1 files changed, 161 insertions, 0 deletions
diff --git a/extras/hook-scripts/set/post/S30samba-set.sh b/extras/hook-scripts/set/post/S30samba-set.sh
new file mode 100755
index 00000000000..854f131f6c8
--- /dev/null
+++ b/extras/hook-scripts/set/post/S30samba-set.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+
+#Need to be copied to hooks/<HOOKS_VER>/set/post/
+
+#TODO: All gluster and samba paths are assumed for fedora like systems.
+#Some efforts are required to make it work on other distros.
+
+#The preferred way of creating a smb share of a gluster volume has changed.
+#The old method was to create a fuse mount of the volume and share the mount
+#point through samba.
+#
+#New method eliminates the requirement of fuse mount and changes in fstab.
+#glusterfs_vfs plugin for samba makes call to libgfapi to access the volume.
+#
+#This hook script enables user to enable or disable smb share by volume set
+#option. Keys "user.cifs" and "user.smb" both are valid, but user.smb is
+#preferred.
+
+
+PROGNAME="Ssamba-set"
+OPTSPEC="volname:,gd-workdir:"
+VOL=
+CONFIGFILE=
+LOGFILEBASE=
+PIDDIR=
+GLUSTERD_WORKDIR=
+USERSMB_SET=""
+USERCIFS_SET=""
+
+function parse_args () {
+        ARGS=$(getopt -o 'o:' -l $OPTSPEC -n $PROGNAME -- "$@")
+        eval set -- "$ARGS"
+
+        while true; do
+            case $1 in
+                --volname)
+                    shift
+                    VOL=$1
+                    ;;
+                --gd-workdir)
+                    shift
+                    GLUSTERD_WORKDIR=$1
+                    ;;
+                --)
+                    shift
+                    break
+                    ;;
+                -o)
+                    shift
+                        read key value < <(echo "$1" | tr "=" " ")
+                        case "$key" in
+                            "user.cifs")
+                                USERCIFS_SET="YES"
+                                ;;
+                            "user.smb")
+                                USERSMB_SET="YES"
+                                ;;
+                            *)
+                                ;;
+                        esac
+                    ;;
+                *)
+                    shift
+                    break
+                    ;;
+            esac
+            shift
+        done
+}
+
+function find_config_info () {
+        cmdout=`smbd -b | grep smb.conf`
+        if [ $? -ne 0 ]; then
+                echo "Samba is not installed"
+                exit 1
+        fi
+        CONFIGFILE=`echo $cmdout | awk '{print $2}'`
+        PIDDIR=`smbd -b | grep PIDDIR | awk '{print $2}'`
+        LOGFILEBASE=`smbd -b | grep 'LOGFILEBASE' | awk '{print $2}'`
+}
+
+function add_samba_share () {
+        volname=$1
+        STRING="\n[gluster-$volname]\n"
+        STRING+="comment = For samba share of volume $volname\n"
+        STRING+="vfs objects = glusterfs\n"
+        STRING+="glusterfs:volume = $volname\n"
+        STRING+="glusterfs:logfile = $LOGFILEBASE/glusterfs-$volname.%%M.log\n"
+        STRING+="glusterfs:loglevel = 7\n"
+        STRING+="path = /\n"
+        STRING+="read only = no\n"
+        STRING+="kernel share modes = no\n"
+        printf "$STRING"  >> ${CONFIGFILE}
+}
+
+function sighup_samba () {
+        pid=`cat ${PIDDIR}/smbd.pid`
+        if [ "x$pid" != "x" ]
+        then
+                kill -HUP "$pid";
+        else
+                service smb condrestart
+        fi
+}
+
+function deactivate_samba_share () {
+        volname=$1
+        sed -i -e '/^\[gluster-'"$volname"'\]/{ :a' -e 'n; /available = no/H; /^$/!{$!ba;}; x; /./!{ s/^/available = no/; $!{G;x}; $H; }; s/.*//; x; };' ${CONFIGFILE}
+}
+
+function is_volume_started () {
+        volname=$1
+        echo "$(grep status $GLUSTERD_WORKDIR/vols/"$volname"/info |\
+                cut -d"=" -f2)"
+}
+
+function get_smb () {
+        volname=$1
+        uservalue=
+
+        usercifsvalue=$(grep user.cifs $GLUSTERD_WORKDIR/vols/"$volname"/info |\
+                        cut -d"=" -f2)
+        usersmbvalue=$(grep user.smb $GLUSTERD_WORKDIR/vols/"$volname"/info |\
+                       cut -d"=" -f2)
+
+        if [ -n "$usercifsvalue" ]; then
+                if [ "$usercifsvalue" = "disable" ] || [ "$usercifsvalue" = "off" ]; then
+                        uservalue="disable"
+                fi
+        fi
+
+        if [ -n "$usersmbvalue" ]; then
+                if [ "$usersmbvalue" = "disable" ] || [ "$usersmbvalue" = "off" ]; then
+                        uservalue="disable"
+                fi
+        fi
+
+        echo "$uservalue"
+}
+
+parse_args "$@"
+if [ "0" = "$(is_volume_started "$VOL")" ]; then
+    exit 0
+fi
+
+
+if [ "$USERCIFS_SET" = "YES" ] || [ "$USERSMB_SET" = "YES" ]; then
+    #Find smb.conf, smbd pid directory and smbd logfile path
+    find_config_info
+
+    if [ "$(get_smb "$VOL")" = "disable" ]; then
+        deactivate_samba_share $VOL
+    else
+        if ! grep --quiet "\[gluster-$VOL\]" ${CONFIGFILE} ; then
+            add_samba_share $VOL
+        else
+            sed -i '/\[gluster-'"$VOL"'\]/,/^$/!b;/available = no/d' ${CONFIGFILE}
+        fi
+    fi
+    sighup_samba
+fi