X-Git-Url: http://git.grml.org/?p=grml-terminalserver.git;a=blobdiff_plain;f=grml-terminalserver;h=82656f229ed6cd2ff9afb8e5d4dbb581c33a12c5;hp=050df3100418729a1807faaa55473ccdece1f84b;hb=ab36bc7a5485eb0998fe4112488ce49d4d41035b;hpb=3532250cadbf77f0c4172c723825c0f8b129f424 diff --git a/grml-terminalserver b/grml-terminalserver index 050df31..82656f2 100755 --- a/grml-terminalserver +++ b/grml-terminalserver @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/bash # Filename: terminalserver # Purpose: Program to do something # Authors: grml-team (grml.org), (c) Michael Gebetsroither @@ -52,9 +52,10 @@ COMMANDS: SERVICES: tftp Tftp daemon dhcp Dhcp daemon + ipt Iptables setup (snat for clients) nfs All necessary nfs daemons <> ALL services - + OPTIONS: -v verbose (show what is going on, v++) -h this help text @@ -109,17 +110,23 @@ function stopDhcp { start-stop-daemon --stop --quiet --pidfile "$DHCPD_PID_" rm -f $DHCPD_PID_ - rm -f /var/lib/dhcp3/dhcpd.leases* 2>/dev/null #FIXME - touch /var/lib/dhcp3/dhcpd.leases + # ugly but necessary :-/ + find /var/lib/dhcp* -type f -name dhcpd.leases -delete + local dhcpdir + for dhcpdir in /var/lib/dhcp* ; do + touch ${dhcpdir}/dhcpd.leases + done } + function startDhcp { local conf_file_="$DHCPD_CONFIG_FILE_" - + test -f $DHCPD_BIN_ || die "could not find dhcpd \"$DHCPD_BIN_\"" start-stop-daemon --start --quiet --pidfile "$DHCPD_PID_" \ --exec "$DHCPD_BIN_" -- -cf "$conf_file_" -q "$INTERFACE_" || warn "problems starting dhcpd" } + function runDhcp { isExistent "$DHCPD_CONFIG_FILE_" || \ @@ -131,6 +138,62 @@ function runDhcp } # }}} +# IPTABLES {{{ +function runIptables +{ + if [[ $IPTABLES_SNAT_ != "true" ]]; then + return + fi + startIptables +} + +function startIptables +{ + if [ -x /sbin/iptables ] ; then + if [[ $NAT_INTERFACE_ != "" ]]; then + local nat_source_ip_=`netGetIp "$NAT_INTERFACE_" warn` + + if iptables -t nat -vnL POSTROUTING | grep -q "SNAT.*${NAT_INTERFACE_}.*to:${nat_source_ip_}" ; then + echo "Rule for SNAT already present, nothing to be done." + else + echo "Setting up SNAT for terminalserver clients on ${NAT_INTERFACE_}:" + echo "* iptables -t nat -F POSTROUTING" + echo -n "* iptables -t nat -A POSTROUTING -o $NAT_INTERFACE_ -j SNAT --to-source $nat_source_ip_ ... " + { iptables -t nat -F POSTROUTING && \ + iptables -t nat -A POSTROUTING -o "$NAT_INTERFACE_" -j SNAT --to-source "$nat_source_ip_" ; } && \ + echo done || echo failed + fi + if [ `cat /proc/sys/net/ipv4/ip_forward` -eq 1 ]; then + echo "IP-Forwarding already enabled, nothing to be done." + else + echo -n "Enabling IP-Forwarding: " + echo 1 > /proc/sys/net/ipv4/ip_forward && echo done || echo failed + fi + fi + else + warn "iptables executable not avilable" + fi +} + +function stopIptables +{ + if [[ $IPTABLES_SNAT_ != "true" ]]; then + return + fi + if [ -x /sbin/iptables ] ; then + if [[ $NAT_INTERFACE_ != "" ]]; then + local nat_source_ip_=`netGetIp "$NAT_INTERFACE_" warn` + + if iptables -t nat -vnL POSTROUTING | grep -q "SNAT.*${NAT_INTERFACE_}.*to:${nat_source_ip_}" ; then + iptables -t nat -F POSTROUTING &>/dev/null && \ + iptables -t nat -D POSTROUTING -o "$NAT_INTERFACE_" -j SNAT --to-source "$nat_source_ip_" + fi + echo 0 > /proc/sys/net/ipv4/ip_forward + fi + fi +} +# }}} + # TFTP SERVICE {{{ function removeTftpConf { @@ -139,11 +202,15 @@ function removeTftpConf function createTftpConf { removeTftpConf - - execute "mkdir $TFTPD_DATA_DIR_/pxelinux.cfg" die + + execute "mkdir -p $TFTPD_DATA_DIR_/pxelinux.cfg" die execute "install -m 644 /usr/lib/syslinux/pxelinux.0 $TFTPD_DATA_DIR_" die execute "install -m 644 $PATH_/minirt26.gz $TFTPD_DATA_DIR_" die - execute "install -m 644 $KERNEL_IMAGE_ $TFTPD_DATA_DIR_/linux26" die + if [ -d "$MOUNT_POINT_"/boot/release ] ; then + cp -r "$MOUNT_POINT_"/boot/release "$TFTPD_DATA_DIR_" + else + execute "install -m 644 $KERNEL_IMAGE_ $TFTPD_DATA_DIR_/linux26" die + fi execute "install -m 644 $MEMTEST_IMAGE_ $TFTPD_DATA_DIR_/memtest" die execute "install -m 644 $PXE_BOOT_MSG_ $TFTPD_DATA_DIR_" die execute "install -m 644 $PXE_BOOT_LOGO_ $TFTPD_DATA_DIR_" die @@ -153,12 +220,12 @@ function createTftpConf function stopTftp { - start-stop-daemon --stop --quiet --name "${TFTPD_BIN_##*/}" + start-stop-daemon --stop --quiet -p "$TFTPD_PID_" } function startTftp { test -f $TFTPD_BIN_ || die "could not find \"$TFTPD_BIN_\"" - start-stop-daemon --start --quiet --exec "$TFTPD_BIN_" -- -l -a "$IP_" -s "$TFTPD_DATA_DIR_" || \ + start-stop-daemon --start --quiet --exec "$TFTPD_BIN_" -- --daemon --no-multicast --pidfile "$TFTPD_PID_" --bind-address "$IP_" "$TFTPD_DATA_DIR_" || \ warn "problems starting tftpd server" } function runTftp @@ -187,6 +254,7 @@ function startNfs /etc/init.d/nfs-common start # FIXME /etc/init.d/nfs-kernel-server start $USR_SHARE_/nfs-kernel-server start + echo createNfsConfig } @@ -217,22 +285,24 @@ function createConfig function actionStart { createConfig - - echo -n "Starting tftpd..." - runTftp - echo "done" - echo -n "Starting dhcpd..." - runDhcp - echo "done" - echo -n "Starting nfs..." - startNfs - echo "done" + + echo -n "Starting tftpd: " + runTftp && echo done || echo failed + + echo -n "Starting dhcpd: " + runDhcp && echo done || echo failed + + runIptables + + echo "Finally starting nfs services..." + startNfs && echo "Successfully finished startup of grml-terminalserver." || echo 'Startup of grml-terminalserver failed!' } function actionStop { stopTftp stopDhcp + stopIptables stopNfs notice "Terminal-server stopped" } @@ -267,6 +337,7 @@ function serviceStart "") actionStart ;; tftp) runTftp ;; dhcp) runDhcp ;; + ipt) startIptables ;; nfs) startNfs ;; *) warn "Service $service_ not available" ;; esac @@ -280,6 +351,7 @@ function serviceStop "") actionStop ;; tftp) stopTftp ;; dhcp) stopDhcp ;; + ipt) stopIptables ;; nfs) stopNfs ;; *) warn "Service $service_ not available" ;; esac @@ -326,7 +398,7 @@ PXE_BOOT_MSG_=\"$PXE_BOOT_MSG_\" PXE_BOOT_LOGO_=\"$PXE_BOOT_LOGO_\"" die "False configuration, please update $CONFIG_" fi - + case "$1" in clean) actionClean; exit 0 ;; esac @@ -340,7 +412,7 @@ while true; do "grml-terminalserver-config returned an error, do you want to quit now?" 5 75 && exit 1 else break - fi + fi done source $CONF_FILE_