return 0;
eaddrinuse:
- log_warning("There appears to be another LLMNR respondering running. Turning off LLMNR support.");
+ log_warning("There appears to be another LLMNR responder running. Turning off LLMNR support.");
m->llmnr_support = SUPPORT_NO;
manager_llmnr_stop(m);
return r;
}
+/* lo having ifindex 1 is hardcoded in the kernel */
+#define LOOPBACK_IFINDEX 1
+
int manager_ifindex_is_loopback(Manager *m, int ifindex) {
Link *l;
assert(m);
return -EINVAL;
l = hashmap_get(m->links, INT_TO_PTR(ifindex));
- if (l->flags & IFF_LOOPBACK)
+ if (!l)
+ /* in case we don't yet track the link, rely on the hardcoded value */
+ return ifindex == LOOPBACK_IFINDEX;
+ else if (l->flags & IFF_LOOPBACK)
return 1;
return 0;