usr.sbin/installboot/ffs.c

90 ffs_read_disk_block(ib_params *params, uint64_t blkno, int size, char blk[])
94 	assert(params != NULL);
95 	assert(params->filesystem != NULL);
96 	assert(params->fsfd != -1);
100 	rv = pread(params->fsfd, blk, size, blkno * params->sectorsize);
103 		    (unsigned long long)blkno, params->filesystem);
107 		    (unsigned long long)blkno, params->filesystem);
120 ffs_find_disk_blocks_ufs1(ib_params *params, ino_t ino,
138 	assert(params != NULL);
139 	assert(params->fstype != NULL);
144 	if (!ffs_read_disk_block(params, params->fstype->sblockloc, SBLOCKSIZE,
149 	if (params->fstype->needswap)
155 		    fs->fs_inopb, params->filesystem);
160 	if (! ffs_read_disk_block(params,
161 		fsbtodb(fs, ino_to_fsba(fs, ino)) + params->fstype->offset,
167 	if (params->fstype->needswap)
200 		if (params->fstype->needswap)
217 			else if (! ffs_read_disk_block(params,
218 				fsbtodb(fs, blk) + params->fstype->offset,
233 		rv = (*callback)(params, state,
234 		    fsbtodb(fs, blk) + params->fstype->offset,
244 		    (unsigned long long)ino, params->filesystem);
257 ffs_find_disk_blocks_ufs2(ib_params *params, ino_t ino,
275 	assert(params != NULL);
276 	assert(params->fstype != NULL);
281 	if (!ffs_read_disk_block(params, params->fstype->sblockloc, SBLOCKSIZE,
286 	if (params->fstype->needswap)
292 		    fs->fs_inopb, params->filesystem);
297 	if (! ffs_read_disk_block(params,
298 		fsbtodb(fs, ino_to_fsba(fs, ino)) + params->fstype->offset,
304 	if (params->fstype->needswap)
337 		if (params->fstype->needswap)
354 			else if (! ffs_read_disk_block(params,
355 				fsbtodb(fs, blk) + params->fstype->offset,
369 		rv = (*callback)(params, state,
370 		    fsbtodb(fs, blk) + params->fstype->offset,
380 		    (unsigned long long)ino, params->filesystem);
393 ffs_findstage2_ino(ib_params *params, void *_ino,
400 	assert(params != NULL);
401 	assert(params->fstype != NULL);
402 	assert(params->stage2 != NULL);
410 	if (! ffs_read_disk_block(params, blk, blksize, dirbuf))
418 		if (params->fstype->needswap) {
422 		if (ino != 0 && strcmp(de->d_name, params->stage2) == 0) {
442 ffs_findstage2_blocks(ib_params *params, void *_state,
447 	assert(params != NULL);
448 	assert(params->stage2 != NULL);
453 		    params->stage2, state->maxblk);
469 ffs_match(ib_params *params)
471 	return ffs_match_common(params, (off_t) 0);
475 raid_match(ib_params *params)
478 	if (params->sectorsize != 512) {
481 			params->sectorsize);
484 	return ffs_match_common(params, (off_t) RF_PROTECTED_SECTORS);
488 ffs_match_common(ib_params *params, off_t offset)
495 	assert(params != NULL);
496 	assert(params->fstype != NULL);
500 		loc = sblock_try[i] / params->sectorsize + offset;
501 		if (!ffs_read_disk_block(params, loc, SBLOCKSIZE, sbbuf))
508 			params->fstype->needswap = 0;
509 			params->fstype->blocksize = fs->fs_bsize;
510 			params->fstype->sblockloc = loc;
511 			params->fstype->offset = offset;
518 			params->fstype->needswap = 1;
519 			params->fstype->blocksize = bswap32(fs->fs_bsize);
520 			params->fstype->sblockloc = loc;
521 			params->fstype->offset = offset;
536 ffs_findstage2(ib_params *params, uint32_t *maxblk, ib_block *blocks)
542 	assert(params != NULL);
543 	assert(params->stage2 != NULL);
547 	if (params->flags & IB_STAGE2START)
548 		return (hardcode_stage2(params, maxblk, blocks));
551 	if (params->stage2[0] == '/')
552 		params->stage2++;
553 	if (strchr(params->stage2, '/') != NULL) {
555 		    params->stage2);
557 		    params->filesystem);
563 		rv = ffs_find_disk_blocks_ufs2(params, ROOTINO,
566 		rv = ffs_find_disk_blocks_ufs1(params, ROOTINO,
570 		    params->stage2, params->filesystem);
572 		    params->filesystem);
581 		rv = ffs_find_disk_blocks_ufs2(params, ino,
584 		rv = ffs_find_disk_blocks_ufs1(params, ino,