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/*
* (C)opyright 1992-1998 Darren Reed. (from tcplog)
*
* See the IPFILTER.LICENCE file for details on licencing.
*/
#include <stdio.h>
#include <netdb.h>
#include <ctype.h>
#include <fcntl.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/stropts.h>
#ifdef sun
#include <sys/pfmod.h>
#include <sys/bufmod.h>
#endif
#include <sys/dlpi.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#include "ipsend.h"
#if !defined(lint)
static const char sccsid[] = "@(#)sdlpi.c 1.3 10/30/95 (C)1995 Darren Reed";
static const char rcsid[] = "@(#)$Id: sdlpi.c,v 2.1.4.2 2001/06/26 10:43:22 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.
*/
int initdevice(device, sport, tout)
char *device;
int sport, tout;
{
char devname[16], *s, buf[256];
int i, fd;
(void) strcpy(devname, "/dev/");
(void) strncat(devname, device, sizeof(devname) - strlen(devname));
s = devname + 5;
while (*s && !isdigit(*s))
s++;
if (!*s)
{
fprintf(stderr, "bad device name %s\n", devname);
exit(-1);
}
i = atoi(s);
*s = '\0';
/*
* For writing
*/
if ((fd = open(devname, O_RDWR)) < 0)
{
fprintf(stderr, "O_RDWR(1) ");
perror(devname);
exit(-1);
}
if (dlattachreq(fd, i) == -1 || dlokack(fd, buf) == -1)
{
fprintf(stderr, "DLPI error\n");
exit(-1);
}
dlbindreq(fd, ETHERTYPE_IP, 0, DL_CLDLS, 0, 0);
dlbindack(fd, buf);
/*
* write full headers
*/
#ifdef sun /* we require RAW DLPI mode, which is a Sun extension */
if (strioctl(fd, DLIOCRAW, -1, 0, NULL) == -1)
{
fprintf(stderr, "DLIOCRAW error\n");
exit(-1);
}
#else
you lose
#endif
return fd;
}
/*
* output an IP packet onto a fd opened for /dev/nit
*/
int sendip(fd, pkt, len)
int fd, len;
char *pkt;
{
struct strbuf dbuf, *dp = &dbuf;
/*
* construct NIT STREAMS messages, first control then data.
*/
dp->buf = pkt;
dp->len = len;
dp->maxlen = dp->len;
if (putmsg(fd, NULL, dp, 0) == -1)
{
perror("putmsg");
return -1;
}
if (ioctl(fd, I_FLUSH, FLUSHW) == -1)
{
perror("I_FLUSHW");
return -1;
}
return len;
}
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