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sha3 && log

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This commit is contained in:
debris 2015-12-22 20:05:14 +01:00
parent 4d6c5762ff
commit ee8c903b0b
2 changed files with 32 additions and 12 deletions
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1
rust-evmjit/Cargo.toml
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@ -5,3 +5,4 @@ authors = ["debris <marek.kotewicz@gmail.com>"]
[dependencies] [dependencies]
libc = "0.2.2" libc = "0.2.2"
tiny-keccak = "1.0"

43
rust-evmjit/src/lib.rs
View File

@ -1,4 +1,4 @@
//! Bare rust wrapper around evmjit //! Bare rust wrapper around evmjit.
//! //!
//! Requires latest version of Ethereum EVM JIT. https://github.com/debris/evmjit //! Requires latest version of Ethereum EVM JIT. https://github.com/debris/evmjit
//! //!
@ -14,6 +14,8 @@
//! ``` //! ```
extern crate libc; extern crate libc;
extern crate tiny_keccak;
use std::ops::{Deref, DerefMut}; use std::ops::{Deref, DerefMut};
use self::ffi::*; use self::ffi::*;
@ -102,6 +104,14 @@ pub trait Env {
out_size: *mut u64, out_size: *mut u64,
code_address: JitI256) -> bool; code_address: JitI256) -> bool;
fn log(&mut self,
beg: *const u8,
size: *const u64,
topic1: *const JitI256,
topic2: *const JitI256,
topic3: *const JitI256,
topic4: *const JitI256);
fn extcode(&self, address: *const JitI256, size: *mut u64) -> *const u8; fn extcode(&self, address: *const JitI256, size: *mut u64) -> *const u8;
} }
@ -145,8 +155,10 @@ impl DerefMut for EnvHandle {
/// ffi functions /// ffi functions
pub mod ffi { pub mod ffi {
use super::*; use std::slice;
use libc; use libc;
use tiny_keccak::Keccak;
use super::*;
/// Jit context struct declaration. /// Jit context struct declaration.
pub enum JitContext {} pub enum JitContext {}
@ -243,8 +255,14 @@ pub mod ffi {
} }
#[no_mangle] #[no_mangle]
pub unsafe extern fn env_sha3(_begin: *const u8, _size: *const u64, _out_hash: *const JitI256) { pub unsafe extern fn env_sha3(begin: *const u8, size: *const u64, out_hash: *mut JitI256) {
unimplemented!() let out_hash = &mut *out_hash;
let input = slice::from_raw_parts(begin, *size as usize);
let outlen = out_hash.words.len() * 8;
let output = slice::from_raw_parts_mut(out_hash.words.as_mut_ptr() as *mut u8, outlen);
let mut sha3 = Keccak::new_sha3_256();
sha3.update(input);
sha3.finalize(output);
} }
#[no_mangle] #[no_mangle]
@ -254,14 +272,15 @@ pub mod ffi {
} }
#[no_mangle] #[no_mangle]
pub unsafe extern fn env_log(_env: *mut EnvHandle, pub unsafe extern fn env_log(env: *mut EnvHandle,
_beg: *const u8, beg: *const u8,
_size: *const u64, size: *const u64,
_topic1: *const JitI256, topic1: *const JitI256,
_topic2: *const JitI256, topic2: *const JitI256,
_topic3: *const JitI256, topic3: *const JitI256,
_topic4: *const JitI256) { topic4: *const JitI256) {
unimplemented!() let env = &mut *env;
env.log(beg, size, topic1, topic2, topic3, topic4);
} }