drivers: ethernet: Allow changing the MAC address of the slip interface

This patch adds the necessary switch option to the slip configuration
callback to enable the dynamic configuration of the MAC address of this
interface.

Signed-off-by: Marcelo Roberto Jimenez <[email protected]>

Author: mrjimenez

drivers/ethernet/eth_slip_tap.c

@@ -33,7 +33,14 @@ static enum ethernet_hw_caps eth_capabilities(const struct device *dev)
 static int eth_slip_tap_set_config(const struct device *dev, enum ethernet_config_type type,
 				   const struct ethernet_config *config)
 {
+	struct slip_context *slip = dev->data;
+
 	switch (type) {
+	case ETHERNET_CONFIG_TYPE_MAC_ADDRESS:
+		memcpy(slip->mac_addr, config->mac_address.addr, 6);
+		net_if_set_link_addr(slip->iface, slip->mac_addr, sizeof(slip->mac_addr),
+				     NET_LINK_ETHERNET);
+		return 0;
 #if defined(CONFIG_NET_PROMISCUOUS_MODE)
 	case ETHERNET_CONFIG_TYPE_PROMISC_MODE:
 		return 0;