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Diffstat (limited to 'openvpn/src/openvpn/mudp.h')
-rw-r--r-- | openvpn/src/openvpn/mudp.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/openvpn/src/openvpn/mudp.h b/openvpn/src/openvpn/mudp.h new file mode 100644 index 00000000..97f961b3 --- /dev/null +++ b/openvpn/src/openvpn/mudp.h @@ -0,0 +1,71 @@ +/* + * 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) 2002-2010 OpenVPN Technologies, 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 (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * UDP specific code for --mode server + */ + +#ifndef MUDP_H +#define MUDP_H + +#if P2MP_SERVER + +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); + +#endif +#endif |