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 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
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5 | This file is part of GVPE. |
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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 |
6 | 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 |
7 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
10 | (at your 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, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but 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 |
13 | GNU General Public License for more details. |
15 | GNU General 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 |
16 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
17 | 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 |
18 | */ |
20 | */ |
19 | |
21 | |
20 | #include <cstdio> |
22 | #include <cstdio> |
21 | #include <cstring> |
23 | #include <cstring> |
… | |
… | |
59 | #define ifdebug(subsys) if (0) |
61 | #define ifdebug(subsys) if (0) |
60 | |
62 | |
61 | #define cp() |
63 | #define cp() |
62 | #define lookup_config(config_tree,key) (key) |
64 | #define lookup_config(config_tree,key) (key) |
63 | |
65 | |
64 | #define MTU MAXSIZE |
66 | #define MTU MAX_MTU |
65 | |
67 | |
66 | // BIGGEST hack of 'em all |
68 | // BIGGEST hack of 'em all |
67 | // will be casted to data_packet, due to structural similarity |
69 | // will be casted to data_packet, due to structural similarity |
68 | struct vpn_packet_t : net_packet { |
70 | struct vpn_packet_t : net_packet { |
69 | u8 data[MAXSIZE]; |
71 | u8 data[MAXSIZE]; |
… | |
… | |
89 | |
91 | |
90 | #define netname conf.ifname |
92 | #define netname conf.ifname |
91 | |
93 | |
92 | #if IF_linux |
94 | #if IF_linux |
93 | # include "tincd/linux/device.c" |
95 | # include "tincd/linux/device.c" |
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96 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME hw ether $MAC mtu $MTU"; } |
94 | |
97 | |
95 | #elif IF_freebsd |
98 | #elif IF_freebsd |
96 | # include "tincd/freebsd/device.c" |
99 | # include "tincd/freebsd/device.c" |
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100 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME ether $MAC mtu $MTU"; } |
97 | |
101 | |
98 | #elif IF_netbsd |
102 | #elif IF_netbsd |
99 | #define IF_istun 1 |
103 | # define IF_istun 1 |
100 | # include "tincd/netbsd/device.c" |
104 | # include "tincd/netbsd/device.c" |
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105 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME mtu $MTU"; } |
101 | |
106 | |
102 | #elif IF_openbsd |
107 | #elif IF_openbsd |
103 | #define IF_istun 1 |
108 | # define IF_istun 1 |
104 | # include "tincd/openbsd/device.c" |
109 | # include "tincd/openbsd/device.c" |
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110 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME mtu $MTU"; } |
105 | |
111 | |
106 | #elif IF_solaris |
112 | #elif IF_solaris |
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113 | # define IF_istun 1 |
107 | # include "tincd/solaris/device.c" |
114 | # include "tincd/solaris/device.c" |
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115 | const char * tap_device::if_up () { return ""; } |
108 | |
116 | |
109 | #elif IF_cygwin |
117 | #elif IF_cygwin |
110 | # include "tincd/cygwin/device.c" |
118 | # include "tincd/cygwin/device.c" |
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119 | const char * tap_device::if_up () { return ""; } |
111 | |
120 | |
112 | #elif IF_mingw |
121 | #elif IF_mingw |
113 | # include "tincd/mingw/device.c" |
122 | # include "tincd/mingw/device.c" |
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123 | const char * tap_device::if_up () { return ""; } |
114 | |
124 | |
115 | #elif IF_darwin |
125 | #elif IF_darwin |
116 | #define IF_istun 1 |
126 | # define IF_istun 1 |
117 | # include "tincd/darwin/device.c" |
127 | # include "tincd/darwin/device.c" |
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128 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME ether $MAC mtu $MTU"; } |
118 | |
129 | |
119 | #elif IF_raw_socket |
130 | #elif IF_raw_socket |
120 | #define IF_istun 1 |
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121 | # include "tincd/raw_socket/device.c" |
131 | # include "tincd/raw_socket/device.c" |
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132 | const char * tap_device::if_up () { return "/sbin/ifconfig $IFNAME ether $MAC mtu $MTU"; } |
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133 | |
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134 | #elif IF_uml_socket |
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135 | # include "tincd/uml_socket/device.c" |
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136 | const char * tap_device::if_up () { return 0; } |
122 | |
137 | |
123 | #else |
138 | #else |
124 | # error No interface implementation for your IFTYPE/IFSUBTYPE combination. |
139 | # error No interface implementation for your IFTYPE/IFSUBTYPE combination. |
125 | #endif |
140 | #endif |
126 | |
141 | |
… | |
… | |
134 | return _("tincd compatibility layer"); |
149 | return _("tincd compatibility layer"); |
135 | } |
150 | } |
136 | |
151 | |
137 | tap_device::tap_device () |
152 | tap_device::tap_device () |
138 | { |
153 | { |
139 | if (setup_device ()) |
154 | device = "(null)"; |
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155 | |
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156 | bool ok = setup_device (); |
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157 | |
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158 | if (device_info) |
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159 | device = device_info; |
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160 | |
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161 | if (ok) |
140 | { |
162 | { |
141 | slog (L_DEBUG, _("interface %s initialized"), info ()); |
163 | slog (L_DEBUG, _("interface %s on %s initialized"), info (), device); |
142 | fd = device_fd; |
164 | fd = device_fd; |
143 | strcpy (ifrname, iface); |
165 | strcpy (ifrname, iface); |
144 | } |
166 | } |
145 | else |
167 | else |
146 | { |
168 | { |
147 | slog (L_ERR, _("error while configuring tincd device (%s)"), info ()); |
169 | slog (L_ERR, _("error while configuring tincd device %s on %s"), info (), device); |
148 | exit (1); |
170 | exit (EXIT_FAILURE); |
149 | } |
171 | } |
150 | } |
172 | } |
151 | |
173 | |
152 | tap_device::~tap_device () |
174 | tap_device::~tap_device () |
153 | { |
175 | { |
… | |
… | |
160 | tap_packet *pkt = new tap_packet; |
182 | tap_packet *pkt = new tap_packet; |
161 | |
183 | |
162 | if (!read_packet (reinterpret_cast<vpn_packet_t *>(pkt))) |
184 | if (!read_packet (reinterpret_cast<vpn_packet_t *>(pkt))) |
163 | { |
185 | { |
164 | delete pkt; |
186 | delete pkt; |
165 | slog (L_ERR, _("can't read from to %s %s: %s"), info (), DEFAULT_DEVICE, |
187 | slog (L_ERR, _("can't read from to %s %s: %s"), info (), device, |
166 | strerror (errno)); |
188 | strerror (errno)); |
167 | return 0; |
189 | return 0; |
168 | } |
190 | } |
169 | |
191 | |
170 | #if IF_istun |
192 | #if IF_istun |
… | |
… | |
188 | if ( |
210 | if ( |
189 | #if IF_istun |
211 | #if IF_istun |
190 | ether_emu.tap_to_tun (pkt) && |
212 | ether_emu.tap_to_tun (pkt) && |
191 | #endif |
213 | #endif |
192 | !write_packet (reinterpret_cast<vpn_packet_t *>(pkt))) |
214 | !write_packet (reinterpret_cast<vpn_packet_t *>(pkt))) |
193 | slog (L_ERR, _("can't write to %s %s: %s"), info (), DEFAULT_DEVICE, |
215 | slog (L_ERR, _("can't write to %s %s: %s"), info (), device, |
194 | strerror (errno)); |
216 | strerror (errno)); |
195 | } |
217 | } |
196 | |
218 | |
197 | |
219 | |