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danicoin/src/p2p/net_node.h
rfree2monero ae2a50659f 2014 network limit 1.2 +utils +toc -doc -drmonero 
new update of the pr with network limits

more debug options:
discarding downloaded blocks all or after given height.
trying to trigger the locking errors.

debug levels polished/tuned to sane values.
debug/logging improved.

warning: this pr should be correct code, but it could make
an existing (in master version) locking error appear more often.

it's a race on the list (map) of peers, e.g. between closing/deleting
them versus working on them in net-limit sleep in sending chunk.

the bug is not in this code/this pr, but in the master version.

the locking problem of master will be fixed in other pr.

problem is ub, and in practice is seems to usually cause program abort
(tested on debian stable with updated gcc). see --help for option
to add sleep to trigger the error faster.
2015-02-20 22:28:03 +01:00

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// Copyright (c) 2014-2015, 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
#pragma once
#include <boost/thread.hpp>
#include <boost/bind.hpp>
#include <boost/foreach.hpp>
#include <boost/bimap.hpp>
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/identity.hpp>
#include <boost/multi_index/member.hpp>
#include <boost/multi_index/global_fun.hpp>
#include <boost/program_options/options_description.hpp>
#include <boost/program_options/variables_map.hpp>
#include <boost/serialization/version.hpp>
#include <boost/uuid/uuid.hpp>
#include "cryptonote_config.h"
#include "warnings.h"
#include "net/levin_server_cp2.h"
#include "p2p_protocol_defs.h"
#include "storages/levin_abstract_invoke2.h"
#include "net_peerlist.h"
#include "math_helper.h"
#include "net_node_common.h"
#include "common/command_line.h"
PUSH_WARNINGS
DISABLE_VS_WARNINGS(4355)
namespace nodetool
{
template<class base_type>
struct p2p_connection_context_t: base_type //t_payload_net_handler::connection_context //public net_utils::connection_context_base
{
peerid_type peer_id;
};
template<class t_payload_net_handler>
class node_server: public epee::levin::levin_commands_handler<p2p_connection_context_t<typename t_payload_net_handler::connection_context> >,
public i_p2p_endpoint<typename t_payload_net_handler::connection_context>
{
struct by_conn_id{};
struct by_peer_id{};
struct by_addr{};
typedef p2p_connection_context_t<typename t_payload_net_handler::connection_context> p2p_connection_context;
typedef COMMAND_HANDSHAKE_T<typename t_payload_net_handler::payload_type> COMMAND_HANDSHAKE;
typedef COMMAND_TIMED_SYNC_T<typename t_payload_net_handler::payload_type> COMMAND_TIMED_SYNC;
public:
typedef t_payload_net_handler payload_net_handler;
node_server(t_payload_net_handler& payload_handler, boost::uuids::uuid network_id)
:m_payload_handler(payload_handler),
m_allow_local_ip(false),
m_no_igd(false),
m_hide_my_port(false),
m_network_id(std::move(network_id))
{
m_current_number_of_out_peers = 0;
m_save_graph = false;
}
static void init_options(boost::program_options::options_description& desc);
bool run();
bool init(const boost::program_options::variables_map& vm, bool testnet);
bool deinit();
bool send_stop_signal();
uint32_t get_this_peer_port(){return m_listenning_port;}
t_payload_net_handler& get_payload_object();
template <class Archive, class t_version_type>
void serialize(Archive &a, const t_version_type ver)
{
a & m_peerlist;
a & m_config.m_peer_id;
}
// debug functions
bool log_peerlist();
bool log_connections();
virtual uint64_t get_connections_count();
size_t get_outgoing_connections_count();
peerlist_manager& get_peerlist_manager(){return m_peerlist;}
void delete_connections(size_t count);
private:
const std::vector<std::string> m_seed_nodes_list =
{ "seeds.moneroseeds.se"
, "seeds.moneroseeds.ae.org"
, "seeds.moneroseeds.ch"
, "seeds.moneroseeds.li"
};
bool islimitup=false;
bool islimitdown=false;
typedef COMMAND_REQUEST_STAT_INFO_T<typename t_payload_net_handler::stat_info> COMMAND_REQUEST_STAT_INFO;
CHAIN_LEVIN_INVOKE_MAP2(p2p_connection_context); //move levin_commands_handler interface invoke(...) callbacks into invoke map
CHAIN_LEVIN_NOTIFY_MAP2(p2p_connection_context); //move levin_commands_handler interface notify(...) callbacks into nothing
BEGIN_INVOKE_MAP2(node_server)
HANDLE_INVOKE_T2(COMMAND_HANDSHAKE, &node_server::handle_handshake)
HANDLE_INVOKE_T2(COMMAND_TIMED_SYNC, &node_server::handle_timed_sync)
HANDLE_INVOKE_T2(COMMAND_PING, &node_server::handle_ping)
#ifdef ALLOW_DEBUG_COMMANDS
HANDLE_INVOKE_T2(COMMAND_REQUEST_STAT_INFO, &node_server::handle_get_stat_info)
HANDLE_INVOKE_T2(COMMAND_REQUEST_NETWORK_STATE, &node_server::handle_get_network_state)
HANDLE_INVOKE_T2(COMMAND_REQUEST_PEER_ID, &node_server::handle_get_peer_id)
#endif
CHAIN_INVOKE_MAP_TO_OBJ_FORCE_CONTEXT(m_payload_handler, typename t_payload_net_handler::connection_context&)
END_INVOKE_MAP2()
//----------------- commands handlers ----------------------------------------------
int handle_handshake(int command, typename COMMAND_HANDSHAKE::request& arg, typename COMMAND_HANDSHAKE::response& rsp, p2p_connection_context& context);
int handle_timed_sync(int command, typename COMMAND_TIMED_SYNC::request& arg, typename COMMAND_TIMED_SYNC::response& rsp, p2p_connection_context& context);
int handle_ping(int command, COMMAND_PING::request& arg, COMMAND_PING::response& rsp, p2p_connection_context& context);
#ifdef ALLOW_DEBUG_COMMANDS
int handle_get_stat_info(int command, typename COMMAND_REQUEST_STAT_INFO::request& arg, typename COMMAND_REQUEST_STAT_INFO::response& rsp, p2p_connection_context& context);
int handle_get_network_state(int command, COMMAND_REQUEST_NETWORK_STATE::request& arg, COMMAND_REQUEST_NETWORK_STATE::response& rsp, p2p_connection_context& context);
int handle_get_peer_id(int command, COMMAND_REQUEST_PEER_ID::request& arg, COMMAND_REQUEST_PEER_ID::response& rsp, p2p_connection_context& context);
#endif
bool init_config();
bool make_default_config();
bool store_config();
bool check_trust(const proof_of_trust& tr);
//----------------- levin_commands_handler -------------------------------------------------------------
virtual void on_connection_new(p2p_connection_context& context);
virtual void on_connection_close(p2p_connection_context& context);
virtual void callback(p2p_connection_context& context);
//----------------- i_p2p_endpoint -------------------------------------------------------------
virtual bool relay_notify_to_all(int command, const std::string& data_buff, const epee::net_utils::connection_context_base& context);
virtual bool invoke_command_to_peer(int command, const std::string& req_buff, std::string& resp_buff, const epee::net_utils::connection_context_base& context);
virtual bool invoke_notify_to_peer(int command, const std::string& req_buff, const epee::net_utils::connection_context_base& context);
virtual bool drop_connection(const epee::net_utils::connection_context_base& context);
virtual void request_callback(const epee::net_utils::connection_context_base& context);
virtual void for_each_connection(std::function<bool(typename t_payload_net_handler::connection_context&, peerid_type)> f);
//-----------------------------------------------------------------------------------------------
bool parse_peer_from_string(nodetool::net_address& pe, const std::string& node_addr);
bool handle_command_line(
const boost::program_options::variables_map& vm
, bool testnet
);
bool idle_worker();
bool handle_remote_peerlist(const std::list<peerlist_entry>& peerlist, time_t local_time, const epee::net_utils::connection_context_base& context);
bool get_local_node_data(basic_node_data& node_data);
//bool get_local_handshake_data(handshake_data& hshd);
bool merge_peerlist_with_local(const std::list<peerlist_entry>& bs);
bool fix_time_delta(std::list<peerlist_entry>& local_peerlist, time_t local_time, int64_t& delta);
bool connections_maker();
bool peer_sync_idle_maker();
bool do_handshake_with_peer(peerid_type& pi, p2p_connection_context& context, bool just_take_peerlist = false);
bool do_peer_timed_sync(const epee::net_utils::connection_context_base& context, peerid_type peer_id);
bool make_new_connection_from_peerlist(bool use_white_list);
bool try_to_connect_and_handshake_with_new_peer(const net_address& na, bool just_take_peerlist = false, uint64_t last_seen_stamp = 0, bool white = true);
size_t get_random_index_with_fixed_probability(size_t max_index);
bool is_peer_used(const peerlist_entry& peer);
bool is_addr_connected(const net_address& peer);
template<class t_callback>
bool try_ping(basic_node_data& node_data, p2p_connection_context& context, t_callback cb);
bool make_expected_connections_count(bool white_list, size_t expected_connections);
bool is_priority_node(const net_address& na);
template <class Container>
bool connect_to_peerlist(const Container& peers);
template <class Container>
bool parse_peers_and_add_to_container(const boost::program_options::variables_map& vm, const command_line::arg_descriptor<std::vector<std::string> > & arg, Container& container);
bool set_max_out_peers(const boost::program_options::variables_map& vm, int64_t max);
bool set_tos_flag(const boost::program_options::variables_map& vm, int limit);
bool set_rate_up_limit(const boost::program_options::variables_map& vm, int64_t limit);
bool set_rate_down_limit(const boost::program_options::variables_map& vm, int64_t limit);
bool set_rate_limit(const boost::program_options::variables_map& vm, uint64_t limit);
//debug functions
std::string print_connections_container();
typedef epee::net_utils::boosted_tcp_server<epee::levin::async_protocol_handler<p2p_connection_context> > net_server;
struct config
{
network_config m_net_config;
uint64_t m_peer_id;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(m_net_config)
KV_SERIALIZE(m_peer_id)
END_KV_SERIALIZE_MAP()
};
public:
config m_config; // TODO was private, add getters?
std::atomic<unsigned int> m_current_number_of_out_peers;
void set_save_graph(bool save_graph)
{
m_save_graph = save_graph;
epee::net_utils::connection_basic::set_save_graph(save_graph);
}
private:
std::string m_config_folder;
bool m_have_address;
bool m_first_connection_maker_call;
uint32_t m_listenning_port;
uint32_t m_external_port;
uint32_t m_ip_address;
bool m_allow_local_ip;
bool m_hide_my_port;
bool m_no_igd;
std::atomic<bool> m_save_graph;
//critical_section m_connections_lock;
//connections_indexed_container m_connections;
t_payload_net_handler& m_payload_handler;
peerlist_manager m_peerlist;
epee::math_helper::once_a_time_seconds<P2P_DEFAULT_HANDSHAKE_INTERVAL> m_peer_handshake_idle_maker_interval;
epee::math_helper::once_a_time_seconds<1> m_connections_maker_interval;
epee::math_helper::once_a_time_seconds<60*30, false> m_peerlist_store_interval;
std::string m_bind_ip;
std::string m_port;
#ifdef ALLOW_DEBUG_COMMANDS
uint64_t m_last_stat_request_time;
#endif
std::list<net_address> m_priority_peers;
std::vector<net_address> m_exclusive_peers;
std::vector<net_address> m_seed_nodes;
std::list<nodetool::peerlist_entry> m_command_line_peers;
uint64_t m_peer_livetime;
//keep connections to initiate some interactions
net_server m_net_server;
boost::uuids::uuid m_network_id;
};
}
#include "net_node.inl"
POP_WARNINGS
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