[PATCH] cifs: add support for chattr/lsattr in new CIFS POSIX extensions

[linux-2.6] / fs / cifs / ioctl.c

diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index b4b8e201d428de1b271e090c50f39cfb8d7ea568..7b84b2bb8c4a85e8e50247ee3a514c6baad8dd7d 100644 (file)
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -20,6 +20,7 @@
  *   along with this library; if not, write to the Free Software
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
+
 #include <linux/fs.h>
 #include <linux/ext2_fs.h>
 #include "cifspdu.h"
@@ -32,18 +33,63 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
 {
        int rc = -ENOTTY; /* strange error - but the precedent */
 #ifdef CONFIG_CIFS_POSIX
+       __u64   ExtAttrBits = 0;
+       __u64   ExtAttrMask = 0;
+       __u64   caps;
+#endif /* CONFIG_CIFS_POSIX */
+       int xid;
+       struct cifs_sb_info *cifs_sb;
+       struct cifsTconInfo *tcon;
+       struct cifsFileInfo *pSMBFile =
+               (struct cifsFileInfo *)filep->private_data;
+
+       xid = GetXid();
+
+       cifs_sb = CIFS_SB(inode->i_sb);
+       tcon = cifs_sb->tcon;
+       if (pSMBFile == NULL)
+               goto cifs_ioctl_out;
+
+#ifdef CONFIG_CIFS_POSIX
+       if(tcon)
+               caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+       else {
+               rc = -EIO;
+               goto cifs_ioctl_out;
+       }
+
        cFYI(1,("ioctl file %p  cmd %u  arg %lu",filep,command,arg));
        switch(command) {
                case EXT2_IOC_GETFLAGS:
-                       cFYI(1,("get flags not implemented yet"));
-                       return -EOPNOTSUPP;
+                       if(CIFS_UNIX_EXTATTR_CAP & caps) {
+                               rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
+                                       &ExtAttrBits, &ExtAttrMask);
+                               if(rc == 0)
+                                       rc = put_user(ExtAttrBits &
+                                               EXT2_FL_USER_VISIBLE,
+                                               (int __user *)arg);
+                       }
+                       break;
+
                case EXT2_IOC_SETFLAGS:
+                       if(CIFS_UNIX_EXTATTR_CAP & caps) {
+                               if(get_user(ExtAttrBits,(int __user *)arg)) {
+                                       rc = -EFAULT;
+                                       goto cifs_ioctl_out;
+                               }
+                         /* rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
+                                       extAttrBits, &ExtAttrMask);*/
+                               
+                       }
                        cFYI(1,("set flags not implemented yet"));
-                       return -EOPNOTSUPP;
+                       break;
                default:
                        cFYI(1,("unsupported ioctl"));
                        return rc;
        }
 #endif /* CONFIG_CIFS_POSIX */
+
+cifs_ioctl_out:
+       FreeXid(xid);
        return rc;
 }