VFS: snapper: Add SMB_VFS_FCHFLAGS implementation

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/modules/vfs_snapper.c b/source3/modules/vfs_snapper.c
index d475dff76636fce3621b37f0d61a8ae2e5bee68f..ba27a12367cd31896a9e7abac9d1c6acb1fe64c1 100644 (file)
--- a/source3/modules/vfs_snapper.c
+++ b/source3/modules/vfs_snapper.c
@@ -2408,6 +2408,23 @@ static int snapper_gmt_chflags(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
 }
 
+static int snapper_gmt_fchflags(vfs_handle_struct *handle,
+                               struct files_struct *fsp,
+                               unsigned int flags)
+{
+       time_t timestamp = 0;
+
+       if (!snapper_gmt_strip_snapshot(talloc_tos(), handle,
+                               fsp->fsp_name, &timestamp, NULL)) {
+               return -1;
+       }
+       if (timestamp != 0) {
+               errno = EROFS;
+               return -1;
+       }
+       return SMB_VFS_NEXT_FCHFLAGS(handle, fsp, flags);
+}
+
 static ssize_t snapper_gmt_getxattr(vfs_handle_struct *handle,
                                const struct smb_filename *smb_fname,
                                const char *aname,
@@ -2686,6 +2703,7 @@ static struct vfs_fn_pointers snapper_fns = {
        .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
        .fsetxattr_fn = snapper_gmt_fsetxattr,
        .chflags_fn = snapper_gmt_chflags,
+       .fchflags_fn = snapper_gmt_fchflags,
        .get_real_filename_fn = snapper_gmt_get_real_filename,
 };