X-Git-Url: http://git.onelab.eu/?p=util-vserver.git;a=blobdiff_plain;f=scripts%2Fvserver.functions;fp=scripts%2Fvserver.functions;h=0139d581f351b69883bdcb577f32b616a959efa2;hp=0000000000000000000000000000000000000000;hb=8cf13bb177d92c93eb73dc8939777150536c2d00;hpb=6bf3f95de36c804c97716b2d0bdf10680c559044 diff --git a/scripts/vserver.functions b/scripts/vserver.functions new file mode 100644 index 0000000..0139d58 --- /dev/null +++ b/scripts/vserver.functions @@ -0,0 +1,935 @@ +# $Id: vserver.functions,v 1.57 2005/07/03 17:47:06 ensc Exp $ --*- sh -*-- + +# 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_INIT_OPTS=() +declare -a CHCONTEXT_FLAG_OPTS=() +declare -a CHCONTEXT_OPTS=() +declare -a CAPCHROOT_OPTS=() +declare -a INTERFACES=() + +declare -a INITCMD_RESCUE=( /bin/sleep 900 ) +declare -a INITCMD_START=() +declare -a INITCMD_START_SYNC=() +declare -a INITCMD_STOP=() +declare -a INITCMD_STOP_SYNC=() +declare -a INITCMD_PREPARE=() +declare -a INITKILL_SEQ=() +declare -a ENTER_SHELL=() + +declare -a OPTS_VCONTEXT_CREATE=() +declare -a OPTS_VCONTEXT_MIGRATE=() +declare -a OPTS_VCONTEXT_ENTER=() +declare -a OPTS_VATTRIBUTE=( --flag fakeinit ) +declare -a OPTS_VSCHED=() + +declare -a STOPCMD_PREPARE=() + +declare -a VSERVER_EXTRA_CMDS=() + +INIT_RESCUE= +VSHELPER_SYNC_TIMEOUT=30 +USE_VNAMESPACE= +INTERFACE_CMDS_IDX=0 +RUNLEVEL_START= +RUNLEVEL_STOP= +_HAVE_INTERFACE_OPTIONS= +_HAVE_CHBIND_OPTIONS= +_NEED_VSHELPER_SYNC= +_IS_FAKEINIT= + +INITSTYLE=sysv + +S_CONTEXT= + +SILENT_OPT= + +: ${VSERVER_NAME:=$(basename "$VSERVER_DIR")} + +if test -e "$VSERVER_DIR"/noisy -o -n "$OPTION_VERBOSE"; then + SILENT_OPT= +else + SILENT_OPT='--silent' +fi + +function _generateChbindOptions +{ + local vdir="$1" + local i + local bcast= + + test -n "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$vdir" + + local f=$vdir/interfaces/bcast + getFileValue bcast "$f" + + CHBIND_OPTS=( $SILENT_OPT ${bcast:+--bcast "$bcast"} ) + + for i in "${INTERFACES[@]}"; do + CHBIND_OPTS=( "${CHBIND_OPTS[@]}" --ip "$i" ) + done + + _HAVE_CHBIND_OPTIONS=1 +} + +function _generateNiceCommand +{ + local vdir=$1 + local nice + + test -r "$vdir/nice" || return 0; + read nice <"$vdir"/nice + + NICE_CMD=( $_NICE -$nice ) +} + + +function _generatePersonalityOptions +{ + local vdir="$1" + local f="$vdir"/personality + local type flags + + test -s "$f" || return 0 + + { + local delim tmp + + read type + while read tmp; do + case x$tmp in + (x\#*|x) ;; + (*) flags=$flags$delim$tmp + delim=, + ;; + esac + done + } <"$f" + + OPTS_VCONTEXT_ENTER=( "${OPTS_VCONTEXT_ENTER[@]}" + --personality-type "$type" + ${flags:+--personality-flags "$flags"} ) +} + +function _generateCCapabilityOptions +{ + local vdir=$1 + local cap + local f="$vdir"/ccapabilities + + test -e "$f" || return 0 + while read cap; do + case x"$cap" in + (x|x\#) ;; + (*) OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --ccap "$cap" );; + esac + done <"$f" +} + +function _generateBCapabilityOptions +{ + local vdir=$1 + local cap + local f="$vdir"/bcapabilities + + test -e "$f" || return 0 + while read cap; do + case x"$cap" in + (x|x\#) ;; + (*) OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --bcap "$cap" );; + esac + done <"$f" +} + +function _generateCapabilityOptions +{ + local vdir=$1 + local cap + + _generateBCapabilityOptions "$vdir" + _generateCCapabilityOptions "$vdir" + + test -e "$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 getEnterShell +{ + local vdir=$1 + local shell_file + + ENTER_SHELL=() + + getFileValue ENTER_SHELL "$vdir"/shell "$__CONFDIR"/.defaults/shell + + test -n "$ENTER_SHELL" || { + local i + for i in "/bin/bash -login" "/bin/sh -l" /bin/csh; do + set -- $i + test -x "$vdir/vdir/$1" || continue + ENTER_SHELL=( "$@" ) + break + done + } +} + +## Usage: sendKillSequence [ ]* +function sendKillSequence +{ + local ctx=$1 + local wait= + shift + + while isCtxRunning "$ctx"; do + test -z "$wait" || sleep "$wait" + + killContext "$ctx" "$1" + test -n "$2" || break + wait="$2" + shift 2 + done +} + +function _generateInitOptions +{ + local vdir=$1 + local cfgdir=$vdir/apps/init + local i f + + INITCMD_START=() + INITCMD_STOP=() + INITCMD_START_SYNC=() + INITCMD_STOP_SYNC=() + INITCMD_PREPARE=() + STOPCMD_PREPARE=() + + INITKILL_SEQ=( 15 5 9 ) + CHCONTEXT_INIT_OPTS=() + + + getFileValue INITSTYLE "$cfgdir"/style + getFileValue RUNLEVEL_START "$cfgdir"/runlevel + getFileValue RUNLEVEL_START "$cfgdir"/runlevel.start + getFileValue RUNLEVEL_STOP "$cfgdir"/runlevel.stop + getFileArray INITKILL_SEQ "$cfgdir"/killseq || : + + case x"$INITSTYLE" in + (xrescue) + INITCMD_START=( "${INITCMD_RESCUE[@]}" ) + INITCMD_STOP=( /sbin/killall5 ) + _IS_FAKEINIT=1 + _NEED_VSHELPER_SYNC= + ;; + + (xsysv) + test -n "$RUNLEVEL_START" || RUNLEVEL_START=3 + test -n "$RUNLEVEL_STOP" || RUNLEVEL_STOP=6 + + for i in /etc/init.d/rc /etc/rc.d/rc; do + test -x "$vdir/vdir/$i" || continue + INITCMD_START=( "$i" "$RUNLEVEL_START" ) + INITCMD_STOP=( "$i" "$RUNLEVEL_STOP" ) + done + INITCMD_PREPARE=( $_FAKE_RUNLEVEL "$RUNLEVEL_START" /var/run/utmp ) + ;; + + (xplain) + INITCMD_START=( /sbin/init ) + INITCMD_STOP=( /sbin/init ) + _IS_FAKEINIT=1 + _NEED_VSHELPER_SYNC=1 + test -z "$RUNLEVEL_START" || INITCMD_START=( "${INITCMD_START[@]}" "$RUNLEVEL_START" ) + test -z "$RUNLEVEL_STOP" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$RUNLEVEL_STOP" ) + ;; + + (xminit) + INITCMD_START=( /sbin/minit-start ) + INITCMD_STOP=( /sbin/minit-stop ) + _IS_FAKEINIT=1 + INITCMD_START_SYNC=( "$_INITSYNC_MINIT_START" "$vdir" ) + _NEED_VSHELPER_SYNC=1 + test -z "$RUNLEVEL_START" || INITCMD_START=( "${INITCMD_START[@]}" "$RUNLEVEL_START" ) + test -z "$RUNLEVEL_STOP" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$RUNLEVEL_STOP" ) + ! isNumber "${RUNLEVEL_START:-3}" || INITCMD_PREPARE=( $_FAKE_RUNLEVEL "${RUNLEVEL_START:-3}" /var/run/utmp ) + ;; + + (xgentoo) + INITCMD_START=( /sbin/rc default ) + INITCMD_STOP=( /sbin/rc shutdown ) + ;; + + (x) ;; + (*) echo "Unknown init-style '$INITSTYLE'; aborting" >&2; + exit 1;; + esac + + if test x"$INITSTYLE" != xrescue; then + getFileArray INITCMD_START "$cfgdir"/cmd.start || : + getFileArray INITCMD_STOP "$cfgdir"/cmd.stop || : + getFileArray INITCMD_START_SYNC "$cfgdir"/cmd.start-sync || : + getFileArray INITCMD_STOP_SYNC "$cfgdir"/cmd.stop-sync || : + getFileArray INITCMD_PREPARE "$cfgdir"/cmd.prepare || : + fi + + test -n "$OPTION_FORCE_SYNC" -o -e "$cfgdir"/sync || { + INITCMD_START_SYNC=() + INITCMD_STOP_SYNC=() + _NEED_VSHELPER_SYNC= + } + + if vshelper.isEnabled; then + vshelper.getSyncTimeout "$vdir" VSHELPER_SYNC_TIMEOUT || : + else + _NEED_VSHELPER_SYNC= + fi +} + +function _generateFlagOptions +{ + local vdir=$1 + + CHCONTEXT_FLAG_OPTS=() + + test ! -e "$vdir"/flags || \ + while read flag; do + case x"$flag" in + (x|x\#) ;; + (xnamespace) ;; + (xfakeinit) + _IS_FAKEINIT=1 + ;; + (*) + OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --flag "$flag" ) + CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" + --flag "$flag" ) + ;; + esac + done <"$vdir"/flags + + isAvoidNamespace "$vdir" || { + USE_VNAMESPACE=1 + CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" --flag namespace ) + } +} + +function _generateChcontextOptions +{ + local vdir=$1 + local ctx hostname domainname + local cap_opts + local flag + + { + read ctx <"$vdir"/context || : + ## LEGACY ALERT + read hostname <"$vdir"/uts/nodename || read hostname <"$vdir"/hostname || : + read domainname <"$vdir"/uts/domainname || read domainname <"$vdir"/domainname || : + } 2>/dev/null + + test -z "$S_CONTEXT" || ctx=$S_CONTEXT + + _generateCapabilityOptions "$vdir" + _generateFlagOptions "$vdir" + + CHCONTEXT_OPTS=( $SILENT_OPT \ + "${CHCONTEXT_FLAG_OPTS[@]}" \ + "${CAP_OPTS[@]}" \ + --secure + ${ctx:+--ctx "$ctx"} \ + ${hostname:+--hostname "$hostname"} \ + ${domainname:+--domainname "$domainname"} ) + + OPTS_VCONTEXT_CREATE=( $SILENT_OPT \ + ${ctx:+--xid "$ctx"} ) + ## put '--secure' at front so that it can be overridden + OPTS_VATTRIBUTE=( --secure "${OPTS_VATTRIBUTE[@]}" ) +} + +function _generateScheduleOptions +{ + local vdir=$1 + local f="$vdir"/schedule + test -e "$f" || return 0 + + local fill_rate interval tokens tokens_min tokens_max prio_bias + { + { + read fill_rate && \ + read interval && \ + read tokens && \ + read tokens_min && \ + read tokens_max && \ + read prio_bias || prio_bias= + } <"$f" + } 2>/dev/null + + test -n "$prio_bias" || { + echo $"Bad content in '$f'; aborting..." >&2 + false + } + + OPTS_VSCHED=( --fill-rate "$fill_rate" --interval "$interval" \ + --tokens "$tokens" --tokens_min "$tokens_min" \ + --tokens_max "$tokens_max" --priority-bias "$prio_bias" ) +} + +function _getInterfaceValue +{ + local _giv_val=$1 + local _giv_dflt=$2 + shift 2 + + local _giv_i + local _giv_tmp + + for _giv_i; do + read _giv_tmp <"$_giv_i/$_giv_val" && break || : + done 2>/dev/null + + : ${_giv_tmp:=$_giv_dflt} + eval $_giv_val=\$_giv_tmp +} + +## Usage: _transformMask2Prefix +function _transformMask2Prefix +{ + local _tm2p_tmp=$2 + + test -n "$_tm2p_tmp" || { + $_MASK2PREFIX "$3" || _tm2p_tmp=$? + } + + eval $1=\$_tm2p_tmp + return 0 +} + +function _addInterfaceCmd +{ + eval INTERFACE_CMDS_${INTERFACE_CMDS_IDX}='( "$@" )' + let ++INTERFACE_CMDS_IDX +} + +## Usage: _generateMac +function _generateMac +{ + isNumber "$2" || { + echo $"Interface basename '$iface' must be either a number, or the mac must be configured explicitly" >&2 + return 1 + } + + eval $1=$(printf "f0:ff:%02x:%02x:%02x:%02x" $[ (~($2>>8)) & 0xff ] $[ ($2 & 0xff) ] $[ ($3>>8) & 0xff ] $[ $3 & 0xff ]) +} + +## Usage: _processSingleInterface +function _processSingleInterface +{ + local iface=$1 + + local ip + local dev + local prefix + local mask + local bcast + local name + local scope + local mac + local extip + local up="up" + + _getInterfaceValue ip '' "$iface" + _getInterfaceValue extip '' "$iface" "$iface/.." + _getInterfaceValue dev '' "$iface" "$iface/.." + _getInterfaceValue prefix '' "$iface" "$iface/.." + _getInterfaceValue mask '' "$iface" "$iface/.." + _getInterfaceValue bcast '' "$iface" "$iface/.." + _getInterfaceValue name '' "$iface" + _getInterfaceValue scope '' "$iface" "$iface/.." + _getInterfaceValue mac '' "$iface" + + test -n "$ip" || { echo $"Can not read ip for '$iface'" >&2; return 1; } + test -n "$dev" -o -e "$iface"/nodev || { + echo $"No device specified for '$iface'" >&2 + return 1; + } + + test ! -e "$iface"/down || up= + + while true; do + _transformMask2Prefix prefix "$prefix" "$mask" + INTERFACES=( "${INTERFACES[@]}" "$ip${prefix:+/$prefix}" ) + + test ! -e "$iface"/nodev || break + ## LEGACY ALERT + test ! -e "$iface"/only_ip || break + + case "$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" >&2 + return 1 + } + test -f /proc/net/vlan || { + _addInterfaceCmd VCONFIG ${dev/./ } + _addInterfaceCmd IP_ADDR 127.0.0.1/8 broadcast 127.255.255.255 dev "$dev" + _addInterfaceCmd IP_LINK "$dev" $up + } + ;; + esac + + if ! test -e "$iface"/indirect; then + _addInterfaceCmd IP_ADDR "$ip${prefix:+/$prefix}" broadcast ${bcast:-+} ${name:+label "$dev:$name"} dev "$dev" + #_addInterfaceCmd IP_ROUTE "$ip${prefix:+/$prefix}" dev "$dev" + _addInterfaceCmd IP_LINK "$dev" $up + elif ! test -n "$ctx"; then + echo $"Using 'dummy' (indirect) for interface '$dev' requires a fixed context number; dynamic ctx are not supported" >&2 + return 1 + else + test -z "$mac" || _generateMac mac "$(basename $iface)" "$ctx" || return 1 + _addInterfaceCmd MODPROBE dummy "$dev" + _addInterfaceCmd IP_LINK dev dummy0 address "$mac" + _addInterfaceCmd NAMEIF "$dev" "$mac" + _addInterfaceCmd IP_ADDR "$ip${prefix:+/$prefix}" dev "$dev" + test -z "$extip" || _addInterfaceCmd IPTABLES "$ip${prefix:+/$prefix}" ${name:+label "$dev:$name"} "$ctx" "$extip" + fi + + break + done +} + +## Usage: _generateInterfaceOptions +function _generateInterfaceOptions +{ + local iface + local ctx + + test ! -e "$1"/context || read ctx <"$1"/context + + for iface in "$1/interfaces/"*; do + test -d "$iface" || continue + test ! -e "$iface"/disabled || continue + + _processSingleInterface "$iface" + done + _HAVE_INTERFACE_OPTIONS=1 +} + +function enableInterfaces +{ + local i=0 + declare -a var + + lock "$__LOCKDIR"/vserver.interfaces + + while test $i -lt $INTERFACE_CMDS_IDX; do + eval var='( "${INTERFACE_CMDS_'$i'[@]}" )' + local type=${var[0]} + unset var[0] + + set -- "${var[@]}" + case "$type" in + IPTABLES) ;; ## TODO + MODPROBE) + local mod=$1 + local name=$2 + shift 2 + $_MODPROBE ${name:+-o "$name"} "$mod" "$@" + ;; + NAMEIF) $_NAMEIF "$@";; + VCONFIG) $_VCONFIG add "$@";; + IP_ADDR) $_IP addr add "$@";; + IP_ADDR_FLUSH) $_IP addr flush "$@";; + IP_LINK) $_IP link set "$@";; + IP_ROUTE) $_IP route add "$@";; + *) echo "Unknown interface-command type '$type'" >&2; false;; + esac + + let ++i + done + + unlock 1 +} + +function disableInterfaces +{ + test -n "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$1" + + local i=$INTERFACE_CMDS_IDX + declare -a var + + lock "$__LOCKDIR"/vserver.interfaces + + while test $i -gt 0; do + let --i || : + + eval var='( "${INTERFACE_CMDS_'$i'[@]}" )' + local type=${var[0]} + unset var[0] + + set -- "${var[@]}" + case "$type" in + IPTABLES) ;; ## TODO + MODPROBE) $_RMMOD "${2:-$1}";; + NAMEIF) ;; + VCONFIG) $_VCONFIG rem "$@";; + IP_ADDR) $_IP addr del "$@";; + IP_ADDR_FLUSH) ;; + IP_LINK) ;; ## Ignore the link-down command for now + IP_ROUTE) $_IP route del "$@";; + *) echo "Unknown interface-command type '$type'" >&2; false;; + esac + done + + unlock 1 +} + +## Usage: prepareInit +function prepareInit +{ + pushd "$1/vdir" >/dev/null + case "$INITSTYLE" in + sysv) + { find var/run ! -type d -print0; \ + find var/lock ! -type d -print0; } | xargs -0r $_CHROOT_SH rm + ;; + plain) + $_CHROOT_SH rm .autofsck forcefsck 2>/dev/null || : + : | $_CHROOT_SH truncate fastboot 2>/dev/null || : + ;; + minit) + ;; + esac + "${INITCMD_PREPARE[@]}" + popd >/dev/null +} + +## Usage: prepareInit +function prepareStop +{ + pushd "$1/vdir" >/dev/null + case "$INITSTYLE" in + (sysv) + export PREVLEVEL=$RUNLEVEL_START # required by Debian's initscripts + ;; + esac + "${STOPCMD_PREPARE[@]}" + popd >/dev/null +} + + +function generateOptions +{ + _generateInterfaceOptions "$1" + test -n "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$1" + _generateNiceCommand "$1" + _generateInitOptions "$1" + _generateChcontextOptions "$1" + _generateScheduleOptions "$1" + _generatePersonalityOptions "$1" + + if test -n "$_IS_FAKEINIT"; then + CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit ) + OPTS_VCONTEXT_MIGRATE=( "${OPTS_VCONTEXT_MIGRATE[@]}" --initpid --disconnect ) + fi +} + +function _mountVserverInternal +{ + local fstab="$1" + local xflag= + + test -e "$fstab" || return 0 + shift + + pushd "$vdir" >/dev/null + # check whether / is mounted readonly or whether there is special + # magic regarding the mtab file; when etc/mtab can not be touched, + # add the '-n' flag to mount + test -w etc -o -w etc/mtab || xflag=-n + "$@" $_SECURE_MOUNT -a $xflag --chroot --fstab "$fstab" --rootfs no + popd >/dev/null +} + +function mountRootFS +{ + local cfgdir=$1 + local vdir=$1/vdir + local fstab="$cfgdir"/fstab + local xflag= + + test -e "$fstab" || return 0 + pushd "$vdir" >/dev/null + # check whether / is mounted readonly or whether there is special + # magic regarding the mtab file; when etc/mtab can not be touched, + # add the '-n' flag to mount + test -w etc -o -w etc/mtab || xflag=-n + $_SECURE_MOUNT -a $xflag --chroot --fstab "$fstab" --rootfs only -n + popd >/dev/null +} + +function mountVserver +{ + local cfgdir=$1 + local ns_opt=$2 + local vdir=$1/vdir + local mtab_src + + test -e "$cfgdir"/fstab -o \ + -e "$cfgdir"/fstab.local -o \ + -e "$cfgdir"/fstab.remote || return 0 + + findObject -r mtab_src "$cfgdir"/apps/init/mtab "$__CONFDIR"/.defaults/init/mtab "$__PKGLIBDEFAULTDIR"/mtab /dev/null + + pushd "$vdir" >/dev/null + $_CHROOT_SH truncate /etc/mtab <"$mtab_src" + popd >/dev/null + + test -n "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir" + + test -z "$NAMESPACE_CLEANUP" || isAvoidNamespace "$cfgdir" || \ + $_VNAMESPACE --cleanup + + _mountVserverInternal "$cfgdir"/fstab + _mountVserverInternal "$cfgdir"/fstab.local + _mountVserverInternal "$cfgdir"/fstab.remote $_CHBIND "${CHBIND_OPTS[@]}" + + isAvoidNamespace "$cfgdir" || \ + $_SECURE_MOUNT --rbind -n "$vdir" "/" +} + +function _umountVserverInternal +{ + local fstab="$1" + test -e "$fstab" || return 0 + shift + + $_TAC "$fstab" | { + is_ok=1 + while read src dst tmp; do + test -n "$tmp" || continue + case x"$src" in + (x\#*) continue;; + esac + + + "$@" $_EXEC_CD "$dst" $_UMOUNT -lfn . || is_ok= + done + test -n "$is_ok" + } +} + +function umountVserver +{ + local cfgdir=$1 + local vdir=$1/vdir + local is_ok=1 + + isAvoidNamespace "$cfgdir" || return 0 + test -e "$cfgdir"/fstab -o \ + -e "$cfgdir"/fstab.local || return 0 + test -n "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir" + + pushd "$vdir/" >/dev/null || return 1 + _umountVserverInternal "$cfgdir"/fstab.local || is_ok= + _umountVserverInternal "$cfgdir"/fstab $_CHBIND "${CHBIND_OPTS[@]}" || is_ok= + popd >/dev/null || return 1 + + test -n "$is_ok" +} + +## Usage: waitForSync +function initSync +{ + local _is_meth=sync + test -n "$_NEED_VSHELPER_SYNC" && \ + ! $_VSERVER_INFO - FEATURE vwait || _is_meth=async + + vshelper.initSync "$1" "$3" "$_is_meth" +} + +## Usage: initWait +function initWait +{ + if $_VSERVER_INFO - FEATURE vwait; then + local _is_tmpdir + _is_tmpdir=$($_MKTEMPDIR /tmp/vwaitstat.XXXXXX) + + $_NOHUP $_VWAIT --timeout "$VSHELPER_SYNC_TIMEOUT" \ + --terminate --status-fd 3 "$2" \ + >>$_is_tmpdir/out 2>$_is_tmpdir/err 3>$_is_tmpdir/fifo & + + echo "$!" >$_is_tmpdir/pid + eval "$3"=$_is_tmpdir + fi +} + + +## Usage: _waitForVWait +function _waitForVWait +{ + declare -a status + wait "$2" || : + getFileArray status "$1" + set -- ${status[0]} + + case "$1" in + (ERROR) warning $"\ +'vwait' exited with error '$2' which indicates that vserver could not +be stopped properly" + ;; + (FINISHED) ;; + (KILLED) warning $"\ +A timeout occured while waiting for the vserver to finish and it was +killed by sending a SIGKILL signal. Please investigate the reasons +and/or increase the timeout in apps/vshelper/sync-timeout." + ;; + (TIMEOUT|\?\?\?|*) warning $"\ +internal error: 'vwait' exited with an unexpected status '$1'; I will +try to continue but be prepared for unexpected events." + ;; + esac + + return 0 +} + +## Usage: waitForSync [] [] +function waitForSync +{ + local cfgdir=$1 + local fifo=$2 + local vwait_statdir=$3 + local vwait_pid=$4 + + if test -d "$vwait_statdir"; then + _waitForVWait "$vwait_statdir/fifo" "$( <$vwait_statdir/pid )" + elif test -n "$_NEED_VSHELPER_SYNC"; then + $_VSHELPER_SYNC "$fifo" "$VSHELPER_SYNC_TIMEOUT" || \ + warning $"\ +A timeout or other error occured while waiting for the synchronization +signal from vserver '$VSERVER_NAME'. +The vserver will be killed nevertheless..." + elif test "${#INITCMD_STOP_SYNC[@]}" -ne 0; then + "${INITCMD_STOP_SYNC[@]}" || \ + warning $"\ +Stop-synchronization for vserver '$VSERVER_NAME' failed. The vserver +will be killed nevertheless..." + fi + + test -z "$OPTION_FORCE_SYNC" -a ! -e "$cfgdir"/sync || + sleep 1 +} + +function _sourceWrap +{ + local vdir name flavor start i already_handled base + . "$@" +} + +## Usage: execScriptlets +function execScriptlets +{ + declare -r vdir=$1 + declare -r name=$2 + declare -r flavor=$3 + local base i + + for base in "$vdir"/scripts "$__CONFDIR"/.defaults/scripts; do + local DONT_SKIP_DEFAULTS= + local already_handled= + + for i in "$base/$flavor" "$base/$flavor.d"/*; do + isRegularFile "$i" || continue + test -r "$i" || continue + + already_handled=1 + local start= + test -x "$i" || start=_sourceWrap + $start "$i" "$flavor" "$name" + done + + test -z "$already_handled" -o -n "$DONT_SKIP_DEFAULTS" || break + done +} + + +function sanityCheck +{ + declare -r cfgdir=$1 + + ! test -e "$cfgdir"/fstab.local || + warning $"\ +WARNING: 'fstab' will *not* be executed in the network context of the + vserver anymore. Therefore, 'fstab.local' has the same functionality + and is obsoleted. When you need the old behaviour, put the mounts + into 'fstab.remote'" + + ! test -e "$cfgdir"/hostname -a ! -L "$cfgdir"/hostname || + warning $"\ +WARNING: The hostname is now configured in 'uts/nodename' but not in + 'hostname'." + + ! test -e "$cfgdir"/domainname -a ! -L "$cfgdir"/domainname || + warning $"\ +WARNING: The domainname is now configured in 'uts/domainname' but not + in 'domainname'." >&2 + + + local i + for i in "$cfgdir"/interfaces/*/only_ip; do + if test -e "$i"; then + local iface + iface=${i##$cfgdir/interfaces/} + iface=${iface%%/only_ip} + warning $"\ +WARNING: The 'only_ip' flag for interface '$iface' is deprecated; use + 'nodev' instead of" + fi + done + + find "$cfgdir" -type f -exec "$_CHECK_UNIXFILE" '{}' ';' + + vshelper.doSanityCheck + + $_VSERVER_INFO - VERIFYCAP || + panic $"capabilities are not enabled in kernel-setup" + + $_VSERVER_INFO - VERIFYPROC || + panic $"\ +/proc/uptime can not be accessed. Usually, this is caused by +procfs-security. Please read the FAQ for more details +http://www.linux-vserver.org/index.php?page=Linux-Vserver+FAQ" +}