|
 |
937446 |
diff -uNr a/heartbeat/IPaddr2 b/heartbeat/IPaddr2
|
|
|
937446 |
--- a/heartbeat/IPaddr2 2016-02-29 10:54:21.909786575 +0100
|
|
|
937446 |
+++ b/heartbeat/IPaddr2 2016-02-29 14:38:48.502852067 +0100
|
|
|
937446 |
@@ -673,19 +673,35 @@
|
|
|
937446 |
#
|
|
|
937446 |
run_send_ua() {
|
|
|
937446 |
local i
|
|
|
937446 |
- # Wait until the allocated IPv6 address gets ready by checking
|
|
|
937446 |
- # "tentative" flag is disappeared, otherwise send_ua can not
|
|
|
937446 |
- # send the unsolicited advertisement requests.
|
|
|
937446 |
- for i in 1 2 3 4 5; do
|
|
|
937446 |
- $IP2UTIL -o -f $FAMILY addr show dev $NIC \
|
|
|
937446 |
- | grep -q -e "$OCF_RESKEY_ip/$NETMASK .* tentative"
|
|
|
937446 |
- [ $? -ne 0 ] && break
|
|
|
937446 |
- if [ $i -eq 5 ]; then
|
|
|
937446 |
- ocf_log warn "$OCF_RESKEY_ip still has 'tentative' status. (ignored)"
|
|
|
937446 |
+
|
|
|
937446 |
+ # Duplicate Address Detection [DAD]
|
|
|
937446 |
+ # Kernel will flag the IP as 'tentative' until it ensured that
|
|
|
937446 |
+ # there is no duplicates.
|
|
|
937446 |
+ # If there is, it will flag it as 'dadfailed'
|
|
|
937446 |
+ for i in $(seq 1 10); do
|
|
|
937446 |
+ ipstatus=$($IP2UTIL -o -f $FAMILY addr show dev $NIC to $OCF_RESKEY_ip/$NETMASK)
|
|
|
937446 |
+ case "$ipstatus" in
|
|
|
937446 |
+ *dadfailed*)
|
|
|
937446 |
+ ocf_log err "IPv6 address collision $OCF_RESKEY_ip [DAD]"
|
|
|
937446 |
+ $IP2UTIL -f $FAMILY addr del dev $NIC $OCF_RESKEY_ip/$NETMASK
|
|
|
937446 |
+ if [ $? -ne 0 ]; then
|
|
|
937446 |
+ ocf_log err "Could not delete IPv6 address"
|
|
|
937446 |
+ fi
|
|
|
937446 |
+ return $OCF_ERR_GENERIC
|
|
|
937446 |
+ ;;
|
|
|
937446 |
+ *tentative*)
|
|
|
937446 |
+ if [ $i -eq 10 ]; then
|
|
|
937446 |
+ ofc_log warn "IPv6 address : DAD is still in tentative"
|
|
|
937446 |
+ fi
|
|
|
937446 |
+ ;;
|
|
|
937446 |
+ *)
|
|
|
937446 |
break
|
|
|
937446 |
- fi
|
|
|
937446 |
+ ;;
|
|
|
937446 |
+ esac
|
|
|
937446 |
sleep 1
|
|
|
937446 |
done
|
|
|
937446 |
+ # Now the address should be usable
|
|
|
937446 |
+
|
|
|
937446 |
ARGS="-i $OCF_RESKEY_arp_interval -c $OCF_RESKEY_arp_count $OCF_RESKEY_ip $NETMASK $NIC"
|
|
|
937446 |
ocf_log info "$SENDUA $ARGS"
|
|
|
937446 |
$SENDUA $ARGS || ocf_log err "Could not send ICMPv6 Unsolicited Neighbor Advertisements."
|
|
|
937446 |
@@ -838,6 +854,10 @@
|
|
|
937446 |
else
|
|
|
937446 |
if [ -x $SENDUA ]; then
|
|
|
937446 |
run_send_ua
|
|
|
937446 |
+ if [ $? -ne 0 ]; then
|
|
|
937446 |
+ ocf_exit_reason "run_send_ua failed."
|
|
|
937446 |
+ exit $OCF_ERR_GENERIC
|
|
|
937446 |
+ fi
|
|
|
937446 |
fi
|
|
|
937446 |
fi
|
|
|
937446 |
;;
|