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wallet2: validate fetched block height and parent hash

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Oscar Mira 2024-05-27 17:17:17 +02:00
parent c634c261c2
commit a026d5ac44
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GPG Key ID: B371B98C5DC32237
1 changed files with 18 additions and 0 deletions
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18
src/wallet/wallet2.cpp
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@ -2891,6 +2891,10 @@ void wallet2::process_new_blockchain_entry(const cryptonote::block& b, const cry
"block transactions=" + std::to_string(bche.txs.size()) + "block transactions=" + std::to_string(bche.txs.size()) +
" not match with daemon response size=" + std::to_string(parsed_block.o_indices.indices.size())); " not match with daemon response size=" + std::to_string(parsed_block.o_indices.indices.size()));
THROW_WALLET_EXCEPTION_IF(height != m_blockchain.size(), error::wallet_internal_error,
"New blockchain entry mismatch: block height " + std::to_string(height) +
" is not the expected next height " + std::to_string(m_blockchain.size()));
//handle transactions from new block //handle transactions from new block
//optimization: seeking only for blocks that are not older then the wallet creation time plus 1 day. 1 day is for possible user incorrect time setup //optimization: seeking only for blocks that are not older then the wallet creation time plus 1 day. 1 day is for possible user incorrect time setup
@ -3124,8 +3128,22 @@ void wallet2::process_parsed_blocks(const uint64_t start_height, const std::vect
num_txes += 1 + parsed_blocks[i].txes.size(); num_txes += 1 + parsed_blocks[i].txes.size();
tx_cache_data.resize(num_txes); tx_cache_data.resize(num_txes);
size_t txidx = 0; size_t txidx = 0;
crypto::hash prev_block_id;
bool has_prev_block = m_blockchain.is_in_bounds(start_height - 1);
if (has_prev_block) {
prev_block_id = m_blockchain[start_height - 1];
}
for (size_t i = 0; i < blocks.size(); ++i) for (size_t i = 0; i < blocks.size(); ++i)
{ {
if (has_prev_block) {
THROW_WALLET_EXCEPTION_IF(prev_block_id != parsed_blocks[i].block.prev_id, error::wallet_internal_error,
"Parent block hash mismatch at height " + std::to_string(start_height + i) +
": expected " + string_tools::pod_to_hex(prev_block_id) +
", but received a new block with prev_id " + string_tools::pod_to_hex(parsed_blocks[i].block.prev_id));
}
prev_block_id = parsed_blocks[i].hash;
has_prev_block = true;
THROW_WALLET_EXCEPTION_IF(parsed_blocks[i].txes.size() != parsed_blocks[i].block.tx_hashes.size(), THROW_WALLET_EXCEPTION_IF(parsed_blocks[i].txes.size() != parsed_blocks[i].block.tx_hashes.size(),
error::wallet_internal_error, "Mismatched parsed_blocks[i].txes.size() and parsed_blocks[i].block.tx_hashes.size()"); error::wallet_internal_error, "Mismatched parsed_blocks[i].txes.size() and parsed_blocks[i].block.tx_hashes.size()");
if (should_skip_block(parsed_blocks[i].block, start_height + i)) if (should_skip_block(parsed_blocks[i].block, start_height + i))