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.
19 # $VSERVER_DIR ... path to vserver-cfg dir
20 # $VSERVER_NAME ... name of vserver
22 declare -a NICE_CMD=()
23 declare -a CHBIND_OPTS=()
24 declare -a CAP_OPTS=()
25 declare -a CHCONTEXT_INIT_OPTS=()
26 declare -a CHCONTEXT_FLAG_OPTS=()
27 declare -a CHCONTEXT_OPTS=()
28 declare -a CAPCHROOT_OPTS=()
29 declare -a INTERFACES=()
31 declare -a INITCMD_START=()
32 declare -a INITCMD_START_SYNC=()
33 declare -a INITCMD_STOP=()
34 declare -a INITCMD_STOP_SYNC=()
35 declare -a INITCMD_PREPARE=()
36 declare -a INITKILL_SEQ=()
37 declare -a ENTER_SHELL=()
39 declare -a OPTS_VCONTEXT_CREATE=()
40 declare -a OPTS_VCONTEXT_MIGRATE=()
41 declare -a OPTS_VATTRIBUTE=( --flag fakeinit )
42 declare -a OPTS_VSCHED=()
44 declare -a VSERVER_EXTRA_CMDS=()
46 VSHELPER_SYNC_TIMEOUT=30
49 _HAVE_INTERFACE_OPTIONS=
60 : ${VSERVER_NAME:=$(basename "$VSERVER_DIR")}
62 if test -e "$VSERVER_DIR"/noisy -o "$OPTION_VERBOSE"; then
68 function _generateChbindOptions
74 test "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$vdir"
76 local f=$vdir/interfaces/bcast
77 getFileValue bcast "$f"
79 CHBIND_OPTS=( $SILENT_OPT ${bcast:+--bcast "$bcast"} )
81 for i in "${INTERFACES[@]}"; do
82 CHBIND_OPTS=( "${CHBIND_OPTS[@]}" --ip "$i" )
85 _HAVE_CHBIND_OPTIONS=1
88 function _generateNiceCommand
93 test -r "$vdir/nice" || return 0;
94 read nice <"$vdir"/nice
96 NICE_CMD=( $_NICE -$nice )
99 function _generateCCapabilityOptions
103 local f="$vdir"/ccapabilities
105 test -e "$f" || return 0
109 (*) OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --ccap "$cap" );;
114 function _generateBCapabilityOptions
118 local f="$vdir"/bcapabilities
120 test -e "$f" || return 0
124 (*) OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --bcap "$cap" );;
129 function _generateCapabilityOptions
134 _generateBCapabilityOptions "$vdir"
135 _generateCCapabilityOptions "$vdir"
137 test -e "$vdir"/capabilities || return 0
146 CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" )
147 CAPCHROOT_OPTS=( "${CAPCHROOT_OPTS[@]}" --nochroot )
150 CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" )
153 done <"$vdir"/capabilities
156 function getEnterShell
162 getFileValue ENTER_SHELL "$vdir"/shell
164 test "$ENTER_SHELL" || {
166 for i in "/bin/bash -login" "/bin/sh -l" /bin/csh; do
168 test -x "$vdir/vdir/$1" || continue
175 ## Usage: sendKillSequence <ctx> <signal> [<wait> <signal>]*
176 function sendKillSequence
182 while isCtxRunning "$ctx"; do
183 test -z "$wait" || sleep "$wait"
185 $_VKILL -c "$ctx" ${1:+-s "$1"} 2>/dev/null || :
192 function _generateInitOptions
195 local cfgdir=$vdir/apps/init
202 INITCMD_START_SYNC=()
206 INITKILL_SEQ=( 15 5 9 )
207 CHCONTEXT_INIT_OPTS=()
210 getFileValue INITSTYLE "$cfgdir"/style
211 getFileValue runlevel_start "$cfgdir"/runlevel
212 getFileValue runlevel_start "$cfgdir"/runlevel.start
213 getFileValue runlevel_stop "$cfgdir"/runlevel.stop
214 getFileArray INITKILL_SEQ "$cfgdir"/killseq || :
216 case x"$INITSTYLE" in
218 test "$runlevel_start" || runlevel_start=3
219 test "$runlevel_stop" || runlevel_stop=6
221 for i in /etc/init.d/rc /etc/rc.d/rc; do
222 test -x "$vdir/vdir/$i" || continue
223 INITCMD_START=( "$i" "$runlevel_start" )
224 INITCMD_STOP=( "$i" "$runlevel_stop" )
226 INITCMD_PREPARE=( $_FAKE_RUNLEVEL "$runlevel_start" /var/run/utmp )
230 INITCMD_START=( /sbin/init )
231 INITCMD_STOP=( /sbin/init )
233 _NEED_VSHELPER_SYNC=1
234 test -z "$runlevel_start" || INITCMD_START=( "${INITCMD_START[@]}" "$runlevel_start" )
235 test -z "$runlevel_stop" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$runlevel_stop" )
239 INITCMD_START=( /sbin/minit-start )
240 INITCMD_STOP=( /sbin/minit-stop )
242 INITCMD_START_SYNC=( "$_INITSYNC_MINIT_START" "$vdir" )
243 _NEED_VSHELPER_SYNC=1
244 test -z "$runlevel_start" || INITCMD_START=( "${INITCMD_START[@]}" "$runlevel_start" )
245 test -z "$runlevel_stop" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$runlevel_stop" )
249 INITCMD_START=( /sbin/rc default )
250 INITCMD_STOP=( /sbin/rc shutdown )
254 (*) echo "Unknown init-style '$INITSTYLE'; aborting" >&2;
258 getFileArray INITCMD_START "$cfgdir"/cmd.start || :
259 getFileArray INITCMD_STOP "$cfgdir"/cmd.stop || :
260 getFileArray INITCMD_START_SYNC "$cfgdir"/cmd.start-sync || :
261 getFileArray INITCMD_STOP_SYNC "$cfgdir"/cmd.stop-sync || :
262 getFileArray INITCMD_PREPARE "$cfgdir"/cmd.prepare || :
265 test "$OPTION_FORCE_SYNC" -o -e "$cfgdir"/sync || {
266 INITCMD_START_SYNC=()
271 if vshelper.isEnabled; then
272 vshelper.getSyncTimeout "$vdir" VSHELPER_SYNC_TIMEOUT || :
278 function _generateFlagOptions
282 CHCONTEXT_FLAG_OPTS=()
284 test ! -e "$vdir"/flags || \
293 OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --flag "$flag" )
294 CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}"
300 isAvoidNamespace "$vdir" || {
302 CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" --flag namespace )
306 function _generateChcontextOptions
309 local ctx hostname domainname
314 read ctx <"$vdir"/context || :
316 read hostname <"$vdir"/uts/nodename || read hostname <"$vdir"/hostname || :
317 read domainname <"$vdir"/uts/domainname || read domainname <"$vdir"/domainname || :
321 test \( ! -e "$vdir"/hostname -o -e "$vdir"/uts/nodename \) -a \
322 \( ! -e "$vdir"/domainname -o -e "$vdir"/uts/domainname \) || {
324 The hostname is now configured in 'uts/nodename' but not in 'hostname' anymore;
325 the old way is not supported when using 2.6 kernel patches so it is strongly
326 recommended to move these files.
328 The same applies to 'domainname' vs. 'uts/domainname'." >&2
331 test -z "$S_CONTEXT" || ctx=$S_CONTEXT
333 _generateCapabilityOptions "$vdir"
334 _generateFlagOptions "$vdir"
336 CHCONTEXT_OPTS=( $SILENT_OPT \
337 "${CHCONTEXT_FLAG_OPTS[@]}" \
340 ${ctx:+--ctx "$ctx"} \
341 ${hostname:+--hostname "$hostname"} \
342 ${domainname:+--domainname "$domainname"} )
344 OPTS_VCONTEXT_CREATE=( $SILENT_OPT \
345 ${ctx:+--xid "$ctx"} )
346 ## put '--secure' at front so that it can be overridden
347 OPTS_VATTRIBUTE=( --secure "${OPTS_VATTRIBUTE[@]}" )
350 function _generateScheduleOptions
353 local f="$vdir"/schedule
354 test -e "$f" || return 0
356 local fill_rate interval tokens tokens_min tokens_max cpu_mask
364 read cpu_mask || cpu_mask=
368 test "$cpu_mask" || {
369 echo $"Bad content in '$f'; aborting..." >&2
373 OPTS_VSCHED=( --fill-rate "$fill_rate" --interval "$interval" \
374 --tokens "$tokens" --tokens_min "$tokens_min" \
375 --tokens_max "$tokens_max" --cpu_mask "$cpu_mask" )
378 function _getInterfaceValue
388 read tmp <"$i/$val" && break || :
395 ## Usage: _transformMask2Prefix <result-varname> <prefix> <mask>
396 function _transformMask2Prefix
401 $_MASK2PREFIX "$3" || tmp=$?
408 function _addInterfaceCmd
410 eval INTERFACE_CMDS_${INTERFACE_CMDS_IDX}='( "$@" )'
411 let ++INTERFACE_CMDS_IDX
414 ## Usage: _generateMac <var> <iface> <ctx>
415 function _generateMac
418 echo $"Interface basename '$iface' must be either a number, or the mac must be configured explicitly" >&2
422 eval $1=$(printf "f0:ff:%02x:%02x:%02x:%02x" $[ (~($2>>8)) & 0xff ] $[ ($2 & 0xff) ] $[ ($3>>8) & 0xff ] $[ $3 & 0xff ])
425 ## Usage: _processSingleInterface <interface-directory>
426 function _processSingleInterface
441 _getInterfaceValue ip '' "$iface"
442 _getInterfaceValue extip '' "$iface" "$iface/.."
443 _getInterfaceValue dev '' "$iface" "$iface/.."
444 _getInterfaceValue prefix '' "$iface" "$iface/.."
445 _getInterfaceValue mask '' "$iface" "$iface/.."
446 _getInterfaceValue bcast '' "$iface" "$iface/.."
447 _getInterfaceValue name '' "$iface"
448 _getInterfaceValue scope '' "$iface" "$iface/.."
449 _getInterfaceValue mac '' "$iface"
451 test "$ip" || { echo $"Can not read ip for '$iface'" >&2; return 1; }
453 test ! -e "$iface"/down || up=
455 while test "$dev"; do
456 _transformMask2Prefix prefix "$prefix" "$mask"
457 INTERFACES=( "${INTERFACES[@]}" "$ip${prefix:+/$prefix}" )
459 test ! -e "$iface"/nodev || break
460 test ! -e "$iface"/only_ip || {
462 echo $"The 'only_ip' flag for interface '$iface' is deprecated; use 'nodev' instead of" >&2
468 test -d /proc/net/vlan || {
469 echo -e $"VLAN device-name used, but vlan subsystem not enabled.\nTry to execute 'modprobe 8021q' before starting the vservers" >&2
472 test -f /proc/net/vlan || {
473 _addInterfaceCmd VCONFIG "${dev/./ }"
474 _addInterfaceCmd IP_ADDR 127.0.0.1/8 broadcast 127.255.255.255 dev "$dev"
475 _addInterfaceCmd IP_LINK "$dev" $up
480 if ! test -e "$iface"/indirect; then
481 _addInterfaceCmd IP_ADDR "$ip${prefix:+/$prefix}" broadcast ${bcast:-+} ${name:+label "$dev:$name"} dev "$dev"
482 #_addInterfaceCmd IP_ROUTE "$ip${prefix:+/$prefix}" dev "$dev"
483 _addInterfaceCmd IP_LINK "$dev" $up
484 elif ! test "$ctx"; then
485 echo $"Using 'dummy' (indirect) for interface '$dev' requires a fixed context number; dynamic ctx are not supported" >&2
488 test "$mac" || _generateMac mac "$(basename $iface)" "$ctx" || return 1
489 _addInterfaceCmd MODPROBE dummy "$dev"
490 _addInterfaceCmd IP_LINK dev dummy0 address "$mac"
491 _addInterfaceCmd NAMEIF "$dev" "$mac"
492 _addInterfaceCmd IP_ADDR "$ip${prefix:+/$prefix}" dev "$dev"
493 test -z "$extip" || _addInterfaceCmd IPTABLES "$ip${prefix:+/$prefix}" ${name:+label "$dev:$name"} "$ctx" "$extip"
500 ## Usage: _generateInterfaceOptions <vserver-directory>
501 function _generateInterfaceOptions
506 test ! -e "$1"/context || read ctx <"$1"/context
508 for iface in "$1/interfaces/"*; do
509 test -d "$iface" || continue
510 test ! -e "$iface"/disabled || continue
512 _processSingleInterface "$iface"
514 _HAVE_INTERFACE_OPTIONS=1
517 function enableInterfaces
522 lock "$LOCKDIR"/vserver.interfaces
524 while test $i -lt $INTERFACE_CMDS_IDX; do
525 eval var='( "${INTERFACE_CMDS_'$i'[@]}" )'
536 $_MODPROBE ${name:+-o "$name"} "$mod" "$@"
538 NAMEIF) $_NAMEIF "$@";;
539 VCONFIG) $_VCONFIG add "$@";;
540 IP_ADDR) $_IP addr add "$@";;
541 IP_ADDR_FLUSH) $_IP addr flush "$@";;
542 IP_LINK) $_IP link set "$@";;
543 IP_ROUTE) $_IP route add "$@";;
544 *) echo "Unknown interface-command type '$type'" >&2; false;;
553 function disableInterfaces
555 test "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$1"
557 local i=$INTERFACE_CMDS_IDX
560 lock "$LOCKDIR"/vserver.interfaces
562 while test $i -gt 0; do
565 eval var='( "${INTERFACE_CMDS_'$i'[@]}" )'
572 MODPROBE) $_RMMOD "${2:-$1}";;
574 VCONFIG) $_VCONFIG rem "$@";;
575 IP_ADDR) $_IP addr del "$@";;
577 IP_LINK) ;; ## Ignore the link-down command for now
578 IP_ROUTE) $_IP route del "$@";;
579 *) echo "Unknown interface-command type '$type'" >&2; false;;
586 ## Usage: prepareInit <vserver-directory>
589 pushd "$1/vdir" >/dev/null
592 { find var/run ! -type d -print0; \
593 find var/lock ! -type d -print0; } | xargs -0r $_CHROOT_RM
596 $_CHROOT_RM .autofsck forcefsck
597 : | $_CHROOT_CAT fastboot
602 "${INITCMD_PREPARE[@]}"
606 function generateOptions
608 _generateInterfaceOptions "$1"
609 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$1"
610 _generateNiceCommand "$1"
611 _generateInitOptions "$1"
612 _generateChcontextOptions "$1"
613 _generateScheduleOptions "$1"
615 if test "$_IS_FAKEINIT"; then
616 CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit )
617 OPTS_VCONTEXT_MIGRATE=( "${OPTS_VCONTEXT_MIGRATE[@]}" --initpid --disconnect )
621 function _mountVserverInternal
624 test -e "$fstab" || return 0
627 "$@" $_SECURE_MOUNT -a --chroot "$vdir" --fstab "$fstab"
630 function mountVserver
637 test -e "$cfgdir"/fstab -o \
638 -e "$cfgdir"/fstab.local || return 0
640 findObject -r mtab_src "$vdir"/apps/init/mtab "$CONFDIR"/.defaults/init/mtab "$PKGLIBDEFAULTDIR"/mtab /dev/null
642 pushd "$vdir" >/dev/null
643 $_CHROOT_CAT /etc/mtab <"$mtab_src"
646 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir"
648 test -z "$NAMESPACE_CLEANUP" || isAvoidNamespace "$cfgdir" || \
649 $_VNAMESPACE --cleanup
651 _mountVserverInternal "$cfgdir"/fstab $_CHBIND "${CHBIND_OPTS[@]}"
652 _mountVserverInternal "$cfgdir"/fstab.local
654 isAvoidNamespace "$cfgdir" || \
655 $_SECURE_MOUNT --rbind -n "$vdir" "/"
658 function _umountVserverInternal
661 test -e "$fstab" || return 0
666 while read src dst tmp; do
667 test "$tmp" || continue
673 "$@" $_EXEC_CD "$dst" $_UMOUNT -lfn . || is_ok=
679 function umountVserver
685 isAvoidNamespace "$cfgdir" || return 0
686 test -e "$cfgdir"/fstab -o \
687 -e "$cfgdir"/fstab.local || return 0
688 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir"
690 pushd "$vdir/" >/dev/null || return 1
691 _umountVserverInternal "$cfgdir"/fstab.local || is_ok=
692 _umountVserverInternal "$cfgdir"/fstab $_CHBIND "${CHBIND_OPTS[@]}" || is_ok=
693 popd >/dev/null || return 1
698 ## Usage: waitForSync <vserver> <vshelper-fifo-varname>
701 test -z "$_NEED_VSHELPER_SYNC" || vshelper.initSync "$1" "$2"
704 ## Usage: waitForSync <vserver> [<vshelper-fifo>]
710 if test "$_NEED_VSHELPER_SYNC"; then
711 $_VSHELPER_SYNC "$fifo" "$VSHELPER_SYNC_TIMEOUT" || \
713 A timeout or other error occured while waiting for the synchronization
714 signal from vserver '$VSERVER_NAME'.
715 The vserver will be killed nevertheless..."
716 elif test "${#INITCMD_STOP_SYNC[@]}" -ne 0; then
717 "${INITCMD_STOP_SYNC[@]}" || \
719 Stop-synchronization for vserver '$VSERVER_NAME' failed. The vserver
720 will be killed nevertheless..."
723 test -z "$OPTION_FORCE_SYNC" -a ! -e "$cfgdir"/sync ||
729 local vdir name flavor start i already_handled base
733 ## Usage: execScriptlets <vserver-cfgdir> <vserver-name> <script-flavor>
734 function execScriptlets
741 for base in "$vdir"/scripts "$CONFDIR"/.defaults/scripts; do
742 local DONT_SKIP_DEFAULTS=
743 local already_handled=
745 for i in "$base/$flavor" "$base/$flavor.d"/*; do
746 test -f "$i" -a -r "$i" || continue
749 test -x "$i" || start=_sourceWrap
750 $start "$i" "$flavor" "$name"
753 test -z "$already_handled" -o "$DONT_SKIP_DEFAULTS" || break