support for ip and connection information in libvirt.domain

1 files changed, 16 insertions, 0 deletions

diff --git a/libvirt/utils.go b/libvirt/utils.go
index 3dc8e17e..ee64d07b 100644
--- a/libvirt/utils.go
+++ b/libvirt/utils.go
@@ -1,6 +1,7 @@
 package libvirt
 
 import (
+	"crypto/rand"
 	"fmt"
 	"time"
 )
@@ -35,3 +36,18 @@ func WaitForSuccess(errorMessage string, f func() error) error {
 		}
 	}
 }
+
+func RandomMACAddress() (string, error) {
+	buf := make([]byte, 6)
+    _, err := rand.Read(buf)
+    if err != nil {
+		return "", err
+    }
+
+	// set local bit and unicast
+	buf[0] = (buf[0] | 2) & 0xfe
+    // Set the local bit
+    buf[0] |= 2
+
+	return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]), nil
+}