			state_db,
+			spec.engine.account_start_nonce(0),
+			factories.clone(),
+		);
+		state.populate_from(pod_state);
+		state.commit()?;
+		Ok(state)
+	}
+
+	/// Execute the VM given ActionParams and tracer.
+	/// Returns amount of gas left and the output.
 	pub fn call<T: trace::VMTracer>(&mut self, params: ActionParams, vm_tracer: &mut T)
-		-> Result<(U256, Vec<u8>), EvmTestError>
+		-> Result<FinalizationResult, EvmTestError>
 	{
 		let genesis = self.spec.genesis_header();
-		let mut state = state::State::from_existing(self.state_db.boxed_clone(), *genesis.state_root(), self.spec.engine.account_start_nonce(0), self.factories.clone())
-			.map_err(EvmTestError::Trie)?;
 		let info = client::EnvInfo {
 			number: genesis.number(),
 			author: *genesis.author(),
@@ -103,15 +177,71 @@ impl EvmTestClient {
 		let mut substate = state::Substate::new();
 		let mut tracer = trace::NoopTracer;
 		let mut output = vec![];
-		let mut executive = executive::Executive::new(&mut state, &info, &*self.spec.engine);
-		let (gas_left, _) = executive.call(
+		let mut executive = executive::Executive::new(&mut self.state, &info, &*self.spec.engine);
+		executive.call(
 			params,
 			&mut substate,
 			util::BytesRef::Flexible(&mut output),
 			&mut tracer,
 			vm_tracer,
-		).map_err(EvmTestError::Evm)?;
+		).map_err(EvmTestError::Evm)
+	}
 
-		Ok((gas_left, output))
+	/// Executes a SignedTransaction within context of the provided state and `EnvInfo`.
+	/// Returns the state root, gas left and the output.
+	pub fn transact<T: trace::VMTracer>(
+		&mut self,
+		env_info: &client::EnvInfo,
+		transaction: transaction::SignedTransaction,
+		vm_tracer: T,
+	) -> TransactResult {
+		let initial_gas = transaction.gas;
+		// Verify transaction
+		let is_ok = transaction.verify_basic(true, None, env_info.number >= self.spec.engine.params().eip86_transition);
+		if let Err(error) = is_ok {
+			return TransactResult::Err {
+				state_root: *self.state.root(),
+				error,
+			};
+		}
+
+		// Apply transaction
+		let tracer = trace::NoopTracer;
+		let result = self.state.apply_with_tracing(&env_info, &*self.spec.engine, &transaction, tracer, vm_tracer);
+
+		match result {
+			Ok(result) => {
+				self.state.commit().ok();
+				TransactResult::Ok {
+					state_root: *self.state.root(),
+					gas_left: initial_gas - result.receipt.gas_used,
+					output: result.output
+				}
+			},
+			Err(error) => TransactResult::Err {
+				state_root: *self.state.root(),
+				error,
+			},
+		}
 	}
 }
+
+/// A result of applying transaction to the state.
+pub enum TransactResult {
+	/// Successful execution
+	Ok {
+		/// State root
+		state_root: H256,
+		/// Amount of gas left
+		gas_left: U256,
+		/// Output
+		output: Vec<u8>,
+	},
+	/// Transaction failed to run
+	Err {
+		/// State root
+		state_root: H256,
+		/// Execution error
+		error: ::error::Error,
+	},
+}

ethcore/src/client/mod.rs

@@ -27,7 +27,7 @@ mod client;
 pub use self::client::*;
 pub use self::config::{Mode, ClientConfig, DatabaseCompactionProfile, BlockChainConfig, VMType};
 pub use self::error::Error;
-pub use self::evm_test_client::{EvmTestClient, EvmTestError};
+pub use self::evm_test_client::{EvmTestClient, EvmTestError, TransactResult};
 pub use self::test_client::{TestBlockChainClient, EachBlockWith};
 pub use self::chain_notify::ChainNotify;
 pub use self::traits::{BlockChainClient, MiningBlockChainClient, EngineClient};

ethcore/src/client/test_client.rs

@@ -33,7 +33,7 @@ use db::{NUM_COLUMNS, COL_STATE};
 use header::{Header as BlockHeader, BlockNumber};
 use filter::Filter;
 use log_entry::LocalizedLogEntry;
-use receipt::{Receipt, LocalizedReceipt};
+use receipt::{Receipt, LocalizedReceipt, TransactionOutcome};
 use blockchain::extras::BlockReceipts;
 use error::{ImportResult, Error as EthcoreError};
 use evm::{Factory as EvmFactory, VMType, Schedule};
@@ -486,10 +486,6 @@ impl BlockChainClient for TestBlockChainClient {
 		self.receipts.read().get(&id).cloned()
 	}
 
-	fn blocks_with_bloom(&self, _bloom: &H2048, _from_block: BlockId, _to_block: BlockId) -> Option<Vec<BlockNumber>> {
-		unimplemented!();
-	}
-
 	fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry> {
 		let mut logs = self.logs.read().clone();
 		let len = logs.len();
@@ -598,7 +594,7 @@ impl BlockChainClient for TestBlockChainClient {
 		// starts with 'f' ?
 		if *hash > H256::from("f000000000000000000000000000000000000000000000000000000000000000") {
 			let receipt = BlockReceipts::new(vec![Receipt::new(
-				Some(H256::zero()),
+				TransactionOutcome::StateRoot(H256::zero()),
 				U256::zero(),
 				vec![])]);
 			let mut rlp = RlpStream::new();

ethcore/src/client/traits.rs

@@ -33,7 +33,7 @@ use trace::LocalizedTrace;
 use transaction::{LocalizedTransaction, PendingTransaction, SignedTransaction};
 use verification::queue::QueueInfo as BlockQueueInfo;
 
-use util::{U256, Address, H256, H2048, Bytes, Itertools};
+use util::{U256, Address, H256, Bytes, Itertools};
 use util::hashdb::DBValue;
 
 use types::ids::*;
@@ -175,9 +175,6 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get the best block header.
 	fn best_block_header(&self) -> encoded::Header;
 
-	/// Returns numbers of blocks containing given bloom.
-	fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockId, to_block: BlockId) -> Option<Vec<BlockNumber>>;
-
 	/// Returns logs matching given filter.
 	fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry>;
 

ethcore/src/engines/authority_round/mod.rs

@@ -538,7 +538,9 @@ impl Engine for AuthorityRound {
 		let parent_hash = block.fields().header.parent_hash().clone();
 		::engines::common::push_last_hash(block, last_hashes.clone(), self, &parent_hash)?;
 
-		if !epoch_begin { return Ok(()) }
+		// with immediate transitions, we don't use the epoch mechanism anyway.
+		// the genesis is always considered an epoch, but we ignore it intentionally.
+		if self.immediate_transitions || !epoch_begin { return Ok(()) }
 
 		// genesis is never a new block, but might as well check.
 		let header = block.fields().header.clone();
@@ -705,6 +707,7 @@ impl Engine for AuthorityRound {
 
 		// apply immediate transitions.
 		if let Some(change) = self.validators.is_epoch_end(first, chain_head) {
+			let change = combine_proofs(chain_head.number(), &change, &[]);
 			return Some(change)
 		}
 

ethcore/src/engines/mod.rs

@@ -57,8 +57,8 @@ use ethkey::Signature;
 use util::*;
 
 /// Default EIP-210 contrat code.
-/// As defined in https://github.com/ethereum/EIPs/pull/210/commits/9df24a3714af42e3bf350265bdc75b486c909d7f#diff-e02a92c2fb96c1a1bfb05e4c6e2ef5daR49
-pub const DEFAULT_BLOCKHASH_CONTRACT: &'static str = "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";
+/// As defined in https://github.com/ethereum/EIPs/pull/210
+pub const DEFAULT_BLOCKHASH_CONTRACT: &'static str = "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";
 
 /// Voting errors.
 #[derive(Debug)]

ethcore/src/engines/null_engine.rs

@@ -62,6 +62,6 @@ impl Engine for NullEngine {
 	}
 
 	fn snapshot_components(&self) -> Option<Box<::snapshot::SnapshotComponents>> {
-		Some(Box::new(::snapshot::PowSnapshot(10000)))
+		Some(Box::new(::snapshot::PowSnapshot::new(10000, 10000)))
 	}
 }

ethcore/src/ethereum/ethash.rs

@@ -36,7 +36,11 @@ pub const PARITY_GAS_LIMIT_DETERMINANT: U256 = U256([37, 0, 0, 0]);
 
 /// Number of blocks in an ethash snapshot.
 // make dependent on difficulty incrment divisor?
-const SNAPSHOT_BLOCKS: u64 = 30000;
+const SNAPSHOT_BLOCKS: u64 = 5000;
+/// Maximum number of blocks allowed in an ethash snapshot.
+const MAX_SNAPSHOT_BLOCKS: u64 = 30000;
+
+const DEFAULT_EIP649_DELAY: u64 = 3_000_000;
 
 /// Ethash params.
 #[derive(Debug, PartialEq)]
@@ -99,6 +103,12 @@ pub struct EthashParams {
 	pub min_gas_price_transition: u64,
 	/// Do not alow transactions with lower gas price.
 	pub min_gas_price: U256,
+	/// EIP-649 transition block.
+	pub eip649_transition: u64,
+	/// EIP-649 bomb delay.
+	pub eip649_delay: u64,
+	/// EIP-649 base reward.
+	pub eip649_reward: Option<U256>,
 }
 
 impl From<ethjson::spec::EthashParams> for EthashParams {
@@ -133,6 +143,9 @@ impl From<ethjson::spec::EthashParams> for EthashParams {
 			max_gas_limit: p.max_gas_limit.map_or(U256::max_value(), Into::into),
 			min_gas_price_transition: p.min_gas_price_transition.map_or(u64::max_value(), Into::into),
 			min_gas_price: p.min_gas_price.map_or(U256::zero(), Into::into),
+			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),
 		}
 	}
 }
@@ -204,8 +217,10 @@ impl Engine for Arc<Ethash> {
 		} else if block_number < self.ethash_params.eip150_transition {
 			Schedule::new_homestead()
 		} else {
+			/// There's no max_code_size transition so we tie it to eip161abc
+			let max_code_size = if block_number >= self.ethash_params.eip161abc_transition { self.ethash_params.max_code_size as usize } else { usize::max_value() };
 			let mut schedule = Schedule::new_post_eip150(
-				self.ethash_params.max_code_size as usize,
+				max_code_size,
 				block_number >= self.ethash_params.eip160_transition,
 				block_number >= self.ethash_params.eip161abc_transition,
 				block_number >= self.ethash_params.eip161d_transition);
@@ -284,8 +299,13 @@ impl Engine for Arc<Ethash> {
 	/// Apply the block reward on finalisation of the block.
 	/// This assumes that all uncles are valid uncles (i.e. of at least one generation before the current).
 	fn on_close_block(&self, block: &mut ExecutedBlock) -> Result<(), Error> {
-		let reward = self.ethash_params.block_reward;
 		let fields = block.fields_mut();
+		let reward = if fields.header.number() >= self.ethash_params.eip649_transition {
+			self.ethash_params.eip649_reward.unwrap_or(self.ethash_params.block_reward)
+		} else {
+			self.ethash_params.block_reward
+		};
+
 		let eras_rounds = self.ethash_params.ecip1017_era_rounds;
 		let (eras, reward) = ecip1017_eras_block_reward(eras_rounds, reward, fields.header.number());
 
@@ -416,7 +436,7 @@ impl Engine for Arc<Ethash> {
 	}
 
 	fn snapshot_components(&self) -> Option<Box<::snapshot::SnapshotComponents>> {
-		Some(Box::new(::snapshot::PowSnapshot(SNAPSHOT_BLOCKS)))
+		Some(Box::new(::snapshot::PowSnapshot::new(SNAPSHOT_BLOCKS, MAX_SNAPSHOT_BLOCKS)))
 	}
 }
 
@@ -452,7 +472,7 @@ fn ecip1017_eras_block_reward(era_rounds: u64, mut reward: U256, block_number:u6
 #[cfg_attr(feature="dev", allow(wrong_self_convention))]
 impl Ethash {
 	fn calculate_difficulty(&self, header: &Header, parent: &Header) -> U256 {
-		const EXP_DIFF_PERIOD: u64 = 100000;
+		const EXP_DIFF_PERIOD: u64 = 100_000;
 		if header.number() == 0 {
 			panic!("Can't calculate genesis block difficulty");
 		}
@@ -502,7 +522,11 @@ impl Ethash {
 		target = max(min_difficulty, target);
 		if header.number() < self.ethash_params.bomb_defuse_transition {
 			if header.number() < self.ethash_params.ecip1010_pause_transition {
-				let period = ((parent.number() + 1) / EXP_DIFF_PERIOD) as usize;
+				let mut number = header.number();
+				if number >= self.ethash_params.eip649_transition {
+					number = number.saturating_sub(self.ethash_params.eip649_delay);
+				}
+				let period = (number / EXP_DIFF_PERIOD) as usize;
 				if period > 1 {
 					target = max(min_difficulty, target + (U256::from(1) << (period - 2)));
 				}

ethcore/src/ethereum/mod.rs

@@ -87,8 +87,11 @@ pub fn new_transition_test() -> Spec { load(None, include_bytes!("../../res/ethe
 /// Create a new Foundation Mainnet chain spec without genesis accounts.
 pub fn new_mainnet_like() -> Spec { load(None, include_bytes!("../../res/ethereum/frontier_like_test.json")) }
 
-/// Create a new Foundation Metropolis era spec.
-pub fn new_metropolis_test() -> Spec { load(None, include_bytes!("../../res/ethereum/metropolis_test.json")) }
+/// Create a new Foundation Byzantium era spec.
+pub fn new_byzantium_test() -> Spec { load(None, include_bytes!("../../res/ethereum/byzantium_test.json")) }
+
+/// Create a new Foundation Constantinople era spec.
+pub fn new_constantinople_test() -> Spec { load(None, include_bytes!("../../res/ethereum/constantinople_test.json")) }
 
 #[cfg(test)]
 mod tests {
@@ -151,6 +154,6 @@ mod tests {
 		new_eip161_test();
 		new_transition_test();
 		new_mainnet_like();
-		new_metropolis_test();
+		new_byzantium_test();
 	}
 }

ethcore/src/executive.rs

@@ -24,7 +24,7 @@ use evm::env_info::EnvInfo;
 use error::ExecutionError;
 use evm::{self, wasm, Factory, Ext, Finalize, CreateContractAddress, FinalizationResult, ReturnData, CleanDustMode};
 use externalities::*;
-use trace::{FlatTrace, Tracer, NoopTracer, ExecutiveTracer, VMTrace, VMTracer, ExecutiveVMTracer, NoopVMTracer};
+use trace::{self, FlatTrace, VMTrace, Tracer, VMTracer};
 use transaction::{Action, SignedTransaction};
 use crossbeam;
 pub use executed::{Executed, ExecutionResult};
@@ -64,17 +64,91 @@ pub fn contract_address(address_scheme: CreateContractAddress, sender: &Address,
 }
 
 /// Transaction execution options.
-#[derive(Default, Copy, Clone, PartialEq)]
-pub struct TransactOptions {
+#[derive(Copy, Clone, PartialEq)]
+pub struct TransactOptions<T, V> {
 	/// Enable call tracing.
-	pub tracing: bool,
+	pub tracer: T,
 	/// Enable VM tracing.
-	pub vm_tracing: bool,
+	pub vm_tracer: V,
 	/// Check transaction nonce before execution.
 	pub check_nonce: bool,
+	/// Records the output from init contract calls.
+	pub output_from_init_contract: bool,
 }
 
-pub fn executor<E>(engine: &E, vm_factory: &Factory, params: &ActionParams) 
+impl<T, V> TransactOptions<T, V> {
+	/// Create new `TransactOptions` with given tracer and VM tracer.
+	pub fn new(tracer: T, vm_tracer: V) -> Self {
+		TransactOptions {
+			tracer,
+			vm_tracer,
+			check_nonce: true,
+			output_from_init_contract: false,
+		}
+	}
+
+	/// Disables the nonce check
+	pub fn dont_check_nonce(mut self) -> Self {
+		self.check_nonce = false;
+		self
+	}
+
+	/// Saves the output from contract creation.
+	pub fn save_output_from_contract(mut self) -> Self {
+		self.output_from_init_contract = true;
+		self
+	}
+}
+
+impl TransactOptions<trace::ExecutiveTracer, trace::ExecutiveVMTracer> {
+	/// Creates new `TransactOptions` with default tracing and VM tracing.
+	pub fn with_tracing_and_vm_tracing() -> Self {
+		TransactOptions {
+			tracer: trace::ExecutiveTracer::default(),
+			vm_tracer: trace::ExecutiveVMTracer::toplevel(),
+			check_nonce: true,
+			output_from_init_contract: false,
+		}
+	}
+}
+
+impl TransactOptions<trace::ExecutiveTracer, trace::NoopVMTracer> {
+	/// Creates new `TransactOptions` with default tracing and no VM tracing.
+	pub fn with_tracing() -> Self {
+		TransactOptions {
+			tracer: trace::ExecutiveTracer::default(),
+			vm_tracer: trace::NoopVMTracer,
+			check_nonce: true,
+			output_from_init_contract: false,
+		}
+	}
+}
+
+impl TransactOptions<trace::NoopTracer, trace::ExecutiveVMTracer> {
+	/// Creates new `TransactOptions` with no tracing and default VM tracing.
+	pub fn with_vm_tracing() -> Self {
+		TransactOptions {
+			tracer: trace::NoopTracer,
+			vm_tracer: trace::ExecutiveVMTracer::toplevel(),
+			check_nonce: true,
+			output_from_init_contract: false,
+		}
+	}
+}
+
+impl TransactOptions<trace::NoopTracer, trace::NoopVMTracer> {
+	/// Creates new `TransactOptions` without any tracing.
+	pub fn with_no_tracing() -> Self {
+		TransactOptions {
+			tracer: trace::NoopTracer,
+			vm_tracer: trace::NoopVMTracer,
+			check_nonce: true,
+			output_from_init_contract: false,
+		}
+	}
+}
+
+pub fn executor<E>(engine: &E, vm_factory: &Factory, params: &ActionParams)
 	-> Box<evm::Evm> where E: Engine + ?Sized
 {
 	if engine.supports_wasm() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
@@ -135,27 +209,21 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 	}
 
 	/// This function should be used to execute transaction.
-	pub fn transact(&'a mut self, t: &SignedTransaction, options: TransactOptions) -> Result<Executed, ExecutionError> {
-		let check = options.check_nonce;
-		match options.tracing {
-			true => match options.vm_tracing {
-				true => self.transact_with_tracer(t, check, ExecutiveTracer::default(), ExecutiveVMTracer::toplevel()),
-				false => self.transact_with_tracer(t, check, ExecutiveTracer::default(), NoopVMTracer),
-			},
-			false => match options.vm_tracing {
-				true => self.transact_with_tracer(t, check, NoopTracer, ExecutiveVMTracer::toplevel()),
-				false => self.transact_with_tracer(t, check, NoopTracer, NoopVMTracer),
-			},
-		}
+	pub fn transact<T, V>(&'a mut self, t: &SignedTransaction, options: TransactOptions<T, V>)
+		-> Result<Executed, ExecutionError> where T: Tracer, V: VMTracer,
+	{
+		self.transact_with_tracer(t, options.check_nonce, options.output_from_init_contract,  options.tracer, options.vm_tracer)
 	}
 
 	/// Execute a transaction in a "virtual" context.
 	/// This will ensure the caller has enough balance to execute the desired transaction.
 	/// Used for extra-block executions for things like consensus contracts and RPCs
-	pub fn transact_virtual(&'a mut self, t: &SignedTransaction, options: TransactOptions) -> Result<Executed, ExecutionError> {
+	pub fn transact_virtual<T, V>(&'a mut self, t: &SignedTransaction, options: TransactOptions<T, V>)
+		-> Result<Executed, ExecutionError> where T: Tracer, V: VMTracer,
+	{
 		let sender = t.sender();
 		let balance = self.state.balance(&sender)?;
-		let needed_balance = t.value + t.gas * t.gas_price;
+		let needed_balance = t.value.saturating_add(t.gas.saturating_mul(t.gas_price));
 		if balance < needed_balance {
 			// give the sender a sufficient balance
 			self.state.add_balance(&sender, &(needed_balance - balance), CleanupMode::NoEmpty)?;
@@ -165,10 +233,11 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 	}
 
 	/// Execute transaction/call with tracing enabled
-	pub fn transact_with_tracer<T, V>(
+	fn transact_with_tracer<T, V>(
 		&'a mut self,
 		t: &SignedTransaction,
 		check_nonce: bool,
+		output_from_create: bool,
 		mut tracer: T,
 		mut vm_tracer: V
 	) -> Result<Executed, ExecutionError> where T: Tracer, V: VMTracer {
@@ -216,7 +285,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		let mut substate = Substate::new();
 
 		// NOTE: there can be no invalid transactions from this point.
-		if !t.is_unsigned() {
+		if !schedule.eip86 || !t.is_unsigned() {
 			self.state.inc_nonce(&sender)?;
 		}
 		self.state.sub_balance(&sender, &U256::from(gas_cost), &mut substate.to_cleanup_mode(&schedule))?;
@@ -237,7 +306,8 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 					data: None,
 					call_type: CallType::None,
 				};
-				(self.create(params, &mut substate, &mut tracer, &mut vm_tracer), vec![])
+				let mut out = if output_from_create { Some(vec![]) } else { None };
+				(self.create(params, &mut substate, &mut out, &mut tracer, &mut vm_tracer), out.unwrap_or_else(Vec::new))
 			},
 			Action::Call(ref address) => {
 				let params = ActionParams {
@@ -259,7 +329,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		};
 
 		// finalize here!
-		Ok(self.finalize(t, substate, result, output, tracer.traces(), vm_tracer.drain())?)
+		Ok(self.finalize(t, substate, result, output, tracer.drain(), vm_tracer.drain())?)
 	}
 
 	fn exec_vm<T, V>(
@@ -307,12 +377,12 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		mut output: BytesRef,
 		tracer: &mut T,
 		vm_tracer: &mut V
-	) -> evm::Result<(U256, ReturnData)> where T: Tracer, V: VMTracer {
+	) -> evm::Result<FinalizationResult> where T: Tracer, V: VMTracer {
 
-		trace!("Executive::call(params={:?}) self.env_info={:?}", params, self.info);
+		trace!("Executive::call(params={:?}) self.env_info={:?}, static={}", params, self.info, self.static_flag);
 		if (params.call_type == CallType::StaticCall ||
-				((params.call_type == CallType::Call || params.call_type == CallType::DelegateCall) &&
-				 self.static_flag))
+				((params.call_type == CallType::Call) &&
+				self.static_flag))
 			&& params.value.value() > 0.into() {
 			return Err(evm::Error::MutableCallInStaticContext);
 		}
@@ -342,13 +412,19 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 
 			let cost = builtin.cost(data);
 			if cost <= params.gas {
-				if let Err(e) = builtin.execute(data, &mut output) {
+				let mut builtin_out_buffer = Vec::new();
+				let result = {
+					let mut builtin_output = BytesRef::Flexible(&mut builtin_out_buffer);
+					builtin.execute(data, &mut builtin_output)
+				};
+				if let Err(e) = result {
 					self.state.revert_to_checkpoint();
 					let evm_err: evm::evm::Error = e.into();
 					tracer.trace_failed_call(trace_info, vec![], evm_err.clone().into());
 					Err(evm_err)
 				} else {
 					self.state.discard_checkpoint();
+					output.write(0, &builtin_out_buffer);
 
 					// trace only top level calls to builtins to avoid DDoS attacks
 					if self.depth == 0 {
@@ -365,7 +441,12 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 						);
 					}
 
-					Ok((params.gas - cost, ReturnData::empty()))
+					let out_len = builtin_out_buffer.len();
+					Ok(FinalizationResult {
+						gas_left: params.gas - cost,
+						return_data: ReturnData::new(builtin_out_buffer, 0, out_len),
+						apply_state: true,
+					})
 				}
 			} else {
 				// just drain the whole gas
@@ -397,7 +478,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 
 				trace!(target: "executive", "res={:?}", res);
 
-				let traces = subtracer.traces();
+				let traces = subtracer.drain();
 				match res {
 					Ok(ref res) => tracer.trace_call(
 						trace_info,
@@ -412,13 +493,17 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 
 				self.enact_result(&res, substate, unconfirmed_substate);
 				trace!(target: "executive", "enacted: substate={:?}\n", substate);
-				res.map(|r| (r.gas_left, r.return_data))
+				res
 			} else {
 				// otherwise it's just a basic transaction, only do tracing, if necessary.
 				self.state.discard_checkpoint();
 
 				tracer.trace_call(trace_info, U256::zero(), trace_output, vec![]);
-				Ok((params.gas, ReturnData::empty()))
+				Ok(FinalizationResult {
+					gas_left: params.gas,
+					return_data: ReturnData::empty(),
+					apply_state: true,
+				})
 			}
 		}
 	}
@@ -430,15 +515,21 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		&mut self,
 		params: ActionParams,
 		substate: &mut Substate,
+		output: &mut Option<Bytes>,
 		tracer: &mut T,
 		vm_tracer: &mut V,
-	) -> evm::Result<(U256, ReturnData)> where T: Tracer, V: VMTracer {
+	) -> evm::Result<FinalizationResult> where T: Tracer, V: VMTracer {
 
-		let scheme = self.engine.create_address_scheme(self.info.number);
-		if scheme != CreateContractAddress::FromSenderAndNonce && self.state.exists_and_has_code(&params.address)? {
+		// EIP-684: If a contract creation is attempted, due to either a creation transaction or the
+		// CREATE (or future CREATE2) opcode, and the destination address already has either
+		// nonzero nonce, or nonempty code, then the creation throws immediately, with exactly
+		// the same behavior as would arise if the first byte in the init code were an invalid
+		// opcode. This applies retroactively starting from genesis.
+		if self.state.exists_and_has_code_or_nonce(&params.address)? {
 			return Err(evm::Error::OutOfGas);
 		}
 
+		trace!("Executive::create(params={:?}) self.env_info={:?}, static={}", params, self.info, self.static_flag);
 		if params.call_type == CallType::StaticCall || self.static_flag {
 			let trace_info = tracer.prepare_trace_create(&params);
 			tracer.trace_failed_create(trace_info, vec![], evm::Error::MutableCallInStaticContext.into());
@@ -471,7 +562,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		let mut subvmtracer = vm_tracer.prepare_subtrace(params.code.as_ref().expect("two ways into create (Externalities::create and Executive::transact_with_tracer); both place `Some(...)` `code` in `params`; qed"));
 
 		let res = {
-			self.exec_vm(params, &mut unconfirmed_substate, OutputPolicy::InitContract(trace_output.as_mut()), &mut subtracer, &mut subvmtracer)
+			self.exec_vm(params, &mut unconfirmed_substate, OutputPolicy::InitContract(output.as_mut().or(trace_output.as_mut())), &mut subtracer, &mut subvmtracer)
 		};
 
 		vm_tracer.done_subtrace(subvmtracer);
@@ -480,15 +571,15 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 			Ok(ref res) => tracer.trace_create(
 				trace_info,
 				gas - res.gas_left,
-				trace_output,
+				trace_output.map(|data| output.as_ref().map(|out| out.to_vec()).unwrap_or(data)),
 				created,
-				subtracer.traces()
+				subtracer.drain()
 			),
-			Err(ref e) => tracer.trace_failed_create(trace_info, subtracer.traces(), e.into())
+			Err(ref e) => tracer.trace_failed_create(trace_info, subtracer.drain(), e.into())
 		};
 
 		self.enact_result(&res, substate, unconfirmed_substate);
-		res.map(|r| (r.gas_left, r.return_data))
+		res
 	}
 
 	/// Finalizes the transaction (does refunds and suicides).
@@ -496,7 +587,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		&mut self,
 		t: &SignedTransaction,
 		mut substate: Substate,
-		result: evm::Result<(U256, ReturnData)>,
+		result: evm::Result<FinalizationResult>,
 		output: Bytes,
 		trace: Vec<FlatTrace>,
 		vm_trace: Option<VMTrace>
@@ -510,7 +601,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 		let refunds_bound = sstore_refunds + suicide_refunds;
 
 		// real ammount to refund
-		let gas_left_prerefund = match result { Ok((x, _)) => x, _ => 0.into() };
+		let gas_left_prerefund = match result { Ok(FinalizationResult{ gas_left, .. }) => gas_left, _ => 0.into() };
 		let refunded = cmp::min(refunds_bound, (t.gas - gas_left_prerefund) >> 1);
 		let gas_left = gas_left_prerefund + refunded;
 
@@ -554,9 +645,9 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 					state_diff: None,
 				})
 			},
-			_ => {
+			Ok(r) => {
 				Ok(Executed {
-					exception: None,
+					exception: if r.apply_state { None } else { Some(evm::Error::Reverted) },
 					gas: t.gas,
 					gas_used: gas_used,
 					refunded: refunded,
@@ -582,6 +673,8 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
 				| Err(evm::Error::Wasm {..})
 				| Err(evm::Error::OutOfStack {..})
 				| Err(evm::Error::MutableCallInStaticContext)
+				| Err(evm::Error::OutOfBounds)
+				| Err(evm::Error::Reverted)
 				| Ok(FinalizationResult { apply_state: false, .. }) => {
 					self.state.revert_to_checkpoint();
 			},
@@ -639,9 +732,9 @@ mod tests {
 		let engine = TestEngine::new(0);
 		let mut substate = Substate::new();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer).unwrap()
+			ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};
 
 		assert_eq!(gas_left, U256::from(79_975));
@@ -697,9 +790,9 @@ mod tests {
 		let engine = TestEngine::new(0);
 		let mut substate = Substate::new();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer).unwrap()
+			ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};
 
 		assert_eq!(gas_left, U256::from(62_976));
@@ -755,7 +848,7 @@ mod tests {
 		let mut tracer = ExecutiveTracer::default();
 		let mut vm_tracer = ExecutiveVMTracer::toplevel();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
 			let output = BytesRef::Fixed(&mut[0u8;0]);
 			ex.call(params, &mut substate, output, &mut tracer, &mut vm_tracer).unwrap()
@@ -794,7 +887,7 @@ mod tests {
 			}),
 		}];
 
-		assert_eq!(tracer.traces(), expected_trace);
+		assert_eq!(tracer.drain(), expected_trace);
 
 		let expected_vm_trace = VMTrace {
 			parent_step: 0,
@@ -864,9 +957,9 @@ mod tests {
 		let mut tracer = ExecutiveTracer::default();
 		let mut vm_tracer = ExecutiveVMTracer::toplevel();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params.clone(), &mut substate, &mut tracer, &mut vm_tracer).unwrap()
+			ex.create(params.clone(), &mut substate, &mut None, &mut tracer, &mut vm_tracer).unwrap()
 		};
 
 		assert_eq!(gas_left, U256::from(96_776));
@@ -887,7 +980,7 @@ mod tests {
 			}),
 		}];
 
-		assert_eq!(tracer.traces(), expected_trace);
+		assert_eq!(tracer.drain(), expected_trace);
 
 		let expected_vm_trace = VMTrace {
 			parent_step: 0,
@@ -949,9 +1042,9 @@ mod tests {
 		let engine = TestEngine::new(0);
 		let mut substate = Substate::new();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer).unwrap()
+			ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};
 
 		assert_eq!(gas_left, U256::from(62_976));
@@ -1002,7 +1095,7 @@ mod tests {
 
 		{
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer).unwrap();
+			ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap();
 		}
 
 		assert_eq!(substate.contracts_created.len(), 1);
@@ -1060,7 +1153,7 @@ mod tests {
 		let engine = TestEngine::new(0);
 		let mut substate = Substate::new();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
 			ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};
@@ -1104,7 +1197,7 @@ mod tests {
 		let engine = TestEngine::new(0);
 		let mut substate = Substate::new();
 
-		let (gas_left, _) = {
+		let FinalizationResult { gas_left, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
 			ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};
@@ -1138,7 +1231,7 @@ mod tests {
 
 		let executed = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			let opts = TransactOptions { check_nonce: true, tracing: false, vm_tracing: false };
+			let opts = TransactOptions::with_no_tracing();
 			ex.transact(&t, opts).unwrap()
 		};
 
@@ -1175,7 +1268,7 @@ mod tests {
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			let opts = TransactOptions { check_nonce: true, tracing: false, vm_tracing: false };
+			let opts = TransactOptions::with_no_tracing();
 			ex.transact(&t, opts)
 		};
 
@@ -1208,7 +1301,7 @@ mod tests {
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			let opts = TransactOptions { check_nonce: true, tracing: false, vm_tracing: false };
+			let opts = TransactOptions::with_no_tracing();
 			ex.transact(&t, opts)
 		};
 
@@ -1241,7 +1334,7 @@ mod tests {
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			let opts = TransactOptions { check_nonce: true, tracing: false, vm_tracing: false };
+			let opts = TransactOptions::with_no_tracing();
 			ex.transact(&t, opts)
 		};
 
@@ -1275,7 +1368,7 @@ mod tests {
 
 		let result = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
-			ex.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer)
+			ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer)
 		};
 
 		match result {
@@ -1305,11 +1398,11 @@ mod tests {
 		let mut state = get_temp_state_with_factory(factory);
 		state.add_balance(&sender, &U256::from_str("152d02c7e14af68000000").unwrap(), CleanupMode::NoEmpty).unwrap();
 		let info = EnvInfo::default();
-		let engine = TestEngine::new_metropolis();
+		let engine = TestEngine::new_byzantium();
 		let mut substate = Substate::new();
 
 		let mut output = [0u8; 14];
-		let (result, _) = {
+		let FinalizationResult { gas_left: result, .. } = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
 			ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer).unwrap()
 		};

ethcore/src/externalities.rs

@@ -23,6 +23,7 @@ use evm::env_info::EnvInfo;
 use executive::*;
 use evm::{self, Schedule, Ext, ContractCreateResult, MessageCallResult, CreateContractAddress, ReturnData};
 use evm::CallType;
+use evm::FinalizationResult;
 use transaction::UNSIGNED_SENDER;
 use trace::{Tracer, VMTracer};
 
@@ -121,6 +122,10 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 		}
 	}
 
+	fn is_static(&self) -> bool {
+		return self.static_flag
+	}
+
 	fn exists(&self, address: &Address) -> evm::Result<bool> {
 		self.state.exists(address).map_err(Into::into)
 	}
@@ -210,21 +215,27 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 			call_type: CallType::None,
 		};
 
-		if 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
+		if !self.static_flag {
+			if !self.schedule.eip86 || 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
+				}
 			}
 		}
 		let mut ex = Executive::from_parent(self.state, self.env_info, self.engine, self.depth, self.static_flag);
 
 		// TODO: handle internal error separately
-		match ex.create(params, self.substate, self.tracer, self.vm_tracer) {
-			Ok((gas_left, _)) => {
+		match ex.create(params, self.substate, &mut None, self.tracer, self.vm_tracer) {
+			Ok(FinalizationResult{ gas_left, apply_state: true, .. }) => {
 				self.substate.contracts_created.push(address.clone());
 				ContractCreateResult::Created(address, gas_left)
 			},
-			_ => ContractCreateResult::Failed
+			Ok(FinalizationResult{ gas_left, apply_state: false, return_data }) => {
+				ContractCreateResult::Reverted(gas_left, return_data)
+			},
+			Err(evm::Error::MutableCallInStaticContext) => ContractCreateResult::FailedInStaticCall,
+			_ => ContractCreateResult::Failed,
 		}
 	}
 
@@ -269,7 +280,8 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 		let mut ex = Executive::from_parent(self.state, self.env_info, self.engine, self.depth, self.static_flag);
 
 		match ex.call(params, self.substate, BytesRef::Fixed(output), self.tracer, self.vm_tracer) {
-			Ok((gas_left, return_data)) => MessageCallResult::Success(gas_left, return_data),
+			Ok(FinalizationResult{ gas_left, return_data, apply_state: true }) => MessageCallResult::Success(gas_left, return_data),
+			Ok(FinalizationResult{ gas_left, return_data, apply_state: false }) => MessageCallResult::Reverted(gas_left, return_data),
 			_ => MessageCallResult::Failed
 		}
 	}
@@ -283,7 +295,7 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 	}
 
 	#[cfg_attr(feature="dev", allow(match_ref_pats))]
-	fn ret(mut self, gas: &U256, data: &ReturnData) -> evm::Result<U256>
+	fn ret(mut self, gas: &U256, data: &ReturnData, apply_state: bool) -> evm::Result<U256>
 		where Self: Sized {
 		let handle_copy = |to: &mut Option<&mut Bytes>| {
 			to.as_mut().map(|b| **b = data.to_vec());
@@ -303,7 +315,7 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 				vec.extend_from_slice(&*data);
 				Ok(*gas)
 			},
-			OutputPolicy::InitContract(ref mut copy) => {
+			OutputPolicy::InitContract(ref mut copy) if apply_state => {
 				let return_cost = U256::from(data.len()) * U256::from(self.schedule.create_data_gas);
 				if return_cost > *gas || data.len() > self.schedule.create_data_limit {
 					return match self.schedule.exceptional_failed_code_deposit {
@@ -311,12 +323,13 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 						false => Ok(*gas)
 					}
 				}
-
 				handle_copy(copy);
-
 				self.state.init_code(&self.origin_info.address, data.to_vec())?;
 				Ok(*gas - return_cost)
-			}
+			},
+			OutputPolicy::InitContract(_) => {
+				Ok(*gas)
+			},
 		}
 	}
 

ethcore/src/json_tests/chain.rs

@@ -14,17 +14,15 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use super::test_common::*;
-use client::{BlockChainClient, Client, ClientConfig};
+use std::sync::Arc;
+use client::{EvmTestClient, BlockChainClient, Client, ClientConfig};
 use block::Block;
-use ethereum;
-use tests::helpers::*;
 use spec::Genesis;
 use ethjson;
 use miner::Miner;
 use io::IoChannel;
 
-pub fn json_chain_test(json_data: &[u8], era: ChainEra) -> Vec<String> {
+pub fn json_chain_test(json_data: &[u8]) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::blockchain::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
@@ -42,15 +40,16 @@ pub fn json_chain_test(json_data: &[u8], era: ChainEra) -> Vec<String> {
 			flush!("   - {}...", name);
 
 			let spec = {
+				let mut spec = match EvmTestClient::spec_from_json(&blockchain.network) {
+					Some(spec) => (*spec).clone(),
+					None => {
+						println!("   - {} | {:?} Ignoring tests because of missing spec", name, blockchain.network);
+						continue;
+					}
+				};
+
 				let genesis = Genesis::from(blockchain.genesis());
 				let state = From::from(blockchain.pre_state.clone());
-				let mut spec = match era {
-					ChainEra::Frontier => ethereum::new_frontier_test(),
-					ChainEra::Homestead => ethereum::new_homestead_test(),
-					ChainEra::Eip150 => ethereum::new_eip150_test(),
-					ChainEra::_Eip161 => ethereum::new_eip161_test(),
-					ChainEra::TransitionTest => ethereum::new_transition_test(),
-				};
 				spec.set_genesis_state(state).expect("Failed to overwrite genesis state");
 				spec.overwrite_genesis_params(genesis);
 				assert!(spec.is_state_root_valid());
@@ -86,67 +85,69 @@ pub fn json_chain_test(json_data: &[u8], era: ChainEra) -> Vec<String> {
 	failed
 }
 
-mod frontier_era_tests {
-	use tests::helpers::*;
+mod block_tests {
 	use super::json_chain_test;
 
 	fn do_json_test(json_data: &[u8]) -> Vec<String> {
-		json_chain_test(json_data, ChainEra::Frontier)
+		json_chain_test(json_data)
 	}
 
 	declare_test!{BlockchainTests_bcBlockGasLimitTest, "BlockchainTests/bcBlockGasLimitTest"}
-	declare_test!{BlockchainTests_bcForkBlockTest, "BlockchainTests/bcForkBlockTest"}
+	declare_test!{BlockchainTests_bcExploitTest, "BlockchainTests/bcExploitTest"}
+	declare_test!{BlockchainTests_bcForgedTest, "BlockchainTests/bcForgedTest"}
 	declare_test!{BlockchainTests_bcForkStressTest, "BlockchainTests/bcForkStressTest"}
-	declare_test!{BlockchainTests_bcForkUncle, "BlockchainTests/bcForkUncle"}
 	declare_test!{BlockchainTests_bcGasPricerTest, "BlockchainTests/bcGasPricerTest"}
 	declare_test!{BlockchainTests_bcInvalidHeaderTest, "BlockchainTests/bcInvalidHeaderTest"}
-	// TODO [ToDr] Ignored because of incorrect JSON (https://github.com/ethereum/tests/pull/113)
-	declare_test!{ignore => BlockchainTests_bcInvalidRLPTest, "BlockchainTests/bcInvalidRLPTest"}
 	declare_test!{BlockchainTests_bcMultiChainTest, "BlockchainTests/bcMultiChainTest"}
-	declare_test!{BlockchainTests_bcRPC_API_Test, "BlockchainTests/bcRPC_API_Test"}
-	declare_test!{BlockchainTests_bcStateTest, "BlockchainTests/bcStateTest"}
+	declare_test!{BlockchainTests_bcRandomBlockhashTest, "BlockchainTests/bcRandomBlockhashTest"}
 	declare_test!{BlockchainTests_bcTotalDifficultyTest, "BlockchainTests/bcTotalDifficultyTest"}
 	declare_test!{BlockchainTests_bcUncleHeaderValiditiy, "BlockchainTests/bcUncleHeaderValiditiy"}
 	declare_test!{BlockchainTests_bcUncleTest, "BlockchainTests/bcUncleTest"}
 	declare_test!{BlockchainTests_bcValidBlockTest, "BlockchainTests/bcValidBlockTest"}
 	declare_test!{BlockchainTests_bcWalletTest, "BlockchainTests/bcWalletTest"}
 
-	declare_test!{BlockchainTests_RandomTests_bl10251623GO, "BlockchainTests/RandomTests/bl10251623GO"}
-	declare_test!{BlockchainTests_RandomTests_bl201507071825GO, "BlockchainTests/RandomTests/bl201507071825GO"}
+	declare_test!{BlockchainTests_GeneralStateTest_stAttackTest, "BlockchainTests/GeneralStateTests/stAttackTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stBadOpcodeTest, "BlockchainTests/GeneralStateTests/stBadOpcode/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stCallCodes, "BlockchainTests/GeneralStateTests/stCallCodes/"}
+	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_stCreateTest, "BlockchainTests/GeneralStateTests/stCreateTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stDelegatecallTestHomestead, "BlockchainTests/GeneralStateTests/stDelegatecallTestHomestead/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stEIP150singleCodeGasPrices, "BlockchainTests/GeneralStateTests/stEIP150singleCodeGasPrices/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stEIP150Specific, "BlockchainTests/GeneralStateTests/stEIP150Specific/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stEIP158Specific, "BlockchainTests/GeneralStateTests/stEIP158Specific/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stExample, "BlockchainTests/GeneralStateTests/stExample/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stHomesteadSpecific, "BlockchainTests/GeneralStateTests/stHomesteadSpecific/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stInitCodeTest, "BlockchainTests/GeneralStateTests/stInitCodeTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stLogTests, "BlockchainTests/GeneralStateTests/stLogTests/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stMemExpandingEIP150Calls, "BlockchainTests/GeneralStateTests/stMemExpandingEIP150Calls/"}
+	declare_test!{heavy => BlockchainTests_GeneralStateTest_stMemoryStressTest, "BlockchainTests/GeneralStateTests/stMemoryStressTest/"}
+	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!{heavy => BlockchainTests_GeneralStateTest_stQuadraticComplexityTest, "BlockchainTests/GeneralStateTests/stQuadraticComplexityTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stRandom, "BlockchainTests/GeneralStateTests/stRandom/"}
+	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_stSolidityTest, "BlockchainTests/GeneralStateTests/stSolidityTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stSpecialTest, "BlockchainTests/GeneralStateTests/stSpecialTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stStackTests, "BlockchainTests/GeneralStateTests/stStackTests/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stStaticCall, "BlockchainTests/GeneralStateTests/stStaticCall/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stSystemOperationsTest, "BlockchainTests/GeneralStateTests/stSystemOperationsTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stTransactionTest, "BlockchainTests/GeneralStateTests/stTransactionTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stTransitionTest, "BlockchainTests/GeneralStateTests/stTransitionTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stWalletTest, "BlockchainTests/GeneralStateTests/stWalletTest/"}
+	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_TransitionTests_bcEIP158ToByzantium, "BlockchainTests/TransitionTests/bcEIP158ToByzantium/"}
+	declare_test!{BlockchainTests_TransitionTests_bcFrontierToHomestead, "BlockchainTests/TransitionTests/bcFrontierToHomestead/"}
+	declare_test!{BlockchainTests_TransitionTests_bcHomesteadToDao, "BlockchainTests/TransitionTests/bcHomesteadToDao/"}
+	declare_test!{BlockchainTests_TransitionTests_bcHomesteadToEIP150, "BlockchainTests/TransitionTests/bcHomesteadToEIP150/"}
 }
 
-mod transition_tests {
-	use tests::helpers::*;
-	use super::json_chain_test;
-
-	fn do_json_test(json_data: &[u8]) -> Vec<String> {
-		json_chain_test(json_data, ChainEra::TransitionTest)
-	}
-
-	declare_test!{BlockchainTests_TestNetwork_bcSimpleTransitionTest, "BlockchainTests/TestNetwork/bcSimpleTransitionTest"}
-	declare_test!{BlockchainTests_TestNetwork_bcTheDaoTest, "BlockchainTests/TestNetwork/bcTheDaoTest"}
-	declare_test!{BlockchainTests_TestNetwork_bcEIP150Test, "BlockchainTests/TestNetwork/bcEIP150Test"}
-}
-
-mod eip150_blockchain_tests {
-	use tests::helpers::*;
-	use super::json_chain_test;
-
-	fn do_json_test(json_data: &[u8]) -> Vec<String> {
-		json_chain_test(json_data, ChainEra::Eip150)
-	}
-
-	declare_test!{BlockchainTests_EIP150_bcBlockGasLimitTest, "BlockchainTests/EIP150/bcBlockGasLimitTest"}
-	declare_test!{BlockchainTests_EIP150_bcForkStressTest, "BlockchainTests/EIP150/bcForkStressTest"}
-	declare_test!{BlockchainTests_EIP150_bcGasPricerTest, "BlockchainTests/EIP150/bcGasPricerTest"}
-	declare_test!{BlockchainTests_EIP150_bcInvalidHeaderTest, "BlockchainTests/EIP150/bcInvalidHeaderTest"}
-	declare_test!{BlockchainTests_EIP150_bcInvalidRLPTest, "BlockchainTests/EIP150/bcInvalidRLPTest"}
-	declare_test!{BlockchainTests_EIP150_bcMultiChainTest, "BlockchainTests/EIP150/bcMultiChainTest"}
-	declare_test!{BlockchainTests_EIP150_bcRPC_API_Test, "BlockchainTests/EIP150/bcRPC_API_Test"}
-	declare_test!{BlockchainTests_EIP150_bcStateTest, "BlockchainTests/EIP150/bcStateTest"}
-	declare_test!{BlockchainTests_EIP150_bcTotalDifficultyTest, "BlockchainTests/EIP150/bcTotalDifficultyTest"}
-	declare_test!{BlockchainTests_EIP150_bcUncleHeaderValiditiy, "BlockchainTests/EIP150/bcUncleHeaderValiditiy"}
-	declare_test!{BlockchainTests_EIP150_bcUncleTest, "BlockchainTests/EIP150/bcUncleTest"}
-	declare_test!{BlockchainTests_EIP150_bcValidBlockTest, "BlockchainTests/EIP150/bcValidBlockTest"}
-	declare_test!{BlockchainTests_EIP150_bcWalletTest, "BlockchainTests/EIP150/bcWalletTest"}
-}

ethcore/src/json_tests/executive.rs

@@ -28,6 +28,7 @@ use tests::helpers::*;
 use ethjson;
 use trace::{Tracer, NoopTracer};
 use trace::{VMTracer, NoopVMTracer};
+use rlp::RlpStream;
 
 #[derive(Debug, PartialEq, Clone)]
 struct CallCreate {
@@ -158,8 +159,8 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for TestExt<'a, T, V, B, E>
 		self.ext.log(topics, data)
 	}
 
-	fn ret(self, gas: &U256, data: &ReturnData) -> Result<U256, evm::Error> {
-		self.ext.ret(gas, data)
+	fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> Result<U256, evm::Error> {
+		self.ext.ret(gas, data, apply_state)
 	}
 
 	fn suicide(&mut self, refund_address: &Address) -> evm::Result<()> {
@@ -178,6 +179,10 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for TestExt<'a, T, V, B, E>
 		0
 	}
 
+	fn is_static(&self) -> bool {
+		false
+	}
+
 	fn inc_sstore_clears(&mut self) {
 		self.ext.inc_sstore_clears()
 	}
@@ -251,6 +256,14 @@ fn do_json_test_for(vm_type: &VMType, json_data: &[u8]) -> Vec<String> {
 			(res.finalize(ex), callcreates)
 		};
 
+		let log_hash = {
+			let mut rlp = RlpStream::new_list(substate.logs.len());
+			for l in &substate.logs {
+				rlp.append(l);
+			}
+			&rlp.drain().sha3()
+		};
+
 		match res {
 			Err(_) => fail_unless(out_of_gas, "didn't expect to run out of gas."),
 			Ok(res) => {
@@ -258,6 +271,7 @@ fn do_json_test_for(vm_type: &VMType, json_data: &[u8]) -> Vec<String> {
 				fail_unless(Some(res.gas_left) == vm.gas_left.map(Into::into), "gas_left is incorrect");
 				let vm_output: Option<Vec<u8>> = vm.output.map(Into::into);
 				fail_unless(Some(output) == vm_output, "output is incorrect");
+				fail_unless(Some(*log_hash) == vm.logs.map(|h| h.0), "logs are incorrect");
 
 				for (address, account) in vm.post_state.unwrap().into_iter() {
 					let address = address.into();
@@ -291,15 +305,15 @@ fn do_json_test_for(vm_type: &VMType, json_data: &[u8]) -> Vec<String> {
 }
 
 declare_test!{ExecutiveTests_vmArithmeticTest, "VMTests/vmArithmeticTest"}
-declare_test!{ExecutiveTests_vmBitwiseLogicOperationTest, "VMTests/vmBitwiseLogicOperationTest"}
+declare_test!{ExecutiveTests_vmBitwiseLogicOperationTest, "VMTests/vmBitwiseLogicOperation"}
 declare_test!{ExecutiveTests_vmBlockInfoTest, "VMTests/vmBlockInfoTest"}
  // TODO [todr] Fails with Signal 11 when using JIT
-declare_test!{ExecutiveTests_vmEnvironmentalInfoTest, "VMTests/vmEnvironmentalInfoTest"}
-declare_test!{ExecutiveTests_vmIOandFlowOperationsTest, "VMTests/vmIOandFlowOperationsTest"}
-declare_test!{heavy => ExecutiveTests_vmInputLimits, "VMTests/vmInputLimits"}
+declare_test!{ExecutiveTests_vmEnvironmentalInfoTest, "VMTests/vmEnvironmentalInfo"}
+declare_test!{ExecutiveTests_vmIOandFlowOperationsTest, "VMTests/vmIOandFlowOperations"}
 declare_test!{ExecutiveTests_vmLogTest, "VMTests/vmLogTest"}
-declare_test!{ExecutiveTests_vmPerformanceTest, "VMTests/vmPerformanceTest"}
+declare_test!{heavy => ExecutiveTests_vmPerformance, "VMTests/vmPerformance"}
 declare_test!{ExecutiveTests_vmPushDupSwapTest, "VMTests/vmPushDupSwapTest"}
+declare_test!{ExecutiveTests_vmRandomTest, "VMTests/vmRandomTest"}
 declare_test!{ExecutiveTests_vmSha3Test, "VMTests/vmSha3Test"}
-declare_test!{ExecutiveTests_vmSystemOperationsTest, "VMTests/vmSystemOperationsTest"}
-declare_test!{ExecutiveTests_vmtests, "VMTests/vmtests"}
+declare_test!{ExecutiveTests_vmSystemOperationsTest, "VMTests/vmSystemOperations"}
+declare_test!{ExecutiveTests_vmTests, "VMTests/vmTests"}

ethcore/src/json_tests/homestead_chain.rs

@@ -1,39 +0,0 @@
-// Copyright 2015-2017 Parity Technologies (UK) Ltd.
-// This file is part of Parity.
-
-// Parity is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Parity is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
-
-use super::chain::json_chain_test;
-use tests::helpers::*;
-
-fn do_json_test(json_data: &[u8]) -> Vec<String> {
-	json_chain_test(json_data, ChainEra::Homestead)
-}
-
-declare_test!{BlockchainTests_Homestead_bcBlockGasLimitTest, "BlockchainTests/Homestead/bcBlockGasLimitTest"}
-declare_test!{BlockchainTests_Homestead_bcForkStressTest, "BlockchainTests/Homestead/bcForkStressTest"}
-declare_test!{BlockchainTests_Homestead_bcGasPricerTest, "BlockchainTests/Homestead/bcGasPricerTest"}
-declare_test!{BlockchainTests_Homestead_bcInvalidHeaderTest, "BlockchainTests/Homestead/bcInvalidHeaderTest"}
-declare_test!{BlockchainTests_Homestead_bcInvalidRLPTest, "BlockchainTests/Homestead/bcInvalidRLPTest"}
-declare_test!{BlockchainTests_Homestead_bcMultiChainTest, "BlockchainTests/Homestead/bcMultiChainTest"}
-declare_test!{BlockchainTests_Homestead_bcRPC_API_Test, "BlockchainTests/Homestead/bcRPC_API_Test"}
-declare_test!{BlockchainTests_Homestead_bcStateTest, "BlockchainTests/Homestead/bcStateTest"}
-declare_test!{BlockchainTests_Homestead_bcTotalDifficultyTest, "BlockchainTests/Homestead/bcTotalDifficultyTest"}
-declare_test!{BlockchainTests_Homestead_bcUncleHeaderValiditiy, "BlockchainTests/Homestead/bcUncleHeaderValiditiy"}
-declare_test!{BlockchainTests_Homestead_bcUncleTest, "BlockchainTests/Homestead/bcUncleTest"}
-declare_test!{BlockchainTests_Homestead_bcValidBlockTest, "BlockchainTests/Homestead/bcValidBlockTest"}
-declare_test!{BlockchainTests_Homestead_bcWalletTest, "BlockchainTests/Homestead/bcWalletTest"}
-declare_test!{BlockchainTests_Homestead_bcShanghaiLove, "BlockchainTests/Homestead/bcShanghaiLove"}
-declare_test!{BlockchainTests_Homestead_bcSuicideIssue, "BlockchainTests/Homestead/bcSuicideIssue"}
-declare_test!{BlockchainTests_Homestead_bcExploitTest, "BlockchainTests/Homestead/bcExploitTest"}

ethcore/src/json_tests/mod.rs

@@ -21,5 +21,4 @@ mod transaction;
 mod executive;
 mod state;
 mod chain;
-mod homestead_chain;
 mod trie;

ethcore/src/json_tests/state.rs

@@ -15,23 +15,13 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use super::test_common::*;
-use tests::helpers::*;
 use pod_state::PodState;
-use ethereum;
-use spec::Spec;
+use trace;
+use client::{EvmTestClient, EvmTestError, TransactResult};
 use ethjson;
-use ethjson::state::test::ForkSpec;
 use transaction::SignedTransaction;
 use evm::env_info::EnvInfo;
 
-lazy_static! {
-	pub static ref FRONTIER: Spec = ethereum::new_frontier_test();
-	pub static ref HOMESTEAD: Spec = ethereum::new_homestead_test();
-	pub static ref EIP150: Spec = ethereum::new_eip150_test();
-	pub static ref EIP161: Spec = ethereum::new_eip161_test();
-	pub static ref _METROPOLIS: Spec = ethereum::new_metropolis_test();
-}
-
 pub fn json_chain_test(json_data: &[u8]) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::state::test::Test::load(json_data).unwrap();
@@ -43,35 +33,49 @@ pub fn json_chain_test(json_data: &[u8]) -> Vec<String> {
 			let env: EnvInfo = test.env.into();
 			let pre: PodState = test.pre_state.into();
 
-			for (spec, states) in test.post_states {
+			for (spec_name, states) in test.post_states {
 				let total = states.len();
-				let engine = match spec {
-					ForkSpec::Frontier => &FRONTIER.engine,
-					ForkSpec::Homestead => &HOMESTEAD.engine,
-					ForkSpec::EIP150 => &EIP150.engine,
-					ForkSpec::EIP158 => &EIP161.engine,
-					ForkSpec::Metropolis => continue,
+				let spec = match EvmTestClient::spec_from_json(&spec_name) {
+					Some(spec) => spec,
+					None => {
+						println!("   - {} | {:?} Ignoring tests because of missing spec", name, spec_name);
+						continue;
+					}
 				};
 
 				for (i, state) in states.into_iter().enumerate() {
-					let info = format!("   - {} | {:?} ({}/{}) ...", name, spec, i + 1, total);
+					let info = format!("   - {} | {:?} ({}/{}) ...", name, spec_name, i + 1, total);
 
 					let post_root: H256 = state.hash.into();
 					let transaction: SignedTransaction = multitransaction.select(&state.indexes).into();
-					let mut state = get_temp_state();
-					state.populate_from(pre.clone());
-					if transaction.verify_basic(true, None, env.number >= engine.params().eip86_transition).is_ok() {
-						state.commit().expect(&format!("State test {} failed due to internal error.", name));
-						let _res = state.apply(&env, &**engine, &transaction, false);
-					} else {
-						let _rest = state.commit();
-					}
-					if state.root() != &post_root {
-						println!("{} !!! State mismatch (got: {}, expect: {}", info, state.root(), post_root);
-						flushln!("{} fail", info);
-						failed.push(name.clone());
-					} else {
-						flushln!("{} ok", info);
+
+					let result = || -> Result<_, EvmTestError> {
+						Ok(EvmTestClient::from_pod_state(spec, pre.clone())?
+							.transact(&env, transaction, trace::NoopVMTracer))
+					};
+					match result() {
+						Err(err) => {
+							println!("{} !!! Unexpected internal error: {:?}", info, err);
+							flushln!("{} fail", info);
+							failed.push(name.clone());
+						},
+						Ok(TransactResult::Ok { state_root, .. }) if state_root != post_root => {
+							println!("{} !!! State mismatch (got: {}, expect: {}", info, state_root, post_root);
+							flushln!("{} fail", info);
+							failed.push(name.clone());
+						},
+						Ok(TransactResult::Err { state_root, ref error }) if state_root != post_root => {
+							println!("{} !!! State mismatch (got: {}, expect: {}", info, state_root, post_root);
+							println!("{} !!! Execution error: {:?}", info, error);
+							flushln!("{} fail", info);
+							failed.push(name.clone());
+						},
+						Ok(TransactResult::Err { error, .. }) => {
+							flushln!("{} ok ({:?})", info, error);
+						},
+						Ok(_) => {
+							flushln!("{} ok", info);
+						},
 					}
 				}
 			}
@@ -93,9 +97,8 @@ mod state_tests {
 	}
 
 	declare_test!{GeneralStateTest_stAttackTest, "GeneralStateTests/stAttackTest/"}
-	declare_test!{GeneralStateTest_stBoundsTest, "GeneralStateTests/stBoundsTest/"}
+	declare_test!{GeneralStateTest_stBadOpcodeTest, "GeneralStateTests/stBadOpcode/"}
 	declare_test!{GeneralStateTest_stCallCodes, "GeneralStateTests/stCallCodes/"}
-	declare_test!{skip => [ "createJS_ExampleContract" ], GeneralStateTest_stCallCreateCallCodeTest, "GeneralStateTests/stCallCreateCallCodeTest/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesCallCodeHomestead, "GeneralStateTests/stCallDelegateCodesCallCodeHomestead/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesHomestead, "GeneralStateTests/stCallDelegateCodesHomestead/"}
 	declare_test!{GeneralStateTest_stChangedEIP150, "GeneralStateTests/stChangedEIP150/"}
@@ -104,6 +107,7 @@ mod state_tests {
 	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_stExample, "GeneralStateTests/stExample/"}
 	declare_test!{GeneralStateTest_stHomesteadSpecific, "GeneralStateTests/stHomesteadSpecific/"}
 	declare_test!{GeneralStateTest_stInitCodeTest, "GeneralStateTests/stInitCodeTest/"}
@@ -117,15 +121,18 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stRandom, "GeneralStateTests/stRandom/"}
 	declare_test!{GeneralStateTest_stRecursiveCreate, "GeneralStateTests/stRecursiveCreate/"}
 	declare_test!{GeneralStateTest_stRefundTest, "GeneralStateTests/stRefundTest/"}
-	declare_test!{skip => [ "RevertDepthCreateAddressCollision" ], GeneralStateTest_stRevertTest, "GeneralStateTests/stRevertTest/"}
+	declare_test!{GeneralStateTest_stReturnDataTest, "GeneralStateTests/stReturnDataTest/"}
+	declare_test!{GeneralStateTest_stRevertTest, "GeneralStateTests/stRevertTest/"}
 	declare_test!{GeneralStateTest_stSolidityTest, "GeneralStateTests/stSolidityTest/"}
 	declare_test!{GeneralStateTest_stSpecialTest, "GeneralStateTests/stSpecialTest/"}
 	declare_test!{GeneralStateTest_stStackTests, "GeneralStateTests/stStackTests/"}
+	declare_test!{GeneralStateTest_stStaticCall, "GeneralStateTests/stStaticCall/"}
 	declare_test!{GeneralStateTest_stSystemOperationsTest, "GeneralStateTests/stSystemOperationsTest/"}
 	declare_test!{GeneralStateTest_stTransactionTest, "GeneralStateTests/stTransactionTest/"}
 	declare_test!{GeneralStateTest_stTransitionTest, "GeneralStateTests/stTransitionTest/"}
 	declare_test!{GeneralStateTest_stWalletTest, "GeneralStateTests/stWalletTest/"}
 	declare_test!{GeneralStateTest_stZeroCallsRevert, "GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{GeneralStateTest_stZeroCallsTest, "GeneralStateTests/stZeroCallsTest/"}
+	declare_test!{GeneralStateTest_stZeroKnowledge, "GeneralStateTests/stZeroKnowledge/"}
 }
 

ethcore/src/json_tests/transaction.rs

@@ -25,7 +25,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 	let mut failed = Vec::new();
 	let frontier_schedule = evm::Schedule::new_frontier();
 	let homestead_schedule = evm::Schedule::new_homestead();
-	let metropolis_schedule = evm::Schedule::new_metropolis();
+	let byzantium_schedule = evm::Schedule::new_byzantium();
 	for (name, test) in tests.into_iter() {
 		let mut fail_unless = |cond: bool, title: &str| if !cond { failed.push(name.clone()); println!("Transaction failed: {:?}: {:?}", name, title); };
 
@@ -34,7 +34,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 			None => &frontier_schedule,
 			Some(x) if x < 1_150_000 => &frontier_schedule,
 			Some(x) if x < 3_000_000 => &homestead_schedule,
-			Some(_) => &metropolis_schedule
+			Some(_) => &byzantium_schedule
 		};
 		let allow_network_id_of_one = number.map_or(false, |n| n >= 2_675_000);
 		let allow_unsigned = number.map_or(false, |n| n >= 3_000_000);
@@ -75,18 +75,13 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 	failed
 }
 
-declare_test!{TransactionTests_ttTransactionTest, "TransactionTests/ttTransactionTest"}
-declare_test!{heavy => TransactionTests_tt10mbDataField, "TransactionTests/tt10mbDataField"}
-declare_test!{TransactionTests_ttWrongRLPTransaction, "TransactionTests/ttWrongRLPTransaction"}
-declare_test!{TransactionTests_Homestead_ttTransactionTest, "TransactionTests/Homestead/ttTransactionTest"}
-declare_test!{heavy => TransactionTests_Homestead_tt10mbDataField, "TransactionTests/Homestead/tt10mbDataField"}
-declare_test!{TransactionTests_Homestead_ttWrongRLPTransaction, "TransactionTests/Homestead/ttWrongRLPTransaction"}
-declare_test!{TransactionTests_RandomTests_tr201506052141PYTHON, "TransactionTests/RandomTests/tr201506052141PYTHON"}
-declare_test!{TransactionTests_Homestead_ttTransactionTestEip155VitaliksTests, "TransactionTests/Homestead/ttTransactionTestEip155VitaliksTests"}
-declare_test!{TransactionTests_EIP155_ttTransactionTest, "TransactionTests/EIP155/ttTransactionTest"}
-declare_test!{TransactionTests_EIP155_ttTransactionTestEip155VitaliksTests, "TransactionTests/EIP155/ttTransactionTestEip155VitaliksTests"}
-declare_test!{TransactionTests_EIP155_ttTransactionTestVRule, "TransactionTests/EIP155/ttTransactionTestVRule"}
-
-declare_test!{TransactionTests_Metropolis_ttMetropolisTest, "TransactionTests/Metropolis/ttMetropolisTest"}
-declare_test!{TransactionTests_Metropolis_ttTransactionTest, "TransactionTests/Metropolis/ttTransactionTest"}
-declare_test!{TransactionTests_Metropolis_ttTransactionTestZeroSig, "TransactionTests/Metropolis/ttTransactionTestZeroSig"}
+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"}

ethcore/src/lib.rs

@@ -99,6 +99,7 @@ extern crate native_contracts;
 extern crate num_cpus;
 extern crate num;
 extern crate rand;
+extern crate rayon;
 extern crate rlp;
 extern crate rustc_hex;
 extern crate rustc_serialize;

ethcore/src/miner/miner.rs

@@ -736,14 +736,18 @@ impl MinerService for Miner {
 
 				let sender = t.sender();
 				let balance = state.balance(&sender).map_err(ExecutionError::from)?;
-				let needed_balance = t.value + t.gas * t.gas_price;
+				let needed_balance = t.value.saturating_add(t.gas.saturating_mul(t.gas_price));
 				if balance < needed_balance {
 					// give the sender a sufficient balance
 					state.add_balance(&sender, &(needed_balance - balance), CleanupMode::NoEmpty)
 						.map_err(ExecutionError::from)?;
 				}
-				let options = TransactOptions { tracing: analytics.transaction_tracing, vm_tracing: analytics.vm_tracing, check_nonce: false };
-				let mut ret = Executive::new(&mut state, &env_info, &*self.engine).transact(t, options)?;
+				let mut ret = match (analytics.transaction_tracing, analytics.vm_tracing) {
+					(true, true) => Executive::new(&mut state, &env_info, &*self.engine).transact(t, TransactOptions::with_tracing_and_vm_tracing().save_output_from_contract())?,
+					(true, false) => Executive::new(&mut state, &env_info, &*self.engine).transact(t, TransactOptions::with_tracing().save_output_from_contract())?,
+					(false, true) => Executive::new(&mut state, &env_info, &*self.engine).transact(t, TransactOptions::with_vm_tracing().save_output_from_contract())?,
+					(false, false) => Executive::new(&mut state, &env_info, &*self.engine).transact(t, TransactOptions::with_no_tracing().save_output_from_contract())?,
+				};
 
 				// TODO gav move this into Executive.
 				if let Some(original) = original_state {
@@ -1074,7 +1078,7 @@ impl MinerService for Miner {
 							},
 							logs: receipt.logs.clone(),
 							log_bloom: receipt.log_bloom,
-							state_root: receipt.state_root,
+							outcome: receipt.outcome.clone(),
 						}
 					})
 			}

ethcore/src/miner/stratum.rs

@@ -32,7 +32,6 @@ use util::Mutex;
 use miner::{self, Miner, MinerService};
 use client::Client;
 use block::IsBlock;
-use std::str::FromStr;
 use rlp::encode;
 
 /// Configures stratum server options.
@@ -60,7 +59,7 @@ impl SubmitPayload {
 			return Err(PayloadError::ArgumentsAmountUnexpected(payload.len()));
 		}
 
-		let nonce = match H64::from_str(clean_0x(&payload[0])) {
+		let nonce = match clean_0x(&payload[0]).parse::<H64>() {
 			Ok(nonce) => nonce,
 			Err(e) => {
 				warn!(target: "stratum", "submit_work ({}): invalid nonce ({:?})", &payload[0], e);
@@ -68,7 +67,7 @@ impl SubmitPayload {
 			}
 		};
 
-		let pow_hash = match H256::from_str(clean_0x(&payload[1])) {
+		let pow_hash = match clean_0x(&payload[1]).parse::<H256>() {
 			Ok(pow_hash) => pow_hash,
 			Err(e) => {
 				warn!(target: "stratum", "submit_work ({}): invalid hash ({:?})", &payload[1], e);
@@ -76,7 +75,7 @@ impl SubmitPayload {
 			}
 		};
 
-		let mix_hash = match H256::from_str(clean_0x(&payload[2])) {
+		let mix_hash = match clean_0x(&payload[2]).parse::<H256>() {
 			Ok(mix_hash) => mix_hash,
 			Err(e) => {
 				warn!(target: "stratum", "submit_work ({}): invalid mix-hash ({:?})",  &payload[2], e);
@@ -133,7 +132,7 @@ impl JobDispatcher for StratumJobDispatcher {
 
 	fn submit(&self, payload: Vec<String>) -> Result<(), StratumServiceError> {
 		let payload = SubmitPayload::from_args(payload).map_err(|e|
-			StratumServiceError::Dispatch(format!("{}", e))
+			StratumServiceError::Dispatch(e.to_string())
 		)?;
 
 		trace!(
@@ -144,14 +143,16 @@ impl JobDispatcher for StratumJobDispatcher {
 			payload.mix_hash,
 		);
 
-		self.with_core_void(|client, miner| {
+		self.with_core_result(|client, miner| {
 			let seal = vec![encode(&payload.mix_hash).into_vec(), encode(&payload.nonce).into_vec()];
-			if let Err(e) = miner.submit_seal(&*client, payload.pow_hash, seal) {
-				warn!(target: "stratum", "submit_seal error: {:?}", e);
-			};
-		});
-
-		Ok(())
+			match miner.submit_seal(&*client, payload.pow_hash, seal) {
+				Ok(_) => Ok(()),
+				Err(e) => {
+					warn!(target: "stratum", "submit_seal error: {:?}", e);
+					Err(StratumServiceError::Dispatch(e.to_string()))
+				}
+			}
+		})
 	}
 }
 
@@ -181,8 +182,11 @@ impl StratumJobDispatcher {
 		self.client.upgrade().and_then(|client| self.miner.upgrade().and_then(|miner| (f)(client, miner)))
 	}
 
-	fn with_core_void<F>(&self, f: F) where F: Fn(Arc<Client>, Arc<Miner>) {
-		self.client.upgrade().map(|client| self.miner.upgrade().map(|miner| (f)(client, miner)));
+	fn with_core_result<F>(&self, f: F) -> Result<(), StratumServiceError> where F: Fn(Arc<Client>, Arc<Miner>) -> Result<(), StratumServiceError> {
+		match (self.client.upgrade(), self.miner.upgrade()) {
+			(Some(client), Some(miner)) => f(client, miner),
+			_ => Ok(()),
+		}
 	}
 }
 
@@ -230,7 +234,7 @@ impl Stratum {
 		let dispatcher = Arc::new(StratumJobDispatcher::new(miner, client));
 
 		let stratum_svc = StratumService::start(
-			&SocketAddr::new(IpAddr::from_str(&options.listen_addr)?, options.port),
+			&SocketAddr::new(options.listen_addr.parse::<IpAddr>()?, options.port),
 			dispatcher.clone(),
 			options.secret.clone(),
 		)?;

ethcore/src/miner/transaction_queue.rs

@@ -506,8 +506,6 @@ pub struct AccountDetails {
 	pub balance: U256,
 }
 
-/// Transactions with `gas > (gas_limit + gas_limit * Factor(in percents))` are not imported to the queue.
-const GAS_LIMIT_HYSTERESIS: usize = 200; // (100/GAS_LIMIT_HYSTERESIS) %
 /// Transaction with the same (sender, nonce) can be replaced only if
 /// `new_gas_price > old_gas_price + old_gas_price >> SHIFT`
 const GAS_PRICE_BUMP_SHIFT: usize = 3; // 2 = 25%, 3 = 12.5%, 4 = 6.25%
@@ -570,8 +568,8 @@ pub struct TransactionQueue {
 	minimal_gas_price: U256,
 	/// The maximum amount of gas any individual transaction may use.
 	tx_gas_limit: U256,
-	/// Current gas limit (block gas limit * factor). Transactions above the limit will not be accepted (default to !0)
-	total_gas_limit: U256,
+	/// Current gas limit (block gas limit). Transactions above the limit will not be accepted (default to !0)
+	block_gas_limit: U256,
 	/// Maximal time transaction may occupy the queue.
 	/// When we reach `max_time_in_queue / 2^3` we re-validate
 	/// account balance.
@@ -631,7 +629,7 @@ impl TransactionQueue {
 		TransactionQueue {
 			strategy,
 			minimal_gas_price: U256::zero(),
-			total_gas_limit: !U256::zero(),
+			block_gas_limit: !U256::zero(),
 			tx_gas_limit,
 			max_time_in_queue: DEFAULT_QUEUING_PERIOD,
 			current,
@@ -674,16 +672,10 @@ impl TransactionQueue {
 		self.current.gas_price_entry_limit()
 	}
 
-	/// Sets new gas limit. Transactions with gas slightly (`GAS_LIMIT_HYSTERESIS`) above the limit won't be imported.
+	/// Sets new gas limit. Transactions with gas over the limit will not be accepted.
 	/// Any transaction already imported to the queue is not affected.
 	pub fn set_gas_limit(&mut self, gas_limit: U256) {
-		let extra = gas_limit / U256::from(GAS_LIMIT_HYSTERESIS);
-
-		let total_gas_limit = match gas_limit.overflowing_add(extra) {
-			(_, true) => !U256::zero(),
-			(val, false) => val,
-		};
-		self.total_gas_limit = total_gas_limit;
+		self.block_gas_limit = gas_limit;
 	}
 
 	/// Sets new total gas limit.
@@ -819,13 +811,13 @@ impl TransactionQueue {
 			}));
 		}
 
-		let gas_limit = cmp::min(self.tx_gas_limit, self.total_gas_limit);
+		let gas_limit = cmp::min(self.tx_gas_limit, self.block_gas_limit);
 		if tx.gas > gas_limit {
 			trace!(target: "txqueue",
 				"Dropping transaction above gas limit: {:?} ({} > min({}, {}))",
 				tx.hash(),
 				tx.gas,
-				self.total_gas_limit,
+				self.block_gas_limit,
 				self.tx_gas_limit
 			);
 			return Err(Error::Transaction(TransactionError::GasLimitExceeded {
@@ -1922,13 +1914,13 @@ pub mod test {
 		// given
 		let mut txq = TransactionQueue::default();
 		txq.set_gas_limit(U256::zero());
-		assert_eq!(txq.total_gas_limit, U256::zero());
+		assert_eq!(txq.block_gas_limit, U256::zero());
 
 		// when
 		txq.set_gas_limit(!U256::zero());
 
 		// then
-		assert_eq!(txq.total_gas_limit, !U256::zero());
+		assert_eq!(txq.block_gas_limit, !U256::zero());
 	}
 
 	#[test]
@@ -1945,7 +1937,7 @@ pub mod test {
 
 		// then
 		assert_eq!(unwrap_tx_err(res), TransactionError::GasLimitExceeded {
-			limit: U256::from(50_250), // Should be 100.5% of set_gas_limit
+			limit: U256::from(50_000),
 			got: gas,
 		});
 		let stats = txq.status();

ethcore/src/snapshot/consensus/work.rs

@@ -37,11 +37,24 @@ use rand::OsRng;
 /// Snapshot creation and restoration for PoW chains.
 /// This includes blocks from the head of the chain as a
 /// loose assurance that the chain is valid.
-///
-/// The field is the number of blocks from the head of the chain
-/// to include in the snapshot.
 #[derive(Clone, Copy, PartialEq)]
-pub struct PowSnapshot(pub u64);
+pub struct PowSnapshot {
+	/// Number of blocks from the head of the chain
+	/// to include in the snapshot.
+	pub blocks: u64,
+	/// Number of to allow in the snapshot when restoring.
+	pub max_restore_blocks: u64,
+}
+
+impl PowSnapshot {
+	/// Create a new instance.
+	pub fn new(blocks: u64, max_restore_blocks: u64) -> PowSnapshot {
+		PowSnapshot {
+			blocks: blocks,
+			max_restore_blocks: max_restore_blocks,
+		}
+	}
+}
 
 impl SnapshotComponents for PowSnapshot {
 	fn chunk_all(
@@ -57,7 +70,7 @@ impl SnapshotComponents for PowSnapshot {
 			current_hash: block_at,
 			writer: chunk_sink,
 			preferred_size: preferred_size,
-		}.chunk_all(self.0)
+		}.chunk_all(self.blocks)
 	}
 
 	fn rebuilder(
@@ -66,7 +79,7 @@ impl SnapshotComponents for PowSnapshot {
 		db: Arc<KeyValueDB>,
 		manifest: &ManifestData,
 	) -> Result<Box<Rebuilder>, ::error::Error> {
-		PowRebuilder::new(chain, db, manifest, self.0).map(|r| Box::new(r) as Box<_>)
+		PowRebuilder::new(chain, db, manifest, self.max_restore_blocks).map(|r| Box::new(r) as Box<_>)
 	}
 
 	fn min_supported_version(&self) -> u64 { ::snapshot::MIN_SUPPORTED_STATE_CHUNK_VERSION }
@@ -218,7 +231,7 @@ impl Rebuilder for PowRebuilder {
 		trace!(target: "snapshot", "restoring block chunk with {} blocks.", item_count - 3);
 
 		if self.fed_blocks + num_blocks > self.snapshot_blocks {
-			return Err(Error::TooManyBlocks(self.snapshot_blocks, self.fed_blocks).into())
+			return Err(Error::TooManyBlocks(self.snapshot_blocks, self.fed_blocks + num_blocks).into())
 		}
 
 		// todo: assert here that these values are consistent with chunks being in order.

ethcore/src/snapshot/service.rs

@@ -46,6 +46,9 @@ struct Guard(bool, PathBuf);
 impl Guard {
 	fn new(path: PathBuf) -> Self { Guard(true, path) }
 
+	#[cfg(test)]
+	fn benign() -> Self { Guard(false, PathBuf::default()) }
+
 	fn disarm(mut self) { self.0 = false }
 }
 
@@ -123,7 +126,7 @@ impl Restoration {
 
 	// feeds a state chunk, aborts early if `flag` becomes false.
 	fn feed_state(&mut self, hash: H256, chunk: &[u8], flag: &AtomicBool) -> Result<(), Error> {
-		if self.state_chunks_left.remove(&hash) {
+		if self.state_chunks_left.contains(&hash) {
 			let len = snappy::decompress_into(chunk, &mut self.snappy_buffer)?;
 
 			self.state.feed(&self.snappy_buffer[..len], flag)?;
@@ -131,6 +134,8 @@ impl Restoration {
 			if let Some(ref mut writer) = self.writer.as_mut() {
 				writer.write_state_chunk(hash, chunk)?;
 			}
+
+			self.state_chunks_left.remove(&hash);
 		}
 
 		Ok(())
@@ -138,13 +143,15 @@ impl Restoration {
 
 	// feeds a block chunk
 	fn feed_blocks(&mut self, hash: H256, chunk: &[u8], engine: &Engine, flag: &AtomicBool) -> Result<(), Error> {
-		if self.block_chunks_left.remove(&hash) {
+		if self.block_chunks_left.contains(&hash) {
 			let len = snappy::decompress_into(chunk, &mut self.snappy_buffer)?;
 
 			self.secondary.feed(&self.snappy_buffer[..len], engine, flag)?;
 			if let Some(ref mut writer) = self.writer.as_mut() {
 				 writer.write_block_chunk(hash, chunk)?;
 			}
+
+			self.block_chunks_left.remove(&hash);
 		}
 
 		Ok(())
@@ -558,9 +565,9 @@ impl SnapshotService for Service {
 		self.reader.read().as_ref().map(|r| r.manifest().clone())
 	}
 
-	fn min_supported_version(&self) -> Option<u64> {
+	fn supported_versions(&self) -> Option<(u64, u64)> {
 		self.engine.snapshot_components()
-			.map(|c| c.min_supported_version())
+			.map(|c| (c.min_supported_version(), c.current_version()))
 	}
 
 	fn chunk(&self, hash: H256) -> Option<Bytes> {
@@ -668,4 +675,50 @@ mod tests {
 		service.restore_state_chunk(Default::default(), vec![]);
 		service.restore_block_chunk(Default::default(), vec![]);
 	}
+
+	#[test]
+	fn cannot_finish_with_invalid_chunks() {
+		use util::H256;
+		use util::kvdb::DatabaseConfig;
+
+		let spec = get_test_spec();
+		let dir = RandomTempPath::new();
+
+		let state_hashes: Vec<_> = (0..5).map(|_| H256::random()).collect();
+		let block_hashes: Vec<_> = (0..5).map(|_| H256::random()).collect();
+		let db_config = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
+		let gb = spec.genesis_block();
+		let flag = ::std::sync::atomic::AtomicBool::new(true);
+
+		let params = RestorationParams {
+			manifest: ManifestData {
+				version: 2,
+				state_hashes: state_hashes.clone(),
+				block_hashes: block_hashes.clone(),
+				state_root: H256::default(),
+				block_number: 100000,
+				block_hash: H256::default(),
+			},
+			pruning: Algorithm::Archive,
+			db_path: dir.as_path().to_owned(),
+			db_config: &db_config,
+			writer: None,
+			genesis: &gb,
+			guard: Guard::benign(),
+			engine: &*spec.engine,
+		};
+
+		let mut restoration = Restoration::new(params).unwrap();
+		let definitely_bad_chunk = [1, 2, 3, 4, 5];
+
+		for hash in state_hashes {
+			assert!(restoration.feed_state(hash, &definitely_bad_chunk, &flag).is_err());
+			assert!(!restoration.is_done());
+		}
+
+		for hash in block_hashes {
+			assert!(restoration.feed_blocks(hash, &definitely_bad_chunk, &*spec.engine, &flag).is_err());
+			assert!(!restoration.is_done());
+		}
+	}
 }

ethcore/src/snapshot/snapshot_service_trait.rs

@@ -27,9 +27,9 @@ pub trait SnapshotService : Sync + Send {
 	/// Query the most recent manifest data.
 	fn manifest(&self) -> Option<ManifestData>;
 
-	/// Get the minimum supported snapshot version number.
+	/// Get the supported range of snapshot version numbers.
 	/// `None` indicates warp sync isn't supported by the consensus engine.
-	fn min_supported_version(&self) -> Option<u64>;
+	fn supported_versions(&self) -> Option<(u64, u64)>;
 
 	/// Get raw chunk for a given hash.
 	fn chunk(&self, hash: H256) -> Option<Bytes>;

ethcore/src/snapshot/tests/proof_of_work.rs

@@ -30,7 +30,7 @@ use util::kvdb::{self, KeyValueDB, DBTransaction};
 use std::sync::Arc;
 use std::sync::atomic::AtomicBool;
 
-const SNAPSHOT_MODE: ::snapshot::PowSnapshot = ::snapshot::PowSnapshot(30000);
+const SNAPSHOT_MODE: ::snapshot::PowSnapshot = ::snapshot::PowSnapshot { blocks: 30000, max_restore_blocks: 30000 };
 
 fn chunk_and_restore(amount: u64) {
 	let mut canon_chain = ChainGenerator::default();

ethcore/src/spec/spec.rs

@@ -59,6 +59,8 @@ pub struct CommonParams {
 	pub fork_block: Option<(BlockNumber, H256)>,
 	/// Number of first block where EIP-98 rules begin.
 	pub eip98_transition: BlockNumber,
+	/// Number of first block where EIP-658 rules begin.
+	pub eip658_transition: BlockNumber,
 	/// Validate block receipts root.
 	pub validate_receipts_transition: u64,
 	/// Number of first block where EIP-86 (Metropolis) rules begin.
@@ -100,8 +102,9 @@ impl CommonParams {
 		schedule.have_create2 = block_number >= self.eip86_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;
 		if block_number >= self.eip210_transition {
-			schedule.blockhash_gas = 350;
+			schedule.blockhash_gas = 800;
 		}
 		if block_number >= self.dust_protection_transition {
 			schedule.kill_dust = match self.remove_dust_contracts {
@@ -134,6 +137,7 @@ impl From<ethjson::spec::Params> for CommonParams {
 			eip210_contract_gas: p.eip210_contract_gas.map_or(1000000.into(), Into::into),
 			eip211_transition: p.eip211_transition.map_or(BlockNumber::max_value(), Into::into),
 			eip214_transition: p.eip214_transition.map_or(BlockNumber::max_value(), Into::into),
+			eip658_transition: p.eip658_transition.map_or(BlockNumber::max_value(), Into::into),
 			dust_protection_transition: p.dust_protection_transition.map_or(BlockNumber::max_value(), Into::into),
 			nonce_cap_increment: p.nonce_cap_increment.map_or(64, Into::into),
 			remove_dust_contracts: p.remove_dust_contracts.unwrap_or(false),
@@ -186,7 +190,33 @@ pub struct Spec {
 	genesis_state: PodState,
 }
 
-fn load_from<T: AsRef<Path>>(cache_dir: T, s: ethjson::spec::Spec) -> Result<Spec, Error> {
+#[cfg(test)]
+impl Clone for Spec {
+	fn clone(&self) -> Spec {
+		Spec {
+			name: self.name.clone(),
+			engine: self.engine.clone(),
+			data_dir: self.data_dir.clone(),
+			nodes: self.nodes.clone(),
+			parent_hash: self.parent_hash.clone(),
+			transactions_root: self.transactions_root.clone(),
+			receipts_root: self.receipts_root.clone(),
+			author: self.author.clone(),
+			difficulty: self.difficulty.clone(),
+			gas_limit: self.gas_limit.clone(),
+			gas_used: self.gas_used.clone(),
+			timestamp: self.timestamp.clone(),
+			extra_data: self.extra_data.clone(),
+			seal_rlp: self.seal_rlp.clone(),
+			constructors: self.constructors.clone(),
+			state_root_memo: RwLock::new(*self.state_root_memo.read()),
+			genesis_state: self.genesis_state.clone(),
+		}
+	}
+}
+
+/// Load from JSON object.
+pub fn load_from<T: AsRef<Path>>(cache_dir: T, s: ethjson::spec::Spec) -> Result<Spec, Error> {
 	let builtins = s.accounts.builtins().into_iter().map(|p| (p.0.into(), From::from(p.1))).collect();
 	let g = Genesis::from(s.genesis);
 	let GenericSeal(seal_rlp) = g.seal.into();
@@ -310,11 +340,10 @@ impl Spec {
 				};
 
 				let mut substate = Substate::new();
-				state.kill_account(&address);
 
 				{
 					let mut exec = Executive::new(&mut state, &env_info, self.engine.as_ref());
-					if let Err(e) = exec.create(params, &mut substate, &mut NoopTracer, &mut NoopVMTracer) {
+					if let Err(e) = exec.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer) {
 						warn!(target: "spec", "Genesis constructor execution at {} failed: {}.", address, e);
 					}
 				}
@@ -524,6 +553,9 @@ mod tests {
 		let db = spec.ensure_db_good(get_temp_state_db(), &Default::default()).unwrap();
 		let state = State::from_existing(db.boxed_clone(), spec.state_root(), spec.engine.account_start_nonce(0), Default::default()).unwrap();
 		let expected = H256::from_str("0000000000000000000000000000000000000000000000000000000000000001").unwrap();
-		assert_eq!(state.storage_at(&Address::from_str("0000000000000000000000000000000000000005").unwrap(), &H256::zero()).unwrap(), expected);
+		let address = Address::from_str("0000000000000000000000000000000000000005").unwrap();
+
+		assert_eq!(state.storage_at(&address, &H256::zero()).unwrap(), expected);
+		assert_eq!(state.balance(&address).unwrap(), 1.into());
 	}
 }

ethcore/src/state/mod.rs

@@ -22,13 +22,13 @@
 use std::cell::{RefCell, RefMut};
 use std::collections::hash_map::Entry;
 
-use receipt::Receipt;
+use receipt::{Receipt, TransactionOutcome};
 use engines::Engine;
 use evm::env_info::EnvInfo;
 use error::Error;
 use executive::{Executive, TransactOptions};
 use factory::Factories;
-use trace::FlatTrace;
+use trace::{self, FlatTrace, VMTrace};
 use pod_account::*;
 use pod_state::{self, PodState};
 use types::basic_account::BasicAccount;
@@ -56,8 +56,12 @@ pub use self::substate::Substate;
 pub struct ApplyOutcome {
 	/// The receipt for the applied transaction.
 	pub receipt: Receipt,
-	/// The trace for the applied transaction, if None if tracing is disabled.
+	/// The output of the applied transaction.
+	pub output: Bytes,
+	/// The trace for the applied transaction, empty if tracing was not produced.
 	pub trace: Vec<FlatTrace>,
+	/// The VM trace for the applied transaction, None if tracing was not produced.
+	pub vm_trace: Option<VMTrace>
 }
 
 /// Result type for the execution ("application") of a transaction.
@@ -202,7 +206,7 @@ pub fn check_proof(
 		Err(_) => return ProvedExecution::BadProof,
 	};
 
-	match state.execute(env_info, engine, transaction, false, true) {
+	match state.execute(env_info, engine, transaction, TransactOptions::with_no_tracing(), true) {
 		Ok(executed) => ProvedExecution::Complete(executed),
 		Err(ExecutionError::Internal(_)) => ProvedExecution::BadProof,
 		Err(e) => ProvedExecution::Failed(e),
@@ -287,7 +291,7 @@ const SEC_TRIE_DB_UNWRAP_STR: &'static str = "A state can only be created with v
 
 impl<B: Backend> State<B> {
 	/// Creates new state with empty state root
-	#[cfg(test)]
+	/// Used for tests.
 	pub fn new(mut db: B, account_start_nonce: U256, factories: Factories) -> State<B> {
 		let mut root = H256::new();
 		{
@@ -451,9 +455,10 @@ impl<B: Backend> State<B> {
 		self.ensure_cached(a, RequireCache::None, false, |a| a.map_or(false, |a| !a.is_null()))
 	}
 
-	/// Determine whether an account exists and has code.
-	pub fn exists_and_has_code(&self, a: &Address) -> trie::Result<bool> {
-		self.ensure_cached(a, RequireCache::CodeSize, false, |a| a.map_or(false, |a| a.code_size().map_or(false, |size| size != 0)))
+	/// Determine whether an account exists and has code or non-zero nonce.
+	pub fn exists_and_has_code_or_nonce(&self, a: &Address) -> trie::Result<bool> {
+		self.ensure_cached(a, RequireCache::CodeSize, false,
+			|a| a.map_or(false, |a| a.code_hash() != SHA3_EMPTY || *a.nonce() != self.account_start_nonce))
 	}
 
 	/// Get the balance of account `a`.
@@ -620,29 +625,66 @@ impl<B: Backend> State<B> {
 	/// Execute a given transaction, producing a receipt and an optional trace.
 	/// This will change the state accordingly.
 	pub fn apply(&mut self, env_info: &EnvInfo, engine: &Engine, t: &SignedTransaction, tracing: bool) -> ApplyResult {
-//		let old = self.to_pod();
-
-		let e = self.execute(env_info, engine, t, tracing, false)?;
-//		trace!("Applied transaction. Diff:\n{}\n", state_diff::diff_pod(&old, &self.to_pod()));
-		let state_root = if env_info.number < engine.params().eip98_transition || env_info.number < engine.params().validate_receipts_transition {
-			self.commit()?;
-			Some(self.root().clone())
+		if tracing {
+			let options = TransactOptions::with_tracing();
+			self.apply_with_tracing(env_info, engine, t, options.tracer, options.vm_tracer)
 		} else {
-			None
+			let options = TransactOptions::with_no_tracing();
+			self.apply_with_tracing(env_info, engine, t, options.tracer, options.vm_tracer)
+		}
+	}
+
+	/// Execute a given transaction with given tracer and VM tracer producing a receipt and an optional trace.
+	/// This will change the state accordingly.
+	pub fn apply_with_tracing<V, T>(
+		&mut self,
+		env_info: &EnvInfo,
+		engine: &Engine,
+		t: &SignedTransaction,
+		tracer: T,
+		vm_tracer: V,
+	) -> ApplyResult where
+		T: trace::Tracer,
+		V: trace::VMTracer,
+	{
+		let options = TransactOptions::new(tracer, vm_tracer);
+		let e = self.execute(env_info, engine, t, options, false)?;
+
+		let eip658 = env_info.number >= engine.params().eip658_transition;
+		let no_intermediate_commits =
+			eip658 ||
+			(env_info.number >= engine.params().eip98_transition && env_info.number >= engine.params().validate_receipts_transition);
+
+		let outcome = if no_intermediate_commits {
+			if eip658 {
+				TransactionOutcome::StatusCode(if e.exception.is_some() { 0 } else { 1 })
+			} else {
+				TransactionOutcome::Unknown
+			}
+		} else {
+			self.commit()?;
+			TransactionOutcome::StateRoot(self.root().clone())
 		};
-		let receipt = Receipt::new(state_root, e.cumulative_gas_used, e.logs);
+
+		let output = e.output;
+		let receipt = Receipt::new(outcome, e.cumulative_gas_used, e.logs);
 		trace!(target: "state", "Transaction receipt: {:?}", receipt);
-		Ok(ApplyOutcome{receipt: receipt, trace: e.trace})
+
+		Ok(ApplyOutcome {
+			receipt,
+			output,
+			trace: e.trace,
+			vm_trace: e.vm_trace,
+		})
 	}
 
 	// Execute a given transaction without committing changes.
 	//
 	// `virt` signals that we are executing outside of a block set and restrictions like
 	// gas limits and gas costs should be lifted.
-	fn execute(&mut self, env_info: &EnvInfo, engine: &Engine, t: &SignedTransaction, tracing: bool, virt: bool)
-		-> Result<Executed, ExecutionError>
+	fn execute<T, V>(&mut self, env_info: &EnvInfo, engine: &Engine, t: &SignedTransaction, options: TransactOptions<T, V>, virt: bool)
+		-> Result<Executed, ExecutionError> where T: trace::Tracer, V: trace::VMTracer,
 	{
-		let options = TransactOptions { tracing: tracing, vm_tracing: false, check_nonce: true };
 		let mut e = Executive::new(self, env_info, engine);
 
 		match virt {
@@ -727,9 +769,8 @@ impl<B: Backend> State<B> {
 		Ok(())
 	}
 
-	#[cfg(test)]
-	#[cfg(feature = "json-tests")]
 	/// Populate the state from `accounts`.
+	/// Used for tests.
 	pub fn populate_from(&mut self, accounts: PodState) {
 		assert!(self.checkpoints.borrow().is_empty());
 		for (add, acc) in accounts.drain().into_iter() {

ethcore/src/tests/client.rs

@@ -17,7 +17,7 @@
 use io::IoChannel;
 use client::{BlockChainClient, MiningBlockChainClient, Client, ClientConfig, BlockId};
 use state::{self, State, CleanupMode};
-use executive::Executive;
+use executive::{Executive, TransactOptions};
 use ethereum;
 use block::IsBlock;
 use tests::helpers::*;
@@ -359,7 +359,7 @@ fn transaction_proof() {
 
 	let mut state = State::from_existing(backend, root, 0.into(), factories.clone()).unwrap();
 	Executive::new(&mut state, &client.latest_env_info(), &*test_spec.engine)
-		.transact(&transaction, Default::default()).unwrap();
+		.transact(&transaction, TransactOptions::with_no_tracing().dont_check_nonce()).unwrap();
 
 	assert_eq!(state.balance(&Address::default()).unwrap(), 5.into());
 	assert_eq!(state.balance(&address).unwrap(), 95.into());

ethcore/src/tests/evm.rs

@@ -22,7 +22,7 @@ fn test_blockhash_eip210(factory: Factory) {
 	let test_blockhash_contract = "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";
 	let blockhash_contract_code = Arc::new(test_blockhash_contract.from_hex().unwrap());
 	let blockhash_contract_code_hash = blockhash_contract_code.sha3();
-	let engine = TestEngine::new_metropolis();
+	let engine = TestEngine::new_constantinople();
 	let mut env_info = EnvInfo::default();
 
 	// populate state with 256 last hashes

ethcore/src/tests/helpers.rs

@@ -36,15 +36,6 @@ use transaction::{Action, Transaction, SignedTransaction};
 use rlp::{self, RlpStream};
 use views::BlockView;
 
-#[cfg(feature = "json-tests")]
-pub enum ChainEra {
-	Frontier,
-	Homestead,
-	Eip150,
-	_Eip161,
-	TransitionTest,
-}
-
 pub struct TestEngine {
 	engine: Arc<Engine>,
 	max_depth: usize,
@@ -58,9 +49,16 @@ impl TestEngine {
 		}
 	}
 
-	pub fn new_metropolis() -> TestEngine {
+	pub fn new_byzantium() -> TestEngine {
 		TestEngine {
-			engine: ethereum::new_metropolis_test().engine,
+			engine: ethereum::new_byzantium_test().engine,
+			max_depth: 0,
+		}
+	}
+
+	pub fn new_constantinople() -> TestEngine {
+		TestEngine {
+			engine: ethereum::new_constantinople_test().engine,
 			max_depth: 0,
 		}
 	}
@@ -425,5 +423,8 @@ pub fn get_default_ethash_params() -> EthashParams{
 		max_gas_limit: U256::max_value(),
 		min_gas_price_transition: u64::max_value(),
 		min_gas_price: U256::zero(),
+		eip649_transition: u64::max_value(),
+		eip649_delay: 3_000_000,
+		eip649_reward: None,
 	}
 }

ethcore/src/trace/executive_tracer.rs

@@ -167,7 +167,7 @@ impl Tracer for ExecutiveTracer {
 		ExecutiveTracer::default()
 	}
 
-	fn traces(self) -> Vec<FlatTrace> {
+	fn drain(self) -> Vec<FlatTrace> {
 		self.traces
 	}
 }

ethcore/src/trace/mod.rs

@@ -85,7 +85,7 @@ pub trait Tracer: Send {
 	fn subtracer(&self) -> Self where Self: Sized;
 
 	/// Consumes self and returns all traces.
-	fn traces(self) -> Vec<FlatTrace>;
+	fn drain(self) -> Vec<FlatTrace>;
 }
 
 /// Used by executive to build VM traces.

ethcore/src/trace/noop_tracer.rs

@@ -62,7 +62,7 @@ impl Tracer for NoopTracer {
 		NoopTracer
 	}
 
-	fn traces(self) -> Vec<FlatTrace> {
+	fn drain(self) -> Vec<FlatTrace> {
 		vec![]
 	}
 }

ethcore/src/trace/types/error.rs

@@ -43,6 +43,10 @@ pub enum Error {
 	MutableCallInStaticContext,
 	/// Wasm error
 	Wasm,
+	/// Contract tried to access past the return data buffer.
+	OutOfBounds,
+	/// Execution has been reverted with REVERT instruction.
+	Reverted,
 }
 
 impl<'a> From<&'a EvmError> for Error {
@@ -57,6 +61,8 @@ impl<'a> From<&'a EvmError> for Error {
 			EvmError::Wasm { .. } => Error::Wasm,
 			EvmError::Internal(_) => Error::Internal,
 			EvmError::MutableCallInStaticContext => Error::MutableCallInStaticContext,
+			EvmError::OutOfBounds => Error::OutOfBounds,
+			EvmError::Reverted => Error::Reverted,
 		}
 	}
 }
@@ -80,6 +86,8 @@ impl fmt::Display for Error {
 			Wasm => "Wasm runtime error",
 			Internal => "Internal error",
 			MutableCallInStaticContext => "Mutable Call In Static Context",
+			OutOfBounds => "Out of bounds",
+			Reverted => "Reverted",
 		};
 		message.fmt(f)
 	}
@@ -98,6 +106,8 @@ impl Encodable for Error {
 			BuiltIn => 6,
 			MutableCallInStaticContext => 7,
 			Wasm => 8,
+			OutOfBounds => 9,
+			Reverted => 10,
 		};
 
 		s.append_internal(&value);
@@ -118,6 +128,8 @@ impl Decodable for Error {
 			6 => Ok(BuiltIn),
 			7 => Ok(MutableCallInStaticContext),
 			8 => Ok(Wasm),
+			9 => Ok(OutOfBounds),
+			10 => Ok(Reverted),
 			_ => Err(DecoderError::Custom("Invalid error type")),
 		}
 	}

ethcore/src/verification/verification.rs

@@ -380,14 +380,13 @@ mod tests {
 			self.numbers.get(&index).cloned()
 		}
 
-		fn blocks_with_bloom(&self, _bloom: &H2048, _from_block: BlockNumber, _to_block: BlockNumber) -> Vec<BlockNumber> {
-			unimplemented!()
-		}
-
 		fn block_receipts(&self, _hash: &H256) -> Option<BlockReceipts> {
 			unimplemented!()
 		}
 
+		fn blocks_with_bloom(&self, _bloom: &H2048, _from_block: BlockNumber, _to_block: BlockNumber) -> Vec<BlockNumber> {
+			unimplemented!()
+		}
 
 		fn logs<F>(&self, _blocks: Vec<BlockNumber>, _matches: F, _limit: Option<usize>) -> Vec<LocalizedLogEntry>
 			where F: Fn(&LogEntry) -> bool, Self: Sized {

ethcore/types/src/receipt.rs

@@ -23,38 +23,56 @@ use rlp::*;
 use {BlockNumber};
 use log_entry::{LogBloom, LogEntry, LocalizedLogEntry};
 
+/// Transaction outcome store in the receipt.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum TransactionOutcome {
+	/// Status and state root are unknown under EIP-98 rules.
+	Unknown,
+	/// State root is known. Pre EIP-98 and EIP-658 rules.
+	StateRoot(H256),
+	/// Status code is known. EIP-658 rules.
+	StatusCode(u8),
+}
+
 /// Information describing execution of a transaction.
-#[derive(Default, Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Receipt {
-	/// The state root after executing the transaction. Optional since EIP98
-	pub state_root: Option<H256>,
 	/// The total gas used in the block following execution of the transaction.
 	pub gas_used: U256,
 	/// The OR-wide combination of all logs' blooms for this transaction.
 	pub log_bloom: LogBloom,
 	/// The logs stemming from this transaction.
 	pub logs: Vec<LogEntry>,
+	/// Transaction outcome.
+	pub outcome: TransactionOutcome,
 }
 
 impl Receipt {
 	/// Create a new receipt.
-	pub fn new(state_root: Option<H256>, gas_used: U256, logs: Vec<LogEntry>) -> Receipt {
+	pub fn new(outcome: TransactionOutcome, gas_used: U256, logs: Vec<LogEntry>) -> Receipt {
 		Receipt {
-			state_root: state_root,
 			gas_used: gas_used,
 			log_bloom: logs.iter().fold(LogBloom::default(), |mut b, l| { b = &b | &l.bloom(); b }), //TODO: use |= operator
 			logs: logs,
+			outcome: outcome,
 		}
 	}
 }
 
 impl Encodable for Receipt {
 	fn rlp_append(&self, s: &mut RlpStream) {
-		if let Some(ref root) = self.state_root {
-			s.begin_list(4);
-			s.append(root);
-		} else {
-			s.begin_list(3);
+		match self.outcome {
+			TransactionOutcome::Unknown => {
+				s.begin_list(3);
+			},
+			TransactionOutcome::StateRoot(ref root) => {
+				s.begin_list(4);
+				s.append(root);
+			},
+			TransactionOutcome::StatusCode(ref status_code) => {
+				s.begin_list(4);
+				s.append(status_code);
+			},
 		}
 		s.append(&self.gas_used);
 		s.append(&self.log_bloom);
@@ -66,17 +84,24 @@ impl Decodable for Receipt {
 	fn decode(rlp: &UntrustedRlp) -> Result<Self, DecoderError> {
 		if rlp.item_count()? == 3 {
 			Ok(Receipt {
-				state_root: None,
+				outcome: TransactionOutcome::Unknown,
 				gas_used: rlp.val_at(0)?,
 				log_bloom: rlp.val_at(1)?,
 				logs: rlp.list_at(2)?,
 			})
 		} else {
 			Ok(Receipt {
-				state_root: Some(rlp.val_at(0)?),
 				gas_used: rlp.val_at(1)?,
 				log_bloom: rlp.val_at(2)?,
 				logs: rlp.list_at(3)?,
+				outcome: {
+					let first = rlp.at(0)?;
+					if first.is_data() && first.data()?.len() <= 1 {
+						TransactionOutcome::StatusCode(first.as_val()?)
+					} else {
+						TransactionOutcome::StateRoot(first.as_val()?)
+					}
+				}
 			})
 		}
 	}
@@ -105,8 +130,8 @@ pub struct RichReceipt {
 	pub logs: Vec<LogEntry>,
 	/// Logs bloom
 	pub log_bloom: LogBloom,
-	/// State root
-	pub state_root: Option<H256>,
+	/// Transaction outcome.
+	pub outcome: TransactionOutcome,
 }
 
 /// Receipt with additional info.
@@ -130,20 +155,20 @@ pub struct LocalizedReceipt {
 	pub logs: Vec<LocalizedLogEntry>,
 	/// Logs bloom
 	pub log_bloom: LogBloom,
-	/// State root
-	pub state_root: Option<H256>,
+	/// Transaction outcome.
+	pub outcome: TransactionOutcome,
 }
 
 #[cfg(test)]
 mod tests {
-	use super::Receipt;
+	use super::{Receipt, TransactionOutcome};
 	use log_entry::LogEntry;
 
 	#[test]
 	fn test_no_state_root() {
 		let expected = ::rustc_hex::FromHex::from_hex("f9014183040caeb9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000f838f794dcf421d093428b096ca501a7cd1a740855a7976fc0a00000000000000000000000000000000000000000000000000000000000000000").unwrap();
 		let r = Receipt::new(
-			None,
+			TransactionOutcome::Unknown,
 			0x40cae.into(),
 			vec![LogEntry {
 				address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
@@ -158,7 +183,25 @@ mod tests {
 	fn test_basic() {
 		let expected = ::rustc_hex::FromHex::from_hex("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").unwrap();
 		let r = Receipt::new(
-			Some("2f697d671e9ae4ee24a43c4b0d7e15f1cb4ba6de1561120d43b9a4e8c4a8a6ee".into()),
+			TransactionOutcome::StateRoot("2f697d671e9ae4ee24a43c4b0d7e15f1cb4ba6de1561120d43b9a4e8c4a8a6ee".into()),
+			0x40cae.into(),
+			vec![LogEntry {
+				address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
+				topics: vec![],
+				data: vec![0u8; 32]
+			}]
+		);
+		let encoded = ::rlp::encode(&r);
+		assert_eq!(&encoded[..], &expected[..]);
+		let decoded: Receipt = ::rlp::decode(&encoded);
+		assert_eq!(decoded, r);
+	}
+
+	#[test]
+	fn test_status_code() {
+		let expected = ::rustc_hex::FromHex::from_hex("f901428083040caeb9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000f838f794dcf421d093428b096ca501a7cd1a740855a7976fc0a00000000000000000000000000000000000000000000000000000000000000000").unwrap();
+		let r = Receipt::new(
+			TransactionOutcome::StatusCode(0),
 			0x40cae.into(),
 			vec![LogEntry {
 				address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),

evmbin/Cargo.toml

@@ -14,6 +14,7 @@ docopt = "0.8"
 serde = "1.0"
 serde_derive = "1.0"
 ethcore = { path = "../ethcore" }
+ethjson = { path = "../json" }
 ethcore-util = { path = "../util" }
 evm = { path = "../ethcore/evm" }
 

evmbin/src/display/json.rs

@@ -30,10 +30,8 @@ pub struct Informant {
 	depth: usize,
 	pc: usize,
 	instruction: u8,
-	name: &'static str,
 	gas_cost: U256,
 	gas_used: U256,
-	stack_pop: usize,
 	stack: Vec<U256>,
 	memory: Vec<u8>,
 	storage: HashMap<H256, H256>,
@@ -58,11 +56,19 @@ impl Informant {
 }
 
 impl vm::Informant for Informant {
+	fn before_test(&self, name: &str, action: &str) {
+		println!(
+			"{{\"test\":\"{name}\",\"action\":\"{action}\"}}",
+			name = name,
+			action = action,
+		);
+	}
+
 	fn set_gas(&mut self, gas: U256) {
 		self.gas_used = gas;
 	}
 
-	fn finish(&mut self, result: Result<vm::Success, vm::Failure>) {
+	fn finish(result: Result<vm::Success, vm::Failure>) {
 		match result {
 			Ok(success) => println!(
 				"{{\"output\":\"0x{output}\",\"gasUsed\":\"{gas:x}\",\"time\":{time}}}",
@@ -112,7 +118,7 @@ impl trace::VMTracer for Informant {
 		self.gas_used = gas_used;
 
 		let len = self.stack.len();
-		self.stack.truncate(len - info.args);
+		self.stack.truncate(if len > info.args { len - info.args } else { 0 });
 		self.stack.extend_from_slice(stack_push);
 
 		if let Some((pos, data)) = mem_diff {

evmbin/src/display/simple.rs

@@ -27,7 +27,11 @@ use vm;
 pub struct Informant;
 
 impl vm::Informant for Informant {
-	fn finish(&mut self, result: Result<vm::Success, vm::Failure>) {
+	fn before_test(&self, name: &str, action: &str) {
+		println!("Test: {} ({})", name, action);
+	}
+
+	fn finish(result: Result<vm::Success, vm::Failure>) {
 		match result {
 			Ok(success) => {
 				println!("Output: 0x{}", success.output.to_hex());

evmbin/src/main.rs

@@ -17,8 +17,9 @@
 //! Parity EVM interpreter binary.
 
 #![warn(missing_docs)]
-#![allow(dead_code)]
+
 extern crate ethcore;
+extern crate ethjson;
 extern crate rustc_hex;
 extern crate serde;
 #[macro_use]
@@ -29,6 +30,7 @@ extern crate evm;
 
 use std::sync::Arc;
 use std::{fmt, fs};
+use std::path::PathBuf;
 use docopt::Docopt;
 use rustc_hex::FromHex;
 use util::{U256, Bytes, Address};
@@ -48,6 +50,7 @@ Usage:
     evmbin stats [options]
     evmbin [options]
     evmbin [-h | --help]
+    evmbin state-test <file> [--json --only NAME --chain CHAIN]
 
 Transaction options:
     --code CODE        Contract code as hex (without 0x).
@@ -55,6 +58,10 @@ Transaction options:
     --input DATA       Input data as hex (without 0x).
     --gas GAS          Supplied gas as hex (without 0x).
 
+State test options:
+    --only NAME        Runs only a single test matching the name.
+    --chain CHAIN      Run only tests from specific chain.
+
 General options:
     --json             Display verbose results in JSON.
     --chain CHAIN      Chain spec file path.
@@ -65,14 +72,61 @@ General options:
 fn main() {
 	let args: Args = Docopt::new(USAGE).and_then(|d| d.deserialize()).unwrap_or_else(|e| e.exit());
 
-	if args.flag_json {
-		run(args, display::json::Informant::default())
+	if args.cmd_state_test {
+		run_state_test(args)
+	} else if args.flag_json {
+		run_call(args, display::json::Informant::default())
 	} else {
-		run(args, display::simple::Informant::default())
+		run_call(args, display::simple::Informant::default())
 	}
 }
 
-fn run<T: Informant>(args: Args, mut informant: T) {
+fn run_state_test(args: Args) {
+	use ethjson::state::test::Test;
+
+	let file = args.arg_file.expect("FILE is required");
+	let mut file = match fs::File::open(&file) {
+		Err(err) => die(format!("Unable to open: {:?}: {}", file, err)),
+		Ok(file) => file,
+	};
+	let state_test = match Test::load(&mut file) {
+		Err(err) => die(format!("Unable to load the test file: {}", err)),
+		Ok(test) => test,
+	};
+	let only_test = args.flag_only.map(|s| s.to_lowercase());
+	let only_chain = args.flag_chain.map(|s| s.to_lowercase());
+
+	for (name, test) in state_test {
+		if let Some(false) = only_test.as_ref().map(|only_test| &name.to_lowercase() == only_test) {
+			continue;
+		}
+
+		let multitransaction = test.transaction;
+		let env_info = test.env.into();
+		let pre = test.pre_state.into();
+
+		for (spec, states) in test.post_states {
+			if let Some(false) = only_chain.as_ref().map(|only_chain| &format!("{:?}", spec).to_lowercase() == only_chain) {
+				continue;
+			}
+
+			for (idx, state) in states.into_iter().enumerate() {
+				let post_root = state.hash.into();
+				let transaction = multitransaction.select(&state.indexes).into();
+
+				if args.flag_json {
+					let i = display::json::Informant::default();
+					vm::run_transaction(&name, idx, &spec, &pre, post_root, &env_info, transaction, i)
+				} else {
+					let i = display::simple::Informant::default();
+					vm::run_transaction(&name, idx, &spec, &pre, post_root, &env_info, transaction, i)
+				}
+			}
+		}
+	}
+}
+
+fn run_call<T: Informant>(args: Args, mut informant: T) {
 	let from = arg(args.from(), "--from");
 	let code = arg(args.code(), "--code");
 	let spec = arg(args.spec(), "--chain");
@@ -87,18 +141,24 @@ fn run<T: Informant>(args: Args, mut informant: T) {
 	params.data = data;
 
 	informant.set_gas(gas);
-	let result = vm::run(&mut informant, spec, params);
-	informant.finish(result);
+	let result = vm::run(&spec, gas, None, |mut client| {
+		client.call(params, &mut informant).map(|r| (r.gas_left, r.return_data.to_vec()))
+	});
+	T::finish(result);
 }
 
 #[derive(Debug, Deserialize)]
 struct Args {
 	cmd_stats: bool,
+	cmd_state_test: bool,
+	arg_file: Option<PathBuf>,
+	flag_only: Option<String>,
 	flag_from: Option<String>,
 	flag_code: Option<String>,
 	flag_gas: Option<String>,
 	flag_input: Option<String>,
 	flag_spec: Option<String>,
+	flag_chain: Option<String>,
 	flag_json: bool,
 }
 
@@ -156,3 +216,55 @@ fn die<T: fmt::Display>(msg: T) -> ! {
 	println!("{}", msg);
 	::std::process::exit(-1)
 }
+
+#[cfg(test)]
+mod tests {
+	use docopt::Docopt;
+	use super::{Args, USAGE};
+
+	fn run<T: AsRef<str>>(args: &[T]) -> Args {
+		Docopt::new(USAGE).and_then(|d| d.argv(args.into_iter()).deserialize()).unwrap()
+	}
+
+	#[test]
+	fn should_parse_all_the_options() {
+		let args = run(&[
+			"parity-evm",
+			"--json",
+			"--gas", "1",
+			"--gas-price", "2",
+			"--from", "0000000000000000000000000000000000000003",
+			"--to", "0000000000000000000000000000000000000004",
+			"--code", "05",
+			"--input", "06",
+			"--chain", "./testfile",
+		]);
+
+		assert_eq!(args.flag_json, true);
+		assert_eq!(args.gas(), Ok(1.into()));
+		assert_eq!(args.gas_price(), Ok(2.into()));
+		assert_eq!(args.from(), Ok(3.into()));
+		assert_eq!(args.to(), Ok(4.into()));
+		assert_eq!(args.code(), Ok(Some(vec![05])));
+		assert_eq!(args.data(), Ok(Some(vec![06])));
+		assert_eq!(args.flag_chain, Some("./testfile".to_owned()));
+	}
+
+	#[test]
+	fn should_parse_state_test_command() {
+		let args = run(&[
+			"parity-evm",
+			"state-test",
+			"./file.json",
+			"--chain", "homestead",
+			"--only=add11",
+			"--json",
+		]);
+
+		assert_eq!(args.cmd_state_test, true);
+		assert!(args.arg_file.is_some());
+		assert_eq!(args.flag_json, true);
+		assert_eq!(args.flag_chain, Some("homestead".to_owned()));
+		assert_eq!(args.flag_only, Some("add11".to_owned()));
+	}
+}

evmbin/src/vm.rs

@@ -17,17 +17,19 @@
 //! VM runner.
 
 use std::time::{Instant, Duration};
-use util::U256;
-use ethcore::{trace, spec};
-use ethcore::client::{EvmTestClient, EvmTestError};
-use evm::action_params::ActionParams;
+use util::{U256, H256};
+use ethcore::{trace, spec, transaction, pod_state};
+use ethcore::client::{self, EvmTestClient, EvmTestError, TransactResult};
+use ethjson;
 
 /// VM execution informant
 pub trait Informant: trace::VMTracer {
+	/// Display a single run init message
+	fn before_test(&self, test: &str, action: &str);
 	/// Set initial gas.
 	fn set_gas(&mut self, _gas: U256) {}
 	/// Display final result.
-	fn finish(&mut self, result: Result<Success, Failure>);
+	fn finish(result: Result<Success, Failure>);
 }
 
 /// Execution finished correctly
@@ -50,17 +52,71 @@ pub struct Failure {
 	pub time: Duration,
 }
 
+/// Execute given Transaction and verify resulting state root.
+pub fn run_transaction<T: Informant>(
+	name: &str,
+	idx: usize,
+	spec: &ethjson::state::test::ForkSpec,
+	pre_state: &pod_state::PodState,
+	post_root: H256,
+	env_info: &client::EnvInfo,
+	transaction: transaction::SignedTransaction,
+	mut informant: T,
+) {
+	let spec_name = format!("{:?}", spec).to_lowercase();
+	let spec = match EvmTestClient::spec_from_json(spec) {
+		Some(spec) => {
+			informant.before_test(&format!("{}:{}:{}", name, spec_name, idx), "starting");
+			spec
+		},
+		None => {
+			informant.before_test(&format!("{}:{}:{}", name, spec_name, idx), "skipping because of missing spec");
+			return;
+		},
+	};
+
+	informant.set_gas(env_info.gas_limit);
+
+	let result = run(spec, env_info.gas_limit, pre_state, |mut client| {
+		let result = client.transact(env_info, transaction, informant);
+		match result {
+			TransactResult::Ok { state_root, .. } if state_root != post_root => {
+				Err(EvmTestError::PostCondition(format!(
+					"State root mismatch (got: {}, expected: {})",
+					state_root,
+					post_root,
+				)))
+			},
+			TransactResult::Ok { gas_left, output, .. } => {
+				Ok((gas_left, output))
+			},
+			TransactResult::Err { error, .. } => {
+				Err(EvmTestError::PostCondition(format!(
+					"Unexpected execution error: {:?}", error
+				)))
+			},
+		}
+	});
+
+	T::finish(result)
+}
+
 /// Execute VM with given `ActionParams`
-pub fn run<T: trace::VMTracer>(vm_tracer: &mut T, spec: spec::Spec, params: ActionParams) -> Result<Success, Failure> {
-	let mut test_client = EvmTestClient::new(spec).map_err(|error| Failure {
+pub fn run<'a, F, T>(spec: &'a spec::Spec, initial_gas: U256, pre_state: T, run: F) -> Result<Success, Failure> where
+	F: FnOnce(EvmTestClient) -> Result<(U256, Vec<u8>), EvmTestError>,
+	T: Into<Option<&'a pod_state::PodState>>,
+{
+	let test_client = match pre_state.into() {
+		Some(pre_state) => EvmTestClient::from_pod_state(spec, pre_state.clone()),
+		None => EvmTestClient::new(spec),
+	}.map_err(|error| Failure {
 		gas_used: 0.into(),
 		error,
 		time: Duration::from_secs(0)
 	})?;
 
-	let initial_gas = params.gas;
 	let start = Instant::now();
-	let result = test_client.call(params, vm_tracer);
+	let result = run(test_client);
 	let duration = start.elapsed();
 
 	match result {

hw/src/ledger.rs

@@ -25,6 +25,7 @@ use std::time::Duration;
 use super::WalletInfo;
 use ethkey::{Address, Signature};
 use bigint::hash::H256;
+use parking_lot::{Mutex, RwLock};
 
 const LEDGER_VID: u16 = 0x2c97;
 const LEDGER_PIDS: [u16; 2] = [0x0000, 0x0001]; // Nano S and Blue
@@ -84,11 +85,14 @@ impl From<hidapi::HidError> for Error {
 
 /// Ledger device manager.
 pub struct Manager {
-	usb: hidapi::HidApi,
-	devices: Vec<Device>,
+	// always lock in that order
+	usb: Mutex<hidapi::HidApi>,
+	devices: RwLock<Vec<Device>>,
 	key_path: KeyPath,
 }
 
+
+
 #[derive(Debug)]
 struct Device {
 	path: String,
@@ -96,20 +100,21 @@ struct Device {
 }
 
 impl Manager {
-	/// Create a new instance.
-	pub fn new() -> Result<Manager, Error> {
+	/// Create a new instance with given
+	pub fn new(key_path: KeyPath) -> Result<Manager, Error> {
 		let manager = Manager {
-			usb: hidapi::HidApi::new()?,
-			devices: Vec::new(),
-			key_path: KeyPath::Ethereum,
+			usb: Mutex::new(hidapi::HidApi::new()?),
+			devices: RwLock::new(Vec::new()),
+			key_path,
 		};
 		Ok(manager)
 	}
 
 	/// Re-populate device list. Only those devices that have Ethereum app open will be added.
-	pub fn update_devices(&mut self) -> Result<usize, Error> {
-		self.usb.refresh_devices();
-		let devices = self.usb.devices();
+	pub fn update_devices(&self) -> Result<usize, Error> {
+		let mut usb = self.usb.lock();
+		usb.refresh_devices();
+		let devices = usb.devices();
 		let mut new_devices = Vec::new();
 		let mut num_new_devices = 0;
 		for device in devices {
@@ -117,10 +122,10 @@ impl Manager {
 			if device.vendor_id != LEDGER_VID || !LEDGER_PIDS.contains(&device.product_id) {
 				continue;
 			}
-			match self.read_device_info(&device) {
+			match self.read_device_info(&device, &mut usb) {
 				Ok(info) => {
 					debug!("Found device: {:?}", info);
-					if !self.devices.iter().any(|d| d.path == info.path) {
+					if !self.devices.read().iter().any(|d| d.path == info.path) {
 						num_new_devices += 1;
 					}
 					new_devices.push(info);
@@ -129,17 +134,12 @@ impl Manager {
 				Err(e) => debug!("Error reading device info: {}", e),
 			};
 		}
-		self.devices = new_devices;
+		*self.devices.write() = new_devices;
 		Ok(num_new_devices)
 	}
 
-	/// Select key derivation path for a known chain.
-	pub fn set_key_path(&mut self, key_path: KeyPath) {
-		self.key_path = key_path;
-	}
-
-	fn read_device_info(&self, dev_info: &hidapi::HidDeviceInfo) -> Result<Device, Error> {
-		let mut handle = self.open_path(&dev_info.path)?;
+	fn read_device_info(&self, dev_info: &hidapi::HidDeviceInfo, usb: &mut hidapi::HidApi) -> Result<Device, Error> {
+		let mut handle = self.open_path(&dev_info.path, usb)?;
 		let address = Self::read_wallet_address(&mut handle, self.key_path)?;
 		let manufacturer = dev_info.manufacturer_string.clone().unwrap_or("Unknown".to_owned());
 		let name = dev_info.product_string.clone().unwrap_or("Unknown".to_owned());
@@ -187,20 +187,23 @@ impl Manager {
 
 	/// List connected wallets. This only returns wallets that are ready to be used.
 	pub fn list_devices(&self) -> Vec<WalletInfo> {
-		self.devices.iter().map(|d| d.info.clone()).collect()
+		self.devices.read().iter().map(|d| d.info.clone()).collect()
 	}
 
 	/// Get wallet info.
 	pub fn device_info(&self, address: &Address) -> Option<WalletInfo> {
-		self.devices.iter().find(|d| &d.info.address == address).map(|d| d.info.clone())
+		self.devices.read().iter().find(|d| &d.info.address == address).map(|d| d.info.clone())
 	}
 
 	/// Sign transaction data with wallet managing `address`.
 	pub fn sign_transaction(&self, address: &Address, data: &[u8]) -> Result<Signature, Error> {
-		let device = self.devices.iter().find(|d| &d.info.address == address)
+		// mind the lock order
+		let mut usb = self.usb.lock();
+		let devices = self.devices.read();
+		let device = devices.iter().find(|d| &d.info.address == address)
 			.ok_or(Error::KeyNotFound)?;
 
-		let handle = self.open_path(&device.path)?;
+		let handle = self.open_path(&device.path, &mut usb)?;
 
 		let eth_path = &ETH_DERIVATION_PATH_BE[..];
 		let etc_path = &ETC_DERIVATION_PATH_BE[..];
@@ -236,11 +239,11 @@ impl Manager {
 		Ok(Signature::from_rsv(&r, &s, v))
 	}
 
-	fn open_path(&self, path: &str) -> Result<hidapi::HidDevice, Error> {
+	fn open_path<'a>(&self, path: &str, usb: &'a mut hidapi::HidApi) -> Result<hidapi::HidDevice<'a>, Error> {
 		let mut err = Error::KeyNotFound;
 		/// Try to open device a few times.
 		for _ in 0..10 {
-			match self.usb.open_path(&path) {
+			match usb.open_path(&path) {
 				Ok(handle) => return Ok(handle),
 				Err(e) => err = From::from(e),
 			}
@@ -340,10 +343,12 @@ impl Manager {
 
 #[test]
 fn smoke() {
+	use super::KeyPath;
 	use rustc_hex::FromHex;
-	let mut manager = Manager::new().unwrap();
+
+	let manager = Manager::new(KeyPath::Ethereum).unwrap();
 	manager.update_devices().unwrap();
-	for d in &manager.devices {
+	for d in &*manager.devices.read() {
 		println!("Device: {:?}", d);
 	}
 

hw/src/lib.rs

@@ -32,7 +32,6 @@ use std::sync::atomic;
 use std::sync::{Arc, Weak};
 use std::sync::atomic::AtomicBool;
 use std::time::Duration;
-use parking_lot::Mutex;
 use ethkey::{Address, Signature};
 
 pub use ledger::KeyPath;
@@ -90,11 +89,11 @@ impl From<libusb::Error> for Error {
 pub struct HardwareWalletManager {
 	update_thread: Option<thread::JoinHandle<()>>,
 	exiting: Arc<AtomicBool>,
-	ledger: Arc<Mutex<ledger::Manager>>,
+	ledger: Arc<ledger::Manager>,
 }
 
 struct EventHandler {
-	ledger: Weak<Mutex<ledger::Manager>>,
+	ledger: Weak<ledger::Manager>,
 }
 
 impl libusb::Hotplug for EventHandler {
@@ -103,7 +102,7 @@ impl libusb::Hotplug for EventHandler {
 		if let Some(l) = self.ledger.upgrade() {
 			for _ in 0..10 {
 				// The device might not be visible right away. Try a few times.
-				if l.lock().update_devices().unwrap_or_else(|e| {
+				if l.update_devices().unwrap_or_else(|e| {
 					debug!("Error enumerating Ledger devices: {}", e);
 					0
 				}) > 0 {
@@ -117,7 +116,7 @@ impl libusb::Hotplug for EventHandler {
 	fn device_left(&mut self, _device: libusb::Device) {
 		debug!("USB Device lost");
 		if let Some(l) = self.ledger.upgrade() {
-			if let Err(e) = l.lock().update_devices() {
+			if let Err(e) = l.update_devices() {
 				debug!("Error enumerating Ledger devices: {}", e);
 			}
 		}
@@ -125,15 +124,15 @@ impl libusb::Hotplug for EventHandler {
 }
 
 impl HardwareWalletManager {
-	pub fn new() -> Result<HardwareWalletManager, Error> {
+	pub fn new(key_path: KeyPath) -> Result<HardwareWalletManager, Error> {
 		let usb_context = Arc::new(libusb::Context::new()?);
-		let ledger = Arc::new(Mutex::new(ledger::Manager::new()?));
+		let ledger = Arc::new(ledger::Manager::new(key_path)?);
 		usb_context.register_callback(None, None, None, Box::new(EventHandler { ledger: Arc::downgrade(&ledger) }))?;
 		let exiting = Arc::new(AtomicBool::new(false));
 		let thread_exiting = exiting.clone();
 		let l = ledger.clone();
 		let thread = thread::Builder::new().name("hw_wallet".to_string()).spawn(move || {
-			if let Err(e) = l.lock().update_devices() {
+			if let Err(e) = l.update_devices() {
 				debug!("Error updating ledger devices: {}", e);
 			}
 			loop {
@@ -150,25 +149,19 @@ impl HardwareWalletManager {
 		})
 	}
 
-	/// Select key derivation path for a chain.
-	pub fn set_key_path(&self, key_path: KeyPath) {
-		self.ledger.lock().set_key_path(key_path);
-	}
-
-
 	/// List connected wallets. This only returns wallets that are ready to be used.
 	pub fn list_wallets(&self) -> Vec<WalletInfo> {
-		self.ledger.lock().list_devices()
+		self.ledger.list_devices()
 	}
 
 	/// Get connected wallet info.
 	pub fn wallet_info(&self, address: &Address) -> Option<WalletInfo> {
-		self.ledger.lock().device_info(address)
+		self.ledger.device_info(address)
 	}
 
 	/// Sign transaction data with wallet managing `address`.
 	pub fn sign_transaction(&self, address: &Address, data: &[u8]) -> Result<Signature, Error> {
-		Ok(self.ledger.lock().sign_transaction(address, data)?)
+		Ok(self.ledger.sign_transaction(address, data)?)
 	}
 }
 

js/package.json

@@ -209,7 +209,7 @@
     "react-intl": "2.1.5",
     "react-markdown": "2.4.4",
     "react-portal": "3.0.0",
-    "react-qr-reader": "1.0.3",
+    "react-qr-reader": "1.1.3",
     "react-redux": "4.4.6",
     "react-router": "3.0.0",
     "react-router-redux": "4.0.7",

js/src/api/api.js

@@ -71,10 +71,15 @@ export default class Api extends EventEmitter {
     }
   }
 
+  get isPubSub () {
+    return !!this._pubsub;
+  }
+
   get pubsub () {
-    if (!this._pubsub) {
+    if (!this.isPubSub) {
       throw Error('Pubsub is only available with a subscribing-supported transport injected!');
     }
+
     return this._pubsub;
   }
 

js/src/api/pubsub/eth/eth.js

@@ -25,7 +25,7 @@ export default class Eth extends PubsubBase {
   }
 
   newHeads (callback) {
-    return this.addListener('eth', 'newHeads', callback);
+    return this.addListener('eth', 'newHeads', callback, null);
   }
 
   logs (callback) {

js/src/api/pubsub/parity/parity.js

@@ -266,7 +266,7 @@ export default class Parity extends PubsubBase {
 
   // parity accounts API (only secure API or configured to be exposed)
   allAccountsInfo (callback) {
-    return this._addListener(this._api, 'parity_allAccountsInfo', (error, data) => {
+    return this.addListener(this._api, 'parity_allAccountsInfo', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAccountInfo(data));
@@ -274,7 +274,7 @@ export default class Parity extends PubsubBase {
   }
 
   getDappAddresses (callback, dappId) {
-    return this._addListener(this._api, 'parity_getDappAddresses', (error, data) => {
+    return this.addListener(this._api, 'parity_getDappAddresses', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddresses(data));
@@ -282,7 +282,7 @@ export default class Parity extends PubsubBase {
   }
 
   getDappDefaultAddress (callback, dappId) {
-    return this._addListener(this._api, 'parity_getDappDefaultAddress', (error, data) => {
+    return this.addListener(this._api, 'parity_getDappDefaultAddress', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddress(data));
@@ -290,7 +290,7 @@ export default class Parity extends PubsubBase {
   }
 
   getNewDappsAddresses (callback) {
-    return this._addListener(this._api, 'parity_getDappDefaultAddress', (error, addresses) => {
+    return this.addListener(this._api, 'parity_getDappDefaultAddress', (error, addresses) => {
       error
         ? callback(error)
         : callback(null, addresses ? addresses.map(outAddress) : null);
@@ -298,7 +298,7 @@ export default class Parity extends PubsubBase {
   }
 
   getNewDappsDefaultAddress (callback) {
-    return this._addListener(this._api, 'parity_getNewDappsDefaultAddress', (error, data) => {
+    return this.addListener(this._api, 'parity_getNewDappsDefaultAddress', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddress(data));
@@ -306,7 +306,7 @@ export default class Parity extends PubsubBase {
   }
 
   listRecentDapps (callback) {
-    return this._addListener(this._api, 'parity_listRecentDapps', (error, data) => {
+    return this.addListener(this._api, 'parity_listRecentDapps', (error, data) => {
       error
         ? callback(error)
         : callback(null, outRecentDapps(data));
@@ -314,7 +314,7 @@ export default class Parity extends PubsubBase {
   }
 
   listGethAccounts (callback) {
-    return this._addListener(this._api, 'parity_listGethAccounts', (error, data) => {
+    return this.addListener(this._api, 'parity_listGethAccounts', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddresses(data));
@@ -322,15 +322,15 @@ export default class Parity extends PubsubBase {
   }
 
   listVaults (callback) {
-    return this._addListener(this._api, 'parity_listVaults', callback);
+    return this.addListener(this._api, 'parity_listVaults', callback);
   }
 
   listOpenedVaults (callback) {
-    return this._addListener(this._api, 'parity_listOpenedVaults', callback);
+    return this.addListener(this._api, 'parity_listOpenedVaults', callback);
   }
 
   getVaultMeta (callback, vaultName) {
-    return this._addListener(this._api, 'parity_getVaultMeta', (error, data) => {
+    return this.addListener(this._api, 'parity_getVaultMeta', (error, data) => {
       error
         ? callback(error)
         : callback(null, outVaultMeta(data));
@@ -338,7 +338,7 @@ export default class Parity extends PubsubBase {
   }
 
   deriveAddressHash (callback, address, password, hash, shouldSave) {
-    return this._addListener(this._api, 'parity_deriveAddressHash', (error, data) => {
+    return this.addListener(this._api, 'parity_deriveAddressHash', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddress(data));
@@ -346,10 +346,18 @@ export default class Parity extends PubsubBase {
   }
 
   deriveAddressIndex (callback, address, password, index, shouldSave) {
-    return this._addListener(this._api, 'parity_deriveAddressIndex', (error, data) => {
+    return this.addListener(this._api, 'parity_deriveAddressIndex', (error, data) => {
       error
         ? callback(error)
         : callback(null, outAddress(data));
     }, [inAddress(address), password, inDeriveIndex(index), !!shouldSave]);
   }
+
+  nodeHealth (callback) {
+    return this.addListener(this._api, 'parity_nodeHealth', (error, data) => {
+      error
+        ? callback(error)
+        : callback(null, data);
+    });
+  }
 }

js/src/api/pubsub/pubsub.js

@@ -16,6 +16,7 @@
 
 import Eth from './eth';
 import Parity from './parity';
+import Signer from './signer';
 import Net from './net';
 
 import { isFunction } from '../util/types';
@@ -29,6 +30,7 @@ export default class Pubsub {
     this._eth = new Eth(transport);
     this._net = new Net(transport);
     this._parity = new Parity(transport);
+    this._signer = new Signer(transport);
   }
 
   get net () {
@@ -43,8 +45,35 @@ export default class Pubsub {
     return this._parity;
   }
 
+  get signer () {
+    return this._signer;
+  }
+
   unsubscribe (subscriptionIds) {
     // subscriptions are namespace independent. Thus we can simply removeListener from any.
     return this._parity.removeListener(subscriptionIds);
   }
+
+  subscribeAndGetResult (f, callback) {
+    return new Promise((resolve, reject) => {
+      let isFirst = true;
+      let onSubscription = (error, data) => {
+        const p1 = error ? Promise.reject(error) : Promise.resolve(data);
+        const p2 = p1.then(callback);
+
+        if (isFirst) {
+          isFirst = false;
+          p2
+            .then(resolve)
+            .catch(reject);
+        }
+      };
+
+      try {
+        f.call(this, onSubscription).catch(reject);
+      } catch (err) {
+        reject(err);
+      }
+    });
+  }
 }

js/src/api/pubsub/pubsubBase.js

@@ -20,11 +20,12 @@ export default class PubsubBase {
     this._transport = transport;
   }
 
-  addListener (module, eventName, callback, eventParams) {
-    return eventParams
-     ? this._transport.subscribe(module, callback, eventName, eventParams)
-     : this._transport.subscribe(module, callback, eventName, []);
-    // this._transport.subscribe(module, callback, eventName);  After Patch from tomac is merged to master! =>  eth_subscribe does not support empty array as params
+  addListener (module, eventName, callback, eventParams = []) {
+    if (eventName) {
+      return this._transport.subscribe(module, callback, eventParams ? [eventName, eventParams] : [eventName]);
+    }
+
+    return this._transport.subscribe(module, callback, eventParams);
   }
 
   removeListener (subscriptionIds) {

js/src/api/pubsub/signer/index.js

@@ -0,0 +1,16 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+export default from './signer';

js/src/api/pubsub/signer/signer.js

@@ -0,0 +1,37 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+import PubsubBase from '../pubsubBase';
+
+import { outSignerRequest } from '../../format/output';
+
+export default class Net extends PubsubBase {
+  constructor (transport) {
+    super(transport);
+    this._api = {
+      subscribe: 'signer_subscribePending',
+      unsubscribe: 'signer_unsubscribePending',
+      subscription: 'signer_pending'
+    };
+  }
+
+  pendingRequests (callback) {
+    return this.addListener(this._api, null, (error, data) => {
+      error
+        ? callback(error)
+        : callback(null, data.map(outSignerRequest));
+    });
+  }
+}

js/src/api/rpc/parity/parity.js

@@ -44,6 +44,15 @@ export default class Parity {
       .execute('parity_addReservedPeer', enode);
   }
 
+  call (requests, blockNumber = 'latest') {
+    return this._transport
+      .execute(
+        'parity_call',
+        requests.map((options) => inOptions(options)),
+        inBlockNumber(blockNumber)
+      );
+  }
+
   chainStatus () {
     return this._transport
       .execute('parity_chainStatus')
@@ -380,6 +389,11 @@ export default class Parity {
       .then(outNumber);
   }
 
+  nodeHealth () {
+    return this._transport
+      .execute('parity_nodeHealth');
+  }
+
   nodeName () {
     return this._transport
       .execute('parity_nodeName');

js/src/api/subscriptions/eth.js

@@ -24,6 +24,13 @@ export default class Eth {
 
     this._lastBlock = new BigNumber(-1);
     this._pollTimerId = null;
+
+    // Try to restart subscription if transport is closed
+    this._api.transport.on('close', () => {
+      if (this.isStarted) {
+        this.start();
+      }
+    });
   }
 
   get isStarted () {
@@ -33,31 +40,56 @@ export default class Eth {
   start () {
     this._started = true;
 
-    return this._blockNumber();
+    if (this._api.isPubSub) {
+      return Promise.all([
+        this._pollBlockNumber(false),
+        this._api.pubsub
+          .subscribeAndGetResult(
+            callback => this._api.pubsub.eth.newHeads(callback),
+            () => {
+              return this._api.eth
+                .blockNumber()
+                .then(blockNumber => {
+                  this.updateBlock(blockNumber);
+                  return blockNumber;
+                });
+            }
+          )
+      ]);
+    }
+
+    // fallback to polling
+    return this._pollBlockNumber(true);
   }
 
-  _blockNumber = () => {
-    const nextTimeout = (timeout = 1000) => {
-      this._pollTimerId = setTimeout(() => {
-        this._blockNumber();
-      }, timeout);
+  _pollBlockNumber = (doTimeout) => {
+    const nextTimeout = (timeout = 1000, forceTimeout = doTimeout) => {
+      if (forceTimeout) {
+        this._pollTimerId = setTimeout(() => {
+          this._pollBlockNumber(doTimeout);
+        }, timeout);
+      }
     };
 
     if (!this._api.transport.isConnected) {
-      nextTimeout(500);
+      nextTimeout(500, true);
       return;
     }
 
     return this._api.eth
       .blockNumber()
       .then((blockNumber) => {
-        if (!blockNumber.eq(this._lastBlock)) {
-          this._lastBlock = blockNumber;
-          this._updateSubscriptions('eth_blockNumber', null, blockNumber);
-        }
+        this.updateBlock(blockNumber);
 
         nextTimeout();
       })
       .catch(() => nextTimeout());
   }
+
+  updateBlock (blockNumber) {
+    if (!blockNumber.eq(this._lastBlock)) {
+      this._lastBlock = blockNumber;
+      this._updateSubscriptions('eth_blockNumber', null, blockNumber);
+    }
+  }
 }