From 581bef87088ed2c559f66552088166903cf0098d Mon Sep 17 00:00:00 2001 From: James Yonan Date: Fri, 18 Feb 2011 17:48:25 +0000 Subject: Added "client-nat" option for stateless, one-to-one NAT on the client side. Version 2.1.3i. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6944 e7ae566f-a301-0410-adde-c780ea21d3b5 --- clinat.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 clinat.h (limited to 'clinat.h') diff --git a/clinat.h b/clinat.h new file mode 100644 index 0000000..d55a727 --- /dev/null +++ b/clinat.h @@ -0,0 +1,65 @@ +/* + * 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. + * + * 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 + */ + +#if !defined(CLINAT_H) && defined(ENABLE_CLIENT_NAT) +#define CLINAT_H + +#include "buffer.h" + +#define MAX_CLIENT_NAT 64 + +#define CN_OUTGOING 0 +#define CN_INCOMING 1 + +struct client_nat_entry { +# define CN_SNAT 0 +# define CN_DNAT 1 + int type; + in_addr_t network; + in_addr_t netmask; + in_addr_t foreign_network; +}; + +struct client_nat_option_list { + int n; + struct client_nat_entry entries[MAX_CLIENT_NAT]; +}; + +struct client_nat_option_list *new_client_nat_list (struct gc_arena *gc); +struct client_nat_option_list *clone_client_nat_option_list (const struct client_nat_option_list *src, struct gc_arena *gc); +void copy_client_nat_option_list (struct client_nat_option_list *dest, const struct client_nat_option_list *src); +void print_client_nat_list(const struct client_nat_option_list *list, int msglevel); + +void add_client_nat_to_option_list (struct client_nat_option_list *dest, + const char *type, + const char *network, + const char *netmask, + const char *foreign_network, + int msglevel); + +void client_nat_transform (const struct client_nat_option_list *list, + struct buffer *ipbuf, + const int direction); + +#endif -- cgit