3 # the name of the floppy based network configuration
4 # files (checked first). the name planet.cnf is kept
5 # for backward compatibility with old nodes, and only
6 # the floppy disk is searched for files with this name.
7 # new files are named plnode.txt and can be located on
8 # a floppy or usb device or on the cdrom
9 OLD_NODE_CONF_NAME=planet.cnf
10 NEW_NODE_CONF_NAME=plnode.txt
12 # one location of cd-based network configuration file
13 # (checked if floppy conf file missing and usb
14 # configuration file is missing)
15 CD_NET_CONF_BOOT=/usr/boot/$NEW_NODE_CONF_NAME
17 # the other location of cd-based network configuration file
18 CD_NET_CONF_ROOT=/usr/$NEW_NODE_CONF_NAME
20 # if all other network configuration file sources
21 # don't exist, fall back to this one (always on the cd)
22 FALLBACK_NET_CONF=/usr/boot/default-net.cnf
24 # a temporary place to hold the old configuration file
25 # off of the floppy disk if we find it (so we don't have
26 # to remount the floppy later)
27 TMP_OLD_FLOPPY_CONF_FILE=/tmp/oldfloppy_planet.cnf
29 # once a configuration file is found, save it in /tmp
30 # (may be used later by boot scripts)
31 USED_NET_CONF=/tmp/planet.cnf
33 # default device to use for contacting PLC if not specified
34 # in the configuration file
37 # where to store the temporary dhclient conf file
38 DHCLIENT_CONF_FILE=/tmp/dhclient.conf
40 # which fs types we support finding node configuration files on
41 # (will be based as a -t parameter to mount)
42 NODE_CONF_DEVICE_FS_TYPES="msdos,ext2"
44 # a temporary place to mount devices that might contain configuration
46 CONF_DEVICE_MOUNT_POINT=/mnt/confdevice
47 /bin/mkdir -p $CONF_DEVICE_MOUNT_POINT
49 # for some backwards compatibility, save the ifconfig <device>
50 # output to this file after everything is online
51 IFCONFIG_OUTPUT=/tmp/ifconfig
53 # set to 1 if the default network configuration was loaded off the cd
54 # (no other configuration file found)
60 echo "pl_netinit: network initialization failed,"
61 echo "pl_netinit: shutting down machine in two hours"
67 # Function for checking the IP address to see if its sensible.
71 "" | *[!0-9.]* | *[!0-9]) return 1 ;;
76 [ ${1:-666} -le 255 ] && [ ${2:-666} -le 255 ] &&
77 [ ${3:-666} -le 255 ] && [ ${4:-666} -le 255 ]
80 # find and parse a node network configuration file. return 0 if not found,
81 # return 1 if found and parsed. if this is the case, DEFAULT_NET_CONF will
82 # be set to 1. For any found configuration file, $USED_NET_CONF will
83 # contain the validated contents
86 /bin/rm -f $TMP_OLD_FLOPPY_CONF_FILE 2>&1 > /dev/null
88 echo "pl_netinit: looking for node configuration file on floppy"
90 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES /dev/fd0 \
91 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
92 if [[ $? -eq 0 ]]; then
94 # 1. check for new named file first on the floppy disk
95 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
96 echo "pl_netinit: found node configuration file plnode.txt, using"
98 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
99 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
100 /bin/umount $CONF_DEVICE_MOUNT_POINT
103 # since we have the floppy mounted already, see if an old file
104 # exists there so we don't have to remount the floppy when we need
105 # to check for an old file on it (later in the order). if it does
106 # just copy it off to a special location
107 elif [ -r "$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME" ]; then
108 conf_file="$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME"
109 /bin/cp -f $conf_file $TMP_OLD_FLOPPY_CONF_FILE
110 echo "pl_netinit: found old named configuration file, checking later."
112 echo "pl_netinit: floppy mounted, but no configuration file."
115 /bin/umount $CONF_DEVICE_MOUNT_POINT
117 echo "pl_netinit: no floppy could be mounted, continuing search."
120 # 2. check for a new named file on removable flash devices (those
121 # that start with sd*, because usb_storage emulates scsi devices).
122 # to prevent checking normal scsi disks, also make sure
123 # /sys/block/<dev>/removable is set to 1
125 echo "pl_netinit: looking for node configuration file on flash based devices"
127 echo "pl_netinit: waiting for flash devices if any to come online"
128 # some usb flash based devices take a couple of seconds to initialize
129 # also, try to read the partition table off the device to make sure
130 # it shows up in /sys/block
133 # make the sd* expansion fail to an empty string if there are no sd
137 for device in /sys/block/sd*; do
138 removable=`cat $device/removable`
139 if [[ $removable -ne 1 ]]; then
143 check_dev=/dev/`basename $device`1
145 echo "pl_netinit: looking for node configuration file on device $check_dev"
146 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES $check_dev \
147 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
148 if [[ $? -eq 0 ]]; then
149 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
150 echo "pl_netinit: found node configuration file plnode.txt, using"
152 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
153 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
154 echo "pl_netinit: found configuration"
155 /bin/umount $CONF_DEVICE_MOUNT_POINT
159 echo "pl_netinit: not found"
161 /bin/umount $CONF_DEVICE_MOUNT_POINT
165 # normal filename expansion setting
168 # 3. see if there is an old file on the floppy disk. if there was,
169 # the file $TMP_OLD_FLOPPY_CONF_FILE will be readable.
170 if [ -r "$TMP_OLD_FLOPPY_CONF_FILE" ]; then
171 echo "pl_netinit: found node configuration file planet.cnf, using"
173 conf_file=$TMP_OLD_FLOPPY_CONF_FILE
174 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
179 # 4. check for plnode.txt on the cd at /usr/boot
180 echo "pl_netinit: looking for network configuration on cd in /usr/boot"
181 if [ -r "$CD_NET_CONF_BOOT" ]; then
183 echo "pl_netinit: found cd configuration file, using"
184 /etc/init.d/pl_validateconf < $CD_NET_CONF_BOOT > $USED_NET_CONF
189 # 5. check for plnode.txt on the cd at /usr
190 echo "pl_netinit: looking for network configuration on cd in /usr"
191 if [ -r "$CD_NET_CONF_ROOT" ]; then
193 echo "pl_netinit: found cd configuration file, using"
194 /etc/init.d/pl_validateconf < $CD_NET_CONF_ROOT > $USED_NET_CONF
199 # 6. no node configuration file could be found, fall back to
200 # builtin default. this can't be used to install a machine, but
201 # will at least let it download and run the boot manager, which
202 # can inform the users appropriately.
203 echo "pl_netinit: using default network configuration"
204 if [ -r "$FALLBACK_NET_CONF" ]; then
205 echo "pl_netinit: found cd default configuration file, using"
206 /etc/init.d/pl_validateconf < $FALLBACK_NET_CONF > $USED_NET_CONF
211 echo "pl_netinit: using default network configuration from initrd"
212 echo 'IP_METHOD="dhcp"' > $USED_NET_CONF
213 echo 'HOST_NAME="planetlabnode"' >> $USED_NET_CONF
214 echo 'DOMAIN_NAME="localhost"' >> $USED_NET_CONF
220 echo "pl_netinit: bringing loopback network device up"
221 /sbin/ifconfig lo 127.0.0.1 up
224 if [ $? -eq 0 ]; then
225 # no network configuration file found. this should not happen as the
226 # default cd image has a backup one. halt.
227 echo "pl_netinit: unable to find even a default network configuration"
228 echo "pl_netinit: file, this cd may be corrupt."
232 # load the configuration file. if it was a default one (not user specified),
233 # then remove the saved copy from /tmp, but continue on. since a network
234 # configuration file is required and boot scripts only know about this location
235 # they will fail (as they should) - but the network will be up if dhcp is
238 echo "pl_netinit: loading network configuration"
241 if [[ $DEFAULT_NET_CONF -eq 1 ]]; then
242 /bin/rm -f $USED_NET_CONF
245 # now, we need to find which device to use (ie, eth0 or eth1). start out
246 # by defaulting to eth0, then see if the network configuration file specified
247 # either a mac address (in which case we will need to find the device), or
250 if [[ -n "$NET_DEVICE" ]]; then
251 # the user specified a mac address we should use. find the network
253 echo "pl_netinit: looking for a device with mac address $NET_DEVICE"
258 dev_address=`cat $device/address`
259 if [[ "$dev_address" == "$NET_DEVICE" ]]; then
261 echo "pl_netinit: found device $ETH_DEVICE"
267 elif [[ -n "$PRIMARY_DEV" ]]; then
268 # the user specified a virtual ethernet device to use.
269 ETH_DEVICE=$PRIMARY_DEV
270 echo "pl_netinit: using user specified device $ETH_DEVICE"
273 ETH_DEVICE=$DEFAULT_NET_DEV
274 echo "pl_netinit: using default device $ETH_DEVICE"
279 # if we couldn't find a device (would happen if NET_DEVICE was specified
280 # but we couldn't find a device for that addresS), then abort the rest
283 if [[ -z "$ETH_DEVICE" ]]; then
284 echo "pl_netinit: unable to find a usable device, check to make sure"
285 echo "pl_netinit: the NET_DEVICE field in the configuration file"
286 echo "pl_netinit: cooresponds with a network adapter on this system"
291 # actually check to make sure ifconfig <device> succeeds
292 /sbin/ifconfig $ETH_DEVICE up 2>&1 > /dev/null
293 if [[ $? -ne 0 ]]; then
294 echo "pl_netinit: device $ETH_DEVICE does not exist,"
295 echo "pl_netinit: this is due to either the device not existing,"
296 echo "pl_netinit: or its device drivers not being loaded"
300 if [[ "$IP_METHOD" == "dhcp" ]]; then
301 echo "pl_netinit: attempting to bring up device with dhcp"
303 # setup a dhclient conf file for this device (used to send
304 # our hostname to the dhcp server)
305 echo "# generated by pl_netinit" > $DHCLIENT_CONF_FILE
306 echo "option planetlab-nfs-cluster-server code 200 = ip-address;" >> $DHCLIENT_CONF_FILE
307 echo "interface \"$ETH_DEVICE\" {" >> $DHCLIENT_CONF_FILE
308 echo "send host-name \"$HOST_NAME.$DOMAIN_NAME\";" >> $DHCLIENT_CONF_FILE
309 echo "request subnet-mask,broadcast-address,domain-name,host-name,routers,domain-name-servers,planetlab-nfs-cluster-server;" >> $DHCLIENT_CONF_FILE
310 echo "}" >> $DHCLIENT_CONF_FILE
312 # touch the redhat net device configuration file so
313 # dhclient doesn't complain
314 /bin/touch /etc/sysconfig/network-scripts/ifcfg-$ETH_DEVICE
317 while [[ $configured -eq 0 ]]; do
318 /sbin/dhclient -1 -cf $DHCLIENT_CONF_FILE $ETH_DEVICE
319 if [[ $? -ne 0 ]]; then
320 echo "pl_netinit: dhcp failed, retrying in 2 minutes"
323 echo "pl_netinit: dhcp succeeded"
329 echo "pl_netinit: configuring device statically"
331 /sbin/ifconfig $ETH_DEVICE $IP_ADDRESS broadcast $IP_BROADCASTADDR \
333 /sbin/route add default gw $IP_GATEWAY dev $ETH_DEVICE
335 if [[ -z "$IP_DNS1" ]]; then
336 echo "pl_netinit: no dns server specified, cannot continue."
340 echo "nameserver $IP_DNS1" > /etc/resolv.conf
341 if [[ -n "$IP_DNS2" ]]; then
342 echo "nameserver $IP_DNS2" >> /etc/resolv.conf
346 # for backwards compatibility
347 /sbin/ifconfig $ETH_DEVICE > $IFCONFIG_OUTPUT
349 echo "pl_netinit: network online"