1 files changed, 42 insertions, 0 deletions

diff --git a/recipes-core/net-persistent-mac/net-persistent-mac/init b/recipes-core/net-persistent-mac/net-persistent-mac/init
new file mode 100644
index 0000000..a2e2863
--- /dev/null
+++ b/recipes-core/net-persistent-mac/net-persistent-mac/init
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+### BEGIN INIT INFO
+# Provides:          net-persistent-mac
+# Required-Start:    $local_fs
+# Required-Stop:
+# Default-Start:     S
+# Default-Stop:
+# X-Start-Before:    networking
+# Short-Description: restore MAC during boot process
+### END INIT INFO
+
+set -e
+
+[ -f /etc/default/net-persistent-mac ] && . /etc/default/net-persistent-mac
+
+MAC_DIR="/var/lib/net-persistent-mac"
+
+for if in $INTERFACES; do
+        mkdir -p "$MAC_DIR"
+        IF_FILE="$MAC_DIR/$if.mac"
+        IF_MAC="/sys/class/net/$if/address"
+
+        # Store MAC for reuse
+        if [ ! -r "$IF_FILE" ]; then
+                if [ -e "$IF_MAC" ]; then
+                        echo "Storing MAC for $if for future use." > /dev/stderr
+                        cat "$IF_MAC" > "$IF_FILE"
+                else
+                        echo "Failed to read MAC for $if; skiping device."
+                fi
+        fi
+
+        if [ -r "$IF_FILE" ]; then
+                # Restore MAC setting
+                WANTED_MAC=`cat $IF_FILE`
+                if [ "$WANTED_MAC" != "`cat $IF_MAC`" ]; then
+                        echo "Setting MAC of $if to $WANTED_MAC."
+                        ifconfig $if hw ether "$WANTED_MAC"
+                fi
+        fi
+done