* gossip: do not issue a connection request if we are not a validator

* guide updates

* use all relevant authorities when issuing a request

* use AuthorityDiscoveryApi instead

* update comments to the status quo

* Switch branch.

* Implement basic MMR leaf.

* Revert "Switch branch."

This reverts commit 7f4d41c67f27ca560c53fc63fd3bd06ac182403c.

* Bump substrate.

* Integrate BEEFY.

Bump all.

Fix missing imports.

* Use beefy pallet to get authorities.

* Bump BEEFY repo.

* Use next authority set instead of the current one.

* Start BEEFY service.

* Fix BEEFY start up.

* Cache BEEFY authority set.

* Add BEEFY ValidatorSetId to MMR

* Fix code.

* Apply suggestions from code review

Co-authored-by: André Silva <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>

* Review grumbles.

* Update beefy repo.

* Work-around missing protocol.

* Revert "Work-around missing protocol."

This reverts commit 0a6257a8bccc1c67e966898cdedc408c6469ffd6.

* Add beefy peers set config.

* Expose storage of BEEFY.

* Uncompress BEEFY keys for merkle tree.

* Update ordering.

* Switch to branch.

* Bump deps.

* Switch to custom beefy.

* Add MMR RuntimeApi and custom rpc.

* Add set length details.

* Fix compilation.

* Expose MmrLeaf storage.

* Expose MmrLeaf storage.

* Don't use session handler, and rather compute & cache beefy details on call.

* Don't use session handler, and rather compute & cache beefy details on call.

* Fixes.

* Update Cargo.lock.

* Switch back to master.

* Update lockfile.

* Fix xcm print issue.

* Cargo.lock.

* Use master branch.

* Remove extra dep.

* Fix tests.

* Update Cargo.lock

* Add BEEFY & MMR to westend.

* Implement session keys migration.

* Update testnet script.

* start BEEFY for all node types

* Update Cargo.lock

* fix Cargo.toml

* resolve another merge conflict

* add Westend BEEFY keys

* Apply suggestions from code review

Co-authored-by: Hernando Castano <[email protected]>

* Update BEEFY.

* Add Rococo BEEFY keys

* resolve merge issue

* fix pallet indices

* fix Westend OldSessionKey

* remove unused imports in Westend runtime

* Fix compilation for Westend.

* address review

* start BEEFY gadget conditionally

* address review again

* fix typo

* remove duplicate

* remove another duplicate

* well

* add missing stuff

* cleanup Cargo.toml files

- revert unnecessary changes
- add missing /std dependencies
- remove unused dependencies

* runtime: remove unused structs from rococo runtime

* node: cleanup service

Co-authored-by: André Silva <[email protected]>
Co-authored-by: Hernando Castano <[email protected]>
Co-authored-by: adoerr <[email protected]>
Co-authored-by: André Silva <[email protected]>

* proper executor/block type for benchmarks and try-runtime

* Fix

* update benches as well to latest work

* Remvoe dbg

* Indentation fix.

* Prepare request-response for PoV fetching.

* Drop old PoV distribution.

* WIP: Fetch PoV directly from backing.

* Backing compiles.

* Runtime access and connection management for PoV distribution.

* Get rid of seemingly dead code.

* Implement PoV fetching.

Backing does not yet use it.

* Don't send `ConnectToValidators` for empty list.

* Even better - no need to check over and over again.

* PoV fetching implemented.

+ Typechecks
+ Should work

Missing:

- Guide
- Tests
- Do fallback fetching in case fetching from seconding validator fails.

* Check PoV hash upon reception.

* Implement retry of PoV fetching in backing.

* Avoid pointless validation spawning.

* Add jaeger span to pov requesting.

* Add back tracing.

* Review remarks.

* Whitespace.

* Whitespace again.

* Cleanup + fix tests.

* Log to log target in overseer.

* Fix more tests.

* Don't fail if group cannot be found.

* Simple test for PoV fetcher.

* Handle missing group membership better.

* Add test for retry functionality.

* Fix flaky test.

* Spaces again.

* Guide updates.

* Spaces.

* collator: authenticate collator protocol messages

* fix tests compilation

* node: verify collator protocol signatures in tests

* collator: fix tests

* implementers-guide: update CollatorProtocol messages

* collator: add test for verification of collator protocol signatures

* node: remove fixmes

* node: remove signature from advertisecollation message

* node: add magic constant to Declare message signature payload

* malicious reputation cost is fatal

* make ReportBad a malicious cost

* futures control-flow for cleaning up inactive collator peers

* guide: network bridge updates

* add `PeerDisconnected` message

* guide: update

* reverse order

* remember to match

* implement disconnect peer in network bridge

* implement disconnect_inactive_peers

* test

* remove println

* don't hardcore policy

* add fuse outside of loop

* use default eviction policy

* Don't accept incoming connections for collators

on the `Collation` peer set.

* Better docs.

* Companion for Substrate#8386

https://github.com/paritytech/substrate/pull/8386

* "Update Substrate"

Co-authored-by: parity-processbot <>

Currently we will take all leaves and give that to the overseer on
startup, but this is a bad idea when the finality is lagging for
example. There can be many of unfinalized leaves, we don't even need to
look at anymore. To solve this, the pr adds a maximum of 4 leaves we
forward to the overseer and the pr also checks that we only pass uncles
of the best block.

Companion for https://github.com/paritytech/substrate/pull/8143

* Switch branch

* Fix compilation.

* Revert "Switch branch"

This reverts commit a3bd3621772ae98618c46102d03501856b7950ba.

* Update Cargo.lock.

* Add telemetry span back.

* Fix telemetry_span issues.

* Update substrate.

* approval-voting metrics

* metric: approvals produced

* Substrate companion #8280

https://github.com/paritytech/substrate/pull/8280

* "Update Substrate"

Co-authored-by: parity-processbot <>

* Print an error if a collator connects to a node without real-overseer

* Update node/service/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>

This fixes a bug in block import not reporting to the telemetry.

* initial subsystem for issuing connection requests

* finish the initial impl

* integrate with the overseer

* rename to gossip-support

* fix renamings leftover

* remove run_inner

* fix compilation

* random subset of sqrt

* Pass shared_authority_set to request_response_config_for_chain

* "Update Substrate"

Co-authored-by: Ashley Ruglys <[email protected]>
Co-authored-by: parity-processbot <>

* Companion for Substrate #8185

https://github.com/paritytech/substrate/pull/8185

* "Update Substrate"

Co-authored-by: parity-processbot <>

* Companion for Substrate#8155

https://github.com/paritytech/substrate/pull/8155

* :D

* Update the Substrate reference

* Use KeyValueDB in approval-voting

* use KVDB instead of AuxStore

* add rocksdb to cargo toml

* add a Config struct

* create new DB in service

* fix dep for regular node

* make optional

* post merge fix

Co-authored-by: Andronik Ordian <[email protected]>

* guide changes for a fast-path requesting from backing validators

* add backing group to availability recovery message

* add new phase to interaction

* typos

* add full data messages

* handle new network messages

* dispatch full data requests

* cleanup

* check chunk index

* test for invalid recovery

* tests

* Typos.

* fix some grumbles

* be more explicit about error handling and control flow

* fast-path param

* use with_chunks_only in Service

Co-authored-by: Robert Klotzner <[email protected]>

* WIP

* WIP

* WIP

* Revert branch change

* CLEANUP

* "Update Substrate"

* Fix build

* Revert "Fix build"

This reverts commit 2dcc3f2a14d28febb84c2c35d682243bc03523a8.

* cargo update -p sp-io

Co-authored-by: parity-processbot <>

* integrate approval voting into overseer

* expose public API and make keystore arc

* integrate overseer in service

* guide: `ApprovedAncestor` returns block number

* return block number along with hash from ApprovedAncestor

* introduce a voting rule for reporting on approval checking

* integrate the delay voting rule

* Rococo configuration

* fix compilation and add slack

* fix web-wasm build

* tweak parameterization

* migrate voting rules to asycn

* remove hack comment

* Companion for substrate#8079

* More changes

* "Update Substrate"

Co-authored-by: parity-processbot <>

* skeleton

* skeleton aux-schema module

* start approval types

* start aux schema with aux store

* doc

* finish basic types

* start approval types

* doc

* finish basic types

* write out schema types

* add debug and codec impls to approval types

* add debug and codec impls to approval types

also add some key computation

* add debug and codec impls to approval types

* getters for block and candidate entries

* grumbles

* remove unused AssignmentId

* load_decode utility

* implement DB clearing

* function for adding new block entry to aux store

* start `canonicalize` implementation

* more skeleton

* finish implementing canonicalize

* tag TODO

* implement a test AuxStore

* add allow(unused)

* basic loading and deleting test

* block_entry test function

* add a test for `add_block_entry`

* ensure range is exclusive at end

* test clear()

* test that add_block sets children

* add a test for canonicalize

* extract Pre-digest from header

* utilities for extracting RelayVRFStory from the header-chain

* add approval voting message types

* approval distribution message type

* subsystem skeleton

* state struct

* add futures-timer

* prepare service for babe slot duration

* more skeleton

* better integrate AuxStore

* RelayVRF -> RelayVRFStory

* canonicalize

* implement some tick functionality

* guide: tweaks

* check_approval

* more tweaks and helpers

* guide: add core index to candidate event

* primitives: add core index to candidate event

* runtime: add core index to candidate events

* head handling (session window)

* implement `determine_new_blocks`

* add TODO

* change error type on functions

* compute RelayVRFModulo assignments

* compute RelayVRFDelay assignments

* fix delay tranche calc

* assignment checking

* pluralize

* some dummy code for fetching assignments

* guide: add babe epoch runtime API

* implement a current_epoch() runtime API

* compute assignments

* candidate events get backing group

* import blocks and assignments into DB

* push block approval meta

* add message types, no overseer integration yet

* notify approval distribution of new blocks

* refactor import into separate functions

* impl tranches_to_approve

* guide: improve function signatures

* guide: remove Tick from ApprovalEntry

* trigger and broadcast assignment

* most of approval launching

* remove byteorder crate

* load blocks back to finality, except on startup

* check unchecked assignments

* add claimed core to approval voting message

* fix checks

* assign only to backing group

* remove import_checked_assignment from guide

* newline

* import assignments

* abstract out a bit

* check and import approvals

* check full approvals from assignment import too

* comment

* create a Transaction utility

* must_use

* use transaction in `check_full_approvals`

* wire up wakeups

* add Ord to CandidateHash

* wakeup refactoring

* return candidate info from add_block_entry

* schedule wakeups

* background task: do candidate validation

* forward candidate validation requests

* issue approval votes when requested

* clean up a couple TODOs

* fix up session caching

* clean up last unimplemented!() items

* fix remaining warnings

* remove TODO

* implement handle_approved_ancestor

* update Cargo.lock

* fix runtime API tests

* guide: cleanup assignment checking

* use claimed candidate index instead of core

* extract time to a trait

* tests module

* write a mock clock for testing

* allow swapping out the clock

* make abstract over assignment criteria

* add some skeleton tests and simplify params

* fix backing group check

* do backing group check inside check_assignment_cert

* write some empty test functions to implement

* add a test for non-backing

* test that produced checks pass

* some empty test ideas

* runtime/inclusion: remove outdated TODO

* fix compilation

* av-store: fix tests

* dummy cert

* criteria tests

* move `TestStore` to main tests file

* fix unused warning

* test harness beginnings

* resolve slots renaming fallout

* more compilation fixes

* wip: extract pure data into a separate module

* wip: extract pure data into a separate module

* move types completely to v1

* add persisted_entries

* add conversion trait impls

* clean up some warnings

* extract import logic to own module

* schedule wakeups

* experiment with Actions

* uncomment approval-checking

* separate module for approval checking utilities

* port more code to use actions

* get approval pipeline using actions

* all logic is uncommented

* main loop processes actions

* all loop logic uncommented

* separate function for handling actions

* remove last unimplemented item

* clean up warnings

* State gives read-only access to underlying DB

* tests for approval checking

* tests for approval criteria

* skeleton test module for import

* list of import tests to do

* some test glue code

* test reject bad assignment

* test slot too far in future

* test reject assignment with unknown candidate

* remove loads_blocks tests

* determine_new_blocks back to finalized & harness

* more coverage for determining new blocks

* make `imported_block_info` have less reliance on State

* candidate_info tests

* tests for session caching

* remove println

* extricate DB and main TestStores

* rewrite approval checking logic to counteract early delays

* move state out of function

* update approval-checking tests

* tweak wakeups & scheduling logic

* rename check_full_approvals

* test that assignment import updates candidate

* some approval import tests

* some tests for check_and_apply_approval

* add 'full' qualifier to avoid confusion

* extract should-trigger logic to separate function

* some tests for all triggering

* tests for when we trigger assignments

* test wakeups

* add block utilities for testing

* some more tests for approval updates

* approved_ancestor tests

* new action type for launch approval

* process-wakeup tests

* clean up some warnings

* fix in_future test

* approval checking tests

* tighten up too-far-in-future

* special-case genesis when caching sessions

* fix bitfield len

Co-authored-by: Andronik Ordian <[email protected]>

* Wasm caching

* Fix compilation errors

* Rename `cache_path` to `cache_base_path`

* "Update Substrate"

* Fix check-web-wasm build

Co-authored-by: parity-processbot <>

* node: pass local authorship to the transaction pool

* update substrate

* Refactored the build steps for building with cargo

* Cargo build step needs pre requisites not mentioned

* Update README.md

* unused variable can be explicity ignored

Co-authored-by: Bastian Köcher <[email protected]>

* Move NetworkBridgeEvent to subsystem::messages.

It is not protocol related at all, it is in fact only part of the
subsystem communication as it gets wrapped into messages of each
subsystem.

* Request/response infrastructure is taking shape.

WIP: Does not compile.

* Multiplexer variant not supported by Rusts type system.

* request_response::request type checks.

* Cleanup.

* Minor fixes for request_response.

* Implement request sending + move multiplexer.

Request multiplexer is moved to bridge, as there the implementation is
more straight forward as we can specialize on `AllMessages` for the
multiplexing target.

Sending of requests is mostly complete, apart from a few `From`
instances. Receiving is also almost done, initializtion needs to be
fixed and the multiplexer needs to be invoked.

* Remove obsolete multiplexer.

* Initialize bridge with multiplexer.

* Finish generic request sending/receiving.

Subsystems are now able to receive and send requests and responses via
the overseer.

* Doc update.

* Fixes.

* Link issue for not yet implemented code.

* Fixes suggested by @ordian

 - thanks!

- start encoding at 0
- don't crash on zero protocols
- don't panic on not yet implemented request handling

* Update node/network/protocol/src/request_response/v1.rs

Use index 0 instead of 1.

Co-authored-by: Andronik Ordian <[email protected]>

* Update node/network/protocol/src/request_response.rs

Co-authored-by: Andronik Ordian <[email protected]>

* Fix existing tests.

* Better avoidance of division by zoro errors.

* Doc fixes.

* send_request -> start_request.

* Fix missing renamings.

* Update substrate.

* Pass TryConnect instead of true.

* Actually import `IfDisconnected`.

* Fix wrong import.

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

typo

Co-authored-by: Pierre Krieger <[email protected]>

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

Remove redundant import.

Co-authored-by: Pierre Krieger <[email protected]>

* Stop doing tracing from within `From` instance.

Thanks for the catch @tomaka

!

* Get rid of redundant import.

* Formatting cleanup.

* Fix tests.

* Add link to issue.

* Clarify comments some more.

* Fix tests.

* Formatting fix.

* tabs

* Fix link

Co-authored-by: Bernhard Schuster <[email protected]>

* Use map_err.

Co-authored-by: Bernhard Schuster <[email protected]>

* Improvements inspired by suggestions by @drahnr.

- Channel size is now determined by function.
- Explicitely scope NetworkService::start_request.

Co-authored-by: Andronik Ordian <[email protected]>
Co-authored-by: Pierre Krieger <[email protected]>
Co-authored-by: Bernhard Schuster <[email protected]>

* Adapt code to changes in substrate

* WIP

* "Update Substrate"

Co-authored-by: parity-processbot <>

* Companion for #7953: remove runtime checks in prove_finality

* "Update Substrate"

Co-authored-by: parity-processbot <>
Co-authored-by: André Silva <[email protected]>

* initial impl approval distribution

* initial tests and fixes

* batching seems difficult: different peers have different needs

* bridge: fix test after merge

* some guide updates

* only send assignments to peers who know about the block

* fix a test, add approvals test

* simplify

* do not send assignment to peers for finalized blocks

* guide: protocol input and output

* one more test

* more comments, logs, initial metrics

* fix a typo

* one more thing: early return when reimporting a thing locally

* service: update for substrate PR #7339

* "Update Substrate"

Co-authored-by: parity-processbot <>

* Add support for Grandpa warp sync

* Don't pull the warp sync crate if not full-node