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[AROS.git] / rom / partition / partitionrdb.c
blobbf32c4bdf9d67cc5ba17f364a1194551c8188ecf
1 /*
2 Copyright © 1995-2013, The AROS Development Team. All rights reserved.
3 $Id$
4
5 */
6
7 #define RDB_WRITE 1
8
9 #include <aros/config.h>
10 #include <proto/dos.h>
11 #include <proto/exec.h>
12 #include <proto/partition.h>
13 #include <proto/utility.h>
14
15 #include <devices/hardblocks.h>
16 #include <exec/memory.h>
17 #include <exec/types.h>
18 #include <libraries/partition.h>
19 #include <resources/filesysres.h>
20
21 #include "partition_support.h"
22 #include "platform.h"
23
24 #ifndef DEBUG
25 #define DEBUG 1
26 #endif
27 #include "debug.h"
28
29 #include <string.h>
30
31 struct RDBData {
32 struct RigidDiskBlock rdb;
33 UBYTE rdbblock; /* the block rdb was read from */
34 struct List badblocklist;
35 struct List fsheaderlist;
36 };
37
38 struct BadBlockNode {
39 struct Node ln;
40 struct BadBlockBlock bbb;
41 };
42
43 struct FileSysNode
44 {
45 struct FileSysHandle h;
46
47 struct FileSysHeaderBlock fhb;
48 struct LoadSegBlock *filesystem; /* the FS in LSEG blocks */
49 ULONG fsblocks; /* nr of LSEG blocks for FS */
50 };
51
52 #define LSEGDATASIZE (123 * sizeof(ULONG))
53
54 struct FileSysReader
55 {
56 ULONG count;
57 ULONG offset;
58 ULONG size;
59 struct FileSysNode *fsn;
60 };
61
62 static AROS_UFH4(LONG, ReadFunc,
63 AROS_UFHA(BPTR, file, D1),
64 AROS_UFHA(APTR, buffer, D2),
65 AROS_UFHA(LONG, length, D3),
66 AROS_UFHA(struct Library *, DOSBase, A6))
67 {
68 AROS_USERFUNC_INIT
69
70 struct FileSysReader *fsr = (struct FileSysReader*)file;
71 ULONG outsize = 0;
72 UBYTE *outbuf = buffer;
73
74 while (length > 0) {
75 ULONG size = length;
76
77 if (size + fsr->offset > fsr->size)
78 size = fsr->size - fsr->offset;
79 if (size > 0) {
80 UBYTE *inbuf = (UBYTE*)(fsr->fsn->filesystem[fsr->count].lsb_LoadData) + fsr->offset;
81 CopyMem(inbuf, outbuf, size);
82 }
83
84 outsize += size;
85 fsr->offset += size;
86 length -= size;
87 outbuf += size;
88
89 if (fsr->offset == fsr->size) {
90 fsr->offset = 0;
91 fsr->count++;
92 if (fsr->count == fsr->fsn->fsblocks)
93 break;
94 }
95
96 }
97
98 return outsize;
99
100 AROS_USERFUNC_EXIT
101 }
102
103 static AROS_UFH4(LONG, SeekFunc,
104 AROS_UFHA(BPTR, file, D1),
105 AROS_UFHA(LONG, pos, D2),
106 AROS_UFHA(LONG, mode, D3),
107 AROS_UFHA(struct Library *, DOSBase, A6))
108 {
109 AROS_USERFUNC_INIT
110
111 struct FileSysReader *fsr = (struct FileSysReader*)file;
112 LONG oldpos = fsr->offset;
113
114 switch (mode) {
115 case OFFSET_BEGINNING: break;
116 case OFFSET_END: pos = fsr->size - pos; break;
117 case OFFSET_CURRENT: pos = fsr->offset + pos; break;
118 default: return -1;
119 }
120
121 if (pos < 0 || pos >= fsr->size)
122 return -1;
123
124 fsr->offset = pos;
125
126 return oldpos;
127
128 AROS_USERFUNC_EXIT
129 }
130
131 /* Load a filesystem into DOS seglist */
132 static BPTR LoadFS(struct FileSysNode *node, struct DosLibrary *DOSBase)
133 {
134 LONG_FUNC FunctionArray[4];
135 struct FileSysReader fakefile;
136
137 #ifndef __mc68000
138 /* Prevent loading hunk files on non-m68k */
139 if (AROS_BE2LONG(node->filesystem[0].lsb_LoadData[0]) == 0x000003f3)
140 return BNULL;
141 #endif
142
143 FunctionArray[0] = (LONG_FUNC)ReadFunc;
144 FunctionArray[1] = (LONG_FUNC)__AROS_GETVECADDR(SysBase,33); /* AllocMem() */
145 FunctionArray[2] = (LONG_FUNC)__AROS_GETVECADDR(SysBase,35); /* FreeMem() */
146 FunctionArray[3] = (LONG_FUNC)SeekFunc;
147
148 /* Initialize our stream */
149 fakefile.count = 0;
150 fakefile.offset = 0;
151 fakefile.size = LSEGDATASIZE;
152 fakefile.fsn = node;
153
154 /* InternalLoadSeg((BPTR)&fakefile, BNULL, FunctionArray, NULL);
155 * with A6 = NULL. Check internalloadseg.c for more information
156 */
157
158 return AROS_CALL4(BPTR, __AROS_GETVECADDR(DOSBase, 126),
159 AROS_LCA(BPTR, (BPTR)&fakefile, D0),
160 AROS_LCA(BPTR, BNULL, A0),
161 AROS_LCA(LONG_FUNC*, FunctionArray, A1),
162 AROS_LCA(LONG*, NULL, A2),
163 struct Library*, NULL);
164 }
165
166 static ULONG calcChkSum(ULONG *ptr, ULONG size)
167 {
168 ULONG i;
169 ULONG sum=0;
170
171 for (i=0;i<size;i++)
172 {
173 sum += AROS_BE2LONG(*ptr);
174 ptr++;
175 }
176 return sum;
177 }
178
179 LONG PartitionRDBCheckPartitionTable
180 (
181 struct Library *PartitionBase,
182 struct PartitionHandle *root
183 )
184 {
185 UBYTE i;
186 struct RigidDiskBlock *rdb = (struct RigidDiskBlock *)root->buffer;
187 struct PartitionType type;
188 struct TagItem tags[] = {{PT_TYPE, (IPTR)&type}, {TAG_DONE, 0}};
189
190 if (sizeof(root->buffer) < (root->de.de_SizeBlock << 2))
191 return 0;
192
193 if (root->root != NULL)
194 {
195 GetPartitionAttrs(root, tags);
196 if (
197 (root->root->table->type != PHPTT_MBR &&
198 root->root->table->type != PHPTT_EBR) ||
199 (type.id[0] != 0x30 && type.id[0] != 0x76)
200 )
201 {
202 return 0;
203 }
204 }
205 for (i=0;i<RDB_LOCATION_LIMIT; i++)
206 {
207 if (readBlock(PartitionBase, root, i, rdb) != 0)
208 return 0;
209 if (rdb->rdb_ID == AROS_BE2LONG(IDNAME_RIGIDDISK))
210 break;
211 }
212 if (i != RDB_LOCATION_LIMIT)
213 {
214 if (calcChkSum((ULONG *)rdb, AROS_BE2LONG(rdb->rdb_SummedLongs))==0)
215 return 1;
216 }
217 return 0;
218 }
219
220 void CopyBE2HostDosEnvec(LONG *src, SIPTR *dst, ULONG size) {
221 ULONG count=0;
222
223 while (count != size)
224 {
225 *dst++ = AROS_BE2LONG(*src);
226 src++;
227 count++;
228 }
229 }
230
231 void CopyHost2BEDosEnvec(SIPTR *src, ULONG *dst, ULONG size) {
232
233 ULONG count=0;
234
235 while (count != size)
236 {
237 *dst++ = AROS_LONG2BE(*src);
238 src++;
239 count++;
240 }
241
242 }
243
244 struct BadBlockNode *PartitionRDBNewBadBlock
245 (
246 struct Library *PartitionBase,
247 struct PartitionHandle *root,
248 struct BadBlockBlock *buffer
249 )
250 {
251 struct BadBlockNode *bn;
252
253 if (
254 (AROS_BE2LONG(buffer->bbb_ID) == IDNAME_BADBLOCK) &&
255 (calcChkSum((ULONG *)buffer, AROS_BE2LONG(buffer->bbb_SummedLongs))==0)
256 )
257 {
258 bn = AllocMem(sizeof(struct BadBlockNode), MEMF_PUBLIC | MEMF_CLEAR);
259 if (bn)
260 {
261 CopyMem(buffer, &bn->bbb, sizeof(struct BadBlockBlock));
262 return bn;
263 }
264 }
265 return NULL;
266 }
267
268 struct PartitionHandle *PartitionRDBNewHandle
269 (
270 struct Library *PartitionBase,
271 struct PartitionHandle *root,
272 struct PartitionBlock *buffer
273 )
274 {
275 struct PartitionBlock *pblock;
276 struct PartitionHandle *ph;
277
278 if (
279 (AROS_BE2LONG(buffer->pb_ID) == IDNAME_PARTITION) &&
280 (calcChkSum((ULONG *)buffer, AROS_BE2LONG(buffer->pb_SummedLongs))==0)
281 )
282 {
283 ph = AllocMem(sizeof(struct PartitionHandle), MEMF_PUBLIC | MEMF_CLEAR);
284 if (ph)
285 {
286 ph->ln.ln_Name = AllocVec(32, MEMF_PUBLIC | MEMF_CLEAR);
287 if (ph->ln.ln_Name)
288 {
289 pblock = AllocMem(sizeof(struct PartitionBlock), MEMF_PUBLIC);
290 if (pblock)
291 {
292 CopyMem(buffer, pblock, sizeof(struct PartitionBlock));
293 ph->root = root;
294 ph->bd = root->bd;
295 ph->data = pblock;
296 CopyMem(pblock->pb_DriveName+1, ph->ln.ln_Name, pblock->pb_DriveName[0]);
297 ph->ln.ln_Name[pblock->pb_DriveName[0]]=0;
298 CopyBE2HostDosEnvec(pblock->pb_Environment, (SIPTR *)&ph->de, AROS_BE2LONG(pblock->pb_Environment[DE_TABLESIZE])+1);
299 ph->dg.dg_DeviceType = DG_DIRECT_ACCESS;
300 ph->dg.dg_SectorSize = ph->de.de_SizeBlock<<2;
301 ph->dg.dg_Heads = ph->de.de_Surfaces;
302 ph->dg.dg_TrackSectors = ph->de.de_BlocksPerTrack;
303 ph->dg.dg_Cylinders = ph->de.de_HighCyl - ph->de.de_LowCyl + 1;
304 ph->dg.dg_BufMemType = ph->de.de_BufMemType;
305 return ph;
306 }
307 FreeVec(ph->ln.ln_Name);
308 }
309 FreeMem(ph, sizeof(struct PartitionHandle));
310 }
311 }
312 return NULL;
313 }
314
315 struct FileSysNode *PartitionRDBNewFileSys
316 (
317 struct Library *PartitionBase,
318 struct PartitionHandle *root,
319 struct FileSysHeaderBlock *buffer
320 )
321 {
322 struct FileSysNode *fn;
323
324 if (
325 (AROS_BE2LONG(buffer->fhb_ID) == IDNAME_FILESYSHEADER) &&
326 (calcChkSum((ULONG *)buffer, AROS_BE2LONG(buffer->fhb_SummedLongs))==0)
327 )
328 {
329 fn = AllocMem(sizeof(struct FileSysNode), MEMF_PUBLIC | MEMF_CLEAR);
330 if (fn)
331 {
332 CopyMem(buffer, &fn->fhb, sizeof(struct FileSysHeaderBlock));
333
334 /* Fill in common part of the handle */
335 fn->h.ln.ln_Name = fn->fhb.fhb_FileSysName;
336 fn->h.ln.ln_Pri = 0;
337 fn->h.handler = &FilesystemRDB;
338
339 return fn;
340 }
341 }
342 return NULL;
343 }
344
345 static void PartitionRDBFreeFileSystem(struct FileSysHandle *fsh)
346 {
347 struct FileSysNode *fn = (struct FileSysNode *)fsh;
348
349 FreeVec(fn->filesystem);
350 FreeMem(fn, sizeof(struct FileSysNode));
351 }
352
353 ULONG PartitionRDBCalcFSSize
354 (
355 struct Library *PartitionBase,
356 struct PartitionHandle *root,
357 struct FileSysNode *fn,
358 struct LoadSegBlock *buffer
359 )
360 {
361 ULONG size;
362 ULONG block;
363
364 size = 0;
365 block = AROS_BE2LONG(fn->fhb.fhb_SegListBlocks);
366 while (block != (ULONG)-1)
367 {
368 size++;
369 if (readBlock(PartitionBase, root, block, buffer) !=0)
370 return 0;
371 if (
372 (AROS_BE2LONG(buffer->lsb_ID) != IDNAME_LOADSEG) ||
373 (calcChkSum((ULONG *)buffer, AROS_BE2LONG(buffer->lsb_SummedLongs)))
374 )
375 return 0;
376 block = AROS_BE2LONG(buffer->lsb_Next);
377 }
378 return size;
379 }
380
381 void PartitionRDBReadFileSys
382 (
383 struct Library *PartitionBase,
384 struct PartitionHandle *root,
385 struct FileSysNode *fn,
386 struct LoadSegBlock *buffer
387 )
388 {
389 ULONG size;
390 ULONG block;
391
392 size = PartitionRDBCalcFSSize(PartitionBase, root, fn, buffer);
393 if (size)
394 {
395 fn->fsblocks = size;
396 fn->filesystem = AllocVec(size*512, MEMF_PUBLIC);
397 if (fn->filesystem)
398 {
399 size = 0;
400 block = AROS_BE2LONG(fn->fhb.fhb_SegListBlocks);
401 while (block != (ULONG)-1)
402 {
403 if (readBlock(PartitionBase, root, block, &fn->filesystem[size]) !=0)
404 return;
405 block = AROS_BE2LONG(fn->filesystem[size].lsb_Next);
406 size++;
407 }
408 }
409 }
410 }
411
412 LONG PartitionRDBOpenPartitionTable
413 (
414 struct Library *PartitionBase,
415 struct PartitionHandle *root
416 )
417 {
418 UBYTE *buffer;
419 struct RDBData *data;
420 UBYTE i;
421
422 buffer = AllocVec(root->de.de_SizeBlock << 2, MEMF_PUBLIC);
423 if (!buffer)
424 return 1;
425 data = AllocMem(sizeof(struct RDBData), MEMF_PUBLIC);
426 if (data)
427 {
428 for (i=0;i<RDB_LOCATION_LIMIT; i++)
429 {
430 if (readBlock(PartitionBase, root, i, buffer) != 0) {
431 FreeVec(buffer);
432 return 1;
433 }
434 CopyMem(buffer, &data->rdb, sizeof(struct RigidDiskBlock));
435 if (data->rdb.rdb_ID == AROS_BE2LONG(IDNAME_RIGIDDISK))
436 break;
437 }
438 if (i != RDB_LOCATION_LIMIT)
439 {
440 ULONG block;
441
442 data->rdbblock = i;
443 NEWLIST(&root->table->list);
444 NEWLIST(&data->badblocklist);
445 NEWLIST(&data->fsheaderlist);
446 root->table->data = data;
447
448 /* take the values of the rdb instead of TD_GEOMETRY */
449 root->dg.dg_SectorSize = AROS_BE2LONG(data->rdb.rdb_BlockBytes);
450 root->dg.dg_Cylinders = AROS_BE2LONG(data->rdb.rdb_Cylinders);
451 root->dg.dg_TrackSectors = AROS_BE2LONG(data->rdb.rdb_Sectors);
452 root->dg.dg_Heads = AROS_BE2LONG(data->rdb.rdb_Heads);
453 /*
454 * Before v3.1 partition.library left rdb_CylBlocks uninitialized, so don't rely on it here.
455 * Otherwise you'll get problem reading drives partitioned with earlier partition.library.
456 */
457 root->dg.dg_CylSectors = root->dg.dg_TrackSectors * root->dg.dg_Heads;
458 root->dg.dg_TotalSectors = root->dg.dg_CylSectors * root->dg.dg_Cylinders;
459
460 /* read bad blocks */
461 block = AROS_BE2LONG(data->rdb.rdb_BadBlockList);
462 while (block != (ULONG)-1)
463 {
464 struct BadBlockNode *bn;
465
466 if (readBlock(PartitionBase, root, block, buffer)==0)
467 {
468 bn = PartitionRDBNewBadBlock(PartitionBase, root, (struct BadBlockBlock *)buffer);
469 if (bn != NULL)
470 {
471 AddTail(&data->badblocklist, &bn->ln);
472 block = AROS_BE2LONG(bn->bbb.bbb_Next);
473 }
474 else
475 break;
476 }
477 else
478 break;
479 }
480 /* read partition blocks */
481 block = AROS_BE2LONG(data->rdb.rdb_PartitionList);
482 while (block != (ULONG)-1)
483 {
484 struct PartitionHandle *ph;
485 if (readBlock(PartitionBase, root, block, buffer)==0)
486 {
487 ph = PartitionRDBNewHandle(PartitionBase, root, (struct PartitionBlock *)buffer);
488 if (ph != NULL)
489 {
490 AddTail(&root->table->list, &ph->ln);
491 block = AROS_BE2LONG(((struct PartitionBlock *)ph->data)->pb_Next);
492 }
493 else
494 break;
495 }
496 else
497 break;
498 }
499 /* read filesystem blocks */
500 block = AROS_BE2LONG(data->rdb.rdb_FileSysHeaderList);
501 while (block != (ULONG)-1)
502 {
503 struct FileSysNode *fn;
504
505 if (readBlock(PartitionBase, root, block, buffer)==0)
506 {
507 fn = PartitionRDBNewFileSys(PartitionBase, root, (struct FileSysHeaderBlock *)buffer);
508 if (fn != NULL)
509 {
510 AddTail(&data->fsheaderlist, &fn->h.ln);
511 PartitionRDBReadFileSys(PartitionBase, root, fn, (struct LoadSegBlock *)buffer);
512 block = AROS_BE2LONG(fn->fhb.fhb_Next);
513 }
514 else
515 break;
516 }
517 else
518 break;
519 }
520 FreeVec(buffer);
521 return 0;
522 }
523 FreeMem(data, sizeof(struct RDBData));
524 }
525 FreeVec(buffer);
526 return 1;
527 }
528
529 void PartitionRDBFreeHandle
530 (
531 struct Library *PartitionBase,
532 struct PartitionHandle *ph
533 )
534 {
535 ClosePartitionTable(ph);
536 Remove(&ph->ln);
537 FreeMem(ph->data, sizeof(struct PartitionBlock));
538 FreeVec(ph->ln.ln_Name);
539 FreeMem(ph, sizeof(struct PartitionHandle));
540 }
541
542 void PartitionRDBClosePartitionTable
543 (
544 struct Library *PartitionBase,
545 struct PartitionHandle *root
546 )
547 {
548 struct PartitionHandle *ph;
549 struct BadBlockNode *bn;
550 struct FileSysNode *fn;
551 struct RDBData *data;
552
553 while ((ph = (struct PartitionHandle *)RemTail(&root->table->list)))
554 PartitionRDBFreeHandle(PartitionBase, ph);
555 data = (struct RDBData *)root->table->data;
556 while ((bn = (struct BadBlockNode *)RemTail(&data->badblocklist)))
557 FreeMem(bn, sizeof(struct BadBlockNode));
558
559 while ((fn = (struct FileSysNode *)RemTail(&data->fsheaderlist)))
560 {
561 /* Do not deallocate filesystem handles which are queued for loading */
562 if (!fn->h.boot)
563 PartitionRDBFreeFileSystem(&fn->h);
564 }
565 FreeMem(data, sizeof(struct RDBData));
566 }
567
568 ULONG PartitionRDBWriteFileSys
569 (
570 struct Library *PartitionBase,
571 struct PartitionHandle *root,
572 struct FileSysNode *fn,
573 ULONG block
574 )
575 {
576 ULONG size;
577
578 if (fn->filesystem)
579 {
580 size = 0;
581 while (size != fn->fsblocks)
582 {
583 fn->filesystem[size].lsb_Next = (size+1) != fn->fsblocks ? AROS_LONG2BE(block+1) : (ULONG)-1;
584 fn->filesystem[size].lsb_ChkSum = 0;
585 fn->filesystem[size].lsb_ChkSum = AROS_LONG2BE(0-calcChkSum((ULONG *)&fn->filesystem[size], AROS_LONG2BE(fn->filesystem[size].lsb_SummedLongs)));
586 #if RDB_WRITE
587 if (writeBlock(PartitionBase, root, block++, &fn->filesystem[size]) != 0)
588 return block;
589 #else
590 kprintf("RDB-write: block=%ld, type=LSEG\n", block);
591 block++;
592 #endif
593 size++;
594 }
595 }
596 return block;
597 }
598
599 static LONG PartitionRDBWritePartitionTable(struct Library *PartitionBase, struct PartitionHandle *root)
600 {
601 struct RDBData *data;
602 struct PartitionHandle *ph;
603 struct PartitionBlock *pblock;
604 struct BadBlockNode *bn;
605 struct FileSysNode *fn;
606 ULONG block;
607
608 if (sizeof(root->buffer) < (root->de.de_SizeBlock << 2))
609 return 0;
610
611 data = root->table->data;
612 block = data->rdbblock+1; /* RDB will be written at the end */
613
614 memset(root->buffer, 0, root->de.de_SizeBlock << 2);
615
616 /* write bad blocks */
617 bn = (struct BadBlockNode *)data->badblocklist.lh_Head;
618 if (bn->ln.ln_Succ)
619 data->rdb.rdb_BadBlockList = block;
620 else
621 data->rdb.rdb_BadBlockList = (ULONG)-1;
622 while (bn->ln.ln_Succ)
623 {
624 bn->bbb.bbb_Next = bn->ln.ln_Succ->ln_Succ ? AROS_LONG2BE(block+1) : (ULONG)-1;
625 bn->bbb.bbb_ChkSum = 0;
626 bn->bbb.bbb_ChkSum = AROS_LONG2BE(0-calcChkSum((ULONG *)&bn->bbb, AROS_BE2LONG(bn->bbb.bbb_SummedLongs)));
627 CopyMem(&bn->bbb, root->buffer, sizeof(struct BadBlockBlock));
628 #if RDB_WRITE
629 writeBlock(PartitionBase, root, block++, root->buffer);
630 #else
631 kprintf("RDB-write: block=%ld, type=BADB\n", block);
632 block++;
633 #endif
634
635 bn = (struct BadBlockNode *)bn->ln.ln_Succ;
636 }
637
638 /* write partition blocks */
639 ph = (struct PartitionHandle *)root->table->list.lh_Head;
640 if (ph->ln.ln_Succ)
641 data->rdb.rdb_PartitionList = AROS_LONG2BE(block);
642 else
643 data->rdb.rdb_PartitionList = (ULONG)-1;
644 while (ph->ln.ln_Succ)
645 {
646 pblock = (struct PartitionBlock *)ph->data;
647 pblock->pb_Next = ph->ln.ln_Succ->ln_Succ ? AROS_LONG2BE(block+1) : (ULONG)-1;
648 pblock->pb_ChkSum = 0;
649 pblock->pb_ChkSum = AROS_LONG2BE(0-calcChkSum((ULONG *)pblock, AROS_BE2LONG(pblock->pb_SummedLongs)));
650 CopyMem(pblock, root->buffer, sizeof(struct PartitionBlock));
651 #if RDB_WRITE
652 writeBlock(PartitionBase, root, block++, root->buffer);
653 #else
654 kprintf("RDB-write: block=%ld, type=PART\n", block);
655 block++;
656 #endif
657 ph = (struct PartitionHandle *)ph->ln.ln_Succ;
658 }
659
660 /* write filesystem blocks */
661 fn = (struct FileSysNode *)data->fsheaderlist.lh_Head;
662 if (fn->h.ln.ln_Succ)
663 data->rdb.rdb_FileSysHeaderList = AROS_LONG2BE(block);
664 else
665 data->rdb.rdb_FileSysHeaderList = (ULONG)-1;
666 while (fn->h.ln.ln_Succ)
667 {
668 ULONG fshblock;
669 struct FileSysHeaderBlock *fsb;
670
671 fshblock = block;
672 block++; /* header block will be written later */
673 fn->fhb.fhb_SegListBlocks = AROS_LONG2BE(block);
674 /* write filesystem LSEG blocks */
675 block = PartitionRDBWriteFileSys(PartitionBase, root, fn, block);
676 fn->fhb.fhb_Next = fn->h.ln.ln_Succ->ln_Succ ? AROS_LONG2BE(block) : (ULONG)-1;
677 fn->fhb.fhb_ChkSum = 0;
678 CopyMem(&fn->fhb, root->buffer, sizeof(struct FileSysHeaderBlock));
679 fsb = (struct FileSysHeaderBlock *)root->buffer;
680 fsb->fhb_ChkSum = AROS_LONG2BE(0-calcChkSum((ULONG *)root->buffer, AROS_BE2LONG(fn->fhb.fhb_SummedLongs)));
681 #if RDB_WRITE
682 writeBlock(PartitionBase, root, fshblock, root->buffer);
683 #else
684 kprintf("RDB-write: block=%ld, type=FSHD\n", fshblock);
685 #endif
686 fn = (struct FileSysNode *)fn->h.ln.ln_Succ;
687 }
688 data->rdb.rdb_HighRDSKBlock = AROS_LONG2BE(block-1);
689 data->rdb.rdb_ChkSum = 0;
690 data->rdb.rdb_ChkSum = AROS_LONG2BE(0-calcChkSum((ULONG *)&data->rdb, AROS_BE2LONG(data->rdb.rdb_SummedLongs)));
691 CopyMem(&data->rdb, root->buffer, sizeof(struct RigidDiskBlock));
692 #if RDB_WRITE
693 writeBlock(PartitionBase, root, data->rdbblock, root->buffer);
694 #else
695 kprintf("RDB-write: block=%ld, type=RDSK\n", data->rdbblock);
696 #endif
697 return 0;
698 }
699
700 LONG PartitionRDBCreatePartitionTable(struct Library *PartitionBase, struct PartitionHandle *ph)
701 {
702 struct RDBData *data;
703 ULONG i;
704
705 data = AllocMem(sizeof(struct RDBData), MEMF_PUBLIC | MEMF_CLEAR);
706 if (data)
707 {
708 /* Get number of reserved sectors to place the partition table. By default we reserve 2 cylinders. */
709 ULONG rdbsize = ph->dg.dg_CylSectors << 1;
710
711 /*
712 * Modern machines love LBA, so container partition may be not cylinder-aligned. In this case we will
713 * likely use flat LBA to describe own placement, with Heads == TrackSectors == 1. This will give us
714 * just two sectors for the RDB, which is horribly small.
715 * Here we detect this situation and increase rdbsize by two until it reaches a minimum of 256 blocks.
716 * This way we keep it aligned to our (virtual) CylSectors value, which allows to set correct LoCylinder
717 * value.
718 */
719 while (rdbsize < 256)
720 rdbsize <<= 1;
721
722 ph->table->data = data;
723
724 data->rdb.rdb_ID = AROS_LONG2BE(IDNAME_RIGIDDISK);
725 data->rdb.rdb_SummedLongs = AROS_LONG2BE(sizeof(struct RigidDiskBlock)/4);
726 data->rdb.rdb_BlockBytes = AROS_LONG2BE(ph->dg.dg_SectorSize);
727 data->rdb.rdb_BadBlockList = (ULONG)-1;
728 data->rdb.rdb_PartitionList = (ULONG)-1;
729 data->rdb.rdb_FileSysHeaderList = (ULONG)-1;
730 data->rdb.rdb_DriveInit = (ULONG)-1;
731 for (i = 0; i < 6; i++)
732 data->rdb.rdb_Reserved1[i] = (ULONG)-1;
733 data->rdb.rdb_Cylinders = AROS_LONG2BE(ph->dg.dg_Cylinders);
734 data->rdb.rdb_Sectors = AROS_LONG2BE(ph->dg.dg_TrackSectors);
735 data->rdb.rdb_Heads = AROS_LONG2BE(ph->dg.dg_Heads);
736
737 data->rdb.rdb_Park = data->rdb.rdb_Cylinders;
738 data->rdb.rdb_WritePreComp = data->rdb.rdb_Cylinders;
739 data->rdb.rdb_ReducedWrite = data->rdb.rdb_Cylinders;
740 /* StepRate */
741 data->rdb.rdb_RDBBlocksLo = AROS_LONG2BE(1); /* leave a block for PC */
742 data->rdb.rdb_RDBBlocksHi = AROS_LONG2BE(rdbsize - 1);
743 data->rdb.rdb_LoCylinder = AROS_LONG2BE(rdbsize / ph->dg.dg_CylSectors);
744 data->rdb.rdb_HiCylinder = AROS_LONG2BE(ph->dg.dg_Cylinders-1);
745 data->rdb.rdb_CylBlocks = AROS_LONG2BE(ph->dg.dg_CylSectors);
746 /* AutoParkSeconds */
747 /* DiskVendor */
748 /* DiskProduct */
749 /* DiskRevision */
750 /* ControllerVendor */
751 /* ControllerProduct */
752 /* ControllerRevision */
753
754 data->rdbblock = 1;
755 NEWLIST(&data->badblocklist);
756 NEWLIST(&data->fsheaderlist);
757 NEWLIST(&ph->table->list);
758 return 0;
759 }
760 return 1;
761 }
762
763 static LONG PartitionRDBGetPartitionTableAttr(struct Library *PartitionBase, struct PartitionHandle *root, struct TagItem *tag)
764 {
765 struct RDBData *data = root->table->data;
766
767 switch (tag->ti_Tag)
768 {
769 case PTT_RESERVED:
770 *((LONG *)tag->ti_Data) = AROS_BE2LONG(data->rdb.rdb_RDBBlocksHi) + 1; /* Reserved blocks count starts from 0, so ignore rdb_RDBBlocksLo */
771 return TRUE;
772 }
773
774 return 0;
775 }
776
777 static LONG PartitionRDBGetPartitionAttr(struct Library *PartitionBase, struct PartitionHandle *ph, struct TagItem *tag)
778 {
779 struct PartitionBlock *data = (struct PartitionBlock *)ph->data;
780
781 switch (tag->ti_Tag)
782 {
783 case PT_TYPE:
784 *((ULONG *)tag->ti_Data) = AROS_LONG2BE(ph->de.de_DosType);
785 PTYPE(tag->ti_Data)->id_len = 4;
786 return TRUE;
787
788 case PT_BOOTABLE:
789 *((LONG *)tag->ti_Data) = (AROS_BE2LONG(data->pb_Flags) & PBFF_BOOTABLE) ? TRUE : FALSE;
790 return TRUE;
791
792 case PT_AUTOMOUNT:
793 *((LONG *)tag->ti_Data) = (AROS_BE2LONG(data->pb_Flags) & PBFF_NOMOUNT) ? FALSE : TRUE;
794 return TRUE;
795 }
796
797 return 0;
798 }
799
800 static LONG PartitionRDBSetPartitionAttrs(struct Library *PartitionBase, struct PartitionHandle *ph, const struct TagItem *taglist)
801 {
802 struct TagItem *tag;
803 struct PartitionBlock *data = (struct PartitionBlock *)ph->data;
804
805 while ((tag = NextTagItem((struct TagItem **)&taglist)))
806 {
807 switch (tag->ti_Tag)
808 {
809 case PT_DOSENVEC:
810 {
811 struct DosEnvec *de = (struct DosEnvec *)tag->ti_Data;
812
813 CopyMem(de, &ph->de, (de->de_TableSize+1)*sizeof(IPTR));
814 CopyHost2BEDosEnvec((SIPTR *)de, data->pb_Environment, de->de_TableSize+1);
815 }
816 break;
817 case PT_TYPE:
818 {
819 struct PartitionType *ptype=(struct PartitionType *)tag->ti_Data;
820 ULONG dt;
821
822 CopyMem(ptype->id, &dt, 4);
823 ph->de.de_DosType = AROS_BE2LONG(dt);
824 data->pb_Environment[DE_DOSTYPE] = dt;
825 }
826 break;
827 case PT_NAME:
828 {
829 STRPTR name = (STRPTR)tag->ti_Data;
830 ULONG len = strlen(name);
831
832 CopyMem(name, ph->ln.ln_Name, len+1);
833 CopyMem(name, data->pb_DriveName+1, len);
834 data->pb_DriveName[len+1] = 0;
835 data->pb_DriveName[0] = len;
836 }
837 break;
838 case PT_BOOTABLE:
839 if (tag->ti_Data)
840 data->pb_Flags = AROS_LONG2BE(AROS_BE2LONG(data->pb_Flags) | PBFF_BOOTABLE);
841 else
842 data->pb_Flags = AROS_LONG2BE(AROS_BE2LONG(data->pb_Flags) & ~PBFF_BOOTABLE);
843 break;
844 case PT_AUTOMOUNT:
845 if (tag->ti_Data)
846 data->pb_Flags = AROS_LONG2BE(AROS_BE2LONG(data->pb_Flags) & ~PBFF_NOMOUNT);
847 else
848 data->pb_Flags = AROS_LONG2BE(AROS_BE2LONG(data->pb_Flags) | PBFF_NOMOUNT);
849 break;
850 }
851 }
852 return 0;
853 }
854
855 struct PartitionHandle *PartitionRDBAddPartition(struct Library *PartitionBase, struct PartitionHandle *root, struct TagItem *taglist)
856 {
857 if (FindTagItem(PT_DOSENVEC, taglist) != NULL)
858 {
859 struct PartitionBlock *pblock;
860 struct PartitionHandle *ph;
861 struct PartitionHandle *oph;
862
863 ph = AllocMem(sizeof(struct PartitionHandle), MEMF_PUBLIC | MEMF_CLEAR);
864 if (ph)
865 {
866 ph->ln.ln_Name = AllocVec(32, MEMF_PUBLIC | MEMF_CLEAR);
867 if (ph->ln.ln_Name)
868 {
869 pblock = AllocMem(sizeof(struct PartitionBlock), MEMF_PUBLIC | MEMF_CLEAR);
870 if (pblock)
871 {
872 ph->root = root;
873 ph->bd = root->bd;
874 ph->data = pblock;
875 pblock->pb_ID = AROS_LONG2BE(IDNAME_PARTITION);
876 pblock->pb_SummedLongs = AROS_LONG2BE(sizeof(struct PartitionBlock)/4);
877 PartitionRDBSetPartitionAttrs(PartitionBase, ph, taglist);
878 oph = (struct PartitionHandle *)root->table->list.lh_Head;
879 while (oph->ln.ln_Succ)
880 {
881 if (ph->de.de_LowCyl<oph->de.de_LowCyl)
882 break;
883 oph = (struct PartitionHandle *)oph->ln.ln_Succ;
884 }
885 if (oph->ln.ln_Succ)
886 {
887 oph = (struct PartitionHandle *)oph->ln.ln_Pred;
888 if (oph->ln.ln_Pred)
889 {
890 Insert(&root->table->list, &ph->ln, &oph->ln);
891 }
892 else
893 AddHead(&root->table->list, &ph->ln);
894 }
895 else
896 AddTail(&root->table->list, &ph->ln);
897 if (FindTagItem(PT_DOSENVEC, taglist) == NULL)
898 {
899 ph->dg.dg_DeviceType = DG_DIRECT_ACCESS;
900 ph->dg.dg_SectorSize = ph->de.de_SizeBlock<<2;
901 ph->dg.dg_Heads = ph->de.de_Surfaces;
902 ph->dg.dg_TrackSectors = ph->de.de_BlocksPerTrack;
903 ph->dg.dg_Cylinders = ph->de.de_HighCyl - ph->de.de_LowCyl + 1;
904 ph->dg.dg_BufMemType = ph->de.de_BufMemType;
905 }
906 return ph;
907 }
908 FreeVec(ph->ln.ln_Name);
909 }
910 FreeMem(ph, sizeof(struct PartitionHandle));
911 }
912 }
913 return NULL;
914 }
915
916 void PartitionRDBDeletePartition
917 (
918 struct Library *PartitionBase,
919 struct PartitionHandle *ph
920 )
921 {
922
923 PartitionRDBFreeHandle(PartitionBase, ph);
924 }
925
926 const struct PartitionAttribute PartitionRDBPartitionTableAttrs[]=
927 {
928 {PTT_TYPE, PLAM_READ},
929 {PTT_RESERVED, PLAM_READ},
930 {TAG_DONE, 0}
931 };
932
933 const struct PartitionAttribute PartitionRDBPartitionAttrs[]=
934 {
935 /* TODO: implement write */
936 {PT_GEOMETRY, PLAM_READ},
937 {PT_DOSENVEC, PLAM_READ | PLAM_WRITE},
938 {PT_TYPE, PLAM_READ | PLAM_WRITE},
939 {PT_NAME, PLAM_READ | PLAM_WRITE},
940 {PT_BOOTABLE, PLAM_READ | PLAM_WRITE},
941 {PT_AUTOMOUNT, PLAM_READ | PLAM_WRITE},
942 {TAG_DONE, 0}
943 };
944
945 ULONG PartitionRDBDestroyPartitionTable
946 (
947 struct Library *PartitionBase,
948 struct PartitionHandle *root
949 )
950 {
951 struct RDBData *data;
952 struct RigidDiskBlock *rdb;
953
954 if (sizeof(root->buffer) < (root->de.de_SizeBlock << 2))
955 return 0;
956
957 data = root->table->data;
958 CopyMem(&data->rdb, root->buffer, sizeof(struct RigidDiskBlock));
959 rdb = (struct RigidDiskBlock *)root->buffer;
960 rdb->rdb_ID = 0;
961 if (writeBlock(PartitionBase, root, data->rdbblock, root->buffer))
962 return 1;
963 return 0;
964 }
965
966 struct Node *PartitionRDBFindFileSystem(struct Library *PartitionBase, struct PartitionHandle *ph, struct TagItem *tags)
967 {
968 struct RDBData *data = (struct RDBData *)ph->table->data;
969 struct FileSysNode *fn;
970 struct TagItem *idTag = FindTagItem(FST_ID , tags);
971 struct TagItem *nameTag = FindTagItem(FST_NAME, tags);
972
973 for (fn = (struct FileSysNode *)data->fsheaderlist.lh_Head; fn->h.ln.ln_Succ;
974 fn = (struct FileSysNode *)fn->h.ln.ln_Succ)
975 {
976 if (idTag)
977 {
978 if (fn->fhb.fhb_DosType != idTag->ti_Data)
979 continue;
980 }
981
982 if (nameTag)
983 {
984 if (strcmp(fn->fhb.fhb_FileSysName, (char *)nameTag->ti_Data))
985 continue;
986 }
987
988 return &fn->h.ln;
989 }
990
991 return NULL;
992 }
993
994 BPTR PartitionRDBLoadFileSystem(struct PartitionBase_intern *PartitionBase, struct FileSysHandle *fn)
995 {
996 if (PartitionBase->pb_DOSBase)
997 return LoadFS((struct FileSysNode *)fn, (struct DosLibrary *)PartitionBase->pb_DOSBase);
998 else
999 return BNULL;
1000 }
1001
1002 static LONG PartitionRDBGetFileSystemAttr(struct Library *PartitionBase, struct FileSysHandle *fn, const struct TagItem *tag)
1003 {
1004 struct FileSysEntry *fse;
1005 struct FileSysHeaderBlock *fhb = &((struct FileSysNode *)fn)->fhb;
1006
1007 switch (tag->ti_Tag)
1008 {
1009 case FST_ID:
1010 *((ULONG *)tag->ti_Data) = AROS_BE2LONG(fhb->fhb_DosType);
1011 return TRUE;
1012
1013 case FST_NAME:
1014 *((STRPTR *)tag->ti_Data) = fhb->fhb_FileSysName;
1015 return TRUE;
1016
1017 case FST_FSENTRY:
1018 fse = (struct FileSysEntry *)tag->ti_Data;
1019
1020 /* RDB filesystems are not prioritized */
1021 fse->fse_Node.ln_Pri = 0;
1022
1023 /*
1024 * Don't use CopyMem() or something like that.
1025 * First, you need to deal with endianess.
1026 * Second, some things are actually pointers, you need
1027 * to sign-extend them on 64 bits.
1028 */
1029 fse->fse_DosType = AROS_BE2LONG(fhb->fhb_DosType);
1030 fse->fse_Version = AROS_BE2LONG(fhb->fhb_Version);
1031 fse->fse_PatchFlags = AROS_BE2LONG(fhb->fhb_PatchFlags);
1032 fse->fse_Type = AROS_BE2LONG(fhb->fhb_Type);
1033 fse->fse_Task = AROS_BE2LONG(fhb->fhb_Task);
1034 fse->fse_Lock = (BPTR)(SIPTR)AROS_BE2LONG(fhb->fhb_Lock);
1035 /* Just for convenience. This is expected to be zero. */
1036 fse->fse_Handler = (BPTR)(SIPTR)AROS_BE2LONG(fhb->fhb_Handler);
1037 fse->fse_StackSize = AROS_BE2LONG(fhb->fhb_StackSize);
1038 fse->fse_Priority = AROS_BE2LONG(fhb->fhb_Priority);
1039 fse->fse_Startup = (BPTR)(SIPTR)AROS_BE2LONG(fhb->fhb_Startup);
1040 /* Skip fse_SegList */
1041 fse->fse_GlobalVec = (BPTR)(SIPTR)AROS_BE2LONG(fhb->fhb_GlobalVec);
1042 return TRUE;
1043
1044 case FST_VERSION:
1045 *((ULONG *)tag->ti_Data) = AROS_BE2LONG(fhb->fhb_Version);
1046 return TRUE;
1047 }
1048
1049 return 0;
1050 }
1051
1052 const struct PTFunctionTable PartitionRDB =
1053 {
1054 PHPTT_RDB,
1055 "RDB",
1056 PartitionRDBCheckPartitionTable,
1057 PartitionRDBOpenPartitionTable,
1058 PartitionRDBClosePartitionTable,
1059 PartitionRDBWritePartitionTable,
1060 PartitionRDBCreatePartitionTable,
1061 PartitionRDBAddPartition,
1062 PartitionRDBDeletePartition,
1063 PartitionRDBGetPartitionTableAttr,
1064 NULL,
1065 PartitionRDBGetPartitionAttr,
1066 PartitionRDBSetPartitionAttrs,
1067 PartitionRDBPartitionTableAttrs,
1068 PartitionRDBPartitionAttrs,
1069 PartitionRDBDestroyPartitionTable,
1070 PartitionRDBFindFileSystem
1071 };
1072
1073 const struct FSFunctionTable FilesystemRDB =
1074 {
1075 PartitionRDBLoadFileSystem,
1076 PartitionRDBGetFileSystemAttr,
1077 PartitionRDBFreeFileSystem
1078 };
Mirror of AROS' svn.