6 # the name of the floppy based network configuration
7 # files (checked first). the name planet.cnf is kept
8 # for backward compatibility with old nodes, and only
9 # the floppy disk is searched for files with this name.
10 # new files are named plnode.txt and can be located on
11 # a floppy or usb device or on the cdrom
12 OLD_NODE_CONF_NAME=planet.cnf
13 NEW_NODE_CONF_NAME=plnode.txt
15 # one location of cd-based network configuration file
16 # (checked if floppy conf file missing and usb
17 # configuration file is missing)
18 CD_NET_CONF_BOOT=/usr/boot/$NEW_NODE_CONF_NAME
20 # the other location of cd-based network configuration file
21 CD_NET_CONF_ROOT=/usr/$NEW_NODE_CONF_NAME
23 # if all other network configuration file sources
24 # don't exist, fall back to this one (always on the cd)
25 FALLBACK_NET_CONF=/usr/boot/default-node.txt
27 # a temporary place to hold the old configuration file
28 # off of the floppy disk if we find it (so we don't have
29 # to remount the floppy later)
30 TMP_OLD_FLOPPY_CONF_FILE=/tmp/oldfloppy_planet.cnf
32 # once a configuration file is found, save it in /tmp
33 # (may be used later by boot scripts)
34 USED_NET_CONF=/tmp/planet.cnf
36 # default device to use for contacting PLC if not specified
37 # in the configuration file
40 # where to store the temporary dhclient conf file
41 DHCLIENT_CONF_FILE=/tmp/dhclient.conf
43 # which fs types we support finding node configuration files on
44 # (will be based as a -t parameter to mount)
45 NODE_CONF_DEVICE_FS_TYPES="msdos,ext2"
47 # a temporary place to mount devices that might contain configuration
49 CONF_DEVICE_MOUNT_POINT=/mnt/confdevice
50 /bin/mkdir -p $CONF_DEVICE_MOUNT_POINT
52 # for some backwards compatibility, save the ifconfig <device>
53 # output to this file after everything is online
54 IFCONFIG_OUTPUT=/tmp/ifconfig
56 # set to 1 if the default network configuration was loaded off the cd
57 # (no other configuration file found)
61 function net-init-failed() {
62 verbose-message "pl_netinit: network initialization failed with interface $ETH_DEVICE"
63 verbose-forensics "failed to configure $ETH_DEVICE"
64 hang-and-shutdown "net-init-failed"
68 # find and parse a node network configuration file. return 0 if not found,
69 # return 1 if found and parsed. if this is the case, DEFAULT_NET_CONF will
70 # be set to 1. For any found configuration file, $USED_NET_CONF will
71 # contain the validated contents
72 function find-node-config() {
73 /bin/rm -f $TMP_OLD_FLOPPY_CONF_FILE 2>&1 > /dev/null
75 verbose-message "pl_netinit: looking for node configuration file on floppy"
77 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES /dev/fd0 \
78 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
79 if [[ $? -eq 0 ]]; then
81 # 1. check for new named file first on the floppy disk
82 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
83 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
84 verbose-message "pl_netinit: found node configuration file $conf_file"
85 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
86 /bin/umount $CONF_DEVICE_MOUNT_POINT
89 # since we have the floppy mounted already, see if an old file
90 # exists there so we don't have to remount the floppy when we need
91 # to check for an old file on it (later in the order). if it does
92 # just copy it off to a special location
93 elif [ -r "$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME" ]; then
94 conf_file="$CONF_DEVICE_MOUNT_POINT/$OLD_NODE_CONF_NAME"
95 /bin/cp -f $conf_file $TMP_OLD_FLOPPY_CONF_FILE
96 verbose-message "pl_netinit: found old named configuration file, checking later."
98 verbose-message "pl_netinit: floppy mounted, but no configuration file."
101 /bin/umount $CONF_DEVICE_MOUNT_POINT
103 verbose-message "pl_netinit: no floppy could be mounted, continuing search."
106 # 2. check for a new named file on removable flash devices (those
107 # that start with sd*, because usb_storage emulates scsi devices).
108 # to prevent checking normal scsi disks, also make sure
109 # /sys/block/<dev>/removable is set to 1
111 verbose-message "pl_netinit: looking for node configuration file on flash based devices"
113 # make the sd* hd* expansion fail to an empty string if there are no sd
117 for device in /sys/block/[hsv]d*; do
118 removable=$(cat $device/removable)
119 if [[ $removable -ne 1 ]]; then
123 partitions=$(/bin/awk "\$4 ~ /$(basename $device)[0-9]*/ { print \$4 }" /proc/partitions)
124 for partition in $partitions ; do
125 check_dev=/dev/$partition
127 verbose-message "pl_netinit: looking for node configuration file on device $check_dev"
128 /bin/mount -o ro -t $NODE_CONF_DEVICE_FS_TYPES $check_dev \
129 $CONF_DEVICE_MOUNT_POINT 2>&1 > /dev/null
130 if [[ $? -eq 0 ]]; then
131 if [ -r "$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME" ]; then
132 conf_file="$CONF_DEVICE_MOUNT_POINT/$NEW_NODE_CONF_NAME"
133 verbose-message "pl_netinit: found node configuration file $conf_file"
134 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
135 verbose-message "pl_netinit: found configuration"
136 /bin/umount $CONF_DEVICE_MOUNT_POINT
140 verbose-message "pl_netinit: ERROR - not found"
142 /bin/umount $CONF_DEVICE_MOUNT_POINT
147 # normal filename expansion setting
150 # 3. see if there is an old file on the floppy disk. if there was,
151 # the file $TMP_OLD_FLOPPY_CONF_FILE will be readable.
152 if [ -r "$TMP_OLD_FLOPPY_CONF_FILE" ]; then
153 conf_file=$TMP_OLD_FLOPPY_CONF_FILE
154 verbose-message "pl_netinit: found node configuration file $conf_file"
155 /etc/init.d/pl_validateconf < $conf_file > $USED_NET_CONF
160 # 4. check for plnode.txt on the cd at /usr/boot
161 verbose-message "pl_netinit: looking for network configuration on cd in /usr/boot"
162 if [ -r "$CD_NET_CONF_BOOT" ]; then
164 verbose-message "pl_netinit: found cd configuration file $CD_NET_BOOT_CONF"
165 /etc/init.d/pl_validateconf < $CD_NET_CONF_BOOT > $USED_NET_CONF
170 # 5. check for plnode.txt on the cd at /usr
171 verbose-message "pl_netinit: looking for network configuration on cd in /usr"
172 if [ -r "$CD_NET_CONF_ROOT" ]; then
174 verbose-message "pl_netinit: found cd configuration file $CD_NET_CONF_ROOT"
175 /etc/init.d/pl_validateconf < $CD_NET_CONF_ROOT > $USED_NET_CONF
180 # 6. no node configuration file could be found, fall back to
181 # builtin default. this can't be used to install a machine, but
182 # will at least let it download and run the boot manager, which
183 # can inform the users appropriately.
184 verbose-message "pl_netinit: using default network configuration"
185 if [ -r "$FALLBACK_NET_CONF" ]; then
186 verbose-message "pl_netinit: found cd default configuration file $FALLBACK_NET_CONF"
187 /etc/init.d/pl_validateconf < $FALLBACK_NET_CONF > $USED_NET_CONF
196 verbose-message "pl_netinit: bringing loopback network device up"
197 /sbin/ifconfig lo 127.0.0.1 up
200 if [ $? -eq 0 ]; then
201 # no network configuration file found. this should not happen as the
202 # default cd image has a backup one. halt.
203 verbose-message "pl_netinit: ERROR - unable to find even a default network configuration"
204 verbose-message "pl_netinit: file, this cd may be corrupt."
208 # load the configuration file. if it was a default one (not user specified),
209 # then remove the saved copy from /tmp, but continue on. since a network
210 # configuration file is required and boot scripts only know about this location
211 # they will fail (as they should) - but the network will be up if dhcp is
214 verbose-message "pl_netinit: loading network configuration"
217 if [[ $DEFAULT_NET_CONF -eq 1 ]]; then
218 /bin/rm -f $USED_NET_CONF
221 # initialize IPMI device
222 if [[ -n "$IPMI_ADDRESS" ]] ; then
223 echo -n "pl_netinit: initializing IPMI: "
224 cmd="ipnmac -i $IPMI_ADDRESS"
225 if [[ -n "$IPMI_MAC" ]] ; then
226 cmd="$cmd -m $IPMI_MAC"
232 # now, we need to find which device to use (ie, eth0 or eth1). start out
233 # by defaulting to eth0, then see if the network configuration file specified
234 # either a mac address (in which case we will need to find the device), or
238 if [[ -n "$NET_DEVICE" ]]; then
239 # the user specified a mac address we should use. find the network
241 NET_DEVICE=$(tr A-Z a-z <<< $NET_DEVICE)
245 dev_address=$(cat $device/address | tr A-Z a-z)
246 if [ "$device" == "$NET_DEVICE" -o "$dev_address" == "$NET_DEVICE" ]; then
248 verbose-message "pl_netinit: found device $ETH_DEVICE with mac address $dev_address"
255 # if we didn't find a device yet, check which is the primary
256 if [[ -z "$ETH_DEVICE" ]]; then
257 pushd /etc/sysconfig/network-scripts > /dev/null
258 for conf in ifcfg-*; do
259 egrep -q '^PRIMARY=["'"'"']?[yY1t]' $conf || continue
260 ETH_DEVICE=${conf#ifcfg-}
266 # still nothing? fail the boot.
267 if [[ -z "$ETH_DEVICE" ]]; then
268 verbose-message "pl_netinit: unable to find a usable device, check to make sure"
269 verbose-message "pl_netinit: the NET_DEVICE field in the configuration file"
270 verbose-message "pl_netinit: corresponds with a network adapter on this system"
274 # within a systemd-driven startup, we often see this stage
275 # triggered before the network interface is actually exposed
277 # although of course we have network-online.target
278 # as a requirement; go figure what systemd actually does..
280 # in any case, let us try to work around that by allowing some delay
283 # tmp: Thierry June 2015
284 # on fedora 21 nodes we see this running in a context where eth0 is not known to the system
285 # could be related to a dependency that we poorly describe to systemd
286 # I am increasing this timeout to 1 minute in order to check that conjecture
290 if /sbin/ifconfig $ETH_DEVICE >& /dev/null; then
291 verbose-message "pl_netinit: device present $ETH_DEVICE, proceeding (${COUNTER}s/${ALLOW}s)"
294 verbose-message "pl_netinit: waiting for device $ETH_DEVICE - ${COUNTER}s/${ALLOW}s"
297 journalctl -b | egrep 'eth|bnx|udev'
298 systemctl list-unit-files | grep -i network
300 COUNTER=$(($COUNTER+1))
301 [ $COUNTER -ge $ALLOW ] && net-init-failed
306 # actually check to make sure ifconfig <device> succeeds
308 /sbin/ifconfig $ETH_DEVICE up 2>&1 > /dev/null || {
309 verbose-message "pl_netinit: device $ETH_DEVICE does not exist, most likely"
310 verbose-message "pl_netinit: this CD does not have hardware support for your"
311 verbose-message "pl_netinit: network adapter. please send the following lines"
312 verbose-message "pl_netinit: to your PlanetLab support for further assistance"
316 verbose-message "pl_netinit: attempting to start networking"
317 /sbin/service network start
319 # for backwards compatibility
320 /sbin/ifconfig $ETH_DEVICE > $IFCONFIG_OUTPUT
322 verbose-message "pl_netinit: network online"
324 # patch for f22 and above - if /etc/resolv.conf is empty or missing
325 function pl-netinit-patch-resolv-conf () {
328 # missing file : patch needed
329 if ! [ -f $file ]; then
331 # empty file : patch needed
333 contents=$(grep -v '^#' $file)
334 contents=$(echo $contents)
335 [ -z "$contents" ] && needed=true
337 if [ -z "$needed" ]; then
338 echo pl_netinit has no need to patch $file
342 verbose-message "pl_netinit: patching $file"
343 source /etc/sysconfig/network-scripts/ifcfg-${ETH_DEVICE}
344 # delete because it may be a symlink to /run/systemd/resolve/resolv.conf
345 # which looks really weird (ls -lL /etc/resolv.conf does not show anything)
347 # mention the DNS servers defined in the config - if any
348 [ -n "$DNS1" ] && echo nameserver $DNS1 >> $file
349 [ -n "$DNS2" ] && echo nameserver $DNS2 >> $file
350 # also add landmark for good measure
351 echo "nameserver 8.8.8.8" >> $file
354 pl-netinit-patch-resolv-conf /etc/resolv.conf
356 verbose-forensics "pl_netinit epilogue"