1 #include "../src/utils.h" 2 #include <signal.h> 3 4 static int quit = 0; 5 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 24 static void sigint(int arg) 25 { 26 quit = 1; 27 } 28 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
