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=()
45 _HAVE_INTERFACE_OPTIONS=
54 : ${VSERVER_NAME:=$(basename "$VSERVER_DIR")}
56 if test -e "$VSERVER_DIR"/noisy -o "$OPTION_VERBOSE"; then
62 function _generateChbindOptions
68 test "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$vdir"
70 local f=$vdir/interfaces/bcast
71 getFileValue bcast "$f"
73 CHBIND_OPTS=( $SILENT_OPT ${bcast:+--bcast "$bcast"} )
75 for i in "${INTERFACES[@]}"; do
76 CHBIND_OPTS=( "${CHBIND_OPTS[@]}" --ip "$i" )
79 _HAVE_CHBIND_OPTIONS=1
82 function _generateNiceCommand
87 test -r "$vdir/nice" || return 0;
88 read nice <"$vdir"/nice
90 NICE_CMD=( $_NICE -$nice )
93 function _generateCapabilityOptions
98 test -e "$vdir"/capabilities || return 0
107 OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]" --cap "$cap" )
108 CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" )
109 CAPCHROOT_OPTS=( "${CAPCHROOT_OPTS[@]}" --nochroot )
112 OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]" --cap "$cap" )
113 CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" );;
115 done <"$vdir"/capabilities
118 function getEnterShell
124 getFileValue ENTER_SHELL "$vdir"/shell
126 test "$ENTER_SHELL" || {
128 for i in "/bin/bash -login" "/bin/sh -l" /bin/csh; do
130 test -x "$vdir/vdir/$1" || continue
137 ## Usage: sendKillSequence <ctx> <signal> [<wait> <signal>]*
138 function sendKillSequence
144 while isCtxRunning "$ctx"; do
145 test -z "$wait" || sleep "$wait"
147 $_VKILL -c "$ctx" ${1:+-s "$1"}
154 function _generateInitOptions
157 local cfgdir=$vdir/apps/init
164 INITCMD_START_SYNC=()
168 INITKILL_SEQ=( 15 5 9 )
169 CHCONTEXT_INIT_OPTS=()
172 getFileValue INITSTYLE "$cfgdir"/style
173 getFileValue runlevel_start "$cfgdir"/runlevel
174 getFileValue runlevel_start "$cfgdir"/runlevel.start
175 getFileValue runlevel_stop "$cfgdir"/runlevel.stop
176 getFileArray INITKILL_SEQ "$cfgdir"/killseq
178 case x"$INITSTYLE" in
180 test "$runlevel_start" || runlevel_start=3
181 test "$runlevel_stop" || runlevel_stop=6
183 for i in /etc/init.d/rc /etc/rc.d/rc; do
184 test -x "$vdir/vdir/$i" || continue
185 INITCMD_START=( "$i" "$runlevel_start" )
186 INITCMD_STOP=( "$i" "$runlevel_stop" )
188 INITCMD_PREPARE=( $_FAKE_RUNLEVEL "$runlevel_start" /var/run/utmp )
192 INITCMD_START=( /sbin/init )
193 INITCMD_STOP=( /sbin/init )
194 CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit )
195 OPTS_VCONTEXT_MIGRATE=( "${OPTS_VCONTEXT_MIGRATE[@]}" --fakeinit --disconnect )
196 test -z "$runlevel_start" || INITCMD_START=( "${INITCMD_START[@]}" "$runlevel_start" )
197 test -z "$runlevel_stop" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$runlevel_stop" )
201 INITCMD_START=( /sbin/minit-start )
202 INITCMD_STOP=( /sbin/minit-stop )
203 CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit )
204 INITCMD_START_SYNC=( "$_INITSYNC_MINIT_START" "$vdir" )
205 INITCMD_STOP_SYNC=( "$_INITSYNC_MINIT_STOP" "$vdir" )
206 OPTS_VCONTEXT_MIGRATE=( "${OPTS_VCONTEXT_MIGRATE[@]}" --fakeinit --disconnect )
207 test -z "$runlevel_start" || INITCMD_START=( "${INITCMD_START[@]}" "$runlevel_start" )
208 test -z "$runlevel_stop" || INITCMD_STOP=( "${INITCMD_STOP[@]}" "$runlevel_stop" )
212 *) echo "Unknown init-style '$INITSTYLE'; aborting" >&2;
216 getFileArray INITCMD_START "$cfgdir"/cmd.start
217 getFileArray INITCMD_STOP "$cfgdir"/cmd.stop
218 getFileArray INITCMD_START_SYNC "$cfgdir"/cmd.start-sync
219 getFileArray INITCMD_STOP_SYNC "$cfgdir"/cmd.stop-sync
220 getFileArray INITCMD_PREPARE "$cfgdir"/cmd.prepare
223 test -e "$cfgdir"/sync -o "$OPTION_FORCE_SYNC" || {
224 INITCMD_START_SYNC=()
229 function _generateFlagOptions
233 CHCONTEXT_FLAG_OPTS=()
235 test -e "$vdir"/flags || return 0
242 CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit )
243 OPTS_VCONTEXT_MIGRATE=( "${OPTS_VCONTEXT_MIGRATE[@]}" --fakeinit --disconnect )
246 OPTS_VATTRIBUTE=( "${OPTS_VATTRIBUTE[@]}" --flag "$flag" )
247 CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}"
253 isAvoidNamespace "$cfgdir" || {
255 CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" --flag namespace )
259 function _generateChcontextOptions
262 local ctx hostname domainname
267 read ctx <"$vdir"/context || :
268 read hostname <"$vdir"/hostname || :
269 read domainname <"$vdir"/domainname || :
272 test -z "$S_CONTEXT" || ctx=$S_CONTEXT
274 _generateCapabilityOptions "$vdir"
275 _generateFlagOptions "$vdir"
277 CHCONTEXT_OPTS=( $SILENT_OPT \
278 "${CHCONTEXT_FLAG_OPTS[@]}" \
281 ${ctx:+--ctx "$ctx"} \
282 ${hostname:+--hostname "$hostname"} \
283 ${domainname:+--domainname "$domainname"} )
285 OPTS_VCONTEXT_CREATE=( $SILENT_OPT \
286 ${ctx:+--xid "$ctx"} )
287 ## put '--secure' at front so that it can be overridden
288 OPTS_VATTRIBUTE=( --secure "${OPTS_VATTRIBUTE[@]}" )
291 function _getInterfaceValue
301 read tmp <"$i/$val" && break || :
308 ## Usage: _transformMask2Prefix <result-varname> <prefix> <mask>
309 function _transformMask2Prefix
314 $_MASK2PREFIX "$3" || tmp=$?
321 function _addInterfaceCmd
323 eval INTERFACE_CMDS_${INTERFACE_CMDS_IDX}='( "$@" )'
324 let ++INTERFACE_CMDS_IDX
327 ## Usage: _processSingleInterface <interface-directory>
328 function _processSingleInterface
340 _getInterfaceValue ip '' "$iface"
341 _getInterfaceValue dev '' "$iface" "$iface/.."
342 _getInterfaceValue prefix '' "$iface" "$iface/.."
343 _getInterfaceValue mask '' "$iface" "$iface/.."
344 _getInterfaceValue bcast '' "$iface" "$iface/.."
345 _getInterfaceValue name '' "$iface"
346 _getInterfaceValue scope '' "$iface" "$iface/.."
348 test "$ip" || { echo $"Can not read ip for '$iface'" >&2; return 1; }
350 test ! -e "$iface"/only_ip || unset dev
353 _transformMask2Prefix prefix "$prefix" "$mask"
357 test -d /proc/net/vlan || {
358 echo -e $"VLAN device-name used, but vlan subsystem not enabled.\nTry to execute 'modprobe 8021q' before starting the vservers" >&2
361 test -f /proc/net/vlan || {
362 _addInterfaceCmd VCONFIG "${dev/./ }"
363 _addInterfaceCmd IP_ADDR 127.0.0.1/8 broadcast 127.255.255.255 dev "$dev"
364 _addInterfaceCmd IP_LINK "$dev"
369 INTERFACES=( "${INTERFACES[@]}" "$ip${prefix:+/$prefix}" )
370 _addInterfaceCmd IP_ADDR "$ip${prefix:+/$prefix}" broadcast ${bcast:-+} ${name:+label "$dev:$name"} dev "$dev"
371 #_addInterfaceCmd IP_ROUTE "$ip${prefix:+/$prefix}" dev "$dev"
372 _addInterfaceCmd IP_LINK "$dev"
376 ## Usage: _generateInterfaceOptions <vserver-directory>
377 function _generateInterfaceOptions
381 for iface in "$1/interfaces/"*; do
382 test -d "$iface" || continue
383 test ! -e "$iface"/disabled || continue
385 _processSingleInterface "$iface"
387 _HAVE_INTERFACE_OPTIONS=1
390 function enableInterfaces
395 while test $i -lt $INTERFACE_CMDS_IDX; do
396 eval var='( "${INTERFACE_CMDS_'$i'[@]}" )'
401 VCONFIG) $_VCONFIG add "${var[@]}";;
402 IP_ADDR) $_IP addr add "${var[@]}";;
403 IP_LINK) $_IP link set "${var[@]}" up;;
404 IP_ROUTE) $_IP route add "${var[@]}";;
405 *) echo "Unknown interface-command type '$type'" >&2; false;;
412 function disableInterfaces
414 test "$_HAVE_INTERFACE_OPTIONS" || _generateInterfaceOptions "$1"
416 local i=$INTERFACE_CMDS_IDX
419 while test $i -gt 0; do
422 eval var='( "${INTERFACE_CMDS_'$i'[@]}" )'
427 VCONFIG) $_VCONFIG rem "${var[@]}";;
428 IP_ADDR) $_IP addr del "${var[@]}";;
429 IP_LINK) ;; ## Ignore the link-down command for now
430 IP_ROUTE) $_IP route del "${var[@]}";;
431 *) echo "Unknown interface-command type '$type'" >&2; false;;
436 ## Usage: prepareInit <vserver-directory>
439 pushd "$1/vdir" >/dev/null
442 { find var/run ! -type d -print0; \
443 find var/lock ! -type d -print0; } | xargs -0r $_CHROOT_RM
448 "${INITCMD_PREPARE[@]}"
452 function generateOptions
454 _generateInterfaceOptions "$1"
455 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$1"
456 _generateNiceCommand "$1"
457 _generateInitOptions "$1"
458 _generateChcontextOptions "$1"
461 function mountVserver
468 test -e "$cfgdir"/fstab || return 0
470 findObject -r mtab_src "$vdir"/apps/init/mtab "$CONFDIR"/.defaults/init/mtab "$PKGLIBDEFAULTDIR"/mtab /dev/null
472 pushd "$vdir" >/dev/null
473 $_CHROOT_CAT /etc/mtab <"$mtab_src"
476 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir"
478 test -z "$NAMESPACE_CLEANUP" || isAvoidNamespace "$cfgdir" || \
479 $_VNAMESPACE --cleanup
481 $_CHBIND "${CHBIND_OPTS[@]}" \
482 $_SECURE_MOUNT -a --chroot "$vdir" --fstab "$cfgdir"/fstab
484 isAvoidNamespace "$cfgdir" || \
485 $_SECURE_MOUNT --rbind -n "$vdir" "/"
488 function umountVserver
495 isAvoidNamespace "$cfgdir" || return 0
496 test -e "$cfgdir"/fstab || return 0
497 test "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$cfgdir"
499 pushd "$vdir/" >/dev/null
500 tac "$cfgdir"/fstab | while read src dst tmp; do
501 test "$tmp" || continue
506 $_CHBIND "${CHBIND_OPTS[@]}" $_EXEC_CD "$dst" \
507 $_UMOUNT -lfn . || is_ok=
516 local vdir name flavor start i
520 ## Usage: execScriptlets <vserver-cfgdir> <vserver-name> <script-flavor>
521 function execScriptlets
529 for i in "$vdir/scripts/$flavor" "$vdir/scripts/$flavor.d"/*; do
530 test -f "$i" -a -r "$i" || continue
531 test -x "$i" || start=_sourceWrap
532 $start "$i" "$flavor" "$name"