mirror of
https://github.com/suchmememanyskill/TegraExplorer.git
synced 2024-11-26 05:42:07 +00:00
12136d9289
Fixed: Scripts should free at the end Added: ncaGetType, saveSign Modified: pathCombine can now take 2+ args to combine
51 lines
No EOL
1.2 KiB
C
51 lines
No EOL
1.2 KiB
C
#include "save.h"
|
|
#include <utils/types.h>
|
|
#include <libs/fatfs/ff.h>
|
|
#include <sec/se.h>
|
|
#include <mem/heap.h>
|
|
#include "../err.h"
|
|
|
|
ErrCode_t saveCommit(const char *path){
|
|
FIL file;
|
|
int res;
|
|
u8 *buf, hash[0x20], *cmac_data, cmac[0x10];
|
|
const u32 hashed_data_size = 0x3D00, cmac_data_size = 0x200;
|
|
|
|
buf = malloc(hashed_data_size);
|
|
cmac_data = malloc(cmac_data_size);
|
|
|
|
if ((res = f_open(&file, path, FA_OPEN_EXISTING | FA_READ | FA_WRITE))){
|
|
goto out_free;
|
|
}
|
|
|
|
f_lseek(&file, 0x300);
|
|
if ((res = f_read(&file, buf, hashed_data_size, NULL))){
|
|
goto out_free;
|
|
}
|
|
|
|
se_calc_sha256_oneshot(hash, buf, hashed_data_size);
|
|
|
|
f_lseek(&file, 0x108);
|
|
if ((res = f_write(&file, hash, sizeof(hash), NULL))){
|
|
goto out_free;
|
|
}
|
|
|
|
f_lseek(&file, 0x100);
|
|
if ((res = f_read(&file, cmac_data, cmac_data_size, NULL))){
|
|
goto out_free;
|
|
}
|
|
|
|
se_aes_cmac(8, cmac, 0x10, cmac_data, cmac_data_size);
|
|
|
|
f_lseek(&file, 0);
|
|
|
|
if ((res = f_write(&file, cmac, sizeof(cmac), NULL))){
|
|
goto out_free;
|
|
}
|
|
|
|
out_free:;
|
|
free(buf);
|
|
free(cmac_data);
|
|
f_close(&file);
|
|
return newErrCode(res);
|
|
} |