- bsc#954872 - script block-dmmd not working as expected - libxl:
error: libxl_dm.c (Additional fixes) block-dmmd OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=441
This commit is contained in:
Charles Arnold
Git OBS Bridge
parent
fe96474232
commit
82ff4f51e5
361
block-dmmd
361
block-dmmd
@ -2,7 +2,7 @@
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# Usage: block-dmmd [add args | remove args]
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#
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# the dmmd device syntax (in xm commands/configs) is something like:
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# the dmmd device syntax (in xm/xl commands/configs) is something like:
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# dmmd:md;/dev/md0;md;/dev/md1;lvm;/dev/vg1/lv1
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# or
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# dmmd:lvm;/dev/vg1/lv1;lvm;/dev/vg1/lv2;md;/dev/md0
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@ -16,30 +16,49 @@
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# dmmd:md;My-MD-name;lvm;/dev/vg1/lv1
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#
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# History:
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# 2016-05-27, mlatimer@suse.com:
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# Merge improvements by loic.devulder@mpsa.com. Highlights include:
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# - Re-write and simplification to speed up the script!
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# - Add some (useful) logging messages and comments
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# Minor tweaks and logging improvements
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# 2016-05-26, mlatimer@suse.com:
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# Verify MD activation if mdadm returns 2
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# 2016-05-20, mlatimer@suse.com:
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# Strip leading "dmmd:" if present in xenstore params value
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# 2013-07-03, loic.devulder@mpsa.com:
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# Partial rewrite of the script for supporting MD activation by name
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# Partial rewrite of the script for supporting MD activation by name
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# 2009-06-09, mh@novell.com:
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# Emit debugging messages into a temporary file; if no longer needed,
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# just comment the exec I/O redirection below
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# Make variables used in functions local to avoid global overridings
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# Use vgscan and vgchange where required
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# Use the C locale to avoid dealing with localized messages
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# Assign output from assembling an MD device to a variable to aid debugging
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# Emit debugging messages into a temporary file; if no longer needed,
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# just comment the exec I/O redirection below
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# Make variables used in functions local to avoid global overridings
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# Use vgscan and vgchange where required
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# Use the C locale to avoid dealing with localized messages
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# Assign output from assembling an MD device to a variable to aid
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# debugging
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# We do not want to deal with localized messages:
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LANG=C
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LC_MESSAGES=C
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export LANG LC_MESSAGES
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# We do not want to deal with localized messages
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# We use LC_ALL because LC_ALL superse LANG
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# But we also use LANG because some applications may still use LANG...
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export LC_ALL=C
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export LANG=${LC_ALL}
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dir=$(dirname "$0")
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. "$dir/block-common.sh"
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# Loading common libraries
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. $(dirname $0)/block-common.sh
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#exec >> /tmp/block-dmmd-`date +%F_%T.%N`.log 2>&1
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#echo shell-flags: $-
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# Constants
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typeset -rx MDADM_BIN=/sbin/mdadm
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typeset -rx LVCHANGE_BIN=/sbin/lvchange
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typeset -rx PVSCAN_BIN=/sbin/pvscan
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typeset -rx VGSCAN_BIN=/sbin/vgscan
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typeset -rx VGCHANGE_BIN=/sbin/vgchange
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typeset -rx DATE_LOG="date +%F_%T.%N"
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typeset -rx DATE_SEC="date +%s"
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command=$1
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# Uncomment for debugging purposes
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# exec >> /tmp/block-dmmd-$(${DATE_LOG}).log 2>&1
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# echo shell-flags: $-
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# We check for errors ourselves:
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# We check for errors ourselves
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set +e
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function run_mdadm()
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@ -48,21 +67,24 @@ function run_mdadm()
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local msg
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local rc
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msg="$(/sbin/mdadm $mdadm_cmd 2>&1)"
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msg="$(${MDADM_BIN} ${mdadm_cmd} 2>&1)"
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rc=$?
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case "$msg" in
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*"has been started"* | *"already active"* )
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return 0
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;;
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*"is already in use"* )
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# hmm, might be used by another device in this domU
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# leave it to upper layers to detect a real error
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return 2
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;;
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* )
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return $rc
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;;
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case "${msg}" in
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*"has been started"* | *"already active"*)
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return 0
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;;
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*"is already in use"*)
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# Hmm, might be used by another device in this domU
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# Leave it to upper layers to detect a real error
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return 2
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;;
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*)
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return ${rc}
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;;
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esac
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# Normally we should not get here, but if this happens
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# we have to return an error
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return 1
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}
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@ -72,36 +94,49 @@ function activate_md()
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local par=$1
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local cfg dev dev_path rc t mdadm_opts
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if [ ${par} = ${par%%(*} ]; then
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if [[ ${par} == ${par%%(*} ]]; then
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# No configuration file specified
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dev=$par
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cfg=
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dev=${par}
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cfg=""
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else
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dev=${par%%(*}
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t=${par#*(}
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cfg="-c ${t%%)*}"
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dev=${par%%(*}
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t=${par#*(}
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cfg="-c ${t%%)*}"
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fi
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# Looking for device name or aliase
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if [ ${dev:0:1} = / ]; then
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dev_path=${dev%/*}
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mdadm_opts=
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if [[ ${dev:0:1} == / ]]; then
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dev_path=${dev%/*}
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mdadm_opts=""
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else
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dev_path=/dev/md
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mdadm_opts="-s -N"
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dev_path=/dev/md
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mdadm_opts="-s -N"
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fi
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# Is md device already active?
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# Logging message
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echo "[$(${DATE_LOG})] activate MD device ${dev}..." >&2
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# Is MD device already active?
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# We need to use full path name, aliase is not possible...
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if [ -e $dev_path/${dev##*/} ]; then
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/sbin/mdadm -Q -D $dev_path/${dev##*/} 2>/dev/null | grep -iq state.*\:.*inactive || return 0
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${MDADM_BIN} -Q -D $dev_path/${dev##*/} 2>/dev/null \
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| grep -iq state.*\:.*inactive || return 0
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fi
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run_mdadm "-A $mdadm_opts $dev $cfg"
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# Activate MD device
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run_mdadm "-A ${mdadm_opts} ${dev} ${cfg}"
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rc=$?
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[ $rc -eq 2 ] && return 0
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# A return code of 2 can indicate the array configuration was incorrect
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if [[ ${rc} == 2 ]]; then
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# Logging message
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echo "[$(${DATE_LOG})] verifying MD device ${dev} activation..." >&2
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return $rc
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# If the array is active, return 0, otherwise return an error
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${MDADM_BIN} -Q -D $dev_path/${dev##*/} &>/dev/null && return 0 \
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|| return 1
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fi
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return ${rc}
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}
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function deactivate_md()
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@ -109,22 +144,25 @@ function deactivate_md()
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local par=$1
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local dev
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if [ ${par} = ${par%%(*} ]; then
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if [[ ${par} == ${par%%(*} ]]; then
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# No configuration file specified
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dev=${par}
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dev=${par}
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else
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dev=${par%%(*}
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dev=${par%%(*}
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fi
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# Looking for device name or aliase
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if [ ${dev:0:1} = / ]; then
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dev_path=${dev%/*}
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if [[ ${dev:0:1} == / ]]; then
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dev_path=${dev%/*}
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else
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dev_path=/dev/md
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dev_path=/dev/md
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fi
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# Logging message
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echo "[$(${DATE_LOG})] deactivate MD device ${dev}..." >&2
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# We need the device name only while deactivating
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/sbin/mdadm -S ${dev_path}/${dev##*/} > /dev/null 2>&1
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${MDADM_BIN} -S ${dev_path}/${dev##*/} > /dev/null 2>&1
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return $?
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}
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@ -132,169 +170,200 @@ function deactivate_md()
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function activate_lvm()
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{
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local run_timeout=90
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local parsed_timeout
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local end_time
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# If /etc/xen/xend-config.sxp exists (e.g. SLES11), use
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# device-create-timeout, instead of the default setting
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if [[ -f /etc/xen/xend-config.sxp ]]; then
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parsed_timeout=$(grep -v "^[ \t]*#.*" /etc/xen/xend-config.sxp \
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|sed -n 's/(device-create-timeout \+\([0-9]\+\))/\1/p')
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if [[ ! -z $parsed_timeout ]]; then
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run_timeout=$((${parsed_timeout}*9/10))
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fi
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fi
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# First scan for PVs and VGs
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# We need this for using md device as PV
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/sbin/pvscan > /dev/null 2>&1
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# /sbin/vgscan --mknodes > /dev/null 2>&1
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# We need this for using MD device as PV
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${PVSCAN_BIN} > /dev/null 2>&1
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# ${VGSCAN_BIN} --mknodes > /dev/null 2>&1
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# Logging message
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echo "[$(${DATE_LOG})] activate LVM device ${dev}..." >&2
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# Set end_time for the loop
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(( end_time = $(${DATE_SEC}) + run_timeout ))
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end_time=$(($(date +%s)+${run_timeout}))
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while true; do
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/sbin/lvchange -aey $1 > /dev/null 2>&1
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${LVCHANGE_BIN} -aey $1 > /dev/null 2>&1
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if [ $? -eq 0 -a -e $1 ]; then
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return 0
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fi
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if [ $? -eq 0 -a -e $1 ]; then
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return 0
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fi
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sleep 0.1
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if [ $(date +%s) -ge ${end_time} ]; then
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log err "Failed to activate $1 within ${run_timeout} seconds"
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return 1
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fi
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sleep 0.1
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# If it takes too long we need to return an error
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if (( $(${DATE_SEC}) >= end_time )); then
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log err "Failed to activate $1 within ${run_timeout} seconds"
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return 1
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fi
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done
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# Normally we should not get here, but if this happens
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# we have to return an error
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return 1
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}
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function deactivate_lvm()
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{
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/sbin/lvchange -aen $1 > /dev/null 2>&1
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# Logging message
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echo "[$(${DATE_LOG})] deactivate LVM device ${dev}..." >&2
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${LVCHANGE_BIN} -aen $1 > /dev/null 2>&1
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if [ $? -eq 0 ]; then
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# We may have to deactivate the VG now, but can ignore errors:
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# /sbin/vgchange -an ${1%/*} || :
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# We may have to deactivate the VG now, but can ignore errors:
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# ${VGCHANGE_BIN} -an ${1%/*} || :
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# Maybe we need to cleanup the LVM cache:
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# /sbin/vgscan --mknodes || :
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return 0
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# ${VGSCAN_BIN} --mknodes || :
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return 0
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fi
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return 1
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}
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BP=100
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SP=$BP
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VBD=
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# Variables
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typeset command=$1
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typeset BP=100
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typeset SP=${BP}
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typeset VBD
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typeset -a stack
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declare -a stack
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function push()
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{
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if [ -z "$1" ]; then
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return
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fi
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let "SP -= 1"
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stack[$SP]="${1}"
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local value="$1"
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[[ -n "${value}" ]] \
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&& stack[$((--SP))]="${value}"
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return 0
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}
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function pop()
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{
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VBD=
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[[ "${SP}" != "${BP}" ]] \
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&& VBD=${stack[$((SP++))]} \
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|| VBD=""
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if [ "$SP" -eq "$BP" ]; then
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return
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fi
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VBD=${stack[$SP]}
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let "SP += 1"
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return 0
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}
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function activate_dmmd()
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{
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case $1 in
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md)
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case "$1" in
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"md")
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activate_md $2
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return
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return $?
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;;
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lvm)
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"lvm")
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activate_lvm $2
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return
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return $?
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;;
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esac
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# Normally we should not get here, but if this happens
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# we have to return an error
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return 1
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}
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function deactivate_dmmd()
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{
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case "$1" in
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md)
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"md")
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deactivate_md $2
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return
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return $?
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;;
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lvm)
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"lvm")
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deactivate_lvm $2
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return
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return $?
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;;
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esac
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# Normally we should not get here, but if this happens
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# we have to return an error
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return 1
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}
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function cleanup_stack()
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{
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while [ 1 ]; do
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while true; do
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pop
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if [ -z "$VBD" ]; then
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break
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fi
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deactivate_dmmd $VBD
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[[ -z "${VBD}" ]] && break
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deactivate_dmmd ${VBD}
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done
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}
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function parse_par()
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{
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local ac par rc s t # Make these explicitly local vars
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# Make these vars explicitly local
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local ac par rc s t
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ac=$1
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par="$2"
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par="$par;"
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while [ 1 ]; do
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par="${par};"
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while true; do
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t=${par%%;*}
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if [ -z "$t" ]; then
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return 0
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fi
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[[ -z "${t}" ]] && return 0
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par=${par#*;}
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s=${par%%;*}
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if [ -z "$s" ]; then
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return 1
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fi
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[[ -z "${s}" ]] && return 1
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par=${par#*;}
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if [ "$ac" = "activate" ]; then
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activate_dmmd $t $s
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rc=$?
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if [ $rc -ne 0 ]; then
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return 1
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fi
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if [[ "${ac}" == "activate" ]]; then
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activate_dmmd ${t} ${s} \
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|| return 1
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fi
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push "$t $s"
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push "${t} ${s}"
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done
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}
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case "${command}" in
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"add")
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p=$(xenstore-read ${XENBUS_PATH}/params) || true
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claim_lock "dmmd"
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dmmd=${p#dmmd:}
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case "$command" in
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add)
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p=`xenstore-read $XENBUS_PATH/params` || true
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claim_lock "dmmd"
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dmmd=${p#dmmd:}
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parse_par activate "$dmmd"
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rc=$?
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if [ $rc -ne 0 ]; then
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cleanup_stack
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release_lock "dmmd"
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exit 1
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fi
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lastparam=${dmmd##*;}
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usedevice=${lastparam%(*}
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xenstore-write $XENBUS_PATH/node "$usedevice"
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write_dev "$usedevice"
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release_lock "dmmd"
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exit 0
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;;
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if ! parse_par activate "${dmmd}"; then
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cleanup_stack
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release_lock "dmmd"
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exit 1
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fi
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remove)
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p=`xenstore-read $XENBUS_PATH/params` || true
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claim_lock "dmmd"
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dmmd=${p#dmmd:}
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parse_par noactivate "$dmmd"
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cleanup_stack
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release_lock "dmmd"
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exit 0
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;;
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lastparam=${dmmd##*;}
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usedevice=${lastparam%(*}
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xenstore-write ${XENBUS_PATH}/node "${usedevice}"
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write_dev "${usedevice}"
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release_lock "dmmd"
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exit 0
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;;
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"remove")
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p=$(xenstore-read ${XENBUS_PATH}/params) || true
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claim_lock "dmmd"
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dmmd=${p#dmmd:}
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parse_par noactivate "${dmmd}"
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cleanup_stack
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release_lock "dmmd"
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exit 0
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;;
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esac
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# Normally we should not get here, but if this happens
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# we have to return an error
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return 1
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@ -5,6 +5,13 @@ Tue Jun 21 08:26:51 MDT 2016 - carnold@suse.com
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xen-4.7.0-testing-src.tar.bz2
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- Drop CVE-2014-3672-qemut-xsa180.patch
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-------------------------------------------------------------------
|
||||
Thu Jun 16 16:27:25 MDT 2016 - carnold@suse.com
|
||||
|
||||
- bsc#954872 - script block-dmmd not working as expected - libxl:
|
||||
error: libxl_dm.c (Additional fixes)
|
||||
block-dmmd
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Fri Jun 10 14:23:51 UTC 2016 - ohering@suse.de
|
||||
|
||||
|
||||
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Reference in New Issue
Block a user