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-rwxr-xr-xsrc/boot-env/pbs/rootfs/init234
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diff --git a/src/boot-env/pbs/rootfs/init b/src/boot-env/pbs/rootfs/init
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+#!/bin/ash
+# Copyright (c) 2008..2009 - OpenSLX GmbH
+#
+# This program is free software distributed under the GPL version 2.
+# See http://openslx.org/COPYING
+#
+# If you have any feedback please consult http://openslx.org/feedback and
+# send your feedback to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org
+#
+# Main script for preboot initial ramfs - preloading environment for running
+# OpenSLX linux stateless clients version 5.
+
+fetchip () {
+# we expect to get an ip address within 10++ seconds
+( sleep 6 ; killall udhcpc >/dev/null 2>&1 ) &
+for i in 1 2 ; do
+ udhcpc -f -n -q $vci -s /usr/share/udhcpc/default.script -i $nwif 2>/dev/null
+ if grep "ip=" /tmp/ipstuff >/dev/null 2>&1 ; then
+ . /tmp/ipstuff
+ for ns in $dns ; do
+ echo "nameserver $ns" >>/etc/resolv.conf
+ done
+ # simply add a single dns server for passing via kernel cmdline to stage3
+ # (quickhack, just the last, list of dns might be better ...)
+ echo "dnssrv=$ns" >>/tmp/ipstuff
+ return
+ else
+ if [ $i -eq 1 ] ; then
+ sleep 1
+ else
+ dialog --msgbox "Did not get any proper IP configuration: Please check \
+that your Ethernet card is supported, the machine is connected to the network \
+and a DHCP server is answering your requests." 7 65
+ ash
+ echo "o" >/proc/sysrq-trigger
+ fi
+ fi
+done
+}
+
+#############################################################################
+# PreBoot init main part
+
+# device files get their own filesystem
+devdir="/dev"
+mount -n -t tmpfs -o 'size=25%,mode=0755' mdev ${devdir}
+mkdir -p /dev/pts
+mount -t devpts devpts /dev/pts
+echo /sbin/mdev > /proc/sys/kernel/hotplug
+cat > /etc/mdev.conf << "EOF"
+sda* 0:6 0660
+sdb* 0:6 0660
+sg* 0:6 0660
+hda* 0:6 0660
+hdb* 0:6 0660
+EOF
+
+mdev -s
+
+export DEBUGLEVEL=0
+
+# create basic device files an directories in dev
+for i in "/dev/mem c 1 1" "/dev/null c 1 3" "/dev/zero c 1 5" \
+ "/dev/urandom c 1 9" "/dev/kmsg c 1 11" "/dev/tty0 c 4 0" \
+ "/dev/tty1 c 4 1" "/dev/tty2 c 4 2" "/dev/tty3 c 4 3" \
+ "/dev/tty4 c 4 4" "/dev/tty5 c 4 5" "/dev/tty6 c 4 6" \
+ "/dev/tty7 c 4 7" "/dev/tty8 c 4 8" "/dev/tty9 c 4 9" \
+ "/dev/tty10 c 4 10" "/dev/tty c 5 0" "/dev/console c 5 1" \
+ "/dev/ptmx c 5 2" "/dev/psaux c 10 1" "/dev/agpgart c 10 175" \
+ "/dev/fb0 c 29 0" "/dev/bootsplash p" "/dev/xconsole p"; do
+ mknod $i
+done
+mkdir -p ${devdir}/pts ${devdir}/shm
+export PATH=/bin:/sbin:/usr/bin/:/usr/sbin
+
+# redirect kernel messages to tty10 instead of tty1
+getty -i -n -l /bin/cat 38400 tty10 &
+setlogcons 10
+
+# initramfs-setup configuration (common settings for all clients using a
+# certain InitRamFS generated by slxmkramfs/mkdxsinitrd)
+[ -f /etc/initramfs-setup ] && . /etc/initramfs-setup 2>/dev/null
+
+# set a default LAN interface, has to be modified for WLAN or on machines
+# with more than one ethernet card built in
+nwif="eth0"
+
+# mount the important standard directories
+[ ! -f /proc/cpuinfo ] && mount -n -t proc proc /proc
+[ ! -d /sys/class ] && mount -n -t sysfs sysfs /sys
+
+# load framebuffer modules if needed
+for mod in vesafb fbcon; do
+ if [ x != x$(find /lib/modules -name ${mod}.ko) ]; then
+ modprobe $mod || \
+ dialog --infobox "Module $mod did not load for some reason." 3 65
+ usleep 1000
+ fi
+done
+
+# give startup information
+dialog --infobox "Starting OpenSLX preboot environment ..." 3 65
+
+# load usb keyboard and network adaptor modules
+for mod in ${ramfs_nicmods} af_packet unix hid hid-bright usbhid \
+ uhci-hcd ohci-hcd ; do
+ if [ x != x$(find /lib/modules -name ${mod}.ko) ]; then
+ modprobe $mod || \
+ dialog --infobox "Module $mod did not load for some reason." 3 65
+ usleep 10000
+ fi
+done
+
+# set the default for boot type and read kernel commandline (for this and
+# other options)
+export TYPE=fastboot
+read KCMDLINE </proc/cmdline
+# read the system wide machine-setup and then the kernel commandline
+for opts in ${KCMDLINE} ; do
+ case ${opts} in
+ debug)
+ DEBUGLEVEL=1;;
+ # ... or a specified debug level (will be passed to next stage)
+ debug=*)
+ DEBUGLEVEL=${opts#debug=};;
+ # WLAN ssid (most probably passed that way, unused yet ...)
+ ssid=*)
+ SSID=${opts#SSID=};;
+ # Boot type (fastboot)/directkiosk/cfgkiosk/slxconfig
+ type=*)
+ TYPE=${opts#type=};;
+ pbsId=*)
+ PBS_ID=${opts#pbsId=};;
+ esac
+done
+
+# start a watchdog to ensure an automated reboot or halt of the machine if the
+# preboot init does not succeed (e.g. missing kernel module/firmware for the
+# network adaptor)
+if [ "${DEBUGLEVEL}" -eq 0 ] ; then
+ cat<<EOF >/bin/watchdog
+#!/bin/ash
+echo \$$ > /tmp/watchdogpid
+[ ! -f /proc/version ] && mount -n -t proc proc /proc
+sleep 120 2>/dev/null
+echo "o" >/proc/sysrq-trigger
+EOF
+ chmod u+x /bin/watchdog
+ watchdog &
+else
+ getty -i -n -l /bin/ash 38400 tty2 &
+fi
+
+if [ -n "${SSID}" ] ; then
+ # WLAN setup will most probably change the network interface name stored in
+ # nwif (to wlan0 or something like that)
+ [ $DEBUGLEVEL -gt 0 ] && echo "set essid to ${essid}";
+ #value of essid unchecked yet
+ # load network adaptor modules
+ cd /lib/modules/$(ls /lib/modules/)/kernel/drivers/net/wireless
+ for mod in $(find . | grep .ko | sed 's,.*/\([^/]*\).ko,\1',); do
+ echo "Mod:";
+ echo $mod;
+ modprobe $mod || echo "module $mod did not load for some reason"
+ usleep 10000
+ done
+ cd /
+ wlanif=$(iwconfig 2>/dev/null|sed -n "/ESSID:/p"|sed "s/ .*//")
+ [ $DEBUGLEVEL -gt 0 ] && echo "wlancard recognized as ${wlanif}";
+ ip link set dev ${wlanif} up
+ if iwconfig ${wlanif} mode managed essid "${essid}"; then
+ nwif=${wlanif}
+ else
+ error " Unable to configure the WLAN interface."
+ fi
+ :
+else
+ # check here for the active Ethernet link
+ ip link show dev eth1 >/dev/null 2>&1 && \
+ dialog --msgbox "More than one network interface found. This could cause \
+some trouble as their activation and ordering depends on the module load \
+order ..." 7 65
+fi
+
+# set up loopback networking and power up ethernet
+ip link set dev lo up
+ip addr add 127.0.0.1/8 dev lo
+ip link set dev $nwif up || echo "I did not find any usable network adaptor."
+
+# run udhcpc and start a debug shell if no lease could be obtained
+mkdir -p /usr/share/udhcpc
+echo -e "#!/bin/ash\nunset infomsg HOME IFS mask lease interface DEBUGLEVEL \
+BOOT_IMAGE\nset >/tmp/ipstuff" >/usr/share/udhcpc/default.script
+chmod u+x /usr/share/udhcpc/default.script
+modprobe -q af_packet
+[ -n $vci ] && vci="-V $vci"
+fetchip
+ip addr add $ip/$(ipcalc -s -p $ip $subnet|sed s/.*=//) dev $nwif
+ip route add default via $router
+
+# get the mac address of the boot network adaptor
+macaddr=$(ip link show dev $nwif 2>/dev/null | \
+ sed -n "/ether [0-9e-f]\{2\}:.*/p" | sed -e "s/.*ether //;s/ .*//")
+echo "macaddr=$macaddr" >>/etc/initramfs-setup
+
+# at this point a little selection script could be downloaded, which lets the
+# user choose what kind of SLX client he wants to get
+dialog --infobox "Fetching preboot interactive part and configuration from \
+the net ($boot_uri) ..." 4 65
+mkdir -p /preboot
+wget -q -O /preboot/preboot.init ${boot_uri}bootloader/env/getinit/formedia/$PBS_ID
+chmod u+x /preboot/preboot.init
+
+echo "pbs_id=$PBS_ID" >> /etc/pbs.conf
+
+# start a debug shell if needed, else set quiet kernel parameter
+if [ "${DEBUGLEVEL}" -gt 0 ] ; then
+ echo "Starting shell, leaving it would continue init."
+ /bin/ash
+else
+ # no debugging output for stage3 run
+ echo "quiet=quiet" >>/etc/initramfs-setup
+fi
+# run the preboot interactive part which finally will execute kexec
+cd /preboot
+exec ./preboot.init
+# we should never return from that one ...
+dialog --msgbox "The execution of the main preboot component failed. Please \
+check network access of your box. Is $boot_uri reachable!?" 6 65
+# ping -c 1 $boot_uri
+sleep 20 && echo "o" >/proc/sysrq-trigger
+