regression: cifs endianness bug

[powerpc.git] / fs / cifs / ioctl.c

diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index b4b8e20..d24fe68 100644 (file)
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -3,7 +3,7 @@
  *
  *   vfs operations that deal with io control
  *
- *   Copyright (C) International Business Machines  Corp., 2005
+ *   Copyright (C) International Business Machines  Corp., 2005,2007
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -20,30 +20,91 @@
  *   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"
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifs_debug.h"
+#include "cifsfs.h"
+
+#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
 
-int cifs_ioctl (struct inode * inode, struct file * filep, 
+int cifs_ioctl (struct inode *inode, struct file *filep,
                unsigned int command, unsigned long arg)
 {
        int rc = -ENOTTY; /* strange error - but the precedent */
+       int xid;
+       struct cifs_sb_info *cifs_sb;
 #ifdef CONFIG_CIFS_POSIX
-       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;
-               case EXT2_IOC_SETFLAGS:
-                       cFYI(1,("set flags not implemented yet"));
-                       return -EOPNOTSUPP;
-               default:
-                       cFYI(1,("unsupported ioctl"));
-                       return rc;
+       __u64   ExtAttrBits = 0;
+       __u64   ExtAttrMask = 0;
+       __u64   caps;
+       struct cifsTconInfo *tcon;
+       struct cifsFileInfo *pSMBFile =
+               (struct cifsFileInfo *)filep->private_data;
+#endif /* CONFIG_CIFS_POSIX */
+
+       xid = GetXid();
+
+       cFYI(1, ("ioctl file %p  cmd %u  arg %lu", filep, command, arg));
+
+       cifs_sb = CIFS_SB(inode->i_sb);
+
+#ifdef CONFIG_CIFS_POSIX
+       tcon = cifs_sb->tcon;
+       if (tcon)
+               caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+       else {
+               rc = -EIO;
+               FreeXid(xid);
+               return -EIO;
        }
 #endif /* CONFIG_CIFS_POSIX */
+
+       switch (command) {
+               case CIFS_IOC_CHECKUMOUNT:
+                       cFYI(1, ("User unmount attempted"));
+                       if (cifs_sb->mnt_uid == current->uid)
+                               rc = 0;
+                       else {
+                               rc = -EACCES;
+                               cFYI(1, ("uids do not match"));
+                       }
+                       break;
+#ifdef CONFIG_CIFS_POSIX
+               case FS_IOC_GETFLAGS:
+                       if (CIFS_UNIX_EXTATTR_CAP & caps) {
+                               if (pSMBFile == NULL)
+                                       break;
+                               rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
+                                       &ExtAttrBits, &ExtAttrMask);
+                               if (rc == 0)
+                                       rc = put_user(ExtAttrBits &
+                                               FS_FL_USER_VISIBLE,
+                                               (int __user *)arg);
+                       }
+                       break;
+
+               case FS_IOC_SETFLAGS:
+                       if (CIFS_UNIX_EXTATTR_CAP & caps) {
+                               if (get_user(ExtAttrBits, (int __user *)arg)) {
+                                       rc = -EFAULT;
+                                       break;
+                               }
+                               if (pSMBFile == NULL)
+                                       break;
+                               /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
+                                       extAttrBits, &ExtAttrMask);*/
+                       }
+                       cFYI(1, ("set flags not implemented yet"));
+                       break;
+#endif /* CONFIG_CIFS_POSIX */
+               default:
+                       cFYI(1, ("unsupported ioctl"));
+                       break;
+       }
+
+       FreeXid(xid);
        return rc;
-} 
+}