3 # Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; version 2 of the License.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 declare -r _VS_NEWLINE=${_VS_NEWLINE:0-1}
35 test ! $mod "$i" || { file=$i; break; }
38 test -z "$i" -o "$file" || {
39 echo "Can not find file for '$var'; aborting"
59 test ! -s "$dst" || return 0
65 test "$tmp" -a -s "$tmp" || return 0
69 function getPhysicalDir
71 ( set -P && cd "$1" && pwd )
76 if test "$_VS_LOGFILE"; then
77 echo "$@" >>"$_VS_LOGFILE"
85 if test "$_VS_ERRFILE"; then
86 echo "$@" >>"$_VS_ERRFILE"
94 if test "$_VS_ERRFILE"; then
95 echo "$@" >>"$_VS_ERRFILE"
105 test -z "${DEBUG_EXEC:-}" || echo "$@"
106 test "${DEBUG_EXEC:-}" = noexec || exec "$@"
111 function _pkgMountBindDir()
113 test "$1" != "$2" || return 0
115 mount -n --bind "$1" "$2"
118 function _pkgSetVarsBase
122 if test -d "$vserver/vdir"; then
124 VDIR=$(getPhysicalDir "$vserver/vdir")
126 PKGDIR=$BASEDIR/apps/pkgmgmt
127 test -d "$PKGDIR" || {
128 echo "Can not find configuration-directory for package-managment tools"
131 findDir EXECDIR $PKGDIR/execdir /
133 VDIR=$(getPhysicalDir "$vserver")
138 BASEDIR=$CONFDIR/$vserver
139 test -d "$BASEDIR" || {
140 echo "Can not find configuration-directory"
145 test -d "$VDIR" || VDIR=$DEFAULT_VSERVERDIR/$vserver
146 VDIR=$(getPhysicalDir "$VDIR")
148 PKGDIR=$BASEDIR/apps/pkgmgmt
149 test -d "$PKGDIR" || {
150 echo "Can not find configuration-directory for package-managment tools"
154 findDir EXECDIR $PKGDIR/execdir /
159 if test -z "$WORKAROUND_106057"; then
162 _rpmdb_mntpoint=/.rpmdb
166 function _pkgSetVarsRPM
168 if test "$PKGDIR"; then
169 findDir RPMETCDIR $PKGDIR/rpmetc $PKGDIR/base/rpm/etc /etc/rpm
170 findDir RPMSTATEDIR $PKGDIR/rpmstate $PKGDIR/base/rpm/state
172 findDir RPMLIBDIR $PKGDIR/rpmlib /
175 findDir RPMETCDIR "$VDIR"/etc/rpm /etc/rpm
176 findDir RPMSTATEDIR "$VDIR"/var/lib/rpm
180 RPMSTATEDIR=$(getPhysicalDir "$RPMSTATEDIR")
181 RPMETCDIR=$(getPhysicalDir "$RPMETCDIR")
184 function _pkgSetVarsApt
186 if test "$PKGDIR"; then
187 findDir APTETCDIR $PKGDIR/aptetc $PKGDIR/base/apt/etc /etc/apt
188 findDir APTSTATEDIR $PKGDIR/aptstate $PKGDIR/base/apt/state
189 findDir APTCACHEDIR $PKGDIR/aptcache $PKGDIR/base/apt/cache
190 findDir APTARCHIVDIR $PKGDIR/aptarchives $PKGDIR/base/apt/archives /var/cache/apt/archives
192 findDir APTETCDIR "$VDIR"/etc/apt /etc/apt
193 findDir APTSTATEDIR "$VDIR"/var/state/apt
194 findDir APTCACHEDIR "$VDIR"/var/cache/apt
195 findDir APTARCHIVDIR "$VDIR"/var/cache/apt/archives /var/cache/apt/archives
198 findFile APT_CONFIG "$APTETCDIR"/apt.conf ""
199 test -z "$APT_CONFIG" || export APT_CONFIG
202 function _pkgMountBase
207 function _pkgMountApt
212 function _pkgMountRPM
214 _pkgMountBindDir "$RPMETCDIR" /etc/rpm
215 test "$RPMLIBDIR" = "/" || _pkgMountBindDir "$RPMLIBDIR" /usr/lib/rpm
217 "$_SECURE_MOUNT" --chroot "$VDIR" -n --secure --bind "$RPMSTATEDIR" "$_rpmdb_mntpoint"
218 test -z "$WORKAROUND_106057" || mount -n --bind "$RPMSTATEDIR" "$_rpmdb_mntpoint"
220 test -e "$VDIR"/proc/self/status || \
221 "$_SECURE_MOUNT" --chroot "$VDIR" -n --secure -t proc none /proc
224 function _pkgSetEnvBase
226 test "$EXECDIR" = "/" || {
228 LD_LIBRARY_PATH=$EXECDIR${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
231 export PATH LD_LIBRARY_PATH
234 function _pkgSetEnvApt
239 function _pkgSetEnvRPM
242 RPM_FAKE_NAMESPACE_MOUNTS=$_rpmdb_mntpoint
243 RPM_BINARY=$_VRPM_PRELOAD
245 export CUR_VSERVER RPM_FAKE_NAMESPACE_MOUNTS RPM_BINARY
257 rpm) _pkgSetVarsRPM;;
258 apt) _pkgSetVarsApt;;
259 *) echo "Unknown packaging flavor" >&2; exit 1;;
280 _PKG_VSERVER=$vserver
283 function isAvoidNamespace
287 $_VSERVER_INFO - FEATURE namespace || return 0
288 cfgdir=$($_VSERVER_INFO "$1" CFGDIR) || return 0
289 test ! -e "$cfgdir"/namespace || return 1
290 test -e "$CONFDIR"/.defaults/nonamespace -o \
291 -e "$cfgdir"/nonamespace
294 function getAllVservers
299 for i in $CONFDIR/*; do
300 test -d "$i" || continue
301 test ! -e "$i"/disabled || continue
302 test -d "$i"/vdir || continue
307 _tmp=( "${_tmp[@]}" "${i##$CONFDIR/}")
310 eval $1='( "${_tmp[@]}" )'
313 ## Usage: getVserverCtx <vdir> <result-varname> [<procnumber-varname> [<do-cleanup>]]
314 ## Returns: 0 iff vserver is running
315 function getVserverStatus
317 test -r "$1"/run || return 1
323 test "$3" || return 0
324 local _tmp=$($_VPS ax | $_AWK '{print $2}' | $_GREP -x "$_ctx" | $_WC -l )
328 if test "$_tmp" = 0; then
329 local runfile=$($_READLINK "$1/run")
330 test -z "$4" || rm -f "$runfile"
337 ## Usage: isCtxRunning <ctx>
338 function isCtxRunning
340 local _tmp=$($_VPS ax | $_AWK '{print $2}' | $_GREP -x "$1" | $_WC -l )
344 ## Usage: isVserverRunning <vdir> [<ctx-varname>]
345 function isVserverRunning
349 getVserverStatus "$1" ctx procnum 1 || return 1
350 test $procnum != 0 || return 1
351 test -z "$2" || eval "$2"=\$ctx
355 ## Called as 'getFileValue <varname> <filename>'
356 function getFileValue
358 test -r "$2" || return 0
362 ## Called as 'getFileArray <varname> <filename>'
363 function getFileArray
365 test -r "$2" || return 1
367 local IFS=$_VS_NEWLINE
368 eval "$1"='( $(< "$2") )'
371 function checkComponents
382 core) test -x "$_CHBIND" || failed=1;;
383 build) test -x "$_VSERVER_BUILD" || failed=1;;
384 sysv) test -x "$INITRDDIR/vserver" || failed=1;;
385 devel) test -d "$INCLUDEDIR/vserver.h" || failed=1;;
386 *) echo "Unknown component '$i'" >&2
391 test -z "$failed" || {
400 ## Usage: isKernelAPI <ver> [<cmp-modifier>]
403 local api=$($_VSERVER_INFO - APIVER) || api=0
404 test $[ $api ] -${2:-ge} $[ $1 ]
407 ## Usage: callInNamespace <vserver> <command> <args>*
408 function callInNamespace
412 isAvoidNamespace "$1" || \
413 ctx=$( $_VSERVER_INFO "$1" CONTEXT t ) || ctx=
417 $_VNAMESPACE --enter "$ctx" -- "$@"
423 ## Usage: pkgmgmt.guessStyle <vserver> <resultvar>
424 function pkgmgmt.guessStyle()
426 local vdir=$($_VSERVER_INFO "$1" VDIR) || {
427 echo $"Can not determine vserver-root" >&2
430 local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
432 if test "$cfgdir" -a -e "$cfgdir"/style; then
433 read style <"$cfgdir"/style
434 elif test -e "$vdir"/etc/redhat-release -o -e "$vdir"/etc/fedora-release; then
436 elif test -e "$vdir"/etc/mandrake-release; then
438 elif test -e "$vdir"/etc/debian_version; then
440 elif test -e "$vdir"/etc/SuSE-release; then
443 echo $"Can not determine packagemanagement style" >&2
451 ## Usage: pkgmgmt.isInternal <vserver>
452 ## returns true iff <vserver> is configured for internal packagemanagement
453 ## A typical application is
455 ## | pkgmgmt.isInternal "$vserver" || is_external=1
456 function pkgmgmt.isInternal
458 local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
460 test -z "$cfgdir" -o ! -d "$cfgdir" -o -e "$cfgdir"/internal
463 ## Usage: pkgmgmt.isAptAvailable <cfgdir> <vdir> [<is-internal>]
464 function pkgmgmt.isAptAvailable
468 local is_internal="$3"
471 if test "$is_internal"; then
473 test -d "$cfgdir"/base/apt -o -d "$cfgdir"/aptetc || have_apt=
476 for i in /bin /usr/bin /usr/local/bin; do
477 test ! -x "$vdir$i"/apt-get || { have_apt=1; break; }
481 test "$have_apt" && return 0 || return 1
484 function vshelper.doSanityCheck
486 local vshelper this_xid i
487 declare -a warnings=()
488 local solution_disable=
489 local solution_sysctl=
491 vshelper.isEnabled && vshelper.isEnabled warning || return 0
493 this_xid=$($_VSERVER_INFO - XID) ||
494 panic $"Failed to determine current context; aborting..."
496 ## Do nothing in other xid's; the helper will be executed in xid 0 only
497 test "$this_xid" = 0 || return 0
499 local proc_file=/proc/sys/kernel/vshelper
501 if ! test -r "$proc_file"; then
503 warnings=( "${warnings[@]}"
504 $"File '$proc_file' does not exists but is required for vshelper setup" )
507 vshelper=$(cat "$proc_file")
509 cmp -s "$vshelper" "$_VSHELPER" || {
510 warnings=( "${warnings[@]}"
511 $"The configured vshelper '$vshelper' does not match the 'vshelper'
512 script of the util-vserver package"
519 test -d "$VSHELPERSTATEDIR" || {
520 warnings=( "${warnings[@]}"
522 The vshelper state-directory '$VSHELPERSTATEDIR' does not exist;
523 since it is created by 'make install', this indicates a serious
524 problem with your util-vserver installation" )
528 test "${#warnings[@]}" -eq 0 || {
530 The following problem(s) were encountered while verifying vshelper
533 for i in "${warnings[@]}"; do
539 To fix this, you can:"
541 test -z "$solution_disable" || warning $"\
542 * disable vshelper entirely by executing
543 | touch \"$CONFDIR/.defaults/apps/vshelper/disabled\"
544 * disable only this message by executing
545 | touch \"$CONFDIR/.defaults/apps/vshelper/warning-disabled\""
547 test -x "$solution_sysctl" || warning $"\
548 * configure the util-vserver vshelper script, e.g. by adding
549 | kernel.vshelper = \"$_VSHELPER\"
550 to /etc/sysctl.conf and rebooting the machine, or by executing
551 | echo \"$_VSHELPER\" >$proc_file"
561 ## Usage: vshelper.isEnabled [<style>] [<vserver>]
562 function vshelper.isEnabled
564 local f=${1:+$1-}disabled
565 test ! -e "$CONFDIR"/.defaults/apps/vshelper/"$f" || return 1
566 $_VSERVER_INFO - FEATURE vshelper || return 1
568 local appdir=$($_VSERVER_INFO "$2" APPDIR vshelper) || return 0
569 test -z "$2" -o ! -e "$appdir/$f" || return 1
575 function vshelper._getHandlerInternal
580 shift ## HACK: see below the note about the 'set -u' mode
582 while test "$#" -ge 2; do
587 test "$mod" "$obj" || continue
596 (*) panic $"Internal error, unexpected modifier '$mod'"
604 ## Usage: vshelper.getHandler <result-var> <vserver> <action>
605 function vshelper.getHandler
607 local appdir=$($_VSERVER_INFO "$2" APPDIR vshelper) || appdir=
609 declare -a search_list=( X )
610 ## HACK: when we are in 'set -u' mode, empty lists are causing errors
612 test -z "$appdir" || search_list=( "${search_list[@]}" -x "$appdir/$3" )
613 test -z "$appdir" || search_list=( "${search_list[@]}" -e "$appdir/action" )
614 search_list=( "${search_list[@]}" -x "$CONFDIR"/.defaults/apps/vshelper/"$3" )
615 search_list=( "${search_list[@]}" -e "$CONFDIR"/.defaults/apps/vshelper/action )
617 ! vshelper._getHandlerInternal "$1" "${search_list[@]}" || return 0
621 ## Usage: vshelper.init <vserver> [<method> <args>*]
622 function vshelper.doInit
624 vshelper.isEnabled || return 0
626 local xid=$($_VSERVER_INFO "$1" CONTEXT false) || {
627 warning $"vshelper.init: can not determine xid of vserver '$vserver'"
631 local f="$VSHELPERSTATEDIR/$xid"
651 ## Usage: vshelper.doDestroy <vserver> <xid>
652 function vshelper.doDestroy
654 vshelper.isEnabled || return 0
656 rm -f "$VSHELPERSTATEDIR/$2"
659 ## Usage: vshelper.initSync <vserver> <pipe-varname>
660 function vshelper.initSync
662 local tmpdir=$(mktemp -d /tmp/vserver-stop.XXXXXX) || {
663 warning $"Failed to generate temporary directory for vshelper sync"
667 local fifo="$tmpdir"/pipe
669 vshelper.doInit "$VSERVER_DIR" sync "$fifo"
673 ## Usage: vshelper.getSyncTimeout <vserver> <varname>
674 function vshelper.getSyncTimeout
676 local appdir=$($_VSERVER_INFO "$1" APPDIR vshelper) || appdir=
679 findFile file ${appdir:+"$appdir"/sync-timeout} "$CONFDIR"/.defaults/apps/vshelper/sync-timeout ''
680 test "$file" || return 1