From f32142f6f5ef42b1b70a2f2b207f6982b7f8c58f Mon Sep 17 00:00:00 2001
From: ningfd <fangdi.ning@seetatech.com>
Date: Mon, 6 Jun 2022 11:27:12 +0800
Subject: [PATCH] add disableXAttr in mount option

---
 weed/command/mount.go      |  2 ++
 weed/command/mount_std.go  |  3 ++-
 weed/mount/weedfs.go       |  1 +
 weed/mount/weedfs_xattr.go | 18 ++++++++++++++++++
 4 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/weed/command/mount.go b/weed/command/mount.go
index 2569bc3dc..0e32a53e8 100644
--- a/weed/command/mount.go
+++ b/weed/command/mount.go
@@ -30,6 +30,7 @@ type MountOptions struct {
 	debug              *bool
 	debugPort          *int
 	localSocket        *string
+	disableXAttr       *bool
 }
 
 var (
@@ -65,6 +66,7 @@ func init() {
 	mountOptions.debug = cmdMount.Flag.Bool("debug", false, "serves runtime profiling data, e.g., http://localhost:<debug.port>/debug/pprof/goroutine?debug=2")
 	mountOptions.debugPort = cmdMount.Flag.Int("debug.port", 6061, "http port for debugging")
 	mountOptions.localSocket = cmdMount.Flag.String("localSocket", "", "default to /tmp/seaweedfs-mount-<mount_dir_hash>.sock")
+	mountOptions.disableXAttr = cmdMount.Flag.Bool("disableXAttr", false, "disable xattr")
 
 	mountCpuProfile = cmdMount.Flag.String("cpuprofile", "", "cpu profile output file")
 	mountMemProfile = cmdMount.Flag.String("memprofile", "", "memory profile output file")
diff --git a/weed/command/mount_std.go b/weed/command/mount_std.go
index 1d929dc96..1aff3c5bb 100644
--- a/weed/command/mount_std.go
+++ b/weed/command/mount_std.go
@@ -175,7 +175,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		FsName:                   serverFriendlyName + ":" + filerMountRootPath,
 		Name:                     "seaweedfs",
 		SingleThreaded:           false,
-		DisableXAttrs:            false,
+		DisableXAttrs:            *option.disableXAttr,
 		Debug:                    *option.debug,
 		EnableLocks:              false,
 		ExplicitDataCacheControl: false,
@@ -238,6 +238,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		VolumeServerAccess: *mountOptions.volumeServerAccess,
 		Cipher:             cipher,
 		UidGidMapper:       uidGidMapper,
+		DisableXAttr:       *option.disableXAttr,
 	})
 
 	server, err := fuse.NewServer(seaweedFileSystem, dir, fuseMountOptions)
diff --git a/weed/mount/weedfs.go b/weed/mount/weedfs.go
index 6437499bf..584174202 100644
--- a/weed/mount/weedfs.go
+++ b/weed/mount/weedfs.go
@@ -40,6 +40,7 @@ type Option struct {
 	DataCenter         string
 	Umask              os.FileMode
 	Quota              int64
+	DisableXAttr       bool
 
 	MountUid         uint32
 	MountGid         uint32
diff --git a/weed/mount/weedfs_xattr.go b/weed/mount/weedfs_xattr.go
index 2fb2b0741..64cc0f6f0 100644
--- a/weed/mount/weedfs_xattr.go
+++ b/weed/mount/weedfs_xattr.go
@@ -20,6 +20,10 @@ const (
 // with the required buffer size.
 func (wfs *WFS) GetXAttr(cancel <-chan struct{}, header *fuse.InHeader, attr string, dest []byte) (size uint32, code fuse.Status) {
 
+	if wfs.option.DisableXAttr {
+		return 0, fuse.Status(syscall.ENOTSUP)
+	}
+
 	//validate attr name
 	if len(attr) > MAX_XATTR_NAME_SIZE {
 		if runtime.GOOS == "darwin" {
@@ -70,6 +74,10 @@ func (wfs *WFS) GetXAttr(cancel <-chan struct{}, header *fuse.InHeader, attr str
 //              attribute does not already exist.
 func (wfs *WFS) SetXAttr(cancel <-chan struct{}, input *fuse.SetXAttrIn, attr string, data []byte) fuse.Status {
 
+	if wfs.option.DisableXAttr {
+		return fuse.Status(syscall.ENOTSUP)
+	}
+
 	if wfs.IsOverQuota {
 		return fuse.Status(syscall.ENOSPC)
 	}
@@ -127,6 +135,11 @@ func (wfs *WFS) SetXAttr(cancel <-chan struct{}, input *fuse.SetXAttrIn, attr st
 // slice, and return the number of bytes. If the buffer is too
 // small, return ERANGE, with the required buffer size.
 func (wfs *WFS) ListXAttr(cancel <-chan struct{}, header *fuse.InHeader, dest []byte) (n uint32, code fuse.Status) {
+
+	if wfs.option.DisableXAttr {
+		return 0, fuse.Status(syscall.ENOTSUP)
+	}
+
 	_, _, entry, status := wfs.maybeReadEntry(header.NodeId)
 	if status != fuse.OK {
 		return 0, status
@@ -156,6 +169,11 @@ func (wfs *WFS) ListXAttr(cancel <-chan struct{}, header *fuse.InHeader, dest []
 
 // RemoveXAttr removes an extended attribute.
 func (wfs *WFS) RemoveXAttr(cancel <-chan struct{}, header *fuse.InHeader, attr string) fuse.Status {
+
+	if wfs.option.DisableXAttr {
+		return fuse.Status(syscall.ENOTSUP)
+	}
+
 	if len(attr) == 0 {
 		return fuse.EINVAL
 	}