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/* $FreeBSD$ */
/*
* (C)opyright 1992-1998 Darren Reed. (from tcplog)
*
* See the IPFILTER.LICENCE file for details on licencing.
*
*/
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <ctype.h>
#include <signal.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/timeb.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/dir.h>
#include <linux/netdevice.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include "ipsend.h"
#if !defined(lint)
static const char sccsid[] = "@(#)slinux.c 1.2 8/25/95";
static const char rcsid[] = "@(#)Id: slinux.c,v 2.3 2001/06/09 17:09:26 darrenr Exp";
#endif
#define CHUNKSIZE 8192
#define BUFSPACE (4*CHUNKSIZE)
/*
* Be careful to only include those defined in the flags option for the
* interface are included in the header size.
*/
static int timeout;
static char *eth_dev = NULL;
int initdevice(dev, spare)
char *dev;
int spare;
{
int fd;
eth_dev = strdup(dev);
if ((fd = socket(AF_INET, SOCK_PACKET, htons(ETHERTYPE_IP))) == -1)
{
perror("socket(SOCK_PACKET)");
exit(-1);
}
return fd;
}
/*
* output an IP packet onto a fd opened for /dev/nit
*/
int sendip(fd, pkt, len)
int fd, len;
char *pkt;
{
struct sockaddr s;
struct ifreq ifr;
strncpy(ifr.ifr_name, eth_dev, sizeof(ifr.ifr_name));
if (ioctl(fd, SIOCGIFHWADDR, &ifr) == -1)
{
perror("SIOCGIFHWADDR");
return -1;
}
bcopy(ifr.ifr_hwaddr.sa_data, pkt + 6, 6);
s.sa_family = ETHERTYPE_IP;
strncpy(s.sa_data, eth_dev, sizeof(s.sa_data));
if (sendto(fd, pkt, len, 0, &s, sizeof(s)) == -1)
{
perror("send");
return -1;
}
return len;
}
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