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# $Id: vserver-setup.functions,v 1.16 2005/01/31 17:43:31 ensc Exp $ --*- sh -*--
# Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
SETUP_HOSTNAME=
SETUP_NETDEV=
SETUP_NETMASK=
SETUP_NETPREFIX=
SETUP_NETBCAST=
SETUP_LOCKFILE=
SETUP_CONFDIR=
SETUP_CONTEXT=
SETUP_INITSTYLE=
declare -a SETUP_INTERFACES=()
declare -a SETUP_FLAGS=()
declare -r SETUP_OPTIONS="confdir:,lockfile:,hostname:,netdev:,netmask:,netprefix:,netbcast:,interface:,flags:,context:,initstyle:"
declare -r SETUP_HELPMSG=$"
--context ... the static context of the vserver [default: none; a dynamic
context will be assumed]
--confdir ... [default: $CONFDIR/<name>]
--lockfile <filename>
... [default: $RUNDIR/<name>]
--hostname <hostname>
--netdev <device>
--netbcast <broadcast>
--netmask <netmask>|--netprefix <prefixlen>
... sets the default netmask (a.b.c.d quadruple) or prefixlen
(length of the interface)
--interface [<name-suffix>=][<device>:]<ip>[/<mask|prefixlen>]
... declares an network-interface; this option can be specified
multiple times
--flags <flags>+
... sets comma-separated list of flags; possible flags are
lock: Prevent the vserver from setting new security context
sched: Merge scheduler priority of all processes in the
vserver so that it acts a like a single
one (kernel 2.4 only).
nproc: Limit the number of processes in the vserver
according to ulimit (instead of a per user limit,
this becomes a per vserver limit)
private: No other process can join this security context.
Even root
--initstyle <style>
... configures the initstyle (e.g. minit,sysv,plain)
"
function setup_setOption2
{
case "$1" in
(--context) SETUP_CONTEXT=$2;;
(--confdir) SETUP_CONFDIR=$2;;
(--lockfile) SETUP_LOCKFILE=$2;;
(--hostname) SETUP_HOSTNAME=$2;;
(--netdev) SETUP_NETDEV=$2;;
(--netmask) SETUP_NETMASK=$2;;
(--netprefix) SETUP_NETPREFIX=$2;;
(--netbcast) SETUP_NETBCAST=$2;;
(--interface) SETUP_INTERFACES=( "${SETUP_INTERFACES[@]}" "$2" );;
(--initstyle) SETUP_INITSTYLE=$2;;
(--flags) old_IFS=$IFS
IFS=,
set -- $2
SETUP_FLAGS=( "${SETUP_FLAGS[@]}" "$@" )
IFS=$old_IFS
;;
(*) return 1;;
esac
return 0
}
function _setup_writeSingleOption
{
test -z "$1" || echo "$1" >"$2"
}
function _setup_writeInterface
{
local vdir=$1
local idx=$2
local tmp=$3
local name=${tmp%%=*}
test "$name" != "$tmp" || name=
tmp=${tmp##${name}=}
local dev=${tmp%%:*}
test "$dev" != "$tmp" || dev=
tmp=${tmp##${dev}:}
local mask=${tmp##*/}
test "$mask" != "$tmp" || mask=
local ip=${tmp%%/${mask}}
local prefix=
test "${mask%%.*}" != "$mask" || {
prefix=$mask
mask=
}
d=$vdir/interfaces/$idx
mkdir "$d"
_setup_writeSingleOption "$name" $d/name
_setup_writeSingleOption "$dev" $d/dev
_setup_writeSingleOption "$ip" $d/ip
_setup_writeSingleOption "$mask" $d/mask
_setup_writeSingleOption "$prefix" $d/prefix
test -n "$dev" -o -n "$SETUP_NETDEV" || \
echo $"No device specified for interface '$idx'; do not forget to set the 'nodev' option" >&2
}
function setup_setDefaults
{
: ${SETUP_CONFDIR:=$CONFDIR/$1}
: ${SETUP_LOCKFILE:=$RUNDIR/$1}
findFile SETUP_FSTAB "$CONFDIR"/.defaults/fstab "$PKGLIBDEFAULTDIR"/fstab
}
function setup_writeOption
{
local name=$1
local cfgdir=$SETUP_CONFDIR
local i
mkdir -p "$cfgdir"/interfaces "$cfgdir"/apps/init "$cfgdir"/uts
_setup_writeSingleOption "$name" "$cfgdir"/name
_setup_writeSingleOption "$SETUP_CONTEXT" "$cfgdir"/context
_setup_writeSingleOption "$SETUP_HOSTNAME" "$cfgdir"/uts/nodename
_setup_writeSingleOption "$SETUP_NETDEV" "$cfgdir"/interfaces/dev
_setup_writeSingleOption "$SETUP_NETMASK" "$cfgdir"/interfaces/mask
_setup_writeSingleOption "$SETUP_NETPREFIX" "$cfgdir"/interfaces/prefix
_setup_writeSingleOption "$SETUP_NETBCAST" "$cfgdir"/interfaces/bcast
_setup_writeSingleOption "$SETUP_INITSTYLE" "$cfgdir"/apps/init/style
local idx=0
for i in "${SETUP_INTERFACES[@]}"; do
_setup_writeInterface "$cfgdir" $idx "$i"
let ++idx
done
test -z "$SETUP_FLAGS" || for i in "${SETUP_FLAGS[@]}"; do
echo "$i"
done >"$cfgdir"/flags
ln -s "$SETUP_LOCKFILE" "$cfgdir"/run
}
function setup_writeInitialFstab
{
cat "$SETUP_FSTAB" >"$SETUP_CONFDIR"/fstab
}
function setup_test
{
SETUP_INTERFACES=()
setup_setOption2 --interface foo0=eth0:1.2.3.4/1
setup_setOption2 --interface foo1=eth0:1.2.3.4/255.255.248.0
setup_setOption2 --interface foo2=eth0:1.2.3.4
setup_setOption2 --interface foo3=1.2.3.4
setup_setOption2 --interface foo4=1.2.3.4/1
setup_setOption2 --interface eth0:1.2.3.4
setup_setOption2 --interface eth0:1.2.3.4/1
setup_setOption2 --interface 1.2.3.4
setup_setOption2 --interface 1.2.3.4/1
setup_writeOption xx
}
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