Merge pull request #3368 from autonomys/invalid-fp-test

Fix inconsistency of bundle digest generation and add invalid fraud proof integration test

Author: NingLin-P

crates/sp-domains-fraud-proof/src/host_functions.rs

@@ -20,12 +20,12 @@ use sp_api::ProvideRuntimeApi;
 use sp_blockchain::HeaderBackend;
 use sp_core::traits::{CallContext, CodeExecutor, FetchRuntimeCode, RuntimeCode};
 use sp_core::H256;
-use sp_domains::{BundleProducerElectionApi, DomainsApi};
+use sp_domains::{BundleProducerElectionApi, DomainsApi, ExtrinsicDigest};
 use sp_externalities::Extensions;
 use sp_messenger::MessengerApi;
 use sp_runtime::traits::{Block as BlockT, Hash as HashT, Header as HeaderT, NumberFor};
 use sp_runtime::OpaqueExtrinsic;
-use sp_state_machine::{OverlayedChanges, StateMachine, TrieBackend, TrieBackendBuilder};
+use sp_state_machine::{LayoutV1, OverlayedChanges, StateMachine, TrieBackend, TrieBackendBuilder};
 use sp_trie::{MemoryDB, StorageProof};
 use sp_weights::Weight;
 use std::borrow::Cow;
@@ -179,7 +179,9 @@ where
             .map(|(signer, tx)| {
                 (
                     signer,
-                    <DomainBlock::Header as HeaderT>::Hashing::hash_of(&tx),
+                    ExtrinsicDigest::new::<LayoutV1<<DomainBlock::Header as HeaderT>::Hashing>>(
+                        tx.encode(),
+                    ),
                 )
             })
             .collect();

domains/client/domain-operator/src/domain_block_processor.rs

@@ -877,6 +877,7 @@ where
                         mismatch_type,
                         bundle_index,
                         bad_receipt_hash,
+                        false,
                     )
                     .map_err(|err| {
                         sp_blockchain::Error::Application(Box::from(format!(

domains/client/domain-operator/src/fraud_proof.rs

@@ -518,6 +518,9 @@ where
         mismatch_type: BundleMismatchType,
         bundle_index: u32,
         bad_receipt_hash: Block::Hash,
+        // Whether allow generate invalid proof against valid ER,
+        // only used in test
+        allow_invalid_proof: bool,
     ) -> Result<FraudProofFor<CBlock, Block::Header>, FraudProofError> {
         let consensus_block_hash = local_receipt.consensus_block_hash;
         let consensus_block_number = local_receipt.consensus_block_number;
@@ -641,11 +644,12 @@ where
                     // If the proof is false invalid then validation response should not be Err.
                     // OR
                     // If it is true invalid and expected extrinsic index does not match
-                    if (is_true_invalid == validation_response.is_ok())
-                        || (is_true_invalid
-                            && validation_response
-                                .as_ref()
-                                .is_err_and(|e| e.extrinsic_index != expected_extrinsic_index))
+                    if !allow_invalid_proof
+                        && ((is_true_invalid == validation_response.is_ok())
+                            || (is_true_invalid
+                                && validation_response
+                                    .as_ref()
+                                    .is_err_and(|e| e.extrinsic_index != expected_extrinsic_index)))
                     {
                         return Err(FraudProofError::InvalidIllegalTxFraudProofExtrinsicIndex {
                             index: expected_extrinsic_index as usize,