gvpe/src/vpn.h

/*
    vpn.h -- header for vpn.C
    Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
 
    This file is part of GVPE.

    GVPE is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    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 gvpe; if not, write to the Free Software
    Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef GVPE_VPN_H__
#define GVPE_VPN_H__

#include "global.h"
#include "conf.h"
#include "device.h"
#include "connection.h"

struct vpn
{
  int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd;
  int udpv4_tos,           ipv4_tos, icmpv4_tos, dnsv4_tos;

  int events;

  enum {
    EVENT_RECONNECT = 1,
    EVENT_SHUTDOWN  = 2,
  };

  void event_cb (ev::timer &w, int revents); ev::timer event;

  tap_device *tap;

  typedef vector<connection *> conns_vector;
  conns_vector conns;

  connection *find_router ();
  connection *find_forwarder ();

  void reconnect_all ();
  void shutdown_all ();

  void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher;
  void inject_data_packet (tap_packet *pkt, int dst);

  void send_connect_request (int id);

  void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
  bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);

#if ENABLE_TCP
  void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
  bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
#endif

#if ENABLE_ICMP
  void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
  bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
#endif

#if ENABLE_DNS
  vector<struct dns_snd *> dns_sndpq;
  sockinfo dns_forwarder;

  void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
  void dnsv4_server (struct dns_packet &pkt);
  void dnsv4_client (struct dns_packet &pkt);

  bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
#endif

  void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
  bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);

  void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
  bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);

  vpn ();
  ~vpn ();

  int setup ();

  void dump_status ();

  void script_init_env ();
  const char *script_if_init ();
  const char *script_if_up ();
};

extern vpn network; // THE vpn

#endif

Revision:	1.27
Committed:	Sun Dec 2 00:20:19 2007 UTC (16 years, 5 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
Changes since 1.26:	+2 -2 lines
Log Message:	cache tos
#	User	Rev	Content
1	pcg	1.1	/*
2			vpn.h -- header for vpn.C
3	pcg	1.18	Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
4	pcg	1.1
5	pcg	1.18	This file is part of GVPE.
6
7			GVPE is free software; you can redistribute it and/or modify
8	pcg	1.1	it under the terms of the GNU General Public License as published by
9			the Free Software Foundation; either version 2 of the License, or
10			(at your option) any later version.
11
12			This program is distributed in the hope that it will be useful,
13			but WITHOUT ANY WARRANTY; without even the implied warranty of
14			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			GNU General Public License for more details.
16
17			You should have received a copy of the GNU General Public License
18	pcg	1.18	along with gvpe; if not, write to the Free Software
19	pcg	1.24	Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20	pcg	1.1	*/
21
22	pcg	1.22	#ifndef GVPE_VPN_H__
23			#define GVPE_VPN_H__
24	pcg	1.1
25	pcg	1.2	#include "global.h"
26	pcg	1.1	#include "conf.h"
27			#include "device.h"
28			#include "connection.h"
29
30			struct vpn
31	pcg	1.26	{
32	pcg	1.27	int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd;
33			int udpv4_tos, ipv4_tos, icmpv4_tos, dnsv4_tos;
34	pcg	1.26
35			int events;
36
37			enum {
38			EVENT_RECONNECT = 1,
39			EVENT_SHUTDOWN = 2,
40			};
41	pcg	1.1
42	pcg	1.26	void event_cb (ev::timer &w, int revents); ev::timer event;
43	pcg	1.1
44	pcg	1.26	tap_device *tap;
45	pcg	1.1
46	pcg	1.26	typedef vector<connection *> conns_vector;
47			conns_vector conns;
48	pcg	1.1
49	pcg	1.26	connection *find_router ();
50			connection *find_forwarder ();
51	pcg	1.1
52	pcg	1.26	void reconnect_all ();
53			void shutdown_all ();
54	pcg	1.1
55	pcg	1.26	void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher;
56			void inject_data_packet (tap_packet *pkt, int dst);
57	pcg	1.1
58	pcg	1.26	void send_connect_request (int id);
59	pcg	1.2
60	pcg	1.26	void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
61			bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
62	pcg	1.4
63	pcg	1.2	#if ENABLE_TCP
64	pcg	1.26	void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
65			bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
66	pcg	1.7	#endif
67
68			#if ENABLE_ICMP
69	pcg	1.26	void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
70			bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
71	pcg	1.14	#endif
72
73			#if ENABLE_DNS
74	pcg	1.26	vector<struct dns_snd *> dns_sndpq;
75			sockinfo dns_forwarder;
76	pcg	1.16
77	pcg	1.26	void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
78			void dnsv4_server (struct dns_packet &pkt);
79			void dnsv4_client (struct dns_packet &pkt);
80	pcg	1.21
81	pcg	1.26	bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
82	pcg	1.2	#endif
83	pcg	1.1
84	pcg	1.26	void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
85			bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
86	pcg	1.2
87	pcg	1.26	void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
88			bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
89	pcg	1.1
90	pcg	1.26	vpn ();
91			~vpn ();
92	pcg	1.1
93	pcg	1.26	int setup ();
94	pcg	1.1
95	pcg	1.26	void dump_status ();
96	pcg	1.1
97	pcg	1.26	void script_init_env ();
98			const char *script_if_init ();
99			const char *script_if_up ();
100			};
101	pcg	1.10
102	pcg	1.12	extern vpn network; // THE vpn
103	pcg	1.1
104			#endif
105