Add hw_address method for use in bonding

Bonding management needs easy way to find hardware address.
Related to Bug 4758
(cherry picked from commit a4404bfb3c4243967a4434707213430d5c4df58e)

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/Vyatta/Interface.pm b/lib/Vyatta/Interface.pm
index 96429c0..97ef7f7 100755
--- a/lib/Vyatta/Interface.pm
+++ b/lib/Vyatta/Interface.pm
@@ -222,6 +222,18 @@ sub flags {
     return hex($val);
 }
 
+sub hw_address {
+    my $self = shift;
+
+    open my $addrf, '<', "/sys/class/net/$self->{name}/address"
+	or return;
+    my $address = <$addrf>;
+    close $addrf;
+
+    chomp $address if $address;
+    return $address;
+}
+
 sub is_broadcast {
     my $self = shift;
     return $self->flags() & IFF_BROADCAST;