/*
device.c -- raw socket
- Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
- 2002-2003 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2002-2005 Ivo Timmermans,
+ 2002-2006 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 1.1.2.9 2003/07/31 11:31:51 guus Exp $
+ $Id$
*/
-#include "config.h"
-
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <net/if.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
+#include "system.h"
+
#include <netpacket/packet.h>
-#include <net/ethernet.h>
-#include <utils.h>
#include "conf.h"
#include "net.h"
#include "logger.h"
-
-#include "system.h"
+#include "utils.h"
+#include "route.h"
int device_fd = -1;
char *device;
-char *interface;
+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;
struct sockaddr_ll sa;
cp();
if(!get_config_string
- (lookup_config(config_tree, "Interface"), &interface))
- interface = "eth0";
+ (lookup_config(config_tree, "Interface"), &iface))
+ iface = "eth0";
if(!get_config_string(lookup_config(config_tree, "Device"), &device))
- device = interface;
+ device = iface;
device_info = _("raw socket");
}
memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ);
+ strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) {
close(device_fd);
- logger(LOG_ERR, _("Can't find interface %s: %s"), interface,
+ logger(LOG_ERR, _("Can't find interface %s: %s"), iface,
strerror(errno));
return false;
}
sa.sll_ifindex = ifr.ifr_ifindex;
if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof(sa))) {
- logger(LOG_ERR, _("Could not bind to %s: %s"), device, strerror(errno));
+ logger(LOG_ERR, _("Could not bind %s to %s: %s"), device, iface, strerror(errno));
return false;
}
return true;
}
-void close_device(void)
-{
+void close_device(void) {
cp();
close(device_fd);
}
-bool read_packet(vpn_packet_t *packet)
-{
- int lenin;
+bool read_packet(vpn_packet_t *packet) {
+ int inlen;
cp();
- if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+ if((inlen = read(device_fd, packet->data, MTU)) <= 0) {
logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
device, strerror(errno));
return false;
}
- packet->len = lenin;
+ packet->len = inlen;
device_total_in += packet->len;
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);