373 lines
12 KiB
C
373 lines
12 KiB
C
|
#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 <asm/dasd.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#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);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|