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 ip address add dev lo 127.0.0.1/8
201 if [ $? -eq 0 ]; then
202 # no network configuration file found. this should not happen as the
203 # default cd image has a backup one. halt.
204 verbose-message "pl_netinit: ERROR - unable to find even a default network configuration"
205 verbose-message "pl_netinit: file, this cd may be corrupt."
209 # load the configuration file. if it was a default one (not user specified),
210 # then remove the saved copy from /tmp, but continue on. since a network
211 # configuration file is required and boot scripts only know about this location
212 # they will fail (as they should) - but the network will be up if dhcp is
215 verbose-message "pl_netinit: loading network configuration"
218 if [[ $DEFAULT_NET_CONF -eq 1 ]]; then
219 /bin/rm -f $USED_NET_CONF
222 # initialize IPMI device
223 if [[ -n "$IPMI_ADDRESS" ]] ; then
224 echo -n "pl_netinit: initializing IPMI: "
225 cmd="ipnmac -i $IPMI_ADDRESS"
226 if [[ -n "$IPMI_MAC" ]] ; then
227 cmd="$cmd -m $IPMI_MAC"
233 # now, we need to find which device to use (ie, eth0 or eth1). start out
234 # by defaulting to eth0, then see if the network configuration file specified
235 # either a mac address (in which case we will need to find the device), or
239 if [[ -n "$NET_DEVICE" ]]; then
240 # the user specified a mac address we should use. find the network
242 NET_DEVICE=$(tr A-Z a-z <<< $NET_DEVICE)
246 dev_address=$(cat $device/address | tr A-Z a-z)
247 if [ "$device" == "$NET_DEVICE" -o "$dev_address" == "$NET_DEVICE" ]; then
249 verbose-message "pl_netinit: found device $ETH_DEVICE with mac address $dev_address"
256 # if we didn't find a device yet, check which is the primary
257 if [[ -z "$ETH_DEVICE" ]]; then
258 pushd /etc/sysconfig/network-scripts > /dev/null
259 for conf in ifcfg-*; do
260 egrep -q '^PRIMARY=["'"'"']?[yY1t]' $conf || continue
261 ETH_DEVICE=${conf#ifcfg-}
267 # still nothing? fail the boot.
268 if [[ -z "$ETH_DEVICE" ]]; then
269 verbose-message "pl_netinit: unable to find a usable device, check to make sure"
270 verbose-message "pl_netinit: the NET_DEVICE field in the configuration file"
271 verbose-message "pl_netinit: corresponds with a network adapter on this system"
275 # within a systemd-driven startup, we often see this stage
276 # triggered before the network interface is actually exposed
278 # so allow for some small delay here
282 ### check if the interface is known
283 # instead of using ifconfig, check the kernel area
284 if [ -e /sys/class/net/$ETH_DEVICE ]; then
285 verbose-message "pl_netinit: device present $ETH_DEVICE"
288 verbose-message "pl_netinit: waiting for device $ETH_DEVICE - ${COUNTER}s/${ALLOW}s"
290 COUNTER=$(($COUNTER+1))
291 [ $COUNTER -ge $ALLOW ] && net-init-failed
296 # actually check to make sure ifconfig <device> succeeds
298 /usr/libexec/nm-ifup $ETH_DEVICE >& /dev/null || {
299 verbose-message "pl_netinit: device $ETH_DEVICE does not exist, most likely"
300 verbose-message "pl_netinit: this CD does not have hardware support for your"
301 verbose-message "pl_netinit: network adapter. please send the following lines"
302 verbose-message "pl_netinit: to your PlanetLab support for further assistance"
306 verbose-message "pl_netinit: attempting to start networking"
307 /sbin/service network start
309 # for backwards compatibility
310 /sbin/ifconfig $ETH_DEVICE > $IFCONFIG_OUTPUT
312 verbose-message "pl_netinit: network online"
314 # patch for f22 and above - if /etc/resolv.conf is empty or missing
315 function pl-netinit-patch-resolv-conf () {
318 # missing file : patch needed
319 if ! [ -f $file ]; then
321 # empty file : patch needed
323 contents=$(grep -v '^#' $file)
324 contents=$(echo $contents)
325 [ -z "$contents" ] && needed=true
327 if [ -z "$needed" ]; then
328 echo pl_netinit has no need to patch $file
332 verbose-message "pl_netinit: patching $file"
333 source /etc/sysconfig/network-scripts/ifcfg-${ETH_DEVICE}
334 # delete because it may be a symlink to /run/systemd/resolve/resolv.conf
335 # which looks really weird (ls -lL /etc/resolv.conf does not show anything)
337 # mention the DNS servers defined in the config - if any
338 [ -n "$DNS1" ] && echo nameserver $DNS1 >> $file
339 [ -n "$DNS2" ] && echo nameserver $DNS2 >> $file
340 # also add landmark for good measure
341 echo "nameserver 8.8.8.8" >> $file
344 pl-netinit-patch-resolv-conf /etc/resolv.conf
346 verbose-forensics "pl_netinit epilogue"