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. 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef VPE_VPN_H__
#define VPE_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 events;

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

    void event_cb (time_watcher &w); time_watcher 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 (io_watcher &w, short revents); io_watcher 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);

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

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

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

    void dnsv4_ev (io_watcher &w, short revents); io_watcher dnsv4_ev_watcher;
    struct dns_packet *dnsv4_server (struct dns_packet *pkt);
    void dnsv4_client (struct dns_packet *pkt);
#endif

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

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

    vpn ();
    ~vpn ();

    int setup ();

    void dump_status ();

    const char *script_if_up ();
  };

extern vpn network; // THE vpn

#endif

Revision:	1.19
Committed:	Fri Mar 4 04:52:38 2005 UTC (19 years, 2 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
Changes since 1.18:	+1 -0 lines
Log Message:	* empty log message *
#	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	1.1	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20			*/
21
22			#ifndef VPE_VPN_H__
23			#define VPE_VPN_H__
24
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			{
32	pcg	1.14	int udpv4_fd, tcpv4_fd, ipv4_fd, icmpv4_fd, dnsv4_fd;
33	pcg	1.1
34			int events;
35
36			enum {
37			EVENT_RECONNECT = 1,
38			EVENT_SHUTDOWN = 2,
39			};
40
41	pcg	1.3	void event_cb (time_watcher &w); time_watcher event;
42	pcg	1.1
43			tap_device *tap;
44
45			typedef vector<connection *> conns_vector;
46			conns_vector conns;
47
48			connection *find_router ();
49	pcg	1.8	connection *find_forwarder ();
50	pcg	1.1
51			void reconnect_all ();
52			void shutdown_all ();
53
54	pcg	1.6	void tap_ev (io_watcher &w, short revents); io_watcher tap_ev_watcher;
55	pcg	1.10	void inject_data_packet (tap_packet *pkt, int dst);
56	pcg	1.2
57	pcg	1.6	void send_connect_request (int id);
58	pcg	1.1
59	pcg	1.6	void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
60	pcg	1.4
61	pcg	1.2	#if ENABLE_TCP
62	pcg	1.3	void tcpv4_ev (io_watcher &w, short revents); io_watcher tcpv4_ev_watcher;
63	pcg	1.6	bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
64	pcg	1.7	#endif
65
66			#if ENABLE_ICMP
67			void icmpv4_ev (io_watcher &w, short revents); io_watcher icmpv4_ev_watcher;
68			bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
69	pcg	1.14	#endif
70
71			#if ENABLE_DNS
72	pcg	1.16	vector<struct dns_req *> dns_sndpq;
73	pcg	1.19	sockinfo dns_forwarder;
74	pcg	1.16
75	pcg	1.14	void dnsv4_ev (io_watcher &w, short revents); io_watcher dnsv4_ev_watcher;
76	pcg	1.16	struct dns_packet dnsv4_server (struct dns_packet pkt);
77			void dnsv4_client (struct dns_packet *pkt);
78	pcg	1.2	#endif
79	pcg	1.1
80	pcg	1.3	void udpv4_ev (io_watcher &w, short revents); io_watcher udpv4_ev_watcher;
81	pcg	1.6	bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
82	pcg	1.2
83	pcg	1.3	void ipv4_ev (io_watcher &w, short revents); io_watcher ipv4_ev_watcher;
84	pcg	1.6	bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
85	pcg	1.1
86			vpn ();
87			~vpn ();
88
89			int setup ();
90
91			void dump_status ();
92
93	pcg	1.2	const char *script_if_up ();
94	pcg	1.1	};
95	pcg	1.10
96	pcg	1.12	extern vpn network; // THE vpn
97	pcg	1.1
98			#endif
99