net: if: Add helper to return interface of given type
The helper will return the first network interface of a desired
L2 type.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
diff --git a/include/net/net_if.h b/include/net/net_if.h
index 13354d2..d153225 100644
--- a/include/net/net_if.h
+++ b/include/net/net_if.h
@@ -529,6 +529,16 @@
*/
struct net_if *net_if_get_default(void);
+/**
+ * @brief Get the first network interface according to its type.
+ *
+ * @param l2 Layer 2 type of the network interface.
+ *
+ * @return First network interface of a given type or NULL if no such
+ * interfaces was found.
+ */
+struct net_if *net_if_get_first_by_type(const struct net_l2 *l2);
+
#if defined(CONFIG_NET_IPV6)
/**
* @brief Check if this IPv6 address belongs to one of the interfaces.
