2 * linux/fs/hfsplus/ioctl.c
5 * Ethan Benson <erbenson@alaska.net>
6 * partially derived from linux/fs/ext2/ioctl.c
7 * Copyright (C) 1993, 1994, 1995
8 * Remy Card (card@masi.ibp.fr)
9 * Laboratoire MASI - Institut Blaise Pascal
10 * Universite Pierre et Marie Curie (Paris VI)
16 #include <linux/sched.h>
17 #include <asm/uaccess.h>
18 #include "hfsplus_fs.h"
20 int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
26 case HFSPLUS_IOC_EXT2_GETFLAGS:
28 if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_IMMUTABLE)
29 flags |= EXT2_FLAG_IMMUTABLE; /* EXT2_IMMUTABLE_FL */
30 if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_APPEND)
31 flags |= EXT2_FLAG_APPEND; /* EXT2_APPEND_FL */
32 if (HFSPLUS_I(inode).userflags & HFSPLUS_FLG_NODUMP)
33 flags |= EXT2_FLAG_NODUMP; /* EXT2_NODUMP_FL */
34 return put_user(flags, (int __user *)arg);
35 case HFSPLUS_IOC_EXT2_SETFLAGS: {
36 if (IS_RDONLY(inode) ||
37 (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
40 if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
43 if (get_user(flags, (int __user *)arg))
46 if (flags & (EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND) ||
47 HFSPLUS_I(inode).rootflags & (HFSPLUS_FLG_IMMUTABLE|HFSPLUS_FLG_APPEND)) {
48 if (!capable(CAP_LINUX_IMMUTABLE))
52 /* don't silently ignore unsupported ext2 flags */
53 if (flags & ~(EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND|
57 if (flags & EXT2_FLAG_IMMUTABLE) { /* EXT2_IMMUTABLE_FL */
58 inode->i_flags |= S_IMMUTABLE;
59 HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_IMMUTABLE;
61 inode->i_flags &= ~S_IMMUTABLE;
62 HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
64 if (flags & EXT2_FLAG_APPEND) { /* EXT2_APPEND_FL */
65 inode->i_flags |= S_APPEND;
66 HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_APPEND;
68 inode->i_flags &= ~S_APPEND;
69 HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_APPEND;
71 if (flags & EXT2_FLAG_NODUMP) /* EXT2_NODUMP_FL */
72 HFSPLUS_I(inode).userflags |= HFSPLUS_FLG_NODUMP;
74 HFSPLUS_I(inode).userflags &= ~HFSPLUS_FLG_NODUMP;
76 inode->i_ctime = CURRENT_TIME;
77 mark_inode_dirty(inode);