hooks: Modified samba hook scripts to handle user.cifs

Change-Id: I079636e2be4bc097df33355b6a60c0e04d69ef57
BUG: 877992
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/1856
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 127 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 100644
index 00000000000..bec3ac270b3
--- /dev/null
+++ b/extras/hook-scripts/set/post/S30samba-set.sh
@@ -0,0 +1,127 @@
+#!/bin/bash
+
+PROGNAME="Ssamba-set"
+OPTSPEC="volname:"
+VOL=
+MNT_PRE="/mnt/samba"
+
+enable_cifs=""
+
+function parse_args () {
+        ARGS=$(getopt -l $OPTSPEC  -o "o" -name $PROGNAME $@)
+        eval set -- "$ARGS"
+
+        while true; do
+            case $1 in
+            --volname)
+                shift
+                VOL=$1
+                ;;
+            *)
+                shift
+                for pair in $@; do
+                        read key value < <(echo "$pair" | tr "=" " ")
+                        case "$key" in
+                            "user.cifs")    enable_cifs=$value;;
+                            *) ;;
+                        esac
+                done
+
+                shift
+                break
+                ;;
+            esac
+            shift
+        done
+}
+
+function add_samba_export () {
+        volname=$1
+        mnt_pre=$2
+        mkdir -p $mnt_pre/$volname && \
+        printf "\n[gluster-$volname]\ncomment=For samba export of volume $volname\npath=$mnt_pre/$volname\nread only=no\nguest ok=yes\n" >> /etc/samba/smb.conf
+}
+
+function sighup_samba () {
+        pid=`cat /var/run/smbd.pid`
+        if [ "$pid" != "" ]
+        then
+                kill -HUP "$pid";
+        else
+                /etc/init.d/smb start
+        fi
+}
+
+function add_fstab_entry () {
+        volname=$1
+        mntpt=$2
+        mntent="`hostname`:/$volname $mntpt glusterfs defaults,transport=tcp 0 0"
+        exists=`grep "$mntent" /etc/fstab`
+        if [ "$exists" == "" ]
+        then
+            echo "$mntent" >> /etc/fstab
+        fi
+}
+
+function del_samba_export () {
+        volname=$1
+        cp /etc/samba/smb.conf /tmp/smb.conf
+        sed -i "/gluster-$volname/,/^$/d" /tmp/smb.conf &&\
+                mv /tmp/smb.conf /etc/samba/smb.conf
+}
+
+function umount_volume () {
+        volname=$1
+        mnt_pre=$2
+        umount -l $mnt_pre/$volname
+}
+
+function remove_fstab_entry () {
+	volname=$1
+	mntpt=$2
+	mntent="`hostname`:/$volname $mntpt glusterfs defaults,transport=tcp 0 0"
+	esc_mntent=$(echo -e "$mntent" | sed 's/\//\\\//g')
+	exists=`grep "$mntent" /etc/fstab`
+	if [ "$exists" != " " ]
+	then
+		sed -i /"$esc_mntent"/d /etc/fstab
+	fi
+}
+
+function is_volume_started () {
+        volname=$1
+        echo "$(grep status /var/lib/glusterd/vols/"$volname"/info | cut -d"=" -f2)"
+}
+
+function get_cifs () {
+        volname=$1
+        echo "$(grep user.cifs /var/lib/glusterd/vols/"$volname"/info | cut -d"=" -f2)"
+}
+
+function mount_volume () {
+	volname=$1
+	mntpt=$2
+	if [ "$(cat /proc/mounts | grep "$mntpt")" == "" ]; then
+		mount -t glusterfs `hostname`:$volname $mntpt && \
+				add_fstab_entry $volname $mntpt
+	fi
+}
+
+parse_args $@
+if [ "0" = $(is_volume_started "$VOL") ]; then
+    exit 0
+fi
+
+if [ "$enable_cifs" = "enable" ]; then
+    add_samba_export $VOL $MNT_PRE
+    mkdir -p $MNT_PRE/$VOL
+    sleep 5
+    mount_volume $VOL $MNT_PRE/$VOL
+    sighup_samba
+
+elif [ "$enable_cifs" = "disable" ]; then
+    del_samba_export $VOL
+    umount_volume $VOL $MNT_PRE
+    remove_fstab_entry $VOL $MNT_PRE/$VOL
+    sighup_samba
+fi