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/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single TCP/UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2021 OpenVPN Inc <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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.
*/
/*
* UDP specific code for --mode server
*/
#ifndef MUDP_H
#define MUDP_H
struct context;
struct multi_context;
/**************************************************************************/
/**
* Main event loop wrapper function for OpenVPN in UDP server mode.
* @ingroup eventloop
*
* This function simply calls \c tunnel_server_udp_single_threaded().
*
* @param top - Top-level context structure.
*/
void tunnel_server_udp(struct context *top);
/**************************************************************************/
/**
* Get, and if necessary create, the multi_instance associated with a
* packet's source address.
* @ingroup external_multiplexer
*
* This function extracts the source address of a recently read packet
* from \c m->top.c2.from and uses that source address as a hash key for
* the hash table \c m->hash. If an entry exists, this function returns
* it. If no entry exists, this function handles its creation, and if
* successful, returns the newly created instance.
*
* @param m - The single multi_context structure.
*
* @return A pointer to a multi_instance if one already existed for the
* packet's source address or if one was a newly created successfully.
* NULL if one did not yet exist and a new one was not created.
*/
struct multi_instance *multi_get_create_instance_udp(struct multi_context *m, bool *floated);
#endif /* ifndef MUDP_H */
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