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 "${DEBUG_EXEC:-}" = noexec || exec "$@"
113 let tmp=$1+0 2>/dev/null || test -z "${1//0/}" -a "$1" || return 1
117 function _pkgMountBindDir()
119 test "$1" != "$2" || return 0
121 mount -n --bind "$1" "$2"
124 function _pkgSetVarsBase
128 if test -d "$vserver/vdir"; then
130 VDIR=$(getPhysicalDir "$vserver/vdir")
132 PKGDIR=$BASEDIR/apps/pkgmgmt
133 test -d "$PKGDIR" || {
134 echo "Can not find configuration-directory for package-managment tools"
137 findDir EXECDIR $PKGDIR/execdir /
139 VDIR=$(getPhysicalDir "$vserver")
144 BASEDIR=$CONFDIR/$vserver
145 test -d "$BASEDIR" || {
146 echo "Can not find configuration-directory"
151 test -d "$VDIR" || VDIR=$DEFAULT_VSERVERDIR/$vserver
152 VDIR=$(getPhysicalDir "$VDIR")
154 PKGDIR=$BASEDIR/apps/pkgmgmt
155 test -d "$PKGDIR" || {
156 echo "Can not find configuration-directory for package-managment tools"
160 findDir EXECDIR $PKGDIR/execdir /
165 if test -z "$WORKAROUND_106057"; then
168 _rpmdb_mntpoint=/.rpmdb
172 function _pkgSetVarsRPM
174 if test "$PKGDIR"; then
175 findDir RPMETCDIR $PKGDIR/rpmetc $PKGDIR/base/rpm/etc /etc/rpm
176 findDir RPMSTATEDIR $PKGDIR/rpmstate $PKGDIR/base/rpm/state
178 findDir RPMLIBDIR $PKGDIR/rpmlib /
181 findDir RPMETCDIR "$VDIR"/etc/rpm /etc/rpm
182 findDir RPMSTATEDIR "$VDIR"/var/lib/rpm
186 RPMSTATEDIR=$(getPhysicalDir "$RPMSTATEDIR")
187 RPMETCDIR=$(getPhysicalDir "$RPMETCDIR")
190 function _pkgSetVarsApt
192 if test "$PKGDIR"; then
193 findDir APTETCDIR $PKGDIR/aptetc $PKGDIR/base/apt/etc /etc/apt
194 findDir APTSTATEDIR $PKGDIR/aptstate $PKGDIR/base/apt/state
195 findDir APTCACHEDIR $PKGDIR/aptcache $PKGDIR/base/apt/cache
196 findDir APTARCHIVDIR $PKGDIR/aptarchives $PKGDIR/base/apt/archives /var/cache/apt/archives
198 findDir APTETCDIR "$VDIR"/etc/apt /etc/apt
199 findDir APTSTATEDIR "$VDIR"/var/state/apt
200 findDir APTCACHEDIR "$VDIR"/var/cache/apt
201 findDir APTARCHIVDIR "$VDIR"/var/cache/apt/archives /var/cache/apt/archives
204 findFile APT_CONFIG "$APTETCDIR"/apt.conf ""
205 test -z "$APT_CONFIG" || export APT_CONFIG
208 function _pkgMountBase
213 function _pkgMountApt
218 function _pkgMountRPM
220 _pkgMountBindDir "$RPMETCDIR" /etc/rpm
221 test "$RPMLIBDIR" = "/" || _pkgMountBindDir "$RPMLIBDIR" /usr/lib/rpm
223 "$_SECURE_MOUNT" --chroot "$VDIR" -n --secure --bind "$RPMSTATEDIR" "$_rpmdb_mntpoint"
224 test -z "$WORKAROUND_106057" || mount -n --bind "$RPMSTATEDIR" "$_rpmdb_mntpoint"
226 test -e "$VDIR"/proc/self/status || \
227 "$_SECURE_MOUNT" --chroot "$VDIR" -n --secure -t proc none /proc
230 function _pkgSetEnvBase
232 test "$EXECDIR" = "/" || {
234 LD_LIBRARY_PATH=$EXECDIR${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
237 export PATH LD_LIBRARY_PATH
240 function _pkgSetEnvApt
245 function _pkgSetEnvRPM
248 RPM_FAKE_NAMESPACE_MOUNTS=$_rpmdb_mntpoint
249 RPM_BINARY=$_VRPM_PRELOAD
251 export CUR_VSERVER RPM_FAKE_NAMESPACE_MOUNTS RPM_BINARY
263 rpm) _pkgSetVarsRPM;;
264 apt) _pkgSetVarsApt;;
265 *) echo "Unknown packaging flavor" >&2; exit 1;;
286 _PKG_VSERVER=$vserver
289 function isAvoidNamespace
293 $_VSERVER_INFO - FEATURE namespace || return 0
294 cfgdir=$($_VSERVER_INFO "$1" CFGDIR) || return 0
295 test ! -e "$cfgdir"/namespace || return 1
296 test -e "$CONFDIR"/.defaults/nonamespace -o \
297 -e "$cfgdir"/nonamespace
300 function getAllVservers
305 for i in $CONFDIR/*; do
306 test -d "$i" || continue
307 test ! -e "$i"/disabled || continue
308 test -d "$i"/vdir || continue
313 _tmp=( "${_tmp[@]}" "${i##$CONFDIR/}")
316 eval $1='( "${_tmp[@]}" )'
319 ## Usage: getVserverCtx <vdir> <result-varname> [<procnumber-varname> [<do-cleanup>]]
320 ## Returns: 0 iff vserver is running
321 function getVserverStatus
323 test -r "$1"/run || return 1
329 test "$3" || return 0
330 local _tmp=$($_VPS ax | $_AWK '{print $2}' | $_GREP -x "$_ctx" | $_WC -l )
334 if test "$_tmp" = 0; then
335 local runfile=$($_READLINK "$1/run")
336 test -z "$4" || rm -f "$runfile"
343 ## Usage: isCtxRunning <ctx>
344 function isCtxRunning
346 local _tmp=$($_VPS ax | $_AWK '{print $2}' | $_GREP -x "$1" | $_WC -l )
350 ## Usage: isVserverRunning <vdir> [<ctx-varname>]
351 function isVserverRunning
355 getVserverStatus "$1" ctx procnum 1 || return 1
356 test $procnum != 0 || return 1
357 test -z "$2" || eval "$2"=\$ctx
361 ## Called as 'getFileValue <varname> <filename>'
362 function getFileValue
364 test -r "$2" || return 0
368 ## Called as 'getFileArray <varname> <filename>'
369 function getFileArray
371 test -r "$2" || return 1
373 local IFS=$_VS_NEWLINE
374 eval "$1"='( $(< "$2") )'
377 function checkComponents
388 core) test -x "$_CHBIND" || failed=1;;
389 build) test -x "$_VSERVER_BUILD" || failed=1;;
390 sysv) test -x "$INITRDDIR/vserver" || failed=1;;
391 devel) test -d "$INCLUDEDIR/vserver.h" || failed=1;;
392 *) echo "Unknown component '$i'" >&2
397 test -z "$failed" || {
406 ## Usage: isKernelAPI <ver> [<cmp-modifier>]
409 local api=$($_VSERVER_INFO - APIVER) || api=0
410 test $[ $api ] -${2:-ge} $[ $1 ]
413 ## Usage: callInNamespace <vserver> <command> <args>*
414 function callInNamespace
418 isAvoidNamespace "$1" || \
419 ctx=$( $_VSERVER_INFO "$1" CONTEXT t ) || ctx=
423 $_VNAMESPACE --enter "$ctx" -- "$@"
429 ## Usage: pkgmgmt.guessStyle <vserver> <resultvar>
430 function pkgmgmt.guessStyle()
432 local vdir=$($_VSERVER_INFO "$1" VDIR) || {
433 echo $"Can not determine vserver-root" >&2
436 local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
438 if test "$cfgdir" -a -e "$cfgdir"/style; then
439 read style <"$cfgdir"/style
440 elif test -e "$vdir"/etc/redhat-release -o -e "$vdir"/etc/fedora-release; then
442 elif test -e "$vdir"/etc/mandrake-release; then
444 elif test -e "$vdir"/etc/debian_version; then
446 elif test -e "$vdir"/etc/SuSE-release; then
449 echo $"Can not determine packagemanagement style" >&2
457 ## Usage: pkgmgmt.isInternal <vserver>
458 ## returns true iff <vserver> is configured for internal packagemanagement
459 ## A typical application is
461 ## | pkgmgmt.isInternal "$vserver" || is_external=1
462 function pkgmgmt.isInternal
464 local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
466 test -z "$cfgdir" -o ! -d "$cfgdir" -o -e "$cfgdir"/internal
469 ## Usage: pkgmgmt.isAptAvailable <cfgdir> <vdir> [<is-internal>]
470 function pkgmgmt.isAptAvailable
474 local is_internal="$3"
477 if test "$is_internal"; then
479 test -d "$cfgdir"/base/apt -o -d "$cfgdir"/aptetc || have_apt=
482 for i in /bin /usr/bin /usr/local/bin; do
483 test ! -x "$vdir$i"/apt-get || { have_apt=1; break; }
487 test "$have_apt" && return 0 || return 1
490 function vshelper.doSanityCheck
492 local vshelper this_xid i
493 declare -a warnings=()
494 local solution_disable=
495 local solution_sysctl=
497 vshelper.isEnabled && vshelper.isEnabled warning || return 0
499 this_xid=$($_VSERVER_INFO - XID) ||
500 panic $"Failed to determine current context; aborting..."
502 ## Do nothing in other xid's; the helper will be executed in xid 0 only
503 test "$this_xid" = 0 || return 0
505 local proc_file=/proc/sys/kernel/vshelper
507 if ! test -r "$proc_file"; then
509 warnings=( "${warnings[@]}"
510 $"File '$proc_file' does not exists but is required for vshelper setup" )
513 vshelper=$(cat "$proc_file")
515 cmp -s "$vshelper" "$_VSHELPER" || {
516 warnings=( "${warnings[@]}"
517 $"The configured vshelper '$vshelper' does not match the 'vshelper'
518 script of the util-vserver package"
525 test -d "$VSHELPERSTATEDIR" || {
526 warnings=( "${warnings[@]}"
528 The vshelper state-directory '$VSHELPERSTATEDIR' does not exist;
529 since it is created by 'make install', this indicates a serious
530 problem with your util-vserver installation" )
534 test "${#warnings[@]}" -eq 0 || {
536 The following problem(s) were encountered while verifying vshelper
539 for i in "${warnings[@]}"; do
545 To fix this, you can:"
547 test -z "$solution_disable" || warning $"\
548 * disable vshelper entirely by executing
549 | touch \"$CONFDIR/.defaults/apps/vshelper/disabled\"
550 * disable only this message by executing
551 | touch \"$CONFDIR/.defaults/apps/vshelper/warning-disabled\""
553 test -x "$solution_sysctl" || warning $"\
554 * configure the util-vserver vshelper script, e.g. by adding
555 | kernel.vshelper = \"$_VSHELPER\"
556 to /etc/sysctl.conf and rebooting the machine, or by executing
557 | echo \"$_VSHELPER\" >$proc_file"
567 ## Usage: vshelper.isEnabled [<style>] [<vserver>]
568 function vshelper.isEnabled
570 local f=${1:+$1-}disabled
571 test ! -e "$CONFDIR"/.defaults/apps/vshelper/"$f" || return 1
572 $_VSERVER_INFO - FEATURE vshelper || return 1
574 local appdir=$($_VSERVER_INFO "$2" APPDIR vshelper) || return 0
575 test -z "$2" -o ! -e "$appdir/$f" || return 1
581 function vshelper._getHandlerInternal
586 shift ## HACK: see below the note about the 'set -u' mode
588 while test "$#" -ge 2; do
593 test "$mod" "$obj" || continue
602 (*) panic $"Internal error, unexpected modifier '$mod'"
610 ## Usage: vshelper.getHandler <result-var> <vserver> <action>
611 function vshelper.getHandler
613 local appdir=$($_VSERVER_INFO "$2" APPDIR vshelper) || appdir=
615 declare -a search_list=( X )
616 ## HACK: when we are in 'set -u' mode, empty lists are causing errors
618 test -z "$appdir" || search_list=( "${search_list[@]}" -x "$appdir/$3" )
619 test -z "$appdir" || search_list=( "${search_list[@]}" -e "$appdir/action" )
620 search_list=( "${search_list[@]}" -x "$CONFDIR"/.defaults/apps/vshelper/"$3" )
621 search_list=( "${search_list[@]}" -e "$CONFDIR"/.defaults/apps/vshelper/action )
623 ! vshelper._getHandlerInternal "$1" "${search_list[@]}" || return 0
627 ## Usage: vshelper.init <vserver> [<method> <args>*]
628 function vshelper.doInit
630 vshelper.isEnabled || return 0
632 local xid=$($_VSERVER_INFO "$1" CONTEXT false) || {
633 warning $"vshelper.init: can not determine xid of vserver '$vserver'"
637 local f="$VSHELPERSTATEDIR/$xid"
657 ## Usage: vshelper.doDestroy <vserver> <xid>
658 function vshelper.doDestroy
660 vshelper.isEnabled || return 0
662 rm -f "$VSHELPERSTATEDIR/$2"
665 ## Usage: vshelper.initSync <vserver> <pipe-varname>
666 function vshelper.initSync
668 local tmpdir=$(mktemp -d /tmp/vserver-stop.XXXXXX) || {
669 warning $"Failed to generate temporary directory for vshelper sync"
673 local fifo="$tmpdir"/pipe
675 vshelper.doInit "$VSERVER_DIR" sync "$fifo"
679 ## Usage: vshelper.getSyncTimeout <vserver> <varname>
680 function vshelper.getSyncTimeout
682 local appdir=$($_VSERVER_INFO "$1" APPDIR vshelper) || appdir=
685 findFile file ${appdir:+"$appdir"/sync-timeout} "$CONFDIR"/.defaults/apps/vshelper/sync-timeout ''
686 test "$file" || return 1