3 # Copyright (C) 2008,2009 Citrix Systems, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU Lesser General Public License as published
7 # by the Free Software Foundation; version 2.1 only. with the special
8 # exception on linking described in file LICENSE.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU Lesser General Public License for more details.
15 # CA-23900: Warning: when VIFs are added to windows guests with PV drivers the backend vif device is registered,
16 # unregistered and then registered again. This causes the udev event to fire twice and this script runs twice.
17 # Since the first invocation of the script races with the device unregistration, spurious errors are possible
18 # which will be logged but are safe to ignore since the second script invocation should complete the operation.
19 # Note that each script invocation is run synchronously from udev and so the scripts don't race with each other.
21 # Keep other-config/ keys in sync with device.ml:vif_udev_keys
23 BRCTL="/usr/sbin/brctl"
26 cfg_mod="/usr/bin/ovs-cfg-mod"
27 vsctl="/usr/bin/ovs-vsctl"
28 service="/sbin/service"
32 local arg=$(xenstore-read "${PRIVATE}/other-config/promiscuous" 2>/dev/null)
33 if [ $? -eq 0 -a -n "${arg}" ] ; then
37 true|on) echo 1 > /sys/class/net/${dev}/brport/promisc ;;
38 *) echo 0 > /sys/class/net/${dev}/brport/promisc ;;
42 logger -t script-vif "${dev}: Promiscuous ports are not supported via vSwitch."
51 local arg=$(xenstore-read "${PRIVATE}/other-config/ethtool-${opt}" 2>/dev/null)
52 if [ $? -eq 0 -a -n "${arg}" ] ; then
54 true|on) /sbin/ethtool -K "${dev}" "${opt}" on ;;
55 false|off) /sbin/ethtool -K "${dev}" "${opt}" off ;;
56 *) logger -t scripts-vif "Unknown ethtool argument ${opt}=${arg} on ${dev}/${VIFUUID}" ;;
63 local mtu=$(xenstore-read "${PRIVATE}/MTU" 2>/dev/null)
64 if [ $? -eq 0 -a -n "${mtu}" ]; then
65 echo "${mtu}" > /sys/class/net/${dev}/mtu
69 handle_vswitch_vif_details()
72 local net_uuid=$(xenstore-read "${PRIVATE}/network-uuid" 2>/dev/null)
73 if [ -n "${net_uuid}" ] ; then
74 vif_details="$vif_details --add=port.${dev}.net-uuid=${net_uuid}"
77 local address=$(xenstore-read "/local/domain/$DOMID/device/vif/$DEVID/mac" 2>/dev/null)
78 if [ -n "${address}" ] ; then
79 vif_details="$vif_details --add=port.${dev}.vif-mac=${address}"
82 local vif_uuid=$(xenstore-read "${PRIVATE}/vif-uuid" 2>/dev/null)
83 if [ -n "${vif_uuid}" ] ; then
84 vif_details="$vif_details --add=port.${dev}.vif-uuid=${vif_uuid}"
87 local vm=$(xenstore-read "/local/domain/$DOMID/vm" 2>/dev/null)
88 if [ $? -eq 0 -a -n "${vm}" ] ; then
89 local vm_uuid=$(xenstore-read "$vm/uuid" 2>/dev/null)
91 if [ -n "${vm_uuid}" ] ; then
92 vif_details="$vif_details --add=port.${dev}.vm-uuid=${vm_uuid}"
99 local address=$(xenstore-read "${PRIVATE}/bridge-MAC")
100 if [ $? -ne 0 -o -z "${address}" ]; then
101 logger -t scripts-vif "Failed to read ${PRIVATE}/bridge-MAC from xenstore"
104 local bridge=$(xenstore-read "${PRIVATE}/bridge")
105 if [ $? -ne 0 -o -z "${bridge}" ]; then
106 logger -t scripts-vif "Failed to read ${PRIVATE}/bridge from xenstore"
109 logger -t scripts-vif "Adding ${dev} to ${bridge} with address ${address}"
111 ${IP} link set "${dev}" down || logger -t scripts-vif "Failed to ip link set ${dev} down"
112 ${IP} link set "${dev}" arp off || logger -t scripts-vif "Failed to ip link set ${dev} arp off"
113 ${IP} link set "${dev}" multicast off || logger -t scripts-vif "Failed to ip link set ${dev} multicast off"
114 ${IP} link set "${dev}" address "${address}" || logger -t scripts-vif "Failed to ip link set ${dev} address ${address}"
115 ${IP} addr flush "${dev}" || logger -t scripts-vif "Failed to ip addr flush ${dev}"
117 case $NETWORK_MODE in
119 ${BRCTL} setfd "${bridge}" 0 || logger -t scripts-vif "Failed to brctl setfd ${bridge} 0"
120 ${BRCTL} addif "${bridge}" "${dev}" || logger -t scripts-vif "Failed to brctl addif ${bridge} ${dev}"
123 local VLAN_ID=$($vsctl br-to-vlan $bridge)
125 if [ "$VLAN_ID" -ne 0 ] ; then
126 bridge=$($vsctl br-to-parent $bridge)
127 vid="--add=vlan.${dev}.tag=${VLAN_ID}"
130 if [ "$TYPE" = "vif" ] ; then
131 local vif_details=$(handle_vswitch_vif_details)
134 $cfg_mod -F /etc/ovs-vswitchd.conf \
135 --del-match="bridge.*.port=${dev}" \
136 --del-match="vlan.${dev}.trunks=*" \
137 --del-match="vlan.${dev}.tag=*" \
138 --del-match="port.${dev}.[!0-9]*" \
139 --add="bridge.$bridge.port=${dev}" \
141 $service vswitch reload
145 ${IP} link set "${dev}" up || logger -t scripts-vif "Failed to ip link set ${dev} up"
150 case $NETWORK_MODE in
155 $cfg_mod -vANY:console:emer -F /etc/ovs-vswitchd.conf \
156 --del-match="bridge.*.port=${dev}" \
157 --del-match="vlan.${dev}.trunks=*" \
158 --del-match="vlan.${dev}.tag=*" \
159 --del-match="port.${dev}.[!0-9]*" -c
160 $service vswitch reload
165 NETWORK_MODE=$(cat /etc/xensource/network.conf)
168 # Older versions of XenServer do not pass in the type as an argument
169 if [[ $# -lt 2 ]]; then
175 case $NETWORK_MODE in
178 logger -t scripts-vif "Unknown network mode $NETWORK_MODE"
185 DOMID=`echo ${XENBUS_PATH} | cut -f 3 -d '/'`
186 DEVID=`echo ${XENBUS_PATH} | cut -f 4 -d '/'`
187 dev=vif${DOMID}.${DEVID}
191 DOMID=`echo ${dev#tap} | cut -f 1 -d '.'`
192 DEVID=`echo ${dev#tap} | cut -f 2 -d '.'`
195 logger -t scripts-vif "unknown interface type ${TYPE}"
200 XAPI=/xapi/${DOMID}/hotplug/vif/${DEVID}
201 HOTPLUG=/xapi/${DOMID}/hotplug/vif/${DEVID}
202 PRIVATE=/xapi/${DOMID}/private/vif/${DEVID}
204 logger -t scripts-vif "Called as \"$@\" domid:$DOMID devid:$DEVID mode:$NETWORK_MODE"
207 if [ "${TYPE}" = "vif" ] ; then
219 xenstore-write "${HOTPLUG}/vif" "${dev}"
220 xenstore-write "${HOTPLUG}/hotplug" "online"
222 # xs-xen.pq.hq:91e986b8e49f netback-wait-for-hotplug
223 xenstore-write "/local/domain/0/backend/vif/${DOMID}/${DEVID}/hotplug-status" "connected"
228 if [ "${TYPE}" = "tap" ] ; then
234 if [ "${TYPE}" = "vif" ] ;then
235 xenstore-rm "${HOTPLUG}/hotplug"
237 logger -t scripts-vif "${dev} has been removed"