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danicoin/src/cryptonote_protocol/cryptonote_protocol_handler.inl
moneromooo-monero 5833d66f65
Change logging to easylogging++ 
This replaces the epee and data_loggers logging systems with
a single one, and also adds filename:line and explicit severity
levels. Categories may be defined, and logging severity set
by category (or set of categories). epee style 0-4 log level
maps to a sensible severity configuration. Log files now also
rotate when reaching 100 MB.

To select which logs to output, use the MONERO_LOGS environment
variable, with a comma separated list of categories (globs are
supported), with their requested severity level after a colon.
If a log matches more than one such setting, the last one in
the configuration string applies. A few examples:

This one is (mostly) silent, only outputting fatal errors:

MONERO_LOGS=*:FATAL

This one is very verbose:

MONERO_LOGS=*:TRACE

This one is totally silent (logwise):

MONERO_LOGS=""

This one outputs all errors and warnings, except for the
"verify" category, which prints just fatal errors (the verify
category is used for logs about incoming transactions and
blocks, and it is expected that some/many will fail to verify,
hence we don't want the spam):

MONERO_LOGS=*:WARNING,verify:FATAL

Log levels are, in decreasing order of priority:
FATAL, ERROR, WARNING, INFO, DEBUG, TRACE

Subcategories may be added using prefixes and globs. This
example will output net.p2p logs at the TRACE level, but all
other net* logs only at INFO:

MONERO_LOGS=*:ERROR,net*:INFO,net.p2p:TRACE

Logs which are intended for the user (which Monero was using
a lot through epee, but really isn't a nice way to go things)
should use the "global" category. There are a few helper macros
for using this category, eg: MGINFO("this shows up by default")
or MGINFO_RED("this is red"), to try to keep a similar look
and feel for now.

Existing epee log macros still exist, and map to the new log
levels, but since they're used as a "user facing" UI element
as much as a logging system, they often don't map well to log
severities (ie, a log level 0 log may be an error, or may be
something we want the user to see, such as an important info).
In those cases, I tried to use the new macros. In other cases,
I left the existing macros in. When modifying logs, it is
probably best to switch to the new macros with explicit levels.

The --log-level options and set_log commands now also accept
category settings, in addition to the epee style log levels.
2017-01-16 00:25:46 +00:00

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/// @file
/// @author rfree (current maintainer/user in monero.cc project - most of code is from CryptoNote)
/// @brief This is the orginal cryptonote protocol network-events handler, modified by us
// Copyright (c) 2014-2016, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
// (may contain code and/or modifications by other developers)
// developer rfree: this code is caller of our new network code, and is modded; e.g. for rate limiting
#include <boost/interprocess/detail/atomic.hpp>
#include <list>
#include <unordered_map>
#include "cryptonote_core/cryptonote_format_utils.h"
#include "profile_tools.h"
#include "../../src/p2p/network_throttle-detail.hpp"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net.cn"
namespace cryptonote
{
//-----------------------------------------------------------------------------------------------------------------------
template<class t_core>
t_cryptonote_protocol_handler<t_core>::t_cryptonote_protocol_handler(t_core& rcore, nodetool::i_p2p_endpoint<connection_context>* p_net_layout):m_core(rcore),
m_p2p(p_net_layout),
m_syncronized_connections_count(0),
m_synchronized(false),
m_stopping(false)
{
if(!m_p2p)
m_p2p = &m_p2p_stub;
}
//-----------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::init(const boost::program_options::variables_map& vm)
{
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::deinit()
{
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
void t_cryptonote_protocol_handler<t_core>::set_p2p_endpoint(nodetool::i_p2p_endpoint<connection_context>* p2p)
{
if(p2p)
m_p2p = p2p;
else
m_p2p = &m_p2p_stub;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::on_callback(cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("callback fired");
CHECK_AND_ASSERT_MES_CC( context.m_callback_request_count > 0, false, "false callback fired, but context.m_callback_request_count=" << context.m_callback_request_count);
--context.m_callback_request_count;
if(context.m_state == cryptonote_connection_context::state_synchronizing)
{
NOTIFY_REQUEST_CHAIN::request r = boost::value_initialized<NOTIFY_REQUEST_CHAIN::request>();
m_core.get_short_chain_history(r.block_ids);
LOG_PRINT_CCONTEXT_L2("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::get_stat_info(core_stat_info& stat_inf)
{
return m_core.get_stat_info(stat_inf);
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
void t_cryptonote_protocol_handler<t_core>::log_connections()
{
std::stringstream ss;
ss.precision(1);
double down_sum = 0.0;
double down_curr_sum = 0.0;
double up_sum = 0.0;
double up_curr_sum = 0.0;
ss << std::setw(30) << std::left << "Remote Host"
<< std::setw(20) << "Peer id"
<< std::setw(20) << "Support Flags"
<< std::setw(30) << "Recv/Sent (inactive,sec)"
<< std::setw(25) << "State"
<< std::setw(20) << "Livetime(sec)"
<< std::setw(12) << "Down (kB/s)"
<< std::setw(14) << "Down(now)"
<< std::setw(10) << "Up (kB/s)"
<< std::setw(13) << "Up(now)"
<< ENDL;
uint32_t ip;
m_p2p->for_each_connection([&](const connection_context& cntxt, nodetool::peerid_type peer_id, uint32_t support_flags)
{
bool local_ip = false;
ip = ntohl(cntxt.m_remote_ip);
// TODO: local ip in calss A, B
if (ip > 3232235520 && ip < 3232301055) // 192.168.x.x
local_ip = true;
auto connection_time = time(NULL) - cntxt.m_started;
ss << std::setw(30) << std::left << std::string(cntxt.m_is_income ? " [INC]":"[OUT]") +
epee::string_tools::get_ip_string_from_int32(cntxt.m_remote_ip) + ":" + std::to_string(cntxt.m_remote_port)
<< std::setw(20) << std::hex << peer_id
<< std::setw(20) << std::hex << support_flags
<< std::setw(30) << std::to_string(cntxt.m_recv_cnt)+ "(" + std::to_string(time(NULL) - cntxt.m_last_recv) + ")" + "/" + std::to_string(cntxt.m_send_cnt) + "(" + std::to_string(time(NULL) - cntxt.m_last_send) + ")"
<< std::setw(25) << get_protocol_state_string(cntxt.m_state)
<< std::setw(20) << std::to_string(time(NULL) - cntxt.m_started)
<< std::setw(12) << std::fixed << (connection_time == 0 ? 0.0 : cntxt.m_recv_cnt / connection_time / 1024)
<< std::setw(14) << std::fixed << cntxt.m_current_speed_down / 1024
<< std::setw(10) << std::fixed << (connection_time == 0 ? 0.0 : cntxt.m_send_cnt / connection_time / 1024)
<< std::setw(13) << std::fixed << cntxt.m_current_speed_up / 1024
<< (local_ip ? "[LAN]" : "")
<< std::left << (ip == LOCALHOST_INT ? "[LOCALHOST]" : "") // 127.0.0.1
<< ENDL;
if (connection_time > 1)
{
down_sum += (cntxt.m_recv_cnt / connection_time / 1024);
up_sum += (cntxt.m_send_cnt / connection_time / 1024);
}
down_curr_sum += (cntxt.m_current_speed_down / 1024);
up_curr_sum += (cntxt.m_current_speed_up / 1024);
return true;
});
ss << ENDL
<< std::setw(125) << " "
<< std::setw(12) << down_sum
<< std::setw(14) << down_curr_sum
<< std::setw(10) << up_sum
<< std::setw(13) << up_curr_sum
<< ENDL;
LOG_PRINT_L0("Connections: " << ENDL << ss.str());
}
//------------------------------------------------------------------------------------------------------------------------
// Returns a list of connection_info objects describing each open p2p connection
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
std::list<connection_info> t_cryptonote_protocol_handler<t_core>::get_connections()
{
std::list<connection_info> connections;
m_p2p->for_each_connection([&](const connection_context& cntxt, nodetool::peerid_type peer_id, uint32_t support_flags)
{
connection_info cnx;
auto timestamp = time(NULL);
cnx.incoming = cntxt.m_is_income ? true : false;
cnx.ip = epee::string_tools::get_ip_string_from_int32(cntxt.m_remote_ip);
cnx.port = std::to_string(cntxt.m_remote_port);
std::stringstream peer_id_str;
peer_id_str << std::hex << peer_id;
peer_id_str >> cnx.peer_id;
cnx.support_flags = support_flags;
cnx.recv_count = cntxt.m_recv_cnt;
cnx.recv_idle_time = timestamp - cntxt.m_last_recv;
cnx.send_count = cntxt.m_send_cnt;
cnx.send_idle_time = timestamp;
cnx.state = get_protocol_state_string(cntxt.m_state);
cnx.live_time = timestamp - cntxt.m_started;
uint32_t ip;
ip = ntohl(cntxt.m_remote_ip);
if (ip == LOCALHOST_INT)
{
cnx.localhost = true;
}
else
{
cnx.localhost = false;
}
if (ip > 3232235520 && ip < 3232301055) // 192.168.x.x
{
cnx.local_ip = true;
}
else
{
cnx.local_ip = false;
}
auto connection_time = time(NULL) - cntxt.m_started;
if (connection_time == 0)
{
cnx.avg_download = 0;
cnx.avg_upload = 0;
}
else
{
cnx.avg_download = cntxt.m_recv_cnt / connection_time / 1024;
cnx.avg_upload = cntxt.m_send_cnt / connection_time / 1024;
}
cnx.current_download = cntxt.m_current_speed_down / 1024;
cnx.current_upload = cntxt.m_current_speed_up / 1024;
connections.push_back(cnx);
return true;
});
return connections;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::process_payload_sync_data(const CORE_SYNC_DATA& hshd, cryptonote_connection_context& context, bool is_inital)
{
if(context.m_state == cryptonote_connection_context::state_befor_handshake && !is_inital)
return true;
if(context.m_state == cryptonote_connection_context::state_synchronizing)
return true;
if(m_core.have_block(hshd.top_id))
{
context.m_state = cryptonote_connection_context::state_normal;
if(is_inital)
on_connection_synchronized();
return true;
}
/* As I don't know if accessing hshd from core could be a good practice,
I prefer pushing target height to the core at the same time it is pushed to the user.
Nz. */
m_core.set_target_blockchain_height(static_cast<int64_t>(hshd.current_height));
int64_t diff = static_cast<int64_t>(hshd.current_height) - static_cast<int64_t>(m_core.get_current_blockchain_height());
int64_t max_block_height = max(static_cast<int64_t>(hshd.current_height),static_cast<int64_t>(m_core.get_current_blockchain_height()));
int64_t last_block_v1 = 1009826;
int64_t diff_v2 = max_block_height > last_block_v1 ? min(abs(diff), max_block_height - last_block_v1) : 0;
MCLOG(is_inital ? el::Level::Info : el::Level::Debug, "global", context << "Sync data returned a new top block candidate: " << m_core.get_current_blockchain_height() << " -> " << hshd.current_height
<< " [Your node is " << std::abs(diff) << " blocks (" << ((abs(diff) - diff_v2) / (24 * 60 * 60 / DIFFICULTY_TARGET_V1)) + (diff_v2 / (24 * 60 * 60 / DIFFICULTY_TARGET_V2)) << " days) "
<< (0 <= diff ? std::string("behind") : std::string("ahead"))
<< "] " << ENDL << "SYNCHRONIZATION started");
LOG_PRINT_L1("Remote blockchain height: " << hshd.current_height << ", id: " << hshd.top_id);
context.m_state = cryptonote_connection_context::state_synchronizing;
context.m_remote_blockchain_height = hshd.current_height;
//let the socket to send response to handshake, but request callback, to let send request data after response
LOG_PRINT_CCONTEXT_L2("requesting callback");
++context.m_callback_request_count;
m_p2p->request_callback(context);
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::get_payload_sync_data(CORE_SYNC_DATA& hshd)
{
m_core.get_blockchain_top(hshd.current_height, hshd.top_id);
hshd.current_height +=1;
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::get_payload_sync_data(blobdata& data)
{
CORE_SYNC_DATA hsd = boost::value_initialized<CORE_SYNC_DATA>();
get_payload_sync_data(hsd);
epee::serialization::store_t_to_binary(hsd, data);
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_notify_new_block(int command, NOTIFY_NEW_BLOCK::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_NEW_BLOCK (hop " << arg.hop << ")");
if(context.m_state != cryptonote_connection_context::state_normal)
return 1;
m_core.pause_mine();
std::list<block_complete_entry> blocks;
blocks.push_back(arg.b);
m_core.prepare_handle_incoming_blocks(blocks);
for(auto tx_blob_it = arg.b.txs.begin(); tx_blob_it!=arg.b.txs.end();tx_blob_it++)
{
cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
m_core.handle_incoming_tx(*tx_blob_it, tvc, true, true, false);
if(tvc.m_verifivation_failed)
{
LOG_PRINT_CCONTEXT_L1("Block verification failed: transaction verification failed, dropping connection");
m_p2p->drop_connection(context);
m_core.cleanup_handle_incoming_blocks();
m_core.resume_mine();
return 1;
}
}
block_verification_context bvc = boost::value_initialized<block_verification_context>();
m_core.handle_incoming_block(arg.b.block, bvc); // got block from handle_notify_new_block
m_core.cleanup_handle_incoming_blocks(true);
m_core.resume_mine();
if(bvc.m_verifivation_failed)
{
LOG_PRINT_CCONTEXT_L0("Block verification failed, dropping connection");
m_p2p->drop_connection(context);
return 1;
}
if(bvc.m_added_to_main_chain)
{
++arg.hop;
//TODO: Add here announce protocol usage
relay_block(arg, context);
}else if(bvc.m_marked_as_orphaned)
{
context.m_state = cryptonote_connection_context::state_synchronizing;
NOTIFY_REQUEST_CHAIN::request r = boost::value_initialized<NOTIFY_REQUEST_CHAIN::request>();
m_core.get_short_chain_history(r.block_ids);
LOG_PRINT_CCONTEXT_L2("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
}
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
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)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_NEW_FLUFFY_BLOCK (hop " << arg.hop << ")");
if(context.m_state != cryptonote_connection_context::state_normal)
return 1;
m_core.pause_mine();
block new_block;
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
if(!context.m_requested_objects.empty())
{
// What we asked for != to what we received ..
if(context.m_requested_objects.size() != arg.b.txs.size())
{
LOG_ERROR_CCONTEXT
(
"NOTIFY_NEW_FLUFFY_BLOCK -> request/response mismatch, "
<< "block = " << epee::string_tools::pod_to_hex(get_blob_hash(arg.b.block))
<< ", requested = " << context.m_requested_objects.size()
<< ", received = " << new_block.tx_hashes.size()
<< ", dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
}
std::list<blobdata> have_tx;
// Instead of requesting missing transactions by hash like BTC,
// we do it by index (thanks to a suggestion from moneromooo) because
// we're way cooler .. and also because they're smaller than hashes.
//
// Also, remember to pepper some whitespace changes around to bother
// moneromooo ... only because I <3 him.
std::vector<size_t> need_tx_indices;
transaction tx;
crypto::hash tx_hash;
BOOST_FOREACH(auto& tx_blob, arg.b.txs)
{
if(parse_and_validate_tx_from_blob(tx_blob, tx))
{
try
{
if(!get_transaction_hash(tx, tx_hash))
{
LOG_PRINT_CCONTEXT_L1
(
"NOTIFY_NEW_FLUFFY_BLOCK: get_transaction_hash failed"
<< ", dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
}
catch(...)
{
LOG_PRINT_CCONTEXT_L1
(
"NOTIFY_NEW_FLUFFY_BLOCK: get_transaction_hash failed"
<< ", exception thrown"
<< ", dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
// hijacking m_requested objects in connection context to patch up
// a possible DOS vector pointed out by @monero-moo where peers keep
// sending (0...n-1) transactions.
// If requested objects is not empty, then we must have asked for
// some missing transacionts, make sure that they're all there.
//
// Can I safely re-use this field? I think so, but someone check me!
if(!context.m_requested_objects.empty())
{
auto req_tx_it = context.m_requested_objects.find(tx_hash);
if(req_tx_it == context.m_requested_objects.end())
{
LOG_ERROR_CCONTEXT
(
"Peer sent wrong transaction (NOTIFY_NEW_FLUFFY_BLOCK): "
<< "transaction with id = " << tx_hash << " wasn't requested, "
<< "dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
context.m_requested_objects.erase(req_tx_it);
}
// we might already have the tx that the peer
// sent in our pool, so don't verify again..
if(!m_core.get_pool_transaction(tx_hash, tx))
{
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)
{
LOG_PRINT_CCONTEXT_L1("Block verification failed: transaction verification failed, dropping connection");
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
//
// future todo:
// tx should only not be added to pool if verification failed, but
// maybe in the future could not be added for other reasons
// according to monero-moo so keep track of these separately ..
//
}
}
else
{
LOG_ERROR_CCONTEXT
(
"sent wrong tx: failed to parse and validate transaction: \r\n"
<< epee::string_tools::buff_to_hex_nodelimer(tx_blob)
<< "\r\n dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
}
// The initial size equality check could have been fooled if the sender
// gave us the number of transactions we asked for, but not the right
// ones. This check make sure the transactions we asked for were the
// ones we received.
if(context.m_requested_objects.size())
{
MERROR
(
"NOTIFY_NEW_FLUFFY_BLOCK: peer sent the number of transaction requested"
<< ", but not the actual transactions requested"
<< ", context.m_requested_objects.size() = " << context.m_requested_objects.size()
<< ", dropping connection"
);
m_p2p->drop_connection(context);
m_core.resume_mine();
return 1;
}
size_t tx_idx = 0;
BOOST_FOREACH(auto& tx_hash, new_block.tx_hashes)
{
if(m_core.get_pool_transaction(tx_hash, tx))
{
have_tx.push_back(tx_to_blob(tx));
}
else
{
need_tx_indices.push_back(tx_idx);
}
++tx_idx;
}
if(!need_tx_indices.empty()) // drats, we don't have everything..
{
// request non-mempool txs
NOTIFY_REQUEST_FLUFFY_MISSING_TX::request missing_tx_req;
missing_tx_req.b = arg.b;
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);
m_core.resume_mine();
post_notify<NOTIFY_REQUEST_FLUFFY_MISSING_TX>(missing_tx_req, context);
}
else // whoo-hoo we've got em all ..
{
block_complete_entry b;
b.block = arg.b.block;
b.txs = have_tx;
std::list<block_complete_entry> blocks;
blocks.push_back(b);
m_core.prepare_handle_incoming_blocks(blocks);
block_verification_context bvc = boost::value_initialized<block_verification_context>();
m_core.handle_incoming_block(arg.b.block, bvc); // got block from handle_notify_new_block
m_core.cleanup_handle_incoming_blocks(true);
m_core.resume_mine();
if( bvc.m_verifivation_failed )
{
LOG_PRINT_CCONTEXT_L0("Block verification failed, dropping connection");
m_p2p->drop_connection(context);
return 1;
}
if( bvc.m_added_to_main_chain )
{
++arg.hop;
//TODO: Add here announce protocol usage
NOTIFY_NEW_BLOCK::request reg_arg = AUTO_VAL_INIT(reg_arg);
reg_arg.hop = arg.hop;
reg_arg.current_blockchain_height = arg.current_blockchain_height;
reg_arg.b.block = b.block;
relay_block(reg_arg, context);
}
else if( bvc.m_marked_as_orphaned )
{
context.m_state = cryptonote_connection_context::state_synchronizing;
NOTIFY_REQUEST_CHAIN::request r = boost::value_initialized<NOTIFY_REQUEST_CHAIN::request>();
m_core.get_short_chain_history(r.block_ids);
LOG_PRINT_CCONTEXT_L2("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
}
}
}
else
{
LOG_ERROR_CCONTEXT
(
"sent wrong block: failed to parse and validate block: \r\n"
<< epee::string_tools::buff_to_hex_nodelimer(arg.b.block)
<< "\r\n dropping connection"
);
m_core.resume_mine();
m_p2p->drop_connection(context);
return 1;
}
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
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)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_REQUEST_FLUFFY_MISSING_TX");
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))
{
LOG_ERROR_CCONTEXT
(
"Failed to handle request NOTIFY_REQUEST_FLUFFY_MISSING_TX"
<< ", get_blocks( start_offset = " << (arg.current_blockchain_height - 1) << " ) failed"
<< ", dropping connection"
);
m_p2p->drop_connection(context);
return 1;
}
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.hop = arg.hop;
size_t local_txs_count = local_txs.size();
BOOST_FOREACH(auto& tx_idx, arg.missing_tx_indices)
{
if(tx_idx < local_txs_count)
{
fluffy_response.b.txs.push_back(t_serializable_object_to_blob( *(std::next(local_txs.begin(), tx_idx)) ));
}
else
{
LOG_ERROR_CCONTEXT
(
"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
<< ", dropping connection"
);
m_p2p->drop_connection(context);
return 1;
}
}
LOG_PRINT_CCONTEXT_L2
(
"-->>NOTIFY_RESPONSE_FLUFFY_MISSING_TX: "
<< ", txs.size()=" << fluffy_response.b.txs.size()
<< ", rsp.current_blockchain_height=" << fluffy_response.current_blockchain_height
);
post_notify<NOTIFY_NEW_FLUFFY_BLOCK>(fluffy_response, context);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_notify_new_transactions(int command, NOTIFY_NEW_TRANSACTIONS::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_NEW_TRANSACTIONS");
if(context.m_state != cryptonote_connection_context::state_normal)
return 1;
for(auto tx_blob_it = arg.txs.begin(); tx_blob_it!=arg.txs.end();)
{
cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
m_core.handle_incoming_tx(*tx_blob_it, tvc, false, true, false);
if(tvc.m_verifivation_failed)
{
LOG_PRINT_CCONTEXT_L1("Tx verification failed, dropping connection");
m_p2p->drop_connection(context);
return 1;
}
if(tvc.m_should_be_relayed)
++tx_blob_it;
else
arg.txs.erase(tx_blob_it++);
}
if(arg.txs.size())
{
//TODO: add announce usage here
relay_transactions(arg, context);
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_request_get_objects(int command, NOTIFY_REQUEST_GET_OBJECTS::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_REQUEST_GET_OBJECTS");
NOTIFY_RESPONSE_GET_OBJECTS::request rsp;
if(!m_core.handle_get_objects(arg, rsp, context))
{
LOG_ERROR_CCONTEXT("failed to handle request NOTIFY_REQUEST_GET_OBJECTS, dropping connection");
m_p2p->drop_connection(context);
}
LOG_PRINT_CCONTEXT_L2("-->>NOTIFY_RESPONSE_GET_OBJECTS: blocks.size()=" << rsp.blocks.size() << ", txs.size()=" << rsp.txs.size()
<< ", rsp.m_current_blockchain_height=" << rsp.current_blockchain_height << ", missed_ids.size()=" << rsp.missed_ids.size());
post_notify<NOTIFY_RESPONSE_GET_OBJECTS>(rsp, context);
//handler_response_blocks_now(sizeof(rsp)); // XXX
//handler_response_blocks_now(200);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
double t_cryptonote_protocol_handler<t_core>::get_avg_block_size() {
// return m_core.get_blockchain_storage().get_avg_block_size(count); // this does not count too well the actuall network-size of data we need to download
CRITICAL_REGION_LOCAL(m_buffer_mutex);
double avg = 0;
if (m_avg_buffer.size() == 0) {
_warn("m_avg_buffer.size() == 0");
return 500;
}
const bool dbg_poke_lock = 0; // debug: try to trigger an error by poking around with locks. TODO: configure option
long int dbg_repeat=0;
do {
for (auto element : m_avg_buffer) avg += element;
} while(dbg_poke_lock && (dbg_repeat++)<100000); // in debug/poke mode, repeat this calculation to trigger hidden locking error if there is one
return avg / m_avg_buffer.size();
}
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_response_get_objects(int command, NOTIFY_RESPONSE_GET_OBJECTS::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_RESPONSE_GET_OBJECTS");
// calculate size of request - mainly for logging/debug
size_t size = 0;
for (auto element : arg.txs) size += element.size();
for (auto element : arg.blocks) {
size += element.block.size();
for (auto tx : element.txs)
size += tx.size();
}
for (auto element : arg.missed_ids)
size += sizeof(element.data);
size += sizeof(arg.current_blockchain_height);
{
CRITICAL_REGION_LOCAL(m_buffer_mutex);
m_avg_buffer.push_back(size);
const bool dbg_poke_lock = 0; // debug: try to trigger an error by poking around with locks. TODO: configure option
long int dbg_repeat=0;
do {
m_avg_buffer.push_back(666); // a test value
m_avg_buffer.erase_end(1);
} while(dbg_poke_lock && (dbg_repeat++)<100000); // in debug/poke mode, repeat this calculation to trigger hidden locking error if there is one
}
/*using namespace boost::chrono;
auto point = steady_clock::now();
auto time_from_epoh = point.time_since_epoch();
auto sec = duration_cast< seconds >( time_from_epoh ).count();*/
//epee::net_utils::network_throttle_manager::get_global_throttle_inreq().logger_handle_net("log/dr-monero/net/req-all.data", sec, get_avg_block_size());
if(context.m_last_response_height > arg.current_blockchain_height)
{
LOG_ERROR_CCONTEXT("sent wrong NOTIFY_HAVE_OBJECTS: arg.m_current_blockchain_height=" << arg.current_blockchain_height
<< " < m_last_response_height=" << context.m_last_response_height << ", dropping connection");
m_p2p->drop_connection(context);
return 1;
}
context.m_remote_blockchain_height = arg.current_blockchain_height;
size_t count = 0;
BOOST_FOREACH(const block_complete_entry& block_entry, arg.blocks)
{
if (m_stopping)
{
return 1;
}
++count;
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");
m_p2p->drop_connection(context);
return 1;
}
//to avoid concurrency in core between connections, suspend connections which delivered block later then first one
if(count == 2)
{
if(m_core.have_block(get_block_hash(b)))
{
context.m_state = cryptonote_connection_context::state_idle;
context.m_needed_objects.clear();
context.m_requested_objects.clear();
LOG_PRINT_CCONTEXT_L1("Connection set to idle state.");
return 1;
}
}
auto req_it = context.m_requested_objects.find(get_block_hash(b));
if(req_it == context.m_requested_objects.end())
{
LOG_ERROR_CCONTEXT("sent wrong NOTIFY_RESPONSE_GET_OBJECTS: block with id=" << epee::string_tools::pod_to_hex(get_blob_hash(block_entry.block))
<< " wasn't requested, dropping connection");
m_p2p->drop_connection(context);
return 1;
}
if(b.tx_hashes.size() != block_entry.txs.size())
{
LOG_ERROR_CCONTEXT("sent wrong NOTIFY_RESPONSE_GET_OBJECTS: block with id=" << epee::string_tools::pod_to_hex(get_blob_hash(block_entry.block))
<< ", tx_hashes.size()=" << b.tx_hashes.size() << " mismatch with block_complete_entry.m_txs.size()=" << block_entry.txs.size() << ", dropping connection");
m_p2p->drop_connection(context);
return 1;
}
context.m_requested_objects.erase(req_it);
}
if(context.m_requested_objects.size())
{
MERROR("returned not all requested objects (context.m_requested_objects.size()="
<< context.m_requested_objects.size() << "), dropping connection");
m_p2p->drop_connection(context);
return 1;
}
{
m_core.pause_mine();
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler(
boost::bind(&t_core::resume_mine, &m_core));
MLOG_YELLOW(el::Level::Debug, "Got NEW BLOCKS inside of " << __FUNCTION__ << ": size: " << arg.blocks.size());
if (m_core.get_test_drop_download() && m_core.get_test_drop_download_height()) { // DISCARD BLOCKS for testing
uint64_t previous_height = m_core.get_current_blockchain_height();
m_core.prepare_handle_incoming_blocks(arg.blocks);
BOOST_FOREACH(const block_complete_entry& block_entry, arg.blocks)
{
if (m_stopping)
{
m_core.cleanup_handle_incoming_blocks();
return 1;
}
// process transactions
TIME_MEASURE_START(transactions_process_time);
BOOST_FOREACH(auto& tx_blob, block_entry.txs)
{
tx_verification_context tvc = AUTO_VAL_INIT(tvc);
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 = "
<< epee::string_tools::pod_to_hex(get_blob_hash(tx_blob)) << ", dropping connection");
m_p2p->drop_connection(context);
m_core.cleanup_handle_incoming_blocks();
return 1;
}
}
TIME_MEASURE_FINISH(transactions_process_time);
// process block
TIME_MEASURE_START(block_process_time);
block_verification_context bvc = boost::value_initialized<block_verification_context>();
m_core.handle_incoming_block(block_entry.block, bvc, false); // <--- process block
if(bvc.m_verifivation_failed)
{
LOG_PRINT_CCONTEXT_L1("Block verification failed, dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_ip_fail(context.m_remote_ip);
m_core.cleanup_handle_incoming_blocks();
return 1;
}
if(bvc.m_marked_as_orphaned)
{
LOG_PRINT_CCONTEXT_L1("Block received at sync phase was marked as orphaned, dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_ip_fail(context.m_remote_ip);
m_core.cleanup_handle_incoming_blocks();
return 1;
}
TIME_MEASURE_FINISH(block_process_time);
LOG_PRINT_CCONTEXT_L2("Block process time: " << block_process_time + transactions_process_time << "(" << transactions_process_time << "/" << block_process_time << ")ms");
} // each download block
m_core.cleanup_handle_incoming_blocks();
if (m_core.get_current_blockchain_height() > previous_height)
{
MGINFO_YELLOW("Synced " << m_core.get_current_blockchain_height() << "/" << m_core.get_target_blockchain_height());
}
} // if not DISCARD BLOCK
}
request_missing_objects(context, true);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::on_idle()
{
return m_core.on_idle();
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_request_chain(int command, NOTIFY_REQUEST_CHAIN::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << arg.block_ids.size());
NOTIFY_RESPONSE_CHAIN_ENTRY::request r;
if(!m_core.find_blockchain_supplement(arg.block_ids, r))
{
LOG_ERROR_CCONTEXT("Failed to handle NOTIFY_REQUEST_CHAIN.");
m_p2p->drop_connection(context);
return 1;
}
LOG_PRINT_CCONTEXT_L2("-->>NOTIFY_RESPONSE_CHAIN_ENTRY: m_start_height=" << r.start_height << ", m_total_height=" << r.total_height << ", m_block_ids.size()=" << r.m_block_ids.size());
post_notify<NOTIFY_RESPONSE_CHAIN_ENTRY>(r, context);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::request_missing_objects(cryptonote_connection_context& context, bool check_having_blocks)
{
//if (!m_one_request == false)
//return true;
m_one_request = false;
// save request size to log (dr monero)
/*using namespace boost::chrono;
auto point = steady_clock::now();
auto time_from_epoh = point.time_since_epoch();
auto sec = duration_cast< seconds >( time_from_epoh ).count();*/
if(context.m_needed_objects.size())
{
//we know objects that we need, request this objects
NOTIFY_REQUEST_GET_OBJECTS::request req;
size_t count = 0;
auto it = context.m_needed_objects.begin();
const size_t count_limit = m_core.get_block_sync_size();
MDEBUG("Setting count_limit: " << count_limit);
while(it != context.m_needed_objects.end() && count < count_limit)
{
if( !(check_having_blocks && m_core.have_block(*it)))
{
req.blocks.push_back(*it);
++count;
context.m_requested_objects.insert(*it);
}
context.m_needed_objects.erase(it++);
}
LOG_PRINT_CCONTEXT_L1("-->>NOTIFY_REQUEST_GET_OBJECTS: blocks.size()=" << req.blocks.size() << ", txs.size()=" << req.txs.size()
<< "requested blocks count=" << count << " / " << count_limit);
//epee::net_utils::network_throttle_manager::get_global_throttle_inreq().logger_handle_net("log/dr-monero/net/req-all.data", sec, get_avg_block_size());
post_notify<NOTIFY_REQUEST_GET_OBJECTS>(req, context);
}else if(context.m_last_response_height < context.m_remote_blockchain_height-1)
{//we have to fetch more objects ids, request blockchain entry
NOTIFY_REQUEST_CHAIN::request r = boost::value_initialized<NOTIFY_REQUEST_CHAIN::request>();
m_core.get_short_chain_history(r.block_ids);
handler_request_blocks_history( r.block_ids ); // change the limit(?), sleep(?)
//std::string blob; // for calculate size of request
//epee::serialization::store_t_to_binary(r, blob);
//epee::net_utils::network_throttle_manager::get_global_throttle_inreq().logger_handle_net("log/dr-monero/net/req-all.data", sec, get_avg_block_size());
LOG_PRINT_CCONTEXT_L1("r = " << 200);
LOG_PRINT_CCONTEXT_L1("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
}else
{
CHECK_AND_ASSERT_MES(context.m_last_response_height == context.m_remote_blockchain_height-1
&& !context.m_needed_objects.size()
&& !context.m_requested_objects.size(), false, "request_missing_blocks final condition failed!"
<< "\r\nm_last_response_height=" << context.m_last_response_height
<< "\r\nm_remote_blockchain_height=" << context.m_remote_blockchain_height
<< "\r\nm_needed_objects.size()=" << context.m_needed_objects.size()
<< "\r\nm_requested_objects.size()=" << context.m_requested_objects.size()
<< "\r\non connection [" << epee::net_utils::print_connection_context_short(context)<< "]");
context.m_state = cryptonote_connection_context::state_normal;
MGINFO_GREEN("SYNCHRONIZED OK");
on_connection_synchronized();
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::on_connection_synchronized()
{
bool val_expected = false;
if(m_synchronized.compare_exchange_strong(val_expected, true))
{
MGINFO_GREEN(ENDL << "**********************************************************************" << ENDL
<< "You are now synchronized with the network. You may now start monero-wallet-cli." << ENDL
<< ENDL
<< "Please note, that the blockchain will be saved only after you quit the daemon with \"exit\" command or if you use \"save\" command." << ENDL
<< "Otherwise, you will possibly need to synchronize the blockchain again." << ENDL
<< ENDL
<< "Use \"help\" command to see the list of available commands." << ENDL
<< "**********************************************************************");
m_core.on_synchronized();
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
size_t t_cryptonote_protocol_handler<t_core>::get_synchronizing_connections_count()
{
size_t count = 0;
m_p2p->for_each_connection([&](cryptonote_connection_context& context, nodetool::peerid_type peer_id)->bool{
if(context.m_state == cryptonote_connection_context::state_synchronizing)
++count;
return true;
});
return count;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
int t_cryptonote_protocol_handler<t_core>::handle_response_chain_entry(int command, NOTIFY_RESPONSE_CHAIN_ENTRY::request& arg, cryptonote_connection_context& context)
{
LOG_PRINT_CCONTEXT_L2("NOTIFY_RESPONSE_CHAIN_ENTRY: m_block_ids.size()=" << arg.m_block_ids.size()
<< ", m_start_height=" << arg.start_height << ", m_total_height=" << arg.total_height);
if(!arg.m_block_ids.size())
{
LOG_ERROR_CCONTEXT("sent empty m_block_ids, dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_ip_fail(context.m_remote_ip);
return 1;
}
if(!m_core.have_block(arg.m_block_ids.front()))
{
LOG_ERROR_CCONTEXT("sent m_block_ids starting from unknown id: "
<< epee::string_tools::pod_to_hex(arg.m_block_ids.front()) << " , dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_ip_fail(context.m_remote_ip);
return 1;
}
context.m_remote_blockchain_height = arg.total_height;
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());
m_p2p->drop_connection(context);
}
BOOST_FOREACH(auto& bl_id, arg.m_block_ids)
{
if(!m_core.have_block(bl_id))
context.m_needed_objects.push_back(bl_id);
}
request_missing_objects(context, false);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::relay_block(NOTIFY_NEW_BLOCK::request& arg, cryptonote_connection_context& exclude_context)
{
NOTIFY_NEW_FLUFFY_BLOCK::request fluffy_arg = AUTO_VAL_INIT(fluffy_arg);
fluffy_arg.hop = arg.hop;
fluffy_arg.current_blockchain_height = arg.current_blockchain_height;
std::list<blobdata> fluffy_txs;
fluffy_arg.b = arg.b;
fluffy_arg.b.txs = fluffy_txs;
// pre-serialize them
std::string fullBlob, fluffyBlob;
epee::serialization::store_t_to_binary(arg, fullBlob);
epee::serialization::store_t_to_binary(fluffy_arg, fluffyBlob);
// sort peers between fluffy ones and others
std::list<boost::uuids::uuid> fullConnections, fluffyConnections;
m_p2p->for_each_connection([this, &arg, &fluffy_arg, &exclude_context, &fullConnections, &fluffyConnections](connection_context& context, nodetool::peerid_type peer_id, uint32_t support_flags)
{
if (peer_id && exclude_context.m_connection_id != context.m_connection_id)
{
if(m_core.get_testnet() && (support_flags & P2P_SUPPORT_FLAG_FLUFFY_BLOCKS))
{
MDEBUG("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");
fullConnections.push_back(context.m_connection_id);
}
}
return true;
});
// send fluffy ones first, we want to encourage people to run that
m_p2p->relay_notify_to_list(NOTIFY_NEW_FLUFFY_BLOCK::ID, fluffyBlob, fluffyConnections);
m_p2p->relay_notify_to_list(NOTIFY_NEW_BLOCK::ID, fullBlob, fullConnections);
return 1;
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
bool t_cryptonote_protocol_handler<t_core>::relay_transactions(NOTIFY_NEW_TRANSACTIONS::request& arg, cryptonote_connection_context& exclude_context)
{
// no check for success, so tell core they're relayed unconditionally
for(auto tx_blob_it = arg.txs.begin(); tx_blob_it!=arg.txs.end(); ++tx_blob_it)
m_core.on_transaction_relayed(*tx_blob_it);
return relay_post_notify<NOTIFY_NEW_TRANSACTIONS>(arg, exclude_context);
}
//------------------------------------------------------------------------------------------------------------------------
template<class t_core>
void t_cryptonote_protocol_handler<t_core>::stop()
{
m_stopping = true;
m_core.stop();
}
} // namespace
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