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From b990775b6f2fc8eb52d283b0745bea4a71ef751a Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Fri, 4 Apr 2014 12:48:03 +0200
Subject: [PATCH] ifcfg: do not bind persistent interface names to HWADDR
(cherry picked from commit fb0e5184a6506185998fd12d151f7d34d07c07b3)
---
modules.d/40network/net-lib.sh | 27 +++++++++++++++++++++++++++
modules.d/45ifcfg/write-ifcfg.sh | 6 +++++-
2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh
index 7430e4ce..5d4ae32c 100755
--- a/modules.d/40network/net-lib.sh
+++ b/modules.d/40network/net-lib.sh
@@ -516,3 +516,30 @@ find_iface_with_link() {
done
return 1
}
+
+is_persistent_ethernet_name() {
+ [ -f /sys/class/net/$netif/addr_assign_type ] || return 1
+ [ "$(cat /sys/class/net/$netif/addr_assign_type)" = "0" ] || return 1
+
+ case "$1" in
+ # udev persistent interface names
+ eth[0-9]|eth[0-9][0-9]|eth[0-9][0-9][0-9]*)
+ ;;
+ eno[0-9]|eno[0-9][0-9]|eno[0-9][0-9][0-9]*)
+ ;;
+ ens[0-9]|ens[0-9][0-9]|ens[0-9][0-9][0-9]*)
+ ;;
+ enp[0-9]s[0-9]*|enp[0-9][0-9]s[0-9]*|enp[0-9][0-9][0-9]*s[0-9]*)
+ ;;
+ enP*p[0-9]s[0-9]*|enP*p[0-9][0-9]s[0-9]*|enP*p[0-9][0-9][0-9]*s[0-9]*)
+ ;;
+ # biosdevname
+ em[0-9]|em[0-9][0-9]|em[0-9][0-9][0-9]*)
+ ;;
+ p[0-9]p[0-9]*|p[0-9][0-9]p[0-9]*|p[0-9][0-9][0-9]*p[0-9]*)
+ ;;
+ *)
+ return 1
+ esac
+ return 0
+}
diff --git a/modules.d/45ifcfg/write-ifcfg.sh b/modules.d/45ifcfg/write-ifcfg.sh
index 486c69a3..2631fbe2 100755
--- a/modules.d/45ifcfg/write-ifcfg.sh
+++ b/modules.d/45ifcfg/write-ifcfg.sh
@@ -164,7 +164,11 @@ for netup in /tmp/net.*.did-setup ; do
{
[ -n "$macaddr" ] && echo "MACADDR=\"$macaddr\""
if ! print_s390 $netif; then
- [ -n "$macaddr" ] || echo "HWADDR=\"$(cat /sys/class/net/$netif/address)\""
+ if [ -z "$macaddr" ] && \
+ ! is_persistent_ethernet_name "$netif" && \
+ [ -f /sys/class/net/$netif/address ]; then
+ echo "HWADDR=\"$(cat /sys/class/net/$netif/address)\""
+ fi
fi
echo "TYPE=Ethernet"
echo "NAME=\"$netif\""