/*
device.c -- Interaction with Linux ethertap and tun/tap device
- Copyright (C) 2001-2003 Ivo Timmermans <ivo@o2w.nl>,
- 2001-2003 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2001-2005 Ivo Timmermans,
+ 2001-2006 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: device.c,v 1.1.2.20 2003/07/22 20:55:21 guus Exp $
+ $Id$
*/
#include "system.h"
-#ifdef HAVE_TUNTAP
-#ifdef LINUX_IF_TUN_H
-#include LINUX_IF_TUN_H
-#else
+#ifdef HAVE_LINUX_IF_TUN_H
#include <linux/if_tun.h>
-#endif
#define DEFAULT_DEVICE "/dev/net/tun"
#else
#define DEFAULT_DEVICE "/dev/tap0"
} device_type_t;
int device_fd = -1;
-device_type_t device_type;
+static device_type_t device_type;
char *device;
char *iface;
char ifrname[IFNAMSIZ];
char *device_info;
-int device_total_in = 0;
-int device_total_out = 0;
+static int device_total_in = 0;
+static int device_total_out = 0;
-bool setup_device(void)
-{
+bool setup_device(void) {
struct ifreq ifr;
cp();
device = DEFAULT_DEVICE;
if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
-#ifdef HAVE_TUNTAP
+#ifdef HAVE_LINUX_IF_TUN_H
iface = netname;
#else
iface = rindex(device, '/') ? rindex(device, '/') + 1 : device;
return false;
}
-#ifdef HAVE_TUNTAP
+#ifdef HAVE_LINUX_IF_TUN_H
/* Ok now check if this is an old ethertap or a new tun/tap thingie */
memset(&ifr, 0, sizeof(ifr));
if(iface)
strncpy(ifr.ifr_name, iface, IFNAMSIZ);
- if(!ioctl(device_fd, TUNSETIFF, (void *) &ifr)) {
+ if(!ioctl(device_fd, TUNSETIFF, &ifr)) {
strncpy(ifrname, ifr.ifr_name, IFNAMSIZ);
iface = ifrname;
- } else if(!ioctl(device_fd, (('T' << 8) | 202), (void *) &ifr)) {
+ } else if(!ioctl(device_fd, (('T' << 8) | 202), &ifr)) {
logger(LOG_WARNING, _("Old ioctl() request was needed for %s"), device);
strncpy(ifrname, ifr.ifr_name, IFNAMSIZ);
iface = ifrname;
return true;
}
-void close_device(void)
-{
+void close_device(void) {
cp();
close(device_fd);
}
-bool read_packet(vpn_packet_t *packet)
-{
+bool read_packet(vpn_packet_t *packet) {
int lenin;
cp();
return true;
}
-bool write_packet(vpn_packet_t *packet)
-{
+bool write_packet(vpn_packet_t *packet) {
cp();
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
return true;
}
-void dump_device_stats(void)
-{
+void dump_device_stats(void) {
cp();
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);