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Detect sectors filled with 0x55.

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This commit is contained in:
Natalia Portillo
2020-05-03 16:00:34 +01:00
parent cce88d8cdd
commit 4b17978d5d
1 changed files with 53 additions and 0 deletions
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53
edccchk.c
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@@ -96,6 +96,7 @@ static uint32_t mode2f2warnings;
static uint32_t totalsectors; static uint32_t totalsectors;
static uint32_t totalerrors; static uint32_t totalerrors;
static uint32_t totalwarnings; static uint32_t totalwarnings;
static uint32_t filledsectors;
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
// //
@@ -172,6 +173,7 @@ static int8_t ecc_checkpq(
ecc_a = ecc_f_lut[ecc_a]; ecc_a = ecc_f_lut[ecc_a];
} }
ecc_a = ecc_b_lut[ecc_f_lut[ecc_a] ^ ecc_b]; ecc_a = ecc_b_lut[ecc_f_lut[ecc_a] ^ ecc_b];
if( if(
ecc[major ] != (ecc_a ) || ecc[major ] != (ecc_a ) ||
ecc[major + major_count] != (ecc_a ^ ecc_b) ecc[major + major_count] != (ecc_a ^ ecc_b)
@@ -240,6 +242,7 @@ static int8_t ecmify(
) { ) {
DPRINTF("Entering ecmify(\"%s\").\n", infilename); DPRINTF("Entering ecmify(\"%s\").\n", infilename);
int8_t returncode = 0; int8_t returncode = 0;
int8_t filled = 0;
FILE* in = NULL; FILE* in = NULL;
@@ -301,6 +304,7 @@ static int8_t ecmify(
mode2f2warnings = 0; mode2f2warnings = 0;
totalsectors= 0; totalsectors= 0;
totalerrors= 0; totalerrors= 0;
filledsectors=0;
DPRINTF("ecmify(): Entering main loop.\n"); DPRINTF("ecmify(): Entering main loop.\n");
for(;;) { for(;;) {
@@ -421,6 +425,22 @@ static int8_t ecmify(
if(!ecc_checkpq(sector + 0xC, sector + 0x10, 52, 43, 86, 88, sector + 0x81C + 0xAC)) if(!ecc_checkpq(sector + 0xC, sector + 0x10, 52, 43, 86, 88, sector + 0x81C + 0xAC))
fprintf(stderr, "%02X:%02X:%02X: Failed ECC Q\n", sector[0x00C], sector[0x00D], sector[0x00E]); fprintf(stderr, "%02X:%02X:%02X: Failed ECC Q\n", sector[0x00C], sector[0x00D], sector[0x00E]);
} }
filled = 1;
for(int i = 0x010; i < 0x810; i++)
{
if(sector[i] != 0x55)
{
filled = 0;
break;
}
}
if(filled)
{
filledsectors++;
fprintf(stderr, "Mode 1 sector at address: %02X:%02X:%02X is filled with 55h\n", sector[0x00C], sector[0x00D], sector[0x00E]);
}
} }
else if(sector[0x00F] == 0x02) // mode (1 byte) else if(sector[0x00F] == 0x02) // mode (1 byte)
{ {
@@ -444,6 +464,22 @@ static int8_t ecmify(
totalwarnings++; totalwarnings++;
fprintf(stderr, "Subheader copies differ in mode 2 form 2 sector at address: %02X:%02X:%02X\n", sector[0x00C], sector[0x00D], sector[0x00E]); fprintf(stderr, "Subheader copies differ in mode 2 form 2 sector at address: %02X:%02X:%02X\n", sector[0x00C], sector[0x00D], sector[0x00E]);
} }
filled = 1;
for(int i = 0x018; i < 0x91C; i++)
{
if(sector[i] != 0x55)
{
filled = 0;
break;
}
}
if(filled)
{
filledsectors++;
fprintf(stderr, "Mode 2 form 2 sector at address: %02X:%02X:%02X is filled with 55h\n", sector[0x00C], sector[0x00D], sector[0x00E]);
}
} }
else else
{ {
@@ -472,6 +508,22 @@ static int8_t ecmify(
totalwarnings++; totalwarnings++;
fprintf(stderr, "Subheader copies differ in mode 2 form 1 sector at address: %02X:%02X:%02X\n", sector[0x00C], sector[0x00D], sector[0x00E]); fprintf(stderr, "Subheader copies differ in mode 2 form 1 sector at address: %02X:%02X:%02X\n", sector[0x00C], sector[0x00D], sector[0x00E]);
} }
filled = 1;
for(int i = 0x018; i < 0x818; i++)
{
if(sector[i] != 0x55)
{
filled = 0;
break;
}
}
if(filled)
{
filledsectors++;
fprintf(stderr, "Mode 2 form 1 sector at address: %02X:%02X:%02X is filled with 55h\n", sector[0x00C], sector[0x00D], sector[0x00E]);
}
} }
} }
else // Unknown sector mode!!! else // Unknown sector mode!!!
@@ -514,6 +566,7 @@ static int8_t ecmify(
printf("Mode 2 form 2 sectors... %d\n", mode2f2sectors); printf("Mode 2 form 2 sectors... %d\n", mode2f2sectors);
printf("\twith errors..... %d\n", mode2f2errors); printf("\twith errors..... %d\n", mode2f2errors);
printf("\twith warnings... %d\n", mode2f2warnings); printf("\twith warnings... %d\n", mode2f2warnings);
printf("Filled sectors.......... %d\n", filledsectors);
printf("Total sectors........... %d\n", totalsectors); printf("Total sectors........... %d\n", totalsectors);
printf("Total errors............ %d\n", totalerrors); printf("Total errors............ %d\n", totalerrors);
printf("Total warnings.......... %d\n", totalwarnings); printf("Total warnings.......... %d\n", totalwarnings);