1 #include "../src/utils.h"
2 #include <signal.h>
3
4 static int quit = 0;
5
change_cb(struct nl_cache * cache,struct nl_object * obj,int action)6 static void change_cb(struct nl_cache *cache, struct nl_object *obj,
7 int action)
8 {
9 struct nl_dump_params dp = {
10 .dp_type = NL_DUMP_LINE,
11 .dp_fd = stdout,
12 };
13
14 if (action == NL_ACT_NEW)
15 printf("NEW ");
16 else if (action == NL_ACT_DEL)
17 printf("DEL ");
18 else if (action == NL_ACT_CHANGE)
19 printf("CHANGE ");
20
21 nl_object_dump(obj, &dp);
22 }
23
sigint(int arg)24 static void sigint(int arg)
25 {
26 quit = 1;
27 }
28
main(int argc,char * argv[])29 int main(int argc, char *argv[])
30 {
31 struct nl_cache_mngr *mngr;
32 struct nl_cache *lc, *nc, *ac, *rc;
33 struct nl_sock *sock;
34 int err;
35
36 signal(SIGINT, sigint);
37
38 sock = nlt_alloc_socket();
39 err = nl_cache_mngr_alloc(sock, NETLINK_ROUTE, NL_AUTO_PROVIDE, &mngr);
40 if (err < 0)
41 fatal(err, "Unable to allocate cache manager: %s",
42 nl_geterror(err));
43
44 if ((err = nl_cache_mngr_add(mngr, "route/link", &change_cb, &lc)) < 0)
45 fatal(err, "Unable to add cache route/link: %s",
46 nl_geterror(err));
47
48 if ((err = nl_cache_mngr_add(mngr, "route/neigh", &change_cb, &nc)) < 0)
49 fatal(err, "Unable to add cache route/neigh: %s",
50 nl_geterror(err));
51
52 if ((err = nl_cache_mngr_add(mngr, "route/addr", &change_cb, &ac)) < 0)
53 fatal(err, "Unable to add cache route/addr: %s",
54 nl_geterror(err));
55
56 if ((err = nl_cache_mngr_add(mngr, "route/route", &change_cb, &rc)) < 0)
57 fatal(err, "Unable to add cache route/route: %s",
58 nl_geterror(err));
59
60 while (!quit) {
61 int err = nl_cache_mngr_poll(mngr, 5000);
62 if (err < 0 && err != -NLE_INTR)
63 fatal(err, "Polling failed: %s", nl_geterror(err));
64
65 }
66
67 nl_cache_mngr_free(mngr);
68 nl_socket_free(sock);
69
70 return 0;
71 }
72