1 files changed, 16 insertions, 0 deletions
diff --git a/src/net/ethernet.c b/src/net/ethernet.c
index a2e5658..03978c2 100644
--- a/src/net/ethernet.c
+++ b/src/net/ethernet.c
@@ -20,6 +20,7 @@
 FILE_LICENCE ( GPL2_OR_LATER );
 
 #include <stdint.h>
+#include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <byteswap.h>
@@ -113,6 +114,21 @@ void eth_init_addr ( const void *hw_addr, void *ll_addr ) {
 }
 
 /**
+ * Generate random Ethernet address
+ *
+ * @v hw_addr		Generated hardware address
+ */
+void eth_random_addr ( void *hw_addr ) {
+	uint8_t *addr = hw_addr;
+	unsigned int i;
+
+	for ( i = 0 ; i < ETH_ALEN ; i++ )
+		addr[i] = random();
+	addr[0] &= ~0x01; /* Clear multicast bit */
+	addr[0] |= 0x02; /* Set locally-assigned bit */
+}
+
+/**
  * Transcribe Ethernet address
  *
  * @v ll_addr		Link-layer address