mirror of
https://github.com/OpenVPN/openvpn3.git
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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2020 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#ifndef OPENVPN_TRANSPORT_ALTPROXY_H
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#define OPENVPN_TRANSPORT_ALTPROXY_H
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#include <string>
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#include <openvpn/common/rc.hpp>
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#include <openvpn/transport/client/transbase.hpp>
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#include <openvpn/transport/socket_protect.hpp>
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#include <openvpn/client/remotelist.hpp>
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#include <openvpn/crypto/digestapi.hpp>
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namespace openvpn {
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struct AltProxy : public RC<thread_unsafe_refcount>
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{
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struct Config
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{
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Config()
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: free_list_max_size(8),
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socket_protect(nullptr)
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{}
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RemoteList::Ptr remote_list;
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size_t free_list_max_size;
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Frame::Ptr frame;
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SessionStats::Ptr stats;
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RandomAPI::Ptr rng;
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DigestFactory::Ptr digest_factory;
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SocketProtect* socket_protect;
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};
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typedef RCPtr<AltProxy> Ptr;
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// return proxy name
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virtual std::string name() const = 0;
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// called to indicate whether or not remote_list should be cached
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virtual void set_enable_cache(const bool enable_cache) = 0;
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// return a RemoteList::Ptr (optional) to precache it
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virtual void precache(RemoteList::Ptr& r) = 0;
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// iterate to next host in proxy-specific remote_list, return true
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// to prevent next() from being called on global remote_list
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virtual bool next() = 0;
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// return true if this proxy method only supports TCP transport
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virtual bool requires_tcp() const = 0;
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// return a new TransportClientFactory for this proxy
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virtual TransportClientFactory::Ptr new_transport_client_factory(const Config&) = 0;
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};
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}
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#endif
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