*
* 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
*/
#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"
-int cifs_ioctl (struct inode * inode, struct file * filep,
+#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;
-#endif /* CONFIG_CIFS_POSIX */
- int xid;
- struct cifs_sb_info *cifs_sb;
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);
- tcon = cifs_sb->tcon;
- if (pSMBFile == NULL)
- goto cifs_ioctl_out;
#ifdef CONFIG_CIFS_POSIX
- if(tcon)
+ tcon = cifs_sb->tcon;
+ if (tcon)
caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
else {
rc = -EIO;
- goto cifs_ioctl_out;
+ FreeXid(xid);
+ return -EIO;
}
+#endif /* CONFIG_CIFS_POSIX */
- cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg));
- switch(command) {
- case EXT2_IOC_GETFLAGS:
- if(CIFS_UNIX_EXTATTR_CAP & caps) {
+ 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)
+ if (rc == 0)
rc = put_user(ExtAttrBits &
- EXT2_FL_USER_VISIBLE,
+ FS_FL_USER_VISIBLE,
(int __user *)arg);
}
break;
- case EXT2_IOC_SETFLAGS:
- if(CIFS_UNIX_EXTATTR_CAP & caps) {
- if(get_user(ExtAttrBits,(int __user *)arg)) {
+ case FS_IOC_SETFLAGS:
+ if (CIFS_UNIX_EXTATTR_CAP & caps) {
+ if (get_user(ExtAttrBits, (int __user *)arg)) {
rc = -EFAULT;
- goto cifs_ioctl_out;
+ break;
}
- /* rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
+ if (pSMBFile == NULL)
+ break;
+ /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
extAttrBits, &ExtAttrMask);*/
-
}
- cFYI(1,("set flags not implemented yet"));
+ cFYI(1, ("set flags not implemented yet"));
break;
+#endif /* CONFIG_CIFS_POSIX */
default:
- cFYI(1,("unsupported ioctl"));
- return rc;
+ cFYI(1, ("unsupported ioctl"));
+ break;
}
-#endif /* CONFIG_CIFS_POSIX */
-cifs_ioctl_out:
FreeXid(xid);
return rc;
-}
+}