/*
device.c -- Interaction with Linux ethertap and tun/tap device
Copyright (C) 2001-2005 Ivo Timmermans,
- 2001-2006 Guus Sliepen <guus@tinc-vpn.org>
+ 2001-2009 Guus Sliepen <guus@tinc-vpn.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "system.h"
static int device_total_in = 0;
static int device_total_out = 0;
-bool setup_device(void)
-{
+bool setup_device(void) {
struct ifreq ifr;
- cp();
-
if(!get_config_string(lookup_config(config_tree, "Device"), &device))
device = xstrdup(DEFAULT_DEVICE);
if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
#ifdef HAVE_LINUX_IF_TUN_H
- iface = xstrdup(netname);
+ if (netname != NULL)
+ iface = xstrdup(netname);
#else
iface = xstrdup(rindex(device, '/') ? rindex(device, '/') + 1 : device);
#endif
return true;
}
-void close_device(void)
-{
- cp();
-
+void close_device(void) {
close(device_fd);
free(device);
free(iface);
}
-bool read_packet(vpn_packet_t *packet)
-{
+bool read_packet(vpn_packet_t *packet) {
int lenin;
- cp();
-
switch(device_type) {
case DEVICE_TYPE_TUN:
lenin = read(device_fd, packet->data + 10, MTU - 10);
return true;
}
-bool write_packet(vpn_packet_t *packet)
-{
- cp();
-
+bool write_packet(vpn_packet_t *packet) {
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
packet->len, device_info);
return true;
}
-void dump_device_stats(void)
-{
- cp();
-
+void dump_device_stats(void) {
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
logger(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
logger(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);