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)
61 echo "pl_netinit: network initialization failed,"
62 echo "pl_netinit: shutting down machine in two hours"
68 # Function for checking the IP address to see if its sensible.
72 "" | *[!0-9.]* | *[!0-9]) return 1 ;;
77 [ ${1:-666} -le 255 ] && [ ${2:-666} -le 255 ] &&
78 [ ${3:-666} -le 255 ] && [ ${4:-666} -le 255 ]
81 # find and parse a node network configuration file. return 0 if not found,
82 # return 1 if found and parsed. if this is the case, DEFAULT_NET_CONF will
83 # be set to 1. For any found configuration file, $USED_NET_CONF will
84 # contain the validated contents
87 /bin/rm -f $TMP_OLD_FLOPPY_CONF_FILE 2>&1 > /dev/null
89 echo "pl_netinit: looking for node configuration file on floppy"
91 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES /dev/fd0 \
92 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
93 if [[ $? -eq 0 ]]; then
95 # 1. check for new named file first on the floppy disk
96 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
97 echo "pl_netinit: found node configuration file plnode.txt, using"
99 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
100 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
101 /bin/umount $CONF_DEVICE_MOUNT_POINT
104 # since we have the floppy mounted already, see if an old file
105 # exists there so we don't have to remount the floppy when we need
106 # to check for an old file on it (later in the order). if it does
107 # just copy it off to a special location
108 elif [ -r "$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME" ]; then
109 conf_file="$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME"
110 /bin/cp -f $conf_file $TMP_OLD_FLOPPY_CONF_FILE
111 echo "pl_netinit: found old named configuration file, checking later."
113 echo "pl_netinit: floppy mounted, but no configuration file."
116 /bin/umount $CONF_DEVICE_MOUNT_POINT
118 echo "pl_netinit: no floppy could be mounted, continuing search."
121 # 2. check for a new named file on removable flash devices (those
122 # that start with sd*, because usb_storage emulates scsi devices).
123 # to prevent checking normal scsi disks, also make sure
124 # /sys/block/<dev>/removable is set to 1
126 echo "pl_netinit: looking for node configuration file on flash based devices"
128 # make the sd* expansion fail to an empty string if there are no sd
132 for device in /sys/block/sd*; do
133 removable=`cat $device/removable`
134 if [[ $removable -ne 1 ]]; then
138 check_dev=/dev/`basename $device`1
140 echo "pl_netinit: looking for node configuration file on device $check_dev"
141 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES $check_dev \
142 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
143 if [[ $? -eq 0 ]]; then
144 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
145 echo "pl_netinit: found node configuration file plnode.txt, using"
147 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
148 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
149 echo "pl_netinit: found configuration"
150 /bin/umount $CONF_DEVICE_MOUNT_POINT
154 echo "pl_netinit: not found"
156 /bin/umount $CONF_DEVICE_MOUNT_POINT
160 # normal filename expansion setting
163 # 3. see if there is an old file on the floppy disk. if there was,
164 # the file $TMP_OLD_FLOPPY_CONF_FILE will be readable.
165 if [ -r "$TMP_OLD_FLOPPY_CONF_FILE" ]; then
166 echo "pl_netinit: found node configuration file planet.cnf, using"
168 conf_file=$TMP_OLD_FLOPPY_CONF_FILE
169 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
174 # 4. check for plnode.txt on the cd at /usr/boot
175 echo "pl_netinit: looking for network configuration on cd in /usr/boot"
176 if [ -r "$CD_NET_CONF_BOOT" ]; then
178 echo "pl_netinit: found cd configuration file, using"
179 /etc/init.d/pl_validateconf < $CD_NET_CONF_BOOT > $USED_NET_CONF
184 # 5. check for plnode.txt on the cd at /usr
185 echo "pl_netinit: looking for network configuration on cd in /usr"
186 if [ -r "$CD_NET_CONF_ROOT" ]; then
188 echo "pl_netinit: found cd configuration file, using"
189 /etc/init.d/pl_validateconf < $CD_NET_CONF_ROOT > $USED_NET_CONF
194 # 6. no node configuration file could be found, fall back to
195 # builtin default. this can't be used to install a machine, but
196 # will at least let it download and run the boot manager, which
197 # can inform the users appropriately.
198 echo "pl_netinit: using default network configuration"
199 if [ -r "$FALLBACK_NET_CONF" ]; then
200 echo "pl_netinit: found cd default configuration file, using"
201 /etc/init.d/pl_validateconf < $FALLBACK_NET_CONF > $USED_NET_CONF
210 echo "pl_netinit: bringing loopback network device up"
211 /sbin/ifconfig lo 127.0.0.1 up
214 if [ $? -eq 0 ]; then
215 # no network configuration file found. this should not happen as the
216 # default cd image has a backup one. halt.
217 echo "pl_netinit: unable to find even a default network configuration"
218 echo "pl_netinit: file, this cd may be corrupt."
222 # load the configuration file. if it was a default one (not user specified),
223 # then remove the saved copy from /tmp, but continue on. since a network
224 # configuration file is required and boot scripts only know about this location
225 # they will fail (as they should) - but the network will be up if dhcp is
228 echo "pl_netinit: loading network configuration"
231 if [[ $DEFAULT_NET_CONF -eq 1 ]]; then
232 /bin/rm -f $USED_NET_CONF
235 # now, we need to find which device to use (ie, eth0 or eth1). start out
236 # by defaulting to eth0, then see if the network configuration file specified
237 # either a mac address (in which case we will need to find the device), or
240 if [[ -n "$NET_DEVICE" ]]; then
241 # the user specified a mac address we should use. find the network
243 echo "pl_netinit: looking for a device with mac address $NET_DEVICE"
247 dev_address=`cat $device/address`
248 if [[ "$dev_address" == "$NET_DEVICE" ]]; then
250 echo "pl_netinit: found device $ETH_DEVICE"
256 ETH_DEVICE=$DEFAULT_NET_DEV
257 echo "pl_netinit: using default device $ETH_DEVICE"
262 # if we couldn't find a device (would happen if NET_DEVICE was specified
263 # but we couldn't find a device for that addresS), then abort the rest
266 if [[ -z "$ETH_DEVICE" ]]; then
267 echo "pl_netinit: unable to find a usable device, check to make sure"
268 echo "pl_netinit: the NET_DEVICE field in the configuration file"
269 echo "pl_netinit: cooresponds with a network adapter on this system"
274 # actually check to make sure ifconfig <device> succeeds
275 /sbin/ifconfig $ETH_DEVICE up 2>&1 > /dev/null
276 if [[ $? -ne 0 ]]; then
277 echo "pl_netinit: device $ETH_DEVICE does not exist, most likely"
278 echo "pl_netinit: this cd does not have hardware support for your"
279 echo "pl_netinit: network adapter. please send the following lines"
280 echo "pl_netinit: to PlanetLab Support: support@planet-lab.org"
281 echo "pl_netinit: for further assistance"
283 /sbin/lspci -n | /bin/grep "Class 0200"
289 if [[ "$IP_METHOD" == "dhcp" ]]; then
290 echo "pl_netinit: attempting to bring up device with dhcp"
292 # setup a dhclient conf file for this device (used to send
293 # our hostname to the dhcp server)
294 echo "interface \"$ETH_DEVICE\" {" > $DHCLIENT_CONF_FILE
295 echo "send host-name \"$HOST_NAME.$DOMAIN_NAME\";" >> $DHCLIENT_CONF_FILE
296 echo "}" >> $DHCLIENT_CONF_FILE
298 # touch the redhat net device configuration file so
299 # dhclient doesn't complain
300 /bin/touch /etc/sysconfig/network-scripts/ifcfg-$ETH_DEVICE
303 while [[ $configured -eq 0 ]]; do
304 /sbin/dhclient -1 -cf $DHCLIENT_CONF_FILE $ETH_DEVICE
305 if [[ $? -ne 0 ]]; then
306 echo "pl_netinit: dhcp failed, retrying in 2 minutes"
309 echo "pl_netinit: dhcp succeeded"
315 echo "pl_netinit: configuring device statically"
317 /sbin/ifconfig $ETH_DEVICE $IP_ADDRESS broadcast $IP_BROADCASTADDR \
319 /sbin/route add default gw $IP_GATEWAY dev $ETH_DEVICE
321 if [[ -z "$IP_DNS1" ]]; then
322 echo "pl_netinit: no dns server specified, cannot continue."
326 echo "nameserver $IP_DNS1" > /etc/resolv.conf
327 if [[ -n "$IP_DNS2" ]]; then
328 echo "nameserver $IP_DNS2" >> /etc/resolv.conf
332 # for backwards compatibility
333 /sbin/ifconfig $ETH_DEVICE > $IFCONFIG_OUTPUT
335 echo "pl_netinit: network online"