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/cvs/gvpe/src/vpn.h
Revision: 1.28
Committed: Thu Aug 7 17:54:27 2008 UTC (15 years, 10 months ago) by pcg
Content type: text/plain
Branch: MAIN
Changes since 1.27: +24 -14 lines
Log Message:
update to gplv3, finally

File Contents

# Content
1 /*
2 vpn.h -- header for vpn.C
3 Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4
5 This file is part of GVPE.
6
7 GVPE is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15 Public License for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, see <http://www.gnu.org/licenses/>.
19
20 Additional permission under GNU GPL version 3 section 7
21
22 If you modify this Program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a modified
24 version of that library), containing parts covered by the terms of the
25 OpenSSL or SSLeay licenses, the licensors of this Program grant you
26 additional permission to convey the resulting work. Corresponding
27 Source for a non-source form of such a combination shall include the
28 source code for the parts of OpenSSL used as well as that of the
29 covered work.
30 */
31
32 #ifndef GVPE_VPN_H__
33 #define GVPE_VPN_H__
34
35 #include "global.h"
36 #include "conf.h"
37 #include "device.h"
38 #include "connection.h"
39
40 struct vpn
41 {
42 int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd;
43 int udpv4_tos, ipv4_tos, icmpv4_tos, dnsv4_tos;
44
45 int events;
46
47 enum {
48 EVENT_RECONNECT = 1,
49 EVENT_SHUTDOWN = 2,
50 };
51
52 void event_cb (ev::timer &w, int revents); ev::timer event;
53
54 tap_device *tap;
55
56 typedef vector<connection *> conns_vector;
57 conns_vector conns;
58
59 connection *find_router ();
60 connection *find_forwarder ();
61
62 void reconnect_all ();
63 void shutdown_all ();
64
65 void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher;
66 void inject_data_packet (tap_packet *pkt, int dst);
67
68 void send_connect_request (int id);
69
70 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
71 bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
72
73 #if ENABLE_TCP
74 void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
75 bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
76 #endif
77
78 #if ENABLE_ICMP
79 void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
80 bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
81 #endif
82
83 #if ENABLE_DNS
84 vector<struct dns_snd *> dns_sndpq;
85 sockinfo dns_forwarder;
86
87 void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
88 void dnsv4_server (struct dns_packet &pkt);
89 void dnsv4_client (struct dns_packet &pkt);
90
91 bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
92 #endif
93
94 void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
95 bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
96
97 void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
98 bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
99
100 vpn ();
101 ~vpn ();
102
103 int setup ();
104
105 void dump_status ();
106
107 void script_init_env ();
108 const char *script_if_init ();
109 const char *script_if_up ();
110 };
111
112 extern vpn network; // THE vpn
113
114 #endif
115