diff --git a/rgmanager/src/resources/nfsserver.sh b/rgmanager/src/resources/nfsserver.sh old mode 100755 new mode 100644 index 157e01af8..78625a6c8 --- a/rgmanager/src/resources/nfsserver.sh +++ b/rgmanager/src/resources/nfsserver.sh @@ -1,519 +1,555 @@ #!/bin/bash # # NFS Server Script. Handles starting/stopping Servand doing # the strange NFS stuff to get it to fail over properly. # LC_ALL=C LANG=C PATH=/bin:/sbin:/usr/bin:/usr/sbin V4RECOVERY="/var/lib/nfs/v4recovery" PROC_V4RECOVERY="/proc/fs/nfsd/nfsv4recoverydir" export LC_ALL LANG PATH . $(dirname $0)/ocf-shellfuncs # SELinux information which restorecon &> /dev/null && selinuxenabled export SELINUX_ENABLED=$? if [ $SELINUX_ENABLED ]; then export SELINUX_LABEL="$(ls -ldZ /var/lib/nfs/statd | cut -f4 -d' ')" fi log_do() { ocf_log debug $* $* &> /dev/null ret=$? if [ $ret -ne 0 ]; then ocf_log debug "Failed: $*" fi return $ret } meta_data() { cat < 1.0 This defines an NFS server resource. The NFS server resource is useful for exporting NFSv4 file systems to clients. Because of the way NFSv4 works, only one NFSv4 resource may exist on a server at a time. Additionally, it is not possible to use the nfsserver resource when also using local instances of NFS on each cluster node. This defines an NFS server resource. Descriptive name for this server. Generally, only one server is ever defined per service. Name This is the path you intend to export. Usually, this is left blank, and the mountpoint of the parent file system is used. This path is passed to nfsclient resources as the export path when exportfs is called. This is the path you intend to export. This is the path containing shared NFS information which is used for NFS recovery after a failover. This is relative to the export path, and defaults to ".clumanager/nfs". This is the path containing shared NFS recovery information, relative to the path parameter. + + + Specifies the port number used for RPC listener sockets. If + this option is not specified, rpc.statd chooses a random + ephemeral port for each listener socket. This option can be + used to fix the port value of its listeners when SM_NOTIFY + requests must traverse a firewall between + clients and servers. + + + This is the port where rpc.statd should listen on. + + + + EOT } verify_path() { if [ -z "$OCF_RESKEY_path" ]; then ocf_log err "No server path specified." return $OCF_ERR_ARGS fi [ -d "$OCF_RESKEY_path" ] && return 0 ocf_log err "$OCF_RESKEY_path is not a directory" return $OCF_ERR_ARGS } verify_nfspath() { if [ -z "$OCF_RESKEY_nfspath" ]; then echo No NFS data path specified. return 1 fi [ -d "$OCF_RESKEY_path" ] && return 0 # xxx do nothing for now. return 0 } +verify_statdport() +{ + if [ -z "$OCF_RESKEY_statdport" ]; then + # this is fine, statdport is optional + return 0 + fi + + [ $OCF_RESKEY_statdport -gt 0 && $OCF_RESKEY_statdport -le 65535 ] && return 0 + + ocf_log err "$OCF_RESKEY_statdport is not a valid port number" + + return $OCF_ERR_ARGS +} + + verify_all() { verify_path || return 1 verify_nfspath || return 1 + verify_statdport || return 1 return 0 } nfs_daemons() { declare oper declare val case $1 in start) ocf_log info "Starting NFS daemons" /etc/init.d/nfs start if [ $? -ne 0 ]; then ocf_log err "Failed to start NFS daemons" return 1 fi ocf_log debug "NFS daemons are running" return 0 ;; stop) ocf_log info "Stopping NFS daemons" if ! /etc/init.d/nfs stop; then ocf_log err "Failed to stop NFS daemons" return 1 fi ocf_log debug "NFS daemons are stopped" return 0 ;; status|monitor) declare recoverydir="$OCF_RESKEY_path/$OCF_RESKEY_nfspath/v4recovery" val=$(cat $PROC_V4RECOVERY) [ "$val" = "$recoverydir" ] || ocf_log warning \ "NFSv4 recovery directory is $val instead of $recoverydir" /etc/init.d/nfs status if [ $? -eq 0 ]; then ocf_log debug "NFS daemons are running" return 0 fi return $OCF_NOT_RUNNING ;; esac } create_tree() { declare fp="$OCF_RESKEY_path/$OCF_RESKEY_nfspath" [ -d "$fp" ] || mkdir -p "$fp" [ -d "$fp/statd" ] || mkdir -p "$fp/statd" [ -d "$fp/v4recovery" ] || mkdir -p "$fp/v4recovery" # # Create our own private copy which we use for notifies. # This way, we can be sure to advertise on possibly multiple # IP addresses. # [ -d "$fp/statd/sm" ] || mkdir -p "$fp/statd/sm" [ -d "$fp/statd/sm.bak" ] || mkdir -p "$fp/statd/sm.bak" [ -d "$fp/statd/sm-ha" ] || mkdir -p "$fp/statd/sm-ha" [ -n "`id -u rpcuser`" -a "`id -g rpcuser`" ] && chown -R rpcuser.rpcuser "$fp/statd" # Create if they don't exist [ -f "$fp/etab" ] || touch "$fp/etab" [ -f "$fp/xtab" ] || touch "$fp/xtab" [ -f "$fp/rmtab" ] || touch "$fp/rmtab" [ $SELINUX_ENABLED ] && chcon -R "$SELINUX_LABEL" "$fp" # # Generate a random state file. If this ends up being what a client # already has in its list, that's bad, but the chances of this # are small - and relocations should be rare. # dd if=/dev/urandom of=$fp/state bs=1 count=4 &> /dev/null [ -n "`id -u rpcuser`" -a "`id -g rpcuser`" ] && chown rpcuser.rpcuser "$fp/state" } setup_v4recovery() { declare recoverydir="$OCF_RESKEY_path/$OCF_RESKEY_nfspath/v4recovery" # mounts /proc/fs/nfsd for us lsmod | grep -q nfsd if [ $? -ne 0 ]; then modprobe nfsd fi val=$(cat "$PROC_V4RECOVERY") # Ensure start-after-start works if [ "$val" = "$recoverydir" ]; then return 0 fi # # If the value is not default, there may be another # cluster service here already which has replaced # the v4 recovery directory. In that case, # we must refuse to go any further. # if [ "$val" != "$V4RECOVERY" ]; then ocf_log err "NFSv4 recovery directory has an unexpected value: $val" return 1 fi # # Redirect nfs v4 recovery dir to shared storage # echo "$recoverydir" > "$PROC_V4RECOVERY" if [ $? -ne 0 ]; then echo "Uh oh... echo failed!?" fi val="$(cat $PROC_V4RECOVERY)" if [ "$val" != "$recoverydir" ]; then ocf_log err "Failed to change NFSv4 recovery path" ocf_log err "Wanted: $recoverydir; got $val" return 1 fi return 0 } cleanup_v4recovery() { # # Restore nfsv4 recovery directory to default # echo "$V4RECOVERY" > "$PROC_V4RECOVERY" return $? } is_bound() { mount | grep -q "$1 on $2 type none (.*bind.*)" return $? } setup_tree() { declare fp="$OCF_RESKEY_path/$OCF_RESKEY_nfspath" if is_bound $fp/statd /var/lib/nfs/statd; then ocf_log debug "$fp is already bound to /var/lib/nfs/statd" return 0 fi mount -o bind "$fp/statd" /var/lib/nfs/statd cp -a "$fp"/*tab /var/lib/nfs [ $SELINUX_ENABLED ] && restorecon /var/lib/nfs } cleanup_tree() { declare fp="$OCF_RESKEY_path/$OCF_RESKEY_nfspath" if is_bound "$fp/statd" /var/lib/nfs/statd; then log_do umount /var/lib/nfs/statd || return 1 else ocf_log debug "$fp is not bound to /var/lib/nfs/statd" fi cp -a /var/lib/nfs/*tab "$fp" return 0 } start_locking() { declare ret + declare statdport="" [ -x /sbin/rpc.statd ] || return 1 # # Synchronize these before starting statd # cp -f /var/lib/nfs/statd/sm-ha/* /var/lib/nfs/statd/sm 2> /dev/null cp -f /var/lib/nfs/statd/sm/* /var/lib/nfs/statd/sm-ha 2> /dev/null if pidof rpc.statd &> /dev/null; then ocf_log debug "rpc.statd is already running" return 0 fi + if [ -n "$OCF_RESKEY_statdport" ]; then + statdport="-p $OCF_RESKEY_statdport" + fi + # # Set this resrouce script as the callout program. We are evil. # In cases where we want to preserve lock information, this is needed # because we can't do the "copy" that we do on the down-state... # ocf_log info "Starting rpc.statd" rm -f /var/run/sm-notify.pid - rpc.statd -H $0 -d + rpc.statd -H $0 -d $statdport ret=$? if [ $ret -ne 0 ]; then ocf_log err "Failed to start rpc.statd" return $ret fi touch /var/lock/subsys/nfslock return $ret } terminate() { declare pids declare i=0 while : ; do pids=$(pidof $1) [ -z "$pids" ] && return 0 kill $pids sleep 1 ((i++)) [ $i -gt 3 ] && return 1 done } killkill() { declare pids declare i=0 while : ; do pids=$(pidof $1) [ -z "$pids" ] && return 0 kill -9 $pids sleep 1 ((i++)) [ $i -gt 3 ] && return 1 done } stop_process() { declare process=$1 ocf_log info "Stopping $process" if terminate $process; then ocf_log debug "$process is stopped" else if killkill $process; then ocf_log debug "$process is stopped" else ocf_log debug "Failed to stop $process" return 1 fi fi return 0 } stop_locking() { ret=0 # sm-notify can prevent umount of /var/lib/nfs/statd if # it is still trying to notify unresponsive clients. stop_process sm-notify if [ $? -ne 0]; then ret=1 fi stop_process rpc.statd if [ $? -ne 0]; then ret=1 fi return $ret } case $1 in start) # Check for and source configuration file ocf_log info "Starting NFS Server $OCF_RESKEY_name" create_tree || exit 1 setup_tree || exit 1 setup_v4recovery || exit 1 start_locking nfs_daemons start rv=$? if [ $rv -eq 0 ]; then ocf_log info "Started NFS Server $OCF_RESKEY_name" exit 0 fi ocf_log err "Failed to start NFS Server $OCF_RESKEY_name" exit $rv ;; status|monitor) nfs_daemons status exit $? ;; stop) if ! nfs_daemons stop; then ocf_log err "Failed to stop NFS Server $OCF_RESKEY_name" exit $OCF_ERR_GENERIC fi # Copy the current notify list into our private area ocf_log debug "Copying sm files for future notification..." rm -f /var/lib/nfs/statd/sm-ha/* &> /dev/null cp -f /var/lib/nfs/statd/sm/* /var/lib/nfs/statd/sm-ha &> /dev/null stop_locking || exit 1 cleanup_v4recovery cleanup_tree || exit 1 exit 0 ;; add-client) ocf_log debug "$0 $1 $2 $3" touch /var/lib/nfs/statd/sm/$2 touch /var/lib/nfs/statd/sm-ha/$2 exit 0 ;; del-client) ocf_log debug "$0 $1 $2 $3" touch /var/lib/nfs/statd/sm/$2 rm -f /var/lib/nfs/statd/sm-ha/$2 exit 0 ;; recover|restart) $0 stop || exit $OCF_ERR_GENERIC $0 start || exit $OCF_ERR_GENERIC exit 0 ;; meta-data) meta_data exit 0 ;; validate-all) verify_all exit $? ;; *) echo "usage: $0 {start|stop|status|monitor|restart|recover|add-client|del-client|meta-data|validate-all}" exit $OCF_ERR_UNIMPLEMENTED ;; esac exit 0