patch-2.6.6-vs1.9.0

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

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 9737a0f..f84ba41 100644 (file)
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -9,10 +9,18 @@
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/security.h>
+#include <linux/proc_fs.h>
+#include <linux/vserver/inode.h>
+#include <linux/vserver/xid.h>
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
 
+#ifdef CONFIG_VSERVER_LEGACY           
+extern int vx_proc_ioctl(struct inode *, struct file *,
+       unsigned int, unsigned long);
+#endif
+
 static int file_ioctl(struct file *filp,unsigned int cmd,unsigned long arg)
 {
        int error;
@@ -119,6 +127,48 @@ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
                        else
                                error = -ENOTTY;
                        break;
+#ifdef CONFIG_VSERVER_LEGACY           
+#ifndef CONFIG_INOXID_NONE
+               case FIOC_GETXID: {
+                       struct inode *inode = filp->f_dentry->d_inode;
+
+                       /* fixme: if stealth, return -ENOTTY */
+                       error = -EPERM;
+                       if (capable(CAP_CONTEXT))
+                               error = put_user(inode->i_xid, (int *) arg);
+                       break;
+               }
+               case FIOC_SETXID: {
+                       struct inode *inode = filp->f_dentry->d_inode;
+                       int xid;
+
+                       /* fixme: if stealth, return -ENOTTY */
+                       error = -EPERM;
+                       if (!capable(CAP_CONTEXT))
+                               break;
+                       error = -EROFS;
+                       if (IS_RDONLY(inode))
+                               break;
+                       error = -ENOSYS;
+                       if (!(inode->i_sb->s_flags & MS_TAGXID))
+                               break;
+                       error = -EFAULT;
+                       if (get_user(xid, (int *) arg))
+                               break;
+                       error = 0;
+                       inode->i_xid = (xid & 0xFFFF);
+                       inode->i_ctime = CURRENT_TIME;
+                       mark_inode_dirty(inode);
+                       break;  
+               }
+#endif
+               case FIOC_GETXFLG:
+               case FIOC_SETXFLG:
+                       error = -ENOTTY;
+                       if (filp->f_dentry->d_inode->i_sb->s_magic == PROC_SUPER_MAGIC)
+                               error = vx_proc_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
+                       break;
+#endif
                default:
                        error = -ENOTTY;
                        if (S_ISREG(filp->f_dentry->d_inode->i_mode))