hookscripts: Changes in hook scripts to make it work on all Linux/GNU distribution

Removed the hard coded values for smb.conf, smb logfile location and smbd.pid.
The current hook scripts also work for manully compiled (make, make install)
instance of gluster and Samba. But we have to manually copy the hook scripts
to respective locations.

Change-Id: I14056830fcd2ecb48b3c4df89265f4408c8de3e3
Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-on: http://review.gluster.org/5947
Reviewed-by: poornima g <pgurusid@redhat.com>
Reviewed-by: susant palai <spalai@redhat.com>
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
Tested-by: Raghavendra Talur <rtalur@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>

extras/hook-scripts/S30samba-start.sh

@@ -23,6 +23,9 @@
 PROGNAME="Ssamba-start"
 OPTSPEC="volname:"
 VOL=
+CONFIGFILE=
+LOGFILEBASE=
+PIDDIR=
 
 function parse_args () {
         ARGS=$(getopt -l $OPTSPEC  -name $PROGNAME $@)
@@ -43,22 +46,33 @@ function parse_args () {
         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 = $volname\n"
-        STRING+="glusterfs:logfile = /var/log/samba/glusterfs-$volname.log\n"
+        STRING+="glusterfs:logfile = $LOGFILEBASE/glusterfs-$volname.log\n"
         STRING+="glusterfs:loglevel = 7\n"
         STRING+="path = /\n"
         STRING+="read only = no\n"
         STRING+="guest ok = yes\n"
-        printf "$STRING"  >> /etc/samba/smb.conf
+        printf "$STRING"  >> ${CONFIGFILE}
 }
 
 function sighup_samba () {
-        pid=`cat /var/run/smbd.pid`
+        pid=`cat ${PIDDIR}/smbd.pid`
         if [ "$pid" != "" ]
         then
                 kill -HUP "$pid";
@@ -87,7 +101,10 @@ if [ $(get_smb "$VOL") = "disable" ]; then
         exit 0
 fi
 
-if ! grep --quiet "gluster-$VOL" /etc/samba/smb.conf ; then
+#Find smb.conf, smbd pid directory and smbd logfile path
+find_config_info
+
+if ! grep --quiet "gluster-$VOL" ${CONFIGFILE} ; then
         add_samba_share $VOL
         sighup_samba
 fi

extras/hook-scripts/S30samba-stop.sh

@@ -18,6 +18,8 @@
 PROGNAME="Ssamba-stop"
 OPTSPEC="volname:"
 VOL=
+CONFIGFILE=
+PIDDIR=
 
 function parse_args () {
         ARGS=$(getopt -l $OPTSPEC  -name $PROGNAME $@)
@@ -38,15 +40,25 @@ function parse_args () {
         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'}`
+}
+
 function del_samba_share () {
         volname=$1
-        cp /etc/samba/smb.conf /tmp/smb.conf
+        cp ${CONFIGFILE} /tmp/smb.conf
         sed -i "/gluster-$volname/,/^$/d" /tmp/smb.conf &&\
-                cp /tmp/smb.conf /etc/samba/smb.conf
+                cp /tmp/smb.conf ${CONFIGFILE}
 }
 
 function sighup_samba () {
-        pid=`cat /var/run/smbd.pid`
+        pid=`cat ${PIDDIR}/smbd.pid`
         if [ $pid != "" ]
         then
                 kill -HUP $pid;
@@ -56,5 +68,6 @@ function sighup_samba () {
 }
 
 parse_args $@
+find_config_info
 del_samba_share $VOL
 sighup_samba