From 4551c8bfa53910a937f2dcc1349115bc981145c2 Mon Sep 17 00:00:00 2001 From: Enrico Scholz Date: Thu, 9 Oct 2003 01:47:58 +0000 Subject: [PATCH] initial checkin git-svn-id: http://svn.linux-vserver.org/svn/util-vserver/trunk@71 94cd875c-1c1d-0410-91d2-eb244daf1a30 --- util-vserver/scripts/vserver.start | 325 +++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 util-vserver/scripts/vserver.start diff --git a/util-vserver/scripts/vserver.start b/util-vserver/scripts/vserver.start new file mode 100644 index 0000000..ecd667d --- /dev/null +++ b/util-vserver/scripts/vserver.start @@ -0,0 +1,325 @@ +#! /bin/bash + +# Copyright (C) 2003 Enrico Scholz +# +# 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. + +## Expected env: +# $VSERVER_DIR ... path to vserver-cfg dir +# $VSERVER_NAME ... name of vserver + +declare -a NICE_CMD=() +declare -a CHBIND_OPTS=() +declare -a CAP_OPTS=() +declare -a CHCONTEXT_FLAG_OPTS=() +declare -a CHCONTEXT_OPTS=() +declare -a CAPCHROOT_OPTS=() +declare -a INTERFACES=() +declare -a START_CMD=() + +SILENT_OPT= + +function _generateInterfaceList +{ + local vdir="$1" + local iface + local ip + + for iface in "$VSERVER_DIR/interfaces/"*; do + test -d "$iface" || continue + test ! -e "$iface"/disabled || continue + + read ip <"$iface"/ip || continue + INTERFACES=( "${INTERFACES[@]}" "$ip" ) + done 2>/dev/null +} + +function _generateChbindOptions +{ + local vdir="$1" + local i + local bcast= + + local f=$vdir/interfaces/bcast + test ! -e "$f" || read bcast <"$f" + + CHBIND_OPTS=( $SILENT_OPT ${bcast:+--bcast "$bcast"} ) + + for i in "${INTERFACES[@]}"; do + CHBIND_OPTS=( "${CHBIND_OPTS[@]}" --ip "$i" ) + done +} + +function _generateNiceCommand +{ + local vdir=$1 + local nice + + test -e "$vdir/nice" || return 0; + read nice <"$vdir"/nice + + NICE_CMD=( $_NICE -$nice ) +} + +function _generateCapabilityOptions +{ + local vdir=$1 + local cap + + test -e "$vdir"/capabilities || return 0 + + CAP_OPTS=() + CAPCHROOT_OPTS=() + + while read cap; do + case x"$cap" in + x|x#) ;; + !CAP_SYSCHROOT) + CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" ) + CAPCHROOT_OPTS=( "${CAPCHROOT_OPTS[@]}" --nochroot ) + ;; + *) + CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" );; + esac + done <"$vdir"/capabilities +} + +function _generateFlagOptions +{ + local vdir=$1 + local init_default=3 + + CHCONTEXT_FLAG_OPTS=() + + ## TODO: get_initdefault + START_CMD=( /etc/rc.d/rc $init_default ) + test ! -x "$vdir/etc/init.d/rc" || { + START_CMD=( /etc/init.d/rc $init_default ) + } + + test -e "$vdir"/flags || return 0 + + while read flag; do + case x"$flag" in + x|x#) ;; + dummy) ;; + minit|fakeinit) + CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" \ + --disconnect --flag --fakeinit ) + case "$flag" in + minit) START_CMD=( /sbin/minit-start );; + *) START_CMD=( /sbin/init );; + esac + ;; + *) + CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" + --flag "$flag" ) + ;; + esac + done <"$vdir"/flags +} + +function _generateChcontextOptions +{ + local vdir=$1 + local ctx hostname domainname + local cap_opts + local flag + + { + read ctx <"$vdir"/context + read hostname <"$vdir"/hostname + read domainname <"$vdir"/domainname + } 2>/dev/null + + _generateCapabilityOptions "$vdir" + _generateFlagOptions "$vdir" + + CHCONTEXT_OPTS=( $SILENT_OPT \ + "${CHCONTEXT_FLAG_OPTS[@]}" \ + "${CAP_OPTS[@]}" \ + --secure + ${ctx:+--ctx "$ctx"} \ + ${hostname:+--hostname "$hostname"} \ + ${domainname:+--domainname "$domainname"} ) +} + + +function enableSingleInterface +{ + local iface=$1 + + local dev + local ip + local mask + local bcast + local name + local scope + + read dev <"$iface"/dev || dev=$dev_default + read ip <"$iface"/ip || { echo $"Can not read ip for '$iface'" >&3; return 1; } + read prefix <"$iface"/prefix || prefix=$prefix_default + read mask <"$iface"/mask || mask=$mask_default + read bcast <"$iface"/bcast || bcast=$bcast_default + read name <"$iface"/name + read scope <"$iface"/scope + + test ! -e "$iface"/only_ip || unset dev + + if test "$dev"; then + test "$prefix" || { + $_MASK2PREFIX "$mask" || prefix=$? + test "$prefix" != 255 + } + + case "$dev" in + *.*) + test -d /proc/net/vlan || { + echo -e $"VLAN device-name used, but vlan subsystem not enabled.\nTry to execute 'modprobe 8021q' before starting the vservers" + return 1 + } + test -f /proc/net/vlan || { + $_VCONFIG add ${dev/./ } + $_IP addr add 127.0.0.1/8 broadcast 127.255.255.255 dev "$dev" + $_IP link set "$dev" up + } + ;; + esac + + $_IP addr add "$ip${prefix:+/$prefix}" ${bcast:-broadcast +}${bcast:+broadcast "$bcast"} \ + ${name:+label "$dev:$name"} dev "$dev" + $_IP route add "$ip""${prefix:+/$prefix}" dev "$dev" + $_IP link set "$dev" up + fi 2>&3 +} + +function setInterfaceDefaults +{ + read dev_default <"$1"/dev + read mask_default <"$1"/mask + read prefix_default <"$1"/prefix + read bcast_default <"$1"/bcast + + test -z "mask_default" -o "$prefix_default" || { + $_MASK2PREFIX "$mask_default" || prefix_default=$? + test "$prefix_default" != 255 + } +} + +function enableInterfaces +{ + local VSERVER_DIR=$1 + local VSERVER_NAME=$2 + + local iface + + local dev_default + local mask_default + local bcast_default + local prefix_default + + declare -a all_ips + + setInterfaceDefaults 3>&2 2>/dev/null + + for iface in "$VSERVER_DIR/interfaces/"*; do + test -d "$iface" || continue + test ! -e "$iface"/disabled || continue + + enableSingleInterface "$iface" 3>&2 2>/dev/null + done +} + + + + + +function generateOptions +{ + _generateInterfaceList "$1" + _generateChbindOptions "$1" + _generateNiceCommand "$1" + _generateChcontextOptions "$1" +} + +function mountVserver +{ + local cfgdir=$1 + local vdir=$1/vdir + local src dst type opts aux + local mountopts + + declare -a mountopts + + test -e "$cfgdir"/fstab || return 0 + + cat "$cfgdir"/fstab | while read src dst type opts aux; do + test "$src" -a "$dst" -a "$type" -a "$opts" || continue + + if test "$type" = "bind"; then + mountopts=( --bind ) + else + mountopts=( -type $type -o "$opts" ) + fi + + $_CHBIND "${CHBIND_OPTS[@]}" \ + $_MOUNT "${mountopts}" "$src" "$vdir$dst" + done +} + +function execScriptlets +{ + local vdir=$1 + local name=$2 + local flavor=$3 + local i + + for i in "$vdir/scripts/$flavor" "$vdir/scripts/$flavor.d"/*; do + test -f "$i" -a -x "$i" || continue + "$i" "$flavor" "$name" + done +} + +############################################ + +: ${VSERVER_NAME:=$(basename "$VSERVER_DIR")} + +if test -e "$VSERVER_DIR"/noisy; then + SILENT_OPT= +else + SILENT_OPT='--silent' +fi + +if isVserverRunning "$VSERVER_DIR"; then + echo $"vserver '$VSERVER_NAME' already running; aborting..." + exit 1 +fi + +execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" pre-start +generateOptions "$VSERVER_DIR" +enableInterfaces "$VSERVER_DIR" "$VSERVER_NAME" + +# TODO: utmp + +mountVserver "$VSERVER_DIR" + +cd "$VSERVER_DIR"/vdir/ + +"${NICE_CMD[@]}" \ + "$_CHBIND" "${CHBIND_OPTS[@]}" \ + "$_CHCONTEXT" "${CHCONTEXT_OPTS[@]}" \ + "$_SAVE_CTXINFO" "$VSERVER_DIR" \ + "$_CAPCHROOT" "${CAPCHROOT_OPTS[@]}" . "${START_CMD[@]}" + +execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" post-start -- 1.8.1.5