* Guard against XCM recursive bombs by setting a recursion limit

* Add test and set a lower recursion limit

* Use u32 instead of usize for recursion limit

* Make spellcheck happy

* Cargo fmt

* Limit XCM decoding depth in UMP message processing

* Modify test to check for recursion in BuyExecution

* Update xcm/xcm-simulator/example/src/lib.rs

Co-authored-by: Kian Paimani <[email protected]>

* Make cargo fmt happy

* WIP for testing recursion limit in WASM

* Revert "WIP for testing recursion limit in WASM"

This reverts commit 39181b46d1adf79358f5ae8aafcf480e0c0c22e6.

* Remove XCM recursion limit test

* Add recursion test for XCM message execution

* Set a more sensible recursion limit

* Cargo fmt

* Implement successful_origin for benchmarks

* Set recursion limit to 8 and create integration tests directory for xcm-executor

* Cargo fmt

* Add runtime-benchmarks feature to test-runtime

* Give up creating ConvertOriginToLocal and use EnsureXcm

* Re-add ConvertOriginToLocal

* Fix compilation

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

Co-authored-by: Gavin Wood <[email protected]>

* Add decoding limit to all versioned XCM decode calls

* Fix recursion limit test

* Set a lower recursion count for recursion test

* move integration tests to their own folder, fix recursion check in execute_effects

* Remove xcm-executor integration tests directory

* fix up

* Update Cargo.lock

* Update runtime/parachains/src/ump.rs

* use proper decode limit

* fix decode depth limit

* here too

* Update traits.rs

* fix compile

* fix test

* Revert `decode_all_with_depth_limit` changes in parachain.rs

* Remove unused imports in parachain.rs

Co-authored-by: Keith Yeung <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Gavin Wood <[email protected]>

* MultiAsset TWO

* Draft next MultiAsset API.

* XCM core builds

* XCM Executor builds

* XCM Builder builds

* API changes making their way throughout

* Some TODOs

* Further build fixes

* Basic compile builds

* First test fixed

* All executor tests fixed

* Typo

* Optimize subsume_assets and add test

* Optimize checked_sub

* XCM Builder first test fixed

* Fix builder tests

* Fix doc test

* fix some doc tests

* spelling

* named fields for AllOf

* Update xcm/src/v0/multiasset.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/src/v0/multiasset.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/src/v0/multiasset.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/src/v0/multiasset.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Reformat

* Move to XCM version 1

* Spelling

* warnings

* Replace some more v0->v1s

* warnings

* format

* Add max_assets param

* building

* test fixes

* tests

* another test

* final test

* tests

* Rename Null -> Here

* Introduce

* More ergonomics

* More ergonomics

* test fix

* test fixes

* docs

* BuyExecution includes

* Fix XCM extrinsics

* fmt

* Make Vec<MultiAsset>/MultiAssets conversions safe

* More MultiAssets conversion safety

* spelling

* fix doc test

* Apply suggestions from code review

Co-authored-by: Amar Singh <[email protected]>

* Apply suggestions from code review

Co-authored-by: Amar Singh <[email protected]>

* fmt

* Add v0, remove VersionedMultiAsset

* Remove VersionedMultiLocation

* Update xcm/src/v1/order.rs

Co-authored-by: Amar Singh <[email protected]>

* Update xcm/src/v1/mod.rs

Co-authored-by: Amar Singh <[email protected]>

* XCM v0 backwards compatibility

* Full compatibility

* fmt

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

* Update xcm/src/v0/order.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Tweaks to versioning system

* Fixes

* fmt

* Update xcm/xcm-executor/src/assets.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update xcm/xcm-executor/src/assets.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Grumbles

* Update xcm/src/v1/multiasset.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* fmt

* Update xcm/src/v1/multiasset.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update xcm/src/v1/multiasset.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Fixes

* Formatting

Co-authored-by: Alexander Popiak <[email protected]>
Co-authored-by: Amar Singh <[email protected]>
Co-authored-by: Shawn Tabrizi <[email protected]>

* cargo +nightly fmt

* add cargo-fmt check to ci

* update ci

* fmt

* fmt

* skip macro

* ignore bridges

* add missing bridges logging target

* trace send_xcm

* trace execute_xcm

* trace calls in xcm-executor

* trace tuple implementations of xcm traits

* update cargo.lock

* remove bridge log target

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

* log argument formatting

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

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

* Stuff to help inspect the DMP activity

* Fix teleport accounting

* Fixes

* Fixes

* Fixes

* Fixes

* WIP

* add tests and docs for DoubleEncoded

* reformat parent_count

* add test for match_and_split

* fix append_with docs and add tests

* move Parachain enum variant to tuple

* Fix stuff

* add to append test

* simplify match

* formatting

* format and extend doc comments (including examples)

* fix typo

* add some doc comments

* add test for location inverter

* Add more tests/docs

* Fix build

* matches fungibles

* currency adapter.

* add more tests for location inverter

* extract max length magic number into constant

* adapters.

* Apply suggestions from code review

* Final touches.

* Repot and fixes

* Remove last todo

* Apply suggestions from code review

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/barriers.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/barriers.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/currency_adapter.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/filter_asset_location.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/matches_fungible.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-executor/src/traits/conversion.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-executor/src/traits/conversion.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-executor/src/traits/transact_asset.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-executor/src/traits/should_execute.rs

Co-authored-by: Alexander Popiak <[email protected]>

Co-authored-by: kianenigma <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: Shawn Tabrizi <[email protected]>

* Check out/in assets when teleporting to maintain total issuance

* Fixes

* Fixes

* Fixes

* Fixes

* Update xcm/xcm-executor/src/traits/transact_asset.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Docs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Dispatchable for teleporting assets

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

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

Co-authored-by: Shawn Tabrizi <[email protected]>

* Update xcm/src/v0/traits.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Add XCM Origin and converter

* IsMajority filter can be location-prefixed

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

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/src/v0/multi_location.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Introduce UsingComponents to allow reuse of fee payment in XCM

* Use Drop rather than finalize

* Add errors for weight.

* Apply suggestions from code review

Co-authored-by: Alexander Popiak <[email protected]>

* Fixes

* Update xcm/xcm-builder/src/weight.rs

Co-authored-by: Kian Paimani <[email protected]>

* Various XCM fixes and improvements

* Fixes

* Update xcm/xcm-builder/src/weight.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/weight.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/xcm-builder/src/weight.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Fixes

Co-authored-by: Alexander Popiak <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

* 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 <[email protected]>

* Docs

* Fixes

* Update lib.rs

* Fixes

Co-authored-by: Shawn Tabrizi <[email protected]>

* Introduce plurality XCM locations

* Add RelayedFrom

* 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 <[email protected]>

* Fixes

* Docs

* Update runtime/parachains/src/ump.rs

Co-authored-by: Shawn Tabrizi <[email protected]>

* Docs

* Fixes

* Fixes

* Fixes

* Docs

* Fixes

* Fixes

* Introduce transfer_asset specialisation.

* Fixes

* Fixes

Co-authored-by: Shawn Tabrizi <[email protected]>

* Lol

* Add the features

* Remove some more runtime logger init calls

* Make companion check work

* Revert "Make companion check work"

This reverts commit a255c798076466c0fa20a4db713fc712772c2b4d.

* Update Substrate

* update tiny-keccak to 0.2

* update deps except bitvec and shared_memory

* fix some warning after futures upgrade

* remove useless package rename caused by bug in cargo-upgrade

* revert parity-util-mem *

* remove unused import

* cargo update

* remove all renames on parity-scale-codec

* remove the leftovers

* remove unused dep

Co-authored-by: Gavin Wood <[email protected]>