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types: User a proper struct for MBR partition table

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This commit is contained in:
CTCaer
2020-04-27 08:58:37 +03:00
parent 6a6648d3b3
commit ae656a0f81
8 changed files with 196 additions and 29 deletions
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11
nyx/nyx_gui/frontend/fe_emmc_tools.c
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@@ -30,6 +30,7 @@
#include "../mem/heap.h"
#include "../sec/se.h"
#include "../sec/se_t210.h"
#include "../storage/mbr_gpt.h"
#include "../storage/nx_emmc.h"
#include "../storage/sdmmc.h"
#include "../utils/btn.h"
@@ -53,19 +54,17 @@ extern void emmcsn_path_impl(char *path, char *sub_dir, char *filename, sdmmc_st
static void get_valid_partition(u32 *sector_start, u32 *sector_size, u32 *part_idx, bool backup)
{
sd_mount();
u8 *mbr = (u8 *)malloc(0x200);
mbr_t *mbr = (mbr_t *)calloc(sizeof(mbr_t), 1);
sdmmc_storage_read(&sd_storage, 0, 1, mbr);
memcpy(mbr, mbr + 0x1BE, 0x40);
*part_idx = 0;
int i = 0;
u32 curr_part_size = 0;
for (i = 1; i < 4; i++)
{
curr_part_size = *(u32 *)&mbr[0x0C + (0x10 * i)];
*sector_start = *(u32 *)&mbr[0x08 + (0x10 * i)];
u8 type = mbr[0x04 + (0x10 * i)];
curr_part_size = mbr->partitions[i].size_sct;
*sector_start = mbr->partitions[i].start_sct;
u8 type = mbr->partitions[i].type;
if ((curr_part_size >= *sector_size) && *sector_start && type != 0x83 && (!backup || type == 0xE0))
break;
}