Mount options is working

README.md

@@ -142,6 +142,14 @@ alive.
 
 Map rbd image and mount it
 
+Allowed mount options:
+ * ro
+ * noatime
+ * relatime
+ * nosuid
+ * noexec
+ * nodiratime
+
 #### Example
 
 Accept JSON

src/rbmd/sys.go

@@ -224,7 +224,8 @@ func (r RBDDevice) UnmapDevice() ([]byte, error) {
 
 //MountFS mount file system
 func (r RBDDevice) MountFS(device string) error {
-	err := syscall.Mount(device, r.Mountpoint, r.Fstype, 0, r.Mountopts)
+	err := syscall.Mount(device, r.Mountpoint, r.Fstype, ParseMountOpts(r.Mountopts), "")
+	log.Print("[DEBUG] RBDDevice: ", r)
 	if err != nil {
 		log.Print("[DEBUG] sys 207 ", err)
 		return err
@@ -233,6 +234,28 @@ func (r RBDDevice) MountFS(device string) error {
 	return nil
 }
 
+//ParseMountOpts parse RBDDevice.Mountopts. Return uintptr
+func ParseMountOpts(mountopts string) uintptr {
+	// Mount options map
+	opts := make(map[string]uintptr)
+	opts["ro"] = syscall.MS_RDONLY
+	opts["noatime"] = syscall.MS_NOATIME
+	opts["relatime"] = syscall.MS_RELATIME
+	opts["nosuid"] = syscall.MS_NOSUID
+	opts["noexec"] = syscall.MS_NOEXEC
+	opts["nodiratime"] = syscall.MS_NODIRATIME
+
+	var msOpts uintptr
+	if mountopts != "" {
+		for _, o := range strings.Split(mountopts, ",") {
+			msOpts = uintptr(msOpts|opts[o])
+		}
+		return msOpts
+	}
+
+	return  0
+}
+
 //UnmountFS unmount file system
 func (r RBDDevice) UnmountFS() error {
 	err := syscall.Unmount(r.Mountpoint, 0)

src/rbmd/version.go

@@ -8,6 +8,6 @@ import (
 
 //VersionShow show version and exit
 func VersionShow() {
-	fmt.Println("RBMD 0.0.3", runtime.Version(), runtime.GOARCH)
+	fmt.Println("RBMD 0.0.4", runtime.Version(), runtime.GOARCH)
 	os.Exit(1)
 }