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Merge pull request #216 from speed47/se_sha1_parts

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[Tools] implement hash file generation on backup (#101).
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CTCaer 2019-05-19 22:36:55 +03:00 committed by GitHub
commit c5ab4d6abd
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2 changed files with 64 additions and 14 deletions
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19
bootloader/config/config.c
View file

@ -439,11 +439,11 @@ void config_verification()
gfx_clear_grey(0x1B);
gfx_con_setpos(0, 0);
ment_t *ments = (ment_t *)malloc(sizeof(ment_t) * 6);
u32 *vr_values = (u32 *)malloc(sizeof(u32) * 3);
char *vr_text = (char *)malloc(64 * 3);
ment_t *ments = (ment_t *)malloc(sizeof(ment_t) * 7);
u32 *vr_values = (u32 *)malloc(sizeof(u32) * 4);
char *vr_text = (char *)malloc(64 * 4);
for (u32 j = 0; j < 3; j++)
for (u32 j = 0; j < 4; j++)
{
vr_values[j] = j;
ments[j + 2].type = MENT_DATA;
@ -455,11 +455,12 @@ void config_verification()
ments[1].type = MENT_CHGLINE;
memcpy(vr_text, " Disable (Fastest - Unsafe)", 28);
memcpy(vr_text + 64, " Sparse (Fast - Safe)", 23);
memcpy(vr_text + 128, " Full (Slow - Safe)", 23);
memcpy(vr_text, " None (Fastest - Unsafe)", 35);
memcpy(vr_text + 64, " Sparse (Fast - Safe)", 33);
memcpy(vr_text + 128, " Full (Slow - Safer)", 34);
memcpy(vr_text + 192, " Full w/ hashfiles (Slow - Safest)", 35);
for (u32 i = 0; i < 3; i++)
for (u32 i = 0; i < 4; i++)
{
if (h_cfg.verification != i)
vr_text[64 * i] = ' ';
@ -468,7 +469,7 @@ void config_verification()
ments[2 + i].caption = vr_text + (i * 64);
}
memset(&ments[5], 0, sizeof(ment_t));
memset(&ments[6], 0, sizeof(ment_t));
menu_t menu = {ments, "Backup & Restore verification", 0, 0};
u32 *temp_verification = (u32 *)tui_do_menu(&menu);

59
bootloader/frontend/fe_emmc_tools.c
View file

@ -36,6 +36,9 @@
#define MIXD_BUF_ALIGNED 0xB7000000
#define NUM_SECTORS_PER_ITER 8192 // 4MB Cache.
#define OUT_FILENAME_SZ 80
#define HASH_FILENAME_SZ (OUT_FILENAME_SZ + 11) // 11 == strlen(".sha256sums")
#define SHA256_SZ 0x20
extern sdmmc_t sd_sdmmc;
extern sdmmc_storage_t sd_storage;
@ -49,17 +52,44 @@ extern void emmcsn_path_impl(char *path, char *sub_dir, char *filename, sdmmc_st
static int _dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char *outFilename, emmc_part_t *part)
{
FIL fp;
FIL hashFp;
u8 sparseShouldVerify = 4;
u32 btn = 0;
u32 prevPct = 200;
u32 sdFileSector = 0;
int res = 0;
const char hexa[] = "0123456789abcdef";
u8 hashEm[0x20];
u8 hashSd[0x20];
u8 hashEm[SHA256_SZ];
u8 hashSd[SHA256_SZ];
if (f_open(&fp, outFilename, FA_READ) == FR_OK)
{
if (h_cfg.verification == 3)
{
char hashFilename[HASH_FILENAME_SZ];
strncpy(hashFilename, outFilename, OUT_FILENAME_SZ - 1);
strcat(hashFilename, ".sha256sums");
res = f_open(&hashFp, hashFilename, FA_CREATE_ALWAYS | FA_WRITE);
if (res)
{
f_close(&fp);
gfx_con.fntsz = 16;
EPRINTFARGS("\nHash file could not be opened for write (error %d).\n\nAborting..\n", res);
return 1;
}
char chunkSizeAscii[10];
itoa(NUM_SECTORS_PER_ITER * NX_EMMC_BLOCKSIZE, chunkSizeAscii, 10);
chunkSizeAscii[9] = '\0';
f_puts("# chunksize: ", &hashFp);
f_puts(chunkSizeAscii, &hashFp);
f_puts("\n", &hashFp);
}
u32 totalSectorsVer = (u32)((u64)f_size(&fp) >> (u64)9);
u8 *bufEm = (u8 *)EMMC_BUF_ALIGNED;
@ -76,7 +106,7 @@ static int _dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char *outFi
// Check every time or every 4.
// Every 4 protects from fake sd, sector corruption and frequent I/O corruption.
// Full provides all that, plus protection from extremely rare I/O corruption.
if ((h_cfg.verification & 2) || !(sparseShouldVerify % 4))
if ((h_cfg.verification >= 2) || !(sparseShouldVerify % 4))
{
if (!sdmmc_storage_read(storage, lba_curr, num, bufEm))
{
@ -109,6 +139,22 @@ static int _dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char *outFi
f_close(&fp);
return 1;
}
if (h_cfg.verification == 3)
{
// Transform computed hash to readable hexadecimal
char hashStr[SHA256_SZ * 2 + 1];
char *hashStrPtr = hashStr;
for (int i = 0; i < SHA256_SZ; i++)
{
*(hashStrPtr++) = hexa[hashSd[i] >> 4];
*(hashStrPtr++) = hexa[hashSd[i] & 0x0F];
}
hashStr[SHA256_SZ * 2] = '\0';
f_puts(hashStr, &hashFp);
f_puts("\n", &hashFp);
}
}
pct = (u64)((u64)(lba_curr - part->lba_start) * 100u) / (u64)(part->lba_end - part->lba_start);
@ -132,11 +178,13 @@ static int _dump_emmc_verify(sdmmc_storage_t *storage, u32 lba_curr, char *outFi
msleep(1000);
f_close(&fp);
f_close(&hashFp);
return 0;
}
}
f_close(&fp);
f_close(&hashFp);
tui_pbar(0, gfx_con.y, pct, 0xFFCCCCCC, 0xFF555555);
@ -361,6 +409,7 @@ static int _dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t
return 0;
}
bytesWritten = 0;
totalSize = (u64)((u64)totalSectors << 9);
@ -496,7 +545,7 @@ static void _dump_emmc_selected(emmcPartType_t dumpType)
}
int i = 0;
char sdPath[80];
char sdPath[OUT_FILENAME_SZ];
// Create Restore folders, if they do not exist.
emmcsn_path_impl(sdPath, "/restore", "", &storage);
emmcsn_path_impl(sdPath, "/restore/partitions", "", &storage);
@ -855,7 +904,7 @@ static void _restore_emmc_selected(emmcPartType_t restoreType)
}
int i = 0;
char sdPath[80];
char sdPath[OUT_FILENAME_SZ];
timer = get_tmr_s();
if (restoreType & PART_BOOT)