Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 | #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); |