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[package] | ||
name = "static-precompiles" | ||
version = "0.1.0" | ||
edition = "2021" | ||
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[dependencies] | ||
primitive-types = { version = "^0.12", default-features = false, features = ["rlp"] } | ||
evm = { git = "https://github.com/SigmaGmbH/evm.git", default-features = false, commit = "b76ffcde60078059e99f5f34a32b2b743767619b"} | ||
substrate-bn = { version = "0.6.0", default-features = false } | ||
tiny-keccak = { version = "2.0.2", features = ["fips202"] } | ||
sha2 = { version = "0.9.5", default-features=false } | ||
k256 = { version = "0.11.6", default-features = false, features = ["keccak256", "sha2", "ecdsa"] } | ||
sha3 = { version = "0.10", default-features = false } | ||
num = { version = "0.4", default-features = false, features = ["alloc"] } | ||
ed25519-dalek = { version = "2.0.0", default-features=false } | ||
curve25519-dalek = { version = "=4.1.1", default-features = false, features = ["alloc"] } | ||
sgx_tstd = { git = "https://github.com/apache/teaclave-sgx-sdk.git", rev = "3c903bda", features = ["net", "backtrace"], optional = true } | ||
p256 = { version = "0.13.2",default-features = false, features = ["ecdsa"] } | ||
ripemd = { version = "0.1.3", default-features = false } | ||
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[dev-dependencies] | ||
hex = "0.4.3" | ||
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[features] | ||
default = [] | ||
std = [] | ||
sgx = ["sgx_tstd"] | ||
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[patch."https://github.com/apache/teaclave-sgx-sdk.git"] | ||
sgx_tstd = { path = "../../sgxvm/sgx-sdk/sgx_tstd" } |
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#![cfg_attr(not(feature = "std"), no_std)] | ||
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use evm::GasMutState; | ||
use evm::interpreter::error::{ExitError, ExitException, ExitResult}; | ||
use evm::interpreter::runtime::RuntimeState; | ||
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#[cfg(feature = "std")] | ||
use std::vec::Vec; | ||
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#[cfg(not(feature = "std"))] | ||
use sgx_tstd::vec::Vec; | ||
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pub mod blake2f; | ||
pub mod bn128; | ||
pub mod curve25519; | ||
pub mod modexp; | ||
pub mod sha3fips; | ||
pub mod ec_recover; | ||
pub mod sha256; | ||
pub mod ripemd160; | ||
pub mod datacopy; | ||
pub mod secp256r1; | ||
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pub trait Precompile<G> { | ||
fn execute(input: &[u8], gasometer: &mut G) -> (ExitResult, Vec<u8>); | ||
} | ||
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pub trait LinearCostPrecompile { | ||
const BASE: u64; | ||
const WORD: u64; | ||
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fn raw_execute( | ||
input: &[u8], | ||
cost: u64, | ||
) -> (ExitResult, Vec<u8>); | ||
} | ||
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impl<T: LinearCostPrecompile, G: AsRef<RuntimeState> + GasMutState> Precompile<G> for T { | ||
fn execute(input: &[u8], gasometer: &mut G) -> (ExitResult, Vec<u8>) { | ||
let cost = match linear_cost(input.len() as u64, T::BASE, T::WORD) { | ||
Ok(cost) => cost, | ||
Err(e) => return (Err(e), Vec::new()), | ||
}; | ||
if let Err(err) = gasometer.record_gas(cost.into()) { | ||
return (err.into(), Vec::new()); | ||
}; | ||
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T::raw_execute(input, cost) | ||
} | ||
} | ||
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pub fn linear_cost(len: u64, base: u64, word: u64) -> Result<u64, ExitError> { | ||
let cost = base | ||
.checked_add( | ||
word.checked_mul(len.saturating_add(31) / 32) | ||
.ok_or(ExitException::OutOfGas)?, | ||
) | ||
.ok_or(ExitException::OutOfGas)?; | ||
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Ok(cost) | ||
} |