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31 results

sdpmedia.cpp

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    upnp_control.cpp 4.07 KiB
    /*
     *  Copyright (C) 2004-2015 Savoir-Faire Linux Inc.
     *  Author: Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com>
     *
     *  This program is free software; you can redistribute it and/or modify
     *  it under the terms of the GNU General Public License as published by
     *  the Free Software Foundation; either version 3 of the License, or
     *  (at your option) any later version.
     *
     *  This program is distributed in the hope that it will be useful,
     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     *  GNU General Public License for more details.
     *
     *  You should have received a copy of the GNU General Public License
     *  along with this program; if not, write to the Free Software
     *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
     *
     *  Additional permission under GNU GPL version 3 section 7:
     *
     *  If you modify this program, or any covered work, by linking or
     *  combining it with the OpenSSL project's OpenSSL library (or a
     *  modified version of that library), containing parts covered by the
     *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
     *  grants you additional permission to convey the resulting work.
     *  Corresponding Source for a non-source form of such a combination
     *  shall include the source code for the parts of OpenSSL used as well
     *  as that of the covered work.
     */
    
    #ifdef HAVE_CONFIG_H
    #include "config.h"
    #endif
    
    #include "upnp_control.h"
    
    #include <memory>
    
    #include "logger.h"
    #include "ip_utils.h"
    #include "upnp_context.h"
    #include "upnp_igd.h"
    
    namespace ring { namespace upnp {
    
    Controller::Controller()
    {
        try {
            upnpContext_ = getUPnPContext();
        } catch (std::runtime_error& e) {
            RING_ERR("UPnP context error: %s", e.what());
        }
    }
    
    Controller::~Controller()
    {
        /* remove all mappings */
        removeMappings();
    }
    
    bool
    Controller::hasValidIGD(std::chrono::seconds timeout)
    {
    #if HAVE_LIBUPNP
        return upnpContext_ and upnpContext_->hasValidIGD(timeout);
    #endif
        return false;
    }
    
    bool
    Controller::addAnyMapping(uint16_t port_desired,
                              uint16_t port_local,
                              PortType type,
                              bool use_same_port,
                              bool unique,
                              uint16_t *port_used)
    {
    #if HAVE_LIBUPNP
        if (not upnpContext_)
            return false;
    
        Mapping mapping = upnpContext_->addAnyMapping(port_desired, port_local, type,
                                                      use_same_port, unique);
        if (mapping) {
            auto usedPort = mapping.getPortExternal();
            if (port_used)
                *port_used = usedPort;
    
            /* add to map */
            auto& instanceMappings = type == PortType::UDP ? udpMappings_ : tcpMappings_;
            instanceMappings.emplace(usedPort, std::move(mapping));
            return true;
        }
    #endif
        return false;
    }
    
    bool
    Controller::addAnyMapping(uint16_t port_desired,
                              PortType type,
                              bool unique,
                              uint16_t *port_used)
    {
        return addAnyMapping(port_desired, port_desired, type, true, unique,
                             port_used);
    }
    
    void
    Controller::removeMappings(PortType type) {
    #if HAVE_LIBUPNP
        if (not upnpContext_)
            return;
    
        auto& instanceMappings = type == PortType::UDP ? udpMappings_ : tcpMappings_;
        for (auto iter = instanceMappings.begin(); iter != instanceMappings.end(); ){
            auto& mapping = iter->second;
            upnpContext_->removeMapping(mapping);
            iter = instanceMappings.erase(iter);
        }
    #endif
    }
    void
    Controller::removeMappings()
    {
    #if HAVE_LIBUPNP
        removeMappings(PortType::UDP);
        removeMappings(PortType::TCP);
    #endif
    }
    
    IpAddr
    Controller::getLocalIP() const
    {
    #if HAVE_LIBUPNP
        if (upnpContext_)
            return upnpContext_->getLocalIP();
    #endif
        return {}; //  empty address
    }
    
    IpAddr
    Controller::getExternalIP() const
    {
    #if HAVE_LIBUPNP
        if (upnpContext_)
            return upnpContext_->getExternalIP();
    #endif
        return {}; //  empty address
    }
    
    }} // namespace ring::upnp