1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4#include <errno.h>
5#include <arpa/inet.h>
6
7#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
8#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
9
10int main(void)
11{
12	int ret;
13	struct nfct_handle *h;
14	struct nf_conntrack *ct;
15
16	ct = nfct_new();
17	if (!ct) {
18		perror("nfct_new");
19		return 0;
20	}
21
22	nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
23	nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
24	nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
25
26	nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
27	nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
28	nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
29
30	nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
31
32	nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT);
33	nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
34
35	h = nfct_open(CONNTRACK, 0);
36	if (!h) {
37		perror("nfct_open");
38		nfct_destroy(ct);
39		return -1;
40	}
41
42	ret = nfct_query(h, NFCT_Q_CREATE, ct);
43
44	printf("TEST: create conntrack ");
45	if (ret == -1)
46		printf("(%d)(%s)\n", ret, strerror(errno));
47	else
48		printf("(OK)\n");
49
50	nfct_close(h);
51
52	nfct_destroy(ct);
53
54	ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
55}
56