network/veth: refuse when peer and the main interface names are equivalent

2024-09-10 19:30:17 +09:00
parent c60cd572bd
commit 98fbb3b5b0
1 changed files with 4 additions and 0 deletions
@@ -62,6 +62,10 @@ static int netdev_veth_verify(NetDev *netdev, const char *filename) {
                                                "Veth NetDev without peer name configured in %s. Ignoring",
                                                filename);

+        if (streq(v->ifname_peer, netdev->ifname))
+                return log_netdev_warning_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
+                                                "Veth peer name cannot be the same as the main interface name.");
+
        return 0;
 }