mirror of
https://git.wownero.com/wownero/wownero.git
synced 2024-12-23 14:28:51 +00:00
057c279cb4
RPC connections now have optional tranparent SSL.
An optional private key and certificate file can be passed,
using the --{rpc,daemon}-ssl-private-key and
--{rpc,daemon}-ssl-certificate options. Those have as
argument a path to a PEM format private private key and
certificate, respectively.
If not given, a temporary self signed certificate will be used.
SSL can be enabled or disabled using --{rpc}-ssl, which
accepts autodetect (default), disabled or enabled.
Access can be restricted to particular certificates using the
--rpc-ssl-allowed-certificates, which takes a list of
paths to PEM encoded certificates. This can allow a wallet to
connect to only the daemon they think they're connected to,
by forcing SSL and listing the paths to the known good
certificates.
To generate long term certificates:
openssl genrsa -out /tmp/KEY 4096
openssl req -new -key /tmp/KEY -out /tmp/REQ
openssl x509 -req -days 999999 -sha256 -in /tmp/REQ -signkey /tmp/KEY -out /tmp/CERT
/tmp/KEY is the private key, and /tmp/CERT is the certificate,
both in PEM format. /tmp/REQ can be removed. Adjust the last
command to set expiration date, etc, as needed. It doesn't
make a whole lot of sense for monero anyway, since most servers
will run with one time temporary self signed certificates anyway.
SSL support is transparent, so all communication is done on the
existing ports, with SSL autodetection. This means you can start
using an SSL daemon now, but you should not enforce SSL yet or
nothing will talk to you.
1487 lines
61 KiB
C++
1487 lines
61 KiB
C++
/**
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@file
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@author from CrypoNote (see copyright below; Andrey N. Sabelnikov)
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@monero rfree
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@brief the connection templated-class for one peer connection
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*/
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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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#include <boost/bind.hpp>
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#include <boost/foreach.hpp>
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#include <boost/uuid/random_generator.hpp>
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#include <boost/chrono.hpp>
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#include <boost/utility/value_init.hpp>
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#include <boost/asio/deadline_timer.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp> // TODO
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#include <boost/thread/condition_variable.hpp> // TODO
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#include <boost/make_shared.hpp>
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#include "warnings.h"
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#include "string_tools.h"
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#include "misc_language.h"
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#include "net/local_ip.h"
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#include "pragma_comp_defs.h"
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#include <sstream>
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#include <iomanip>
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#include <algorithm>
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "net"
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#define DEFAULT_TIMEOUT_MS_LOCAL 1800000 // 30 minutes
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#define DEFAULT_TIMEOUT_MS_REMOTE 300000 // 5 minutes
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#define TIMEOUT_EXTRA_MS_PER_BYTE 0.2
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PRAGMA_WARNING_PUSH
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namespace epee
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{
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namespace net_utils
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{
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template<typename T>
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T& check_and_get(boost::shared_ptr<T>& ptr)
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{
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CHECK_AND_ASSERT_THROW_MES(bool(ptr), "shared_state cannot be null");
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return *ptr;
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}
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/************************************************************************/
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/* */
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/************************************************************************/
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PRAGMA_WARNING_DISABLE_VS(4355)
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template<class t_protocol_handler>
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connection<t_protocol_handler>::connection( boost::asio::io_service& io_service,
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boost::shared_ptr<shared_state> state,
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t_connection_type connection_type,
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epee::net_utils::ssl_support_t ssl_support,
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ssl_context_t &ssl_context
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)
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: connection(boost::asio::ip::tcp::socket{io_service}, std::move(state), connection_type, ssl_support, ssl_context)
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{
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}
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template<class t_protocol_handler>
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connection<t_protocol_handler>::connection( boost::asio::ip::tcp::socket&& sock,
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boost::shared_ptr<shared_state> state,
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t_connection_type connection_type,
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epee::net_utils::ssl_support_t ssl_support,
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ssl_context_t &ssl_context
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)
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:
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connection_basic(std::move(sock), state, ssl_support, ssl_context),
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m_protocol_handler(this, check_and_get(state).config, context),
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m_connection_type( connection_type ),
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m_throttle_speed_in("speed_in", "throttle_speed_in"),
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m_throttle_speed_out("speed_out", "throttle_speed_out"),
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m_timer(socket_.get_io_service()),
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m_local(false),
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m_ready_to_close(false)
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{
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MDEBUG("test, connection constructor set m_connection_type="<<m_connection_type);
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}
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PRAGMA_WARNING_DISABLE_VS(4355)
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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connection<t_protocol_handler>::~connection() noexcept(false)
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{
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if(!m_was_shutdown)
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{
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_dbg3("[sock " << socket().native_handle() << "] Socket destroyed without shutdown.");
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shutdown();
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}
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_dbg3("[sock " << socket().native_handle() << "] Socket destroyed");
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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boost::shared_ptr<connection<t_protocol_handler> > connection<t_protocol_handler>::safe_shared_from_this()
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{
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try
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{
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return connection<t_protocol_handler>::shared_from_this();
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}
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catch (const boost::bad_weak_ptr&)
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{
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// It happens when the connection is being deleted
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return boost::shared_ptr<connection<t_protocol_handler> >();
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}
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::start(bool is_income, bool is_multithreaded)
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{
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TRY_ENTRY();
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boost::system::error_code ec;
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auto remote_ep = socket().remote_endpoint(ec);
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CHECK_AND_NO_ASSERT_MES(!ec, false, "Failed to get remote endpoint: " << ec.message() << ':' << ec.value());
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CHECK_AND_NO_ASSERT_MES(remote_ep.address().is_v4(), false, "IPv6 not supported here");
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const unsigned long ip_{boost::asio::detail::socket_ops::host_to_network_long(remote_ep.address().to_v4().to_ulong())};
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return start(is_income, is_multithreaded, ipv4_network_address{uint32_t(ip_), remote_ep.port()});
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CATCH_ENTRY_L0("connection<t_protocol_handler>::start()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::start(bool is_income, bool is_multithreaded, network_address real_remote)
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{
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TRY_ENTRY();
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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m_is_multithreaded = is_multithreaded;
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m_local = real_remote.is_loopback() || real_remote.is_local();
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// create a random uuid, we don't need crypto strength here
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const boost::uuids::uuid random_uuid = boost::uuids::random_generator()();
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context = t_connection_context{};
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bool ssl = m_ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_enabled;
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context.set_details(random_uuid, std::move(real_remote), is_income, ssl);
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boost::system::error_code ec;
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auto local_ep = socket().local_endpoint(ec);
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CHECK_AND_NO_ASSERT_MES(!ec, false, "Failed to get local endpoint: " << ec.message() << ':' << ec.value());
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_dbg3("[sock " << socket_.native_handle() << "] new connection from " << print_connection_context_short(context) <<
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" to " << local_ep.address().to_string() << ':' << local_ep.port() <<
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", total sockets objects " << get_stats().sock_count);
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if(static_cast<shared_state&>(get_stats()).pfilter && !static_cast<shared_state&>(get_stats()).pfilter->is_remote_host_allowed(context.m_remote_address))
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{
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_dbg2("[sock " << socket().native_handle() << "] host denied " << context.m_remote_address.host_str() << ", shutdowning connection");
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close();
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return false;
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}
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m_host = context.m_remote_address.host_str();
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try { host_count(m_host, 1); } catch(...) { /* ignore */ }
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m_protocol_handler.after_init_connection();
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reset_timer(get_default_timeout(), false);
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// first read on the raw socket to detect SSL for the server
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buffer_ssl_init_fill = 0;
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if (is_income && m_ssl_support != epee::net_utils::ssl_support_t::e_ssl_support_disabled)
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socket().async_receive(boost::asio::buffer(buffer_),
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boost::asio::socket_base::message_peek,
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strand_.wrap(
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boost::bind(&connection<t_protocol_handler>::handle_receive, self,
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred)));
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else
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async_read_some(boost::asio::buffer(buffer_),
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strand_.wrap(
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boost::bind(&connection<t_protocol_handler>::handle_read, self,
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boost::asio::placeholders::error,
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boost::asio::placeholders::bytes_transferred)));
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#if !defined(_WIN32) || !defined(__i686)
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// not supported before Windows7, too lazy for runtime check
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// Just exclude for 32bit windows builds
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//set ToS flag
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int tos = get_tos_flag();
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boost::asio::detail::socket_option::integer< IPPROTO_IP, IP_TOS >
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optionTos( tos );
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socket().set_option( optionTos );
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//_dbg1("Set ToS flag to " << tos);
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#endif
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boost::asio::ip::tcp::no_delay noDelayOption(false);
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socket().set_option(noDelayOption);
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::start()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::request_callback()
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{
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TRY_ENTRY();
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_dbg2("[" << print_connection_context_short(context) << "] request_callback");
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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strand_.post(boost::bind(&connection<t_protocol_handler>::call_back_starter, self));
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CATCH_ENTRY_L0("connection<t_protocol_handler>::request_callback()", false);
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return true;
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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boost::asio::io_service& connection<t_protocol_handler>::get_io_service()
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{
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return socket().get_io_service();
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::add_ref()
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{
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TRY_ENTRY();
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// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
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auto self = safe_shared_from_this();
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if(!self)
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return false;
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//_dbg3("[sock " << socket().native_handle() << "] add_ref, m_peer_number=" << mI->m_peer_number);
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CRITICAL_REGION_LOCAL(self->m_self_refs_lock);
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//_dbg3("[sock " << socket().native_handle() << "] add_ref 2, m_peer_number=" << mI->m_peer_number);
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if(m_was_shutdown)
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return false;
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++m_reference_count;
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m_self_ref = std::move(self);
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::add_ref()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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bool connection<t_protocol_handler>::release()
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{
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TRY_ENTRY();
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boost::shared_ptr<connection<t_protocol_handler> > back_connection_copy;
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LOG_TRACE_CC(context, "[sock " << socket().native_handle() << "] release");
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CRITICAL_REGION_BEGIN(m_self_refs_lock);
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CHECK_AND_ASSERT_MES(m_reference_count, false, "[sock " << socket().native_handle() << "] m_reference_count already at 0 at connection<t_protocol_handler>::release() call");
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// is this the last reference?
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if (--m_reference_count == 0) {
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// move the held reference to a local variable, keeping the object alive until the function terminates
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std::swap(back_connection_copy, m_self_ref);
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}
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CRITICAL_REGION_END();
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return true;
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CATCH_ENTRY_L0("connection<t_protocol_handler>::release()", false);
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::call_back_starter()
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{
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TRY_ENTRY();
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_dbg2("[" << print_connection_context_short(context) << "] fired_callback");
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m_protocol_handler.handle_qued_callback();
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CATCH_ENTRY_L0("connection<t_protocol_handler>::call_back_starter()", void());
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::save_dbg_log()
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{
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std::string address, port;
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boost::system::error_code e;
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boost::asio::ip::tcp::endpoint endpoint = socket().remote_endpoint(e);
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if (e)
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{
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address = "<not connected>";
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port = "<not connected>";
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}
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else
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{
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address = endpoint.address().to_string();
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port = boost::lexical_cast<std::string>(endpoint.port());
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}
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MDEBUG(" connection type " << to_string( m_connection_type ) << " "
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<< socket().local_endpoint().address().to_string() << ":" << socket().local_endpoint().port()
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<< " <--> " << context.m_remote_address.str() << " (via " << address << ":" << port << ")");
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}
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//---------------------------------------------------------------------------------
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template<class t_protocol_handler>
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void connection<t_protocol_handler>::handle_read(const boost::system::error_code& e,
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std::size_t bytes_transferred)
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{
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TRY_ENTRY();
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//_info("[sock " << socket().native_handle() << "] Async read calledback.");
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if (!e)
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{
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{
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CRITICAL_REGION_LOCAL(m_throttle_speed_in_mutex);
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m_throttle_speed_in.handle_trafic_exact(bytes_transferred);
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context.m_current_speed_down = m_throttle_speed_in.get_current_speed();
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context.m_max_speed_down = std::max(context.m_max_speed_down, context.m_current_speed_down);
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}
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{
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CRITICAL_REGION_LOCAL( epee::net_utils::network_throttle_manager::network_throttle_manager::m_lock_get_global_throttle_in );
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epee::net_utils::network_throttle_manager::network_throttle_manager::get_global_throttle_in().handle_trafic_exact(bytes_transferred);
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}
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double delay=0; // will be calculated - how much we should sleep to obey speed limit etc
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if (speed_limit_is_enabled()) {
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do // keep sleeping if we should sleep
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{
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{ //_scope_dbg1("CRITICAL_REGION_LOCAL");
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CRITICAL_REGION_LOCAL( epee::net_utils::network_throttle_manager::m_lock_get_global_throttle_in );
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delay = epee::net_utils::network_throttle_manager::get_global_throttle_in().get_sleep_time_after_tick( bytes_transferred );
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}
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delay *= 0.5;
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if (delay > 0) {
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long int ms = (long int)(delay * 100);
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reset_timer(boost::posix_time::milliseconds(ms + 1), true);
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boost::this_thread::sleep_for(boost::chrono::milliseconds(ms));
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}
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} while(delay > 0);
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} // any form of sleeping
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//_info("[sock " << socket().native_handle() << "] RECV " << bytes_transferred);
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logger_handle_net_read(bytes_transferred);
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context.m_last_recv = time(NULL);
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context.m_recv_cnt += bytes_transferred;
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m_ready_to_close = false;
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bool recv_res = m_protocol_handler.handle_recv(buffer_.data(), bytes_transferred);
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if(!recv_res)
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{
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//_info("[sock " << socket().native_handle() << "] protocol_want_close");
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|
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//some error in protocol, protocol handler ask to close connection
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boost::interprocess::ipcdetail::atomic_write32(&m_want_close_connection, 1);
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bool do_shutdown = false;
|
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CRITICAL_REGION_BEGIN(m_send_que_lock);
|
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if(!m_send_que.size())
|
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do_shutdown = true;
|
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CRITICAL_REGION_END();
|
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if(do_shutdown)
|
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shutdown();
|
|
}else
|
|
{
|
|
reset_timer(get_timeout_from_bytes_read(bytes_transferred), false);
|
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async_read_some(boost::asio::buffer(buffer_),
|
|
strand_.wrap(
|
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boost::bind(&connection<t_protocol_handler>::handle_read, connection<t_protocol_handler>::shared_from_this(),
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|
boost::asio::placeholders::error,
|
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boost::asio::placeholders::bytes_transferred)));
|
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//_info("[sock " << socket().native_handle() << "]Async read requested.");
|
|
}
|
|
}else
|
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{
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_dbg3("[sock " << socket().native_handle() << "] Some not success at read: " << e.message() << ':' << e.value());
|
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if(e.value() != 2)
|
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{
|
|
_dbg3("[sock " << socket().native_handle() << "] Some problems at read: " << e.message() << ':' << e.value());
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shutdown();
|
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}
|
|
else
|
|
{
|
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_dbg3("[sock " << socket().native_handle() << "] peer closed connection");
|
|
if (m_ready_to_close)
|
|
shutdown();
|
|
}
|
|
m_ready_to_close = true;
|
|
}
|
|
// If an error occurs then no new asynchronous operations are started. This
|
|
// means that all shared_ptr references to the connection object will
|
|
// disappear and the object will be destroyed automatically after this
|
|
// handler returns. The connection class's destructor closes the socket.
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::handle_read", void());
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|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::handle_receive(const boost::system::error_code& e,
|
|
std::size_t bytes_transferred)
|
|
{
|
|
TRY_ENTRY();
|
|
if (e)
|
|
{
|
|
// offload the error case
|
|
handle_read(e, bytes_transferred);
|
|
return;
|
|
}
|
|
|
|
reset_timer(get_timeout_from_bytes_read(bytes_transferred), false);
|
|
|
|
buffer_ssl_init_fill += bytes_transferred;
|
|
if (buffer_ssl_init_fill <= get_ssl_magic_size())
|
|
{
|
|
socket().async_receive(boost::asio::buffer(buffer_.data() + buffer_ssl_init_fill, buffer_.size() - buffer_ssl_init_fill),
|
|
boost::asio::socket_base::message_peek,
|
|
strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_receive, connection<t_protocol_handler>::shared_from_this(),
|
|
boost::asio::placeholders::error,
|
|
boost::asio::placeholders::bytes_transferred)));
|
|
return;
|
|
}
|
|
|
|
// detect SSL
|
|
if (m_ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_autodetect)
|
|
{
|
|
if (is_ssl((const unsigned char*)buffer_.data(), buffer_ssl_init_fill))
|
|
{
|
|
MDEBUG("That looks like SSL");
|
|
m_ssl_support = epee::net_utils::ssl_support_t::e_ssl_support_enabled; // read/write to the SSL socket
|
|
}
|
|
else
|
|
{
|
|
MDEBUG("That does not look like SSL");
|
|
m_ssl_support = epee::net_utils::ssl_support_t::e_ssl_support_disabled; // read/write to the raw socket
|
|
}
|
|
}
|
|
|
|
if (m_ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_enabled)
|
|
{
|
|
// Handshake
|
|
if (!handshake(boost::asio::ssl::stream_base::server))
|
|
{
|
|
MERROR("SSL handshake failed");
|
|
boost::interprocess::ipcdetail::atomic_write32(&m_want_close_connection, 1);
|
|
bool do_shutdown = false;
|
|
CRITICAL_REGION_BEGIN(m_send_que_lock);
|
|
if(!m_send_que.size())
|
|
do_shutdown = true;
|
|
CRITICAL_REGION_END();
|
|
if(do_shutdown)
|
|
shutdown();
|
|
return;
|
|
}
|
|
}
|
|
|
|
async_read_some(boost::asio::buffer(buffer_),
|
|
strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_read, connection<t_protocol_handler>::shared_from_this(),
|
|
boost::asio::placeholders::error,
|
|
boost::asio::placeholders::bytes_transferred)));
|
|
|
|
// If an error occurs then no new asynchronous operations are started. This
|
|
// means that all shared_ptr references to the connection object will
|
|
// disappear and the object will be destroyed automatically after this
|
|
// handler returns. The connection class's destructor closes the socket.
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::handle_receive", void());
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::call_run_once_service_io()
|
|
{
|
|
TRY_ENTRY();
|
|
if(!m_is_multithreaded)
|
|
{
|
|
//single thread model, we can wait in blocked call
|
|
size_t cnt = socket().get_io_service().run_one();
|
|
if(!cnt)//service is going to quit
|
|
return false;
|
|
}else
|
|
{
|
|
//multi thread model, we can't(!) wait in blocked call
|
|
//so we make non blocking call and releasing CPU by calling sleep(0);
|
|
//if no handlers were called
|
|
//TODO: Maybe we need to have have critical section + event + callback to upper protocol to
|
|
//ask it inside(!) critical region if we still able to go in event wait...
|
|
size_t cnt = socket().get_io_service().poll_one();
|
|
if(!cnt)
|
|
misc_utils::sleep_no_w(1);
|
|
}
|
|
|
|
return true;
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::call_run_once_service_io", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::do_send(const void* ptr, size_t cb) {
|
|
TRY_ENTRY();
|
|
|
|
// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
|
|
auto self = safe_shared_from_this();
|
|
if (!self) return false;
|
|
if (m_was_shutdown) return false;
|
|
// TODO avoid copy
|
|
|
|
const double factor = 32; // TODO config
|
|
typedef long long signed int t_safe; // my t_size to avoid any overunderflow in arithmetic
|
|
const t_safe chunksize_good = (t_safe)( 1024 * std::max(1.0,factor) );
|
|
const t_safe chunksize_max = chunksize_good * 2 ;
|
|
const bool allow_split = (m_connection_type == e_connection_type_RPC) ? false : true; // do not split RPC data
|
|
|
|
CHECK_AND_ASSERT_MES(! (chunksize_max<0), false, "Negative chunksize_max" ); // make sure it is unsigned before removin sign with cast:
|
|
long long unsigned int chunksize_max_unsigned = static_cast<long long unsigned int>( chunksize_max ) ;
|
|
|
|
if (allow_split && (cb > chunksize_max_unsigned)) {
|
|
{ // LOCK: chunking
|
|
epee::critical_region_t<decltype(m_chunking_lock)> send_guard(m_chunking_lock); // *** critical ***
|
|
|
|
MDEBUG("do_send() will SPLIT into small chunks, from packet="<<cb<<" B for ptr="<<ptr);
|
|
t_safe all = cb; // all bytes to send
|
|
t_safe pos = 0; // current sending position
|
|
// 01234567890
|
|
// ^^^^ (pos=0, len=4) ; pos:=pos+len, pos=4
|
|
// ^^^^ (pos=4, len=4) ; pos:=pos+len, pos=8
|
|
// ^^^ (pos=8, len=4) ;
|
|
|
|
// const size_t bufsize = chunksize_good; // TODO safecast
|
|
// char* buf = new char[ bufsize ];
|
|
|
|
bool all_ok = true;
|
|
while (pos < all) {
|
|
t_safe lenall = all-pos; // length from here to end
|
|
t_safe len = std::min( chunksize_good , lenall); // take a smaller part
|
|
CHECK_AND_ASSERT_MES(len<=chunksize_good, false, "len too large");
|
|
// pos=8; len=4; all=10; len=3;
|
|
|
|
CHECK_AND_ASSERT_MES(! (len<0), false, "negative len"); // check before we cast away sign:
|
|
unsigned long long int len_unsigned = static_cast<long long int>( len );
|
|
CHECK_AND_ASSERT_MES(len>0, false, "len not strictly positive"); // (redundant)
|
|
CHECK_AND_ASSERT_MES(len_unsigned < std::numeric_limits<size_t>::max(), false, "Invalid len_unsigned"); // yeap we want strong < then max size, to be sure
|
|
|
|
void *chunk_start = ((char*)ptr) + pos;
|
|
MDEBUG("chunk_start="<<chunk_start<<" ptr="<<ptr<<" pos="<<pos);
|
|
CHECK_AND_ASSERT_MES(chunk_start >= ptr, false, "Pointer wraparound"); // not wrapped around address?
|
|
//std::memcpy( (void*)buf, chunk_start, len);
|
|
|
|
MDEBUG("part of " << lenall << ": pos="<<pos << " len="<<len);
|
|
|
|
bool ok = do_send_chunk(chunk_start, len); // <====== ***
|
|
|
|
all_ok = all_ok && ok;
|
|
if (!all_ok) {
|
|
MDEBUG("do_send() DONE ***FAILED*** from packet="<<cb<<" B for ptr="<<ptr);
|
|
MDEBUG("do_send() SEND was aborted in middle of big package - this is mostly harmless "
|
|
<< " (e.g. peer closed connection) but if it causes trouble tell us at #monero-dev. " << cb);
|
|
return false; // partial failure in sending
|
|
}
|
|
pos = pos+len;
|
|
CHECK_AND_ASSERT_MES(pos >0, false, "pos <= 0");
|
|
|
|
// (in catch block, or uniq pointer) delete buf;
|
|
} // each chunk
|
|
|
|
MDEBUG("do_send() DONE SPLIT from packet="<<cb<<" B for ptr="<<ptr);
|
|
|
|
MDEBUG("do_send() m_connection_type = " << m_connection_type);
|
|
|
|
return all_ok; // done - e.g. queued - all the chunks of current do_send call
|
|
} // LOCK: chunking
|
|
} // a big block (to be chunked) - all chunks
|
|
else { // small block
|
|
return do_send_chunk(ptr,cb); // just send as 1 big chunk
|
|
}
|
|
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::do_send", false);
|
|
} // do_send()
|
|
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::do_send_chunk(const void* ptr, size_t cb)
|
|
{
|
|
TRY_ENTRY();
|
|
// Use safe_shared_from_this, because of this is public method and it can be called on the object being deleted
|
|
auto self = safe_shared_from_this();
|
|
if(!self)
|
|
return false;
|
|
if(m_was_shutdown)
|
|
return false;
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_throttle_speed_out_mutex);
|
|
m_throttle_speed_out.handle_trafic_exact(cb);
|
|
context.m_current_speed_up = m_throttle_speed_out.get_current_speed();
|
|
context.m_max_speed_up = std::max(context.m_max_speed_up, context.m_current_speed_up);
|
|
}
|
|
|
|
//_info("[sock " << socket().native_handle() << "] SEND " << cb);
|
|
context.m_last_send = time(NULL);
|
|
context.m_send_cnt += cb;
|
|
//some data should be wrote to stream
|
|
//request complete
|
|
|
|
// No sleeping here; sleeping is done once and for all in "handle_write"
|
|
|
|
m_send_que_lock.lock(); // *** critical ***
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){m_send_que_lock.unlock();});
|
|
|
|
long int retry=0;
|
|
const long int retry_limit = 5*4;
|
|
while (m_send_que.size() > ABSTRACT_SERVER_SEND_QUE_MAX_COUNT)
|
|
{
|
|
retry++;
|
|
|
|
/* if ( ::cryptonote::core::get_is_stopping() ) { // TODO re-add fast stop
|
|
_fact("ABORT queue wait due to stopping");
|
|
return false; // aborted
|
|
}*/
|
|
|
|
long int ms = 250 + (rand()%50);
|
|
MDEBUG("Sleeping because QUEUE is FULL, in " << __FUNCTION__ << " for " << ms << " ms before packet_size="<<cb); // XXX debug sleep
|
|
m_send_que_lock.unlock();
|
|
boost::this_thread::sleep(boost::posix_time::milliseconds( ms ) );
|
|
m_send_que_lock.lock();
|
|
_dbg1("sleep for queue: " << ms);
|
|
|
|
if (retry > retry_limit) {
|
|
MWARNING("send que size is more than ABSTRACT_SERVER_SEND_QUE_MAX_COUNT(" << ABSTRACT_SERVER_SEND_QUE_MAX_COUNT << "), shutting down connection");
|
|
shutdown();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
m_send_que.resize(m_send_que.size()+1);
|
|
m_send_que.back().assign((const char*)ptr, cb);
|
|
|
|
if(m_send_que.size() > 1)
|
|
{ // active operation should be in progress, nothing to do, just wait last operation callback
|
|
auto size_now = cb;
|
|
MDEBUG("do_send_chunk() NOW just queues: packet="<<size_now<<" B, is added to queue-size="<<m_send_que.size());
|
|
//do_send_handler_delayed( ptr , size_now ); // (((H))) // empty function
|
|
|
|
LOG_TRACE_CC(context, "[sock " << socket().native_handle() << "] Async send requested " << m_send_que.front().size());
|
|
}
|
|
else
|
|
{ // no active operation
|
|
|
|
if(m_send_que.size()!=1)
|
|
{
|
|
_erro("Looks like no active operations, but send que size != 1!!");
|
|
return false;
|
|
}
|
|
|
|
auto size_now = m_send_que.front().size();
|
|
MDEBUG("do_send_chunk() NOW SENSD: packet="<<size_now<<" B");
|
|
if (speed_limit_is_enabled())
|
|
do_send_handler_write( ptr , size_now ); // (((H)))
|
|
|
|
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), false, "Unexpected queue size");
|
|
reset_timer(get_default_timeout(), false);
|
|
async_write(boost::asio::buffer(m_send_que.front().data(), size_now ) ,
|
|
//strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_write, self, _1, _2)
|
|
//)
|
|
);
|
|
//_dbg3("(chunk): " << size_now);
|
|
//logger_handle_net_write(size_now);
|
|
//_info("[sock " << socket().native_handle() << "] Async send requested " << m_send_que.front().size());
|
|
}
|
|
|
|
//do_send_handler_stop( ptr , cb ); // empty function
|
|
|
|
return true;
|
|
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::do_send_chunk", false);
|
|
} // do_send_chunk
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
boost::posix_time::milliseconds connection<t_protocol_handler>::get_default_timeout()
|
|
{
|
|
unsigned count;
|
|
try { count = host_count(m_host); } catch (...) { count = 0; }
|
|
const unsigned shift = std::min(std::max(count, 1u) - 1, 8u);
|
|
boost::posix_time::milliseconds timeout(0);
|
|
if (m_local)
|
|
timeout = boost::posix_time::milliseconds(DEFAULT_TIMEOUT_MS_LOCAL >> shift);
|
|
else
|
|
timeout = boost::posix_time::milliseconds(DEFAULT_TIMEOUT_MS_REMOTE >> shift);
|
|
return timeout;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
boost::posix_time::milliseconds connection<t_protocol_handler>::get_timeout_from_bytes_read(size_t bytes)
|
|
{
|
|
boost::posix_time::milliseconds ms = (boost::posix_time::milliseconds)(unsigned)(bytes * TIMEOUT_EXTRA_MS_PER_BYTE);
|
|
ms += m_timer.expires_from_now();
|
|
if (ms > get_default_timeout())
|
|
ms = get_default_timeout();
|
|
return ms;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
unsigned int connection<t_protocol_handler>::host_count(const std::string &host, int delta)
|
|
{
|
|
static boost::mutex hosts_mutex;
|
|
CRITICAL_REGION_LOCAL(hosts_mutex);
|
|
static std::map<std::string, unsigned int> hosts;
|
|
unsigned int &val = hosts[host];
|
|
if (delta > 0)
|
|
MTRACE("New connection from host " << host << ": " << val);
|
|
else if (delta < 0)
|
|
MTRACE("Closed connection from host " << host << ": " << val);
|
|
CHECK_AND_ASSERT_THROW_MES(delta >= 0 || val >= (unsigned)-delta, "Count would go negative");
|
|
CHECK_AND_ASSERT_THROW_MES(delta <= 0 || val <= std::numeric_limits<unsigned int>::max() - (unsigned)delta, "Count would wrap");
|
|
val += delta;
|
|
return val;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::reset_timer(boost::posix_time::milliseconds ms, bool add)
|
|
{
|
|
if (m_connection_type != e_connection_type_RPC)
|
|
return;
|
|
MTRACE("Setting " << ms << " expiry");
|
|
auto self = safe_shared_from_this();
|
|
if(!self)
|
|
{
|
|
MERROR("Resetting timer on a dead object");
|
|
return;
|
|
}
|
|
if (add)
|
|
ms += m_timer.expires_from_now();
|
|
m_timer.expires_from_now(ms);
|
|
m_timer.async_wait([=](const boost::system::error_code& ec)
|
|
{
|
|
if(ec == boost::asio::error::operation_aborted)
|
|
return;
|
|
MDEBUG(context << "connection timeout, closing");
|
|
self->close();
|
|
});
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::shutdown()
|
|
{
|
|
CRITICAL_REGION_BEGIN(m_shutdown_lock);
|
|
if (m_was_shutdown)
|
|
return true;
|
|
m_was_shutdown = true;
|
|
// Initiate graceful connection closure.
|
|
m_timer.cancel();
|
|
boost::system::error_code ignored_ec;
|
|
socket().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
|
|
socket().close();
|
|
if (!m_host.empty())
|
|
{
|
|
try { host_count(m_host, -1); } catch (...) { /* ignore */ }
|
|
m_host = "";
|
|
}
|
|
CRITICAL_REGION_END();
|
|
m_protocol_handler.release_protocol();
|
|
return true;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::close()
|
|
{
|
|
TRY_ENTRY();
|
|
auto self = safe_shared_from_this();
|
|
if(!self)
|
|
return false;
|
|
//_info("[sock " << socket().native_handle() << "] Que Shutdown called.");
|
|
m_timer.cancel();
|
|
size_t send_que_size = 0;
|
|
CRITICAL_REGION_BEGIN(m_send_que_lock);
|
|
send_que_size = m_send_que.size();
|
|
CRITICAL_REGION_END();
|
|
boost::interprocess::ipcdetail::atomic_write32(&m_want_close_connection, 1);
|
|
if(!send_que_size)
|
|
{
|
|
shutdown();
|
|
}
|
|
|
|
return true;
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::close", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::send_done()
|
|
{
|
|
if (m_ready_to_close)
|
|
return close();
|
|
m_ready_to_close = true;
|
|
return true;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::cancel()
|
|
{
|
|
return close();
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::handle_write(const boost::system::error_code& e, size_t cb)
|
|
{
|
|
TRY_ENTRY();
|
|
LOG_TRACE_CC(context, "[sock " << socket().native_handle() << "] Async send calledback " << cb);
|
|
|
|
if (e)
|
|
{
|
|
_dbg1("[sock " << socket().native_handle() << "] Some problems at write: " << e.message() << ':' << e.value());
|
|
shutdown();
|
|
return;
|
|
}
|
|
logger_handle_net_write(cb);
|
|
|
|
// The single sleeping that is needed for correctly handling "out" speed throttling
|
|
if (speed_limit_is_enabled()) {
|
|
sleep_before_packet(cb, 1, 1);
|
|
}
|
|
|
|
bool do_shutdown = false;
|
|
CRITICAL_REGION_BEGIN(m_send_que_lock);
|
|
if(m_send_que.empty())
|
|
{
|
|
_erro("[sock " << socket().native_handle() << "] m_send_que.size() == 0 at handle_write!");
|
|
return;
|
|
}
|
|
|
|
m_send_que.pop_front();
|
|
if(m_send_que.empty())
|
|
{
|
|
if(boost::interprocess::ipcdetail::atomic_read32(&m_want_close_connection))
|
|
{
|
|
do_shutdown = true;
|
|
}
|
|
}else
|
|
{
|
|
//have more data to send
|
|
reset_timer(get_default_timeout(), false);
|
|
auto size_now = m_send_que.front().size();
|
|
MDEBUG("handle_write() NOW SENDS: packet="<<size_now<<" B" <<", from queue size="<<m_send_que.size());
|
|
if (speed_limit_is_enabled())
|
|
do_send_handler_write_from_queue(e, m_send_que.front().size() , m_send_que.size()); // (((H)))
|
|
CHECK_AND_ASSERT_MES( size_now == m_send_que.front().size(), void(), "Unexpected queue size");
|
|
async_write(boost::asio::buffer(m_send_que.front().data(), size_now) ,
|
|
// strand_.wrap(
|
|
boost::bind(&connection<t_protocol_handler>::handle_write, connection<t_protocol_handler>::shared_from_this(), _1, _2)
|
|
// )
|
|
);
|
|
//_dbg3("(normal)" << size_now);
|
|
}
|
|
CRITICAL_REGION_END();
|
|
|
|
if(do_shutdown)
|
|
{
|
|
shutdown();
|
|
}
|
|
CATCH_ENTRY_L0("connection<t_protocol_handler>::handle_write", void());
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void connection<t_protocol_handler>::setRpcStation()
|
|
{
|
|
m_connection_type = e_connection_type_RPC;
|
|
MDEBUG("set m_connection_type = RPC ");
|
|
}
|
|
|
|
|
|
template<class t_protocol_handler>
|
|
bool connection<t_protocol_handler>::speed_limit_is_enabled() const {
|
|
return m_connection_type != e_connection_type_RPC ;
|
|
}
|
|
|
|
/************************************************************************/
|
|
/* */
|
|
/************************************************************************/
|
|
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::boosted_tcp_server( t_connection_type connection_type ) :
|
|
m_state(boost::make_shared<typename connection<t_protocol_handler>::shared_state>()),
|
|
m_io_service_local_instance(new worker()),
|
|
io_service_(m_io_service_local_instance->io_service),
|
|
acceptor_(io_service_),
|
|
default_remote(),
|
|
m_stop_signal_sent(false), m_port(0),
|
|
m_threads_count(0),
|
|
m_thread_index(0),
|
|
m_connection_type( connection_type ),
|
|
new_connection_(),
|
|
m_ssl_context({boost::asio::ssl::context(boost::asio::ssl::context::tlsv12), {}})
|
|
{
|
|
create_server_type_map();
|
|
m_thread_name_prefix = "NET";
|
|
}
|
|
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::boosted_tcp_server(boost::asio::io_service& extarnal_io_service, t_connection_type connection_type) :
|
|
m_state(boost::make_shared<typename connection<t_protocol_handler>::shared_state>()),
|
|
io_service_(extarnal_io_service),
|
|
acceptor_(io_service_),
|
|
default_remote(),
|
|
m_stop_signal_sent(false), m_port(0),
|
|
m_threads_count(0),
|
|
m_thread_index(0),
|
|
m_connection_type(connection_type),
|
|
new_connection_(),
|
|
m_ssl_context({boost::asio::ssl::context(boost::asio::ssl::context::sslv23), {}})
|
|
{
|
|
create_server_type_map();
|
|
m_thread_name_prefix = "NET";
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
boosted_tcp_server<t_protocol_handler>::~boosted_tcp_server()
|
|
{
|
|
this->send_stop_signal();
|
|
timed_wait_server_stop(10000);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::create_server_type_map()
|
|
{
|
|
server_type_map["NET"] = e_connection_type_NET;
|
|
server_type_map["RPC"] = e_connection_type_RPC;
|
|
server_type_map["P2P"] = e_connection_type_P2P;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::init_server(uint32_t port, const std::string address, epee::net_utils::ssl_support_t ssl_support, const std::pair<std::string, std::string> &private_key_and_certificate_path, const std::list<std::string> &allowed_certificates, const std::vector<std::vector<uint8_t>> &allowed_fingerprints, bool allow_any_cert)
|
|
{
|
|
TRY_ENTRY();
|
|
m_stop_signal_sent = false;
|
|
m_port = port;
|
|
m_address = address;
|
|
if (ssl_support != epee::net_utils::ssl_support_t::e_ssl_support_disabled)
|
|
m_ssl_context = create_ssl_context(private_key_and_certificate_path, allowed_certificates, allowed_fingerprints, allow_any_cert);
|
|
// Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(address, boost::lexical_cast<std::string>(port), boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
|
|
acceptor_.open(endpoint.protocol());
|
|
acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
|
|
acceptor_.bind(endpoint);
|
|
acceptor_.listen();
|
|
boost::asio::ip::tcp::endpoint binded_endpoint = acceptor_.local_endpoint();
|
|
m_port = binded_endpoint.port();
|
|
MDEBUG("start accept");
|
|
new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_state, m_connection_type, ssl_support, m_ssl_context));
|
|
acceptor_.async_accept(new_connection_->socket(),
|
|
boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
|
|
boost::asio::placeholders::error));
|
|
|
|
return true;
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
MFATAL("Error starting server: " << e.what());
|
|
return false;
|
|
}
|
|
catch (...)
|
|
{
|
|
MFATAL("Error starting server");
|
|
return false;
|
|
}
|
|
}
|
|
//-----------------------------------------------------------------------------
|
|
PUSH_WARNINGS
|
|
DISABLE_GCC_WARNING(maybe-uninitialized)
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::init_server(const std::string port, const std::string& address, epee::net_utils::ssl_support_t ssl_support, const std::pair<std::string, std::string> &private_key_and_certificate_path, const std::list<std::string> &allowed_certificates, const std::vector<std::vector<uint8_t>> &allowed_fingerprints, bool allow_any_cert)
|
|
{
|
|
uint32_t p = 0;
|
|
|
|
if (port.size() && !string_tools::get_xtype_from_string(p, port)) {
|
|
MERROR("Failed to convert port no = " << port);
|
|
return false;
|
|
}
|
|
return this->init_server(p, address, ssl_support, private_key_and_certificate_path, allowed_certificates, allowed_fingerprints, allow_any_cert);
|
|
}
|
|
POP_WARNINGS
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::worker_thread()
|
|
{
|
|
TRY_ENTRY();
|
|
uint32_t local_thr_index = boost::interprocess::ipcdetail::atomic_inc32(&m_thread_index);
|
|
std::string thread_name = std::string("[") + m_thread_name_prefix;
|
|
thread_name += boost::to_string(local_thr_index) + "]";
|
|
MLOG_SET_THREAD_NAME(thread_name);
|
|
// _fact("Thread name: " << m_thread_name_prefix);
|
|
while(!m_stop_signal_sent)
|
|
{
|
|
try
|
|
{
|
|
io_service_.run();
|
|
return true;
|
|
}
|
|
catch(const std::exception& ex)
|
|
{
|
|
_erro("Exception at server worker thread, what=" << ex.what());
|
|
}
|
|
catch(...)
|
|
{
|
|
_erro("Exception at server worker thread, unknown execption");
|
|
}
|
|
}
|
|
//_info("Worker thread finished");
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::worker_thread", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::set_threads_prefix(const std::string& prefix_name)
|
|
{
|
|
m_thread_name_prefix = prefix_name;
|
|
auto it = server_type_map.find(m_thread_name_prefix);
|
|
if (it==server_type_map.end()) throw std::runtime_error("Unknown prefix/server type:" + std::string(prefix_name));
|
|
auto connection_type = it->second; // the value of type
|
|
MINFO("Set server type to: " << connection_type << " from name: " << m_thread_name_prefix << ", prefix_name = " << prefix_name);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::set_connection_filter(i_connection_filter* pfilter)
|
|
{
|
|
assert(m_state != nullptr); // always set in constructor
|
|
m_state->pfilter = pfilter;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::run_server(size_t threads_count, bool wait, const boost::thread::attributes& attrs)
|
|
{
|
|
TRY_ENTRY();
|
|
m_threads_count = threads_count;
|
|
m_main_thread_id = boost::this_thread::get_id();
|
|
MLOG_SET_THREAD_NAME("[SRV_MAIN]");
|
|
while(!m_stop_signal_sent)
|
|
{
|
|
|
|
// Create a pool of threads to run all of the io_services.
|
|
CRITICAL_REGION_BEGIN(m_threads_lock);
|
|
for (std::size_t i = 0; i < threads_count; ++i)
|
|
{
|
|
boost::shared_ptr<boost::thread> thread(new boost::thread(
|
|
attrs, boost::bind(&boosted_tcp_server<t_protocol_handler>::worker_thread, this)));
|
|
_note("Run server thread name: " << m_thread_name_prefix);
|
|
m_threads.push_back(thread);
|
|
}
|
|
CRITICAL_REGION_END();
|
|
// Wait for all threads in the pool to exit.
|
|
if (wait)
|
|
{
|
|
_fact("JOINING all threads");
|
|
for (std::size_t i = 0; i < m_threads.size(); ++i) {
|
|
m_threads[i]->join();
|
|
}
|
|
_fact("JOINING all threads - almost");
|
|
m_threads.clear();
|
|
_fact("JOINING all threads - DONE");
|
|
|
|
}
|
|
else {
|
|
_dbg1("Reiniting OK.");
|
|
return true;
|
|
}
|
|
|
|
if(wait && !m_stop_signal_sent)
|
|
{
|
|
//some problems with the listening socket ?..
|
|
_dbg1("Net service stopped without stop request, restarting...");
|
|
if(!this->init_server(m_port, m_address))
|
|
{
|
|
_dbg1("Reiniting service failed, exit.");
|
|
return false;
|
|
}else
|
|
{
|
|
_dbg1("Reiniting OK.");
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::run_server", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::is_thread_worker()
|
|
{
|
|
TRY_ENTRY();
|
|
CRITICAL_REGION_LOCAL(m_threads_lock);
|
|
BOOST_FOREACH(boost::shared_ptr<boost::thread>& thp, m_threads)
|
|
{
|
|
if(thp->get_id() == boost::this_thread::get_id())
|
|
return true;
|
|
}
|
|
if(m_threads_count == 1 && boost::this_thread::get_id() == m_main_thread_id)
|
|
return true;
|
|
return false;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::is_thread_worker", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::timed_wait_server_stop(uint64_t wait_mseconds)
|
|
{
|
|
TRY_ENTRY();
|
|
boost::chrono::milliseconds ms(wait_mseconds);
|
|
for (std::size_t i = 0; i < m_threads.size(); ++i)
|
|
{
|
|
if(m_threads[i]->joinable() && !m_threads[i]->try_join_for(ms))
|
|
{
|
|
_dbg1("Interrupting thread " << m_threads[i]->native_handle());
|
|
m_threads[i]->interrupt();
|
|
}
|
|
}
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::timed_wait_server_stop", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::send_stop_signal()
|
|
{
|
|
m_stop_signal_sent = true;
|
|
TRY_ENTRY();
|
|
connections_mutex.lock();
|
|
for (auto &c: connections_)
|
|
{
|
|
c->cancel();
|
|
}
|
|
connections_.clear();
|
|
connections_mutex.unlock();
|
|
io_service_.stop();
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::send_stop_signal()", void());
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
void boosted_tcp_server<t_protocol_handler>::handle_accept(const boost::system::error_code& e)
|
|
{
|
|
MDEBUG("handle_accept");
|
|
try
|
|
{
|
|
if (!e)
|
|
{
|
|
if (m_connection_type == e_connection_type_RPC) {
|
|
const char *ssl_message = "unknown";
|
|
switch (new_connection_->get_ssl_support())
|
|
{
|
|
case epee::net_utils::ssl_support_t::e_ssl_support_disabled: ssl_message = "disabled"; break;
|
|
case epee::net_utils::ssl_support_t::e_ssl_support_enabled: ssl_message = "enabled"; break;
|
|
case epee::net_utils::ssl_support_t::e_ssl_support_autodetect: ssl_message = "autodetection"; break;
|
|
}
|
|
MDEBUG("New server for RPC connections, SSL " << ssl_message);
|
|
new_connection_->setRpcStation(); // hopefully this is not needed actually
|
|
}
|
|
connection_ptr conn(std::move(new_connection_));
|
|
new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_state, m_connection_type, conn->get_ssl_support(), m_ssl_context));
|
|
acceptor_.async_accept(new_connection_->socket(),
|
|
boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
|
|
boost::asio::placeholders::error));
|
|
|
|
boost::asio::socket_base::keep_alive opt(true);
|
|
conn->socket().set_option(opt);
|
|
|
|
bool res;
|
|
if (default_remote.get_type_id() == net_utils::address_type::invalid)
|
|
res = conn->start(true, 1 < m_threads_count);
|
|
else
|
|
res = conn->start(true, 1 < m_threads_count, default_remote);
|
|
if (!res)
|
|
{
|
|
conn->cancel();
|
|
return;
|
|
}
|
|
conn->save_dbg_log();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
MERROR("Error in boosted_tcp_server<t_protocol_handler>::handle_accept: " << e);
|
|
}
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
MERROR("Exception in boosted_tcp_server<t_protocol_handler>::handle_accept: " << e.what());
|
|
}
|
|
|
|
// error path, if e or exception
|
|
assert(m_state != nullptr); // always set in constructor
|
|
_erro("Some problems at accept: " << e.message() << ", connections_count = " << m_state->sock_count);
|
|
misc_utils::sleep_no_w(100);
|
|
new_connection_.reset(new connection<t_protocol_handler>(io_service_, m_state, m_connection_type, new_connection_->get_ssl_support(), m_ssl_context));
|
|
acceptor_.async_accept(new_connection_->socket(),
|
|
boost::bind(&boosted_tcp_server<t_protocol_handler>::handle_accept, this,
|
|
boost::asio::placeholders::error));
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::add_connection(t_connection_context& out, boost::asio::ip::tcp::socket&& sock, network_address real_remote, epee::net_utils::ssl_support_t ssl_support)
|
|
{
|
|
if(std::addressof(get_io_service()) == std::addressof(sock.get_io_service()))
|
|
{
|
|
connection_ptr conn(new connection<t_protocol_handler>(std::move(sock), m_state, m_connection_type, ssl_support, m_ssl_context));
|
|
if(conn->start(false, 1 < m_threads_count, std::move(real_remote)))
|
|
{
|
|
conn->get_context(out);
|
|
conn->save_dbg_log();
|
|
return true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
MWARNING(out << " was not added, socket/io_service mismatch");
|
|
}
|
|
return false;
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
typename boosted_tcp_server<t_protocol_handler>::try_connect_result_t boosted_tcp_server<t_protocol_handler>::try_connect(connection_ptr new_connection_l, const std::string& adr, const std::string& port, boost::asio::ip::tcp::socket &sock_, const boost::asio::ip::tcp::endpoint &remote_endpoint, const std::string &bind_ip, uint32_t conn_timeout, epee::net_utils::ssl_support_t ssl_support)
|
|
{
|
|
TRY_ENTRY();
|
|
|
|
sock_.open(remote_endpoint.protocol());
|
|
if(bind_ip != "0.0.0.0" && bind_ip != "0" && bind_ip != "" )
|
|
{
|
|
boost::asio::ip::tcp::endpoint local_endpoint(boost::asio::ip::address::from_string(bind_ip.c_str()), 0);
|
|
boost::system::error_code ec;
|
|
sock_.bind(local_endpoint, ec);
|
|
if (ec)
|
|
{
|
|
MERROR("Error binding to " << bind_ip << ": " << ec.message());
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return CONNECT_FAILURE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
NOTICE: be careful to make sync connection from event handler: in case if all threads suddenly do sync connect, there will be no thread to dispatch events from io service.
|
|
*/
|
|
|
|
boost::system::error_code ec = boost::asio::error::would_block;
|
|
|
|
//have another free thread(s), work in wait mode, without event handling
|
|
struct local_async_context
|
|
{
|
|
boost::system::error_code ec;
|
|
boost::mutex connect_mut;
|
|
boost::condition_variable cond;
|
|
};
|
|
|
|
boost::shared_ptr<local_async_context> local_shared_context(new local_async_context());
|
|
local_shared_context->ec = boost::asio::error::would_block;
|
|
boost::unique_lock<boost::mutex> lock(local_shared_context->connect_mut);
|
|
auto connect_callback = [](boost::system::error_code ec_, boost::shared_ptr<local_async_context> shared_context)
|
|
{
|
|
shared_context->connect_mut.lock(); shared_context->ec = ec_; shared_context->cond.notify_one(); shared_context->connect_mut.unlock();
|
|
};
|
|
|
|
sock_.async_connect(remote_endpoint, boost::bind<void>(connect_callback, _1, local_shared_context));
|
|
while(local_shared_context->ec == boost::asio::error::would_block)
|
|
{
|
|
bool r = local_shared_context->cond.timed_wait(lock, boost::get_system_time() + boost::posix_time::milliseconds(conn_timeout));
|
|
if (m_stop_signal_sent)
|
|
{
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return CONNECT_FAILURE;
|
|
}
|
|
if(local_shared_context->ec == boost::asio::error::would_block && !r)
|
|
{
|
|
//timeout
|
|
sock_.close();
|
|
_dbg3("Failed to connect to " << adr << ":" << port << ", because of timeout (" << conn_timeout << ")");
|
|
return CONNECT_FAILURE;
|
|
}
|
|
}
|
|
ec = local_shared_context->ec;
|
|
|
|
if (ec || !sock_.is_open())
|
|
{
|
|
_dbg3("Some problems at connect, message: " << ec.message());
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return CONNECT_FAILURE;
|
|
}
|
|
|
|
_dbg3("Connected success to " << adr << ':' << port);
|
|
|
|
const epee::net_utils::ssl_support_t ssl_support = new_connection_l->get_ssl_support();
|
|
if (ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_enabled || ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_autodetect)
|
|
{
|
|
// Handshake
|
|
MDEBUG("Handshaking SSL...");
|
|
if (!new_connection_l->handshake(boost::asio::ssl::stream_base::client))
|
|
{
|
|
if (ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_autodetect)
|
|
{
|
|
boost::system::error_code ignored_ec;
|
|
sock_.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ignored_ec);
|
|
sock_.close();
|
|
return CONNECT_NO_SSL;
|
|
}
|
|
MERROR("SSL handshake failed");
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return CONNECT_FAILURE;
|
|
}
|
|
}
|
|
|
|
return CONNECT_SUCCESS;
|
|
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::try_connect", CONNECT_FAILURE);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler>
|
|
bool boosted_tcp_server<t_protocol_handler>::connect(const std::string& adr, const std::string& port, uint32_t conn_timeout, t_connection_context& conn_context, const std::string& bind_ip, epee::net_utils::ssl_support_t ssl_support)
|
|
{
|
|
TRY_ENTRY();
|
|
|
|
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_state, m_connection_type, ssl_support, m_ssl_context) );
|
|
connections_mutex.lock();
|
|
connections_.insert(new_connection_l);
|
|
MDEBUG("connections_ size now " << connections_.size());
|
|
connections_mutex.unlock();
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
|
|
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(boost::asio::ip::tcp::v4(), adr, port, boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
|
|
boost::asio::ip::tcp::resolver::iterator end;
|
|
if(iterator == end)
|
|
{
|
|
_erro("Failed to resolve " << adr);
|
|
return false;
|
|
}
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
//boost::asio::ip::tcp::endpoint remote_endpoint(boost::asio::ip::address::from_string(addr.c_str()), port);
|
|
boost::asio::ip::tcp::endpoint remote_endpoint(*iterator);
|
|
|
|
auto try_connect_result = try_connect(new_connection_l, adr, port, sock_, remote_endpoint, bind_ip, conn_timeout, ssl_support);
|
|
if (try_connect_result == CONNECT_FAILURE)
|
|
return false;
|
|
if (ssl_support == epee::net_utils::ssl_support_t::e_ssl_support_autodetect && try_connect_result == CONNECT_NO_SSL)
|
|
{
|
|
// we connected, but could not connect with SSL, try without
|
|
MERROR("SSL handshake failed on an autodetect connection, reconnecting without SSL");
|
|
new_connection_l->disable_ssl();
|
|
try_connect_result = try_connect(new_connection_l, adr, port, sock_, remote_endpoint, bind_ip, conn_timeout, epee::net_utils::ssl_support_t::e_ssl_support_disabled);
|
|
if (try_connect_result != CONNECT_SUCCESS)
|
|
return false;
|
|
}
|
|
|
|
// start adds the connection to the config object's list, so we don't need to have it locally anymore
|
|
connections_mutex.lock();
|
|
connections_.erase(new_connection_l);
|
|
connections_mutex.unlock();
|
|
bool r = new_connection_l->start(false, 1 < m_threads_count);
|
|
if (r)
|
|
{
|
|
new_connection_l->get_context(conn_context);
|
|
//new_connection_l.reset(new connection<t_protocol_handler>(io_service_, m_config, m_sock_count, m_pfilter));
|
|
}
|
|
else
|
|
{
|
|
assert(m_state != nullptr); // always set in constructor
|
|
_erro("[sock " << new_connection_l->socket().native_handle() << "] Failed to start connection, connections_count = " << m_state->sock_count);
|
|
}
|
|
|
|
new_connection_l->save_dbg_log();
|
|
|
|
return r;
|
|
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::connect", false);
|
|
}
|
|
//---------------------------------------------------------------------------------
|
|
template<class t_protocol_handler> template<class t_callback>
|
|
bool boosted_tcp_server<t_protocol_handler>::connect_async(const std::string& adr, const std::string& port, uint32_t conn_timeout, const t_callback &cb, const std::string& bind_ip, epee::net_utils::ssl_support_t ssl_support)
|
|
{
|
|
TRY_ENTRY();
|
|
connection_ptr new_connection_l(new connection<t_protocol_handler>(io_service_, m_state, m_connection_type, ssl_support, m_ssl_context) );
|
|
connections_mutex.lock();
|
|
connections_.insert(new_connection_l);
|
|
MDEBUG("connections_ size now " << connections_.size());
|
|
connections_mutex.unlock();
|
|
epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ CRITICAL_REGION_LOCAL(connections_mutex); connections_.erase(new_connection_l); });
|
|
boost::asio::ip::tcp::socket& sock_ = new_connection_l->socket();
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::resolver resolver(io_service_);
|
|
boost::asio::ip::tcp::resolver::query query(boost::asio::ip::tcp::v4(), adr, port, boost::asio::ip::tcp::resolver::query::canonical_name);
|
|
boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
|
|
boost::asio::ip::tcp::resolver::iterator end;
|
|
if(iterator == end)
|
|
{
|
|
_erro("Failed to resolve " << adr);
|
|
return false;
|
|
}
|
|
//////////////////////////////////////////////////////////////////////////
|
|
boost::asio::ip::tcp::endpoint remote_endpoint(*iterator);
|
|
|
|
sock_.open(remote_endpoint.protocol());
|
|
if(bind_ip != "0.0.0.0" && bind_ip != "0" && bind_ip != "" )
|
|
{
|
|
boost::asio::ip::tcp::endpoint local_endpoint(boost::asio::ip::address::from_string(bind_ip.c_str()), 0);
|
|
boost::system::error_code ec;
|
|
sock_.bind(local_endpoint, ec);
|
|
if (ec)
|
|
{
|
|
MERROR("Error binding to " << bind_ip << ": " << ec.message());
|
|
if (sock_.is_open())
|
|
sock_.close();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
boost::shared_ptr<boost::asio::deadline_timer> sh_deadline(new boost::asio::deadline_timer(io_service_));
|
|
//start deadline
|
|
sh_deadline->expires_from_now(boost::posix_time::milliseconds(conn_timeout));
|
|
sh_deadline->async_wait([=](const boost::system::error_code& error)
|
|
{
|
|
if(error != boost::asio::error::operation_aborted)
|
|
{
|
|
_dbg3("Failed to connect to " << adr << ':' << port << ", because of timeout (" << conn_timeout << ")");
|
|
new_connection_l->socket().close();
|
|
}
|
|
});
|
|
//start async connect
|
|
sock_.async_connect(remote_endpoint, [=](const boost::system::error_code& ec_)
|
|
{
|
|
t_connection_context conn_context = AUTO_VAL_INIT(conn_context);
|
|
boost::system::error_code ignored_ec;
|
|
boost::asio::ip::tcp::socket::endpoint_type lep = new_connection_l->socket().local_endpoint(ignored_ec);
|
|
if(!ec_)
|
|
{//success
|
|
if(!sh_deadline->cancel())
|
|
{
|
|
cb(conn_context, boost::asio::error::operation_aborted);//this mean that deadline timer already queued callback with cancel operation, rare situation
|
|
}else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Connected success to " << adr << ':' << port <<
|
|
" from " << lep.address().to_string() << ':' << lep.port());
|
|
|
|
// start adds the connection to the config object's list, so we don't need to have it locally anymore
|
|
connections_mutex.lock();
|
|
connections_.erase(new_connection_l);
|
|
connections_mutex.unlock();
|
|
bool r = new_connection_l->start(false, 1 < m_threads_count);
|
|
if (r)
|
|
{
|
|
new_connection_l->get_context(conn_context);
|
|
cb(conn_context, ec_);
|
|
}
|
|
else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Failed to start connection to " << adr << ':' << port);
|
|
cb(conn_context, boost::asio::error::fault);
|
|
}
|
|
}
|
|
}else
|
|
{
|
|
_dbg3("[sock " << new_connection_l->socket().native_handle() << "] Failed to connect to " << adr << ':' << port <<
|
|
" from " << lep.address().to_string() << ':' << lep.port() << ": " << ec_.message() << ':' << ec_.value());
|
|
cb(conn_context, ec_);
|
|
}
|
|
});
|
|
return true;
|
|
CATCH_ENTRY_L0("boosted_tcp_server<t_protocol_handler>::connect_async", false);
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace
|
|
PRAGMA_WARNING_POP
|