diff options
| -rw-r--r-- | src/resolve/resolved-manager.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/resolve/resolved-manager.c b/src/resolve/resolved-manager.c index f97989754d..00aaffe448 100644 --- a/src/resolve/resolved-manager.c +++ b/src/resolve/resolved-manager.c @@ -1687,6 +1687,9 @@ fail: 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); @@ -1695,7 +1698,10 @@ int manager_ifindex_is_loopback(Manager *m, int ifindex) { 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; |