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1da177e4 LT |
1 | #ifndef __KERNEL__ |
2 | #include <string.h> | |
3 | #include <stdlib.h> | |
4 | #include <stdio.h> | |
5 | #include <errno.h> | |
6 | #include <ctype.h> | |
7 | #include <time.h> | |
8 | #include <fcntl.h> | |
9 | #include <unistd.h> | |
10 | ||
11 | #include <sys/stat.h> | |
12 | #include <sys/ioctl.h> | |
13 | ||
14 | #include <linux/fs.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/hdreg.h> | |
17 | #include <asm/dasd.h> | |
18 | #endif | |
19 | ||
20 | ||
21 | #define LINE_LENGTH 80 | |
22 | #define VTOC_START_CC 0x0 | |
23 | #define VTOC_START_HH 0x1 | |
24 | #define FIRST_USABLE_CYL 1 | |
25 | #define FIRST_USABLE_TRK 2 | |
26 | ||
27 | #define DASD_3380_TYPE 13148 | |
28 | #define DASD_3390_TYPE 13200 | |
29 | #define DASD_9345_TYPE 37701 | |
30 | ||
31 | #define DASD_3380_VALUE 0xbb60 | |
32 | #define DASD_3390_VALUE 0xe5a2 | |
33 | #define DASD_9345_VALUE 0xbc98 | |
34 | ||
35 | #define VOLSER_LENGTH 6 | |
36 | #define BIG_DISK_SIZE 0x10000 | |
37 | ||
38 | #define VTOC_ERROR "VTOC error:" | |
39 | ||
40 | ||
41 | typedef struct ttr | |
42 | { | |
43 | __u16 tt; | |
44 | __u8 r; | |
45 | } __attribute__ ((packed)) ttr_t; | |
46 | ||
47 | typedef struct cchhb | |
48 | { | |
49 | __u16 cc; | |
50 | __u16 hh; | |
51 | __u8 b; | |
52 | } __attribute__ ((packed)) cchhb_t; | |
53 | ||
54 | typedef struct cchh | |
55 | { | |
56 | __u16 cc; | |
57 | __u16 hh; | |
58 | } __attribute__ ((packed)) cchh_t; | |
59 | ||
60 | typedef struct labeldate | |
61 | { | |
62 | __u8 year; | |
63 | __u16 day; | |
64 | } __attribute__ ((packed)) labeldate_t; | |
65 | ||
66 | ||
67 | typedef struct volume_label | |
68 | { | |
69 | char volkey[4]; /* volume key = volume label */ | |
70 | char vollbl[4]; /* volume label */ | |
71 | char volid[6]; /* volume identifier */ | |
72 | __u8 security; /* security byte */ | |
73 | cchhb_t vtoc; /* VTOC address */ | |
74 | char res1[5]; /* reserved */ | |
75 | char cisize[4]; /* CI-size for FBA,... */ | |
76 | /* ...blanks for CKD */ | |
77 | char blkperci[4]; /* no of blocks per CI (FBA), blanks for CKD */ | |
78 | char labperci[4]; /* no of labels per CI (FBA), blanks for CKD */ | |
79 | char res2[4]; /* reserved */ | |
80 | char lvtoc[14]; /* owner code for LVTOC */ | |
81 | char res3[29]; /* reserved */ | |
82 | } __attribute__ ((packed)) volume_label_t; | |
83 | ||
84 | ||
85 | typedef struct extent | |
86 | { | |
87 | __u8 typeind; /* extent type indicator */ | |
88 | __u8 seqno; /* extent sequence number */ | |
89 | cchh_t llimit; /* starting point of this extent */ | |
90 | cchh_t ulimit; /* ending point of this extent */ | |
91 | } __attribute__ ((packed)) extent_t; | |
92 | ||
93 | ||
94 | typedef struct dev_const | |
95 | { | |
96 | __u16 DS4DSCYL; /* number of logical cyls */ | |
97 | __u16 DS4DSTRK; /* number of tracks in a logical cylinder */ | |
98 | __u16 DS4DEVTK; /* device track length */ | |
99 | __u8 DS4DEVI; /* non-last keyed record overhead */ | |
100 | __u8 DS4DEVL; /* last keyed record overhead */ | |
101 | __u8 DS4DEVK; /* non-keyed record overhead differential */ | |
102 | __u8 DS4DEVFG; /* flag byte */ | |
103 | __u16 DS4DEVTL; /* device tolerance */ | |
104 | __u8 DS4DEVDT; /* number of DSCB's per track */ | |
105 | __u8 DS4DEVDB; /* number of directory blocks per track */ | |
106 | } __attribute__ ((packed)) dev_const_t; | |
107 | ||
108 | ||
109 | typedef struct format1_label | |
110 | { | |
111 | char DS1DSNAM[44]; /* data set name */ | |
112 | __u8 DS1FMTID; /* format identifier */ | |
113 | char DS1DSSN[6]; /* data set serial number */ | |
114 | __u16 DS1VOLSQ; /* volume sequence number */ | |
115 | labeldate_t DS1CREDT; /* creation date: ydd */ | |
116 | labeldate_t DS1EXPDT; /* expiration date */ | |
117 | __u8 DS1NOEPV; /* number of extents on volume */ | |
118 | __u8 DS1NOBDB; /* no. of bytes used in last direction blk */ | |
119 | __u8 DS1FLAG1; /* flag 1 */ | |
120 | char DS1SYSCD[13]; /* system code */ | |
121 | labeldate_t DS1REFD; /* date last referenced */ | |
122 | __u8 DS1SMSFG; /* system managed storage indicators */ | |
123 | __u8 DS1SCXTF; /* sec. space extension flag byte */ | |
124 | __u16 DS1SCXTV; /* secondary space extension value */ | |
125 | __u8 DS1DSRG1; /* data set organisation byte 1 */ | |
126 | __u8 DS1DSRG2; /* data set organisation byte 2 */ | |
127 | __u8 DS1RECFM; /* record format */ | |
128 | __u8 DS1OPTCD; /* option code */ | |
129 | __u16 DS1BLKL; /* block length */ | |
130 | __u16 DS1LRECL; /* record length */ | |
131 | __u8 DS1KEYL; /* key length */ | |
132 | __u16 DS1RKP; /* relative key position */ | |
133 | __u8 DS1DSIND; /* data set indicators */ | |
134 | __u8 DS1SCAL1; /* secondary allocation flag byte */ | |
135 | char DS1SCAL3[3]; /* secondary allocation quantity */ | |
136 | ttr_t DS1LSTAR; /* last used track and block on track */ | |
137 | __u16 DS1TRBAL; /* space remaining on last used track */ | |
138 | __u16 res1; /* reserved */ | |
139 | extent_t DS1EXT1; /* first extent description */ | |
140 | extent_t DS1EXT2; /* second extent description */ | |
141 | extent_t DS1EXT3; /* third extent description */ | |
142 | cchhb_t DS1PTRDS; /* possible pointer to f2 or f3 DSCB */ | |
143 | } __attribute__ ((packed)) format1_label_t; | |
144 | ||
145 | ||
146 | typedef struct format4_label | |
147 | { | |
148 | char DS4KEYCD[44]; /* key code for VTOC labels: 44 times 0x04 */ | |
149 | __u8 DS4IDFMT; /* format identifier */ | |
150 | cchhb_t DS4HPCHR; /* highest address of a format 1 DSCB */ | |
151 | __u16 DS4DSREC; /* number of available DSCB's */ | |
152 | cchh_t DS4HCCHH; /* CCHH of next available alternate track */ | |
153 | __u16 DS4NOATK; /* number of remaining alternate tracks */ | |
154 | __u8 DS4VTOCI; /* VTOC indicators */ | |
155 | __u8 DS4NOEXT; /* number of extents in VTOC */ | |
156 | __u8 DS4SMSFG; /* system managed storage indicators */ | |
157 | __u8 DS4DEVAC; /* number of alternate cylinders. | |
158 | Subtract from first two bytes of | |
159 | DS4DEVSZ to get number of usable | |
160 | cylinders. can be zero. valid | |
161 | only if DS4DEVAV on. */ | |
162 | dev_const_t DS4DEVCT; /* device constants */ | |
163 | char DS4AMTIM[8]; /* VSAM time stamp */ | |
164 | char DS4AMCAT[3]; /* VSAM catalog indicator */ | |
165 | char DS4R2TIM[8]; /* VSAM volume/catalog match time stamp */ | |
166 | char res1[5]; /* reserved */ | |
167 | char DS4F6PTR[5]; /* pointer to first format 6 DSCB */ | |
168 | extent_t DS4VTOCE; /* VTOC extent description */ | |
169 | char res2[10]; /* reserved */ | |
170 | __u8 DS4EFLVL; /* extended free-space management level */ | |
171 | cchhb_t DS4EFPTR; /* pointer to extended free-space info */ | |
172 | char res3[9]; /* reserved */ | |
173 | } __attribute__ ((packed)) format4_label_t; | |
174 | ||
175 | ||
176 | typedef struct ds5ext | |
177 | { | |
178 | __u16 t; /* RTA of the first track of free extent */ | |
179 | __u16 fc; /* number of whole cylinders in free ext. */ | |
180 | __u8 ft; /* number of remaining free tracks */ | |
181 | } __attribute__ ((packed)) ds5ext_t; | |
182 | ||
183 | ||
184 | typedef struct format5_label | |
185 | { | |
186 | char DS5KEYID[4]; /* key identifier */ | |
187 | ds5ext_t DS5AVEXT; /* first available (free-space) extent. */ | |
188 | ds5ext_t DS5EXTAV[7]; /* seven available extents */ | |
189 | __u8 DS5FMTID; /* format identifier */ | |
190 | ds5ext_t DS5MAVET[18]; /* eighteen available extents */ | |
191 | cchhb_t DS5PTRDS; /* pointer to next format5 DSCB */ | |
192 | } __attribute__ ((packed)) format5_label_t; | |
193 | ||
194 | ||
195 | typedef struct ds7ext | |
196 | { | |
197 | __u32 a; /* starting RTA value */ | |
198 | __u32 b; /* ending RTA value + 1 */ | |
199 | } __attribute__ ((packed)) ds7ext_t; | |
200 | ||
201 | ||
202 | typedef struct format7_label | |
203 | { | |
204 | char DS7KEYID[4]; /* key identifier */ | |
205 | ds7ext_t DS7EXTNT[5]; /* space for 5 extent descriptions */ | |
206 | __u8 DS7FMTID; /* format identifier */ | |
207 | ds7ext_t DS7ADEXT[11]; /* space for 11 extent descriptions */ | |
208 | char res1[2]; /* reserved */ | |
209 | cchhb_t DS7PTRDS; /* pointer to next FMT7 DSCB */ | |
210 | } __attribute__ ((packed)) format7_label_t; | |
211 | ||
212 | ||
213 | char * vtoc_ebcdic_enc ( | |
214 | unsigned char source[LINE_LENGTH], | |
215 | unsigned char target[LINE_LENGTH], | |
216 | int l); | |
217 | char * vtoc_ebcdic_dec ( | |
218 | unsigned char source[LINE_LENGTH], | |
219 | unsigned char target[LINE_LENGTH], | |
220 | int l); | |
221 | void vtoc_set_extent ( | |
222 | extent_t * ext, | |
223 | __u8 typeind, | |
224 | __u8 seqno, | |
225 | cchh_t * lower, | |
226 | cchh_t * upper); | |
227 | void vtoc_set_cchh ( | |
228 | cchh_t * addr, | |
229 | __u16 cc, | |
230 | __u16 hh); | |
231 | void vtoc_set_cchhb ( | |
232 | cchhb_t * addr, | |
233 | __u16 cc, | |
234 | __u16 hh, | |
235 | __u8 b); | |
236 | void vtoc_set_date ( | |
237 | labeldate_t * d, | |
238 | __u8 year, | |
239 | __u16 day); | |
240 | ||
241 | void vtoc_volume_label_init ( | |
242 | volume_label_t *vlabel); | |
243 | ||
244 | int vtoc_read_volume_label ( | |
245 | char * device, | |
246 | unsigned long vlabel_start, | |
247 | volume_label_t * vlabel); | |
248 | ||
249 | int vtoc_write_volume_label ( | |
250 | char *device, | |
251 | unsigned long vlabel_start, | |
252 | volume_label_t *vlabel); | |
253 | ||
254 | void vtoc_volume_label_set_volser ( | |
255 | volume_label_t *vlabel, | |
256 | char *volser); | |
257 | ||
258 | char *vtoc_volume_label_get_volser ( | |
259 | volume_label_t *vlabel, | |
260 | char *volser); | |
261 | ||
262 | void vtoc_volume_label_set_key ( | |
263 | volume_label_t *vlabel, | |
264 | char *key); | |
265 | ||
266 | void vtoc_volume_label_set_label ( | |
267 | volume_label_t *vlabel, | |
268 | char *lbl); | |
269 | ||
270 | char *vtoc_volume_label_get_label ( | |
271 | volume_label_t *vlabel, | |
272 | char *lbl); | |
273 | ||
274 | void vtoc_read_label ( | |
275 | char *device, | |
276 | unsigned long position, | |
277 | format1_label_t *f1, | |
278 | format4_label_t *f4, | |
279 | format5_label_t *f5, | |
280 | format7_label_t *f7); | |
281 | ||
282 | void vtoc_write_label ( | |
283 | char *device, | |
284 | unsigned long position, | |
285 | format1_label_t *f1, | |
286 | format4_label_t *f4, | |
287 | format5_label_t *f5, | |
288 | format7_label_t *f7); | |
289 | ||
290 | ||
291 | void vtoc_init_format1_label ( | |
292 | char *volid, | |
293 | unsigned int blksize, | |
294 | extent_t *part_extent, | |
295 | format1_label_t *f1); | |
296 | ||
297 | ||
298 | void vtoc_init_format4_label ( | |
299 | format4_label_t *f4lbl, | |
300 | unsigned int usable_partitions, | |
301 | unsigned int cylinders, | |
302 | unsigned int tracks, | |
303 | unsigned int blocks, | |
304 | unsigned int blksize, | |
305 | __u16 dev_type); | |
306 | ||
307 | void vtoc_update_format4_label ( | |
308 | format4_label_t *f4, | |
309 | cchhb_t *highest_f1, | |
310 | __u16 unused_update); | |
311 | ||
312 | ||
313 | void vtoc_init_format5_label ( | |
314 | format5_label_t *f5); | |
315 | ||
316 | void vtoc_update_format5_label_add ( | |
317 | format5_label_t *f5, | |
318 | int verbose, | |
319 | int cyl, | |
320 | int trk, | |
321 | __u16 a, | |
322 | __u16 b, | |
323 | __u8 c); | |
324 | ||
325 | void vtoc_update_format5_label_del ( | |
326 | format5_label_t *f5, | |
327 | int verbose, | |
328 | int cyl, | |
329 | int trk, | |
330 | __u16 a, | |
331 | __u16 b, | |
332 | __u8 c); | |
333 | ||
334 | ||
335 | void vtoc_init_format7_label ( | |
336 | format7_label_t *f7); | |
337 | ||
338 | void vtoc_update_format7_label_add ( | |
339 | format7_label_t *f7, | |
340 | int verbose, | |
341 | __u32 a, | |
342 | __u32 b); | |
343 | ||
344 | void vtoc_update_format7_label_del ( | |
345 | format7_label_t *f7, | |
346 | int verbose, | |
347 | __u32 a, | |
348 | __u32 b); | |
349 | ||
350 | ||
351 | void vtoc_set_freespace( | |
352 | format4_label_t *f4, | |
353 | format5_label_t *f5, | |
354 | format7_label_t *f7, | |
355 | char ch, | |
356 | int verbose, | |
357 | __u32 start, | |
358 | __u32 stop, | |
359 | int cyl, | |
360 | int trk); | |
361 | ||
362 | ||
363 | ||
364 | ||
365 | ||
366 | ||
367 | ||
368 | ||
369 | ||
370 | ||
371 | ||
372 |