diff options
Diffstat (limited to 'fs/hfsplus/ioctl.c')
| -rw-r--r-- | fs/hfsplus/ioctl.c | 86 |
1 files changed, 3 insertions, 83 deletions
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c index 0a156d84e67d..40d04dba13ac 100644 --- a/fs/hfsplus/ioctl.c +++ b/fs/hfsplus/ioctl.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/fs/hfsplus/ioctl.c * @@ -39,7 +40,7 @@ static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags) /* Directory containing the bootable system */ vh->finder_info[0] = bvh->finder_info[0] = - cpu_to_be32(parent_ino(dentry)); + cpu_to_be32(d_parent_ino(dentry)); /* * Bootloader. Just using the inode here breaks in the case of @@ -50,98 +51,17 @@ static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags) /* Per spec, the OS X system folder - same as finder_info[0] here */ vh->finder_info[5] = bvh->finder_info[5] = - cpu_to_be32(parent_ino(dentry)); + cpu_to_be32(d_parent_ino(dentry)); mutex_unlock(&sbi->vh_mutex); return 0; } -static int hfsplus_ioctl_getflags(struct file *file, int __user *user_flags) -{ - struct inode *inode = file_inode(file); - struct hfsplus_inode_info *hip = HFSPLUS_I(inode); - unsigned int flags = 0; - - if (inode->i_flags & S_IMMUTABLE) - flags |= FS_IMMUTABLE_FL; - if (inode->i_flags & S_APPEND) - flags |= FS_APPEND_FL; - if (hip->userflags & HFSPLUS_FLG_NODUMP) - flags |= FS_NODUMP_FL; - - return put_user(flags, user_flags); -} - -static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags) -{ - struct inode *inode = file_inode(file); - struct hfsplus_inode_info *hip = HFSPLUS_I(inode); - unsigned int flags, new_fl = 0; - int err = 0; - - err = mnt_want_write_file(file); - if (err) - goto out; - - if (!inode_owner_or_capable(inode)) { - err = -EACCES; - goto out_drop_write; - } - - if (get_user(flags, user_flags)) { - err = -EFAULT; - goto out_drop_write; - } - - inode_lock(inode); - - if ((flags & (FS_IMMUTABLE_FL|FS_APPEND_FL)) || - inode->i_flags & (S_IMMUTABLE|S_APPEND)) { - if (!capable(CAP_LINUX_IMMUTABLE)) { - err = -EPERM; - goto out_unlock_inode; - } - } - - /* don't silently ignore unsupported ext2 flags */ - if (flags & ~(FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NODUMP_FL)) { - err = -EOPNOTSUPP; - goto out_unlock_inode; - } - - if (flags & FS_IMMUTABLE_FL) - new_fl |= S_IMMUTABLE; - - if (flags & FS_APPEND_FL) - new_fl |= S_APPEND; - - inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND); - - if (flags & FS_NODUMP_FL) - hip->userflags |= HFSPLUS_FLG_NODUMP; - else - hip->userflags &= ~HFSPLUS_FLG_NODUMP; - - inode->i_ctime = current_time(inode); - mark_inode_dirty(inode); - -out_unlock_inode: - inode_unlock(inode); -out_drop_write: - mnt_drop_write_file(file); -out: - return err; -} - long hfsplus_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { void __user *argp = (void __user *)arg; switch (cmd) { - case HFSPLUS_IOC_EXT2_GETFLAGS: - return hfsplus_ioctl_getflags(file, argp); - case HFSPLUS_IOC_EXT2_SETFLAGS: - return hfsplus_ioctl_setflags(file, argp); case HFSPLUS_IOC_BLESS: return hfsplus_ioctl_bless(file, argp); default: |
