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/* ulog_test, $Revision: 1.4 $
*
* small testing program for libipulog, part of the netfilter ULOG target
* for the linux 2.4 netfilter subsystem.
*
* (C) 2000 by Harald Welte <laforge@gnumonks.org>
*
* this code is released under the terms of GNU GPL
*
* $Id: ulog_test.c 286 2002-06-13 12:56:53Z laforge $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libnetfilter_log/libipulog.h>
#define MYBUFSIZ 2048
/* prints some logging about a single packet */
void handle_packet(ulog_packet_msg_t *pkt)
{
unsigned char *p;
int i;
printf("Hook=%u Mark=%lu len=%zu ",
pkt->hook, pkt->mark, pkt->data_len);
if (strlen(pkt->prefix))
printf("Prefix=%s ", pkt->prefix);
if (strlen(pkt->indev_name))
printf("Input device=%s ", pkt->indev_name);
if (strlen(pkt->outdev_name))
printf("Output device=%s ", pkt->outdev_name);
if (pkt->timestamp_sec || pkt->timestamp_usec)
printf("Timestamp=%ld.%06lds ",
pkt->timestamp_sec, pkt->timestamp_usec);
if (pkt->mac_len)
{
printf("mac=");
p = pkt->mac;
for (i = 0; i < pkt->mac_len; i++, p++)
printf("%02x%c", *p, i==pkt->mac_len-1 ? ' ':':');
}
printf("\n");
}
int main(int argc, char *argv[])
{
struct ipulog_handle *h;
unsigned char* buf;
int len;
ulog_packet_msg_t *upkt;
int i;
if (argc != 4) {
fprintf(stderr, "Usage: %s count group timeout\n", argv[0]);
exit(2);
}
/* allocate a receive buffer */
buf = malloc(MYBUFSIZ);
if (!buf)
exit(1);
/* create ipulog handle */
h = ipulog_create_handle(ipulog_group2gmask(atoi(argv[2])), 65535);
if (!h)
{
/* if some error occurrs, print it to stderr */
ipulog_perror(NULL);
exit(1);
}
alarm(atoi(argv[3]));
/* loop receiving packets and handling them over to handle_packet */
for (i = 0; i < atoi(argv[1]); i++) {
len = ipulog_read(h, buf, MYBUFSIZ, 1);
if (len <= 0) {
ipulog_perror("ulog_test: short read");
exit(1);
}
printf("%d bytes received\n", len);
while ((upkt = ipulog_get_packet(h, buf, len)) != NULL) {
handle_packet(upkt);
}
}
/* just to give it a cleaner look */
ipulog_destroy_handle(h);
return 0;
}
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