提交 94f2f715 编写于 作者: A Al Viro 提交者: Linus Torvalds

[PATCH] isofs includes sanitized

fs/isofs includes trimmed down to something resembling sanity.

Kernel-only parts of linux/iso_fs.h and entire linux/iso_fs_{sb,i}.h
moved to fs/isofs/isofs.h.

A lot of useless #include in fs/isofs/*.c killed. 
Signed-off-by: NAl Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 7366d36c
...@@ -18,29 +18,12 @@ ...@@ -18,29 +18,12 @@
#include <linux/config.h> #include <linux/config.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/iso_fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/nls.h>
#include <linux/ctype.h>
#include <linux/smp_lock.h>
#include <linux/blkdev.h>
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <linux/zlib.h> #include <linux/zlib.h>
#include <linux/buffer_head.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include "isofs.h"
#include "zisofs.h" #include "zisofs.h"
/* This should probably be global. */ /* This should probably be global. */
......
...@@ -10,20 +10,9 @@ ...@@ -10,20 +10,9 @@
* *
* isofs directory handling functions * isofs directory handling functions
*/ */
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/iso_fs.h>
#include <linux/kernel.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/config.h> #include <linux/config.h>
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/buffer_head.h> #include "isofs.h"
#include <asm/uaccess.h>
static int isofs_readdir(struct file *, void *, filldir_t); static int isofs_readdir(struct file *, void *, filldir_t);
......
...@@ -13,11 +13,7 @@ ...@@ -13,11 +13,7 @@
* fs/exportfs/expfs.c. * fs/exportfs/expfs.c.
*/ */
#include <linux/buffer_head.h> #include "isofs.h"
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/iso_fs.h>
#include <linux/kernel.h>
static struct dentry * static struct dentry *
isofs_export_iget(struct super_block *sb, isofs_export_iget(struct super_block *sb,
......
...@@ -12,29 +12,18 @@ ...@@ -12,29 +12,18 @@
*/ */
#include <linux/config.h> #include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/iso_fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/errno.h>
#include <linux/cdrom.h>
#include <linux/init.h>
#include <linux/nls.h> #include <linux/nls.h>
#include <linux/ctype.h> #include <linux/ctype.h>
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/blkdev.h> #include <linux/statfs.h>
#include <linux/buffer_head.h> #include <linux/cdrom.h>
#include <linux/vfs.h>
#include <linux/parser.h> #include <linux/parser.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include "isofs.h"
#include "zisofs.h" #include "zisofs.h"
#define BEQUIET #define BEQUIET
......
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/iso_fs.h>
#include <asm/unaligned.h>
enum isofs_file_format {
isofs_file_normal = 0,
isofs_file_sparse = 1,
isofs_file_compressed = 2,
};
/*
* iso fs inode data in memory
*/
struct iso_inode_info {
unsigned long i_iget5_block;
unsigned long i_iget5_offset;
unsigned int i_first_extent;
unsigned char i_file_format;
unsigned char i_format_parm[3];
unsigned long i_next_section_block;
unsigned long i_next_section_offset;
off_t i_section_size;
struct inode vfs_inode;
};
/*
* iso9660 super-block data in memory
*/
struct isofs_sb_info {
unsigned long s_ninodes;
unsigned long s_nzones;
unsigned long s_firstdatazone;
unsigned long s_log_zone_size;
unsigned long s_max_size;
unsigned char s_high_sierra; /* A simple flag */
unsigned char s_mapping;
int s_rock_offset; /* offset of SUSP fields within SU area */
unsigned char s_rock;
unsigned char s_joliet_level;
unsigned char s_utf8;
unsigned char s_cruft; /* Broken disks with high
byte of length containing
junk */
unsigned char s_unhide;
unsigned char s_nosuid;
unsigned char s_nodev;
unsigned char s_nocompress;
mode_t s_mode;
gid_t s_gid;
uid_t s_uid;
struct nls_table *s_nls_iocharset; /* Native language support table */
};
static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb)
{
return sb->s_fs_info;
}
static inline struct iso_inode_info *ISOFS_I(struct inode *inode)
{
return container_of(inode, struct iso_inode_info, vfs_inode);
}
static inline int isonum_711(char *p)
{
return *(u8 *)p;
}
static inline int isonum_712(char *p)
{
return *(s8 *)p;
}
static inline unsigned int isonum_721(char *p)
{
return le16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_722(char *p)
{
return be16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_723(char *p)
{
/* Ignore bigendian datum due to broken mastering programs */
return le16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_731(char *p)
{
return le32_to_cpu(get_unaligned((__le32 *)p));
}
static inline unsigned int isonum_732(char *p)
{
return be32_to_cpu(get_unaligned((__le32 *)p));
}
static inline unsigned int isonum_733(char *p)
{
/* Ignore bigendian datum due to broken mastering programs */
return le32_to_cpu(get_unaligned((__le32 *)p));
}
extern int iso_date(char *, int);
struct inode; /* To make gcc happy */
extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *);
extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *);
extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *);
int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *);
int get_acorn_filename(struct iso_directory_record *, char *, struct inode *);
extern struct dentry *isofs_lookup(struct inode *, struct dentry *, struct nameidata *);
extern struct buffer_head *isofs_bread(struct inode *, sector_t);
extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long);
extern struct inode *isofs_iget(struct super_block *sb,
unsigned long block,
unsigned long offset);
/* Because the inode number is no longer relevant to finding the
* underlying meta-data for an inode, we are free to choose a more
* convenient 32-bit number as the inode number. The inode numbering
* scheme was recommended by Sergey Vlasov and Eric Lammerts. */
static inline unsigned long isofs_get_ino(unsigned long block,
unsigned long offset,
unsigned long bufbits)
{
return (block << (bufbits - 5)) | (offset >> 5);
}
/* Every directory can have many redundant directory entries scattered
* throughout the directory tree. First there is the directory entry
* with the name of the directory stored in the parent directory.
* Then, there is the "." directory entry stored in the directory
* itself. Finally, there are possibly many ".." directory entries
* stored in all the subdirectories.
*
* In order for the NFS get_parent() method to work and for the
* general consistency of the dcache, we need to make sure the
* "i_iget5_block" and "i_iget5_offset" all point to exactly one of
* the many redundant entries for each directory. We normalize the
* block and offset by always making them point to the "." directory.
*
* Notice that we do not use the entry for the directory with the name
* that is located in the parent directory. Even though choosing this
* first directory is more natural, it is much easier to find the "."
* entry in the NFS get_parent() method because it is implicitly
* encoded in the "extent + ext_attr_length" fields of _all_ the
* redundant entries for the directory. Thus, it can always be
* reached regardless of which directory entry you have in hand.
*
* This works because the "." entry is simply the first directory
* record when you start reading the file that holds all the directory
* records, and this file starts at "extent + ext_attr_length" blocks.
* Because the "." entry is always the first entry listed in the
* directories file, the normalized "offset" value is always 0.
*
* You should pass the directory entry in "de". On return, "block"
* and "offset" will hold normalized values. Only directories are
* affected making it safe to call even for non-directory file
* types. */
static inline void
isofs_normalize_block_and_offset(struct iso_directory_record* de,
unsigned long *block,
unsigned long *offset)
{
/* Only directories are normalized. */
if (de->flags[0] & 2) {
*offset = 0;
*block = (unsigned long)isonum_733(de->extent)
+ (unsigned long)isonum_711(de->ext_attr_length);
}
}
extern struct inode_operations isofs_dir_inode_operations;
extern struct file_operations isofs_dir_operations;
extern struct address_space_operations isofs_symlink_aops;
extern struct export_operations isofs_export_ops;
/* The following macros are used to check for memory leaks. */
#ifdef LEAK_CHECK
#define free_s leak_check_free_s
#define malloc leak_check_malloc
#define sb_bread leak_check_bread
#define brelse leak_check_brelse
extern void * leak_check_malloc(unsigned int size);
extern void leak_check_free_s(void * obj, int size);
extern struct buffer_head * leak_check_bread(struct super_block *sb, int block);
extern void leak_check_brelse(struct buffer_head * bh);
#endif /* LEAK_CHECK */
...@@ -6,11 +6,9 @@ ...@@ -6,11 +6,9 @@
* Joliet: Microsoft's Unicode extensions to iso9660 * Joliet: Microsoft's Unicode extensions to iso9660
*/ */
#include <linux/string.h> #include <linux/types.h>
#include <linux/nls.h> #include <linux/nls.h>
#include <linux/mm.h> #include "isofs.h"
#include <linux/iso_fs.h>
#include <asm/unaligned.h>
/* /*
* Convert Unicode 16 to UTF8 or ASCII. * Convert Unicode 16 to UTF8 or ASCII.
......
...@@ -6,20 +6,9 @@ ...@@ -6,20 +6,9 @@
* (C) 1991 Linus Torvalds - minix filesystem * (C) 1991 Linus Torvalds - minix filesystem
*/ */
#include <linux/time.h>
#include <linux/iso_fs.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/config.h> /* Joliet? */ #include <linux/config.h> /* Joliet? */
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/buffer_head.h> #include "isofs.h"
#include <linux/dcache.h>
#include <asm/uaccess.h>
/* /*
* ok, we cannot use strncmp, as the name is not in our data space. * ok, we cannot use strncmp, as the name is not in our data space.
......
...@@ -6,17 +6,11 @@ ...@@ -6,17 +6,11 @@
* Rock Ridge Extensions to iso9660 * Rock Ridge Extensions to iso9660
*/ */
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/iso_fs.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/pagemap.h> #include <linux/pagemap.h>
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <asm/page.h>
#include "isofs.h"
#include "rock.h" #include "rock.h"
/* These functions are designed to read the system areas of a directory record /* These functions are designed to read the system areas of a directory record
......
...@@ -2,9 +2,7 @@ ...@@ -2,9 +2,7 @@
* linux/fs/isofs/util.c * linux/fs/isofs/util.c
*/ */
#include <linux/time.h> #include "isofs.h"
#include <linux/fs.h>
#include <linux/iso_fs.h>
/* /*
* We have to convert from a MM/DD/YY format to the Unix ctime format. * We have to convert from a MM/DD/YY format to the Unix ctime format.
...@@ -80,4 +78,3 @@ int iso_date(char * p, int flag) ...@@ -80,4 +78,3 @@ int iso_date(char * p, int flag)
} }
return crtime; return crtime;
} }
#ifndef _ISOFS_FS_H #ifndef _ISOFS_FS_H
#define _ISOFS_FS_H #define _ISOFS_FS_H
...@@ -163,150 +162,4 @@ struct iso_directory_record { ...@@ -163,150 +162,4 @@ struct iso_directory_record {
#define ISOFS_SUPER_MAGIC 0x9660 #define ISOFS_SUPER_MAGIC 0x9660
#ifdef __KERNEL__
/* Number conversion inlines, named after the section in ISO 9660
they correspond to. */
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <linux/iso_fs_i.h>
#include <linux/iso_fs_sb.h>
static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb)
{
return sb->s_fs_info;
}
static inline struct iso_inode_info *ISOFS_I(struct inode *inode)
{
return container_of(inode, struct iso_inode_info, vfs_inode);
}
static inline int isonum_711(char *p)
{
return *(u8 *)p;
}
static inline int isonum_712(char *p)
{
return *(s8 *)p;
}
static inline unsigned int isonum_721(char *p)
{
return le16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_722(char *p)
{
return be16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_723(char *p)
{
/* Ignore bigendian datum due to broken mastering programs */
return le16_to_cpu(get_unaligned((__le16 *)p));
}
static inline unsigned int isonum_731(char *p)
{
return le32_to_cpu(get_unaligned((__le32 *)p));
}
static inline unsigned int isonum_732(char *p)
{
return be32_to_cpu(get_unaligned((__le32 *)p));
}
static inline unsigned int isonum_733(char *p)
{
/* Ignore bigendian datum due to broken mastering programs */
return le32_to_cpu(get_unaligned((__le32 *)p));
}
extern int iso_date(char *, int);
struct inode; /* To make gcc happy */
extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *);
extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *);
extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *);
int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *);
int get_acorn_filename(struct iso_directory_record *, char *, struct inode *);
extern struct dentry *isofs_lookup(struct inode *, struct dentry *, struct nameidata *);
extern struct buffer_head *isofs_bread(struct inode *, sector_t);
extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long);
extern struct inode *isofs_iget(struct super_block *sb,
unsigned long block,
unsigned long offset);
/* Because the inode number is no longer relevant to finding the
* underlying meta-data for an inode, we are free to choose a more
* convenient 32-bit number as the inode number. The inode numbering
* scheme was recommended by Sergey Vlasov and Eric Lammerts. */
static inline unsigned long isofs_get_ino(unsigned long block,
unsigned long offset,
unsigned long bufbits)
{
return (block << (bufbits - 5)) | (offset >> 5);
}
/* Every directory can have many redundant directory entries scattered
* throughout the directory tree. First there is the directory entry
* with the name of the directory stored in the parent directory.
* Then, there is the "." directory entry stored in the directory
* itself. Finally, there are possibly many ".." directory entries
* stored in all the subdirectories.
*
* In order for the NFS get_parent() method to work and for the
* general consistency of the dcache, we need to make sure the
* "i_iget5_block" and "i_iget5_offset" all point to exactly one of
* the many redundant entries for each directory. We normalize the
* block and offset by always making them point to the "." directory.
*
* Notice that we do not use the entry for the directory with the name
* that is located in the parent directory. Even though choosing this
* first directory is more natural, it is much easier to find the "."
* entry in the NFS get_parent() method because it is implicitly
* encoded in the "extent + ext_attr_length" fields of _all_ the
* redundant entries for the directory. Thus, it can always be
* reached regardless of which directory entry you have in hand.
*
* This works because the "." entry is simply the first directory
* record when you start reading the file that holds all the directory
* records, and this file starts at "extent + ext_attr_length" blocks.
* Because the "." entry is always the first entry listed in the
* directories file, the normalized "offset" value is always 0.
*
* You should pass the directory entry in "de". On return, "block"
* and "offset" will hold normalized values. Only directories are
* affected making it safe to call even for non-directory file
* types. */
static inline void
isofs_normalize_block_and_offset(struct iso_directory_record* de,
unsigned long *block,
unsigned long *offset)
{
/* Only directories are normalized. */
if (de->flags[0] & 2) {
*offset = 0;
*block = (unsigned long)isonum_733(de->extent)
+ (unsigned long)isonum_711(de->ext_attr_length);
}
}
extern struct inode_operations isofs_dir_inode_operations;
extern struct file_operations isofs_dir_operations;
extern struct address_space_operations isofs_symlink_aops;
extern struct export_operations isofs_export_ops;
/* The following macros are used to check for memory leaks. */
#ifdef LEAK_CHECK
#define free_s leak_check_free_s
#define malloc leak_check_malloc
#define sb_bread leak_check_bread
#define brelse leak_check_brelse
extern void * leak_check_malloc(unsigned int size);
extern void leak_check_free_s(void * obj, int size);
extern struct buffer_head * leak_check_bread(struct super_block *sb, int block);
extern void leak_check_brelse(struct buffer_head * bh);
#endif /* LEAK_CHECK */
#endif /* __KERNEL__ */
#endif #endif
#ifndef _ISO_FS_I
#define _ISO_FS_I
#include <linux/fs.h>
enum isofs_file_format {
isofs_file_normal = 0,
isofs_file_sparse = 1,
isofs_file_compressed = 2,
};
/*
* iso fs inode data in memory
*/
struct iso_inode_info {
unsigned long i_iget5_block;
unsigned long i_iget5_offset;
unsigned int i_first_extent;
unsigned char i_file_format;
unsigned char i_format_parm[3];
unsigned long i_next_section_block;
unsigned long i_next_section_offset;
off_t i_section_size;
struct inode vfs_inode;
};
#endif
#ifndef _ISOFS_FS_SB
#define _ISOFS_FS_SB
/*
* iso9660 super-block data in memory
*/
struct isofs_sb_info {
unsigned long s_ninodes;
unsigned long s_nzones;
unsigned long s_firstdatazone;
unsigned long s_log_zone_size;
unsigned long s_max_size;
unsigned char s_high_sierra; /* A simple flag */
unsigned char s_mapping;
int s_rock_offset; /* offset of SUSP fields within SU area */
unsigned char s_rock;
unsigned char s_joliet_level;
unsigned char s_utf8;
unsigned char s_cruft; /* Broken disks with high
byte of length containing
junk */
unsigned char s_unhide;
unsigned char s_nosuid;
unsigned char s_nodev;
unsigned char s_nocompress;
mode_t s_mode;
gid_t s_gid;
uid_t s_uid;
struct nls_table *s_nls_iocharset; /* Native language support table */
};
#endif
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