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 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:	1.25
Committed:	Sat Nov 10 05:14:22 2007 UTC (16 years, 6 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
Changes since 1.24:	+7 -7 lines
Log Message:	first shot at converting from iom to libev
#	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			{
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	1.25	void event_cb (ev::timer &w, int revents); ev::timer 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	1.25	void tap_ev (ev::io &w, int revents); ev::io 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	1.21	bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
61	pcg	1.4
62	pcg	1.2	#if ENABLE_TCP
63	pcg	1.25	void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
64	pcg	1.6	bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
65	pcg	1.7	#endif
66
67			#if ENABLE_ICMP
68	pcg	1.25	void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
69	pcg	1.7	bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
70	pcg	1.14	#endif
71
72			#if ENABLE_DNS
73	pcg	1.20	vector<struct dns_snd *> dns_sndpq;
74	pcg	1.19	sockinfo dns_forwarder;
75	pcg	1.16
76	pcg	1.25	void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
77	pcg	1.20	void dnsv4_server (struct dns_packet &pkt);
78			void dnsv4_client (struct dns_packet &pkt);
79	pcg	1.21
80			bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
81	pcg	1.2	#endif
82	pcg	1.1
83	pcg	1.25	void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
84	pcg	1.6	bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
85	pcg	1.2
86	pcg	1.25	void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
87	pcg	1.6	bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
88	pcg	1.1
89			vpn ();
90			~vpn ();
91
92			int setup ();
93
94			void dump_status ();
95
96	pcg	1.23	void script_init_env ();
97			const char *script_if_init ();
98	pcg	1.2	const char *script_if_up ();
99	pcg	1.1	};
100	pcg	1.10
101	pcg	1.12	extern vpn network; // THE vpn
102	pcg	1.1
103			#endif
104