patch-2.4.22 linux-2.4.22/fs/hfsplus/hfsplus_fs.h
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- Lines: 369
- Date:
2003-08-25 04:44:43.000000000 -0700
- Orig file:
linux-2.4.21/fs/hfsplus/hfsplus_fs.h
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.21/fs/hfsplus/hfsplus_fs.h linux-2.4.22/fs/hfsplus/hfsplus_fs.h
@@ -0,0 +1,368 @@
+/*
+ * linux/include/linux/hfsplus_fs.h
+ *
+ * Copyright (C) 1999
+ * Brad Boyer (flar@pants.nu)
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ *
+ */
+
+#ifndef _LINUX_HFSPLUS_FS_H
+#define _LINUX_HFSPLUS_FS_H
+
+#include <linux/fs.h>
+#include <linux/version.h>
+#include "hfsplus_raw.h"
+
+#define DBG_BNODE_REFS 0x00000001
+#define DBG_BNODE_MOD 0x00000002
+#define DBG_CAT_MOD 0x00000004
+#define DBG_INODE 0x00000008
+#define DBG_SUPER 0x00000010
+#define DBG_EXTENT 0x00000020
+
+//#define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
+//#define DBG_MASK (DBG_BNODE_MOD|DBG_CAT_MOD)
+//#define DBG_MASK (DBG_BNODE_REFS|DBG_INODE|DBG_BNODE_MOD)
+#define DBG_MASK (0)
+
+#define dprint(flg, fmt, args...) \
+ if (flg & DBG_MASK) printk(fmt , ## args)
+
+/* Runtime config options */
+#define HFSPLUS_CASE_ASIS 0
+#define HFSPLUS_CASE_LOWER 1
+
+#define HFSPLUS_FORK_RAW 0
+#define HFSPLUS_FORK_CAP 1
+#define HFSPLUS_FORK_DOUBLE 2
+#define HFSPLUS_FORK_NETATALK 3
+
+#define HFSPLUS_NAMES_TRIVIAL 0
+#define HFSPLUS_NAMES_CAP 1
+#define HFSPLUS_NAMES_NETATALK 2
+#define HFSPLUS_NAMES_7BIT 3
+
+#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
+
+#define HFSPLUS_TYPE_DATA 0x00
+#define HFSPLUS_TYPE_RSRC 0xFF
+
+typedef int (*btree_keycmp)(hfsplus_btree_key *, hfsplus_btree_key *);
+
+#define NODE_HASH_SIZE 256
+
+/* An HFS+ BTree held in memory */
+typedef struct hfsplus_btree {
+ struct super_block *sb;
+ struct inode *inode;
+ btree_keycmp keycmp;
+
+ u32 cnid;
+ u32 root;
+ u32 leaf_count;
+ u32 leaf_head;
+ u32 leaf_tail;
+ u32 node_count;
+ u32 free_nodes;
+ u32 attributes;
+
+ unsigned int node_size;
+ unsigned int node_size_shift;
+ unsigned int max_key_len;
+ unsigned int depth;
+
+ //unsigned int map1_size, map_size;
+ struct semaphore tree_lock;
+
+ unsigned int pages_per_bnode;
+ spinlock_t hash_lock;
+ struct hfsplus_bnode *node_hash[NODE_HASH_SIZE];
+ int node_hash_cnt;
+} hfsplus_btree;
+
+struct page;
+
+/* An HFS+ BTree node in memory */
+typedef struct hfsplus_bnode {
+ struct hfsplus_btree *tree;
+
+ u32 prev;
+ u32 this;
+ u32 next;
+ u32 parent;
+
+ u16 num_recs;
+ u8 kind;
+ u8 height;
+
+ struct hfsplus_bnode *next_hash;
+ unsigned long flags;
+ wait_queue_head_t lock_wq;
+ atomic_t refcnt;
+ unsigned int page_offset;
+ struct page *page[0];
+} hfsplus_bnode;
+
+#define HFSPLUS_BNODE_LOCK 0
+#define HFSPLUS_BNODE_ERROR 1
+#define HFSPLUS_BNODE_NEW 2
+#define HFSPLUS_BNODE_DIRTY 3
+#define HFSPLUS_BNODE_DELETED 4
+
+/*
+ * HFS+ superblock info (built from Volume Header on disk)
+ */
+
+struct hfsplus_vh;
+struct hfsplus_btree;
+
+struct hfsplus_sb_info {
+ struct buffer_head *s_vhbh;
+ struct hfsplus_vh *s_vhdr;
+ struct hfsplus_btree *ext_tree;
+ struct hfsplus_btree *cat_tree;
+ struct hfsplus_btree *attr_tree;
+ struct inode *alloc_file;
+ struct inode *hidden_dir;
+
+ /* Runtime variables */
+ u32 blockoffset;
+ u32 sect_count;
+ //int a2b_shift;
+
+ /* Stuff in host order from Vol Header */
+ u32 total_blocks;
+ u32 free_blocks;
+ u32 next_alloc;
+ u32 next_cnid;
+ u32 file_count;
+ u32 folder_count;
+
+ /* Config options */
+ u32 creator;
+ u32 type;
+
+ int charcase;
+ int fork;
+ int namemap;
+
+ umode_t umask;
+ uid_t uid;
+ gid_t gid;
+
+ unsigned long flags;
+
+ atomic_t inode_cnt;
+ u32 last_inode_cnt;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ struct list_head rsrc_inodes;
+#else
+ struct hlist_head rsrc_inodes;
+#endif
+};
+
+#define HFSPLUS_SB_WRITEBACKUP 0x0001
+
+
+struct hfsplus_inode_info {
+ /* Device number in hfsplus_permissions in catalog */
+ u32 dev;
+ /* Allocation extents from catlog record or volume header */
+ hfsplus_extent_rec extents;
+ u32 total_blocks, extent_blocks, alloc_blocks;
+ atomic_t opencnt;
+
+ struct inode *rsrc_inode;
+ unsigned long flags;
+
+ struct list_head open_dir_list;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ unsigned long mmu_private;
+#else
+ loff_t mmu_private;
+ struct inode vfs_inode;
+#endif
+};
+
+#define HFSPLUS_FLG_RSRC 0x0001
+#define HFSPLUS_FLG_DIRTYMODE 0x0002
+
+#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))
+#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)
+
+struct hfsplus_find_data {
+ /* filled by caller */
+ hfsplus_btree_key *search_key;
+ hfsplus_btree_key *key;
+ /* filled by find */
+ hfsplus_btree *tree;
+ hfsplus_bnode *bnode;
+ /* filled by findrec */
+ int record, exact;
+ int keyoffset, keylength;
+ int entryoffset, entrylength;
+};
+
+struct hfsplus_readdir_data {
+ struct list_head list;
+ struct file *file;
+ hfsplus_cat_key key;
+};
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+typedef long sector_t;
+#endif
+
+/*
+ * Functions in any *.c used in other files
+ */
+
+/* bfind.c */
+void hfsplus_find_rec(hfsplus_bnode *, struct hfsplus_find_data *);
+int hfsplus_btree_find(struct hfsplus_find_data *);
+int hfsplus_btree_find_entry(struct hfsplus_find_data *,
+ void *, int);
+int hfsplus_btree_move(struct hfsplus_find_data *, int);
+int hfsplus_find_init(hfsplus_btree *, struct hfsplus_find_data *);
+void hfsplus_find_exit(struct hfsplus_find_data *);
+
+/* bnode.c */
+struct buffer_head *hfsplus_getblk(struct inode *, unsigned long);
+hfsplus_bnode *__hfsplus_find_bnode(hfsplus_btree *, u32);
+void __hfsplus_bnode_remove(hfsplus_bnode *);
+hfsplus_bnode *hfsplus_create_bnode(hfsplus_btree *, u32);
+hfsplus_bnode *hfsplus_find_bnode(hfsplus_btree *, u32);
+void hfsplus_get_bnode(hfsplus_bnode *);
+void hfsplus_put_bnode(hfsplus_bnode *);
+void hfsplus_bnode_free(hfsplus_bnode *);
+void hfsplus_bnode_readbytes(hfsplus_bnode *, void *, unsigned long, unsigned long);
+u16 hfsplus_bnode_read_u16(hfsplus_bnode *, unsigned long);
+void hfsplus_bnode_writebytes(hfsplus_bnode *, void *, unsigned long, unsigned long);
+void hfsplus_bnode_write_u16(hfsplus_bnode *, unsigned long, u16);
+void hfsplus_bnode_copybytes(hfsplus_bnode *, unsigned long,
+ hfsplus_bnode *, unsigned long, unsigned long);
+void hfsplus_bnode_movebytes(hfsplus_bnode *, unsigned long, unsigned long, unsigned long);
+int hfsplus_bnode_insert_rec(struct hfsplus_find_data *, void *, int);
+int hfsplus_bnode_remove_rec(struct hfsplus_find_data *);
+
+/* brec.c */
+u16 hfsplus_brec_lenoff(hfsplus_bnode *, u16, u16 *);
+u16 hfsplus_brec_keylen(hfsplus_bnode *, u16);
+
+/* btree.c */
+hfsplus_btree *hfsplus_open_btree(struct super_block *, u32);
+void hfsplus_close_btree(struct hfsplus_btree *);
+void hfsplus_write_btree(struct hfsplus_btree *);
+hfsplus_bnode *hfsplus_btree_alloc_node(hfsplus_btree *);
+void hfsplus_btree_remove_node(hfsplus_bnode *);
+void hfsplus_btree_free_node(hfsplus_bnode *);
+
+/* catalog.c */
+int hfsplus_cmp_cat_key(hfsplus_btree_key *, hfsplus_btree_key *);
+void hfsplus_fill_cat_key(hfsplus_btree_key *, u32, struct qstr *);
+int hfsplus_find_cat(struct super_block *, unsigned long, struct hfsplus_find_data *);
+int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
+int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
+int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
+ struct inode *, struct qstr *);
+
+/* extents.c */
+int hfsplus_cmp_ext_key(hfsplus_btree_key *, hfsplus_btree_key *);
+void hfsplus_fill_ext_key(hfsplus_btree_key *, u32, u32, u8);
+int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
+int hfsplus_free_fork(struct super_block *, u32, hfsplus_fork_raw *, int);
+int hfsplus_extend_file(struct inode *);
+void hfsplus_truncate(struct inode *);
+
+/* inode.c */
+void hfsplus_inode_read_fork(struct inode *, hfsplus_fork_raw *);
+void hfsplus_inode_write_fork(struct inode *, hfsplus_fork_raw *);
+int hfsplus_cat_read_inode(struct inode *, struct hfsplus_find_data *);
+void hfsplus_cat_write_inode(struct inode *);
+struct inode *hfsplus_new_inode(struct super_block *, int);
+void hfsplus_delete_inode(struct inode *);
+
+extern struct address_space_operations hfsplus_btree_aops;
+
+/* options.c */
+int parse_options(char *, struct hfsplus_sb_info *);
+void fill_defaults(struct hfsplus_sb_info *);
+void fill_current(struct hfsplus_sb_info *, struct hfsplus_sb_info *);
+
+/* tables.c */
+extern u16 case_fold_table[];
+
+/* unicode.c */
+int hfsplus_unistrcmp(const hfsplus_unistr *, const hfsplus_unistr *);
+int hfsplus_uni2asc(const hfsplus_unistr *, char *, int *);
+int hfsplus_asc2uni(hfsplus_unistr *, const char *, int);
+
+/* wrapper.c */
+int hfsplus_read_wrapper(struct super_block *);
+
+/* access macros */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#define HFSPLUS_SB(super) (*(struct hfsplus_sb_info *)&(super)->u)
+#define HFSPLUS_I(inode) (*(struct hfsplus_inode_info *)&(inode)->u)
+#else
+/*
+static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
+{
+ return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
+}
+*/
+#define HFSPLUS_SB(super) (*(struct hfsplus_sb_info *)(super)->s_fs_info)
+#define HFSPLUS_I(inode) (*list_entry(inode, struct hfsplus_inode_info, vfs_inode))
+#endif
+
+#if 1
+#define hfsplus_kmap(p) ({ struct page *__p = (p); kmap(__p); })
+#define hfsplus_kunmap(p) ({ struct page *__p = (p); kunmap(__p); __p; })
+#else
+#define hfsplus_kmap(p) kmap(p)
+#define hfsplus_kunmap(p) kunmap(p)
+#endif
+
+/* time macros */
+#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
+#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
+
+/* compatibility */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+#define PageUptodate(page) Page_Uptodate(page)
+#define wait_on_page_locked(page) wait_on_page(page)
+#define get_seconds() CURRENT_TIME
+#define page_symlink(i,n,l) block_symlink(i,n,l)
+#define map_bh(bh, sb, block) ({ \
+ bh->b_dev = kdev_t_to_nr(sb->s_dev); \
+ bh->b_blocknr = block; \
+ bh->b_state |= (1UL << BH_Mapped); \
+})
+#define set_buffer_new(bh) (bh->b_state |= (1UL << BH_New))
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21)
+#define new_inode(sb) ({ \
+ struct inode *inode = get_empty_inode(); \
+ if (inode) { \
+ inode->i_sb = sb; \
+ inode->i_dev = sb->s_dev; \
+ inode->i_blkbits = sb->s_blocksize_bits; \
+ } \
+ inode; \
+})
+#endif
+#define hfsp_mt2ut(t) __hfsp_mt2ut(t)
+#define hfsp_ut2mt(t) __hfsp_ut2mt(t)
+#define hfsp_now2mt() __hfsp_ut2mt(CURRENT_TIME)
+#else
+#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
+#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
+#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
+#endif
+
+#endif
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