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/* -------------------------------------------
Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
------------------------------------------- */
#include <lib/partition-map.h>
bool cb_parse_partition_block_data_at(voidptr_t blob, size_t blob_sz, size_t index, size_t* end_lba, size_t* start_lba, size_t* sector_sz)
{
if (!start_lba ||
!end_lba ||
!blob ||
!blob_sz ||
!sector_sz ||
(sizeof(part_block_t) * index) > blob_sz)
return false;
part_block_t* block = (part_block_t*)(block + (sizeof(part_block_t) * index));
if (block->version != EPM_REVISION ||
block->num_blocks < 1 ||
block->num_blocks > EPM_MAX_BLKS ||
strcmp(block->magic, EPM_MAGIC) > 0 ||
block->lba_end == 0 ||
block->lba_start == 0)
{
return false;
}
*end_lba = block->lba_end;
*start_lba = block->lba_start;
*sector_sz = block->sector_sz;
return true;
}
part_block_t* cb_parse_partition_block_at(voidptr_t blob, size_t blob_sz, size_t index)
{
if (!blob ||
!blob_sz ||
(sizeof(part_block_t) * index) > blob_sz)
return nil;
part_block_t* block = (part_block_t*)(block + (sizeof(part_block_t) * index));
if (block->version != EPM_REVISION ||
block->num_blocks < 1 ||
block->num_blocks > EPM_MAX_BLKS ||
strcmp(block->magic, EPM_MAGIC) > 0 ||
block->lba_end == 0 ||
block->lba_start == 0)
{
return nil;
}
return block;
}
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