ipv4: fail early when creating netdev named all or default

[cascardo/linux.git] / include / net / ip.h

diff --git a/include/net/ip.h b/include/net/ip.h
index ca14799..09b32da 100644 (file)
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -216,6 +216,12 @@ static inline int inet_is_local_reserved_port(struct net *net, int port)
                return 0;
        return test_bit(port, net->ipv4.sysctl_local_reserved_ports);
 }
+
+static inline bool sysctl_dev_name_is_allowed(const char *name)
+{
+       return strcmp(name, "default") != 0  && strcmp(name, "all") != 0;
+}
+
 #else
 static inline int inet_is_local_reserved_port(struct net *net, int port)
 {