kernel-netlink: Set usable state whenever an interface appears

If an interface is renamed we already have an entry (based on the
ifindex) allocated but previously only set the usable state once
based on the original name.

Fixes #2403.

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
index 0dd3e30cbf77b42f48dd890037dedced0f9b0d81..a21d0ae7f10aaf19236bc23a8f9c44d94da317b1 100644 (file)
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
@@ -1183,13 +1183,13 @@ static void process_link(private_kernel_netlink_net_t *this,
                                INIT(entry,
                                        .ifindex = msg->ifi_index,
                                        .addrs = linked_list_create(),
-                                       .usable = charon->kernel->is_interface_usable(
-                                                                                                               charon->kernel, name),
                                );
                                this->ifaces->insert_last(this->ifaces, entry);
                        }
                        strncpy(entry->ifname, name, IFNAMSIZ);
                        entry->ifname[IFNAMSIZ-1] = '\0';
+                       entry->usable = charon->kernel->is_interface_usable(charon->kernel,
+                                                                                                                               name);
                        if (event && entry->usable)
                        {
                                if (!(entry->flags & IFF_UP) && (msg->ifi_flags & IFF_UP))