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Comparing gvpe/src/vpn.h (file contents):
Revision 1.2 by pcg, Wed Apr 2 05:15:00 2003 UTC vs.
Revision 1.33 by root, Tue Jan 17 21:38:11 2012 UTC

1/* 1/*
2 vpn.h -- header for vpn.C 2 vpn.h -- header for vpn.C
3 Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
3 4
5 This file is part of GVPE.
6
4 This program is free software; you can redistribute it and/or modify 7 GVPE is free software; you can redistribute it and/or modify it
5 it under the terms of the GNU General Public License as published by 8 under the terms of the GNU General Public License as published by the
6 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
7 (at your option) any later version. 10 option) any later version.
8 11
9 This program is distributed in the hope that it will be useful, 12 This program is distributed in the hope that it will be useful, but
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
12 GNU General Public License for more details. 15 Public License for more details.
13 16
14 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License along
15 along with this program; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
16 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 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.
17*/ 30*/
18 31
19#ifndef VPE_VPN_H__ 32#ifndef GVPE_VPN_H__
20#define VPE_VPN_H__ 33#define GVPE_VPN_H__
21 34
22#include "global.h" 35#include "global.h"
23#include "conf.h" 36#include "conf.h"
24#include "device.h" 37#include "device.h"
25#include "connection.h" 38#include "connection.h"
26 39
27struct vpn 40struct vpn
28 { 41{
29 int udpv4_fd, tcpv4_fd, ipv4_fd; 42 int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd;
43 int udpv4_tos, ipv4_tos, icmpv4_tos, dnsv4_tos;
30 44
31 int events; 45 int events;
32 46
33 enum { 47 enum {
34 EVENT_RECONNECT = 1, 48 EVENT_RECONNECT = 1,
35 EVENT_SHUTDOWN = 2, 49 EVENT_SHUTDOWN = 2,
36 }; 50 };
37 51
38 void event_cb (tstamp &ts); time_watcher event; 52 void event_cb (ev::timer &w, int revents); ev::timer event;
39 53
40 tap_device *tap; 54 tap_device *tap;
41 55
42 typedef vector<connection *> conns_vector; 56 typedef vector<connection *> conns_vector;
43 conns_vector conns; 57 conns_vector conns;
44 58
45 connection *find_router (); 59 // called when any conenction has been established
60 void connection_established (connection *c);
46 61
47 void reconnect_all (); 62 // return true if src can connect directly to dst
48 void shutdown_all (); 63 bool can_direct (conf_node *src, conf_node *dst) const;
49 void connect_request (int id); 64 connection *find_router_for (const connection *dst);
50 65
51 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 66 void reconnect_all ();
67 void shutdown_all ();
52 68
53 void tap_ev (int fd, short revents); io_watcher tap_ev_watcher; 69 void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher;
70 void inject_data_packet (tap_packet *pkt, int dst);
71
72 void send_connect_request (connection *c);
73
74 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
75 bool send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
54 76
55#if ENABLE_TCP 77#if ENABLE_TCP
56 void tcpv4_ev (int fd, short revents); 78 void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
57 void tcpv4_accept (int fd, short revents); io_watcher tcpv4_accept_watcher;
58 void send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos = IPTOS_RELIABILITY); 79 bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
59#endif 80#endif
60 81
61 void udpv4_ev (int fd, short revents); io_watcher udpv4_ev_watcher; 82#if ENABLE_ICMP
83 void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
62 void send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos = IPTOS_RELIABILITY); 84 bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
85#endif
63 86
64 void ipv4_ev (int fd, short revents); io_watcher ipv4_ev_watcher; 87#if ENABLE_DNS
65 void send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos = IPTOS_RELIABILITY); 88 vector<struct dns_snd *> dns_sndpq;
89 sockinfo dns_forwarder;
66 90
67 vpn (); 91 void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
68 ~vpn (); 92 void dnsv4_server (struct dns_packet &pkt);
93 void dnsv4_client (struct dns_packet &pkt);
69 94
70 int setup (); 95 bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
96#endif
71 97
72 void dump_status (); 98 void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
99 bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
73 100
101 void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
102 bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
103
104 vpn ();
105 ~vpn ();
106
107 int setup_socket (u8 prot, int family, int type, int proto);
108 int setup ();
109
110 void dump_status ();
111
112 void script_init_env ();
113 const char *script_if_init ();
74 const char *script_if_up (); 114 const char *script_if_up ();
75 }; 115};
116
117extern vpn network; // THE vpn
76 118
77#endif 119#endif
78 120

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