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#!/bin/sh
# Copyright (c) 2013 - 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 under http://openslx.org
#
# Fetch configuration from server ...
#############################################################################
# Depends on configured networking, provides configuration
# Todo: rewrite for next-gen system - principle would be the same ...
# Function for retrieving configuration file (machine-setup) via tftp from a
# predefined server or given source (file=tftp-server:/path via kernel
# command line)
unpack () {
# $1 is config file name to get, $2 IP of server to get file from
local dst=$1
if [ -s $dst ] ; then
# fixme: handle different types of packaging (gzip/bzip2)??
if ! tar -xpzf $dst 2> /tmp/ConfTGZ-tar-error ; then
cat /tmp/ConfTGZ-tar-error
error "$unpack_ConfTGZ" nonfatal
rm /tmp/ConfTGZ-tar-error
fi
[ "$DEBUGLEVEL" -le 2 -o "$DEBUGLEVEL" -eq 8 ] && rm $dst
return 0
else
return 1
fi
}
# tftp wrapper
# usage tftp_get <path> <tftpdserver> [count]
# count is optional - default is 3 - use -1 for indefinit
tftp_get () {
local file="$1"
local file_server="$2"
local download_successful=0
local countdown="$3"
if [ -z "$1" -o -z "$2" ]; then
[ $DEBUGLEVEL -ge 1 ] && \
echo "[tftp_get] Usage: tftp_get <path> <server> [count]"
return 1;
fi
[ "$countdown" = "" ] && countdown=3
until [ $download_successful -eq 1 ]
do
if [ "$countdown" = "0" ]; then
[ $DEBUGLEVEL -ge 1 ] && \
echo "[tftp_get] download of \"$file\" from \"$file_server\" ... failed"
return 0;
fi
tftp -g -r "/$file" -l /tmp/$(basename $file) $file_server
[ -s /tmp/$(basename $file) ] && download_successful=1
countdown=$(expr $countdown - 1)
usleep 200000
done
[ $DEBUGLEVEL -ge 1 ] && \
echo "[tftp_get] download of \"$file\" from \"$file_server\" ... successful"
return 0;
}
# wget wrapper
# usage wget_get <path> <ftp/httpserver> [count]
# count is optional - default is 3 - use -1 for indefinit
wget_get () {
local file="$1"
local file_server="$2"
local download_successful=0
local countdown="$3"
if [ -z "$1" -o -z "$2" ]; then
[ $DEBUGLEVEL -ge 1 ] && \
echo "[wget_get] Usage: wget_get <path> <server> [count]"
return 1;
fi
[ "$countdown" = "" ] && countdown=3
until [ $download_successful -eq 1 ]
do
if [ "$countdown" = "0" ]; then
[ $DEBUGLEVEL -ge 1 ] && \
echo "[wget_get] download of \"$file\" from \"$file_server\" ... failed"
return 0;
fi
wget -q $file_server$file -O /tmp/$(basename $file)
[ -s /tmp/$(basename $file) ] && download_successful=1
countdown=$(expr $countdown - 1)
usleep 200000
done
[ $DEBUGLEVEL -ge 1 ] && \
echo "[wget_get] download of \"$file\" from \"$file_server\" ... successful"
return 0;
}
fileget () {
# normally tftp would be used, alternatively use wget for ftp or http
# if local device file is specified - mount and unmount after copying
local cfgfile
[ "x$fileprot" = "x" ] && fileprot=tftp
if [ "x$filepath" != "x" ] ; then
cfgfile=${filepath}
[ "x$fileserv" = "x" ] && fileserv=$(checkip ${serverip})
# wait for dns if "fileserv" is a name and not lbd device
[ "$fileprot" != "lbd" ] && \
echo ${fileserv} | grep -qi [a-z]
[ $DEBUGLEVEL -ge 1 ] && echo "fileget - fileprot:$fileprot, filepath:\
$filepath, fileserv:$fileserv" >>$LOGFILE
case "$fileprot" in
ftp|http)
wget_get $cfgfile $fileprot://$fileserv \
&& { unpack /tmp/$(basename $cfgfile) && break; } 2>>$LOGFILE
;;
lbd)
local ldev=$fileserv
echo "Waiting for configuration file ${cfgfile} ...."
[ $DEBUGLEVEL -ge 1 ] && echo "fileget - fileprot:$fileprot, filepath:\
$filepath, fileserv:$fileserv" >>$LOGFILE
waitfor /mnt/${cfgfile} 10000
if [ -f /mnt/${cfgfile} ]; then
unpack /mnt/$cfgfile
else
error "$init_errlfg"
fi
;;
*)
tftp_get $cfgfile $fileserv \
&& unpack /tmp/$(basename $cfgfile) 2>>$LOGFILE
;;
esac
else
# predefined value for OpenSLX environment; it is expected that this
# directory is just below the tftpboot (path to which the daemon is
# restricted to)
filepath="client-config"
[ "x$fileserv" = "x" ] && fileserv=$(checkip ${serverip})
[ $DEBUGLEVEL -ge 1 ] && echo "fileget - fileprot:$fileprot, filepath:\
$filepath, fileserv:$fileserv" >>$LOGFILE
# try to get configuration files successively; start with distro client
# and try last distro default ...
mac=$(echo $macaddr|sed "s/:/-/g")
for cfgfile in ${filepath}/${SYSTEM_NAME}/01-$mac.tgz \
${filepath}/${SYSTEM_NAME}/default.tgz ; do
case "$fileprot" in
ftp|http)
wget $fileprot://$fileserv/$cfgfile -O /tmp/$(basename $cfgfile) \
2>>$LOGFILE && { unpack /tmp/$(basename $cfgfile) && break; }
;;
tftp)
tftp_get $cfgfile $fileserv \
2>>$LOGFILE && { unpack /tmp/$(basename $cfgfile) && break; }
;;
esac
done
echo -e "\n## Configuration via fileget from ${fileprot}://${fileserv}/\
${cfgfile}\n# Hierarchy is distro client and as last distro/default" \
>>/tmp/confviafile
fi
cat /initramfs/machine-setup >>/tmp/confviafile 2>/dev/null || \
error "$nomachsetup"
echo "fileget via $fileprot from $fileserv/$cfgfile finished" >/tmp/file-done
[ $DEBUGLEVEL -ge 1 ] && echo "fileget from $cfgfile finished" >>$LOGFILE
}
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