* Companion for Trim compact solution for length during preparation

https://github.com/paritytech/substrate/pull/8317



* eliminate potential for overflow in OffchainSolutionLengthLimit

* Apply suggestions from code review

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* update substrate: cargo update -p sp-io

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* impl is_inherent for pallets

* fix

* fix master merge: inherent is

* update Substrate

Co-authored-by: parity-processbot <>

* More test coverage.

* Preserve peer order.

* Better test coverage.

* Even more test coverage.

* Add doc comment to `IndexMap`.

* Fix flaky test.

* Review remarks.

* Review remarks.

* Remove BabeEpochConfigMigrations

* Remove remaining migrations

* Remove unused migration definitions

* Dedupe some code and companion for #8589

* Bump Substrate

Also allows unpaid messages from them.

* initial patch

* fix tests

* fix benchmarks

* expose `SlotRange` consts

* Update Cargo.lock

* fix tests

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

* distribution: handle sqrt peer view updates

* someone please put rustc into my brain

* guide updates

* update rococo and remove cursed BEEFY migration

* remove migration

* tweak VERSION

Co-authored-by: Robert Klotzner <eskimor@users.noreply.github.com>

* Wip

* Increase proposer timeout.

* WIP.

* Better timeout values now that we are going to be connected to all nodes. (#2778)

* Better timeout values.

* Fix typo.

* Fix validator bandwidth.

* Fix compilation.

* Better and more consistent sizes.

Most importantly code size is now 5 Meg, which is the limit we currently
want to support in statement distribution.

* Introduce statement fetching request.

* WIP

* Statement cache retrieval logic.

* Review remarks by @rphmeier

* Fixes.

* Better requester logic.

* WIP: Handle requester messages.

* Missing dep.

* Fix request launching logic.

* Finish fetching logic.

* Sending logic.

* Redo code size calculations.

Now that max code size is compressed size.

* Update Cargo.lock (new dep)

* Get request receiver to statement distribution.

* Expose new functionality for responding to requests.

* Cleanup.

* Responder logic.

* Fixes + Cleanup.

* Cargo.lock

* Whitespace.

* Add lost copyright.

* Launch responder task.

* Typo.

* info -> warn

* Typo.

* Fix.

* Fix.

* Update comment.

* Doc fix.

* Better large statement heuristics.

* Fix tests.

* Fix network bridge tests.

* Add test for size estimate.

* Very simple tests that checks we get LargeStatement.

* Basic check, that fetching of large candidates is performed.

* More tests.

* Basic metrics for responder.

* More metrics.

* Use Encode::encoded_size().

* Some useful spans.

* Get rid of redundant metrics.

* Don't add peer on duplicate.

* Properly check hash

instead of relying on signatures alone.

* Preserve ordering + better flood protection.

* Get rid of redundant clone.

* Don't shutdown responder on failed query.

And add test for this.

* Smaller fixes.

* Quotes.

* Better queue size calculation.

* A bit saner response sizes.

* Fixes.

* Introduce a collective into Rococo runtime

* Intregrate Rococo Collective into XCM

* Fixes

* Update runtime/rococo/src/lib.rs

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

* initial stuff

* adjust deposit

* remove unused

* weight stuff

* Update integration_tests.rs

* Update paras_registrar.rs

* Update paras_registrar.rs

* add test

* Update paras_registrar.rs

Co-authored-by: parity-processbot <>

* Introduce plurality XCM locations

* Add RelayedFrom

* DMP dispatch weight handling.

* Add pallet for XCM sending, add routing logic.

* Update error types & doc

* Fix warnings.

* Fixes

* Fixes

* Fixes

* Bump Substrate

* Fixes

* Docs

* Docs

* Docs

* Fixes

* Fixes

* Fixes

* Update xcm/pallet-xcm/src/lib.rs

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

* Docs

* Fixes

* Update lib.rs

* Fixes

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

* Reduce the value of DOLLARS by 50x

* Update lib.rs

* lock substrate version for testing

* `ModuleId` to `PalletId`

* release substrate version

* Update Cargo.lock

Co-authored-by: Xavier Lau <c.estlavie@icloud.com>

shows what I get for being hasty last time. i added a test this time, which would have caught this issue last time.

with the MaxValidators parameter set, this meant that only validators participating in parachain consensus would be able to author relay-chain blocks containing backed candidates

* silence some parachain warnings

* that was actually a bug that Rob is fixing

* Implement PVF validation host

* WIP: Diener

* Increase the alloted compilation time

* Add more comments

* Minor clean up

* Apply suggestions from code review

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

* Fix pruning artifact removal

* Fix formatting and newlines

* Fix the thread pool

* Update node/core/pvf/src/executor_intf.rs

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

* Remove redundant test declaration

* Don't convert the path into an intermediate string

* Try to workaround the test failure

* Use the puppet_worker trick again

* Fix a blip

* Move `ensure_wasmtime_version` under the tests mod

* Add a macro for puppet_workers

* fix build for not real-overseer

* Rename the puppet worker for adder collator

* play it safe with the name of adder puppet worker

* Typo: triggered

* Add more comments

* Do not kill exec worker on every error

* Plumb Duration for timeouts

* typo: critical

* Add proofs

* Clean unused imports

* Revert "WIP: Diener"

This reverts commit ff2d3ff2

.

* Sync version of wasmtime

* Update cargo.lock

* Update Substrate

* Merge fixes still

* Update wasmtime version in test

* bastifmt

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

* Squash spaces

* Trailing new line for testing.rs

* Remove controversial code

* comment about biasing

* Fix suggestion

* Add comments

* make it more clear why unwrap_err

* tmpfile retry

* proper proofs for claim_idle

* Remove mutex from ValidationHost

* Add some more logging

* Extract exec timeout into a constant

* Add some clarifying logging

* Use blake2_256

* Clean up the merge

Specifically the leftovers after removing real-overseer

* Update parachain/test-parachains/adder/collator/Cargo.toml

Co-authored-by: Andronik Ordian <write@reusable.software>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Andronik Ordian <write@reusable.software>

* use compressed blob in candidate-validation

* add some tests for compressed code blobs

* remove CompressedPoV and apply compression in collation-generation

* decompress BlockData before executing

* don't produce oversized collations

* add test for PoV decompression failure

* fix tests and clean up

* fix test

* address review and fix CI

* take this )

Co-authored-by: Andronik Ordian <write@reusable.software>

Co-authored-by: Andronik Ordian <write@reusable.software>

* Introduce plurality XCM locations

* Add RelayedFrom

* remove real-overseer

* overseer: only activate leaves which support parachains

* integrate HeadSupportsParachains into service

* remove unneeded line

* Remove unused relaying XCM

* Aggregate HRMP (XCMP/HMP) messages. Payloads for spambot.

* Revert lock

* Fix

* Broken example

* Introduce fee payment mechanics into XCM.

* Weight limitations on XCM execution

* Mock environment for tests and the first test

* Tests for XCM and a few refactors.

* Remove code that's not ready

* Fix for an XCM and an additional test

* Query response system

* XCMP message dispatch system reimagining

- Moved most of the logic into xcm-handler pallet
- Altered the outgoing XCMP API from push to pull
- Changed underlying outgoing queue data structures to avoid multi-page read/writes
- Introduced queuing for incoming messages
- Introduced signal messages as a flow-control sub-stream
- Introduced flow-control with basic threshold back-pressure
- Introduced overall weight limitation on messages executed
- Additonal alterations to XCM APIs for the new system

* Some build fixes

* Remove the Encode bounds sprayed around

* More faff

* Fix bounds amek use latest scale codec.

* remove println

* fixes

* Fix XcmExecutor Tests

* Fix XCM bounds using derivative crate

* Refactor names of XcmGeneric &c into Xcm

* Repot the xcm-executor into xcm-builder

* Docs

* Docs

* Fixes

* Update xcm/src/lib.rs

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

* Fixes

* Docs

* Update runtime/parachains/src/ump.rs

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

* Docs

* Fixes

* Fixes

* Fixes

* Docs

* Fixes

* Fixes

* Introduce transfer_asset specialisation.

* Fixes

* Fixes

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

* Update hrmp.rs

* add root functions

* Relax Origin Checks in Registrar

* fix tests

* Update runtime/common/src/paras_registrar.rs

* introduce para locks

* apply a lock after upgrade

* add test

* add lock when creating crowdloan