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[[File:Flash_TSOP.png|thumbnail|Typical Flash TSOP package found on PS3's can either be 2x128mb NAND or 1x16mb NOR]] | |||
This is my attempt at documenting the files located and stored on flash. Please do note that this is from reverse engineering several flash dumps, not from reverse engineering the PS3 firmware itself. This involves alot of guesswork and may not be accurate and there may be information missing. | |||
= Structure = | = Structure = | ||
Revision as of 08:02, 11 May 2011
This is my attempt at documenting the files located and stored on flash. Please do note that this is from reverse engineering several flash dumps, not from reverse engineering the PS3 firmware itself. This involves alot of guesswork and may not be accurate and there may be information missing.
Structure
- 0x0 > 0x400 = Headers
- 0x400 > 0x800 = File table
- 0x800 > 0xF00000 = Region 1
- 0x800 > 0x2F000 = asecure_loader region
- 0x840 > 0xF110 = metldr
- 0xF00000 > 0xFFFFFF = region 2
- unknown format
Flash Format
Header
First 512 Bytes of flash
00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000010 00 00 00 00 0F AC E0 FF 00 00 00 00 DE AD BE EF .....¬àÿ....Þ.¾ï 00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 78 00 ..............x. 00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ .... 000001F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
| Address | Length | Value | Description |
|---|---|---|---|
| 0x00 | 0x10 | 0x0 | Blank/Unknown |
| 0x10 | 0x10 | 0x0FACE0FF 0xDEADBEEF | Magic number |
| 0x20 | 0x10 | 0x7800 | Length of region * 0x200 |
| 0x30 | 0x1D0 | 0x0 | Blank/Unknown |
Unknown Header
The next block of 512 bytes only has the first 16 bytes written. Unsure exactly what this means.
00000200 49 46 49 00 00 00 00 01 00 00 00 02 00 00 00 00 IFI............. 00000210 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ .... 000003F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
| Address | Length | Value | Description |
|---|---|---|---|
| 0x200 | 0x10 | 0x49464900 (String: "IFI") 0x1 0x2 0x0 | Unknown |
File Table
The next 1024 bytes contain the file entry table
Header
Small 16 byte header to describe length and entry count
00000400 00 00 00 01 00 00 00 0B 00 00 00 00 00 EF FC 00 .............ïü.
| Address | Length | Value | Description |
|---|---|---|---|
| 0x0 | 0x4 | 0x01 | Unknown |
| 0x4 | 0x4 | 0x0B | Entry Count |
| 0x8 | 0x8 | 0xEFFC00 | Length of Flash Region (relative to 0x400 (region start) |
First is a header, this tells us how many files are stored here.
Entry Table
Then follows a 32 byte entry for each file
00000410 00 00 00 00 00 00 04 00 00 00 00 00 00 02 E8 00 ..............è. 00000420 61 73 65 63 75 72 65 5F 6C 6F 61 64 65 72 00 00 asecure_loader.. 00000430 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
| Address | Length | Value | Description |
|---|---|---|---|
| 0x0 | 0x8 | 0x400 | File offset relative to 0x400 (Region start) |
| 0x8 | 0x8 | 0x2E800 | File length |
| 0x10 | 0x10 | char[32]:"asecure_loader" | File name |
| 0x20 | 0x10 | 0x0 | Blank/Unknown |
asecure_loader region
Within asecure_loader is another file table similar to region 1
Header
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000800 00 00 00 01 00 00 00 01 00 00 00 00 00 02 E8 00 ..............è. u32 - unknown (0x01) u32 - Entry count (0x01) u64 - Length of Region (0x2E800)
Entry Table
Then follows a 32 byte entry for each file
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000810 00 00 00 00 00 00 00 40 00 00 00 00 00 00 E8 D0 .......@......èÐ 00000820 6D 65 74 6C 64 72 00 00 00 00 00 00 00 00 00 00 metldr.......... 00000830 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ u64 - offset - Relative to region start (0x40) u64 - size (0xE8D0) char[32] - name (metldr)
Example
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000800 00 00 00 01 00 00 00 01 00 00 00 00 00 02 E8 00 ..............è. 00000810 00 00 00 00 00 00 00 40 00 00 00 00 00 00 E8 D0 .......@......èÐ 00000820 6D 65 74 6C 64 72 00 00 00 00 00 00 00 00 00 00 metldr.......... 00000830 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Encrypted Files on Flash
Encrypted files on flash appear to have some sort of header, Here are two different samples from metldr and bootldr
From metldr
00000840 00 00 0E 8E 99 87 3B C7 15 F2 80 80 9C 30 22 25 ...Ž™‡;Ç.ò€€œ0"% 00000850 00 00 0E 8E 78 A5 61 E0 17 72 6E F7 A7 1B 41 AB ...Žx¥aà.rn÷§.A«
00000840 00 00 0E 8E 99 87 3B C7 15 F2 80 80 9C 30 22 25 ...Ž™‡;Ç.ò€€œ0"% 00000850 00 00 0E 8E 81 2E 00 A9 59 75 01 CC C1 72 D5 50 ...Ž...©Yu.ÌÁrÕP
From bootldr
00FC0000 00 00 2F 4B 53 92 1C E7 F7 33 41 76 9B 7A 1E D6 ../KS’.ç÷3Av›z.Ö 00FC0010 00 00 2F 4B 78 A5 61 E0 17 72 6E F7 A7 1B 41 AB ../Kx¥aà.rn÷§.A«
00FC0000 00 00 2F 4B CB 9E 15 24 28 B4 4F D2 F9 3F BC 43 ../KËž.$(´OÒù?¼C 00FC0010 00 00 2F 4B 81 2E 00 A9 59 75 01 CC C1 72 D5 50 ../K...©Yu.ÌÁrÕP
Observations
As you can see, some parts appear static depending on their purpose:
metldr
00000840 00 00 0E 8E 99 87 3B C7 15 F2 80 80 9C 30 22 25 ...Ž™‡;Ç.ò€€œ0"% 00000850 00 00 0E 8E xx xx xx xx xx xx xx xx xx xx xx xx ...Žx...........
bootldr
00FC0000 00 00 2F 4B xx xx xx xx xx xx xx xx xx xx xx xx ../K............ 00FC0010 00 00 2F 4B xx xx xx xx xx xx xx xx xx xx xx xx ../K............
per console in both samples
00000840 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx ................ 00000850 xx xx xx xx 81 2E 00 A9 59 75 01 CC C1 72 D5 50 .......©Yu.ÌÁrÕP
The first 4 bytes appear to reffer to length. eg:
metldr length: 0xE920 0x00000E8E * 0x10 = 0xE8E0 + 0x40 = 0xE920 bootldr length: 0x2F4F0 0x00002F4B * 0x10 = 0x2F4B0 + 0x40 = 0x2F4F0
Header shown is 0x20 bytes, perhaps this means there is a 0x40 byte header. I was not able to find any correlation of the other 2x12 bytes here, perhaps these are keys of some sort.
Region 2 Format
This region appears to directly follow the other region (at 0xF0000 = region size + header)
Not much is known about this at this stage.
Header
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00F00000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00F00010 00 00 00 00 0F AC E0 FF 00 00 00 00 DE AD FA CE .....¬àÿ....Þ.úÎ 00F00020 00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 02 ................ 00F00030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ .... 00F000B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00F000C0 00 00 00 00 00 00 79 00 00 00 00 00 00 00 01 00 ......y......... 00F000D0 10 70 00 00 01 00 00 01 00 00 00 00 00 00 00 03 .p.............. 00F000E0 10 70 00 00 02 00 00 01 00 00 00 00 00 00 00 03 .p.............. 00F000F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ .... 00F00140 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00F00150 00 00 00 00 00 00 7A 00 00 00 00 00 00 00 04 00 ......z......... 00F00160 10 70 00 00 01 00 00 01 00 00 00 00 00 00 00 03 .p.............. 00F00170 10 70 00 00 02 00 00 01 00 00 00 00 00 00 00 03 .p.............. 00F00180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ .... 00F00FF0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Bootloader
Located at 0xFC0000 to 0xFFFFFF (The last 256kb of flash)
NOR Files
The following is a list of files stored in NOR Flash
| Name | Offset | Size |
|---|---|---|
| asecure_loader | 0x400 | 0x2E800 (190,464 bytes) |
| eEID | 0x2EC00 | 0x10000 (65,636 bytes) |
| cISD | 0x3EC00 | 0x800 (2,048 bytes) |
| cCSD | 0x3F400 | 0x800 (2,048 bytes) |
| trvk_prg0 | 0x03FC00 | 0x20000 (131,072 bytes) |
| trvk_pkg0 | 0x7FC00 | 0x20000 (131,072 bytes) |
| trvk_pkg1 | 0x9FC00 | 0x20000 (131,072 bytes) |
| ros0 | 0xBFC00 | 0x700000 (7,340,032 bytes) |
| ros1 | 0x7BFC00 | 0x700000 (7,340,032 bytes) |
| cvtrm | 0XEBFC00 | 0x40000 (262,144 bytes) |
NOR Unpacking // NOR Unpkg
/*
# ../norunpkg norflash.bin norflash
unpacking asecure_loader (size: 190xxx bytes)...
unpacking eEID (size: 65536 bytes)...
unpacking cISD (size: 2048 bytes)...
unpacking cCSD (size: 2048 bytes)...
unpacking trvk_prg0 (size: 131072 bytes)...
unpacking trvk_prg1 (size: 131072 bytes)...
unpacking trvk_pkg0 (size: 131072 bytes)...
unpacking trvk_pkg1 (size: 131072 bytes)...
unpacking ros0 (size: 7340032 bytes)...
unpacking ros1 (size: 7340032 bytes)...
unpacking cvtrm (size: 262144 bytes)...
*/
// Copyright 2010 Sven Peter
// Licensed under the terms of the GNU GPL, version 2
// http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
// nor modifications by rms.
#include "tools.h"
#include "types.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#ifdef WIN32
#define MKDIR(x,y) mkdir(x)
#else
#define MKDIR(x,y) mkdir(x,y)
#endif
u8 *pkg = NULL;
static void unpack_file(u32 i)
{
u8 *ptr;
u8 name[33];
u64 offset;
u64 size;
ptr = pkg + 0x10 + 0x30 * i;
offset = be64(ptr + 0x00);
size = be64(ptr + 0x08);
memset(name, 0, sizeof name);
strncpy((char *)name, (char *)(ptr + 0x10), 0x20);
printf("unpacking %s (size: %d bytes)...\n", name, size);
memcpy_to_file((char *)name, pkg + offset, size);
}
static void unpack_pkg(void)
{
u32 n_files;
u64 size;
u32 i;
n_files = be32(pkg + 4);
size = be64(pkg + 8);
for (i = 0; i < n_files; i++)
unpack_file(i);
}
int main(int argc, char *argv[])
{
if (argc != 3)
fail("usage: norunpkg filename.nor target");
pkg = mmap_file(argv[1]);
/* kludge for header, i do not do sanity checks at the moment */
pkg += 1024;
MKDIR(argv[2], 0777);
if (chdir(argv[2]) != 0)
fail("chdir");
unpack_pkg();
return 0;
}
Source: http://rms.dukio.com/?p=25
RMS - eEID splitter
#include <stdio.h>
#include <stdlib.h>
void
DumpEidData (FILE * pFile, int iInputSize, int iEidCount)
{
FILE *pOutput;
char szFileName[8];
char *szBuf;
int iRes, iSize;
printf("dumping EID%s from eEID at %p, size %d (%x)..\n",
iEidCount, pFile, iInputSize, iInputSize
);
szBuf = (char *) malloc (iInputSize + 1);
if (szBuf == NULL)
{
perror ("malloc");
exit (1);
};
iSize = fread (szBuf, iInputSize, 1, pFile);
sprintf (szFileName, "EID%d", iEidCount);
pOutput = fopen (szFileName, "wb");
iRes = fwrite (szBuf, iInputSize, 1, pOutput);
if (iRes != iSize)
{
perror ("fwrite");
exit (1);
};
free (szBuf);
}
int
main (int argc, char **argv)
{
FILE *pFile;
pFile = fopen (argv[1], "rb");
if (pFile == NULL)
{
printf ("usage: %s <eEID>\n");
exit (1);
}
fseek (pFile, 0x70, SEEK_SET);
DumpEidData (pFile, 2144, 0);
DumpEidData (pFile, 672, 1);
DumpEidData (pFile, 1840, 2);
DumpEidData (pFile, 256, 3);
DumpEidData (pFile, 48, 4);
DumpEidData (pFile, 2560, 5);
}
Source: http://rms.dukio.com/?p=59