X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=scripts%2Fvserver.functions;h=77ca912b97af9272610a6c13c645e74d9de69e7a;hb=HEAD;hp=2098b4540566543d83037dcfaaf5212ded2166ea;hpb=73afdcb42e2afc885dfb06995a6dac6a0c725040;p=util-vserver.git diff --git a/scripts/vserver.functions b/scripts/vserver.functions index 2098b45..77ca912 100644 --- a/scripts/vserver.functions +++ b/scripts/vserver.functions @@ -42,6 +42,7 @@ declare -a OPTS_VCONTEXT_CREATE=() declare -a OPTS_VCONTEXT_MIGRATE=() declare -a OPTS_VCONTEXT_ENTER=() OPT_VCONTEXT_CHROOT=--chroot +OPT_VCONTEXT_CLOSE_FD="" declare -a OPTS_VATTRIBUTE=( --flag fakeinit ) declare -a OPTS_VSCHED=() declare -a OPTS_ENV=() @@ -75,9 +76,10 @@ N_CONTEXT= SILENT_OPT= CGROUP_MNT=/dev/cgroup -CGROUP_SUBSYS=all +declare -a CGROUP_SUBSYS=() declare -a CGROUP_INHERIT=( cpuset.cpus cpuset.mems ) CGROUP_BASE="" +CGROUP_MNT_PER_SS="" : ${VSERVER_NAME:=$(basename "$VSERVER_DIR")} @@ -153,15 +155,21 @@ function _generateNiceCommand function _generateIONiceCommand { local vdir=$1 - local ionice_class=2 - local ionice_priority=0 + local ionice_class= + local ionice_priority= test -n "$_IONICE" || return 0 test -r "$vdir/ionice/class" && read ionice_class <"$vdir"/ionice/class test -r "$vdir/ionice/priority" && read ionice_priority <"$vdir"/ionice/priority - IONICE_CMD=( $_IONICE -c$ionice_class -n$ionice_priority ) + test -n "$ionice_class$ionice_priority" || return 0 + + if test -z "$ionice_class" -a -n "$ionice_priority"; then + IONICE_CMD=( $_IONICE -c2 -n"$ionice_priority" ) + else + IONICE_CMD=( $_IONICE ${ionice_class:+-c$ionice_class} ${ionice_priority:+-n$ionice_priority} ) + fi } function _generatePersonalityOptions @@ -205,6 +213,13 @@ function _generateBCapabilityOptions _readFileToArray "$vdir"/bcapabilities OPTS_VATTRIBUTE --bcap } +function _generateUMaskOptions +{ + local vdir=$1 + + _readFileToArray "$vdir"/umask OPTS_VATTRIBUTE --umask +} + function _generateCapabilityOptions { local vdir=$1 @@ -341,7 +356,7 @@ function _generateInitOptions ! isNumber "${RUNLEVEL_START:-3}" || INITCMD_PREPARE=( $_FAKE_RUNLEVEL "${RUNLEVEL_START:-3}" /var/run/utmp ) ;; - (xgentoo) + (xgentoo|xopenrc) test -n "$RUNLEVEL_START" || RUNLEVEL_START="default" RC_PATH=/usr/sbin:/usr/bin:/sbin:/bin @@ -441,6 +456,7 @@ function _generateChcontextOptions _generateCapabilityOptions "$vdir" _generateFlagOptions "$vdir" + _generateUMaskOptions "$vdir" CHCONTEXT_OPTS=( $SILENT_OPT \ "${CHCONTEXT_FLAG_OPTS[@]}" \ @@ -452,6 +468,8 @@ function _generateChcontextOptions OPTS_VCONTEXT_CREATE=( $SILENT_OPT \ ${ctx:+--xid "$ctx"} ) + findFile file "$vdir"/keepfds "$__CONFDIR/.defaults/keepfds" "" + test -n "$file" || OPT_VCONTEXT_CLOSE_FD="--closefd" ## put '--secure' at front so that it can be overridden OPTS_VATTRIBUTE=( --secure --flag default "${OPTS_VATTRIBUTE[@]}" ) } @@ -761,7 +779,11 @@ function disableInterfaces IP_ADDR_FLUSH) ;; IP_LINK) ;; ## Ignore the link-down command for now IP_ROUTE) $_IP route del "$@";; - TUNCTL) $_TUNCTL --~persist "$1";; + TUNCTL) + local dev="$1" + shift + $_TUNCTL --~persist "$@" "$dev" + ;; *) echo "Unknown interface-command type '$type'" >&2; false;; esac done @@ -824,8 +846,11 @@ 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 + local -a dirs=( $($_CHROOT_SH realpath /var/run /var/lock | $_SED 's!^/*!!' || :) ) + local dir + for dir in "${dirs[@]}"; do + $_FIND $dir ! -type d -print0 | xargs -0r $_CHROOT_SH rm + done ;; plain) $_CHROOT_SH rm .autofsck forcefsck 2>/dev/null || : @@ -1394,11 +1419,19 @@ function _namespaceCleanup done done + # keep cgroup mount points + list=( "${list[@]}" "${CGROUP_MNT}" ) + if test -n "$CGROUP_MNT_PER_SS"; then + for ss in "${CGROUP_SUBSYS[@]}"; do + list=( "${list[@]}" "${CGROUP_MNT}/${ss}" ) + done + fi + local -a list_umount while read -r dev path opts; do test -n "$path" || continue - for i in "$root" /dev /proc; do - path_dir="${path}/" + path_dir="${path}/" + for i in "$root" /dev /proc /sys; do test "${path_dir#${i}/}" != "${path_dir}" && continue 2 done for i in "${list[@]}" /; do @@ -1452,17 +1485,18 @@ function _generateCgroupOptions hasCgroup || return 0 - findFile file "$__CONFDIR/.defaults/cgroup/mnt" "" + findFile file "$__CONFDIR/.defaults/cgroup/subsys" "" if test -n "$file"; then - read CGROUP_MNT < "$file" + _readFileToArray CGROUP_SUBSYS "$file" + else + CGROUP_SUBSYS=( $($_AWK '/^#/ { next; } $1 == "ns" { next; } $4 != "0" { print $1; }' /proc/cgroups) ) fi - findFile file "$__CONFDIR/.defaults/cgroup/subsys" "" + findFile file "$__CONFDIR/.defaults/cgroup/mnt" "" if test -n "$file"; then - read CGROUP_SUBSYS < "$file" - elif $_GREP -q '^ns[[:space:]]' /proc/cgroups; then - # Hack for the ns subsystem, with which we are incompatible - CGROUP_SUBSYS=$($_SED '/^#/d;/^ns[[:space:]]/d;s/[[:space:]].*//' /proc/cgroups | \ - (s=""; while read x; do test -n "$s" && s="$s,"; s="$s$x"; done; echo "$s")) + read CGROUP_MNT < "$file" + elif test -d /sys/fs/cgroup -a -d /sys/fs/cgroup/"${CGROUP_SUBSYS[0]}"; then + CGROUP_MNT=/sys/fs/cgroup + CGROUP_MNT_PER_SS=1 fi findFile file "$__CONFDIR/.defaults/cgroup/inherit" "" if test -n "$file"; then @@ -1474,6 +1508,10 @@ function _generateCgroupOptions test "$CGROUP_BASE" != "${CGROUP_BASE%/}" || \ CGROUP_BASE="${CGROUP_BASE}/" fi + findFile file "$__CONFDIR/.defaults/cgroup/per-ss" "" + if test -n "$file"; then + CGROUP_MNT_PER_SS=1 + fi return 0 } @@ -1481,8 +1519,19 @@ function _generateCgroupOptions function useCgroup { hasCgroup || return 1 - test -e "$CGROUP_MNT/tasks" || return 1 - memcg="" + if test -n "$CGROUP_MNT_PER_SS"; then + local existing=0 + local ss + for ss in "${CGROUP_SUBSYS[@]}"; do + if test -e "$CGROUP_MNT/$ss/tasks"; then + let existing=${existing}+1 + fi + done + test "$existing" -gt 0 || return 1 + else + test -e "$CGROUP_MNT/tasks" || return 1 + fi + local memcg="" if $_VSERVER_INFO - FEATURE memcg; then memcg=1 fi @@ -1500,6 +1549,8 @@ function _handleCgroup local i local j local parent + local -a mnts + local ss useCgroup "$vdir" || return 0 @@ -1511,47 +1562,63 @@ function _handleCgroup name="$VSERVER_NAME" fi - if test "$action" = "attach"; then - if test -n "$CGROUP_BASE"; then - local -a dirs=() - i="$CGROUP_MNT/$CGROUP_BASE" - while test "$CGROUP_MNT" != "$i"; do - dirs=( "$i" "${dirs[@]}" ) - i="${i%/*}" - done - for i in "${dirs[@]}"; do - if mkdir "$i" 2>/dev/null; then - parent="${i%/*}" - for j in "${CGROUP_INHERIT[@]}"; do - test -f "$parent/$j" || continue - cat "$parent/$j" > "$i/$j" + if test -n "$CGROUP_MNT_PER_SS"; then + mnts=() + for ss in "${CGROUP_SUBSYS[@]}"; do + mnts=( "${mnts[@]}" "$CGROUP_MNT/$ss" ) + done + else + mnts=( "$CGROUP_MNT" ) + fi + for mnt in "${mnts[@]}"; do + test -d "$mnt" || continue + if test "$action" = "attach"; then + if test -n "$CGROUP_BASE"; then + local -a dirs=() + i="$mnt/$CGROUP_BASE" + while test "$mnt" != "$i"; do + dirs=( "$i" "${dirs[@]}" ) + i="${i%/*}" + done + for i in "${dirs[@]}"; do + if mkdir "$i" 2>/dev/null; then + parent="${i%/*}" + for j in "${CGROUP_INHERIT[@]}"; do + test -f "$parent/$j" || continue + cat "$parent/$j" > "$i/$j" + done + fi + done + fi + if mkdir "$mnt/$CGROUP_BASE$name" 2>/dev/null; then + parent="$mnt/$CGROUP_BASE$name" + parent="${parent%/*}" + for i in "${CGROUP_INHERIT[@]}"; do + test -f "$parent/$i" || continue + cat "$parent/$i" > "$mnt/$CGROUP_BASE$name/$i" + done + + if test -n "$dir"; then + shopt -s nullglob + for i in "$dir"/*; do + f="${i##*/}" + test "$f" != mnt -a "$f" != subsys -a \ + "$f" != inherit -a "$f" != name -a "$f" != base -a \ + "$f" != per-ss \ + || continue + if test -n "$CGROUP_MNT_PER_SS"; then + ss="${f%%.*}" + test "$ss" = "${mnt##*/}" || continue + fi + cat "$i" > "$mnt/$CGROUP_BASE$name/$f" done fi - done - fi - if mkdir "$CGROUP_MNT/$CGROUP_BASE$name" 2>/dev/null; then - parent="$CGROUP_MNT/$CGROUP_BASE$name" - parent="${parent%/*}" - for i in "${CGROUP_INHERIT[@]}"; do - test -f "$parent/$i" || continue - cat "$parent/$i" > "$CGROUP_MNT/$CGROUP_BASE$name/$i" - done - - if test -n "$dir"; then - shopt -s nullglob - for i in "$dir"/*; do - f="${i##*/}" - test "$f" != mnt -a "$f" != subsys -a \ - "$f" != inherit -a "$f" != name -a "$f" != base \ - || continue - cat "$i" > "$CGROUP_MNT/$CGROUP_BASE$name/$f" - done fi + echo "$$" > "$mnt/$CGROUP_BASE$name/tasks" + elif test "$action" = "destroy"; then + rmdir "$mnt/$name" 2>/dev/null || : fi - echo "$$" > "$CGROUP_MNT/$CGROUP_BASE$name/tasks" - elif test "$action" = "destroy"; then - rmdir "$CGROUP_MNT/$name" 2>/dev/null || : - fi + done return 0 }