1 #include "../src/utils.h"
2
change_cb(struct nl_cache * cache,struct nl_object * obj,int action)3 static void change_cb(struct nl_cache *cache, struct nl_object *obj,
4 int action)
5 {
6 struct nfnl_ct *ct = (struct nfnl_ct *) obj;
7 static struct nl_addr *hack = NULL;
8
9 if (!hack)
10 hack = nl_addr_parse("194.88.212.233", AF_INET);
11
12 if (!nl_addr_cmp(hack, nfnl_ct_get_src(ct, 1)) ||
13 !nl_addr_cmp(hack, nfnl_ct_get_dst(ct, 1))) {
14 struct nl_dump_params dp = {
15 .dp_type = NL_DUMP_LINE,
16 .dp_fd = stdout,
17 };
18
19 printf("UPDATE ");
20 nl_object_dump(obj, &dp);
21 }
22 }
23
main(int argc,char * argv[])24 int main(int argc, char *argv[])
25 {
26 struct nl_cache_mngr *mngr;
27 struct nl_sock *sock;
28 struct nl_cache *ct;
29
30 sock = nlt_socket_alloc();
31
32 mngr = nl_cache_mngr_alloc(sock, NETLINK_NETFILTER, NL_AUTO_PROVIDE);
33 if (!mngr) {
34 nl_perror("nl_cache_mngr_alloc");
35 return -1;
36 }
37
38 ct = nl_cache_mngr_add(mngr, "netfilter/ct", &change_cb);
39 if (ct == NULL) {
40 nl_perror("nl_cache_mngr_add(netfilter/ct)");
41 return -1;
42 }
43
44 for (;;) {
45 int err = nl_cache_mngr_poll(mngr, 5000);
46 if (err < 0) {
47 nl_perror("nl_cache_mngr_poll()");
48 return -1;
49 }
50
51 }
52
53 nl_cache_mngr_free(mngr);
54
55 return 0;
56 }
57