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cryptonote_protocol: misc fluffy block fixes 

- fix wrong block being used when a new block is received between
  a node elaying a fluffy block and sending a new fluffy block
  with txes a peer did not have
- misc a neverending ping pong requesting the same missing txids
  when a new block is received in the meantime, causing the top
  block to not be the one we need
- send the original fluffy block message block height when sending
  a new fluffy block, not the current top height, which might
  have been updated since
- avoid sending back the whole block blob when asking for txes,
  send only the hash instead
- plus misc cleanup and additional debugging logs
This commit is contained in:
moneromooo-monero 2017-02-11 19:38:18 +00:00
parent cb54eeaa31
commit 9faef1f83a
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
4 changed files with 82 additions and 42 deletions
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6
src/cryptonote_protocol/cryptonote_protocol_defs.h
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@ -257,16 +257,16 @@ namespace cryptonote
struct request
{
block_complete_entry b;
crypto::hash block_hash;
uint64_t current_blockchain_height;
std::vector<size_t> missing_tx_indices;
uint32_t hop;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(b)
KV_SERIALIZE_VAL_POD_AS_BLOB(block_hash)
KV_SERIALIZE(current_blockchain_height)
KV_SERIALIZE_CONTAINER_POD_AS_BLOB(missing_tx_indices)
KV_SERIALIZE(hop)
KV_SERIALIZE(current_blockchain_height)
END_KV_SERIALIZE_MAP()
};
};

102
src/cryptonote_protocol/cryptonote_protocol_handler.inl
View File

@ -367,7 +367,7 @@ namespace cryptonote
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_notify_new_fluffy_block(int command, NOTIFY_NEW_FLUFFY_BLOCK::request& arg, cryptonote_connection_context& context)
{
MLOG_P2P_MESSAGE("Received NOTIFY_NEW_FLUFFY_BLOCK (hop " << arg.hop << ", " << arg.b.txs.size() << " txes)");
MLOG_P2P_MESSAGE("Received NOTIFY_NEW_FLUFFY_BLOCK (height " << arg.current_blockchain_height << ", hop " << arg.hop << ", " << arg.b.txs.size() << " txes)");
if(context.m_state != cryptonote_connection_context::state_normal)
return 1;
@ -377,7 +377,7 @@ namespace cryptonote
transaction miner_tx;
if(parse_and_validate_block_from_blob(arg.b.block, new_block))
{
// This is a seccond notification, we must have asked for some missing tx
// This is a second notification, we must have asked for some missing tx
if(!context.m_requested_objects.empty())
{
// What we asked for != to what we received ..
@ -475,6 +475,7 @@ namespace cryptonote
// sent in our pool, so don't verify again..
if(!m_core.get_pool_transaction(tx_hash, tx))
{
MDEBUG("Incoming tx " << tx_hash << " not in pool, adding");
cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
if(!m_core.handle_incoming_tx(tx_blob, tvc, true, true, false) || tvc.m_verifivation_failed)
{
@ -496,9 +497,9 @@ namespace cryptonote
{
LOG_ERROR_CCONTEXT
(
"sent wrong tx: failed to parse and validate transaction: \r\n"
"sent wrong tx: failed to parse and validate transaction: "
<< epee::string_tools::buff_to_hex_nodelimer(tx_blob)
<< "\r\n dropping connection"
<< ", dropping connection"
);
m_p2p->drop_connection(context);
@ -535,8 +536,20 @@ namespace cryptonote
}
else
{
std::vector<crypto::hash> tx_ids;
std::list<transaction> txes;
std::list<crypto::hash> missing;
tx_ids.push_back(tx_hash);
if (m_core.get_transactions(tx_ids, txes, missing) && missing.empty())
{
have_tx.push_back(tx_to_blob(tx));
}
else
{
MDEBUG("Tx " << tx_hash << " not found in pool");
need_tx_indices.push_back(tx_idx);
}
}
++tx_idx;
}
@ -544,8 +557,11 @@ namespace cryptonote
if(!need_tx_indices.empty()) // drats, we don't have everything..
{
// request non-mempool txs
MDEBUG("We are missing " << need_tx_indices.size() << " txes for this fluffy block");
for (auto txidx: need_tx_indices)
MDEBUG(" tx " << new_block.tx_hashes[txidx]);
NOTIFY_REQUEST_FLUFFY_MISSING_TX::request missing_tx_req;
missing_tx_req.b = arg.b;
missing_tx_req.block_hash = get_block_hash(new_block);
missing_tx_req.hop = arg.hop;
missing_tx_req.current_blockchain_height = arg.current_blockchain_height;
missing_tx_req.missing_tx_indices = std::move(need_tx_indices);
@ -555,6 +571,8 @@ namespace cryptonote
}
else // whoo-hoo we've got em all ..
{
MDEBUG("We have all needed txes for this fluffy block");
block_complete_entry b;
b.block = arg.b.block;
b.txs = have_tx;
@ -598,9 +616,9 @@ namespace cryptonote
{
LOG_ERROR_CCONTEXT
(
"sent wrong block: failed to parse and validate block: \r\n"
"sent wrong block: failed to parse and validate block: "
<< epee::string_tools::buff_to_hex_nodelimer(arg.b.block)
<< "\r\n dropping connection"
<< ", dropping connection"
);
m_core.resume_mine();
@ -615,34 +633,29 @@ namespace cryptonote
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_request_fluffy_missing_tx(int command, NOTIFY_REQUEST_FLUFFY_MISSING_TX::request& arg, cryptonote_connection_context& context)
{
MLOG_P2P_MESSAGE("Received NOTIFY_REQUEST_FLUFFY_MISSING_TX (" << arg.missing_tx_indices.size() << " txes)");
MLOG_P2P_MESSAGE("Received NOTIFY_REQUEST_FLUFFY_MISSING_TX (" << arg.missing_tx_indices.size() << " txes), block hash " << arg.block_hash);
std::list<block> local_blocks;
std::list<transaction> local_txs;
if(!m_core.get_blocks(arg.current_blockchain_height - 1, 1, local_blocks, local_txs))
block b;
if (!m_core.get_block_by_hash(arg.block_hash, b))
{
LOG_ERROR_CCONTEXT
(
"Failed to handle request NOTIFY_REQUEST_FLUFFY_MISSING_TX"
<< ", get_blocks( start_offset = " << (arg.current_blockchain_height - 1) << " ) failed"
<< ", dropping connection"
);
LOG_ERROR_CCONTEXT("failed to find block: " << arg.block_hash << ", dropping connection");
m_p2p->drop_connection(context);
return 1;
}
for (auto txidx: arg.missing_tx_indices)
MDEBUG(" tx " << b.tx_hashes[txidx]);
std::vector<crypto::hash> txids;
NOTIFY_NEW_FLUFFY_BLOCK::request fluffy_response;
fluffy_response.b = arg.b;
fluffy_response.current_blockchain_height = m_core.get_current_blockchain_height();
fluffy_response.b.block = t_serializable_object_to_blob(b);
fluffy_response.current_blockchain_height = arg.current_blockchain_height;
fluffy_response.hop = arg.hop;
size_t local_txs_count = local_txs.size();
for(auto& tx_idx: arg.missing_tx_indices)
{
if(tx_idx < local_txs_count)
if(tx_idx < b.tx_hashes.size())
{
fluffy_response.b.txs.push_back(t_serializable_object_to_blob( *(std::next(local_txs.begin(), tx_idx)) ));
txids.push_back(b.tx_hashes[tx_idx]);
}
else
{
@ -650,7 +663,8 @@ namespace cryptonote
(
"Failed to handle request NOTIFY_REQUEST_FLUFFY_MISSING_TX"
<< ", request is asking for a tx whose index is out of bounds "
<< ", tx index = " << tx_idx << ", block_height = " << arg.current_blockchain_height
<< ", tx index = " << tx_idx << ", block tx count " << b.tx_hashes.size()
<< ", block_height = " << arg.current_blockchain_height
<< ", dropping connection"
);
@ -659,6 +673,28 @@ namespace cryptonote
}
}
std::list<cryptonote::transaction> txs;
std::list<crypto::hash> missed;
if (!m_core.get_transactions(txids, txs, missed))
{
LOG_ERROR_CCONTEXT("Failed to handle request NOTIFY_REQUEST_FLUFFY_MISSING_TX, "
<< "failed to get requested transactions");
m_p2p->drop_connection(context);
return 1;
}
if (!missed.empty() || txs.size() != txids.size())
{
LOG_ERROR_CCONTEXT("Failed to handle request NOTIFY_REQUEST_FLUFFY_MISSING_TX, "
<< missed.size() << " requested transactions not found" << ", dropping connection");
m_p2p->drop_connection(context);
return 1;
}
for(auto& tx: txs)
{
fluffy_response.b.txs.push_back(t_serializable_object_to_blob(tx));
}
LOG_PRINT_CCONTEXT_L2
(
"-->>NOTIFY_RESPONSE_FLUFFY_MISSING_TX: "
@ -801,8 +837,8 @@ namespace cryptonote
block b;
if(!parse_and_validate_block_from_blob(block_entry.block, b))
{
LOG_ERROR_CCONTEXT("sent wrong block: failed to parse and validate block: \r\n"
<< epee::string_tools::buff_to_hex_nodelimer(block_entry.block) << "\r\n dropping connection");
LOG_ERROR_CCONTEXT("sent wrong block: failed to parse and validate block: "
<< epee::string_tools::buff_to_hex_nodelimer(block_entry.block) << ", dropping connection");
m_p2p->drop_connection(context);
return 1;
}
@ -875,7 +911,7 @@ namespace cryptonote
m_core.handle_incoming_tx(tx_blob, tvc, true, true, false);
if(tvc.m_verifivation_failed)
{
LOG_ERROR_CCONTEXT("transaction verification failed on NOTIFY_RESPONSE_GET_OBJECTS, \r\ntx_id = "
LOG_ERROR_CCONTEXT("transaction verification failed on NOTIFY_RESPONSE_GET_OBJECTS, tx_id = "
<< epee::string_tools::pod_to_hex(get_blob_hash(tx_blob)) << ", dropping connection");
m_p2p->drop_connection(context);
m_core.cleanup_handle_incoming_blocks();
@ -1071,9 +1107,9 @@ namespace cryptonote
context.m_last_response_height = arg.start_height + arg.m_block_ids.size()-1;
if(context.m_last_response_height > context.m_remote_blockchain_height)
{
LOG_ERROR_CCONTEXT("sent wrong NOTIFY_RESPONSE_CHAIN_ENTRY, with \r\nm_total_height=" << arg.total_height
<< "\r\nm_start_height=" << arg.start_height
<< "\r\nm_block_ids.size()=" << arg.m_block_ids.size());
LOG_ERROR_CCONTEXT("sent wrong NOTIFY_RESPONSE_CHAIN_ENTRY, with m_total_height=" << arg.total_height
<< ", m_start_height=" << arg.start_height
<< ", m_block_ids.size()=" << arg.m_block_ids.size());
m_p2p->drop_connection(context);
}
@ -1110,12 +1146,12 @@ namespace cryptonote
{
if(m_core.get_testnet() && (support_flags & P2P_SUPPORT_FLAG_FLUFFY_BLOCKS))
{
MDEBUG("PEER SUPPORTS FLUFFY BLOCKS - RELAYING THIN/COMPACT WHATEVER BLOCK");
LOG_DEBUG_CC(context, "PEER SUPPORTS FLUFFY BLOCKS - RELAYING THIN/COMPACT WHATEVER BLOCK");
fluffyConnections.push_back(context.m_connection_id);
}
else
{
MDEBUG("PEER DOESN'T SUPPORT FLUFFY BLOCKS - RELAYING FULL BLOCK");
LOG_DEBUG_CC(context, "PEER DOESN'T SUPPORT FLUFFY BLOCKS - RELAYING FULL BLOCK");
fullConnections.push_back(context.m_connection_id);
}
}

2
tests/core_proxy/core_proxy.h
View File

@ -92,5 +92,7 @@ namespace tests
bool get_testnet() const { return false; }
bool get_pool_transaction(const crypto::hash& id, cryptonote::transaction& tx) const { return false; }
bool get_blocks(uint64_t start_offset, size_t count, std::list<cryptonote::block>& blocks, std::list<cryptonote::transaction>& txs) const { return false; }
bool get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<cryptonote::transaction>& txs, std::list<crypto::hash>& missed_txs) const { return false; }
bool get_block_by_hash(const crypto::hash &h, cryptonote::block &blk, bool *orphan = NULL) const { return false; }
};
}

2
tests/unit_tests/ban.cpp
View File

@ -67,6 +67,8 @@ public:
bool get_testnet() const { return false; }
bool get_pool_transaction(const crypto::hash& id, cryptonote::transaction& tx) const { return false; }
bool get_blocks(uint64_t start_offset, size_t count, std::list<cryptonote::block>& blocks, std::list<cryptonote::transaction>& txs) const { return false; }
bool get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<cryptonote::transaction>& txs, std::list<crypto::hash>& missed_txs) const { return false; }
bool get_block_by_hash(const crypto::hash &h, cryptonote::block &blk, bool *orphan = NULL) const { return false; }
};
typedef nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<test_core>> Server;