1 #include <netlink/netlink.h> 2 #include <netlink/cache.h> 3 #include <netlink/cli/utils.h> 4 #include <signal.h> 5 6 #include <netlink-private/cache-api.h> 7 8 static int quit = 0; 9 10 static struct nl_dump_params dp = { 11 .dp_type = NL_DUMP_LINE, 12 }; 13 14 15 static void change_cb(struct nl_cache *cache, struct nl_object *obj, 16 int action, void *data) 17 { 18 if (action == NL_ACT_NEW) 19 printf("NEW "); 20 else if (action == NL_ACT_DEL) 21 printf("DEL "); 22 else if (action == NL_ACT_CHANGE) 23 printf("CHANGE "); 24 25 nl_object_dump(obj, &dp); 26 } 27 28 static void sigint(int arg) 29 { 30 quit = 1; 31 } 32 33 int main(int argc, char *argv[]) 34 { 35 struct nl_cache_mngr *mngr; 36 struct nl_cache *cache; 37 int err, i; 38 39 dp.dp_fd = stdout; 40 41 signal(SIGINT, sigint); 42 43 err = nl_cache_mngr_alloc(NULL, NETLINK_ROUTE, NL_AUTO_PROVIDE, &mngr); 44 if (err < 0) 45 nl_cli_fatal(err, "Unable to allocate cache manager: %s", 46 nl_geterror(err)); 47 48 for (i = 1; i < argc; i++) { 49 err = nl_cache_mngr_add(mngr, argv[i], &change_cb, NULL, &cache); 50 if (err < 0) 51 nl_cli_fatal(err, "Unable to add cache %s: %s", 52 argv[i], nl_geterror(err)); 53 } 54 55 while (!quit) { 56 int err = nl_cache_mngr_poll(mngr, 1000); 57 if (err < 0 && err != -NLE_INTR) 58 nl_cli_fatal(err, "Polling failed: %s", nl_geterror(err)); 59 60 nl_cache_mngr_info(mngr, &dp); 61 } 62 63 nl_cache_mngr_free(mngr); 64 65 return 0; 66 } 67
