mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
60448b1d6d
Use sector_t and loff_t for file offsets in UDF filesystem. Otherwise an overflow may occur for long files. Also make inode_bmap() return offset in the extent in number of blocks instead of number of bytes - for most callers this is more convenient. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
166 lines
6.5 KiB
C
166 lines
6.5 KiB
C
#ifndef __UDF_DECL_H
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#define __UDF_DECL_H
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#include <linux/udf_fs.h>
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#include "ecma_167.h"
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#include "osta_udf.h"
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <linux/udf_fs_i.h>
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#include <linux/udf_fs_sb.h>
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#include <linux/buffer_head.h>
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#include "udfend.h"
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#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
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#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
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#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
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#define UDF_EXTENT_FLAG_MASK 0xC0000000
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#define UDF_NAME_PAD 4
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#define UDF_NAME_LEN 256
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#define UDF_PATH_LEN 1023
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#define udf_file_entry_alloc_offset(inode)\
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(UDF_I_USE(inode) ?\
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sizeof(struct unallocSpaceEntry) :\
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((UDF_I_EFE(inode) ?\
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sizeof(struct extendedFileEntry) :\
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sizeof(struct fileEntry)) + UDF_I_LENEATTR(inode)))
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#define udf_ext0_offset(inode)\
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(UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ?\
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udf_file_entry_alloc_offset(inode) : 0)
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#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
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struct dentry;
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struct inode;
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struct task_struct;
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struct buffer_head;
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struct super_block;
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extern const struct inode_operations udf_dir_inode_operations;
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extern const struct file_operations udf_dir_operations;
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extern const struct inode_operations udf_file_inode_operations;
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extern const struct file_operations udf_file_operations;
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extern const struct address_space_operations udf_aops;
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extern const struct address_space_operations udf_adinicb_aops;
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extern const struct address_space_operations udf_symlink_aops;
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struct udf_fileident_bh
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{
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struct buffer_head *sbh;
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struct buffer_head *ebh;
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int soffset;
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int eoffset;
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};
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struct udf_vds_record
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{
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uint32_t block;
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uint32_t volDescSeqNum;
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};
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struct generic_desc
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{
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tag descTag;
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__le32 volDescSeqNum;
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};
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struct ustr
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{
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uint8_t u_cmpID;
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uint8_t u_name[UDF_NAME_LEN-2];
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uint8_t u_len;
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};
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/* super.c */
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extern void udf_error(struct super_block *, const char *, const char *, ...);
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extern void udf_warning(struct super_block *, const char *, const char *, ...);
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/* namei.c */
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extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, struct fileIdentDesc *, struct udf_fileident_bh *, uint8_t *, uint8_t *);
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/* file.c */
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extern int udf_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
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/* inode.c */
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extern struct inode *udf_iget(struct super_block *, kernel_lb_addr);
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extern int udf_sync_inode(struct inode *);
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extern void udf_expand_file_adinicb(struct inode *, int, int *);
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extern struct buffer_head * udf_expand_dir_adinicb(struct inode *, int *, int *);
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extern struct buffer_head * udf_bread(struct inode *, int, int, int *);
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extern void udf_truncate(struct inode *);
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extern void udf_read_inode(struct inode *);
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extern void udf_delete_inode(struct inode *);
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extern void udf_clear_inode(struct inode *);
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extern int udf_write_inode(struct inode *, int);
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extern long udf_block_map(struct inode *, sector_t);
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extern int8_t inode_bmap(struct inode *, sector_t, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, sector_t *, struct buffer_head **);
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extern int8_t udf_add_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr, uint32_t, struct buffer_head **, int);
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extern int8_t udf_write_aext(struct inode *, kernel_lb_addr, int *, kernel_lb_addr, uint32_t, struct buffer_head *, int);
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extern int8_t udf_delete_aext(struct inode *, kernel_lb_addr, int, kernel_lb_addr, uint32_t, struct buffer_head *);
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extern int8_t udf_next_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
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extern int8_t udf_current_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
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/* misc.c */
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extern struct buffer_head *udf_tgetblk(struct super_block *, int);
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extern struct buffer_head *udf_tread(struct super_block *, int);
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extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, uint32_t, uint8_t);
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extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, uint8_t);
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extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, uint32_t, uint16_t *);
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extern struct buffer_head *udf_read_ptagged(struct super_block *, kernel_lb_addr, uint32_t, uint16_t *);
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extern void udf_release_data(struct buffer_head *);
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extern void udf_update_tag(char *, int);
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extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
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/* lowlevel.c */
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extern unsigned int udf_get_last_session(struct super_block *);
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extern unsigned long udf_get_last_block(struct super_block *);
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/* partition.c */
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extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, uint32_t);
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extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, uint32_t);
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extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, uint32_t);
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extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, uint32_t);
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extern int udf_relocate_blocks(struct super_block *, long, long *);
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/* unicode.c */
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extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
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extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, int);
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extern int udf_build_ustr(struct ustr *, dstring *, int);
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extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
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/* ialloc.c */
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extern void udf_free_inode(struct inode *);
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extern struct inode * udf_new_inode (struct inode *, int, int *);
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/* truncate.c */
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extern void udf_discard_prealloc(struct inode *);
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extern void udf_truncate_extents(struct inode *);
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/* balloc.c */
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extern void udf_free_blocks(struct super_block *, struct inode *, kernel_lb_addr, uint32_t, uint32_t);
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extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, uint32_t, uint32_t);
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extern int udf_new_block(struct super_block *, struct inode *, uint16_t, uint32_t, int *);
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/* fsync.c */
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extern int udf_fsync_file(struct file *, struct dentry *, int);
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/* directory.c */
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extern struct fileIdentDesc * udf_fileident_read(struct inode *, loff_t *, struct udf_fileident_bh *, struct fileIdentDesc *, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, sector_t *, struct buffer_head **);
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extern struct fileIdentDesc * udf_get_fileident(void * buffer, int bufsize, int * offset);
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extern long_ad * udf_get_filelongad(uint8_t *, int, int *, int);
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extern short_ad * udf_get_fileshortad(uint8_t *, int, int *, int);
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/* crc.c */
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extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
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/* udftime.c */
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extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
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extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);
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#endif /* __UDF_DECL_H */
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