helper: eth: added mac address parse

Ethernet MAC address parse function is commonly needed by
test applications. A common parse function harmonizes the
definition of MAC address as a command line parameter.

Signed-off-by: Petri Savolainen <petri.savolainen@nokia.com>
Reviewed-by: Juha-Matti Tilli <juha-matti.tilli@nokia.com>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/helper/eth.c b/helper/eth.c
new file mode 100644
index 000000000..9a151fa23
--- /dev/null
+++ b/helper/eth.c
@@ -0,0 +1,36 @@
+/* Copyright (c) 2016, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#include <odp/helper/eth.h>
+
+#include <stdio.h>
+#include <string.h>
+
+int odph_eth_addr_parse(odph_ethaddr_t *mac, const char *str)
+{
+	int byte[ODPH_ETHADDR_LEN];
+	int i;
+
+	memset(byte, 0, sizeof(byte));
+
+	if (sscanf(str, "%x:%x:%x:%x:%x:%x",
+		   &byte[0], &byte[1], &byte[2],
+		   &byte[3], &byte[4], &byte[5]) != ODPH_ETHADDR_LEN)
+		return -1;
+
+	for (i = 0; i < ODPH_ETHADDR_LEN; i++)
+		if (byte[i] < 0 || byte[i] > 255)
+			return -1;
+
+	mac->addr[0] = byte[0];
+	mac->addr[1] = byte[1];
+	mac->addr[2] = byte[2];
+	mac->addr[3] = byte[3];
+	mac->addr[4] = byte[4];
+	mac->addr[5] = byte[5];
+
+	return 0;
+}