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 vsctl="/usr/bin/ovs-vsctl"
30 local arg=$(xenstore-read "${PRIVATE}/other-config/promiscuous" 2>/dev/null)
31 if [ $? -eq 0 -a -n "${arg}" ] ; then
35 true|on) echo 1 > /sys/class/net/${dev}/brport/promisc ;;
36 *) echo 0 > /sys/class/net/${dev}/brport/promisc ;;
40 logger -t script-vif "${dev}: Promiscuous ports are not supported via vSwitch."
49 local arg=$(xenstore-read "${PRIVATE}/other-config/ethtool-${opt}" 2>/dev/null)
50 if [ $? -eq 0 -a -n "${arg}" ] ; then
52 true|on) /sbin/ethtool -K "${dev}" "${opt}" on ;;
53 false|off) /sbin/ethtool -K "${dev}" "${opt}" off ;;
54 *) logger -t scripts-vif "Unknown ethtool argument ${opt}=${arg} on ${dev}/${VIFUUID}" ;;
61 local mtu=$(xenstore-read "${PRIVATE}/MTU" 2>/dev/null)
62 if [ $? -eq 0 -a -n "${mtu}" ]; then
63 logger -t scripts-vif "Setting ${dev} MTU ${mtu}"
64 ${IP} link set "${dev}" mtu ${mtu} || logger -t scripts-vif "Failed to ip link set ${dev} mtu ${mtu}. Error code $?"
73 logger -t scripts-vif "vif${DOMID}.${DEVID} external-ids:\"${key}\"=\"${value}\""
75 echo "-- set interface vif${DOMID}.${DEVID} external-ids:\"${key}\"=\"${value}\""
78 handle_vswitch_vif_details()
81 local net_uuid=$(xenstore-read "${PRIVATE}/network-uuid" 2>/dev/null)
82 if [ -n "${net_uuid}" ] ; then
83 set_vif_external_id "xs-network-uuid" "${net_uuid}"
86 local address=$(xenstore-read "/local/domain/$DOMID/device/vif/$DEVID/mac" 2>/dev/null)
87 if [ -n "${address}" ] ; then
88 set_vif_external_id "xs-vif-mac" "${address}"
91 local vif_uuid=$(xenstore-read "${PRIVATE}/vif-uuid" 2>/dev/null)
92 if [ -n "${vif_uuid}" ] ; then
93 set_vif_external_id "xs-vif-uuid" "${vif_uuid}"
96 local vm=$(xenstore-read "/local/domain/$DOMID/vm" 2>/dev/null)
97 if [ $? -eq 0 -a -n "${vm}" ] ; then
98 local vm_uuid=$(xenstore-read "$vm/uuid" 2>/dev/null)
100 if [ -n "${vm_uuid}" ] ; then
101 set_vif_external_id "xs-vm-uuid" "${vm_uuid}"
105 xs550_set_internal_network_uuid()
107 . /etc/xensource-inventory
108 if test "$PRODUCT_VERSION" = "5.5.0" || test "${BUILD_NUMBER%p}" -le 26131
110 # vNetManager needs to know the network UUID(s) associated with each
111 # datapath. Normally interface-reconfigure adds them, but XAPI does
112 # not use interface-reconfigure for internal networks. Instead, XAPI
113 # calls the addbr ioctl internally, so we have to do it here instead
114 # for internal networks. This is only acceptable because xapi is lazy
115 # about creating internal networks: it only creates one just before it
116 # adds the first vif to it. There may still be a brief delay between
117 # the initial ovs-vswitchd connection to vNetManager and setting this
118 # configuration variable, but vNetManager can tolerate that.
120 local net_uuid=$(xenstore-read "${PRIVATE}/network-uuid" 2>/dev/null)
121 if [ -n "${net_uuid}" ] ; then
122 logger -t scripts-vif "${bridge} xs-network-uuids ${net_uuid}"
123 echo "-- br-set-external-id \"$bridge\" xs-network-uuids \"${net_uuid}\""
126 # XAPI after 5.5.0 sets the network external ids itself, via ovs-vsctl.
133 local address=$(xenstore-read "${PRIVATE}/bridge-MAC")
134 if [ $? -ne 0 -o -z "${address}" ]; then
135 logger -t scripts-vif "Failed to read ${PRIVATE}/bridge-MAC from xenstore"
138 local bridge=$(xenstore-read "${PRIVATE}/bridge")
139 if [ $? -ne 0 -o -z "${bridge}" ]; then
140 logger -t scripts-vif "Failed to read ${PRIVATE}/bridge from xenstore"
143 logger -t scripts-vif "Adding ${dev} to ${bridge} with address ${address}"
145 ${IP} link set "${dev}" down || logger -t scripts-vif "Failed to ip link set ${dev} down"
146 ${IP} link set "${dev}" arp off || logger -t scripts-vif "Failed to ip link set ${dev} arp off"
147 ${IP} link set "${dev}" multicast off || logger -t scripts-vif "Failed to ip link set ${dev} multicast off"
148 ${IP} link set "${dev}" address "${address}" || logger -t scripts-vif "Failed to ip link set ${dev} address ${address}"
149 ${IP} addr flush "${dev}" || logger -t scripts-vif "Failed to ip addr flush ${dev}"
151 case $NETWORK_MODE in
153 ${BRCTL} setfd "${bridge}" 0 || logger -t scripts-vif "Failed to brctl setfd ${bridge} 0"
154 ${BRCTL} addif "${bridge}" "${dev}" || logger -t scripts-vif "Failed to brctl addif ${bridge} ${dev}"
157 if [ "$TYPE" = "vif" ] ; then
158 local vif_details=$(handle_vswitch_vif_details)
161 $vsctl -- --if-exists del-port $dev -- add-port $bridge $dev $vif_details $(xs550_set_internal_network_uuid)
165 ${IP} link set "${dev}" up || logger -t scripts-vif "Failed to ip link set ${dev} up"
170 case $NETWORK_MODE in
175 $vsctl del-port $bridge $dev
180 NETWORK_MODE=$(cat /etc/xensource/network.conf)
183 # Older versions of XenServer do not pass in the type as an argument
184 if [[ $# -lt 2 ]]; then
190 case $NETWORK_MODE in
193 logger -t scripts-vif "Unknown network mode $NETWORK_MODE"
200 DOMID=`echo ${XENBUS_PATH} | cut -f 3 -d '/'`
201 DEVID=`echo ${XENBUS_PATH} | cut -f 4 -d '/'`
202 dev=vif${DOMID}.${DEVID}
206 DOMID=`echo ${dev#tap} | cut -f 1 -d '.'`
207 DEVID=`echo ${dev#tap} | cut -f 2 -d '.'`
210 logger -t scripts-vif "unknown interface type ${TYPE}"
215 XAPI=/xapi/${DOMID}/hotplug/vif/${DEVID}
216 HOTPLUG=/xapi/${DOMID}/hotplug/vif/${DEVID}
217 PRIVATE=/xapi/${DOMID}/private/vif/${DEVID}
219 logger -t scripts-vif "Called as \"$@\" domid:$DOMID devid:$DEVID mode:$NETWORK_MODE"
222 if [ "${TYPE}" = "vif" ] ; then
234 xenstore-write "${HOTPLUG}/vif" "${dev}"
235 xenstore-write "${HOTPLUG}/hotplug" "online"
237 # xs-xen.pq.hq:91e986b8e49f netback-wait-for-hotplug
238 xenstore-write "/local/domain/0/backend/vif/${DOMID}/${DEVID}/hotplug-status" "connected"
243 if [ "${TYPE}" = "tap" ] ; then
249 if [ "${TYPE}" = "vif" ] ;then
250 xenstore-rm "${HOTPLUG}/hotplug"
252 logger -t scripts-vif "${dev} has been removed"