124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
/*
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Copyright (c) 2017, Arvid Norberg, Steven Siloti
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All rights reserved.
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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
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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
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "libtorrent/aux_/session_udp_sockets.hpp"
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#include "libtorrent/aux_/session_impl.hpp"
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#include "libtorrent/error_code.hpp"
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namespace libtorrent { namespace aux {
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std::vector<std::shared_ptr<outgoing_udp_socket>>::iterator
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outgoing_sockets::partition_outgoing_sockets(std::vector<listen_endpoint_t>& eps)
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{
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return std::partition(sockets.begin(), sockets.end()
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, [&eps](std::shared_ptr<outgoing_udp_socket> const& sock)
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{
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auto match = std::find_if(eps.begin(), eps.end()
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, [&sock](listen_endpoint_t const& ep)
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{
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return ep.device == sock->device
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&& ep.addr == sock->sock.local_endpoint().address()
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&& ep.ssl == sock->ssl;
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});
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if (match != eps.end())
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{
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// remove the matched endpoint to signal the caller that it
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// doesn't need to create a socket for the endpoint
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eps.erase(match);
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return true;
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}
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else
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{
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return false;
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}
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});
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}
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tcp::endpoint outgoing_sockets::bind(socket_type& s
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, address const& remote_address, error_code& ec) const
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{
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if (sockets.empty())
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{
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ec.assign(boost::system::errc::not_supported, generic_category());
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return tcp::endpoint();
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}
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utp_socket_impl* impl = nullptr;
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transport ssl = transport::plaintext;
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#ifdef TORRENT_USE_OPENSSL
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if (s.get<ssl_stream<utp_stream>>() != nullptr)
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{
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impl = s.get<ssl_stream<utp_stream>>()->next_layer().get_impl();
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ssl = transport::ssl;
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}
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else
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#endif
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impl = s.get<utp_stream>()->get_impl();
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auto& idx = index[remote_address.is_v4() ? 0 : 1][ssl == transport::ssl ? 1 : 0];
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auto const index_begin = idx;
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for (;;)
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{
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if (++idx >= sockets.size())
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idx = 0;
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if (is_v4(sockets[idx]->local_endpoint()) != remote_address.is_v4()
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|| sockets[idx]->ssl != ssl)
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{
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if (idx == index_begin) break;
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continue;
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}
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utp_init_socket(impl, sockets[idx]);
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auto udp_ep = sockets[idx]->local_endpoint();
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return tcp::endpoint(udp_ep.address(), udp_ep.port());
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}
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return tcp::endpoint();
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}
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void outgoing_sockets::update_proxy(proxy_settings const& settings, alert_manager& alerts)
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{
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for (auto const& i : sockets)
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i->sock.set_proxy_settings(settings, alerts);
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}
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void outgoing_sockets::close()
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{
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for (auto const& l : sockets)
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l->sock.close();
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}
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} }
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