vtoc.h
上传用户：lgb322
上传日期：2013-02-24
资源大小：30529k
文件大小：12k
- #ifndef __KERNEL__
- #include <string.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <errno.h>
- #include <ctype.h>
- #include <time.h>
- #include <fcntl.h>
- #include <unistd.h>
- #include <sys/stat.h>
- #include <sys/ioctl.h>
- #include <linux/fs.h>
- #include <linux/types.h>
- #include <linux/hdreg.h>
- #include <linux/version.h>
- #include <asm/dasd.h>
- #endif
- #define DASD_API_VERSION 0
- #define LINE_LENGTH 80
- #define VTOC_START_CC 0x0
- #define VTOC_START_HH 0x1
- #define FIRST_USABLE_CYL 1
- #define FIRST_USABLE_TRK 2
- #define DASD_3380_TYPE 13148
- #define DASD_3390_TYPE 13200
- #define DASD_9345_TYPE 37701
- #define DASD_3380_VALUE 0xbb60
- #define DASD_3390_VALUE 0xe5a2
- #define DASD_9345_VALUE 0xbc98
- #define VOLSER_LENGTH 6
- #define BIG_DISK_SIZE 0x10000
- #define VTOC_ERROR "VTOC error:"
- typedef struct ttr
- {
- __u16 tt;
- __u8 r;
- } __attribute__ ((packed)) ttr_t;
- typedef struct cchhb
- {
- __u16 cc;
- __u16 hh;
- __u8 b;
- } __attribute__ ((packed)) cchhb_t;
- typedef struct cchh
- {
- __u16 cc;
- __u16 hh;
- } __attribute__ ((packed)) cchh_t;
- typedef struct labeldate
- {
- __u8 year;
- __u16 day;
- } __attribute__ ((packed)) labeldate_t;
- typedef struct volume_label
- {
- char volkey[4]; /* volume key = volume label */
- char vollbl[4]; /* volume label */
- char volid[6]; /* volume identifier */
- __u8 security; /* security byte */
- cchhb_t vtoc; /* VTOC address */
- char res1[5]; /* reserved */
- char cisize[4]; /* CI-size for FBA,... */
- /* ...blanks for CKD */
- char blkperci[4]; /* no of blocks per CI (FBA), blanks for CKD */
- char labperci[4]; /* no of labels per CI (FBA), blanks for CKD */
- char res2[4]; /* reserved */
- char lvtoc[14]; /* owner code for LVTOC */
- char res3[29]; /* reserved */
- } __attribute__ ((packed)) volume_label_t;
- typedef struct extent
- {
- __u8 typeind; /* extent type indicator */
- __u8 seqno; /* extent sequence number */
- cchh_t llimit; /* starting point of this extent */
- cchh_t ulimit; /* ending point of this extent */
- } __attribute__ ((packed)) extent_t;
- typedef struct dev_const
- {
- __u16 DS4DSCYL; /* number of logical cyls */
- __u16 DS4DSTRK; /* number of tracks in a logical cylinder */
- __u16 DS4DEVTK; /* device track length */
- __u8 DS4DEVI; /* non-last keyed record overhead */
- __u8 DS4DEVL; /* last keyed record overhead */
- __u8 DS4DEVK; /* non-keyed record overhead differential */
- __u8 DS4DEVFG; /* flag byte */
- __u16 DS4DEVTL; /* device tolerance */
- __u8 DS4DEVDT; /* number of DSCB's per track */
- __u8 DS4DEVDB; /* number of directory blocks per track */
- } __attribute__ ((packed)) dev_const_t;
- typedef struct format1_label
- {
- char DS1DSNAM[44]; /* data set name */
- __u8 DS1FMTID; /* format identifier */
- char DS1DSSN[6]; /* data set serial number */
- __u16 DS1VOLSQ; /* volume sequence number */
- labeldate_t DS1CREDT; /* creation date: ydd */
- labeldate_t DS1EXPDT; /* expiration date */
- __u8 DS1NOEPV; /* number of extents on volume */
- __u8 DS1NOBDB; /* no. of bytes used in last direction blk */
- __u8 DS1FLAG1; /* flag 1 */
- char DS1SYSCD[13]; /* system code */
- labeldate_t DS1REFD; /* date last referenced */
- __u8 DS1SMSFG; /* system managed storage indicators */
- __u8 DS1SCXTF; /* sec. space extension flag byte */
- __u16 DS1SCXTV; /* secondary space extension value */
- __u8 DS1DSRG1; /* data set organisation byte 1 */
- __u8 DS1DSRG2; /* data set organisation byte 2 */
- __u8 DS1RECFM; /* record format */
- __u8 DS1OPTCD; /* option code */
- __u16 DS1BLKL; /* block length */
- __u16 DS1LRECL; /* record length */
- __u8 DS1KEYL; /* key length */
- __u16 DS1RKP; /* relative key position */
- __u8 DS1DSIND; /* data set indicators */
- __u8 DS1SCAL1; /* secondary allocation flag byte */
- char DS1SCAL3[3]; /* secondary allocation quantity */
- ttr_t DS1LSTAR; /* last used track and block on track */
- __u16 DS1TRBAL; /* space remaining on last used track */
- __u16 res1; /* reserved */
- extent_t DS1EXT1; /* first extent description */
- extent_t DS1EXT2; /* second extent description */
- extent_t DS1EXT3; /* third extent description */
- cchhb_t DS1PTRDS; /* possible pointer to f2 or f3 DSCB */
- } __attribute__ ((packed)) format1_label_t;
- typedef struct format4_label
- {
- char DS4KEYCD[44]; /* key code for VTOC labels: 44 times 0x04 */
- __u8 DS4IDFMT; /* format identifier */
- cchhb_t DS4HPCHR; /* highest address of a format 1 DSCB */
- __u16 DS4DSREC; /* number of available DSCB's */
- cchh_t DS4HCCHH; /* CCHH of next available alternate track */
- __u16 DS4NOATK; /* number of remaining alternate tracks */
- __u8 DS4VTOCI; /* VTOC indicators */
- __u8 DS4NOEXT; /* number of extents in VTOC */
- __u8 DS4SMSFG; /* system managed storage indicators */
- __u8 DS4DEVAC; /* number of alternate cylinders.
- Subtract from first two bytes of
- DS4DEVSZ to get number of usable
- cylinders. can be zero. valid
- only if DS4DEVAV on. */
- dev_const_t DS4DEVCT; /* device constants */
- char DS4AMTIM[8]; /* VSAM time stamp */
- char DS4AMCAT[3]; /* VSAM catalog indicator */
- char DS4R2TIM[8]; /* VSAM volume/catalog match time stamp */
- char res1[5]; /* reserved */
- char DS4F6PTR[5]; /* pointer to first format 6 DSCB */
- extent_t DS4VTOCE; /* VTOC extent description */
- char res2[10]; /* reserved */
- __u8 DS4EFLVL; /* extended free-space management level */
- cchhb_t DS4EFPTR; /* pointer to extended free-space info */
- char res3[9]; /* reserved */
- } __attribute__ ((packed)) format4_label_t;
- typedef struct ds5ext
- {
- __u16 t; /* RTA of the first track of free extent */
- __u16 fc; /* number of whole cylinders in free ext. */
- __u8 ft; /* number of remaining free tracks */
- } __attribute__ ((packed)) ds5ext_t;
- typedef struct format5_label
- {
- char DS5KEYID[4]; /* key identifier */
- ds5ext_t DS5AVEXT; /* first available (free-space) extent. */
- ds5ext_t DS5EXTAV[7]; /* seven available extents */
- __u8 DS5FMTID; /* format identifier */
- ds5ext_t DS5MAVET[18]; /* eighteen available extents */
- cchhb_t DS5PTRDS; /* pointer to next format5 DSCB */
- } __attribute__ ((packed)) format5_label_t;
- typedef struct ds7ext
- {
- __u32 a; /* starting RTA value */
- __u32 b; /* ending RTA value + 1 */
- } __attribute__ ((packed)) ds7ext_t;
- typedef struct format7_label
- {
- char DS7KEYID[4]; /* key identifier */
- ds7ext_t DS7EXTNT[5]; /* space for 5 extent descriptions */
- __u8 DS7FMTID; /* format identifier */
- ds7ext_t DS7ADEXT[11]; /* space for 11 extent descriptions */
- char res1[2]; /* reserved */
- cchhb_t DS7PTRDS; /* pointer to next FMT7 DSCB */
- } __attribute__ ((packed)) format7_label_t;
- char * vtoc_ebcdic_enc (
- unsigned char source[LINE_LENGTH],
- unsigned char target[LINE_LENGTH],
- int l);
- char * vtoc_ebcdic_dec (
- unsigned char source[LINE_LENGTH],
- unsigned char target[LINE_LENGTH],
- int l);
- void vtoc_set_extent (
- extent_t * ext,
- __u8 typeind,
- __u8 seqno,
- cchh_t * lower,
- cchh_t * upper);
- void vtoc_set_cchh (
- cchh_t * addr,
- __u16 cc,
- __u16 hh);
- void vtoc_set_cchhb (
- cchhb_t * addr,
- __u16 cc,
- __u16 hh,
- __u8 b);
- void vtoc_set_date (
- labeldate_t * d,
- __u8 year,
- __u16 day);
- void vtoc_volume_label_init (
- volume_label_t *vlabel);
- int vtoc_read_volume_label (
- char * device,
- unsigned long vlabel_start,
- volume_label_t * vlabel);
- int vtoc_write_volume_label (
- char *device,
- unsigned long vlabel_start,
- volume_label_t *vlabel);
- void vtoc_volume_label_set_volser (
- volume_label_t *vlabel,
- char *volser);
- char *vtoc_volume_label_get_volser (
- volume_label_t *vlabel,
- char *volser);
- void vtoc_volume_label_set_key (
- volume_label_t *vlabel,
- char *key);
- void vtoc_volume_label_set_label (
- volume_label_t *vlabel,
- char *lbl);
- char *vtoc_volume_label_get_label (
- volume_label_t *vlabel,
- char *lbl);
- void vtoc_read_label (
- char *device,
- unsigned long position,
- format1_label_t *f1,
- format4_label_t *f4,
- format5_label_t *f5,
- format7_label_t *f7);
- void vtoc_write_label (
- char *device,
- unsigned long position,
- format1_label_t *f1,
- format4_label_t *f4,
- format5_label_t *f5,
- format7_label_t *f7);
- void vtoc_init_format1_label (
- char *volid,
- unsigned int blksize,
- extent_t *part_extent,
- format1_label_t *f1);
- void vtoc_init_format4_label (
- format4_label_t *f4lbl,
- unsigned int usable_partitions,
- unsigned int cylinders,
- unsigned int tracks,
- unsigned int blocks,
- unsigned int blksize,
- __u16 dev_type);
- void vtoc_update_format4_label (
- format4_label_t *f4,
- cchhb_t *highest_f1,
- __u16 unused_update);
- void vtoc_init_format5_label (
- format5_label_t *f5);
- void vtoc_update_format5_label_add (
- format5_label_t *f5,
- int verbose,
- int cyl,
- int trk,
- __u16 a,
- __u16 b,
- __u8 c);
-
- void vtoc_update_format5_label_del (
- format5_label_t *f5,
- int verbose,
- int cyl,
- int trk,
- __u16 a,
- __u16 b,
- __u8 c);
- void vtoc_init_format7_label (
- format7_label_t *f7);
- void vtoc_update_format7_label_add (
- format7_label_t *f7,
- int verbose,
- __u32 a,
- __u32 b);
- void vtoc_update_format7_label_del (
- format7_label_t *f7,
- int verbose,
- __u32 a,
- __u32 b);
- void vtoc_set_freespace(
- format4_label_t *f4,
- format5_label_t *f5,
- format7_label_t *f7,
- char ch,
- int verbose,
- __u32 start,
- __u32 stop,
- int cyl,
- int trk);
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