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/cvs/gvpe/src/device-tincd.C
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Comparing gvpe/src/device-tincd.C (file contents):
Revision 1.1 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.11 by pcg, Thu Sep 30 12:46:16 2004 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) 2003-2004 Marc Lehmann <pcg@goof.com>
3 4
4 This program is free software; you can redistribute it and/or modify 5 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by 6 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 7 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version. 8 (at your option) any later version.
… …
27#include <syslog.h> 28#include <syslog.h>
28#include <fcntl.h> 29#include <fcntl.h>
29 30
30#include "conf.h" 31#include "conf.h"
31 32
33// following headers used by cygwin (maybe others)
34#include "netcompat.h"
35#include <signal.h>
36
37#define xstrdup(strd) strdup(str)
38
39/* make the tincd sources feel comfortable in our environment. */
40/* this was reasonably easy to do. */
32#define routing_mode 1 41#define routing_mode 1
33#define RMODE_ROUTER 0 42#define RMODE_ROUTER 0
34 43
35/* need iso c-90 or ugly workaround :( */ 44#define LOG_TO_L(level) \
36#define logger(level, ...) slog ( \
37 (level) == LOG_ERR ? L_ERR \ 45 (level) == LOG_ERR ? L_ERR \
38 : (level) == LOG_DEBUG ? L_DEBUG \ 46 : (level) == LOG_DEBUG ? L_DEBUG \
39 : (level) == LOG_WARNING ? L_WARN \ 47 : (level) == LOG_WARNING ? L_WARN \
40 : (level) == LOG_INFO ? L_INFO \ 48 : (level) == LOG_INFO ? L_INFO \
41 : L_NOTICE, __VA_ARGS__) 49 : L_NOTICE
50
51#if __STDC_VERSION__ > 199900
52# define logger(level, ...) slog (LOG_TO_L(level), __VA_ARGS__)
53#elif __GNUC__
54# define logger(level, args...) slog (LOG_TO_L(level), ## args)
55#else
56# error either need ISO-C 99 compliant compiler or gcc.
57#endif
42 58
43#define ifdebug(subsys) if (0) 59#define ifdebug(subsys) if (0)
44 60
45#define cp() 61#define cp()
46#define lookup_config(config_tree,key) (key) 62#define lookup_config(config_tree,key) (key)
… …
51// will be casted to data_packet, due to structural similarity 67// will be casted to data_packet, due to structural similarity
52struct vpn_packet_t : net_packet { 68struct vpn_packet_t : net_packet {
53 u8 data[MAXSIZE]; 69 u8 data[MAXSIZE];
54}; 70};
55 71
56static tap_device *self;
57
58static bool overwrite_mac; 72static bool overwrite_mac;
59 73
60static bool 74static bool
61get_config_string(const char *key, char **res) 75get_config_string(const char *key, char **res)
62{ 76{
… …
75 89
76#define netname conf.ifname 90#define netname conf.ifname
77 91
78#if IF_linux 92#if IF_linux
79# include "tincd/linux/device.c" 93# include "tincd/linux/device.c"
94
80#elif IF_freebsd 95#elif IF_freebsd
81# include "tincd/freebsd/device.c" 96# include "tincd/freebsd/device.c"
97
82#elif IF_netbsd 98#elif IF_netbsd
99# define IF_istun 1
83# include "tincd/netbsd/device.c" 100# include "tincd/netbsd/device.c"
101
102#elif IF_openbsd
103# define IF_istun 1
104# include "tincd/openbsd/device.c"
105
84#elif IF_solaris 106#elif IF_solaris
107# define IF_istun 1
85# include "tincd/solaris/device.c" 108# include "tincd/solaris/device.c"
109
86#elif IF_cygwin 110#elif IF_cygwin
87# include "tincd/cygwin/device.c" 111# include "tincd/cygwin/device.c"
112
88#elif IF_mingw 113#elif IF_mingw
89# include "tincd/mingw/device.c" 114# include "tincd/mingw/device.c"
115
90#elif IF_darwin 116#elif IF_darwin
117# define IF_istun 1
91# include "tincd/darwin/device.c" 118# include "tincd/darwin/device.c"
119
92#elif IF_raw_socket 120#elif IF_raw_socket
121# define IF_istun 1
93# include "tincd/raw_socket/device.c" 122# include "tincd/raw_socket/device.c"
123
94#else 124#else
95# error No interface implementation for your IFTYPE/IFSUBTYPE combination. 125# error No interface implementation for your IFTYPE/IFSUBTYPE combination.
96#endif 126#endif
97 127
128#if IF_istun
129# include "ether_emu.C"
130#endif
131
98const char * 132const char *
99tap_device::info () 133tap_device::info ()
100{ 134{
101 return _("tincd compatibility layer"); 135 return _("tincd compatibility layer");
102} 136}
103 137
104tap_device::tap_device () 138tap_device::tap_device ()
105{ 139{
106 self = this; 140 device = "(null)";
107 141
108 if (setup_device ()) 142 if (setup_device ())
109 { 143 {
110 //slog (L_DEBUG, _("%s is a %s"), device, info ()); 144 slog (L_DEBUG, _("interface %s on %s initialized"), info (), device);
111 fd = device_fd; 145 fd = device_fd;
112 strcpy (ifrname, iface); 146 strcpy (ifrname, iface);
113 } 147 }
114 else 148 else
115 { 149 {
116 slog (L_ERR, _("error while configuring tincd device (%s/%s)"), device, info ()); 150 slog (L_ERR, _("error while configuring tincd device %s on %s"), info (), device);
117 exit (1); 151 exit (EXIT_FAILURE);
118 } 152 }
119} 153}
120 154
121tap_device::~tap_device () 155tap_device::~tap_device ()
122{ 156{
… …
134 slog (L_ERR, _("can't read from to %s %s: %s"), info (), DEFAULT_DEVICE, 168 slog (L_ERR, _("can't read from to %s %s: %s"), info (), DEFAULT_DEVICE,
135 strerror (errno)); 169 strerror (errno));
136 return 0; 170 return 0;
137 } 171 }
138 172
173#if IF_istun
174 // assume ipv4
175 (*pkt)[12] = 0x08;
176 (*pkt)[13] = 0x00;
177
178 if (!ether_emu.tun_to_tap (pkt))
179 {
180 delete pkt;
181 return 0;
182 }
183#endif
184
139 return pkt; 185 return pkt;
140} 186}
141 187
142void 188void
143tap_device::send (tap_packet *pkt) 189tap_device::send (tap_packet *pkt)
144{ 190{
191 if (
192#if IF_istun
193 ether_emu.tap_to_tun (pkt) &&
194#endif
145 if (!write_packet (reinterpret_cast<vpn_packet_t *>(pkt))) 195 !write_packet (reinterpret_cast<vpn_packet_t *>(pkt)))
146 slog (L_ERR, _("can't write to %s %s: %s"), info (), DEFAULT_DEVICE, 196 slog (L_ERR, _("can't write to %s %s: %s"), info (), DEFAULT_DEVICE,
147 strerror (errno)); 197 strerror (errno));
148} 198}
149 199
150 200

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