eip(Osaka): Implement EIP-7594 (#1325)

* Implement EIP-7594

* run latest json fixtures

* update to latest eest

Author: gurukamath

eest_tests/execution-spec-tests

@@ -26,7 +26,7 @@ dependencies = [
     "ethereum-types>=0.2.4,<0.3",
     "ethereum-rlp>=0.1.4,<0.2",
     "cryptography>=45.0.1,<46",
-    "ethereum-execution-spec-tests @ git+https://github.com/ethereum/execution-spec-tests@6cf5107cee0eae1c2d4dd6a5ef5bc729aea6c379",
+    "ethereum-execution-spec-tests @ git+https://github.com/ethereum/execution-spec-tests@0fdd974b0968e443ef5878430ba5194c43149a4b",
     "ethereum-spec-evm-resolver @ git+https://github.com/petertdavies/ethereum-spec-evm-resolver",
 ]
 

pyproject.toml

@@ -97,6 +97,12 @@ class NoBlobDataError(InvalidTransaction):
     """
 
 
+class BlobCountExceededError(InvalidTransaction):
+    """
+    The transaction has more blobs than the limit.
+    """
+
+
 class PriorityFeeGreaterThanMaxFeeError(InvalidTransaction):
     """
     The priority fee is greater than the maximum fee per gas.

src/ethereum/osaka/exceptions.py

@@ -33,6 +33,7 @@
 from .blocks import Block, Header, Log, Receipt, Withdrawal, encode_receipt
 from .bloom import logs_bloom
 from .exceptions import (
+    BlobCountExceededError,
     BlobGasLimitExceededError,
     EmptyAuthorizationListError,
     InsufficientMaxFeePerBlobGasError,
@@ -112,6 +113,7 @@
 MAX_BLOCK_SIZE = 10_485_760
 SAFETY_MARGIN = 2_097_152
 MAX_RLP_BLOCK_SIZE = MAX_BLOCK_SIZE - SAFETY_MARGIN
+BLOB_COUNT_LIMIT = 6
 
 
 @dataclass
@@ -440,6 +442,8 @@ def check_transaction(
         version.
     NoBlobDataError :
         If the transaction is a type 3 but has no blobs.
+    BlobCountExceededError :
+        If the transaction is a type 3 and has nore blobs than the limit.
     TransactionTypeContractCreationError:
         If the transaction type is not allowed to create contracts.
     EmptyAuthorizationListError :
@@ -484,8 +488,13 @@ def check_transaction(
         max_gas_fee = tx.gas * tx.gas_price
 
     if isinstance(tx, BlobTransaction):
-        if len(tx.blob_versioned_hashes) == 0:
+        blob_count = len(tx.blob_versioned_hashes)
+        if blob_count == 0:
             raise NoBlobDataError("no blob data in transaction")
+        if blob_count > BLOB_COUNT_LIMIT:
+            raise BlobCountExceededError(
+                f"Tx has {blob_count} blobs. Max allowed: {BLOB_COUNT_LIMIT}"
+            )
         for blob_versioned_hash in tx.blob_versioned_hashes:
             if blob_versioned_hash[0:1] != VERSIONED_HASH_VERSION_KZG:
                 raise InvalidBlobVersionedHashError(

src/ethereum/osaka/fork.py

@@ -27,7 +27,7 @@ class _FixtureSource(TypedDict):
         "fixture_path": "tests/fixtures/latest_fork_tests",
     },
     "osaka_tests": {
-        "url": "https://github.com/ethereum/execution-spec-tests/releases/download/fusaka-devnet-2%40v1.2.0/fixtures_fusaka-devnet-2.tar.gz",
+        "url": "https://github.com/ethereum/execution-spec-tests/releases/download/fusaka-devnet-3%40v1.0.0/fixtures_fusaka-devnet-3.tar.gz",
         "fixture_path": "tests/fixtures/osaka_tests",
     },
 }