/*
device.c -- raw socket
- Copyright (C) 2002 Ivo Timmermans <ivo@o2w.nl>,
- 2002 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
+ 2002-2003 Guus Sliepen <guus@sliepen.eu.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 1.1.2.1 2002/07/18 14:30:45 guus Exp $
+ $Id: device.c,v 1.1.2.7 2003/07/12 17:41:48 guus Exp $
*/
#include "config.h"
#include <fcntl.h>
#include <net/if.h>
#include <unistd.h>
-#include <syslog.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <utils.h>
#include "conf.h"
#include "net.h"
-#include "subnet.h"
+#include "logger.h"
#include "system.h"
int device_total_in = 0;
int device_total_out = 0;
-extern subnet_t mymac;
-
-/*
- open the local ethertap device
-*/
int setup_device(void)
{
- struct ifreq ifr;
- struct sockaddr_ll sa;
-cp
- if(!get_config_string(lookup_config(config_tree, "Interface"), &interface))
- interface = "eth0";
-
- if(!get_config_string(lookup_config(config_tree, "Device"), &device))
- device = interface;
-
- device_info = _("raw socket");
-cp
- if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0)
- {
- syslog(LOG_ERR, _("Could not open %s: %s"), device_info, strerror(errno));
- return -1;
- }
-
- memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ);
- if(ioctl(device_fd, SIOCGIFINDEX, &ifr))
- {
- close(device_fd);
- syslog(LOG_ERR, _("Can't find interface %s: %s"), interface, strerror(errno));
- return -1;
- }
-
- memset(&sa, '0', sizeof(sa));
- sa.sll_family = AF_PACKET;
- sa.sll_protocol = htons(ETH_P_ALL);
- sa.sll_ifindex = ifr.ifr_ifindex;
-
- if(bind(device_fd, (struct sockaddr *)&sa, (socklen_t)sizeof(sa)))
- {
- syslog(LOG_ERR, _("Could not bind to %s: %s"), device, strerror(errno));
- return -1;
- }
-cp
- /* Set default MAC address for ethertap devices */
-
- mymac.type = SUBNET_MAC;
- mymac.net.mac.address.x[0] = 0xfe;
- mymac.net.mac.address.x[1] = 0xfd;
- mymac.net.mac.address.x[2] = 0x00;
- mymac.net.mac.address.x[3] = 0x00;
- mymac.net.mac.address.x[4] = 0x00;
- mymac.net.mac.address.x[5] = 0x00;
-
- syslog(LOG_INFO, _("%s is a %s"), device, device_info);
-cp
- return 0;
+ struct ifreq ifr;
+ struct sockaddr_ll sa;
+
+ cp();
+
+ if(!get_config_string
+ (lookup_config(config_tree, "Interface"), &interface))
+ interface = "eth0";
+
+ if(!get_config_string(lookup_config(config_tree, "Device"), &device))
+ device = interface;
+
+ device_info = _("raw socket");
+
+ if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) {
+ logger(LOG_ERR, _("Could not open %s: %s"), device_info,
+ strerror(errno));
+ return -1;
+ }
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ);
+ if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) {
+ close(device_fd);
+ logger(LOG_ERR, _("Can't find interface %s: %s"), interface,
+ strerror(errno));
+ return -1;
+ }
+
+ memset(&sa, '0', sizeof(sa));
+ sa.sll_family = AF_PACKET;
+ sa.sll_protocol = htons(ETH_P_ALL);
+ 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));
+ return -1;
+ }
+
+ logger(LOG_INFO, _("%s is a %s"), device, device_info);
+
+ return 0;
}
void close_device(void)
{
-cp
- close(device_fd);
+ cp();
+
+ close(device_fd);
}
-/*
- read, encrypt and send data that is
- available through the ethertap device
-*/
int read_packet(vpn_packet_t *packet)
{
- int lenin;
-cp
+ int lenin;
+
+ cp();
- if((lenin = read(device_fd, packet->data, MTU)) <= 0)
- {
- syslog(LOG_ERR, _("Error while reading from %s %s: %s"), device_info, device, strerror(errno));
- return -1;
- }
+ if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+ logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
+ device, strerror(errno));
+ return -1;
+ }
- packet->len = lenin;
+ packet->len = lenin;
- device_total_in += packet->len;
+ device_total_in += packet->len;
- if(debug_lvl >= DEBUG_TRAFFIC)
- {
- syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, device_info);
- }
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
+ device_info);
+ }
- return 0;
-cp
+ return 0;
}
int write_packet(vpn_packet_t *packet)
{
-cp
- if(debug_lvl >= DEBUG_TRAFFIC)
- syslog(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
- packet->len, device_info);
-
- if(write(device_fd, packet->data, packet->len) < 0)
- {
- syslog(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device, strerror(errno));
- return -1;
- }
-
- device_total_out += packet->len;
-cp
- return 0;
+ cp();
+
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
+ packet->len, device_info);
+
+ if(write(device_fd, packet->data, packet->len) < 0) {
+ logger(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device,
+ strerror(errno));
+ return -1;
+ }
+
+ device_total_out += packet->len;
+
+ return 0;
}
void dump_device_stats(void)
{
-cp
- syslog(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
- syslog(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
- syslog(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);
-cp
+ cp();
+
+ 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);
}
projects / tinc / blobdiff