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Add darwinia dispatch precompile (#173)
* Add darwinia dispatch * Fix test Co-authored-by: Xavier Lau <[email protected]> Co-authored-by: fisher <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| [package] | ||
| authors = ["Darwinia Network <[email protected]>"] | ||
| description = "Call dispatch precompile for EVM pallet." | ||
| edition = "2021" | ||
| homepage = "https://darwinia.network" | ||
| license = "GPL-3.0" | ||
| name = "darwinia-precompile-dispatch" | ||
| readme = "README.md" | ||
| repository = "https://github.com/darwinia-network/darwinia" | ||
| version = "6.0.0" | ||
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| [dependencies] | ||
| # frontier | ||
| fp-evm = { default-features = false, git = "https://github.com/paritytech/frontier", branch = "polkadot-v0.9.30" } | ||
| pallet-evm = { default-features = false, git = "https://github.com/paritytech/frontier", branch = "polkadot-v0.9.30" } | ||
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| # moonbeam | ||
| precompile-utils = { default-features = false, git = "https://github.com/darwinia-network/moonbeam.git", branch = "polkadot-v0.9.30" } | ||
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| # substrate | ||
| frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.30" } | ||
| sp-std = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.30" } | ||
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| [features] | ||
| default = ["std"] | ||
| std = [ | ||
| # frontier | ||
| "fp-evm/std", | ||
| "pallet-evm/std", | ||
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| # moonbeam | ||
| "precompile-utils/std", | ||
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| # substrate | ||
| "frame-support/std", | ||
| "sp-std/std", | ||
| ] |
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| // This file is part of Darwinia. | ||
| // | ||
| // Copyright (C) 2018-2023 Darwinia Network | ||
| // SPDX-License-Identifier: GPL-3.0 | ||
| // | ||
| // Darwinia 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. | ||
| // | ||
| // Darwinia 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 Darwinia. If not, see <https://www.gnu.org/licenses/>. | ||
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| #![cfg_attr(not(feature = "std"), no_std)] | ||
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| extern crate alloc; | ||
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| // std | ||
| use alloc::format; | ||
| use core::marker::PhantomData; | ||
| // frontier | ||
| use fp_evm::{ExitError, PrecompileFailure}; | ||
| // moonbeam | ||
| use frame_support::{ | ||
| codec::{Decode, DecodeLimit as _}, | ||
| dispatch::{DispatchClass, Dispatchable, GetDispatchInfo, Pays, PostDispatchInfo}, | ||
| traits::{ConstU32, Get}, | ||
| }; | ||
| use pallet_evm::{AddressMapping, GasWeightMapping}; | ||
| use precompile_utils::prelude::*; | ||
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| // `DecodeLimit` specifies the max depth a call can use when decoding, as unbounded depth | ||
| // can be used to overflow the stack. | ||
| // Default value is 8, which is the same as in XCM call decoding. | ||
| pub struct Dispatch<T, DecodeLimit = ConstU32<8>> { | ||
| _marker: PhantomData<(T, DecodeLimit)>, | ||
| } | ||
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| #[precompile_utils::precompile] | ||
| impl<T, DecodeLimit> Dispatch<T, DecodeLimit> | ||
| where | ||
| T: pallet_evm::Config, | ||
| T::RuntimeCall: Dispatchable<PostInfo = PostDispatchInfo> + GetDispatchInfo + Decode, | ||
| <T::RuntimeCall as Dispatchable>::RuntimeOrigin: From<Option<T::AccountId>>, | ||
| DecodeLimit: Get<u32>, | ||
| { | ||
| #[precompile::public("execute(bytes)")] | ||
| fn execute( | ||
| handle: &mut impl PrecompileHandle, | ||
| encoded_call: UnboundedBytes, | ||
| ) -> EvmResult<bool> { | ||
| let target_gas = handle.gas_limit(); | ||
| let context = handle.context(); | ||
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| let call = T::RuntimeCall::decode_with_depth_limit( | ||
| DecodeLimit::get(), | ||
| &mut encoded_call.as_bytes(), | ||
| ) | ||
| .map_err(|_| revert("decode failed"))?; | ||
| let info = call.get_dispatch_info(); | ||
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| let valid_call = info.pays_fee == Pays::Yes && info.class == DispatchClass::Normal; | ||
| if !valid_call { | ||
| return Err(revert("invalid call")); | ||
| } | ||
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| if let Some(gas) = target_gas { | ||
| let valid_weight = | ||
| info.weight.ref_time() <= T::GasWeightMapping::gas_to_weight(gas, false).ref_time(); | ||
| if !valid_weight { | ||
| return Err(PrecompileFailure::Error { exit_status: ExitError::OutOfGas }); | ||
| } | ||
| } | ||
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| let origin = T::AddressMapping::into_account_id(context.caller); | ||
| match call.dispatch(Some(origin).into()) { | ||
| Ok(post_info) => { | ||
| let cost = T::GasWeightMapping::weight_to_gas( | ||
| post_info.actual_weight.unwrap_or(info.weight), | ||
| ); | ||
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| handle.record_cost(cost)?; | ||
| Ok(true) | ||
| }, | ||
| Err(e) => Err(revert(format!("dispatch failed: {}", <&'static str>::from(e)))), | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,6 @@ | ||
| [package] | ||
| authors = ["Darwinia Network <[email protected]>"] | ||
| description = "State storage precompiles for EVM pallet." | ||
| description = "State storage precompile for EVM pallet." | ||
| edition = "2021" | ||
| homepage = "https://darwinia.network" | ||
| license = "GPL-3.0" | ||
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