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Diffstat (limited to 'ANDROID_3.4.5/fs/hfsplus/ioctl.c')
-rw-r--r--ANDROID_3.4.5/fs/hfsplus/ioctl.c260
1 files changed, 0 insertions, 260 deletions
diff --git a/ANDROID_3.4.5/fs/hfsplus/ioctl.c b/ANDROID_3.4.5/fs/hfsplus/ioctl.c
deleted file mode 100644
index 09addc86..00000000
--- a/ANDROID_3.4.5/fs/hfsplus/ioctl.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * linux/fs/hfsplus/ioctl.c
- *
- * Copyright (C) 2003
- * Ethan Benson <erbenson@alaska.net>
- * partially derived from linux/fs/ext2/ioctl.c
- * Copyright (C) 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * hfsplus ioctls
- */
-
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/mount.h>
-#include <linux/sched.h>
-#include <linux/xattr.h>
-#include <asm/uaccess.h>
-#include "hfsplus_fs.h"
-
-/*
- * "Blessing" an HFS+ filesystem writes metadata to the superblock informing
- * the platform firmware which file to boot from
- */
-static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct inode *inode = dentry->d_inode;
- struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
- struct hfsplus_vh *vh = sbi->s_vhdr;
- struct hfsplus_vh *bvh = sbi->s_backup_vhdr;
- u32 cnid = (unsigned long)dentry->d_fsdata;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- mutex_lock(&sbi->vh_mutex);
-
- /* Directory containing the bootable system */
- vh->finder_info[0] = bvh->finder_info[0] =
- cpu_to_be32(parent_ino(dentry));
-
- /*
- * Bootloader. Just using the inode here breaks in the case of
- * hard links - the firmware wants the ID of the hard link file,
- * but the inode points at the indirect inode
- */
- vh->finder_info[1] = bvh->finder_info[1] = cpu_to_be32(cnid);
-
- /* 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));
-
- mutex_unlock(&sbi->vh_mutex);
- return 0;
-}
-
-static int hfsplus_ioctl_getflags(struct file *file, int __user *user_flags)
-{
- struct inode *inode = file->f_path.dentry->d_inode;
- 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->f_path.dentry->d_inode;
- struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
- unsigned int flags;
- 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;
- }
-
- mutex_lock(&inode->i_mutex);
-
- 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)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
-
- if (flags & FS_APPEND_FL)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
-
- if (flags & FS_NODUMP_FL)
- hip->userflags |= HFSPLUS_FLG_NODUMP;
- else
- hip->userflags &= ~HFSPLUS_FLG_NODUMP;
-
- inode->i_ctime = CURRENT_TIME_SEC;
- mark_inode_dirty(inode);
-
-out_unlock_inode:
- mutex_unlock(&inode->i_mutex);
-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:
- return -ENOTTY;
- }
-}
-
-int hfsplus_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags)
-{
- struct inode *inode = dentry->d_inode;
- struct hfs_find_data fd;
- hfsplus_cat_entry entry;
- struct hfsplus_cat_file *file;
- int res;
-
- if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode))
- return -EOPNOTSUPP;
-
- res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &fd);
- if (res)
- return res;
- res = hfsplus_find_cat(inode->i_sb, inode->i_ino, &fd);
- if (res)
- goto out;
- hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
- sizeof(struct hfsplus_cat_file));
- file = &entry.file;
-
- if (!strcmp(name, "hfs.type")) {
- if (size == 4)
- memcpy(&file->user_info.fdType, value, 4);
- else
- res = -ERANGE;
- } else if (!strcmp(name, "hfs.creator")) {
- if (size == 4)
- memcpy(&file->user_info.fdCreator, value, 4);
- else
- res = -ERANGE;
- } else
- res = -EOPNOTSUPP;
- if (!res) {
- hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
- sizeof(struct hfsplus_cat_file));
- hfsplus_mark_inode_dirty(inode, HFSPLUS_I_CAT_DIRTY);
- }
-out:
- hfs_find_exit(&fd);
- return res;
-}
-
-ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
- void *value, size_t size)
-{
- struct inode *inode = dentry->d_inode;
- struct hfs_find_data fd;
- hfsplus_cat_entry entry;
- struct hfsplus_cat_file *file;
- ssize_t res = 0;
-
- if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode))
- return -EOPNOTSUPP;
-
- if (size) {
- res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &fd);
- if (res)
- return res;
- res = hfsplus_find_cat(inode->i_sb, inode->i_ino, &fd);
- if (res)
- goto out;
- hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
- sizeof(struct hfsplus_cat_file));
- }
- file = &entry.file;
-
- if (!strcmp(name, "hfs.type")) {
- if (size >= 4) {
- memcpy(value, &file->user_info.fdType, 4);
- res = 4;
- } else
- res = size ? -ERANGE : 4;
- } else if (!strcmp(name, "hfs.creator")) {
- if (size >= 4) {
- memcpy(value, &file->user_info.fdCreator, 4);
- res = 4;
- } else
- res = size ? -ERANGE : 4;
- } else
- res = -EOPNOTSUPP;
-out:
- if (size)
- hfs_find_exit(&fd);
- return res;
-}
-
-#define HFSPLUS_ATTRLIST_SIZE (sizeof("hfs.creator")+sizeof("hfs.type"))
-
-ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
-{
- struct inode *inode = dentry->d_inode;
-
- if (!S_ISREG(inode->i_mode) || HFSPLUS_IS_RSRC(inode))
- return -EOPNOTSUPP;
-
- if (!buffer || !size)
- return HFSPLUS_ATTRLIST_SIZE;
- if (size < HFSPLUS_ATTRLIST_SIZE)
- return -ERANGE;
- strcpy(buffer, "hfs.type");
- strcpy(buffer + sizeof("hfs.type"), "hfs.creator");
-
- return HFSPLUS_ATTRLIST_SIZE;
-}
generated by cgit (git 2.34.1) at 2025-01-24 10:42:35 +0000