[net-next-2.6.git] / fs / hfsplus / catalog.c

/*
 *  linux/fs/hfsplus/catalog.c
 *
 * Copyright (C) 2001
 * Brad Boyer (flar@allandria.com)
 * (C) 2003 Ardis Technologies <roman@ardistech.com>
 *
 * Handling of catalog records
 */


#include "hfsplus_fs.h"
#include "hfsplus_raw.h"

int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
			     const hfsplus_btree_key *k2)
{
	__be32 k1p, k2p;

	k1p = k1->cat.parent;
	k2p = k2->cat.parent;
	if (k1p != k2p)
		return be32_to_cpu(k1p) < be32_to_cpu(k2p) ? -1 : 1;

	return hfsplus_strcasecmp(&k1->cat.name, &k2->cat.name);
}

int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
			    const hfsplus_btree_key *k2)
{
	__be32 k1p, k2p;

	k1p = k1->cat.parent;
	k2p = k2->cat.parent;
	if (k1p != k2p)
		return be32_to_cpu(k1p) < be32_to_cpu(k2p) ? -1 : 1;

	return hfsplus_strcmp(&k1->cat.name, &k2->cat.name);
}

void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
			   u32 parent, struct qstr *str)
{
	int len;

	key->cat.parent = cpu_to_be32(parent);
	if (str) {
		hfsplus_asc2uni(sb, &key->cat.name, str->name, str->len);
		len = be16_to_cpu(key->cat.name.length);
	} else {
		key->cat.name.length = 0;
		len = 0;
	}
	key->key_len = cpu_to_be16(6 + 2 * len);
}

static void hfsplus_cat_build_key_uni(hfsplus_btree_key *key, u32 parent,
				      struct hfsplus_unistr *name)
{
	int ustrlen;

	ustrlen = be16_to_cpu(name->length);
	key->cat.parent = cpu_to_be32(parent);
	key->cat.name.length = cpu_to_be16(ustrlen);
	ustrlen *= 2;
	memcpy(key->cat.name.unicode, name->unicode, ustrlen);
	key->key_len = cpu_to_be16(6 + ustrlen);
}

static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
{
	if (inode->i_flags & S_IMMUTABLE)
		perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
	else
		perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
	if (inode->i_flags & S_APPEND)
		perms->rootflags |= HFSPLUS_FLG_APPEND;
	else
		perms->rootflags &= ~HFSPLUS_FLG_APPEND;
	HFSPLUS_I(inode).rootflags = perms->rootflags;
	HFSPLUS_I(inode).userflags = perms->userflags;
	perms->mode = cpu_to_be16(inode->i_mode);
	perms->owner = cpu_to_be32(inode->i_uid);
	perms->group = cpu_to_be32(inode->i_gid);
}

static int hfsplus_cat_build_record(hfsplus_cat_entry *entry, u32 cnid, struct inode *inode)
{
	if (S_ISDIR(inode->i_mode)) {
		struct hfsplus_cat_folder *folder;

		folder = &entry->folder;
		memset(folder, 0, sizeof(*folder));
		folder->type = cpu_to_be16(HFSPLUS_FOLDER);
		folder->id = cpu_to_be32(inode->i_ino);
		HFSPLUS_I(inode).create_date =
			folder->create_date =
			folder->content_mod_date =
			folder->attribute_mod_date =
			folder->access_date = hfsp_now2mt();
		hfsplus_set_perms(inode, &folder->permissions);
		if (inode == HFSPLUS_SB(inode->i_sb).hidden_dir)
			/* invisible and namelocked */
			folder->user_info.frFlags = cpu_to_be16(0x5000);
		return sizeof(*folder);
	} else {
		struct hfsplus_cat_file *file;

		file = &entry->file;
		memset(file, 0, sizeof(*file));
		file->type = cpu_to_be16(HFSPLUS_FILE);
		file->flags = cpu_to_be16(HFSPLUS_FILE_THREAD_EXISTS);
		file->id = cpu_to_be32(cnid);
		HFSPLUS_I(inode).create_date =
			file->create_date =
			file->content_mod_date =
			file->attribute_mod_date =
			file->access_date = hfsp_now2mt();
		if (cnid == inode->i_ino) {
			hfsplus_set_perms(inode, &file->permissions);
			if (S_ISLNK(inode->i_mode)) {
				file->user_info.fdType = cpu_to_be32(HFSP_SYMLINK_TYPE);
				file->user_info.fdCreator = cpu_to_be32(HFSP_SYMLINK_CREATOR);
			} else {
				file->user_info.fdType = cpu_to_be32(HFSPLUS_SB(inode->i_sb).type);
				file->user_info.fdCreator = cpu_to_be32(HFSPLUS_SB(inode->i_sb).creator);
			}
			if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
				file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
		} else {
			file->user_info.fdType = cpu_to_be32(HFSP_HARDLINK_TYPE);
			file->user_info.fdCreator = cpu_to_be32(HFSP_HFSPLUS_CREATOR);
			file->user_info.fdFlags = cpu_to_be16(0x100);
			file->create_date = HFSPLUS_I(HFSPLUS_SB(inode->i_sb).hidden_dir).create_date;
			file->permissions.dev = cpu_to_be32(HFSPLUS_I(inode).dev);
		}
		return sizeof(*file);
	}
}

static int hfsplus_fill_cat_thread(struct super_block *sb,
				   hfsplus_cat_entry *entry, int type,
				   u32 parentid, struct qstr *str)
{
	entry->type = cpu_to_be16(type);
	entry->thread.reserved = 0;
	entry->thread.parentID = cpu_to_be32(parentid);
	hfsplus_asc2uni(sb, &entry->thread.nodeName, str->name, str->len);
	return 10 + be16_to_cpu(entry->thread.nodeName.length) * 2;
}

/* Try to get a catalog entry for given catalog id */
int hfsplus_find_cat(struct super_block *sb, u32 cnid,
		     struct hfs_find_data *fd)
{
	hfsplus_cat_entry tmp;
	int err;
	u16 type;

	hfsplus_cat_build_key(sb, fd->search_key, cnid, NULL);
	err = hfs_brec_read(fd, &tmp, sizeof(hfsplus_cat_entry));
	if (err)
		return err;

	type = be16_to_cpu(tmp.type);
	if (type != HFSPLUS_FOLDER_THREAD && type != HFSPLUS_FILE_THREAD) {
		printk(KERN_ERR "hfs: found bad thread record in catalog\n");
		return -EIO;
	}

	if (be16_to_cpu(tmp.thread.nodeName.length) > 255) {
		printk(KERN_ERR "hfs: catalog name length corrupted\n");
		return -EIO;
	}

	hfsplus_cat_build_key_uni(fd->search_key, be32_to_cpu(tmp.thread.parentID),
				 &tmp.thread.nodeName);
	return hfs_brec_find(fd);
}

int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str, struct inode *inode)
{
	struct hfs_find_data fd;
	struct super_block *sb;
	hfsplus_cat_entry entry;
	int entry_size;
	int err;

	dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);
	sb = dir->i_sb;
	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
	entry_size = hfsplus_fill_cat_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
			HFSPLUS_FOLDER_THREAD : HFSPLUS_FILE_THREAD,
			dir->i_ino, str);
	err = hfs_brec_find(&fd);
	if (err != -ENOENT) {
		if (!err)
			err = -EEXIST;
		goto err2;
	}
	err = hfs_brec_insert(&fd, &entry, entry_size);
	if (err)
		goto err2;

	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
	entry_size = hfsplus_cat_build_record(&entry, cnid, inode);
	err = hfs_brec_find(&fd);
	if (err != -ENOENT) {
		/* panic? */
		if (!err)
			err = -EEXIST;
		goto err1;
	}
	err = hfs_brec_insert(&fd, &entry, entry_size);
	if (err)
		goto err1;

	dir->i_size++;
	dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
	mark_inode_dirty(dir);
	hfs_find_exit(&fd);
	return 0;

err1:
	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
	if (!hfs_brec_find(&fd))
		hfs_brec_remove(&fd);
err2:
	hfs_find_exit(&fd);
	return err;
}

int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
{
	struct super_block *sb;
	struct hfs_find_data fd;
	struct hfsplus_fork_raw fork;
	struct list_head *pos;
	int err, off;
	u16 type;

	dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
	sb = dir->i_sb;
	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	if (!str) {
		int len;

		hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
		err = hfs_brec_find(&fd);
		if (err)
			goto out;

		off = fd.entryoffset + offsetof(struct hfsplus_cat_thread, nodeName);
		fd.search_key->cat.parent = cpu_to_be32(dir->i_ino);
		hfs_bnode_read(fd.bnode, &fd.search_key->cat.name.length, off, 2);
		len = be16_to_cpu(fd.search_key->cat.name.length) * 2;
		hfs_bnode_read(fd.bnode, &fd.search_key->cat.name.unicode, off + 2, len);
		fd.search_key->key_len = cpu_to_be16(6 + len);
	} else
		hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);

	err = hfs_brec_find(&fd);
	if (err)
		goto out;

	type = hfs_bnode_read_u16(fd.bnode, fd.entryoffset);
	if (type == HFSPLUS_FILE) {
#if 0
		off = fd.entryoffset + offsetof(hfsplus_cat_file, data_fork);
		hfs_bnode_read(fd.bnode, &fork, off, sizeof(fork));
		hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_DATA);
#endif

		off = fd.entryoffset + offsetof(struct hfsplus_cat_file, rsrc_fork);
		hfs_bnode_read(fd.bnode, &fork, off, sizeof(fork));
		hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_RSRC);
	}

	list_for_each(pos, &HFSPLUS_I(dir).open_dir_list) {
		struct hfsplus_readdir_data *rd =
			list_entry(pos, struct hfsplus_readdir_data, list);
		if (fd.tree->keycmp(fd.search_key, (void *)&rd->key) < 0)
			rd->file->f_pos--;
	}

	err = hfs_brec_remove(&fd);
	if (err)
		goto out;

	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
	err = hfs_brec_find(&fd);
	if (err)
		goto out;

	err = hfs_brec_remove(&fd);
	if (err)
		goto out;

	dir->i_size--;
	dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
	mark_inode_dirty(dir);
out:
	hfs_find_exit(&fd);

	return err;
}

int hfsplus_rename_cat(u32 cnid,
		       struct inode *src_dir, struct qstr *src_name,
		       struct inode *dst_dir, struct qstr *dst_name)
{
	struct super_block *sb;
	struct hfs_find_data src_fd, dst_fd;
	hfsplus_cat_entry entry;
	int entry_size, type;
	int err = 0;

	dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
		dst_dir->i_ino, dst_name->name);
	sb = src_dir->i_sb;
	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &src_fd);
	dst_fd = src_fd;

	/* find the old dir entry and read the data */
	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
	err = hfs_brec_find(&src_fd);
	if (err)
		goto out;

	hfs_bnode_read(src_fd.bnode, &entry, src_fd.entryoffset,
				src_fd.entrylength);

	/* create new dir entry with the data from the old entry */
	hfsplus_cat_build_key(sb, dst_fd.search_key, dst_dir->i_ino, dst_name);
	err = hfs_brec_find(&dst_fd);
	if (err != -ENOENT) {
		if (!err)
			err = -EEXIST;
		goto out;
	}

	err = hfs_brec_insert(&dst_fd, &entry, src_fd.entrylength);
	if (err)
		goto out;
	dst_dir->i_size++;
	dst_dir->i_mtime = dst_dir->i_ctime = CURRENT_TIME_SEC;
	mark_inode_dirty(dst_dir);

	/* finally remove the old entry */
	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
	err = hfs_brec_find(&src_fd);
	if (err)
		goto out;
	err = hfs_brec_remove(&src_fd);
	if (err)
		goto out;
	src_dir->i_size--;
	src_dir->i_mtime = src_dir->i_ctime = CURRENT_TIME_SEC;
	mark_inode_dirty(src_dir);

	/* remove old thread entry */
	hfsplus_cat_build_key(sb, src_fd.search_key, cnid, NULL);
	err = hfs_brec_find(&src_fd);
	if (err)
		goto out;
	type = hfs_bnode_read_u16(src_fd.bnode, src_fd.entryoffset);
	err = hfs_brec_remove(&src_fd);
	if (err)
		goto out;

	/* create new thread entry */
	hfsplus_cat_build_key(sb, dst_fd.search_key, cnid, NULL);
	entry_size = hfsplus_fill_cat_thread(sb, &entry, type, dst_dir->i_ino, dst_name);
	err = hfs_brec_find(&dst_fd);
	if (err != -ENOENT) {
		if (!err)
			err = -EEXIST;
		goto out;
	}
	err = hfs_brec_insert(&dst_fd, &entry, entry_size);
out:
	hfs_bnode_put(dst_fd.bnode);
	hfs_find_exit(&src_fd);
	return err;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/hfsplus/catalog.c
	3	*
	4	* Copyright (C) 2001
	5	* Brad Boyer (flar@allandria.com)
	6	* (C) 2003 Ardis Technologies <roman@ardistech.com>
	7	*
	8	* Handling of catalog records
	9	*/
	10
1da177e4 LT	11
	12	#include "hfsplus_fs.h"
	13	#include "hfsplus_raw.h"
	14
2179d372 DE	15	int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
2179d372 DE	16	const hfsplus_btree_key *k2)
1da177e4 LT	17	{
	18	__be32 k1p, k2p;
	19
	20	k1p = k1->cat.parent;
	21	k2p = k2->cat.parent;
	22	if (k1p != k2p)
	23	return be32_to_cpu(k1p) < be32_to_cpu(k2p) ? -1 : 1;
	24
2179d372 DE	25	return hfsplus_strcasecmp(&k1->cat.name, &k2->cat.name);
	26	}
	27
	28	int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
	29	const hfsplus_btree_key *k2)
	30	{
	31	__be32 k1p, k2p;
	32
	33	k1p = k1->cat.parent;
	34	k2p = k2->cat.parent;
	35	if (k1p != k2p)
	36	return be32_to_cpu(k1p) < be32_to_cpu(k2p) ? -1 : 1;
	37
	38	return hfsplus_strcmp(&k1->cat.name, &k2->cat.name);
1da177e4 LT	39	}
	40
	41	void hfsplus_cat_build_key(struct super_block sb, hfsplus_btree_key key,
	42	u32 parent, struct qstr *str)
	43	{
	44	int len;
	45
	46	key->cat.parent = cpu_to_be32(parent);
	47	if (str) {
	48	hfsplus_asc2uni(sb, &key->cat.name, str->name, str->len);
	49	len = be16_to_cpu(key->cat.name.length);
	50	} else {
	51	key->cat.name.length = 0;
	52	len = 0;
	53	}
	54	key->key_len = cpu_to_be16(6 + 2 * len);
	55	}
	56
	57	static void hfsplus_cat_build_key_uni(hfsplus_btree_key *key, u32 parent,
	58	struct hfsplus_unistr *name)
	59	{
	60	int ustrlen;
	61
	62	ustrlen = be16_to_cpu(name->length);
	63	key->cat.parent = cpu_to_be32(parent);
	64	key->cat.name.length = cpu_to_be16(ustrlen);
	65	ustrlen *= 2;
	66	memcpy(key->cat.name.unicode, name->unicode, ustrlen);
	67	key->key_len = cpu_to_be16(6 + ustrlen);
	68	}
	69
	70	static void hfsplus_set_perms(struct inode inode, struct hfsplus_perm perms)
	71	{
	72	if (inode->i_flags & S_IMMUTABLE)
	73	perms->rootflags \|= HFSPLUS_FLG_IMMUTABLE;
	74	else
	75	perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
	76	if (inode->i_flags & S_APPEND)
	77	perms->rootflags \|= HFSPLUS_FLG_APPEND;
	78	else
	79	perms->rootflags &= ~HFSPLUS_FLG_APPEND;
	80	HFSPLUS_I(inode).rootflags = perms->rootflags;
	81	HFSPLUS_I(inode).userflags = perms->userflags;
	82	perms->mode = cpu_to_be16(inode->i_mode);
	83	perms->owner = cpu_to_be32(inode->i_uid);
	84	perms->group = cpu_to_be32(inode->i_gid);
	85	}
	86
	87	static int hfsplus_cat_build_record(hfsplus_cat_entry entry, u32 cnid, struct inode inode)
	88	{
	89	if (S_ISDIR(inode->i_mode)) {
	90	struct hfsplus_cat_folder *folder;
	91
	92	folder = &entry->folder;
	93	memset(folder, 0, sizeof(*folder));
	94	folder->type = cpu_to_be16(HFSPLUS_FOLDER);
	95	folder->id = cpu_to_be32(inode->i_ino);
9a4cad95 RZ	96	HFSPLUS_I(inode).create_date =
	97	folder->create_date =
	98	folder->content_mod_date =
	99	folder->attribute_mod_date =
	100	folder->access_date = hfsp_now2mt();
1da177e4 LT	101	hfsplus_set_perms(inode, &folder->permissions);
	102	if (inode == HFSPLUS_SB(inode->i_sb).hidden_dir)
	103	/* invisible and namelocked */
	104	folder->user_info.frFlags = cpu_to_be16(0x5000);
	105	return sizeof(*folder);
	106	} else {
	107	struct hfsplus_cat_file *file;
	108
	109	file = &entry->file;
	110	memset(file, 0, sizeof(*file));
	111	file->type = cpu_to_be16(HFSPLUS_FILE);
	112	file->flags = cpu_to_be16(HFSPLUS_FILE_THREAD_EXISTS);
	113	file->id = cpu_to_be32(cnid);
9a4cad95 RZ	114	HFSPLUS_I(inode).create_date =
	115	file->create_date =
	116	file->content_mod_date =
	117	file->attribute_mod_date =
	118	file->access_date = hfsp_now2mt();
1da177e4 LT	119	if (cnid == inode->i_ino) {
1da177e4 LT	120	hfsplus_set_perms(inode, &file->permissions);
6b192832 RZ	121	if (S_ISLNK(inode->i_mode)) {
	122	file->user_info.fdType = cpu_to_be32(HFSP_SYMLINK_TYPE);
	123	file->user_info.fdCreator = cpu_to_be32(HFSP_SYMLINK_CREATOR);
	124	} else {
	125	file->user_info.fdType = cpu_to_be32(HFSPLUS_SB(inode->i_sb).type);
	126	file->user_info.fdCreator = cpu_to_be32(HFSPLUS_SB(inode->i_sb).creator);
	127	}
1da177e4 LT	128	if ((file->permissions.rootflags \| file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
	129	file->flags \|= cpu_to_be16(HFSPLUS_FILE_LOCKED);
	130	} else {
	131	file->user_info.fdType = cpu_to_be32(HFSP_HARDLINK_TYPE);
	132	file->user_info.fdCreator = cpu_to_be32(HFSP_HFSPLUS_CREATOR);
	133	file->user_info.fdFlags = cpu_to_be16(0x100);
af8c85bb	134	file->create_date = HFSPLUS_I(HFSPLUS_SB(inode->i_sb).hidden_dir).create_date;
1da177e4 LT	135	file->permissions.dev = cpu_to_be32(HFSPLUS_I(inode).dev);
	136	}
	137	return sizeof(*file);
	138	}
	139	}
	140
	141	static int hfsplus_fill_cat_thread(struct super_block *sb,
	142	hfsplus_cat_entry *entry, int type,
	143	u32 parentid, struct qstr *str)
	144	{
	145	entry->type = cpu_to_be16(type);
	146	entry->thread.reserved = 0;
	147	entry->thread.parentID = cpu_to_be32(parentid);
	148	hfsplus_asc2uni(sb, &entry->thread.nodeName, str->name, str->len);
	149	return 10 + be16_to_cpu(entry->thread.nodeName.length) * 2;
	150	}
	151
	152	/* Try to get a catalog entry for given catalog id */
	153	int hfsplus_find_cat(struct super_block *sb, u32 cnid,
	154	struct hfs_find_data *fd)
	155	{
	156	hfsplus_cat_entry tmp;
	157	int err;
	158	u16 type;
	159
	160	hfsplus_cat_build_key(sb, fd->search_key, cnid, NULL);
	161	err = hfs_brec_read(fd, &tmp, sizeof(hfsplus_cat_entry));
	162	if (err)
	163	return err;
	164
	165	type = be16_to_cpu(tmp.type);
	166	if (type != HFSPLUS_FOLDER_THREAD && type != HFSPLUS_FILE_THREAD) {
634725a9	167	printk(KERN_ERR "hfs: found bad thread record in catalog\n");
1da177e4 LT	168	return -EIO;
	169	}
	170
efc7ffcb ES	171	if (be16_to_cpu(tmp.thread.nodeName.length) > 255) {
	172	printk(KERN_ERR "hfs: catalog name length corrupted\n");
	173	return -EIO;
	174	}
	175
1da177e4 LT	176	hfsplus_cat_build_key_uni(fd->search_key, be32_to_cpu(tmp.thread.parentID),
	177	&tmp.thread.nodeName);
	178	return hfs_brec_find(fd);
	179	}
	180
	181	int hfsplus_create_cat(u32 cnid, struct inode dir, struct qstr str, struct inode *inode)
	182	{
	183	struct hfs_find_data fd;
	184	struct super_block *sb;
	185	hfsplus_cat_entry entry;
	186	int entry_size;
	187	int err;
	188
	189	dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);
	190	sb = dir->i_sb;
	191	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
	192
	193	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
	194	entry_size = hfsplus_fill_cat_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
	195	HFSPLUS_FOLDER_THREAD : HFSPLUS_FILE_THREAD,
	196	dir->i_ino, str);
	197	err = hfs_brec_find(&fd);
	198	if (err != -ENOENT) {
	199	if (!err)
	200	err = -EEXIST;
	201	goto err2;
	202	}
	203	err = hfs_brec_insert(&fd, &entry, entry_size);
	204	if (err)
	205	goto err2;
	206
	207	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
	208	entry_size = hfsplus_cat_build_record(&entry, cnid, inode);
	209	err = hfs_brec_find(&fd);
	210	if (err != -ENOENT) {
	211	/* panic? */
	212	if (!err)
	213	err = -EEXIST;
	214	goto err1;
	215	}
	216	err = hfs_brec_insert(&fd, &entry, entry_size);
	217	if (err)
	218	goto err1;
	219
	220	dir->i_size++;
	221	dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
	222	mark_inode_dirty(dir);
	223	hfs_find_exit(&fd);
	224	return 0;
	225
	226	err1:
	227	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
	228	if (!hfs_brec_find(&fd))
	229	hfs_brec_remove(&fd);
	230	err2:
	231	hfs_find_exit(&fd);
	232	return err;
	233	}
	234
	235	int hfsplus_delete_cat(u32 cnid, struct inode dir, struct qstr str)
	236	{
	237	struct super_block *sb;
	238	struct hfs_find_data fd;
	239	struct hfsplus_fork_raw fork;
240	struct list_head *pos;
241	int err, off;
242	u16 type;
243
244	dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
245	sb = dir->i_sb;
246	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
247
248	if (!str) {
249	int len;
250
251	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
252	err = hfs_brec_find(&fd);
253	if (err)
254	goto out;
255
256	off = fd.entryoffset + offsetof(struct hfsplus_cat_thread, nodeName);
257	fd.search_key->cat.parent = cpu_to_be32(dir->i_ino);
258	hfs_bnode_read(fd.bnode, &fd.search_key->cat.name.length, off, 2);
259	len = be16_to_cpu(fd.search_key->cat.name.length) * 2;
260	hfs_bnode_read(fd.bnode, &fd.search_key->cat.name.unicode, off + 2, len);
261	fd.search_key->key_len = cpu_to_be16(6 + len);
262	} else
263	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
264
265	err = hfs_brec_find(&fd);
266	if (err)
267	goto out;
268
269	type = hfs_bnode_read_u16(fd.bnode, fd.entryoffset);
270	if (type == HFSPLUS_FILE) {
271	#if 0
272	off = fd.entryoffset + offsetof(hfsplus_cat_file, data_fork);
273	hfs_bnode_read(fd.bnode, &fork, off, sizeof(fork));
274	hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_DATA);
275	#endif
276
277	off = fd.entryoffset + offsetof(struct hfsplus_cat_file, rsrc_fork);
278	hfs_bnode_read(fd.bnode, &fork, off, sizeof(fork));
279	hfsplus_free_fork(sb, cnid, &fork, HFSPLUS_TYPE_RSRC);
280	}
281
282	list_for_each(pos, &HFSPLUS_I(dir).open_dir_list) {
283	struct hfsplus_readdir_data *rd =
284	list_entry(pos, struct hfsplus_readdir_data, list);
285	if (fd.tree->keycmp(fd.search_key, (void *)&rd->key) < 0)
286	rd->file->f_pos--;
287	}
288
289	err = hfs_brec_remove(&fd);
290	if (err)
291	goto out;
292
293	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
294	err = hfs_brec_find(&fd);
295	if (err)
296	goto out;
297
298	err = hfs_brec_remove(&fd);
299	if (err)
300	goto out;
301
302	dir->i_size--;
303	dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
304	mark_inode_dirty(dir);
305	out:
306	hfs_find_exit(&fd);
307
308	return err;
309	}
310
311	int hfsplus_rename_cat(u32 cnid,
312	struct inode src_dir, struct qstr src_name,
313	struct inode dst_dir, struct qstr dst_name)
314	{
315	struct super_block *sb;
316	struct hfs_find_data src_fd, dst_fd;
317	hfsplus_cat_entry entry;
318	int entry_size, type;
319	int err = 0;
320
321	dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
322	dst_dir->i_ino, dst_name->name);
323	sb = src_dir->i_sb;
324	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &src_fd);
325	dst_fd = src_fd;
326
327	/* find the old dir entry and read the data */
328	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
329	err = hfs_brec_find(&src_fd);
330	if (err)
331	goto out;
332
333	hfs_bnode_read(src_fd.bnode, &entry, src_fd.entryoffset,
334	src_fd.entrylength);
335
336	/* create new dir entry with the data from the old entry */
337	hfsplus_cat_build_key(sb, dst_fd.search_key, dst_dir->i_ino, dst_name);
338	err = hfs_brec_find(&dst_fd);
339	if (err != -ENOENT) {
340	if (!err)
341	err = -EEXIST;
342	goto out;
343	}
344
345	err = hfs_brec_insert(&dst_fd, &entry, src_fd.entrylength);
346	if (err)
347	goto out;
348	dst_dir->i_size++;
349	dst_dir->i_mtime = dst_dir->i_ctime = CURRENT_TIME_SEC;
350	mark_inode_dirty(dst_dir);
351
352	/* finally remove the old entry */
353	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
354	err = hfs_brec_find(&src_fd);
355	if (err)
356	goto out;
357	err = hfs_brec_remove(&src_fd);
358	if (err)
359	goto out;
360	src_dir->i_size--;
361	src_dir->i_mtime = src_dir->i_ctime = CURRENT_TIME_SEC;
362	mark_inode_dirty(src_dir);
363
364	/* remove old thread entry */
365	hfsplus_cat_build_key(sb, src_fd.search_key, cnid, NULL);
366	err = hfs_brec_find(&src_fd);
367	if (err)
368	goto out;
369	type = hfs_bnode_read_u16(src_fd.bnode, src_fd.entryoffset);
370	err = hfs_brec_remove(&src_fd);
371	if (err)
372	goto out;
373
374	/* create new thread entry */
375	hfsplus_cat_build_key(sb, dst_fd.search_key, cnid, NULL);
376	entry_size = hfsplus_fill_cat_thread(sb, &entry, type, dst_dir->i_ino, dst_name);
377	err = hfs_brec_find(&dst_fd);
378	if (err != -ENOENT) {
379	if (!err)
380	err = -EEXIST;
381	goto out;
382	}
383	err = hfs_brec_insert(&dst_fd, &entry, entry_size);
384	out:
385	hfs_bnode_put(dst_fd.bnode);
386	hfs_find_exit(&src_fd);
387	return err;
388	}