2 device.c -- Stub for Cygwin environment
3 Copyright (C) 2002 Ivo Timmermans <ivo@o2w.nl>,
4 2002 Guus Sliepen <guus@sliepen.eu.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 $Id: device.c,v 1.1.2.4 2002/09/10 21:29:42 guus Exp $
27 #include <sys/types.h>
47 int device_total_in = 0;
48 int device_total_out = 0;
50 extern subnet_t mymac;
52 int setup_device(void)
58 if(!get_config_string(lookup_config(config_tree, "Device"), &device))
59 device = DEFAULT_DEVICE;
61 if(!get_config_string(lookup_config(config_tree, "Interface"), &interface))
62 interface = rindex(device, '/') ? rindex(device, '/') + 1 : device;
64 if((device_fd = open(device, O_RDWR | O_NONBLOCK)) < 0) {
65 syslog(LOG_ERR, _("Could not open %s: %s"), device, strerror(errno));
69 /* Set default MAC address for ethertap devices */
70 mymac.type = SUBNET_MAC;
71 mymac.net.mac.address.x[0] = 0xfe;
72 mymac.net.mac.address.x[1] = 0xfd;
73 mymac.net.mac.address.x[2] = 0x00;
74 mymac.net.mac.address.x[3] = 0x00;
75 mymac.net.mac.address.x[4] = 0x00;
76 mymac.net.mac.address.x[5] = 0x00;
78 device_info = _("Stub device for Cygwin environment");
80 syslog(LOG_INFO, _("%s is a %s"), device, device_info);
85 void close_device(void)
92 int read_packet(vpn_packet_t *packet)
98 if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
99 syslog(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
100 device, strerror(errno));
106 device_total_in += packet->len;
108 if(debug_lvl >= DEBUG_TRAFFIC) {
109 syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
116 int write_packet(vpn_packet_t *packet)
120 if(debug_lvl >= DEBUG_TRAFFIC)
121 syslog(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
122 packet->len, device_info);
124 if(write(device_fd, packet->data, packet->len) < 0) {
125 syslog(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device,
130 device_total_out += packet->len;
135 void dump_device_stats(void)
139 syslog(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
140 syslog(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
141 syslog(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);