mirror of
https://github.com/OpenVPN/openvpn.git
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eca86913db
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2995 e7ae566f-a301-0410-adde-c780ea21d3b5
86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* OpenVPN -- An application to securely tunnel IP networks
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* over a single TCP/UDP 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) 2002-2008 OpenVPN Solutions LLC <info@openvpn.net>
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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 General Public License version 2
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef FORWARD_H
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#define FORWARD_H
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#include "openvpn.h"
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#include "occ.h"
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#include "ping.h"
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#define TUN_OUT(c) (BLEN(&(c)->c2.to_tun) > 0)
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#define LINK_OUT(c) (BLEN(&(c)->c2.to_link) > 0)
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#define ANY_OUT(c) (TUN_OUT(c) || LINK_OUT(c))
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#ifdef ENABLE_FRAGMENT
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#define TO_LINK_FRAG(c) ((c)->c2.fragment && fragment_outgoing_defined ((c)->c2.fragment))
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#else
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#define TO_LINK_FRAG(c) (false)
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#endif
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#define TO_LINK_DEF(c) (LINK_OUT(c) || TO_LINK_FRAG(c))
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#define IOW_TO_TUN (1<<0)
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#define IOW_TO_LINK (1<<1)
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#define IOW_READ_TUN (1<<2)
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#define IOW_READ_LINK (1<<3)
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#define IOW_SHAPER (1<<4)
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#define IOW_CHECK_RESIDUAL (1<<5)
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#define IOW_FRAG (1<<6)
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#define IOW_MBUF (1<<7)
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#define IOW_READ_TUN_FORCE (1<<8)
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#define IOW_WAIT_SIGNAL (1<<9)
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#define IOW_READ (IOW_READ_TUN|IOW_READ_LINK)
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void pre_select (struct context *c);
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void process_io (struct context *c);
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void encrypt_sign (struct context *c, bool comp_frag);
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const char *wait_status_string (struct context *c, struct gc_arena *gc);
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void show_wait_status (struct context *c);
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void read_incoming_link (struct context *c);
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void process_incoming_link (struct context *c);
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void read_incoming_tun (struct context *c);
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void process_incoming_tun (struct context *c);
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void process_outgoing_link (struct context *c);
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void process_outgoing_tun (struct context *c);
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bool send_control_channel_string (struct context *c, const char *str, int msglevel);
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#define PIPV4_PASSTOS (1<<0)
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#define PIPV4_MSSFIX (1<<1)
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#define PIPV4_OUTGOING (1<<2)
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void process_ipv4_header (struct context *c, unsigned int flags, struct buffer *buf);
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#if P2MP
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void schedule_exit (struct context *c, const int n_seconds);
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#endif
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#endif /* FORWARD_H */
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