diff --git a/Cargo.lock b/Cargo.lock index 196f580e0d50..9ae1bb905b29 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -9699,11 +9699,13 @@ dependencies = [ "frame-system", "impl-trait-for-tuples", "log", + "pallet-assets", "pallet-balances", "pallet-contracts-fixtures", "pallet-contracts-primitives", "pallet-contracts-proc-macro", "pallet-insecure-randomness-collective-flip", + "pallet-message-queue", "pallet-proxy", "pallet-timestamp", "pallet-utility", @@ -9720,6 +9722,9 @@ dependencies = [ "sp-keystore", "sp-runtime", "sp-std 8.0.0", + "sp-tracing 10.0.0", + "staging-xcm", + "staging-xcm-builder", "wasm-instrument 0.4.0", "wasmi", "wat", @@ -9734,6 +9739,44 @@ dependencies = [ "wat", ] +[[package]] +name = "pallet-contracts-mock-network" +version = "1.0.0" +dependencies = [ + "assert_matches", + "frame-support", + "frame-system", + "pallet-assets", + "pallet-balances", + "pallet-contracts", + "pallet-contracts-fixtures", + "pallet-contracts-primitives", + "pallet-contracts-proc-macro", + "pallet-insecure-randomness-collective-flip", + "pallet-message-queue", + "pallet-proxy", + "pallet-timestamp", + "pallet-utility", + "pallet-xcm", + "parity-scale-codec", + "polkadot-parachain-primitives", + "polkadot-primitives", + "polkadot-runtime-parachains", + "pretty_assertions", + "scale-info", + "sp-api", + "sp-core", + "sp-io", + "sp-keystore", + "sp-runtime", + "sp-std 8.0.0", + "sp-tracing 10.0.0", + "staging-xcm", + "staging-xcm-builder", + "staging-xcm-executor", + "xcm-simulator", +] + [[package]] name = "pallet-contracts-primitives" version = "24.0.0" diff --git a/Cargo.toml b/Cargo.toml index 15a7d5c35bf7..f9779681caeb 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -293,6 +293,7 @@ members = [ "substrate/frame/contracts/fixtures", "substrate/frame/contracts/primitives", "substrate/frame/contracts/proc-macro", + "substrate/frame/contracts/mock-network", "substrate/frame/conviction-voting", "substrate/frame/core-fellowship", "substrate/frame/democracy", diff --git a/cumulus/parachains/runtimes/contracts/contracts-rococo/src/contracts.rs b/cumulus/parachains/runtimes/contracts/contracts-rococo/src/contracts.rs index b86f797ee039..6c100deaa9e4 100644 --- a/cumulus/parachains/runtimes/contracts/contracts-rococo/src/contracts.rs +++ b/cumulus/parachains/runtimes/contracts/contracts-rococo/src/contracts.rs @@ -72,4 +72,5 @@ impl Config for Runtime { type RuntimeHoldReason = RuntimeHoldReason; type Debug = (); type Environment = (); + type Xcm = pallet_xcm::Pallet; } diff --git a/polkadot/xcm/xcm-builder/src/controller.rs b/polkadot/xcm/xcm-builder/src/controller.rs index 0ee638b73e1c..931d812eaaf1 100644 --- a/polkadot/xcm/xcm-builder/src/controller.rs +++ b/polkadot/xcm/xcm-builder/src/controller.rs @@ -21,7 +21,7 @@ use frame_support::pallet_prelude::DispatchError; use sp_std::boxed::Box; use xcm::prelude::*; -use xcm_executor::traits::QueryHandler; +pub use xcm_executor::traits::QueryHandler; /// Umbrella trait for all Controller traits. pub trait Controller: diff --git a/polkadot/xcm/xcm-builder/src/lib.rs b/polkadot/xcm/xcm-builder/src/lib.rs index 35f95b85c89c..455f17a5348c 100644 --- a/polkadot/xcm/xcm-builder/src/lib.rs +++ b/polkadot/xcm/xcm-builder/src/lib.rs @@ -119,5 +119,5 @@ pub use pay::{FixedLocation, LocatableAssetId, PayAccountId32OnChainOverXcm, Pay mod controller; pub use controller::{ Controller, ExecuteController, ExecuteControllerWeightInfo, QueryController, - QueryControllerWeightInfo, SendController, SendControllerWeightInfo, + QueryControllerWeightInfo, QueryHandler, SendController, SendControllerWeightInfo, }; diff --git a/substrate/bin/node/runtime/src/lib.rs b/substrate/bin/node/runtime/src/lib.rs index e9adc48ff9cc..90946b713116 100644 --- a/substrate/bin/node/runtime/src/lib.rs +++ b/substrate/bin/node/runtime/src/lib.rs @@ -1353,6 +1353,7 @@ impl pallet_contracts::Config for Runtime { type CodeHashLockupDepositPercent = CodeHashLockupDepositPercent; type Debug = (); type Environment = (); + type Xcm = (); } impl pallet_sudo::Config for Runtime { diff --git a/substrate/frame/contracts/Cargo.toml b/substrate/frame/contracts/Cargo.toml index 0eb50c2b0bae..239b0865e0f0 100644 --- a/substrate/frame/contracts/Cargo.toml +++ b/substrate/frame/contracts/Cargo.toml @@ -48,6 +48,9 @@ sp-io = { path = "../../primitives/io", default-features = false} sp-runtime = { path = "../../primitives/runtime", default-features = false} sp-std = { path = "../../primitives/std", default-features = false} +xcm = { package = "staging-xcm", path = "../../../polkadot/xcm", default-features = false} +xcm-builder = { package = "staging-xcm-builder", path = "../../../polkadot/xcm/xcm-builder", default-features = false} + [dev-dependencies] array-bytes = "6.1" assert_matches = "1" @@ -56,13 +59,19 @@ pretty_assertions = "1" wat = "1" pallet-contracts-fixtures = { path = "./fixtures" } +# Polkadot Dependencies +xcm-builder = {package = "staging-xcm-builder", path = "../../../polkadot/xcm/xcm-builder"} + # Substrate Dependencies pallet-balances = { path = "../balances" } pallet-timestamp = { path = "../timestamp" } +pallet-message-queue = { path = "../message-queue" } pallet-insecure-randomness-collective-flip = { path = "../insecure-randomness-collective-flip" } pallet-utility = { path = "../utility" } +pallet-assets = { path = "../assets" } pallet-proxy = { path = "../proxy" } sp-keystore = { path = "../../primitives/keystore" } +sp-tracing = { path = "../../primitives/tracing" } [features] default = [ "std" ] @@ -92,12 +101,16 @@ std = [ "sp-std/std", "wasm-instrument/std", "wasmi/std", + "xcm-builder/std", + "xcm/std", ] runtime-benchmarks = [ "frame-benchmarking/runtime-benchmarks", "frame-support/runtime-benchmarks", "frame-system/runtime-benchmarks", + "pallet-assets/runtime-benchmarks", "pallet-balances/runtime-benchmarks", + "pallet-message-queue/runtime-benchmarks", "pallet-proxy/runtime-benchmarks", "pallet-timestamp/runtime-benchmarks", "pallet-utility/runtime-benchmarks", @@ -105,12 +118,15 @@ runtime-benchmarks = [ "rand_pcg", "sp-runtime/runtime-benchmarks", "wasm-instrument", + "xcm-builder/runtime-benchmarks", ] try-runtime = [ "frame-support/try-runtime", "frame-system/try-runtime", + "pallet-assets/try-runtime", "pallet-balances/try-runtime", "pallet-insecure-randomness-collective-flip/try-runtime", + "pallet-message-queue/try-runtime", "pallet-proxy/try-runtime", "pallet-timestamp/try-runtime", "pallet-utility/try-runtime", diff --git a/substrate/frame/contracts/fixtures/data/xcm_execute.wat b/substrate/frame/contracts/fixtures/data/xcm_execute.wat new file mode 100644 index 000000000000..b3459996a2e8 --- /dev/null +++ b/substrate/frame/contracts/fixtures/data/xcm_execute.wat @@ -0,0 +1,52 @@ +;; This passes its input to `seal_xcm_execute` and returns the return value to its caller. +(module + (import "seal0" "xcm_execute" (func $xcm_execute (param i32 i32 i32) (result i32))) + (import "seal0" "seal_input" (func $seal_input (param i32 i32))) + (import "seal0" "seal_return" (func $seal_return (param i32 i32 i32))) + (import "env" "memory" (memory 1 1)) + + ;; 0x1000 = 4k in little endian + ;; Size of input buffer + (data (i32.const 0) "\00\10") + + (func $assert (param i32) + (block $ok + (br_if $ok + (get_local 0) + ) + (unreachable) + ) + ) + + (func (export "call") + ;; Receive the encoded call + (call $seal_input + (i32.const 4) ;; Pointer to the input buffer + (i32.const 0) ;; Pointer to the buffer length (before call) and to the copied data length (after call) + ) + ;; Input data layout. + ;; [0..4) - size of the call + ;; [4..) - message + + ;; Call xcm_execute with provided input. + (call $assert + (i32.eq + (call $xcm_execute + (i32.const 4) ;; Pointer where the message is stored + (i32.load (i32.const 0)) ;; Size of the message + (i32.const 100) ;; Pointer to the where the outcome is stored + ) + (i32.const 0) + ) + ) + + (call $seal_return + (i32.const 0) ;; flags + (i32.const 100) ;; Pointer to returned value + (i32.const 10) ;; length of returned value + ) + ) + + (func (export "deploy")) +) + diff --git a/substrate/frame/contracts/fixtures/data/xcm_send.wat b/substrate/frame/contracts/fixtures/data/xcm_send.wat new file mode 100644 index 000000000000..9eec6388de9b --- /dev/null +++ b/substrate/frame/contracts/fixtures/data/xcm_send.wat @@ -0,0 +1,59 @@ +;; This passes its input to `seal_xcm_send` and returns the return value to its caller. +(module + (import "seal0" "xcm_send" (func $xcm_send (param i32 i32 i32 i32) (result i32))) + (import "seal0" "seal_input" (func $seal_input (param i32 i32))) + (import "seal0" "seal_return" (func $seal_return (param i32 i32 i32))) + (import "env" "memory" (memory 1 1)) + + ;; 0x1000 = 4k in little endian + ;; size of input buffer + (data (i32.const 0) "\00\10") + + (func $assert (param i32) + (block $ok + (br_if $ok + (get_local 0) + ) + (unreachable) + ) + ) + + (func (export "call") + + ;; Receive the encoded call + (call $seal_input + (i32.const 4) ;; Pointer to the input buffer + (i32.const 0) ;; Size of the length buffer + ) + + ;; Input data layout. + ;; [0..4) - size of the call + ;; [4..7) - dest + ;; [7..) - message + + ;; Call xcm_send with provided input. + (call $assert + (i32.eq + (call $xcm_send + (i32.const 4) ;; Pointer where the dest is stored + (i32.const 7) ;; Pointer where the message is stored + (i32.sub + (i32.load (i32.const 0)) ;; length of the input buffer + (i32.const 3) ;; Size of the XCM dest + ) + (i32.const 100) ;; Pointer to the where the message_id is stored + ) + (i32.const 0) + ) + ) + + ;; Return the the message_id + (call $seal_return + (i32.const 0) ;; flags + (i32.const 100) ;; Pointer to returned value + (i32.const 32) ;; length of returned value + ) + ) + + (func (export "deploy")) +) diff --git a/substrate/frame/contracts/fixtures/src/lib.rs b/substrate/frame/contracts/fixtures/src/lib.rs index 32f4023e6446..48117f7ca944 100644 --- a/substrate/frame/contracts/fixtures/src/lib.rs +++ b/substrate/frame/contracts/fixtures/src/lib.rs @@ -23,6 +23,8 @@ fn fixtures_root_dir() -> PathBuf { // When `CARGO_MANIFEST_DIR` is not set, Rust resolves relative paths from the root folder (Err(_), _) => "substrate/frame/contracts/fixtures/data".into(), (Ok(path), Ok(s)) if s == "pallet-contracts" => PathBuf::from(path).join("fixtures/data"), + (Ok(path), Ok(s)) if s == "pallet-contracts-mock-network" => + PathBuf::from(path).parent().unwrap().join("fixtures/data"), (Ok(_), pkg_name) => panic!("Failed to resolve fixture dir for tests from {pkg_name:?}."), } } diff --git a/substrate/frame/contracts/mock-network/Cargo.toml b/substrate/frame/contracts/mock-network/Cargo.toml new file mode 100644 index 000000000000..9d5fe1aaf4ec --- /dev/null +++ b/substrate/frame/contracts/mock-network/Cargo.toml @@ -0,0 +1,91 @@ +[package] +name = "pallet-contracts-mock-network" +version = "1.0.0" +authors.workspace = true +edition.workspace = true +license.workspace = true +homepage = "https://substrate.io" +repository.workspace = true +description = "A mock network for testing pallet-contracts" + +[dependencies] +codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false, features = [ "derive", "max-encoded-len"] } + +frame-support = { path = "../../support", default-features = false} +frame-system = { path = "../../system", default-features = false} +pallet-assets = { path = "../../assets" } +pallet-balances = { path = "../../balances" } +pallet-contracts = { path = ".." } +pallet-contracts-primitives = { path = "../primitives", default-features = false} +pallet-contracts-proc-macro = { path = "../proc-macro" } +pallet-insecure-randomness-collective-flip = { path = "../../insecure-randomness-collective-flip" } +pallet-message-queue = { path = "../../message-queue" } +pallet-proxy = { path = "../../proxy" } +pallet-timestamp = { path = "../../timestamp" } +pallet-utility = { path = "../../utility" } +pallet-xcm = { path = "../../../../polkadot/xcm/pallet-xcm", default-features = false} +polkadot-parachain-primitives = { path = "../../../../polkadot/parachain" } +polkadot-primitives = { path = "../../../../polkadot/primitives" } +polkadot-runtime-parachains = {path = "../../../../polkadot/runtime/parachains"} +scale-info = { version = "2.10.0", default-features = false, features = ["derive"] } +sp-api = { path = "../../../primitives/api", default-features = false} +sp-core = { path = "../../../primitives/core", default-features = false} +sp-io = { path = "../../../primitives/io", default-features = false} +sp-keystore = { path = "../../../primitives/keystore" } +sp-runtime = { path = "../../../primitives/runtime", default-features = false} +sp-std = { path = "../../../primitives/std", default-features = false} +sp-tracing = { path = "../../../primitives/tracing" } +xcm = { package = "staging-xcm", path = "../../../../polkadot/xcm", default-features = false} +xcm-builder = {package = "staging-xcm-builder", path = "../../../../polkadot/xcm/xcm-builder"} +xcm-executor = { package = "staging-xcm-executor", path = "../../../../polkadot/xcm/xcm-executor", default-features = false} +xcm-simulator = {path = "../../../../polkadot/xcm/xcm-simulator"} + +[dev-dependencies] +assert_matches = "1" +pretty_assertions = "1" +pallet-contracts-fixtures = { path = "../fixtures" } + +[features] +default = [ "std" ] +std = [ + "codec/std", + "frame-support/std", + "frame-system/std", + "pallet-balances/std", + "pallet-contracts-primitives/std", + "pallet-contracts-proc-macro/full", + "pallet-contracts/std", + "pallet-insecure-randomness-collective-flip/std", + "pallet-proxy/std", + "pallet-timestamp/std", + "pallet-utility/std", + "pallet-xcm/std", + "scale-info/std", + "sp-api/std", + "sp-core/std", + "sp-io/std", + "sp-keystore/std", + "sp-runtime/std", + "sp-std/std", + "xcm-executor/std", + "xcm/std", +] + +runtime-benchmarks = [ + "frame-support/runtime-benchmarks", + "frame-system/runtime-benchmarks", + "pallet-assets/runtime-benchmarks", + "pallet-balances/runtime-benchmarks", + "pallet-contracts/runtime-benchmarks", + "pallet-message-queue/runtime-benchmarks", + "pallet-proxy/runtime-benchmarks", + "pallet-timestamp/runtime-benchmarks", + "pallet-utility/runtime-benchmarks", + "pallet-xcm/runtime-benchmarks", + "polkadot-parachain-primitives/runtime-benchmarks", + "polkadot-primitives/runtime-benchmarks", + "polkadot-runtime-parachains/runtime-benchmarks", + "sp-runtime/runtime-benchmarks", + "xcm-builder/runtime-benchmarks", + "xcm-executor/runtime-benchmarks", +] diff --git a/substrate/frame/contracts/mock-network/src/lib.rs b/substrate/frame/contracts/mock-network/src/lib.rs new file mode 100644 index 000000000000..345c69541b6f --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/lib.rs @@ -0,0 +1,151 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +pub mod mocks; +pub mod parachain; +pub mod primitives; +pub mod relay_chain; + +#[cfg(test)] +mod tests; + +use crate::primitives::{AccountId, UNITS}; +use sp_runtime::BuildStorage; +use xcm::latest::{prelude::*, MultiLocation}; +use xcm_executor::traits::ConvertLocation; +use xcm_simulator::{decl_test_network, decl_test_parachain, decl_test_relay_chain, TestExt}; + +// Accounts +pub const ADMIN: sp_runtime::AccountId32 = sp_runtime::AccountId32::new([0u8; 32]); +pub const ALICE: sp_runtime::AccountId32 = sp_runtime::AccountId32::new([1u8; 32]); +pub const BOB: sp_runtime::AccountId32 = sp_runtime::AccountId32::new([2u8; 32]); + +// Balances +pub const INITIAL_BALANCE: u128 = 1_000_000_000 * UNITS; + +decl_test_parachain! { + pub struct ParaA { + Runtime = parachain::Runtime, + XcmpMessageHandler = parachain::MsgQueue, + DmpMessageHandler = parachain::MsgQueue, + new_ext = para_ext(1), + } +} + +decl_test_relay_chain! { + pub struct Relay { + Runtime = relay_chain::Runtime, + RuntimeCall = relay_chain::RuntimeCall, + RuntimeEvent = relay_chain::RuntimeEvent, + XcmConfig = relay_chain::XcmConfig, + MessageQueue = relay_chain::MessageQueue, + System = relay_chain::System, + new_ext = relay_ext(), + } +} + +decl_test_network! { + pub struct MockNet { + relay_chain = Relay, + parachains = vec![ + (1, ParaA), + ], + } +} + +pub fn relay_sovereign_account_id() -> AccountId { + let location: MultiLocation = (Parent,).into(); + parachain::SovereignAccountOf::convert_location(&location).unwrap() +} + +pub fn parachain_sovereign_account_id(para: u32) -> AccountId { + let location: MultiLocation = (Parachain(para),).into(); + relay_chain::SovereignAccountOf::convert_location(&location).unwrap() +} + +pub fn parachain_account_sovereign_account_id( + para: u32, + who: sp_runtime::AccountId32, +) -> AccountId { + let location: MultiLocation = ( + Parachain(para), + AccountId32 { network: Some(relay_chain::RelayNetwork::get()), id: who.into() }, + ) + .into(); + relay_chain::SovereignAccountOf::convert_location(&location).unwrap() +} + +pub fn para_ext(para_id: u32) -> sp_io::TestExternalities { + use parachain::{MsgQueue, Runtime, System}; + + let mut t = frame_system::GenesisConfig::::default().build_storage().unwrap(); + + pallet_balances::GenesisConfig:: { + balances: vec![ + (ALICE, INITIAL_BALANCE), + (relay_sovereign_account_id(), INITIAL_BALANCE), + (BOB, INITIAL_BALANCE), + ], + } + .assimilate_storage(&mut t) + .unwrap(); + + pallet_assets::GenesisConfig:: { + assets: vec![ + (0u128, ADMIN, false, 1u128), // Create derivative asset for relay's native token + ], + metadata: Default::default(), + accounts: vec![ + (0u128, ALICE, INITIAL_BALANCE), + (0u128, relay_sovereign_account_id(), INITIAL_BALANCE), + ], + } + .assimilate_storage(&mut t) + .unwrap(); + + let mut ext = sp_io::TestExternalities::new(t); + ext.execute_with(|| { + sp_tracing::try_init_simple(); + System::set_block_number(1); + MsgQueue::set_para_id(para_id.into()); + }); + ext +} + +pub fn relay_ext() -> sp_io::TestExternalities { + use relay_chain::{Runtime, System}; + + let mut t = frame_system::GenesisConfig::::default().build_storage().unwrap(); + + pallet_balances::GenesisConfig:: { + balances: vec![ + (ALICE, INITIAL_BALANCE), + (parachain_sovereign_account_id(1), INITIAL_BALANCE), + (parachain_account_sovereign_account_id(1, ALICE), INITIAL_BALANCE), + ], + } + .assimilate_storage(&mut t) + .unwrap(); + + let mut ext = sp_io::TestExternalities::new(t); + ext.execute_with(|| { + System::set_block_number(1); + }); + ext +} + +pub type ParachainPalletXcm = pallet_xcm::Pallet; +pub type ParachainBalances = pallet_balances::Pallet; diff --git a/substrate/frame/contracts/mock-network/src/mocks.rs b/substrate/frame/contracts/mock-network/src/mocks.rs new file mode 100644 index 000000000000..bf3baec7a524 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/mocks.rs @@ -0,0 +1,18 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +pub mod msg_queue; +pub mod relay_message_queue; diff --git a/substrate/frame/contracts/mock-network/src/mocks/msg_queue.rs b/substrate/frame/contracts/mock-network/src/mocks/msg_queue.rs new file mode 100644 index 000000000000..82fb8590e269 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/mocks/msg_queue.rs @@ -0,0 +1,168 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +//! Parachain runtime mock. + +use codec::{Decode, Encode}; + +use frame_support::weights::Weight; +use polkadot_parachain_primitives::primitives::{ + DmpMessageHandler, Id as ParaId, XcmpMessageFormat, XcmpMessageHandler, +}; +use polkadot_primitives::BlockNumber as RelayBlockNumber; +use sp_runtime::traits::{Get, Hash}; + +use sp_std::prelude::*; +use xcm::{latest::prelude::*, VersionedXcm}; + +#[frame_support::pallet] +pub mod pallet { + use super::*; + use frame_support::pallet_prelude::*; + + #[pallet::config] + pub trait Config: frame_system::Config { + type RuntimeEvent: From> + IsType<::RuntimeEvent>; + type XcmExecutor: ExecuteXcm; + } + + #[pallet::call] + impl Pallet {} + + #[pallet::pallet] + #[pallet::without_storage_info] + pub struct Pallet(_); + + #[pallet::storage] + #[pallet::getter(fn parachain_id)] + pub(super) type ParachainId = StorageValue<_, ParaId, ValueQuery>; + + #[pallet::storage] + #[pallet::getter(fn received_dmp)] + /// A queue of received DMP messages + pub(super) type ReceivedDmp = StorageValue<_, Vec>, ValueQuery>; + + impl Get for Pallet { + fn get() -> ParaId { + Self::parachain_id() + } + } + + pub type MessageId = [u8; 32]; + + #[pallet::event] + #[pallet::generate_deposit(pub(super) fn deposit_event)] + pub enum Event { + /// Some XCM was executed OK. + Success(Option), + /// Some XCM failed. + Fail(Option, XcmError), + /// Bad XCM version used. + BadVersion(Option), + /// Bad XCM format used. + BadFormat(Option), + + // DMP + /// Downward message is invalid XCM. + InvalidFormat(MessageId), + /// Downward message is unsupported version of XCM. + UnsupportedVersion(MessageId), + /// Downward message executed with the given outcome. + ExecutedDownward(MessageId, Outcome), + } + + impl Pallet { + pub fn set_para_id(para_id: ParaId) { + ParachainId::::put(para_id); + } + + fn handle_xcmp_message( + sender: ParaId, + _sent_at: RelayBlockNumber, + xcm: VersionedXcm, + max_weight: Weight, + ) -> Result { + let hash = Encode::using_encoded(&xcm, T::Hashing::hash); + let message_hash = Encode::using_encoded(&xcm, sp_io::hashing::blake2_256); + let (result, event) = match Xcm::::try_from(xcm) { + Ok(xcm) => { + let location = (Parent, Parachain(sender.into())); + match T::XcmExecutor::execute_xcm(location, xcm, message_hash, max_weight) { + Outcome::Error(e) => (Err(e), Event::Fail(Some(hash), e)), + Outcome::Complete(w) => (Ok(w), Event::Success(Some(hash))), + // As far as the caller is concerned, this was dispatched without error, so + // we just report the weight used. + Outcome::Incomplete(w, e) => (Ok(w), Event::Fail(Some(hash), e)), + } + }, + Err(()) => (Err(XcmError::UnhandledXcmVersion), Event::BadVersion(Some(hash))), + }; + Self::deposit_event(event); + result + } + } + + impl XcmpMessageHandler for Pallet { + fn handle_xcmp_messages<'a, I: Iterator>( + iter: I, + max_weight: Weight, + ) -> Weight { + for (sender, sent_at, data) in iter { + let mut data_ref = data; + let _ = XcmpMessageFormat::decode(&mut data_ref) + .expect("Simulator encodes with versioned xcm format; qed"); + + let mut remaining_fragments = data_ref; + while !remaining_fragments.is_empty() { + if let Ok(xcm) = + VersionedXcm::::decode(&mut remaining_fragments) + { + let _ = Self::handle_xcmp_message(sender, sent_at, xcm, max_weight); + } else { + debug_assert!(false, "Invalid incoming XCMP message data"); + } + } + } + max_weight + } + } + + impl DmpMessageHandler for Pallet { + fn handle_dmp_messages( + iter: impl Iterator)>, + limit: Weight, + ) -> Weight { + for (_i, (_sent_at, data)) in iter.enumerate() { + let id = sp_io::hashing::blake2_256(&data[..]); + let maybe_versioned = VersionedXcm::::decode(&mut &data[..]); + match maybe_versioned { + Err(_) => { + Self::deposit_event(Event::InvalidFormat(id)); + }, + Ok(versioned) => match Xcm::try_from(versioned) { + Err(()) => Self::deposit_event(Event::UnsupportedVersion(id)), + Ok(x) => { + let outcome = T::XcmExecutor::execute_xcm(Parent, x.clone(), id, limit); + >::append(x); + Self::deposit_event(Event::ExecutedDownward(id, outcome)); + }, + }, + } + } + limit + } + } +} diff --git a/substrate/frame/contracts/mock-network/src/mocks/relay_message_queue.rs b/substrate/frame/contracts/mock-network/src/mocks/relay_message_queue.rs new file mode 100644 index 000000000000..14099965e3f1 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/mocks/relay_message_queue.rs @@ -0,0 +1,52 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +use frame_support::{parameter_types, weights::Weight}; +use xcm::latest::prelude::*; +use xcm_simulator::{ + AggregateMessageOrigin, ProcessMessage, ProcessMessageError, UmpQueueId, WeightMeter, +}; + +use crate::relay_chain::{RuntimeCall, XcmConfig}; + +parameter_types! { + /// Amount of weight that can be spent per block to service messages. + pub MessageQueueServiceWeight: Weight = Weight::from_parts(1_000_000_000, 1_000_000); + pub const MessageQueueHeapSize: u32 = 65_536; + pub const MessageQueueMaxStale: u32 = 16; +} + +/// Message processor to handle any messages that were enqueued into the `MessageQueue` pallet. +pub struct MessageProcessor; +impl ProcessMessage for MessageProcessor { + type Origin = AggregateMessageOrigin; + + fn process_message( + message: &[u8], + origin: Self::Origin, + meter: &mut WeightMeter, + id: &mut [u8; 32], + ) -> Result { + let para = match origin { + AggregateMessageOrigin::Ump(UmpQueueId::Para(para)) => para, + }; + xcm_builder::ProcessXcmMessage::< + Junction, + xcm_executor::XcmExecutor, + RuntimeCall, + >::process_message(message, Junction::Parachain(para.into()), meter, id) + } +} diff --git a/substrate/frame/contracts/mock-network/src/parachain.rs b/substrate/frame/contracts/mock-network/src/parachain.rs new file mode 100644 index 000000000000..1465b02f903b --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/parachain.rs @@ -0,0 +1,353 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +//! Parachain runtime mock. + +mod contracts_config; +use crate::{ + mocks::msg_queue::pallet as mock_msg_queue, + primitives::{AccountId, AssetIdForAssets, Balance}, +}; +use core::marker::PhantomData; +use frame_support::{ + construct_runtime, parameter_types, + traits::{AsEnsureOriginWithArg, Contains, ContainsPair, Everything, EverythingBut, Nothing}, + weights::{ + constants::{WEIGHT_PROOF_SIZE_PER_MB, WEIGHT_REF_TIME_PER_SECOND}, + Weight, + }, +}; +use frame_system::{EnsureRoot, EnsureSigned}; +use pallet_xcm::XcmPassthrough; +use sp_core::{ConstU32, ConstU64, H256}; +use sp_runtime::traits::{Get, IdentityLookup, MaybeEquivalence}; + +use sp_std::prelude::*; +use xcm::latest::prelude::*; +use xcm_builder::{ + AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowTopLevelPaidExecutionFrom, + ConvertedConcreteId, CurrencyAdapter as XcmCurrencyAdapter, EnsureXcmOrigin, + FixedRateOfFungible, FixedWeightBounds, FungiblesAdapter, IsConcrete, NativeAsset, NoChecking, + ParentAsSuperuser, ParentIsPreset, SignedAccountId32AsNative, SignedToAccountId32, + SovereignSignedViaLocation, WithComputedOrigin, +}; +use xcm_executor::{traits::JustTry, Config, XcmExecutor}; + +pub type SovereignAccountOf = + (AccountId32Aliases, ParentIsPreset); + +parameter_types! { + pub const BlockHashCount: u64 = 250; +} + +impl frame_system::Config for Runtime { + type RuntimeOrigin = RuntimeOrigin; + type RuntimeCall = RuntimeCall; + type Nonce = u64; + type Block = Block; + type Hash = H256; + type Hashing = ::sp_runtime::traits::BlakeTwo256; + type AccountId = AccountId; + type Lookup = IdentityLookup; + type RuntimeEvent = RuntimeEvent; + type BlockHashCount = BlockHashCount; + type BlockWeights = (); + type BlockLength = (); + type Version = (); + type PalletInfo = PalletInfo; + type AccountData = pallet_balances::AccountData; + type OnNewAccount = (); + type OnKilledAccount = (); + type DbWeight = (); + type BaseCallFilter = Everything; + type SystemWeightInfo = (); + type SS58Prefix = (); + type OnSetCode = (); + type MaxConsumers = ConstU32<16>; +} + +parameter_types! { + pub ExistentialDeposit: Balance = 1; + pub const MaxLocks: u32 = 50; + pub const MaxReserves: u32 = 50; +} + +impl pallet_balances::Config for Runtime { + type AccountStore = System; + type Balance = Balance; + type DustRemoval = (); + type ExistentialDeposit = ExistentialDeposit; + type FreezeIdentifier = (); + type MaxFreezes = ConstU32<0>; + type MaxHolds = ConstU32<1>; + type MaxLocks = MaxLocks; + type MaxReserves = MaxReserves; + type ReserveIdentifier = [u8; 8]; + type RuntimeEvent = RuntimeEvent; + type RuntimeHoldReason = RuntimeHoldReason; + type RuntimeFreezeReason = RuntimeFreezeReason; + type WeightInfo = (); +} + +parameter_types! { + pub const AssetDeposit: u128 = 1_000_000; + pub const MetadataDepositBase: u128 = 1_000_000; + pub const MetadataDepositPerByte: u128 = 100_000; + pub const AssetAccountDeposit: u128 = 1_000_000; + pub const ApprovalDeposit: u128 = 1_000_000; + pub const AssetsStringLimit: u32 = 50; + pub const RemoveItemsLimit: u32 = 50; +} + +impl pallet_assets::Config for Runtime { + type RuntimeEvent = RuntimeEvent; + type Balance = Balance; + type AssetId = AssetIdForAssets; + type Currency = Balances; + type CreateOrigin = AsEnsureOriginWithArg>; + type ForceOrigin = EnsureRoot; + type AssetDeposit = AssetDeposit; + type MetadataDepositBase = MetadataDepositBase; + type MetadataDepositPerByte = MetadataDepositPerByte; + type AssetAccountDeposit = AssetAccountDeposit; + type ApprovalDeposit = ApprovalDeposit; + type StringLimit = AssetsStringLimit; + type Freezer = (); + type Extra = (); + type WeightInfo = (); + type RemoveItemsLimit = RemoveItemsLimit; + type AssetIdParameter = AssetIdForAssets; + type CallbackHandle = (); + #[cfg(feature = "runtime-benchmarks")] + type BenchmarkHelper = (); +} + +parameter_types! { + pub const ReservedXcmpWeight: Weight = Weight::from_parts(WEIGHT_REF_TIME_PER_SECOND.saturating_div(4), 0); + pub const ReservedDmpWeight: Weight = Weight::from_parts(WEIGHT_REF_TIME_PER_SECOND.saturating_div(4), 0); +} + +parameter_types! { + pub const KsmLocation: MultiLocation = MultiLocation::parent(); + pub const TokenLocation: MultiLocation = Here.into_location(); + pub const RelayNetwork: NetworkId = ByGenesis([0; 32]); + pub UniversalLocation: InteriorMultiLocation = Parachain(MsgQueue::parachain_id().into()).into(); +} + +pub type XcmOriginToCallOrigin = ( + SovereignSignedViaLocation, + ParentAsSuperuser, + SignedAccountId32AsNative, + XcmPassthrough, +); + +parameter_types! { + pub const XcmInstructionWeight: Weight = Weight::from_parts(1_000, 1_000); + pub TokensPerSecondPerMegabyte: (AssetId, u128, u128) = (Concrete(Parent.into()), 1_000_000_000_000, 1024 * 1024); + pub const MaxInstructions: u32 = 100; + pub const MaxAssetsIntoHolding: u32 = 64; + pub ForeignPrefix: MultiLocation = (Parent,).into(); + pub CheckingAccount: AccountId = PolkadotXcm::check_account(); + pub TrustedLockPairs: (MultiLocation, MultiAssetFilter) = + (Parent.into(), Wild(AllOf { id: Concrete(Parent.into()), fun: WildFungible })); +} + +pub fn estimate_message_fee(number_of_instructions: u64) -> u128 { + let weight = estimate_weight(number_of_instructions); + + estimate_fee_for_weight(weight) +} + +pub fn estimate_weight(number_of_instructions: u64) -> Weight { + XcmInstructionWeight::get().saturating_mul(number_of_instructions) +} + +pub fn estimate_fee_for_weight(weight: Weight) -> u128 { + let (_, units_per_second, units_per_mb) = TokensPerSecondPerMegabyte::get(); + + units_per_second * (weight.ref_time() as u128) / (WEIGHT_REF_TIME_PER_SECOND as u128) + + units_per_mb * (weight.proof_size() as u128) / (WEIGHT_PROOF_SIZE_PER_MB as u128) +} + +pub type LocalBalancesTransactor = + XcmCurrencyAdapter, SovereignAccountOf, AccountId, ()>; + +pub struct FromMultiLocationToAsset(PhantomData<(MultiLocation, AssetId)>); +impl MaybeEquivalence + for FromMultiLocationToAsset +{ + fn convert(value: &MultiLocation) -> Option { + match *value { + MultiLocation { parents: 1, interior: Here } => Some(0 as AssetIdForAssets), + MultiLocation { parents: 1, interior: X1(Parachain(para_id)) } => + Some(para_id as AssetIdForAssets), + _ => None, + } + } + + fn convert_back(_id: &AssetIdForAssets) -> Option { + None + } +} + +pub type ForeignAssetsTransactor = FungiblesAdapter< + Assets, + ConvertedConcreteId< + AssetIdForAssets, + Balance, + FromMultiLocationToAsset, + JustTry, + >, + SovereignAccountOf, + AccountId, + NoChecking, + CheckingAccount, +>; + +/// Means for transacting assets on this chain +pub type AssetTransactors = (LocalBalancesTransactor, ForeignAssetsTransactor); + +pub struct ParentRelay; +impl Contains for ParentRelay { + fn contains(location: &MultiLocation) -> bool { + location.contains_parents_only(1) + } +} +pub struct ThisParachain; +impl Contains for ThisParachain { + fn contains(location: &MultiLocation) -> bool { + matches!( + location, + MultiLocation { parents: 0, interior: Junctions::X1(Junction::AccountId32 { .. }) } + ) + } +} + +pub type XcmRouter = crate::ParachainXcmRouter; + +pub type Barrier = ( + xcm_builder::AllowUnpaidExecutionFrom, + WithComputedOrigin< + (AllowExplicitUnpaidExecutionFrom, AllowTopLevelPaidExecutionFrom), + UniversalLocation, + ConstU32<1>, + >, +); + +parameter_types! { + pub NftCollectionOne: MultiAssetFilter + = Wild(AllOf { fun: WildNonFungible, id: Concrete((Parent, GeneralIndex(1)).into()) }); + pub NftCollectionOneForRelay: (MultiAssetFilter, MultiLocation) + = (NftCollectionOne::get(), Parent.into()); + pub RelayNativeAsset: MultiAssetFilter = Wild(AllOf { fun: WildFungible, id: Concrete((Parent, Here).into()) }); + pub RelayNativeAssetForRelay: (MultiAssetFilter, MultiLocation) = (RelayNativeAsset::get(), Parent.into()); +} +pub type TrustedTeleporters = + (xcm_builder::Case, xcm_builder::Case); +pub type TrustedReserves = EverythingBut>; + +pub struct XcmConfig; +impl Config for XcmConfig { + type RuntimeCall = RuntimeCall; + type XcmSender = XcmRouter; + type AssetTransactor = AssetTransactors; + type OriginConverter = XcmOriginToCallOrigin; + type IsReserve = (NativeAsset, TrustedReserves); + type IsTeleporter = TrustedTeleporters; + type UniversalLocation = UniversalLocation; + type Barrier = Barrier; + type Weigher = FixedWeightBounds; + type Trader = FixedRateOfFungible; + type ResponseHandler = PolkadotXcm; + type AssetTrap = PolkadotXcm; + type AssetLocker = PolkadotXcm; + type AssetExchanger = (); + type AssetClaims = PolkadotXcm; + type SubscriptionService = PolkadotXcm; + type PalletInstancesInfo = AllPalletsWithSystem; + type FeeManager = (); + type MaxAssetsIntoHolding = MaxAssetsIntoHolding; + type MessageExporter = (); + type UniversalAliases = Nothing; + type CallDispatcher = RuntimeCall; + type SafeCallFilter = Everything; + type Aliasers = Nothing; +} + +impl mock_msg_queue::Config for Runtime { + type RuntimeEvent = RuntimeEvent; + type XcmExecutor = XcmExecutor; +} + +pub type LocalOriginToLocation = SignedToAccountId32; + +pub struct TrustedLockerCase(PhantomData); +impl> ContainsPair + for TrustedLockerCase +{ + fn contains(origin: &MultiLocation, asset: &MultiAsset) -> bool { + let (o, a) = T::get(); + a.matches(asset) && &o == origin + } +} + +impl pallet_xcm::Config for Runtime { + type RuntimeEvent = RuntimeEvent; + type SendXcmOrigin = EnsureXcmOrigin; + type XcmRouter = XcmRouter; + type ExecuteXcmOrigin = EnsureXcmOrigin; + type XcmExecuteFilter = Everything; + type XcmExecutor = XcmExecutor; + type XcmTeleportFilter = Nothing; + type XcmReserveTransferFilter = Everything; + type Weigher = FixedWeightBounds; + type UniversalLocation = UniversalLocation; + type RuntimeOrigin = RuntimeOrigin; + type RuntimeCall = RuntimeCall; + const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100; + type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion; + type Currency = Balances; + type CurrencyMatcher = IsConcrete; + type TrustedLockers = TrustedLockerCase; + type SovereignAccountOf = SovereignAccountOf; + type MaxLockers = ConstU32<8>; + type MaxRemoteLockConsumers = ConstU32<0>; + type RemoteLockConsumerIdentifier = (); + type WeightInfo = pallet_xcm::TestWeightInfo; + type AdminOrigin = EnsureRoot; +} + +type Block = frame_system::mocking::MockBlock; + +impl pallet_timestamp::Config for Runtime { + type Moment = u64; + type OnTimestampSet = (); + type MinimumPeriod = ConstU64<1>; + type WeightInfo = (); +} + +construct_runtime!( + pub enum Runtime + { + System: frame_system, + Balances: pallet_balances, + Timestamp: pallet_timestamp, + MsgQueue: mock_msg_queue, + PolkadotXcm: pallet_xcm, + Contracts: pallet_contracts, + Assets: pallet_assets, + } +); diff --git a/substrate/frame/contracts/mock-network/src/parachain/contracts_config.rs b/substrate/frame/contracts/mock-network/src/parachain/contracts_config.rs new file mode 100644 index 000000000000..dadba394e264 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/parachain/contracts_config.rs @@ -0,0 +1,98 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +use super::{Balances, Runtime, RuntimeCall, RuntimeEvent}; +use crate::{ + parachain, + parachain::RuntimeHoldReason, + primitives::{Balance, CENTS}, +}; +use frame_support::{ + parameter_types, + traits::{ConstBool, ConstU32, Contains, Randomness}, + weights::Weight, +}; +use frame_system::pallet_prelude::BlockNumberFor; +use pallet_xcm::BalanceOf; +use sp_runtime::{traits::Convert, Perbill}; + +pub const fn deposit(items: u32, bytes: u32) -> Balance { + items as Balance * 1 * CENTS + (bytes as Balance) * 1 * CENTS +} + +parameter_types! { + pub const DepositPerItem: Balance = deposit(1, 0); + pub const DepositPerByte: Balance = deposit(0, 1); + pub const DefaultDepositLimit: Balance = deposit(1024, 1024 * 1024); + pub Schedule: pallet_contracts::Schedule = Default::default(); + pub const CodeHashLockupDepositPercent: Perbill = Perbill::from_percent(0); + pub const MaxDelegateDependencies: u32 = 32; +} + +pub struct DummyRandomness(sp_std::marker::PhantomData); + +impl Randomness> for DummyRandomness { + fn random(_subject: &[u8]) -> (T::Hash, BlockNumberFor) { + (Default::default(), Default::default()) + } +} + +impl Convert> for Runtime { + fn convert(w: Weight) -> BalanceOf { + w.ref_time().into() + } +} + +#[derive(Clone, Default)] +pub struct Filters; + +impl Contains for Filters { + fn contains(call: &RuntimeCall) -> bool { + match call { + parachain::RuntimeCall::Contracts(_) => true, + _ => false, + } + } +} + +impl pallet_contracts::Config for Runtime { + type AddressGenerator = pallet_contracts::DefaultAddressGenerator; + type CallFilter = Filters; + type CallStack = [pallet_contracts::Frame; 5]; + type ChainExtension = (); + type CodeHashLockupDepositPercent = CodeHashLockupDepositPercent; + type Currency = Balances; + type DefaultDepositLimit = DefaultDepositLimit; + type DepositPerByte = DepositPerByte; + type DepositPerItem = DepositPerItem; + type MaxCodeLen = ConstU32<{ 123 * 1024 }>; + type MaxDebugBufferLen = ConstU32<{ 2 * 1024 * 1024 }>; + type MaxDelegateDependencies = MaxDelegateDependencies; + type MaxStorageKeyLen = ConstU32<128>; + type Migrations = (); + type Randomness = DummyRandomness; + type RuntimeCall = RuntimeCall; + type RuntimeEvent = RuntimeEvent; + type RuntimeHoldReason = RuntimeHoldReason; + type Schedule = Schedule; + type Time = super::Timestamp; + type UnsafeUnstableInterface = ConstBool; + type WeightInfo = (); + type WeightPrice = Self; + type Debug = (); + type Environment = (); + type Xcm = pallet_xcm::Pallet; +} diff --git a/substrate/frame/contracts/mock-network/src/primitives.rs b/substrate/frame/contracts/mock-network/src/primitives.rs new file mode 100644 index 000000000000..efc42772f88a --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/primitives.rs @@ -0,0 +1,23 @@ +// Copyright (C) Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +pub type Balance = u128; + +pub const UNITS: Balance = 10_000_000_000; +pub const CENTS: Balance = UNITS / 100; // 100_000_000 + +pub type AccountId = sp_runtime::AccountId32; +pub type AssetIdForAssets = u128; diff --git a/substrate/frame/contracts/mock-network/src/relay_chain.rs b/substrate/frame/contracts/mock-network/src/relay_chain.rs new file mode 100644 index 000000000000..c59c8e4bfa84 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/relay_chain.rs @@ -0,0 +1,236 @@ +// Copyright Parity Technologies (UK) Ltd. +// This file is part of Polkadot. + +// Polkadot 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. + +// Polkadot 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 Polkadot. If not, see . + +//! Relay chain runtime mock. + +use frame_support::{ + construct_runtime, parameter_types, + traits::{Contains, Everything, Nothing}, + weights::Weight, +}; + +use frame_system::EnsureRoot; +use sp_core::{ConstU32, H256}; +use sp_runtime::traits::IdentityLookup; + +use polkadot_parachain_primitives::primitives::Id as ParaId; +use polkadot_runtime_parachains::{configuration, origin, shared}; +use xcm::latest::prelude::*; +use xcm_builder::{ + AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowSubscriptionsFrom, + AllowTopLevelPaidExecutionFrom, ChildParachainAsNative, ChildParachainConvertsVia, + ChildSystemParachainAsSuperuser, CurrencyAdapter as XcmCurrencyAdapter, DescribeAllTerminal, + DescribeFamily, FixedRateOfFungible, FixedWeightBounds, HashedDescription, IsConcrete, + SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, WithComputedOrigin, +}; +use xcm_executor::{Config, XcmExecutor}; + +use super::{ + mocks::relay_message_queue::*, + primitives::{AccountId, Balance}, +}; + +parameter_types! { + pub const BlockHashCount: u64 = 250; +} + +impl frame_system::Config for Runtime { + type RuntimeOrigin = RuntimeOrigin; + type RuntimeCall = RuntimeCall; + type Block = Block; + type Nonce = u64; + type Hash = H256; + type Hashing = ::sp_runtime::traits::BlakeTwo256; + type AccountId = AccountId; + type Lookup = IdentityLookup; + type RuntimeEvent = RuntimeEvent; + type BlockHashCount = BlockHashCount; + type BlockWeights = (); + type BlockLength = (); + type Version = (); + type PalletInfo = PalletInfo; + type AccountData = pallet_balances::AccountData; + type OnNewAccount = (); + type OnKilledAccount = (); + type DbWeight = (); + type BaseCallFilter = Everything; + type SystemWeightInfo = (); + type SS58Prefix = (); + type OnSetCode = (); + type MaxConsumers = ConstU32<16>; +} + +parameter_types! { + pub ExistentialDeposit: Balance = 1; + pub const MaxLocks: u32 = 50; + pub const MaxReserves: u32 = 50; +} + +impl pallet_balances::Config for Runtime { + type MaxLocks = MaxLocks; + type Balance = Balance; + type RuntimeEvent = RuntimeEvent; + type DustRemoval = (); + type ExistentialDeposit = ExistentialDeposit; + type AccountStore = System; + type WeightInfo = (); + type MaxReserves = MaxReserves; + type ReserveIdentifier = [u8; 8]; + type FreezeIdentifier = (); + type MaxHolds = ConstU32<0>; + type MaxFreezes = ConstU32<0>; + type RuntimeHoldReason = RuntimeHoldReason; + type RuntimeFreezeReason = RuntimeFreezeReason; +} + +impl shared::Config for Runtime {} + +impl configuration::Config for Runtime { + type WeightInfo = configuration::TestWeightInfo; +} + +parameter_types! { + pub RelayNetwork: NetworkId = ByGenesis([0; 32]); + pub const TokenLocation: MultiLocation = Here.into_location(); + pub UniversalLocation: InteriorMultiLocation = Here; + pub UnitWeightCost: u64 = 1_000; +} + +pub type SovereignAccountOf = ( + HashedDescription>, + AccountId32Aliases, + ChildParachainConvertsVia, +); + +pub type LocalBalancesTransactor = + XcmCurrencyAdapter, SovereignAccountOf, AccountId, ()>; + +pub type AssetTransactors = LocalBalancesTransactor; + +type LocalOriginConverter = ( + SovereignSignedViaLocation, + ChildParachainAsNative, + SignedAccountId32AsNative, + ChildSystemParachainAsSuperuser, +); + +parameter_types! { + pub const XcmInstructionWeight: Weight = Weight::from_parts(1_000, 1_000); + pub TokensPerSecondPerMegabyte: (AssetId, u128, u128) = + (Concrete(TokenLocation::get()), 1_000_000_000_000, 1024 * 1024); + pub const MaxInstructions: u32 = 100; + pub const MaxAssetsIntoHolding: u32 = 64; +} + +pub struct ChildrenParachains; +impl Contains for ChildrenParachains { + fn contains(location: &MultiLocation) -> bool { + matches!(location, MultiLocation { parents: 0, interior: X1(Parachain(_)) }) + } +} + +pub type XcmRouter = crate::RelayChainXcmRouter; +pub type Barrier = WithComputedOrigin< + ( + AllowExplicitUnpaidExecutionFrom, + AllowTopLevelPaidExecutionFrom, + AllowSubscriptionsFrom, + ), + UniversalLocation, + ConstU32<1>, +>; + +pub struct XcmConfig; +impl Config for XcmConfig { + type RuntimeCall = RuntimeCall; + type XcmSender = XcmRouter; + type AssetTransactor = AssetTransactors; + type OriginConverter = LocalOriginConverter; + type IsReserve = (); + type IsTeleporter = (); + type UniversalLocation = UniversalLocation; + type Barrier = Barrier; + type Weigher = FixedWeightBounds; + type Trader = FixedRateOfFungible; + type ResponseHandler = XcmPallet; + type AssetTrap = XcmPallet; + type AssetLocker = XcmPallet; + type AssetExchanger = (); + type AssetClaims = XcmPallet; + type SubscriptionService = XcmPallet; + type PalletInstancesInfo = AllPalletsWithSystem; + type FeeManager = (); + type MaxAssetsIntoHolding = MaxAssetsIntoHolding; + type MessageExporter = (); + type UniversalAliases = Nothing; + type CallDispatcher = RuntimeCall; + type SafeCallFilter = Everything; + type Aliasers = Nothing; +} + +pub type LocalOriginToLocation = SignedToAccountId32; + +impl pallet_xcm::Config for Runtime { + type RuntimeEvent = RuntimeEvent; + type SendXcmOrigin = xcm_builder::EnsureXcmOrigin; + type XcmRouter = XcmRouter; + type ExecuteXcmOrigin = xcm_builder::EnsureXcmOrigin; + type XcmExecuteFilter = Everything; + type XcmExecutor = XcmExecutor; + type XcmTeleportFilter = Everything; + type XcmReserveTransferFilter = Everything; + type Weigher = FixedWeightBounds; + type UniversalLocation = UniversalLocation; + type RuntimeOrigin = RuntimeOrigin; + type RuntimeCall = RuntimeCall; + const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100; + type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion; + type Currency = Balances; + type CurrencyMatcher = IsConcrete; + type TrustedLockers = (); + type SovereignAccountOf = SovereignAccountOf; + type MaxLockers = ConstU32<8>; + type MaxRemoteLockConsumers = ConstU32<0>; + type RemoteLockConsumerIdentifier = (); + type WeightInfo = pallet_xcm::TestWeightInfo; + type AdminOrigin = EnsureRoot; +} + +impl origin::Config for Runtime {} + +type Block = frame_system::mocking::MockBlock; + +impl pallet_message_queue::Config for Runtime { + type RuntimeEvent = RuntimeEvent; + type Size = u32; + type HeapSize = MessageQueueHeapSize; + type MaxStale = MessageQueueMaxStale; + type ServiceWeight = MessageQueueServiceWeight; + type MessageProcessor = MessageProcessor; + type QueueChangeHandler = (); + type WeightInfo = (); + type QueuePausedQuery = (); +} + +construct_runtime!( + pub enum Runtime { + System: frame_system::{Pallet, Call, Storage, Config, Event}, + Balances: pallet_balances::{Pallet, Call, Storage, Config, Event}, + ParasOrigin: origin::{Pallet, Origin}, + XcmPallet: pallet_xcm::{Pallet, Call, Storage, Event, Origin}, + MessageQueue: pallet_message_queue::{Pallet, Event}, + } +); diff --git a/substrate/frame/contracts/mock-network/src/tests.rs b/substrate/frame/contracts/mock-network/src/tests.rs new file mode 100644 index 000000000000..5193f6570551 --- /dev/null +++ b/substrate/frame/contracts/mock-network/src/tests.rs @@ -0,0 +1,239 @@ +// This file is part of Substrate. + +// Copyright (C) Parity Technologies (UK) Ltd. +// SPDX-License-Identifier: Apache-2.0 + +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +use crate::{ + parachain::{self, Runtime}, + parachain_account_sovereign_account_id, + primitives::{AccountId, CENTS}, + relay_chain, MockNet, ParaA, ParachainBalances, Relay, ALICE, BOB, INITIAL_BALANCE, +}; +use assert_matches::assert_matches; +use codec::{Decode, Encode}; +use frame_support::{ + assert_err, + pallet_prelude::Weight, + traits::{fungibles::Mutate, Currency}, +}; +use pallet_balances::{BalanceLock, Reasons}; +use pallet_contracts::{CollectEvents, DebugInfo, Determinism}; +use pallet_contracts_fixtures::compile_module; +use pallet_contracts_primitives::Code; +use xcm::{v3::prelude::*, VersionedMultiLocation, VersionedXcm}; +use xcm_simulator::TestExt; + +type ParachainContracts = pallet_contracts::Pallet; + +/// Instantiate the tests contract, and fund it with some balance and assets. +fn instantiate_test_contract(name: &str) -> AccountId { + let (wasm, _) = compile_module::(name).unwrap(); + + // Instantiate contract. + let contract_addr = ParaA::execute_with(|| { + ParachainContracts::bare_instantiate( + ALICE, + 0, + Weight::MAX, + None, + Code::Upload(wasm), + vec![], + vec![], + DebugInfo::UnsafeDebug, + CollectEvents::Skip, + ) + .result + .unwrap() + .account_id + }); + + // Funds contract account with some balance and assets. + ParaA::execute_with(|| { + parachain::Balances::make_free_balance_be(&contract_addr, INITIAL_BALANCE); + parachain::Assets::mint_into(0u32.into(), &contract_addr, INITIAL_BALANCE).unwrap(); + }); + Relay::execute_with(|| { + let sovereign_account = parachain_account_sovereign_account_id(1u32, contract_addr.clone()); + relay_chain::Balances::make_free_balance_be(&sovereign_account, INITIAL_BALANCE); + }); + + contract_addr +} + +#[test] +fn test_xcm_execute() { + MockNet::reset(); + + let contract_addr = instantiate_test_contract("xcm_execute"); + + // Execute XCM instructions through the contract. + ParaA::execute_with(|| { + let amount: u128 = 10 * CENTS; + + // The XCM used to transfer funds to Bob. + let message: xcm_simulator::Xcm<()> = Xcm(vec![ + WithdrawAsset(vec![(Here, amount).into()].into()), + DepositAsset { + assets: All.into(), + beneficiary: AccountId32 { network: None, id: BOB.clone().into() }.into(), + }, + ]); + + let result = ParachainContracts::bare_call( + ALICE, + contract_addr.clone(), + 0, + Weight::MAX, + None, + VersionedXcm::V3(message).encode(), + DebugInfo::UnsafeDebug, + CollectEvents::UnsafeCollect, + Determinism::Enforced, + ) + .result + .unwrap(); + + let mut data = &result.data[..]; + let outcome = Outcome::decode(&mut data).expect("Failed to decode xcm_execute Outcome"); + assert_matches!(outcome, Outcome::Complete(_)); + + // Check if the funds are subtracted from the account of Alice and added to the account of + // Bob. + let initial = INITIAL_BALANCE; + assert_eq!(parachain::Assets::balance(0, contract_addr), initial); + assert_eq!(ParachainBalances::free_balance(BOB), initial + amount); + }); +} + +#[test] +fn test_xcm_execute_filtered_call() { + MockNet::reset(); + + let contract_addr = instantiate_test_contract("xcm_execute"); + + ParaA::execute_with(|| { + // `remark` should be rejected, as it is not allowed by our CallFilter. + let call = parachain::RuntimeCall::System(frame_system::Call::remark { remark: vec![] }); + let message: Xcm = Xcm(vec![Transact { + origin_kind: OriginKind::Native, + require_weight_at_most: Weight::MAX, + call: call.encode().into(), + }]); + + let result = ParachainContracts::bare_call( + ALICE, + contract_addr.clone(), + 0, + Weight::MAX, + None, + VersionedXcm::V3(message).encode(), + DebugInfo::UnsafeDebug, + CollectEvents::UnsafeCollect, + Determinism::Enforced, + ); + + assert_err!(result.result, frame_system::Error::::CallFiltered); + }); +} + +#[test] +fn test_xcm_execute_reentrant_call() { + MockNet::reset(); + + let contract_addr = instantiate_test_contract("xcm_execute"); + + ParaA::execute_with(|| { + let transact_call = parachain::RuntimeCall::Contracts(pallet_contracts::Call::call { + dest: contract_addr.clone(), + gas_limit: 1_000_000.into(), + storage_deposit_limit: None, + data: vec![], + value: 0u128, + }); + + // The XCM used to transfer funds to Bob. + let message: Xcm = Xcm(vec![ + Transact { + origin_kind: OriginKind::Native, + require_weight_at_most: 1_000_000_000.into(), + call: transact_call.encode().into(), + }, + ExpectTransactStatus(MaybeErrorCode::Success), + ]); + + let result = ParachainContracts::bare_call( + ALICE, + contract_addr.clone(), + 0, + Weight::MAX, + None, + VersionedXcm::V3(message).encode(), + DebugInfo::UnsafeDebug, + CollectEvents::UnsafeCollect, + Determinism::Enforced, + ) + .result + .unwrap(); + + let mut data = &result.data[..]; + let outcome = Outcome::decode(&mut data).expect("Failed to decode xcm_execute Outcome"); + assert_matches!(outcome, Outcome::Incomplete(_, XcmError::ExpectationFalse)); + + // Funds should not change hands as the XCM transact failed. + assert_eq!(ParachainBalances::free_balance(BOB), INITIAL_BALANCE); + }); +} + +#[test] +fn test_xcm_send() { + MockNet::reset(); + let contract_addr = instantiate_test_contract("xcm_send"); + let fee = parachain::estimate_message_fee(4); // Accounts for the `DescendOrigin` instruction added by `send_xcm` + + // Send XCM instructions through the contract, to lock some funds on the relay chain. + ParaA::execute_with(|| { + let dest = MultiLocation::from(Parent); + let dest = VersionedMultiLocation::V3(dest); + + let message: xcm_simulator::Xcm<()> = Xcm(vec![ + WithdrawAsset((Here, fee).into()), + BuyExecution { fees: (Here, fee).into(), weight_limit: WeightLimit::Unlimited }, + LockAsset { asset: (Here, 5 * CENTS).into(), unlocker: (Parachain(1)).into() }, + ]); + let message = VersionedXcm::V3(message); + let exec = ParachainContracts::bare_call( + ALICE, + contract_addr.clone(), + 0, + Weight::MAX, + None, + (dest, message).encode(), + DebugInfo::UnsafeDebug, + CollectEvents::UnsafeCollect, + Determinism::Enforced, + ); + + let mut data = &exec.result.unwrap().data[..]; + XcmHash::decode(&mut data).expect("Failed to decode xcm_send message_id"); + }); + + Relay::execute_with(|| { + // Check if the funds are locked on the relay chain. + assert_eq!( + relay_chain::Balances::locks(¶chain_account_sovereign_account_id(1, contract_addr)), + vec![BalanceLock { id: *b"py/xcmlk", amount: 5 * CENTS, reasons: Reasons::All }] + ); + }); +} diff --git a/substrate/frame/contracts/src/lib.rs b/substrate/frame/contracts/src/lib.rs index 7d516fbe2496..188679dbf490 100644 --- a/substrate/frame/contracts/src/lib.rs +++ b/substrate/frame/contracts/src/lib.rs @@ -403,6 +403,14 @@ pub mod pallet { /// its type appears in the metadata. Only valid value is `()`. #[pallet::constant] type Environment: Get>; + + /// A type that exposes XCM APIs, allowing contracts to interact with other parachains, and + /// execute XCM programs. + type Xcm: xcm_builder::Controller< + OriginFor, + ::RuntimeCall, + BlockNumberFor, + >; } #[pallet::hooks] @@ -1004,6 +1012,8 @@ pub mod pallet { /// in this error. Note that this usually shouldn't happen as deploying such contracts /// is rejected. NoChainExtension, + /// Failed to decode the XCM program. + XCMDecodeFailed, /// A contract with the same AccountId already exists. DuplicateContract, /// A contract self destructed in its constructor. diff --git a/substrate/frame/contracts/src/tests.rs b/substrate/frame/contracts/src/tests.rs index e7784b02b74c..76fd012852a9 100644 --- a/substrate/frame/contracts/src/tests.rs +++ b/substrate/frame/contracts/src/tests.rs @@ -486,6 +486,7 @@ impl Config for Test { type MaxDelegateDependencies = MaxDelegateDependencies; type Debug = TestDebug; type Environment = (); + type Xcm = (); } pub const ALICE: AccountId32 = AccountId32::new([1u8; 32]); diff --git a/substrate/frame/contracts/src/wasm/runtime.rs b/substrate/frame/contracts/src/wasm/runtime.rs index 4fd52b471a0c..b3013adb790e 100644 --- a/substrate/frame/contracts/src/wasm/runtime.rs +++ b/substrate/frame/contracts/src/wasm/runtime.rs @@ -23,10 +23,16 @@ use crate::{ schedule::HostFnWeights, BalanceOf, CodeHash, Config, DebugBufferVec, Error, SENTINEL, }; - use bitflags::bitflags; use codec::{Decode, DecodeLimit, Encode, MaxEncodedLen}; -use frame_support::{ensure, traits::Get, weights::Weight}; +use frame_support::{ + dispatch::DispatchInfo, + ensure, + pallet_prelude::{DispatchResult, DispatchResultWithPostInfo}, + parameter_types, + traits::Get, + weights::Weight, +}; use pallet_contracts_primitives::{ExecReturnValue, ReturnFlags}; use pallet_contracts_proc_macro::define_env; use sp_io::hashing::{blake2_128, blake2_256, keccak_256, sha2_256}; @@ -36,6 +42,9 @@ use sp_runtime::{ }; use sp_std::{fmt, prelude::*}; use wasmi::{core::HostError, errors::LinkerError, Linker, Memory, Store}; +use xcm::VersionedXcm; + +type CallOf = ::RuntimeCall; /// The maximum nesting depth a contract can use when encoding types. const MAX_DECODE_NESTING: u32 = 256; @@ -113,6 +122,17 @@ pub enum ReturnCode { EcdsaRecoverFailed = 11, /// sr25519 signature verification failed. Sr25519VerifyFailed = 12, + /// The `xcm_execute` call failed. + XcmExecutionFailed = 13, + /// The `xcm_send` call failed. + XcmSendFailed = 14, +} + +parameter_types! { + /// Getter types used by [`crate::api_doc::Current::call_runtime`] + const CallRuntimeFailed: ReturnCode = ReturnCode::CallRuntimeFailed; + /// Getter types used by [`crate::api_doc::Current::xcm_execute`] + const XcmExecutionFailed: ReturnCode = ReturnCode::XcmExecutionFailed; } impl From for ReturnCode { @@ -461,6 +481,29 @@ fn already_charged(_: u32) -> Option { None } +/// Ensure that the XCM program is executable, by checking that it does not contain any [`Transact`] +/// instruction with a call that is not allowed by the CallFilter. +fn ensure_executable(message: &VersionedXcm>) -> DispatchResult { + use frame_support::traits::Contains; + use xcm::prelude::{Transact, Xcm}; + + let mut message: Xcm> = + message.clone().try_into().map_err(|_| Error::::XCMDecodeFailed)?; + + message.iter_mut().try_for_each(|inst| -> DispatchResult { + let Transact { ref mut call, .. } = inst else { return Ok(()) }; + let call = call.ensure_decoded().map_err(|_| Error::::XCMDecodeFailed)?; + + if !::CallFilter::contains(call) { + return Err(frame_system::Error::::CallFiltered.into()) + } + + Ok(()) + })?; + + Ok(()) +} + /// Can only be used for one call. pub struct Runtime<'a, E: Ext + 'a> { ext: &'a mut E, @@ -558,6 +601,32 @@ impl<'a, E: Ext + 'a> Runtime<'a, E> { self.ext.gas_meter_mut().adjust_gas(charged, token); } + /// Charge, Run and adjust gas, for executing the given dispatchable. + fn call_dispatchable< + ErrorReturnCode: Get, + F: FnOnce(&mut Self) -> DispatchResultWithPostInfo, + >( + &mut self, + dispatch_info: DispatchInfo, + run: F, + ) -> Result { + use frame_support::dispatch::extract_actual_weight; + let charged = self.charge_gas(RuntimeCosts::CallRuntime(dispatch_info.weight))?; + let result = run(self); + let actual_weight = extract_actual_weight(&result, &dispatch_info); + self.adjust_gas(charged, RuntimeCosts::CallRuntime(actual_weight)); + match result { + Ok(_) => Ok(ReturnCode::Success), + Err(e) => { + if self.ext.append_debug_buffer("") { + self.ext.append_debug_buffer("call failed with: "); + self.ext.append_debug_buffer(e.into()); + }; + Ok(ErrorReturnCode::get()) + }, + } + } + /// Read designated chunk from the sandbox memory. /// /// Returns `Err` if one of the following conditions occurs: @@ -633,8 +702,10 @@ impl<'a, E: Ext + 'a> Runtime<'a, E> { let ptr = ptr as usize; let mut bound_checked = memory.get(ptr..ptr + len as usize).ok_or_else(|| Error::::OutOfBounds)?; + let decoded = D::decode_all_with_depth_limit(MAX_DECODE_NESTING, &mut bound_checked) .map_err(|_| DispatchError::from(Error::::DecodingFailed))?; + Ok(decoded) } @@ -1023,6 +1094,7 @@ impl<'a, E: Ext + 'a> Runtime<'a, E> { // for every function. #[define_env(doc)] pub mod env { + /// Set the value at the given key in the contract storage. /// /// Equivalent to the newer [`seal1`][`super::api_doc::Version1::set_storage`] version with the @@ -2584,7 +2656,7 @@ pub mod env { /// # Return Value /// /// Returns `ReturnCode::Success` when the dispatchable was successfully executed and - /// returned `Ok`. When the dispatchable was exeuted but returned an error + /// returned `Ok`. When the dispatchable was executed but returned an error /// `ReturnCode::CallRuntimeFailed` is returned. The full error is not /// provided because it is not guaranteed to be stable. /// @@ -2605,23 +2677,118 @@ pub mod env { call_ptr: u32, call_len: u32, ) -> Result { - use frame_support::dispatch::{extract_actual_weight, GetDispatchInfo}; + use frame_support::dispatch::GetDispatchInfo; ctx.charge_gas(RuntimeCosts::CopyFromContract(call_len))?; let call: ::RuntimeCall = ctx.read_sandbox_memory_as_unbounded(memory, call_ptr, call_len)?; - let dispatch_info = call.get_dispatch_info(); - let charged = ctx.charge_gas(RuntimeCosts::CallRuntime(dispatch_info.weight))?; - let result = ctx.ext.call_runtime(call); - let actual_weight = extract_actual_weight(&result, &dispatch_info); - ctx.adjust_gas(charged, RuntimeCosts::CallRuntime(actual_weight)); - match result { - Ok(_) => Ok(ReturnCode::Success), + ctx.call_dispatchable::(call.get_dispatch_info(), |ctx| { + ctx.ext.call_runtime(call) + }) + } + + /// Execute an XCM program locally, using the contract's address as the origin. + /// This is equivalent to dispatching `pallet_xcm::execute` through call_runtime, except that + /// the function is called directly instead of being dispatched. + /// + /// # Parameters + /// + /// - `msg_ptr`: the pointer into the linear memory where the [`xcm::prelude::VersionedXcm`] is + /// placed. + /// - `msg_len`: the length of the message in bytes. + /// - `output_ptr`: the pointer into the linear memory where the [`xcm::prelude::Outcome`] + /// message id is placed. + /// + /// # Return Value + /// + /// Returns `ReturnCode::Success` when the XCM was successfully executed. When the XCM + /// execution fails, `ReturnCode::XcmExecutionFailed` is returned. + #[unstable] + fn xcm_execute( + ctx: _, + memory: _, + msg_ptr: u32, + msg_len: u32, + output_ptr: u32, + ) -> Result { + use frame_support::dispatch::DispatchInfo; + use xcm::VersionedXcm; + use xcm_builder::{ExecuteController, ExecuteControllerWeightInfo}; + + ctx.charge_gas(RuntimeCosts::CopyFromContract(msg_len))?; + let message: VersionedXcm> = + ctx.read_sandbox_memory_as_unbounded(memory, msg_ptr, msg_len)?; + + let execute_weight = + <::Xcm as ExecuteController<_, _>>::WeightInfo::execute(); + let weight = ctx.ext.gas_meter().gas_left().max(execute_weight); + let dispatch_info = DispatchInfo { weight, ..Default::default() }; + + ensure_executable::(&message)?; + ctx.call_dispatchable::(dispatch_info, |ctx| { + let origin = crate::RawOrigin::Signed(ctx.ext.address().clone()).into(); + let outcome = <::Xcm>::execute( + origin, + Box::new(message), + weight.saturating_sub(execute_weight), + )?; + + ctx.write_sandbox_memory(memory, output_ptr, &outcome.encode())?; + let pre_dispatch_weight = + <::Xcm as ExecuteController<_, _>>::WeightInfo::execute(); + Ok(Some(outcome.weight_used().saturating_add(pre_dispatch_weight)).into()) + }) + } + + /// Send an XCM program from the contract to the specified destination. + /// This is equivalent to dispatching `pallet_xcm::send` through `call_runtime`, except that + /// the function is called directly instead of being dispatched. + /// + /// # Parameters + /// + /// - `dest_ptr`: the pointer into the linear memory where the + /// [`xcm::prelude::VersionedMultiLocation`] is placed. + /// - `msg_ptr`: the pointer into the linear memory where the [`xcm::prelude::VersionedXcm`] is + /// placed. + /// - `msg_len`: the length of the message in bytes. + /// - `output_ptr`: the pointer into the linear memory where the [`xcm::v3::XcmHash`] message id + /// is placed. + /// + /// # Return Value + /// + /// Returns `ReturnCode::Success` when the message was successfully sent. When the XCM + /// execution fails, `ReturnCode::CallRuntimeFailed` is returned. + #[unstable] + fn xcm_send( + ctx: _, + memory: _, + dest_ptr: u32, + msg_ptr: u32, + msg_len: u32, + output_ptr: u32, + ) -> Result { + use xcm::{VersionedMultiLocation, VersionedXcm}; + use xcm_builder::{SendController, SendControllerWeightInfo}; + + ctx.charge_gas(RuntimeCosts::CopyFromContract(msg_len))?; + let dest: VersionedMultiLocation = ctx.read_sandbox_memory_as(memory, dest_ptr)?; + + let message: VersionedXcm<()> = + ctx.read_sandbox_memory_as_unbounded(memory, msg_ptr, msg_len)?; + let weight = <::Xcm as SendController<_>>::WeightInfo::send(); + ctx.charge_gas(RuntimeCosts::CallRuntime(weight))?; + let origin = crate::RawOrigin::Signed(ctx.ext.address().clone()).into(); + + match <::Xcm>::send(origin, dest.into(), message.into()) { + Ok(message_id) => { + ctx.write_sandbox_memory(memory, output_ptr, &message_id.encode())?; + Ok(ReturnCode::Success) + }, Err(e) => { if ctx.ext.append_debug_buffer("") { - ctx.ext.append_debug_buffer("seal0::call_runtime failed with: "); + ctx.ext.append_debug_buffer("seal0::xcm_send failed with: "); ctx.ext.append_debug_buffer(e.into()); }; - Ok(ReturnCode::CallRuntimeFailed) + Ok(ReturnCode::XcmSendFailed) }, } }