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Comparing gvpe/src/vpn.h (file contents):
Revision 1.16 by pcg, Wed Mar 2 05:49:31 2005 UTC vs.
Revision 1.34 by root, Tue Dec 4 10:29:43 2012 UTC

1/* 1/*
2 vpn.h -- header for vpn.C 2 vpn.h -- header for vpn.C
3 Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> 3 Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4 4
5 This file is part of GVPE.
6
5 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
6 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
7 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
8 (at your option) any later version. 10 option) any later version.
9 11
10 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
11 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13 GNU General Public License for more details. 15 Public License for more details.
14 16
15 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
16 along with this program; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
17 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.
18*/ 30*/
19 31
20#ifndef VPE_VPN_H__ 32#ifndef GVPE_VPN_H__
21#define VPE_VPN_H__ 33#define GVPE_VPN_H__
22 34
23#include "global.h" 35#include "global.h"
24#include "conf.h" 36#include "conf.h"
25#include "device.h" 37#include "device.h"
26#include "connection.h" 38#include "connection.h"
27 39
28struct vpn 40struct vpn
29 { 41{
30 int udpv4_fd, tcpv4_fd, ipv4_fd, icmpv4_fd, dnsv4_fd; 42 int udpv4_fd , tcpv4_fd, ipv4_fd , icmpv4_fd , dnsv4_fd;
43 int udpv4_tos, ipv4_tos, icmpv4_tos, dnsv4_tos;
31 44
32 int events; 45 int events;
33 46
34 enum { 47 enum {
35 EVENT_RECONNECT = 1, 48 EVENT_RECONNECT = 1,
36 EVENT_SHUTDOWN = 2, 49 EVENT_SHUTDOWN = 2,
37 }; 50 };
38 51
39 void event_cb (time_watcher &w); time_watcher event; 52 void event_cb (ev::timer &w, int revents); ev::timer event;
40 53
41 tap_device *tap; 54 tap_device *tap;
42 55
43 typedef vector<connection *> conns_vector; 56 typedef vector<connection *> conns_vector;
44 conns_vector conns; 57 conns_vector conns;
45 58
46 connection *find_router (); 59 // called when any conenction has been established
47 connection *find_forwarder (); 60 void connection_established (connection *c);
48 61
49 void reconnect_all (); 62 // return true if src can connect directly to dst
50 void shutdown_all (); 63 bool can_direct (conf_node *src, conf_node *dst) const;
64 connection *find_router_for (const connection *dst);
51 65
52 void tap_ev (io_watcher &w, short revents); io_watcher tap_ev_watcher; 66 void reconnect_all ();
53 void inject_data_packet (tap_packet *pkt, int dst); 67 void shutdown_all ();
54 68
55 void send_connect_request (int id); 69 void tap_ev (ev::io &w, int revents); ev::io tap_ev_watcher;
70 void inject_data_packet (tap_packet *pkt, int dst);
56 71
72 void send_connect_request (connection *c);
73
57 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 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);
58 76
59#if ENABLE_TCP 77#if ENABLE_TCP
60 void tcpv4_ev (io_watcher &w, short revents); io_watcher tcpv4_ev_watcher; 78 void tcpv4_ev (ev::io &w, int revents); ev::io tcpv4_ev_watcher;
61 bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); 79 bool send_tcpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
62#endif 80#endif
63 81
64#if ENABLE_ICMP 82#if ENABLE_ICMP
65 void icmpv4_ev (io_watcher &w, short revents); io_watcher icmpv4_ev_watcher; 83 void icmpv4_ev (ev::io &w, int revents); ev::io icmpv4_ev_watcher;
66 bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); 84 bool send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
67#endif 85#endif
68 86
69#if ENABLE_DNS 87#if ENABLE_DNS
70 vector<struct dns_rep *> dns_rcvpq;
71 vector<struct dns_req *> dns_sndpq; 88 vector<struct dns_snd *> dns_sndpq;
89 sockinfo dns_forwarder;
72 90
73 void dnsv4_ev (io_watcher &w, short revents); io_watcher dnsv4_ev_watcher; 91 void dnsv4_ev (ev::io &w, int revents); ev::io dnsv4_ev_watcher;
74 struct dns_packet *dnsv4_server (struct dns_packet *pkt); 92 void dnsv4_server (struct dns_packet &pkt);
75 void dnsv4_client (struct dns_packet *pkt); 93 void dnsv4_client (struct dns_packet &pkt);
94
95 bool send_dnsv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
76#endif 96#endif
77 97
78 void udpv4_ev (io_watcher &w, short revents); io_watcher udpv4_ev_watcher; 98 void udpv4_ev (ev::io &w, int revents); ev::io udpv4_ev_watcher;
79 bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); 99 bool send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
80 100
81 void ipv4_ev (io_watcher &w, short revents); io_watcher ipv4_ev_watcher; 101 void ipv4_ev (ev::io &w, int revents); ev::io ipv4_ev_watcher;
82 bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos); 102 bool send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos);
83 103
84 vpn (); 104 vpn ();
85 ~vpn (); 105 ~vpn ();
86 106
107 int setup_socket (u8 prot, int family, int type, int proto);
87 int setup (); 108 int setup ();
109 bool drop_privileges ();
88 110
89 void dump_status (); 111 void dump_status ();
90 112
113 void script_init_env ();
114 const char *script_if_init ();
91 const char *script_if_up (); 115 const char *script_if_up ();
92 }; 116};
93 117
94extern vpn network; // THE vpn 118extern vpn network; // THE vpn
95 119
96#endif 120#endif
97 121

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