From 5b86edadc37019b175509d348ed009de4b8f756f Mon Sep 17 00:00:00 2001
From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Date: Mon, 6 Jun 2011 19:07:01 -0400
Subject: removed TAP and MAC arguments from kvm-creator, and updated README to
 reflect the change

---
 kvm-manager | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'kvm-manager')

diff --git a/kvm-manager b/kvm-manager
index 6ba3629..3e575c6 100755
--- a/kvm-manager
+++ b/kvm-manager
@@ -9,9 +9,7 @@ set -e
 ## expect to pull these values from the environment:
 # VMNAME=snapper
 # OWNER=jrollins
-# TAP=tap0
 # RAM=512
-# MAC=52:54:00:12:34:56
 # HDA=/path/to/disk0 # optional
 # HDB=/path/to/disk1 # optional
 # HDC=/path/to/disk2 # optional
@@ -21,6 +19,10 @@ if [ -z "$VMNAME" ] ; then
     exit 1
 fi
 
+TAP="${TAP:-${NAME}}"
+# MAC address is derived from a hash of the host's name and the guest's name:
+MAC="${MAC:-$(printf "02:%s" "$(printf "%s\0%s" "$(hostname)" "${VMNAME}" | sha256sum | sed 's/\(..\)/\1:/g' | cut -f1-5 -d:)" )}"
+
 ###################
 OWNERGROUP=$(groups "$OWNER" | cut -f1 -d\  )
 OWNERHOME=$(getent passwd "$OWNER" | cut -f6 -d: )
-- 
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