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/cvs/gvpe/src/device-tincd.C
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Comparing gvpe/src/device-tincd.C (file contents):
Revision 1.2 by pcg, Tue Oct 14 03:59:32 2003 UTC vs.
Revision 1.14 by pcg, Wed Mar 23 17:03:58 2005 UTC

1/* 1/*
2 device-tincd.C -- include one of the tincd low level implementations. 2 device-tincd.C -- include one of the tincd low level implementations.
3 Copyright (C) 2003-2005 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
5 it under the terms of the GNU General Public License as published by 8 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or 9 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version. 10 (at your 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,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 but 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
12 GNU General Public License for more details. 15 GNU General 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
15 along with this program; if not, write to the Free Software 18 along with gvpe; if not, write to the Free Software
16 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/ 20*/
18 21
19#include <cstdio> 22#include <cstdio>
20#include <cstring> 23#include <cstring>
… …
27#include <syslog.h> 30#include <syslog.h>
28#include <fcntl.h> 31#include <fcntl.h>
29 32
30#include "conf.h" 33#include "conf.h"
31 34
35// following headers used by cygwin (maybe others)
36#include "netcompat.h"
37#include <signal.h>
38
39#define xstrdup(strd) strdup(str)
40
32/* make the tincd sources feel comfortable in our environment. */ 41/* make the tincd sources feel comfortable in our environment. */
33/* this was reasonably easy to do. */ 42/* this was reasonably easy to do. */
34#define routing_mode 1 43#define routing_mode 1
35#define RMODE_ROUTER 0 44#define RMODE_ROUTER 0
36 45
… …
52#define ifdebug(subsys) if (0) 61#define ifdebug(subsys) if (0)
53 62
54#define cp() 63#define cp()
55#define lookup_config(config_tree,key) (key) 64#define lookup_config(config_tree,key) (key)
56 65
57#define MTU MAXSIZE 66#define MTU MAX_MTU
58 67
59// BIGGEST hack of 'em all 68// BIGGEST hack of 'em all
60// will be casted to data_packet, due to structural similarity 69// will be casted to data_packet, due to structural similarity
61struct vpn_packet_t : net_packet { 70struct vpn_packet_t : net_packet {
62 u8 data[MAXSIZE]; 71 u8 data[MAXSIZE];
63}; 72};
64 73
65static tap_device *self;
66
67static bool overwrite_mac; 74static bool overwrite_mac;
68 75
69static bool 76static bool
70get_config_string(const char *key, char **res) 77get_config_string(const char *key, char **res)
71{ 78{
… …
84 91
85#define netname conf.ifname 92#define netname conf.ifname
86 93
87#if IF_linux 94#if IF_linux
88# include "tincd/linux/device.c" 95# include "tincd/linux/device.c"
96
89#elif IF_freebsd 97#elif IF_freebsd
90# include "tincd/freebsd/device.c" 98# include "tincd/freebsd/device.c"
99
91#elif IF_netbsd 100#elif IF_netbsd
101# define IF_istun 1
92# include "tincd/netbsd/device.c" 102# include "tincd/netbsd/device.c"
103
104#elif IF_openbsd
105# define IF_istun 1
106# include "tincd/openbsd/device.c"
107
93#elif IF_solaris 108#elif IF_solaris
109# define IF_istun 1
94# include "tincd/solaris/device.c" 110# include "tincd/solaris/device.c"
111
95#elif IF_cygwin 112#elif IF_cygwin
96# include "tincd/cygwin/device.c" 113# include "tincd/cygwin/device.c"
114
97#elif IF_mingw 115#elif IF_mingw
98# include "tincd/mingw/device.c" 116# include "tincd/mingw/device.c"
117
99#elif IF_darwin 118#elif IF_darwin
119# define IF_istun 1
100# include "tincd/darwin/device.c" 120# include "tincd/darwin/device.c"
121
101#elif IF_raw_socket 122#elif IF_raw_socket
123# define IF_istun 1
102# include "tincd/raw_socket/device.c" 124# include "tincd/raw_socket/device.c"
125
126#elif IF_uml_socket
127# include "tincd/uml_socket/device.c"
128
103#else 129#else
104# error No interface implementation for your IFTYPE/IFSUBTYPE combination. 130# error No interface implementation for your IFTYPE/IFSUBTYPE combination.
105#endif 131#endif
106 132
133#if IF_istun
134# include "ether_emu.C"
135#endif
136
107const char * 137const char *
108tap_device::info () 138tap_device::info ()
109{ 139{
110 return _("tincd compatibility layer"); 140 return _("tincd compatibility layer");
111} 141}
112 142
113tap_device::tap_device () 143tap_device::tap_device ()
114{ 144{
115 self = this; 145 device = "(null)";
116 146
117 if (setup_device ()) 147 bool ok = setup_device ();
148
149 if (device_info)
150 device = device_info;
151
152 if (ok)
118 { 153 {
119 //slog (L_DEBUG, _("%s is a %s"), device, info ()); 154 slog (L_DEBUG, _("interface %s on %s initialized"), info (), device);
120 fd = device_fd; 155 fd = device_fd;
121 strcpy (ifrname, iface); 156 strcpy (ifrname, iface);
122 } 157 }
123 else 158 else
124 { 159 {
125 slog (L_ERR, _("error while configuring tincd device (%s/%s)"), device, info ()); 160 slog (L_ERR, _("error while configuring tincd device %s on %s"), info (), device);
126 exit (1); 161 exit (EXIT_FAILURE);
127 } 162 }
128} 163}
129 164
130tap_device::~tap_device () 165tap_device::~tap_device ()
131{ 166{
… …
138 tap_packet *pkt = new tap_packet; 173 tap_packet *pkt = new tap_packet;
139 174
140 if (!read_packet (reinterpret_cast<vpn_packet_t *>(pkt))) 175 if (!read_packet (reinterpret_cast<vpn_packet_t *>(pkt)))
141 { 176 {
142 delete pkt; 177 delete pkt;
143 slog (L_ERR, _("can't read from to %s %s: %s"), info (), DEFAULT_DEVICE, 178 slog (L_ERR, _("can't read from to %s %s: %s"), info (), device,
144 strerror (errno)); 179 strerror (errno));
145 return 0; 180 return 0;
146 } 181 }
147 182
183#if IF_istun
184 // assume ipv4
185 (*pkt)[12] = 0x08;
186 (*pkt)[13] = 0x00;
187
188 if (!ether_emu.tun_to_tap (pkt))
189 {
190 delete pkt;
191 return 0;
192 }
193#endif
194
148 return pkt; 195 return pkt;
149} 196}
150 197
151void 198void
152tap_device::send (tap_packet *pkt) 199tap_device::send (tap_packet *pkt)
153{ 200{
201 if (
202#if IF_istun
203 ether_emu.tap_to_tun (pkt) &&
204#endif
154 if (!write_packet (reinterpret_cast<vpn_packet_t *>(pkt))) 205 !write_packet (reinterpret_cast<vpn_packet_t *>(pkt)))
155 slog (L_ERR, _("can't write to %s %s: %s"), info (), DEFAULT_DEVICE, 206 slog (L_ERR, _("can't write to %s %s: %s"), info (), device,
156 strerror (errno)); 207 strerror (errno));
157} 208}
158 209
159 210

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