1 files changed, 69 insertions, 6 deletions

diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index b4b8e201d428..b0ea6687ab55 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -20,30 +20,93 @@
  *   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, 
 		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
+	__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
-	cFYI(1,("ioctl file %p  cmd %u  arg %lu",filep,command,arg));
+	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 EXT2_IOC_GETFLAGS:
-			cFYI(1,("get flags not implemented yet"));
-			return -EOPNOTSUPP;
+			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 &
+						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;
+					break;
+				}
+				if (pSMBFile == NULL)
+					break;
+				/* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
+					extAttrBits, &ExtAttrMask);*/
+				
+			}
 			cFYI(1,("set flags not implemented yet"));
-			return -EOPNOTSUPP;
+			break;
+#endif /* CONFIG_CIFS_POSIX */
 		default:
 			cFYI(1,("unsupported ioctl"));
-			return rc;
+			break;
 	}
-#endif /* CONFIG_CIFS_POSIX */
+
+	FreeXid(xid);
 	return rc;
 }