diff options
author | Eric Hameleers <alien@slackware.com> | 2017-01-23 14:33:46 +0100 |
---|---|---|
committer | Eric Hameleers <alien@slackware.com> | 2017-01-23 14:33:46 +0100 |
commit | dce5d0d1da24641670b607933804b524e2347980 (patch) | |
tree | 2d69e96114c382892ef0b9699fc7b813cf12267c /pxeserver | |
parent | 02530a4248ef80cf09681159e5c00daa4d49ed05 (diff) | |
download | liveslak-dce5d0d1da24641670b607933804b524e2347980.tar.gz liveslak-dce5d0d1da24641670b607933804b524e2347980.tar.xz |
Make it obvious that some scripts are templates and cannot be used as-is.
This affects:
- pxeserver
- setup2hd
Both have been renamed with extension '.tpl' as indication that they are
templates. The 'make_slackware_live.sh' script performs a series of
substitutions on them to produce the actual scripts inside the ISO.
Diffstat (limited to 'pxeserver')
-rwxr-xr-x | pxeserver | 714 |
1 files changed, 0 insertions, 714 deletions
diff --git a/pxeserver b/pxeserver deleted file mode 100755 index 1fcadcf..0000000 --- a/pxeserver +++ /dev/null @@ -1,714 +0,0 @@ -#!/bin/sh -# -# Copyright 2011, 2016, 2017 Eric Hameleers, Eindhoven, NL -# Copyright 2011 Patrick Volkerding, Sebeka, Minnesota USA -# All rights reserved. -# -# Redistribution and use of this script, with or without modification, is -# permitted provided that the following conditions are met: -# -# 1. Redistributions of this script must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# -# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED -# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO -# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; -# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, -# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR -# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF -# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -# -# Code used from SeTpxe and SeTnet scripts, part of the Slackware installer. -# --------------------------------------------------------------------------- - -# PXEserver works as follows: -# - It requires a wired network; wireless PXE boot is impossible. -# - The pxeserver script tries to find a wired interface; you can pass an -# explicit interfacename as parameter to the script (optional). -# - If multiple wired interfaces are detected, a dialog asks the user to -# select the right one. -# - A check is done for DHCP configuration of this wired interface; -# * If DHCP configuration is found then pxeserver will not start its own -# DHCP server and instead will rely on your LAN's DHCP server. -# * If no DHCP config is found, the script will ask permission to start -# its own internal DHCP server. -# Additionally the user will be prompted to configure an IP address for the -# network interface and IP range properties for the internal DHCP server. -# - The script will then start the PXE server, comprising of: -# * dnsmasq providing DNS, DHCP and BOOTP; -# * NFS and RPC daemons; -# - The script will detect if you have an outside network connection on -# another interface and will enable IP forwarding if needed, so that the -# PXE clients will also have network access. -# - The Live OS booted via pxelinux is configured with additional boot -# parameters: -# * nfsroot=${LOCAL_IPADDR}:/mnt/livemedia -# * luksvol= -# * nop -# * hostname=@DISTRO@ -# * tz=$(cat /etc/timezone) -# * locale=${SYSLANG:-"en_US.UTF-8"} -# * kbd=${KBD:-"us"} -# Which shows that the configuration of the Live OS where the PXE server -# runs is largely determining the configuration of the PXE clients. -# - Note that when networkbooting, the hostname of the Live OS will be -# suffixed with the machine's MAC address to make every network-booted -# Live OS unique. - -# -# Initialization: -# - -DEBUG=${DEBUG:-0} -DIALOG=dialog - -# Number of PXE clients we want to serve with our own DHCP server: -DEF_DHCP_RANGE=${DEF_DHCP_RANGE:-10} - -# Optional argument to the script is the name of the interface on which -# the PXE server should run: -INTERFACE="$1" - -# This variable will be used to determine if the network default gateway -# is reached through a second NIC in the computer, or not. -GLOBAL_GW_INT="" - -# In the above case, the global and local gateways will not be equal. -GLOBAL_GATEWAY="" -LOCAL_GATEWAY="" - -# The Slackware setup depends on english language settings because it -# parses program output like that of "fdisk -l". So, we need to override -# the Live user's local language settings here: -SYSLANG=$LANG -export LANG=C -export LC_ALL=C - -# Warn the user if the Live Media is inaccessible (however unlikely): -if [ ! -d /mnt/livemedia/@LIVEMAIN@/system ]; then - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "LIVE MEDIA NOT ACCESSIBLE" --msgbox "\ -\n\ -Before you can install software, complete the following tasks:\n\ -\n\ -1. Mount your Live media partition on /mnt/livemedia." 16 68 - exit 1 -fi - -TMP=/var/log/setup/tmp -if [ ! -d $TMP ]; then - mkdir -p $TMP -fi -rm -f $TMP/SeT* $TMP/pxe* -echo "on" > $TMP/SeTcolor # turn on color menus -PATH="$PATH:/usr/share/@LIVEMAIN@" -export PATH; -export COLOR=on - -# Add some eye candy for PXE clients: -if [ -d /mnt/livemedia/boot/syslinux ]; then - PXETXTSRC=/mnt/livemedia/boot/syslinux -elif [ -d /mnt/livemedia/boot/extlinux ]; then - PXETXTSRC=/mnt/livemedia/boot/extlinux -else - PXETXTSRC="" -fi -if [ -n "$PXETXTSRC" ]; then - ln -s ${PXETXTSRC}/message.txt /var/lib/tftpboot/ - ln -s ${PXETXTSRC}/f2.txt /var/lib/tftpboot/ - ln -s ${PXETXTSRC}/f3.txt /var/lib/tftpboot/ - ln -s ${PXETXTSRC}/f4.txt /var/lib/tftpboot/ -fi - -# -# Function definitions: -# - -# Function to convert the netmask from CIDR format to dot notation. -cidr_cvt() { - # Number of args to shift, 255..255, first non-255 byte, zeroes - set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0 - [ $1 -gt 1 ] && shift $1 || shift - echo ${1-0}.${2-0}.${3-0}.${4-0} -} - -# Function to convert the netmask from dot notation to CIDR format. -mask_cvt () -{ - # Assumes there's no "255." after a non-255 byte in the mask - local x=${1##*255.} - set -- 0^^^128^192^224^240^248^252^254^ $(( (${#1} - ${#x})*2 )) ${x%%.*} - x=${1%%$3*} - echo $(( $2 + (${#x}/4) )) -} - -# IP Address to integer conversion: -ip_to_int() { - IFS=. - set -f - set -- $1 - echo $(($1 << 24 | $2 << 16 | $3 << 8 | $4)) -} - -# Integer to IP Address conversion: -int_to_ip() { - echo $(($1>>24)).$(($1>>16&0xff)).$(($1>>8&0xff)).$(($1&0xff)) -} - -# The network interface IP configuration routine. -# Will be called if the interface was not configured by DHCP. -# It ends with a configured network interface: -devconfig() { - # Function accepts a parameter; if not given, use the global INTERFACE: - MYIF=${1:-"$INTERFACE"} - - # Determine a LAN range we are going to be using for the internal DHCP - # range that does not conflict with existing IP configuration: - if ! ip -f inet -o addr show |grep -v " lo " |grep -qw 192.168 ; then - MYIP="192.168.10.10" - elif ! ip -f inet -o addr show |grep -v " lo " |grep -qw 172.16 ; then - MYIP="172.16.10.10" - else - MYIP="10.10.10.10" - fi - - # Main loop IP configuration: - while [ 0 ]; do - - cat << EOF > $TMP/tempmsg - -You will need to enter the IP address you wish to -assign to interface ${MYIF}. Example: ${MYIP} - -What is your IP address? -EOF - if [ "x$LOCAL_IPADDR" = "x" ]; then # assign default - LOCAL_IPADDR=${MYIP} - fi - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "ASSIGN IP ADDRESS" --inputbox "$(cat $TMP/tempmsg)" 12 \ - 65 $LOCAL_IPADDR 2> $TMP/local - if [ ! $? = 0 ]; then - rm -f $TMP/tempmsg $TMP/local - return - fi - LOCAL_IPADDR="$(cat $TMP/local)" - rm -f $TMP/local - clear - cat << EOF > $TMP/tempmsg - -Now we need to know your netmask. -Typically this will be 255.255.255.0 -but this can be different depending on -your local setup. - -What is your netmask? -EOF - if [ "x$LOCAL_NETMASK" = "x" ]; then # assign default - LOCAL_NETMASK=${NETMASK:-255.255.255.0} - fi - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "ASSIGN NETMASK" --inputbox "$(cat $TMP/tempmsg)" 14 \ - 65 $LOCAL_NETMASK 2> $TMP/mask - if [ ! $? = 0 ]; then - rm -f $TMP/tempmsg $TMP/mask - return - fi - clear - LOCAL_NETMASK="$(cat $TMP/mask)" - rm $TMP/mask - - # GLOBAL_GATEWAY was determined right before calling this function: - if [ "x$GLOBAL_GATEWAY" = "x" ]; then - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --yesno "Do you have a gateway?" 5 30 - HAVE_GATEWAY=$? - clear - if [ $HAVE_GATEWAY -eq 0 ]; then - LOCAL_GATEWAY="$(echo $LOCAL_IPADDR | cut -f1-3 -d '.')." - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "ASSIGN GATEWAY ADDRESS" --inputbox \ - "\nWhat is the IP address for your gateway?" 9 65 \ - $LOCAL_GATEWAY 2> $TMP/gw - if [ ! $? = 0 ]; then - rm -f $TMP/tempmsg $TMP/gw - LOCAL_GATEWAY="" - else - LOCAL_GATEWAY="$(cat $TMP/gw)" - rm -f $TMP/gw - fi - fi - unset HAVE_GATEWAY - clear - elif [ "$GLOBAL_GW_INT" = "$MYIF" ]; then - LOCAL_GATEWAY=$GLOBAL_GATEWAY - fi - - cat << EOF > $TMP/tempmsg - -This is the proposed network configuration for $MYIF - -If this is OK, then select 'Yes'. -If this is not OK and you want to configure again, select 'No'. - -* IP Address: $LOCAL_IPADDR -* Netmask: $LOCAL_NETMASK -* Gateway: ${LOCAL_GATEWAY:-"$GLOBAL_GATEWAY (via $GLOBAL_GW_INT)"} -EOF - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --no-collapse --title "NETWORK CONFIGURATION" \ - --yesno "$(cat $TMP/tempmsg)" 14 68 - if [ $? -eq 1 ]; then - continue # New round of questions - fi - - #echo "Configuring ethernet card..." - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "INITIALIZING NETWORK" --infobox \ - "\nConfiguring your network interface $MYIF ..." 5 56 - - # We don't need this anymore: - dhcpcd -k $MYIF 1>/dev/null 2>&1 - rm -f /run/dhcpcd/dhcpcd-${MYIF}.pid - - # Broadcast and network are derived from IP and netmask: - LOCAL_BROADCAST=$(ipmask $LOCAL_NETMASK $LOCAL_IPADDR | cut -f 1 -d ' ') - LOCAL_NETWORK=$(ipmask $LOCAL_NETMASK $LOCAL_IPADDR | cut -f 2 -d ' ') - if [ -x /etc/rc.d/rc.networkmanager 2>/dev/null ]; then - # Use nmcli to reconfigure NetworkManager: - nmcli con add con-name pxe-${MYIF} ifname ${MYIF} type ethernet ip4 $LOCAL_IPADDR/$(mask_cvt $LOCAL_NETMASK) - if [ "x$GLOBAL_GATEWAY" = "x" -a "x$LOCAL_GATEWAY" != "x" ]; then - nmcli con mod pxe-${MYIF} ipv4.gateway $LOCAL_GATEWAY - fi - nmcli dev connect ${MYIF} - else - # Use ifconfig and route commands: - ifconfig $MYIF $LOCAL_IPADDR netmask $LOCAL_NETMASK broadcast $LOCAL_BROADCAST - if [ "x$GLOBAL_GATEWAY" = "x" -a "x$LOCAL_GATEWAY" != "x" ]; then - #echo "Configuring your gateway..." - route add default gw $LOCAL_GATEWAY metric 1 - fi - fi - echo $LOCAL_IPADDR > $TMP/SeTIP - echo $LOCAL_NETMASK > $TMP/SeTnetmask - echo $LOCAL_GATEWAY > $TMP/SeTgateway - clear - break - - done # end main loop IP configuration - -} # end devconfig() - -# The PXE Server configuration routine: -pxeconfig() { - - # This function accepts a parameter (network interface to configure). - # If no name was passed, we will do our best to find out ourselves. - - # Create empty PXE configuration file: - echo "" > $TMP/SeTpxe - - # Find out what interface we should be using. - # Did we get one passed as a parameter? - if [ "x$1" = "x" ]; then - # No parameter or it was empty; find out if we have a wired interface: - WIRED_INT="" - IINT=0 - for WINT in $(ls --indicator-style=none /sys/class/net |grep -v ^lo); do - if ! grep -q $WINT /proc/net/wireless ; then - WIRED_INT="$WIRED_INT $WINT" - IINT=$(( $IINT + 1 )) - fi - done - if [ $IINT -eq 0 ]; then - # Zero wired interfaces found - exit. - cat <<EOF > $TMP/tempmsg - -Could not find a wired network interface. \n\ -A PXE Server needs a configured network interface to work.\n\ - -EOF - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "MISSING NETWORK DEVICE" --msgbox "$(cat $TMP/tempmsg)" -8 68 - rm -f $TMP/tempmsg - exit 1 - elif [ $IINT -eq 1 ]; then - # Exactly one wired interfaces found - use it. - INTERFACE=$(echo $WIRED_INT) # get rid of the space - else - # Multiple wired interfaces found - let the user select one: - rm -f $TMP/iflist - for WINT in $WIRED_INT ; do - DRIVERTXT="IP=$(ip -f inet -o addr show ${WINT} |tr -s ' ' |head -1 |cut - f4 -d' ' |cut -f1 -d/)" - if cat /sys/class/net/$WINT/device/uevent 1>/dev/null 2>/dev/null ; then - DRIVERTXT="$DRIVERTXT driver=$(grep "DRIVER=" /sys/class/net/$WINT/device/uevent |cut -f2 -d=)" - fi - echo "$WINT \"network interface ($DRIVERTXT)\"" >> $TMP/iflist - done - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "SELECT NETWORK INTERFACE" \ - --menu \ -"Select an option below using the UP/DOWN keys and SPACE or ENTER.\n\ -Alternate keys may also be used: '+', '-', and TAB." 13 72 9 \ - --file $TMP/iflist \ - 2> $TMP/intset - INTERFACE="$(cat $TMP/intset)" - rm $TMP/intset $TMP/iflist - fi - fi # End undefined INTERFACE - - # - # We now know what network interface to use. - # - - # If dhcpcd is running, it likely has a lease from a LAN DHCP server, - # so we should not activate another DHCP server ourselves now: - if [ -s /run/dhcpcd/dhcpcd-${INTERFACE}.pid -a -n "$(ps -q $(cat /run/dhcpcd/dhcpcd-${INTERFACE}.pid) -o comm=)" ]; then - OWNDHCP="no" - else - # Assume nothing... we will ask the user for confirmation later! - OWNDHCP="yes" - fi - - # If $INTERFACE != $GLOBAL_GW_INT then we are dealing with a dual-nic setup - # and later on we can suggest configuring (NAT) routing: - GLOBAL_GW_INT=$(ip -f inet -o route show default |grep -v linkdown |head -1 |tr -s ' ' |cut -f5 -d' ') - GLOBAL_GATEWAY=$(ip -f inet -o route show default |grep -v linkdown |head -1 |tr -s ' ' |cut -f3 -d' ') - - # - # Start the interactive part: - # - - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --backtitle "@CDISTRO@ Linux Live PXE Server." \ - --title "WELCOME TO PXE CONFIGURATION" --msgbox "\ -We will be asking you a few questions now.\n\ -The answers will be used to start a PXE service on this computer \ -which does not interfere with other services in your network.\ -\n\ -The only assumption is, that there is NO PXE service already \ -running on your local network at this moment. -\n\ -If in doubt, stick with the defaults." 0 0 - - if [ "$OWNDHCP" = "yes" ]; then - # Be extra safe. Do not start a DHCP server if the user denies it: - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "ENABLE DHCP SERVER" --yesno " \ -Network interface ${INTERFACE} did not get an IP address from a DHCP server. \ -Slackware's PXE server starting on ${INTERFACE} needs a working DHCP server.\n\ -Do you want this computer to start its own DHCP server on ${INTERFACE} \ -(you can control what IP addresses are used by the DHCP server)?\n\ -Say 'YES' if you are certain your network interface ${INTERFACE} is -not in reach of any DHCP server." 13 68 - if [ $? = 0 ]; then - OWNDHCP="yes" - else - OWNDHCP="no" - fi - fi - - # Assemble the network parameters: - LOCAL_IPADDR=$(ip -f inet -o addr show ${INTERFACE} |tr -s ' ' |head -1 |cut -f4 -d' ' |cut -f1 -d/) - if [ "x$LOCAL_IPADDR" = "x" ]; then # no IP Address was configured?!? - cat <<EOF > $TMP/tempmsg - -Next step is to define an IP address for network interface ${INTERFACE}. \n\ -A PXE Server needs a configured network interface to work.\n\ - -EOF - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "UNCONFIGURED NETWORK DEVICE" --msgbox "$(cat $TMP/tempmsg)" 9 68 - rm -f $TMP/tempmsg - # Run the static IP configuration routine for $INTERFACE: - devconfig ${INTERFACE} - else - # DHCP configured interface, we assume that the default gaeway is here. - LOCAL_GATEWAY=$GLOBAL_GATEWAY - fi - - # OK we have an IP Address, let's continue. - LOCAL_NETMASK=$(ip -f inet -o addr show ${INTERFACE} |tr -s ' ' |head -1 |cut -f4 -d' ' |cut -f2 -d/) - LOCAL_NETMASK=$(cidr_cvt $LOCAL_NETMASK) - LOCAL_BROADCAST=$(ipmask $LOCAL_NETMASK $LOCAL_IPADDR |cut -f 1 -d ' ') - LOCAL_NETWORK=$(ipmask $LOCAL_NETMASK $LOCAL_IPADDR |cut -f 2 -d ' ') - - if [ "$OWNDHCP" = "yes" ]; then - # Find out a suitable IP address range for the DHCP server. Involves magic: - I_LOCAL_IPADDR=$(ip_to_int "$LOCAL_IPADDR") - I_LOCAL_NETMASK=$(ip_to_int "$LOCAL_NETMASK") - I_MINLEASE_IP=$(( ($I_LOCAL_IPADDR & $I_LOCAL_NETMASK) + 1 )) - I_MAXLEASE_IP=$(( ($I_LOCAL_IPADDR | ${I_LOCAL_NETMASK}^0xffffffff) - 1 )) - if [ $(( $I_MAXLEASE_IP - $I_LOCAL_IPADDR )) -ge $DEF_DHCP_RANGE ]; then - # Use $DEF_DHCP_RANGE IP addresses in the top of the address range: - I_MINLEASE_IP=$(( $I_MAXLEASE_IP - $(($DEF_DHCP_RANGE - 1)) )) - elif [ $(($I_LOCAL_IPADDR - $I_MINLEASE_IP)) -ge $DEF_DHCP_RANGE ]; then - # Use $DEF_DHCP_RANGE IP addresses in the bottom of the address range: - I_MAXLEASE_IP=$(( $I_MINLEASE_IP + $(($DEF_DHCP_RANGE - 1)) )) - else - # Smaller range available than we wanted, use what we can get: - I_MINLEASE_IP=$(( $I_LOCAL_IPADDR + 1 )) - fi - - MINLEASE_IP=$(int_to_ip "$I_MINLEASE_IP") - MAXLEASE_IP=$(int_to_ip "$I_MAXLEASE_IP") - - while [ 0 ]; do - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - ( $DIALOG --stdout --backtitle "@CDISTRO@ Linux Live PXE Server." \ - --title "DHCP SERVER CONFIGURATION" \ - --cancel-label Restart \ - --form "\ -The PXE Service is going to run on $INTERFACE with these values \ -(the defaults should be OK). \n\ -You can change the range of IP addresses used by the DHCP server, if \ -IP addresses in the proposed range are used by computers in your LAN. \ -For instance, your default gateway if you have one. \n\ -\n\ -Also note that we will not validate any changes you make:" \ - 18 68 0 \ - "IP Address:" 1 1 "$LOCAL_IPADDR" 1 30 0 0 \ - "Netmask:" 2 1 "$LOCAL_NETMASK" 2 30 0 0 \ - "Gateway:" 3 1 "$LOCAL_GATEWAY" 3 30 0 0 \ - "Lowest DHCP Client Address:" 4 1 "$MINLEASE_IP" 4 30 15 0 \ - "Highest DHCP Client Address:" 5 1 "$MAXLEASE_IP" 5 30 15 0 \ - ) > $TMP/tempopts - - if [ $? = 0 ]; then - # Remember... busybox ash is no good with arrays :/ - local i=0 - rm -f $TMP/tempkeys - cat $TMP/tempopts | while read VALUE ; do - if [ $i = 0 ]; then echo "MINLEASE_IP=\"$VALUE\"" >> $TMP/tempkeys - elif [ $i = 1 ]; then echo "MAXLEASE_IP=\"$VALUE\"" >> $TMP/tempkeys - fi - i=$(expr $i + 1) - done - eval $(cat $TMP/tempkeys) - rm $TMP/tempopts - break - fi - done - else - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --backtitle "@CDISTRO@ Linux Live PXE Server." \ - --title "DHCP SERVER CONFIGURATION" --msgbox "\ -\n\ -PXE server has been configured to use a DHCP server in your network.\n\ -\n\ -Press ENTER to continue." 14 68 - fi # [ "$OWNDHCP" = "yes" ] - - echo "DHCP=${OWNDHCP}" >> $TMP/SeTpxe - echo "GLOBAL_GATEWAY=${GLOBAL_GATEWAY}" >> $TMP/SeTpxe - echo "GLOBAL_GW_INT=${GLOBAL_GW_INT}" >> $TMP/SeTpxe - echo "LOCAL_IPADDR=${LOCAL_IPADDR}" >> $TMP/SeTpxe - echo "LOCAL_NETMASK=${LOCAL_NETMASK}" >> $TMP/SeTpxe - echo "LOCAL_GATEWAY=${LOCAL_GATEWAY}" >> $TMP/SeTpxe - echo "LOCAL_BROADCAST=${LOCAL_BROADCAST}" >> $TMP/SeTpxe - echo "LOCAL_NETWORK=${LOCAL_NETWORK}" >> $TMP/SeTpxe - echo "MINLEASE_IP=${MINLEASE_IP}" >> $TMP/SeTpxe - echo "MAXLEASE_IP=${MAXLEASE_IP}" >> $TMP/SeTpxe - - # Write out a suitable dnsmasq configuration: - cat <<EOF > ${TMP}/pxe_dnsmasq.conf -# Only listen at our designated interface: -listen-address=$LOCAL_IPADDR - -# Write the pid file: -pid-file=${TMP}/pxe_dnsmasq.pid - -# Start a TFTP server: -enable-tftp - -# Set the root directory for files available via FTP: -tftp-root=/var/lib/tftpboot - -# The boot filename: -dhcp-boot=/pxelinux.0 - -# Disable re-use of the DHCP servername and filename fields as extra -# option space. That's to avoid confusing some old or broken DHCP clients. -dhcp-no-override - -# Log connections so that we can display them on the console: -log-facility=/var/log/pxe_dnsmasq.log -log-dhcp - -# Custom path for the leases file: -dhcp-leasefile=$TMP/pxe_dnsmasq.leases - -# Craft a nice PXE menu: -pxe-prompt="Press F8 for boot menu", 3 - -# The known types are x86PC, PC98, IA64_EFI, Alpha, Arc_x86, -# Intel_Lean_Client, IA32_EFI, BC_EFI, Xscale_EFI and X86-64_EFI -pxe-service=X86PC, "Boot from network", /var/lib/tftpboot/pxelinux - -# A boot service type of 0 is special, and will abort the -# net boot procedure and continue booting from local media. -pxe-service=X86PC, "Boot from local hard disk", 0 - -EOF - - if [ -n "$LOCAL_GATEWAY" -a "$INTERFACE" = "$GLOBAL_GW_INT" ]; then - # The default gw can be reached through our $INTERFACE. - cat <<EOF >> ${TMP}/pxe_dnsmasq.conf -# Override the default route supplied by dnsmasq, which assumes the -# router is the same machine as the one running dnsmasq. -#dhcp-option=option:router,${LOCAL_GATEWAY} -dhcp-option=3,${LOCAL_GATEWAY} - -EOF - else - # The default gw is reached through a second interface on the computer. - # We need to build a router, a bridge or a NAT firewall between the two. - cat <<EOF >> ${TMP}/pxe_dnsmasq.conf -# Apply the default route supplied by dnsmasq, which assumes the -# router is the same machine as the one running dnsmasq. -# And we want to let our PXE clients use $INTERFACE as the default gw. -#dhcp-option=option:router,${LOCAL_IPADDR} - -EOF - fi - - if [ "$OWNDHCP" = "yes" ]; then - cat <<EOF >> ${TMP}/pxe_dnsmasq.conf -# dnsmasq functions as a normal DHCP server, providing IP leases. -dhcp-range=${MINLEASE_IP},${MAXLEASE_IP},${LOCAL_NETMASK},1h - -EOF - else - cat <<EOF >> ${TMP}/pxe_dnsmasq.conf -# There is an existing DHCP server on this LAN, so dnsmasq functions -# as a proxy DHCP server providing boot information but no IP leases. -# Any ip in the subnet will do, so you may just put your server NIC ip here. -dhcp-range=${LOCAL_IPADDR},proxy - -EOF - fi - - # Create the pxelinux configuration file: - KBD=$(sed -n "s%^ */usr/bin/loadkeys *%%p" /etc/rc.d/rc.keymap 2>/dev/null) - cat <<EOF > /var/lib/tftpboot/pxelinux.cfg/default -default pxelive -prompt 1 -timeout 300 -display message.txt -F1 message.txt -F2 f2.txt -F3 f3.txt -F4 f4.txt -label pxelive - kernel /generic - append initrd=/initrd.img load_ramdisk=1 prompt_ramdisk=0 rw printk.time=0 nfsroot=${LOCAL_IPADDR}:/mnt/livemedia luksvol= nop hostname=@DISTRO@ tz=$(cat /etc/timezone) locale=${SYSLANG:-"en_US.UTF-8"} kbd=${KBD:-"us"} -EOF - -} # end of pxeconfig() - -# -------------------------------------------------------- # -# Above was just initialization and function definitions. # -# Let's make use of all that. # -# ---------------------------------------------------------# - -# Main loop: -while [ 0 ]; do - - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "@CDISTRO@ Linux Live PXE Server (version current)" \ - --menu \ -"Welcome to @CDISTRO@ Linux Live PXE Server.\n\ -Select an option below using the UP/DOWN keys and SPACE or ENTER.\n\ -Alternate keys may also be used: '+', '-', and TAB." 13 72 9 \ -"NETWORK" "Configure your network parameters" \ -"ACTIVATE" "Activate the @CDISTRO@ PXE Server" \ -"EXIT" "Exit @CDISTRO@ PXE Setup" 2> $TMP/hdset - if [ ! $? = 0 ]; then - rm -f $TMP/hdset $TMP/SeT* - exit - fi - MAINSELECT="`cat $TMP/hdset`" - rm $TMP/hdset - - # Start checking what to do. Some modules may reset MAINSELECT to run the - # next item in line. - - if [ "$MAINSELECT" = "NETWORK" ]; then - # Set up our network. We may not know anything yet in which case - # the variable $INTERFACE will be empty. - pxeconfig $INTERFACE - if [ -r $TMP/SeTpxe ]; then - MAINSELECT="ACTIVATE" - fi - fi - - if [ "$MAINSELECT" = "ACTIVATE" ]; then - if [ ! -r $TMP/SeTpxe ]; then - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "CANNOT START PXE SERVER YET" --msgbox "\ -\n\ -Before you can start the PXE Server, complete the following task:\n\ -\n\ -(*) Set up your computer's network parameters.\n\ -\n\ -Press ENTER to return to the main menu." 14 68 - continue - else - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --title "READY TO START PXE SERVER" --msgbox "\ -\n\ -Ready to start the PXE Server!\n\ -The PXE server log will be displayed in the next screen. -\n\ -Press ENTER to start." 14 68 - fi - - # Time to start the BOOTP/TFTP/NFS servers: - echo > /var/log/pxe_dnsmasq.log - dnsmasq -C ${TMP}/pxe_dnsmasq.conf -z -i ${INTERFACE} - if ! grep -q "^/mnt/livemedia" /etc/exports ; then - # Without 'fsid' nfsd refuses to export the filesystem if it RAM based; - # the number '14' could be any unique low-range number: - cat <<EOT >> /etc/exports -/mnt/livemedia ${LOCAL_NETWORK}/${LOCAL_NETMASK}(ro,sync,insecure,no_subtree_check,root_squash,fsid=14) -EOT - fi - sh /etc/rc.d/rc.nfsd restart - if [ "$INTERFACE" != "$GLOBAL_GW_INT" ]; then - # The default gateway for this computer is on another interface; - # we need to enable forwarding: - OLDROUTING=$(cat /proc/sys/net/ipv4/ip_forward) - echo 1 > /proc/sys/net/ipv4/ip_forward - # also start the route daemon: - if [ -z "$(pidof routed)" ]; then - /usr/sbin/routed -g -s - fi - else - OLDROUTING="" - fi - - if [ $DEBUG -ne 0 ]; then read -p "Press ENTER to continue: " JUNK ; fi - $DIALOG --backtitle "Slackware PXE Server." \ - --title "PXE Client activity log" \ - --ok-label "EXIT" \ - --tailbox /var/log/pxe_dnsmasq.log 20 68 - - # Time to kill the BOOTP/TFTP/NFS servers: - [ -n "$OLDROUTING" ] && echo $OLDROUTING > /proc/sys/net/ipv4/ip_forward - kill -TERM $(cat ${TMP}/pxe_dnsmasq.pid) - sh /etc/rc.d/rc.nfsd stop - sed -i -e "s%^/mnt/livemedia.*%#&%" /etc/exports - fi - - if [ "$MAINSELECT" = "EXIT" ]; then - clear - break - fi - -done # end of main loop - -# end @CDISTRO@ Linux Live PXE Server script - |