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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390/] [vtoc.h] - Rev 1765
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#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 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);