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dc2f87737d
since that will usually be /etc/ctdb/state and storing this under /etc is just wrong. Add a new variable CTDB_VARDIR that defaults to /var/ctdb and store the data there instead. (This used to be ctdb commit 516423c25afa9861d9988096efa8a4a2b12b31b1)
267 lines
6.6 KiB
Bash
Executable File
267 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
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# ctdb event script for Samba
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. $CTDB_BASE/functions
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detect_init_style
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case $CTDB_INIT_STYLE in
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suse)
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CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
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CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-nmb}
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CTDB_SERVICE_WINBIND=${CTDB_SERVICE_WINBIND:-winbind}
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;;
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debian)
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CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-samba}
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CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
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CTDB_SERVICE_WINBIND=${CTDB_SERVICE_WINBIND:-winbind}
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;;
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*)
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# should not happen, but for now use redhat style as default:
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CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb}
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CTDB_SERVICE_NMB=${CTDB_SERVICE_NMB:-""}
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CTDB_SERVICE_WINBIND=${CTDB_SERVICE_WINBIND:-winbind}
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;;
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esac
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service_name="samba"
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service_start="start_samba"
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service_stop="stop_samba"
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loadconfig
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[ "$CTDB_MANAGES_SAMBA" = "yes" ] || [ "$CTDB_MANAGES_WINBIND" = "yes" ] || exit 0
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start_samba() {
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# create the state directory for samba
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/bin/mkdir -p $CTDB_VARDIR/state/samba
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# make sure samba is not already started
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[ "$CTDB_MANAGES_SAMBA" = "yes" ] && {
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service "$CTDB_SERVICE_SMB" stop > /dev/null 2>&1
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service "$CTDB_SERVICE_NMB" stop > /dev/null 2>&1
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killall -0 -q smbd && {
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sleep 1
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# make absolutely sure samba is dead
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killall -q -9 smbd
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}
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killall -0 -q nmbd && {
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sleep 1
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# make absolutely sure samba is dead
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killall -q -9 nmbd
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}
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}
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# make sure winbind is not already started
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check_ctdb_manages_winbind
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[ "$CTDB_MANAGES_WINBIND" = "yes" ] && {
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service "$CTDB_SERVICE_WINBIND" stop > /dev/null 2>&1
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killall -0 -q winbindd && {
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sleep 1
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# make absolutely sure winbindd is dead
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killall -q -9 winbindd
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}
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}
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/usr/bin/net serverid wipe
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# start the winbind service
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[ "$CTDB_MANAGES_WINBIND" = "yes" ] && {
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service "$CTDB_SERVICE_WINBIND" start
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}
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# start Samba service. Start it reniced, as under very heavy load
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# the number of smbd processes will mean that it leaves few cycles for
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# anything else
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[ "$CTDB_MANAGES_SAMBA" = "yes" ] && {
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nice_service "$CTDB_SERVICE_NMB" start
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nice_service "$CTDB_SERVICE_SMB" start
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}
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}
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stop_samba() {
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# shutdown Samba when ctdb goes down
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[ "$CTDB_MANAGES_SAMBA" = "yes" ] && {
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service "$CTDB_SERVICE_SMB" stop
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service "$CTDB_SERVICE_NMB" stop
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}
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# stop the winbind service
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check_ctdb_manages_winbind
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[ "$CTDB_MANAGES_WINBIND" = "yes" ] && {
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service "$CTDB_SERVICE_WINBIND" stop
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}
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}
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# set default samba cleanup period - in minutes
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[ -z "$SAMBA_CLEANUP_PERIOD" ] && {
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SAMBA_CLEANUP_PERIOD=10
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}
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# we keep a cached copy of smb.conf here
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smbconf_cache="$CTDB_VARDIR/state/samba/smb.conf.cache"
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#############################################
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# update the smb.conf cache in the foreground
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testparm_foreground_update() {
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mkdir -p "$CTDB_VARDIR/state/samba" || exit 1
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testparm -s 2> /dev/null | egrep -v 'registry.shares.=|include.=' > "$smbconf_cache"
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}
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#############################################
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# update the smb.conf cache in the background
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testparm_background_update() {
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# if the cache doesn't exist, then update in the foreground
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[ -f $smbconf_cache ] || {
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testparm_foreground_update
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}
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# otherwise do a background update
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(
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tmpfile="${smbconf_cache}.$$"
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testparm -s > $tmpfile 2> /dev/null &
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# remember the pid of the teamparm process
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pid="$!"
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# give it 10 seconds to run
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timeleft=10
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while [ $timeleft -gt 0 ]; do
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timeleft=$(($timeleft - 1))
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# see if the process still exists
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/bin/kill -0 $pid > /dev/null 2>&1 || {
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# it doesn't exist, grab its exit status
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wait $pid
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[ $? = 0 ] || {
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echo "50.samba: smb.conf background update exited with status $?"
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rm -f "${tmpfile}"
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exit 1
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}
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# put the new smb.conf contents in the cache (atomic rename)
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# make sure we remove references to the registry while doing
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# this to ensure that running testparm on the cache does
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# not use the registry
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egrep -v 'registry.shares.=|include.=' < "$tmpfile" > "${tmpfile}.2"
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rm -f "$tmpfile"
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mv -f "${tmpfile}.2" "$smbconf_cache" || {
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echo "50.samba: failed to update background cache"
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rm -f "${tmpfile}.2"
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exit 1
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}
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exit 0
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}
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# keep waiting for testparm to finish
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sleep 1
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done
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# it took more than 10 seconds - kill it off
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rm -f "${tmpfile}"
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/bin/kill -9 "$pid" > /dev/null 2>&1
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echo "50.samba: timed out updating smbconf cache in background"
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exit 1
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) &
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}
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##################################################
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# show the testparm output using a cached smb.conf
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# to avoid registry access
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testparm_cat() {
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[ -f $smbconf_cache ] || {
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testparm_foreground_update
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}
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testparm -s "$smbconf_cache" "$@" 2>/dev/null
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}
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# function to see if ctdb manages winbind
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check_ctdb_manages_winbind() {
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[ -z "$CTDB_MANAGES_WINBIND" ] && {
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secmode=`testparm_cat --parameter-name=security`
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case $secmode in
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ADS|DOMAIN)
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CTDB_MANAGES_WINBIND="yes";
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;;
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*)
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CTDB_MANAGES_WINBIND="no";
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;;
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esac
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}
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}
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list_samba_shares ()
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{
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testparm_cat |
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sed -n -e 's@^[[:space:]]*path[[:space:]]*=[[:space:]]@@p' |
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sed -e 's/"//g'
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}
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###########################
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# periodic cleanup function
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periodic_cleanup() {
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# running smbstatus scrubs any dead entries from the connections
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# and sessionid database
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# echo "Running periodic cleanup of samba databases"
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smbstatus -np > /dev/null 2>&1 &
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}
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case "$1" in
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startup)
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ctdb_service_start
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;;
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shutdown)
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ctdb_service_stop
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;;
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monitor)
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# Create a dummy file to track when we need to do periodic cleanup
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# of samba databases
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[ -f $CTDB_VARDIR/state/samba/periodic_cleanup ] || {
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touch $CTDB_VARDIR/state/samba/periodic_cleanup
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}
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[ `/usr/bin/find $CTDB_VARDIR/state/samba/periodic_cleanup -mmin +$SAMBA_CLEANUP_PERIOD | wc -l` -eq 1 ] && {
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# Cleanup the databases
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periodic_cleanup
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touch $CTDB_VARDIR/state/samba/periodic_cleanup
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}
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[ "$CTDB_MANAGES_SAMBA" = "yes" ] && {
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[ "$CTDB_SAMBA_SKIP_SHARE_CHECK" = "yes" ] || {
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testparm_background_update
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testparm_cat | egrep '^WARNING|^ERROR|^Unknown' && {
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testparm_foreground_update
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testparm_cat | egrep '^WARNING|^ERROR|^Unknown' && {
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echo "ERROR: testparm shows smb.conf is not clean"
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exit 1
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}
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}
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list_samba_shares |
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ctdb_check_directories_probe || {
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testparm_foreground_update
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list_samba_shares |
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ctdb_check_directories
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} || exit $?
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}
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smb_ports="$CTDB_SAMBA_CHECK_PORTS"
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[ -z "$smb_ports" ] && {
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smb_ports=`testparm_cat --parameter-name="smb ports"`
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}
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ctdb_check_tcp_ports $smb_ports || exit $?
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}
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# check winbind is OK
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check_ctdb_manages_winbind
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[ "$CTDB_MANAGES_WINBIND" = "yes" ] && {
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ctdb_check_command "winbind" "wbinfo -p"
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}
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;;
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*)
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ctdb_standard_event_handler "$@"
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;;
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esac
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exit 0
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