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### Fixes - Updated sputnikvm dependency with bugfix in the `returndatacopy` implementation and a performance improvement in accessing EVM memory. (#826) ### Changes - BREAKING: `engine-standalone-storage` no longer automatically writes to the DB when `consume_message` is called. It is up to downstream users of the library to commit the diff (after doing any validation for correctness). (#825) ### Additions - New crate for the so-called "hashchain" implementation. It will enable verification of Aurora blocks by light clients in the future. (#816) --------- Co-authored-by: Oleksandr Anyshchenko <oleksandr.anyshchenko@aurora.dev>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| 2.10.2 | ||
| 3.0.0 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| [package] | ||
| name = "aurora-engine-hashchain" | ||
| version = "1.0.0" | ||
| authors.workspace = true | ||
| edition.workspace = true | ||
| readme.workspace = true | ||
| homepage.workspace = true | ||
| repository.workspace = true | ||
| license.workspace = true | ||
| publish.workspace = true | ||
| autobenches = false | ||
|
|
||
| [dependencies] | ||
| aurora-engine-types.workspace = true | ||
| aurora-engine-sdk.workspace = true | ||
| fixed-hash.workspace = true | ||
| impl-serde.workspace = true | ||
|
|
||
| [features] | ||
| default = ["std"] | ||
| std = ["aurora-engine-types/std", "aurora-engine-sdk/std", "fixed-hash/std", "impl-serde/std"] | ||
| borsh-compat = ["aurora-engine-types/borsh-compat", "aurora-engine-sdk/borsh-compat"] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| //! Based on Parity Common Eth Bloom implementation | ||
| //! Link: <https://github.com/paritytech/parity-common/blob/master/ethbloom/src/lib.rs> | ||
| //! | ||
| //! Reimplemented here since there is a large mismatch in types and dependencies. | ||
| #![allow(clippy::expl_impl_clone_on_copy)] | ||
|
|
||
| use aurora_engine_sdk::keccak; | ||
| use aurora_engine_types::borsh::{self, BorshDeserialize, BorshSerialize}; | ||
| use aurora_engine_types::parameters::engine::ResultLog; | ||
| use fixed_hash::construct_fixed_hash; | ||
| use impl_serde::impl_fixed_hash_serde; | ||
|
|
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| const BLOOM_SIZE: usize = 256; | ||
| const BLOOM_BITS: u32 = 3; | ||
|
|
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| construct_fixed_hash! { | ||
| /// Bloom hash type with 256 bytes (2048 bits) size. | ||
| #[derive(BorshSerialize, BorshDeserialize)] | ||
| pub struct Bloom(BLOOM_SIZE); | ||
| } | ||
|
|
||
| impl_fixed_hash_serde!(Bloom, BLOOM_SIZE); | ||
|
|
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| /// Returns log2. | ||
| const fn log2(x: usize) -> u32 { | ||
| if x <= 1 { | ||
| return 0; | ||
| } | ||
|
|
||
| let n = x.leading_zeros(); | ||
| usize::BITS - n | ||
| } | ||
|
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| impl Bloom { | ||
| /// Add a new element to the bloom filter | ||
| #[allow(clippy::as_conversions)] | ||
| pub fn accrue(&mut self, input: &[u8]) { | ||
| let m = self.0.len(); | ||
| let bloom_bits = m * 8; | ||
| let mask = bloom_bits - 1; | ||
| let bloom_bytes = (log2(bloom_bits) + 7) / 8; | ||
| let hash = keccak(input); | ||
| let mut ptr = 0; | ||
|
|
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| for _ in 0..BLOOM_BITS { | ||
| let mut index = 0; | ||
| for _ in 0..bloom_bytes { | ||
| index = (index << 8) | hash[ptr] as usize; | ||
| ptr += 1; | ||
| } | ||
| index &= mask; | ||
| self.0[m - 1 - index / 8] |= 1 << (index % 8); | ||
| } | ||
| } | ||
|
|
||
| /// Merge two bloom filters | ||
| pub fn accrue_bloom(&mut self, bloom: &Self) { | ||
| for i in 0..BLOOM_SIZE { | ||
| self.0[i] |= bloom.0[i]; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[must_use] | ||
| pub fn get_logs_bloom(logs: &[ResultLog]) -> Bloom { | ||
| let mut logs_bloom = Bloom::default(); | ||
|
|
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| for log in logs { | ||
| logs_bloom.accrue_bloom(&get_log_bloom(log)); | ||
| } | ||
|
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| logs_bloom | ||
| } | ||
|
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| #[must_use] | ||
| pub fn get_log_bloom(log: &ResultLog) -> Bloom { | ||
| let mut log_bloom = Bloom::default(); | ||
|
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| log_bloom.accrue(log.address.as_bytes()); | ||
| for topic in &log.topics { | ||
| log_bloom.accrue(&topic[..]); | ||
| } | ||
|
|
||
| log_bloom | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| pub const ERR_STATE_NOT_FOUND: &[u8; 19] = b"ERR_STATE_NOT_FOUND"; | ||
| pub const ERR_STATE_SERIALIZATION_FAILED: &[u8; 26] = b"ERR_STATE_SERIALIZE_FAILED"; | ||
| pub const ERR_STATE_CORRUPTED: &[u8; 19] = b"ERR_STATE_CORRUPTED"; | ||
| pub const ERR_BLOCK_HEIGHT_INCORRECT: &[u8; 26] = b"ERR_BLOCK_HEIGHT_INCORRECT"; | ||
| pub const ERR_REQUIRES_FEATURE_INTEGRATION_TEST: &[u8; 37] = | ||
| b"ERR_REQUIRES_FEATURE_INTEGRATION_TEST"; | ||
|
|
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| #[derive(Debug)] | ||
| /// Blockchain Hashchain Error | ||
| pub enum BlockchainHashchainError { | ||
| /// The state is missing from storage, need to initialize with contract `new` method. | ||
| NotFound, | ||
| /// The state serialized had failed. | ||
| SerializationFailed, | ||
| /// The state is corrupted, possibly due to failed state migration. | ||
| DeserializationFailed, | ||
| /// The block height is incorrect regarding the current block height. | ||
| BlockHeightIncorrect, | ||
| /// Some functionality requires integration-test feature. | ||
| RequiresFeatureIntegrationTest, | ||
| } | ||
|
|
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| impl AsRef<[u8]> for BlockchainHashchainError { | ||
| fn as_ref(&self) -> &[u8] { | ||
| match self { | ||
| Self::NotFound => ERR_STATE_NOT_FOUND, | ||
| Self::SerializationFailed => ERR_STATE_SERIALIZATION_FAILED, | ||
| Self::DeserializationFailed => ERR_STATE_CORRUPTED, | ||
| Self::BlockHeightIncorrect => ERR_BLOCK_HEIGHT_INCORRECT, | ||
| Self::RequiresFeatureIntegrationTest => ERR_REQUIRES_FEATURE_INTEGRATION_TEST, | ||
| } | ||
| } | ||
| } |
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