oglive-builder/clientstructure/etc/initramfs-tools/scripts/ogfunctions

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#@file ogfunctions.lib
#@brief Librería o clase para la generación del 1erFS
#@class client
#@brief Funciones para la generación del primers sistema (initrd)
#@version 0.91
#@warning License: GNU GPLv3+
ogExportKernelParameters ()
{
GLOBAL="cat /proc/cmdline"
for i in `${GLOBAL}`
do
echo $i | grep "=" > /dev/null && export $i
done
return 0
}
ogExportVarEnvironment ()
{
#puntos de accesos al servidor ogprotocol=nfs
export NFSROOTBOOT="/var/lib/tftpboot"
export NFSCLIENTDIR="/opt/opengnsys/client"
export NFSLOGDIR="/opt/opengnsys/log/clients"
export NFSIMGDIR="/opt/opengnsys/images"
#puntos de accesos al servidor ogprotocol=smb
export SMBROOTBOOT="tftpboot"
export SMBCLIENTDIR="ogclient"
export SMBLOGDIR="oglog"
export SMBIMGDIR="ogimages"
#puntos de montaje local ram o cache
export LOCALCLIENTDIR="/opt/opengnsys"
export LOCALLOGDIR="/opt/opengnsys/log"
export LOCALIMGDIR="/opt/opengnsys/images"
export LOCALROOTBOOT="/opt/og2fs/tftpboot" #punto de montaje del contendor tftpboot
export LOCALROOTIMG="/opt/og2fs/2ndfs" #punto de montaje donde se accede al 2nd FS mediante loop
export LOCALROOTRAM="/opt/og2fs/1stfs" #punto de montaje para unionfs
export LOCALROOTUNION="/opt/og2fs/unionfs" #punto de union entreo LOCALROOTIMG y LOCALROOTRAM
##INFORMACION DE OTRAS VARIABLES OBTENDIAS EN OTRAS FUNCIONES.
#ogGetROOTSERVER() ip del servidor pxe, valor obtenido automaticamente desde dhcpd.
#IPV4DDR
#IPV4BROADCAST
#IPV4NETMASK
#IPV4GATEWAY
#DNS0 DNS1
#HOSTNAME
#ROOTSERVER #ip del servidor pxe que ha servido el kernel
#REPOSERVER=ogrepo -> ogConectROOTSERVER() ip del servidor de images para separar serviicios.
return 0
}
ogConfigureRamfs ()
{
mkdir -p $LOCALROOTBOOT
mkdir -p $LOCALROOTIMG
mkdir -p $LOCALROOTRAM
mkdir -p $LOCALROOTUNION
}
ogLoadNetModule ()
{
#cargando netmodule
if [ -n "$ognetmodule" ]
then
echo "Cargando modulo de red $netmodule"
insmod `find /lib/modules/ -name ${netmodule}*`
fi
}
ogPostConfigureFS()
{
# configuramos el /etc/hostname.
echo $HOSTNAME > /etc/hostname
#configuramos el /etc/hosts
echo "127.0.0.1 localhost" > /etc/hosts
echo "$IPV4ADDR $HOSTNAME" >> /etc/hosts
#configuramos el host.conf
echo "order hosts,bind" > /etc/host.conf
echo "multi on" >> /etc/host.conf
# configuramos el /etc/networks
#read -e NETIP NETDEFAULT <<<$(route -n | grep eth0 | awk -F" " '{print $1}')
NETIP=$(route -n | grep eth0 | awk -F" " '{print $1}') && NETIP=$(echo $NETIP | cut -f1 -d" ")
echo "default 0.0.0.0" > /etc/networks
echo "loopback 127.0.0.0" >> /etc/networks
echo "link-local 169.254.0.0" >> /etc/networks
echo "localnet $NETIP" >> /etc/networks
#route
}
ogGetROOTSERVER ()
{
# get nfs root from dhcp
if [ "x${NFSROOT}" = "xauto" ]; then
# check if server ip is part of dhcp root-path
if [ "${ROOTPATH#*:}" = "${ROOTPATH}" ]; then
NFSROOT=${ROOTSERVER}:${ROOTPATH}
else
NFSROOT=${ROOTPATH}
fi
# nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
elif [ -n "${NFSROOT}" ]; then
# nfs options are an optional arg
if [ "${NFSROOT#*,}" != "${NFSROOT}" ]; then
NFSOPTS="-o ${NFSROOT#*,}"
fi
NFSROOT=${NFSROOT%%,*}
if [ "${NFSROOT#*:}" = "$NFSROOT" ]; then
NFSROOT=${ROOTSERVER}:${NFSROOT}
fi
fi
export ROOTSERVER
return 0
}
ogConectROOTSERVER ()
{
local OPTIONS
#params a detectar
if [ $ogrepo ]
then
# Validar si la ip es correcta
ROOTREPO=$ogrepo
else
ROOTREPO=$ROOTSERVER
fi
case "$ogprotocol" in
cdrom)
echo "blkid /dev/s*"
blkid /dev/s*
echo " mount -t iso9660 LABEL=ogClient $LOCALROOTBOOT "
mount -t iso9660 LABEL=ogClient $LOCALROOTBOOT
;;
httfs)
echo "protocolo httfs aun no soportado"
;;
sshfs)
echo "protocolo sshfs aun no soportado"
;;
smb)
echo Preparando conexión con el Repositorio $ROOTSERVER $ogprotocol
OPTIONS=" -o user=opengnsys,pass=og"
mount.cifs //${ROOTSERVER}/${SMBCLIENTDIR} $LOCALCLIENTDIR $OPTIONS
#&& echo "mount.cifs //${ROOTSERVER}/${SMBCLIENTDIR} $LOCALCLIENTDIR $OPTIONS ";
mount.cifs //${ROOTSERVER}/${SMBLOGDIR} $LOCALLOGDIR $OPTIONS
#&& echo "mount.cifs //${ROOTSERVER}/${SMBLOGDIR} $LOCALLOGDIR $OPTIONS " ;
mount.cifs //${ROOTSERVER}/${SMBROOTBOOT} $LOCALROOTBOOT $OPTIONS
#&& echo "mount.cifs //${ROOTSERVER}/${SMBROOTBOOT} $LOCALROOTBOOT $OPTIONS ";
mount.cifs //${ROOTREPO}/${SMBIMGDIR} $LOCALIMGDIR ${OPTIONS},ro
#&& echo " mount.cifs //${ROOTREPO}/${SMBIMGDIR} $LOCALIMGDIR ${OPTIONS},ro ";
;;
nfs)
echo Preparando conexión con el Repositorio $ROOTSERVER $ogprotocol
nfsmount -o nolock,ro $ROOTSERVER:$NFSCLIENTDIR $LOCALCLIENTDIR && echo "nfsmount -o nolock,ro $ROOTSERVER:$NFSCLIENTDIR $LOCALCLIENTDIR ";
nfsmount -o nolock $ROOTSERVER:$NFSLOGDIR $LOCALLOGDIR && echo "nfsmount -o nolock $ROOTSERVER:$NFSLOGDIR $LOCALLOGDIR ";
nfsmount -o nolock $ROOTSERVER:$NFSROOTBOOT $LOCALROOTBOOT && echo "nfsmount -o nolock $ROOTSERVER:$NFSROOTBOOT $LOCALROOTBOOT ";
nfsmount -o nolock,ro $ROOTREPO:$NFSIMGDIR $LOCALIMGDIR && echo "nfsmount -o nolock,ro $ROOTREPO:$NFSIMGDIR $LOCALIMGDIR ";
#mount -t nfs -onolock,ro $ROOTSERVER:/opt/opengnsys/client /opt/opengnsys;
#mount -t nfs -o nolock $ROOTSERVER:/opt/opengnsys/log/clients /opt/opengnsys/log;
#mount -t nfs -o "\$MOUNTOPTS" \$SERVERNFS:/opt/opengnsys/images /opt/opengnsys/images;
#mount -t tmpfs none /opt/opengnsys/images -o size=5m
;;
esac
}
ogMerge2ndFile()
{
if [ -f $LOCALROOTBOOT/ogclient/ogclient.sqfs ]
then
cat /proc/mounts > /tmp/mtab.preunion
if [ "$og2nd" == "img" ]
then
#para acceder al img
losetup /dev/loop0 $LOCALROOTBOOT/ogclient/ogclient.img -o 32256
mount /dev/loop0 $LOCALROOTIMG
else
## para acceder al squashfs
mount $LOCALROOTBOOT/ogclient/ogclient.sqfs $LOCALROOTIMG -t squashfs -o loop
fi
for i in etc var lib bin sbin usr root boot; do
unionmount $i
done
cat /tmp/mtab.preunion > /etc/mtab
else
echo "ficher imagen del cliente no encontrado"
return 1
fi
}
unionmount()
{
tmpdir=/$1 #dir
FUSE_OPT="-o default_permissions -o allow_other -o use_ino -o nonempty -o suid"
UNION_OPT="-o cow -o noinitgroups"
UBIN="unionfs-fuse"
#UPATH="/unionfs"
#LOCALROOTIMG="/opt/og2fs/2ndfs"
#LOCALROOTRAM="/opt/og2fs/1stfs" #/unionfs/host #punto de montaje para unionfs
#LOCALROOTUNION=/opt/og2fs/unionfs/" #/unionfs/union #punto de union entreo LOCALROOTIMG y LOCALROOTRAM
#mkdir -p $LOCALROOTRAM #/unionfs/host
#mkdir -p $LOCALROOTUNION #/unionfs/union
mkdir -p $LOCALROOTRAM$tmpdir
#mount --bind /$tmpdir $LOCALROOTRAM$tmpdir
U1STDIR="${LOCALROOTRAM}${tmpdir}=RW"
U2NDDIR="${LOCALROOTIMG}${tmpdir}=RO"
UNIONDIR=$LOCALROOTUNION$tmpdir
mkdir -p $UNIONDIR
$UBIN $FUSE_OPT $UNION_OPT ${U1STDIR}:${U2NDDIR} $UNIONDIR
mount --bind $UNIONDIR $tmpdir
}
unionmountOLD()
{
FUSE_OPT="-o default_permissions -o allow_other -o use_ino -o nonempty -o suid"
UNION_OPT="-o cow -o noinitgroups"
UPATH="/unionfs"
UBIN="unionfs-fuse"
mkdir -p /unionfs/host
mkdir -p /unionfs/union
dir=$1
mkdir -p /unionfs/host/$dir
#mount --bind /$dir /unionfs/host/$dir
mkdir -p /unionfs/union/$dir
host="/unionfs/host/${dir}=RW"
common="/opt/og2fs/${dir}=RO"
$UBIN $FUSE_OPT $UNION_OPT ${host}:${common} /unionfs/union/$dir
mount --bind /unionfs/union/$dir /$dir
}
ogconfigure_lo()
{
# for the portmapper we need localhost
ifconfig lo 127.0.0.1
#/etc/init.d/portmap start
}
ogconfigure_networking()
{
IP=$IPOPTS
# http://paste.ubuntu.com/427631/ Paste from yofel at Tue, 4 May 2010 13:49:56 +0000
if [ -n "${BOOTIF}" ]; then
# pxelinux sets BOOTIF to a value based on the mac address of the
# network card used to PXE boot, so use this value for DEVICE rather
# than a hard-coded device name from initramfs.conf. this facilitates
# network booting when machines may have multiple network cards.
# pxelinux sets BOOTIF to 01-$mac_address
# strip off the leading "01-", which isn't part of the mac
# address
temp_mac=${BOOTIF#*-}
# convert to typical mac address format by replacing "-" with ":"
bootif_mac=""
IFS='-'
for x in $temp_mac ; do
if [ -z "$bootif_mac" ]; then
bootif_mac="$x"
else
bootif_mac="$x:$bootif_mac"
fi
done
unset IFS
# look for devices with matching mac address, and set DEVICE to
# appropriate value if match is found.
for device in /sys/class/net/* ; do
if [ -f "$device/address" ]; then
current_mac=$(cat "$device/address")
if [ "$bootif_mac" = "$current_mac" ]; then
DEVICE=${device##*/}
break
fi
fi
done
fi
# networking already configured thus bail out
[ -n "${DEVICE}" ] && [ -e /tmp/net-"${DEVICE}".conf ] && return 0
# support ip options see linux sources
# Documentation/filesystems/nfsroot.txt
# Documentation/frv/booting.txt
for ROUNDTTT in 2 3 4 6 9 16 25 36 64 100; do
# The NIC is to be configured if this file does not exist.
# Ip-Config tries to create this file and when it succeds
# creating the file, ipconfig is not run again.
if [ -e /tmp/net-"${DEVICE}".conf ]; then
break;
fi
case ${IP} in
none|off)
# Do nothing
;;
""|on|any)
# Bring up device
echo "Setting $DEVICE with kernel params $IP: ipconfig -t ${ROUNDTTT} ${DEVICE} "
ipconfig -t ${ROUNDTTT} ${DEVICE}
;;
dhcp|bootp|rarp|both)
echo "Setting $DEVICE with (dhcp) kernel params $IP: ipconfig -t ${ROUNDTTT} -c ${IP} -d ${DEVICE} "
ipconfig -t ${ROUNDTTT} -c ${IP} -d ${DEVICE}
;;
*)
echo "Setting $DEVICE with kernel params $IP: ipconfig -t ${ROUNDTTT} -d $IP "
ipconfig -t ${ROUNDTTT} -d $IP
# grab device entry from ip option
NEW_DEVICE=${IP#*:*:*:*:*:*}
if [ "${NEW_DEVICE}" != "${IP}" ]; then
NEW_DEVICE=${NEW_DEVICE%:*}
else
# wrong parse, possibly only a partial string
NEW_DEVICE=
fi
if [ -n "${NEW_DEVICE}" ]; then
DEVICE="${NEW_DEVICE}"
fi
;;
esac
done
# source ipconfig output
if [ -n "${DEVICE}" ]; then
# source specific bootdevice
. /tmp/net-${DEVICE}.conf
else
# source any interface as not exaclty specified
. /tmp/net-*.conf
fi
}
#####################################################################
# Ask yesno question.
#
# Usage: yesno OPTIONS QUESTION
#
# Options:
# --timeout N Timeout if no input seen in N seconds.
# --default ANS Use ANS as the default answer on timeout or
# if an empty answer is provided.
#
# Exit status is the answer. 0=yes 1=no
ogYesNo()
{
local ans
local ok=0
local timeout=0
local default
local t
while [[ "$1" ]]
do
case "$1" in
--default)
shift
default=$1
if [[ ! "$default" ]]; then error "Missing default value"; fi
t=$(echo $default | tr '[:upper:]' '[:lower:]')
if [[ "$t" != 'y' && "$t" != 'yes' && "$t" != 'n' && "$t" != 'no' ]]; then
error "Illegal default answer: $default"
fi
default=$t
shift
;;
--timeout)
shift
timeout=$1
if [[ ! "$timeout" ]]; then error "Missing timeout value"; fi
#if [[ ! "$timeout" =~ ^[0-9][0-9]*$ ]]; then error "Illegal timeout value: $timeout"; fi
shift
;;
-*)
error "Unrecognized option: $1"
;;
*)
break
;;
esac
done
if [[ $timeout -ne 0 && ! "$default" ]]; then
error "Non-zero timeout requires a default answer"
fi
if [[ ! "$*" ]]; then error "Missing question"; fi
while [[ $ok -eq 0 ]]
do
if [[ $timeout -ne 0 ]]; then
if ! read -t $timeout -p "$*" ans; then
ans=$default
else
# Turn off timeout if answer entered.
timeout=0
if [[ ! "$ans" ]]; then ans=$default; fi
fi
else
read -p "$*" ans
if [[ ! "$ans" ]]; then
ans=$default
else
ans=$(echo $ans | tr '[:upper:]' '[:lower:]')
fi
fi
if [[ "$ans" == 'y' || "$ans" == 'yes' || "$ans" == 'n' || "$ans" == 'no' ]]; then
ok=1
fi
if [[ $ok -eq 0 ]]; then warning "Valid answers are: yes y no n"; fi
done
[[ "$ans" = "y" || "$ans" == "yes" ]]
}