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 1.1.2.2 2002/09/09 21:25:28 guus Exp $
*/
#include "config.h"
*/
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");
+ 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;
}
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 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)
- {
- syslog(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);
+ }
- if(debug_lvl >= DEBUG_TRAFFIC)
- {
- syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, device_info);
- }
+ return 0;
+cp}
- return 0;
-cp
-}
-
-int write_packet(vpn_packet_t *packet)
+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 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;
}
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 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}
projects / oweals / tinc.git / blobdiff