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Compact proof. (#295)

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* compact, need to be made optional and look into/compress child trie
roots/state.

* proto with child trie support

* Missing set_offchain_storage overload.

* right name

* Ignore offchain indexing in validation function.

* patch trie-db

* decompress from iter

* use compressed proof

* remove wasm blob from proof (no inject plugged yet)

* change lock

* update trie

* change in toml

* Revert "change in toml"

This reverts commit e588583b79e1a64e2a54157b40968aa6b586fbbe.

* use patch to branches

* i

* i:wq

* switch branch

* ii

* ok, needed to patch the runtime by putting substrate patch in polkadot
project.

* test passing with this conf

* actual lazy code fetch

* patch issue

* Code reorg

* restore commented tests.

* update deps.

* remove polka patch

* fixes

* remove patch

* revert cargo.lock

* cargo update -p sp-trie polkadot-service

* fix collator test (using parent state root).

* Update pallets/parachain-system/src/validate_block/implementation.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Remove encode_witness test function.

* Update pallets/parachain-system/src/validate_block/implementation.rs

* Fix compilation

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Bastian Köcher <info@kchr.de>
This commit is contained in:
cheme
2021-06-08 11:51:32 +02:00
committed by GitHub
parent acb2bc4f00
commit e8b4b36446
6 changed files with 274 additions and 249 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cumulus/pallets/parachain-system/src/validate_block/implementation.rs
+11 -5
View File
@@ -65,11 +65,17 @@ pub fn validate_block<B: BlockT, E: ExecuteBlock<B>, PSC: crate::Config>(
"Invalid parent hash",
);
let db = storage_proof.into_memory_db();
let root = parent_head.state_root().clone();
if !HashDB::<HashFor<B>, _>::contains(&db, &root, EMPTY_PREFIX) {
panic!("Witness data does not contain given storage root.");
}
// Uncompress
let mut db = MemoryDB::default();
let root = match sp_trie::decode_compact::<sp_trie::Layout<HashFor<B>>, _, _>(
&mut db,
storage_proof.iter_compact_encoded_nodes(),
Some(parent_head.state_root()),
) {
Ok(root) => root,
Err(_) => panic!("Compact proof decoding failure."),
};
let backend = sp_state_machine::TrieBackend::new(db, root);
let mut overlay = sp_state_machine::OverlayedChanges::default();
let mut cache = Default::default();
cumulus/pallets/parachain-system/src/validate_block/tests.rs
+8 -4
View File
@@ -86,7 +86,7 @@ fn create_test_client() -> (Client, LongestChain) {
struct TestBlockData {
block: Block,
witness: sp_trie::StorageProof,
witness: sp_trie::CompactProof,
validation_data: PersistedValidationData,
}
@@ -114,11 +114,15 @@ fn build_block_with_witness(
let built_block = builder.build().expect("Creates block");
let witness = built_block
.proof
.expect("We enabled proof recording before.")
.into_compact_proof::<<Header as HeaderT>::Hashing>(*parent_head.state_root())
.unwrap();
TestBlockData {
block: built_block.block,
witness: built_block
.proof
.expect("We enabled proof recording before."),
witness,
validation_data,
}
}