diff options
Diffstat (limited to 'src/index/blockfilterindex.cpp')
-rw-r--r-- | src/index/blockfilterindex.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/index/blockfilterindex.cpp b/src/index/blockfilterindex.cpp index c92b8c7e19..e7fad8eb64 100644 --- a/src/index/blockfilterindex.cpp +++ b/src/index/blockfilterindex.cpp @@ -5,6 +5,7 @@ #include <map> #include <dbwrapper.h> +#include <hash.h> #include <index/blockfilterindex.h> #include <node/blockstorage.h> #include <util/system.h> @@ -143,18 +144,22 @@ bool BlockFilterIndex::CommitInternal(CDBBatch& batch) return BaseIndex::CommitInternal(batch); } -bool BlockFilterIndex::ReadFilterFromDisk(const FlatFilePos& pos, BlockFilter& filter) const +bool BlockFilterIndex::ReadFilterFromDisk(const FlatFilePos& pos, const uint256& hash, BlockFilter& filter) const { CAutoFile filein(m_filter_fileseq->Open(pos, true), SER_DISK, CLIENT_VERSION); if (filein.IsNull()) { return false; } + // Check that the hash of the encoded_filter matches the one stored in the db. uint256 block_hash; std::vector<uint8_t> encoded_filter; try { filein >> block_hash >> encoded_filter; - filter = BlockFilter(GetFilterType(), block_hash, std::move(encoded_filter)); + uint256 result; + CHash256().Write(encoded_filter).Finalize(result); + if (result != hash) return error("Checksum mismatch in filter decode."); + filter = BlockFilter(GetFilterType(), block_hash, std::move(encoded_filter), /*skip_decode_check=*/true); } catch (const std::exception& e) { return error("%s: Failed to deserialize block filter from disk: %s", __func__, e.what()); @@ -381,7 +386,7 @@ bool BlockFilterIndex::LookupFilter(const CBlockIndex* block_index, BlockFilter& return false; } - return ReadFilterFromDisk(entry.pos, filter_out); + return ReadFilterFromDisk(entry.pos, entry.hash, filter_out); } bool BlockFilterIndex::LookupFilterHeader(const CBlockIndex* block_index, uint256& header_out) @@ -425,7 +430,7 @@ bool BlockFilterIndex::LookupFilterRange(int start_height, const CBlockIndex* st filters_out.resize(entries.size()); auto filter_pos_it = filters_out.begin(); for (const auto& entry : entries) { - if (!ReadFilterFromDisk(entry.pos, *filter_pos_it)) { + if (!ReadFilterFromDisk(entry.pos, entry.hash, *filter_pos_it)) { return false; } ++filter_pos_it; |