/*
device.c -- Interaction with Solaris tun device
- Copyright (C) 2001 Ivo Timmermans <itimmermans@bigfoot.com>,
- 2001 Guus Sliepen <guus@sliepen.warande.net>
+ Copyright (C) 2001-2002 Ivo Timmermans <itimmermans@bigfoot.com>,
+ 2001-2002 Guus Sliepen <guus@sliepen.warande.net>
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 2001/10/12 15:33:21 guus Exp $
+ $Id: device.c,v 1.1.2.7 2002/02/18 16:25:19 guus Exp $
*/
-#include <sys/sockio.h>
+
+#include "config.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <string.h>
+#include <sys/ioctl.h>
#include <sys/stropts.h>
+#include <sys/sockio.h>
#include <net/if_tun.h>
#define DEFAULT_DEVICE "/dev/tun"
+#include <utils.h>
+#include "conf.h"
+#include "net.h"
+#include "subnet.h"
+
+#include "system.h"
+
int device_fd = -1;
int device_type;
-char *device_fname;
-char *device_info;
+char *device = NULL;
+char *interface = NULL;
+char ifrname[IFNAMSIZ];
+char *device_info = NULL;
int device_total_in = 0;
int device_total_out = 0;
+subnet_t mymac;
+
int setup_device(void)
{
int ip_fd = -1, if_fd = -1;
char *ptr;
cp
- if(!get_config_string(lookup_config(config_tree, "Device"), &device_fname)))
- device_fname = DEFAULT_DEVICE;
+ if(!get_config_string(lookup_config(config_tree, "Device"), &device))
+ device = DEFAULT_DEVICE;
cp
- if((device_fd = open(device_fname, O_RDWR | O_NONBLOCK)) < 0)
+ if((device_fd = open(device, O_RDWR | O_NONBLOCK)) < 0)
{
- syslog(LOG_ERR, _("Could not open %s: %m"), device_fname);
+ syslog(LOG_ERR, _("Could not open %s: %s"), device, strerror(errno));
return -1;
}
cp
ppa = 0;
- ptr = fname;
+ ptr = device;
while(*ptr && !isdigit((int)*ptr)) ptr++;
ppa = atoi(ptr);
if( (ip_fd = open("/dev/ip", O_RDWR, 0)) < 0){
- syslog(LOG_ERR, _("Could not open /dev/ip: %m"));
+ syslog(LOG_ERR, _("Could not open /dev/ip: %s"), strerror(errno));
return -1;
}
/* Assign a new PPA and get its unit number. */
- if( (ppa = ioctl(fd, TUNNEWPPA, ppa)) < 0){
- syslog(LOG_ERR, _("Can't assign new interface: %m"));
+ if( (ppa = ioctl(device_fd, TUNNEWPPA, ppa)) < 0){
+ syslog(LOG_ERR, _("Can't assign new interface: %s"), strerror(errno));
return -1;
}
- if( (if_fd = open(fname, O_RDWR, 0)) < 0){
- syslog(LOG_ERR, _("Could not open %s twice: %m"), fname);
+ if( (if_fd = open(device, O_RDWR, 0)) < 0){
+ syslog(LOG_ERR, _("Could not open %s twice: %s"), device, strerror(errno));
return -1;
}
if(ioctl(if_fd, I_PUSH, "ip") < 0){
- syslog(LOG_ERR, _("Can't push IP module: %m"));
+ syslog(LOG_ERR, _("Can't push IP module: %s"), strerror(errno));
return -1;
}
/* Assign ppa according to the unit number returned by tun device */
if(ioctl(if_fd, IF_UNITSEL, (char *)&ppa) < 0){
- syslog(LOG_ERR, _("Can't set PPA %d: %m"), ppa);
+ syslog(LOG_ERR, _("Can't set PPA %d: %s"), ppa, strerror(errno));
return -1;
}
if(ioctl(ip_fd, I_LINK, if_fd) < 0){
- syslog(LOG_ERR, _("Can't link TUN device to IP: %m"));
+ syslog(LOG_ERR, _("Can't link TUN device to IP: %s"), strerror(errno));
return -1;
}
+ if(!get_config_string(lookup_config(config_tree, "Interface"), &interface))
+ asprintf(&interface, "tun%d", ppa);
+
device_info = _("Solaris tun device");
/* Set default MAC address for ethertap devices */
mymac.net.mac.address.x[4] = 0x00;
mymac.net.mac.address.x[5] = 0x00;
- syslog(LOG_INFO, _("%s is a %s"), device_fname, device_info);
+ syslog(LOG_INFO, _("%s is a %s"), device, device_info);
cp
return 0;
}
-#ifdef HAVE_SOLARIS
- if((lenin = read(tap_fd, vp.data + 14, MTU)) <= 0)
- {
- syslog(LOG_ERR, _("Error while reading from tun device: %m"));
- return;
- }
- memcpy(vp.data, mymac.net.mac.address.x, 6);
- memcpy(vp.data + 6, mymac.net.mac.address.x, 6);
- vp.data[12] = 0x08;
- vp.data[13] = 0x00;
- vp.len = lenin + 14;
-#else
+void close_device(void)
+{
+cp
+ close(device_fd);
+}
int read_packet(vpn_packet_t *packet)
{
cp
if((lenin = read(device_fd, packet->data + 14, MTU - 14)) <= 0)
{
- syslog(LOG_ERR, _("Error while reading from %s %s: %m"), device_info, device_fname);
+ syslog(LOG_ERR, _("Error while reading from %s %s: %s"), device_info, device, strerror(errno));
return -1;
}
- memcpy(vp->data, mymac.net.mac.address.x, 6);
- memcpy(vp->data + 6, mymac.net.mac.address.x, 6);
- vp->data[12] = 0x08;
- vp->data[13] = 0x00;
+ memcpy(packet->data, mymac.net.mac.address.x, 6);
+ memcpy(packet->data + 6, mymac.net.mac.address.x, 6);
+ packet->data[12] = 0x08;
+ packet->data[13] = 0x00;
packet->len = lenin + 14;
if(debug_lvl >= DEBUG_TRAFFIC)
{
- syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), device_info, packet.len);
+ syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, device_info);
}
return 0;
if(write(device_fd, packet->data + 14, packet->len - 14) < 0)
{
- syslog(LOG_ERR, _("Can't write to %s %s: %m"), device_info, packet.len);
+ syslog(LOG_ERR, _("Can't write to %s %s: %s"), device_info, packet->len, 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
}
projects / tinc / blobdiff