Fixes #833

* introduce candidatedescriptor type

* add PoVDistribution message type

* loosen bound on PoV Distribution to account for equivocations

* re-export some types from the messages module

* begin PoV Distribution subsystem

* remove redundant index from PoV distribution

* define state machine for pov distribution

* handle overseer signals

* set up control flow

* remove `ValidatorStatement` section

* implement PoV fetching

* implement distribution logic

* add missing `

* implement some network bridge event handlers

* stub for message processing, handle our view change

* control flow for handling messages

* handle `awaiting` message

* handle any incoming PoVs and redistribute

* actually provide a subsystem implementation

* remove set-builder notation

* begin testing PoV distribution

* test that we send awaiting messages only to peers with same view

* ensure we distribute awaited PoVs to peers on view changes

* test that peers can complete fetch and are rewarded

* test some reporting logic

* ensure peer is reported for flooding

* test punishing peers diverging from awaited protocol

* test that we eagerly complete peers' awaited PoVs based on what we receive

* test that we prune the awaited set after receiving

* expand pov-distribution in guide to match a change I made

* remove unneeded import

* set up data types and control flow for statement distribution

* add some set-like methods to View

* implement sending to peers

* start fixing equivocation handling

* Add a section to the statement distribution subsystem on equivocations and flood protection

* fix typo and amend wording

* implement flood protection

* have peer knowledge tracker follow when peer first learns about a candidate

* send dependents after circulating

* add another TODO

* trigger send in one more place

* refactors from review

* send new statements to candidate backing

* instantiate active head data with runtime API values

* track our view changes and peer view changes

* apply a benefit to peers who send us statements we want

* remove unneeded TODO

* add some comments and improve Hash implementation

* start tests and fix `note_statement`

* test active_head seconding logic

* test that the per-peer tracking logic works

* test per-peer knowledge tracker

* test that peer view updates lead to messages being sent

* test statement circulation

* address review comments

* have view set methods return references

* network bridge skeleton

* move some primitives around and add debug impls

* protocol registration glue & abstract network interface

* add send_msgs to subsystemctx

* select logic

* transform different events into actions and handle

* implement remaining network bridge state machine

* start test skeleton

* make network methods asynchronous

* extract subsystem out to subsystem crate

* port over overseer to subsystem context trait

* fix minimal example

* fix overseer doc test

* update network-bridge crate

* write a subsystem test-helpers crate

* write a network test helper for network-bridge

* set up (broken) view test

* Revamp network to be more async-friendly and not require Sync

* fix spacing

* fix test compilation

* insert side-channel for actions

* Add some more message types to AllMessages

* introduce a test harness

* impl ProvideInherent for InclusionInherent

* reduce import churn; correct expect message

* move inclusion inherent identifier into primitives

It's not clear precisely why this is desired, but it's a pattern
I've seen in several places, so I'm going this to be on the
safe side. Worst case, we can revert this commit pretty easily.

* bump kusama spec_version to placate CI

* copy sc_basic_authorship::{ProposerFactory, Proposer}

We have from the problem description:

> This Proposer will require an OverseerHandle to make requests via.

That's next on the plate.

* use polkadot custom proposer instead of basic-authorship one

* add some tests

* ensure service compiles and passes tests

* fix typo

* fix service-new compilation

* Subsystem test helpers send messages synchronously

* remove smelly action inspector

* remove superfluous let binding

* fix warnings

* add license header

* empty commit; maybe github will notice the one with changes

* Update node/network/bridge/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* add sanity check to only include valid inherents

* stub: encapsulate block production mechanics instead of copying them

The goal is to end up with something like what's in
validation::block_production::*, which encapsulates
basic block production mechanics. This is a better idea than
just straight-up copying those mechanics.

* partial implementation of propose fn

Doesn't actually compile yet; need to bring in some other
commits to ensure ProvisionerMessage is a thing, and also
figure out how to get the block hash given the current
context.

* fix compilation

* clear a few more compile errors

* finish fn propose

* broken: add timeout to proposal

* add timeout to proposal

* guide: provisioner is responsible for selecting parachain candidates

* implement ProvisionerMessage::RequestInherentData & update fn propose

* impl CreateProposer::init; clean up

* impl std::error::Error for Error

* document error-handling rationale

* cause polkadot-service-new to compile correctly

* Move potentially-blocking call from fn init -> fn propose

This means that we can wrap the delayed call into the same
timeout check used elsewhere.

* document struct Proposer

* extract provisioner data fetch

This satisfies two requirements:

- only applies the timeout to actually fetching the provisioner data,
  not to constructing the block after
- simplifies the problem of injecting default data if we could not
  get the real provisioner data in time.

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
Co-authored-by: Gavin Wood <gavin@parity.io>

* Switch branch

* Return chain ops parts in new_chain_ops

* Remove where param from new_chain_ops

* Add task manager to new_chain_ops return

* Revert branch switch

* Revert "Revert branch switch"

This reverts commit 7c7900c0.

* network/test/src/lib: Adjust network worker polling

Companion for https://github.com/paritytech/substrate/pull/6552

.

* Fix adder parachain

* Fix collator tests

* Revert branch switch

* Bump everything

- Remove old migration code
- Reduce deposit requried for westend

* Reapply fixes

* Bump locl

* Fix for #6550

* Fix message

Co-authored-by: Ashley Ruglys <ashley.ruglys@gmail.com>
Co-authored-by: Max Inden <mail@max-inden.de>

* Downward messages, the front-end.

* Move types around to make them accessible from Parachains

* Fix compilation

* Fix branch

* Make it compile for Cumulus

* Update the branch names

* Add default generic parameter

* Implement `Partialeq`

* Move upward messages into the `ValidationResult`

* Support disabling of the runtime api

* Update branch

* Adds support for handling downward messages

* Implement sending XCMP messages as up/downward messages

* service: update to latest ServiceBuilder changes

* Make it compile

* Initial commit

Forked at: b2c9c149


Parent branch: origin/master

* Update substrate branch to cecton-update-polkadot-substrate

* Update substrate & polkadot to cumulus-branch

* Reset branch

* Update primitives/src/parachain.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Update runtime/common/src/parachains.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Update runtime/common/src/parachains.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Minor fixes

* Fix wasm build

Co-authored-by: Gav Wood <gavin@parity.io>
Co-authored-by: André Silva <andre.beat@gmail.com>
Co-authored-by: Cecile Tonglet <cecile.tonglet@cecton.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* network bridge skeleton

* move some primitives around and add debug impls

* protocol registration glue & abstract network interface

* add send_msgs to subsystemctx

* select logic

* transform different events into actions and handle

* implement remaining network bridge state machine

* start test skeleton

* make network methods asynchronous

* extract subsystem out to subsystem crate

* port over overseer to subsystem context trait

* fix minimal example

* fix overseer doc test

* update network-bridge crate

* write a subsystem test-helpers crate

* write a network test helper for network-bridge

* set up (broken) view test

* Revamp network to be more async-friendly and not require Sync

* fix spacing

* fix test compilation

* insert side-channel for actions

* Add some more message types to AllMessages

* introduce a test harness

* add some tests

* ensure service compiles and passes tests

* fix typo

* fix service-new compilation

* Subsystem test helpers send messages synchronously

* remove smelly action inspector

* remove superfluous let binding

* fix warnings

* Update node/network/bridge/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* fix compilation

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Companion for #6503

* Remove old filtering

* Bump tx version

* Bump version

* Bump

* Update staking reward curve for pre-parachain situation.

* Bump runtime.

* Bump versions

* introduce polkadot-node-primitives

* guide: change statement distribution message types

* guide: remove variant from `CandidateSelectionMessage`

* add a few more message types

* add TODOs

* Almost all messages

* NewBackedCandidate notification

* Formatting

* Use AttestedCandidate as BackedCandidate

* Update node/primitives/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Fix the tests

* Bring in types from #1242

* Adds network bridge messages

* More message types from doc

* use fn pointer type

* Fixes from the review

* Add missing Runtime subsystem message

* rename to CandidateValidationMessage and fix tests

Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* Rename old labels.

* Bump runtimes

* Bump versions

* Bump lock

* Bump versions, tweak deposit costs.

* Version

* Lock

* Make test work ok when numbers are not round.

* Bump Substrate

* Lock

* New service initial commit

* More separation of the new and old services

* Fix review comments

* Adds polkadot.json

* Fix browser build

* Remove unused import

* Update node/service/src/lib.rs

Co-authored-by: Fedor Sakharov <fedor.sakharov@gmail.com>

* Remove duplicate json files

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Bump Substrate again.

* update kusama runtmie for ensure origin

* update polkadot runtime for ensure origin

* fix imports

* root only available for runtime benchmarks

* Fix lock file

* Bump Substrate

* Update lock

* Remove questionable feature-gating.

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Bump versions.

* Update lock

* Fix for new Substrate

* Fix

* Remove Utility constraint in NonTransfer

* Bump

* Fixes

* Allow limited utilities in proxy filters.

* Fix

* Add SudoBalances proxy restrictions

* establish new `node` folder for overseer, messages, and subsystems

* extract message types from overseer crate

* remove doc links

* Introduce generalised proxies to polkadot

* Introduce proxy to westend

* Add proxy to Kusama.

* Fix

* file structure and initializer skeleton

* ensure session changes happen before initialization

* add a couple tests for initializer flow

* integrate with session handling

* configuration update logic

* configuration methods

* move test mock to its own module

* integrate configuration into initializer

* add note about initialization order

* integrate configuration module into mock

* add some tests for config module

* paras module storage

* implement paras session change operation

* amend past code pruning to fully cover acceptance period

* update guide again

* do pruning of historical validation code

* add weight to initialization

* integrate into mock & leave notes for next session

* clean up un-ended sentence

* alter test to account for double index in past code meta

* port over code-at logic test

* clarify checking for conflicting code upgrades

* add genesis for paras, include in mock, ensure incoming paras are processed

* note on return value of `validation_code_at`

* implement paras routines from implementor's guide

* bring over some existing tests and begin porting

* port over code upgrade tests

* test parachain registration

* test code_at with intermediate block

* fix warnings

* clean up docs and extract to separate struct

* adjust implementor's guide to include replacementtimes

* kill stray println

* rename expected_at to applied_after

* rewrite ParaPastCodeMeta to avoid reversal

* clarify and test interface of validation_code_at

* make FutureCode optional

* rename do_old_code_pruning

* add comment on Option<()> to answer FAQ

* address some more grumbles

* Initial commit

* Licenses, spaces, docs

* Add a spawner

* Watch spawned subsystems with a FuturesUnordered

* Move the types around a bit

* Suggested fixes by Max

* Add a handler to talk to the Overseer

* FromOverseer and ToOverseer msgs and stopping

* Docs and return errors

* Dont broadcast, have add a from field to messages

* Allow communication between subsystems and outside world

* A message with a oneshot to send result example

* Remove leftover can_recv_msg

* Remove from field from messages

* Dont be generic over stuff

* Gather messages with StreamUnordered

* Fix comments and formatting

* More docs fixes and an example

* Apply suggestions from code review

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Fixes from review

Move function from impl block.
Do not panic but resolve with errors if spawner fails or subsystem
resolves.

* Dropping a handler results in a flaky test

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Identity

* Bump spec

* Update runtime/polkadot/src/lib.rs

Co-authored-by: kaichao <kaichaosuna@gmail.com>

* Fix runtime

* Bump runtimes

Co-authored-by: kaichao <kaichaosuna@gmail.com>

* Bump

* Bump

* Bump

* Test CC1 spec

* Adaptive default chainspec

* Strip -pre

* Update to next CC1 iteration

* Raw chainspec

* Update claim statements

* Update URLs

* Minor tweak to make enum agree with URL

* final html multihashes

* New hashes

* Version

* updated SAFT statement hash

* Update runtimes; this relies on substrate #6131

* Bump

* Share transaction filterer and fix Kusama

* Warning

* Gah!

* Tidy

* Westend fixes

* Westend fix

* Tweak constants

* Implement TCF stuff

* Fix

* Warning

* 15 minute lookahead

* 15 minute lookahead in Polkadot

* update max transactions

* Enable utility, disable vested_transfer

* Update runtime/common/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Filter calls for validate unsigned also

* Deduplicate

* Fix

* Introduce Polkadot (mainnet) chainspec

* Fix naming.

* Enable indices and fix comment.

* Fix compilation

* Enable indices and fix comment.

* polkadot: babe: enable secondary VRF slots

* Test JSON

* Allow set_heads

* Fix

* Raw chain spec added

Co-authored-by: keorn <github@i.keorn.org>
Co-authored-by: NikVolf <nikvolf@gmail.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomasz@parity.io>
Co-authored-by: André Silva <andre.beat@gmail.com>

* Introduce mandatory statement signing into claims

* Introduce SignedExtension

* Tests passing

* Bump runtime version

* Bump version, fix test

* Test for validate

* Another couple of tests

* Enable PrevalidateAttests on Polkadot

* Enable PrevalidateAttests on Polkadot

* Fix build

* Fixes

* More fixes

* Fix bench tests

* Fix & test Preclaim clobbering.

* Fix for errant claim logic

* Add test

* Update tests, always use Vec as input

* mint_claim can add signature, some_benchmarks

* Add claim with statement test

* finish benchmarks

* put the correct number of claims with benchmarks

* fix compiler warning

* Update weights

* Weight comments for validation

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Bump Westend runtime version

* Bump Substrate

* Prep for release of 0.7.32

* Update lock

* add storage_append

* Bump versions

Co-authored-by: Gav Wood <gavin@parity.io>

* Release 0.7.30

* Update Substrate & libp2p

* Release 0.7.29

* Update `Cargo.lock`

* Initial draft

* More work

* Build

* Docs

* Insert westend keys

* Add badBlock to fork from old chain

* Updated spec to reset westend

* Use raw spec

* Fix spec format and use westend2 for both id's

* Correct public key for bootnode 3

* Build

* Extra space

* Fix build

* Lock

* Update lock

* Fixes

* Fix for he startup text

* Bump

Co-authored-by: Gav Wood <gavin@parity.io>

* Use tempdir for tests

* Rename tmp to tempdir

* Update Cargo.lock

* Update expect error message in run_command_and_kill

* Call with .path() rather than creating an string slice

* Call tempdir with arg instead of args

* Update tests/purge_chain_works.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Initial commit

Forked at: 77de8b91
Parent branch: origin/master

* Switch substrate to branch cecton-the-revenge-of-the-cli

* Adapting code

* Update Cargo.lock

* Adapting code

* Adapt more code

* Implement force_kusama parameter

* Revert dependency update

* Adapt code to use ref to SubstrateCli object

* Updated to latest version

* Updated with latest changes

* Bump spec vesion

* Fixed tests

* WIP

Forked at: 77de8b91
Parent branch: origin/master

* More fixes

* Cargo.lock

* Updated code

* Fixed and adapt

* Fixed dependency issue with wasm

* Adapted code

* Revert branch change

* Cargo.lock

* Cargo.lock

* Adapt code

* Clean-up

* More clean-up

* Cargo.lock

* upgrade primitives to allow changing validation function

* set up storage schema for old parachains code

* fix compilation errors

* fix test compilation

* add some tests for past code meta

* most of the runtime logic for code upgrades

* implement old-code pruning

* add a couple tests

* clean up remaining TODOs

* add a whole bunch of tests for runtime functionality

* remove unused function

* fix runtime compilation

* extract some primitives to parachain crate

* add validation-code upgrades to validation params and result

* extend validation params with code upgrade fields

* provide maximums to validation params

* port test-parachains

* add a code-upgrader test-parachain and tests

* fix collator tests

* move test-parachains to own folder to work around compilation errors

* fix test compilation

* update the Cargo.lock

* fix parachains tests

* remove dbg! invocation

* use new pool in code-upgrader

* bump lockfile

* link TODO to issue