Editing Remarry Bluray Drive on Linux

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[[Category:OtherOS]]
 
=Introduction=
=Introduction=
* I was playing with HRL buffer of my BD drive on PS3 Slim and corrupted it.
* After that i couldn't play BD movies on GameOS, BD player returned an error.
* After i have written P-Block, S-Block and a new HRL, i could play my BD movies again :)
* Hope this guide can help someone too.
* I tested it on PS3 slim.
* It was tested on PS3 phat too.


=EID2=
=EID2=


* You will need decrypted EID2 data.
* You will need decrypted EID2 data.
* How to get it on Linux is described here: http://www.psdevwiki.com/ps3/Spuisofs#Dumping_EID2_Key_with_spuisofs
* How to get it on Linux is described here: http://www.ps3devwiki.com/wiki/Spuisofs#Dumping_EID2_Key_with_spuisofs
* EID2 contains encrypted P-Block and S-Block.
* EID2 contains encrypted P-Block and S-Block.
* To get decrypted S-Block and P-Block first you have to decrypt EID2 with EID2 key and IV and then decrypt the blocks with DES-CBC.
* To get decrypted S-Block and P-Block first you have to decrypt EID2 with EID2 key and IV and then decrypt the blocks with DES-CBC.
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key: 6C CA B3 54 05 FA 56 2C
key: 6C CA B3 54 05 FA 56 2C
</pre>
</pre>
==Decrypting EID2==
* You can decrypt P- and S-Blocks with openssl e.g.
{{Keyboard|content=<syntaxhighlight lang="bash">
# eid2.bin is your EID2 from NOR/NAND flash
# You can dump EID2 e.g. with ps3dm
ps3dm iim get_data 2 > eid2.bin
# ignore any "bad decrypt" messages from openssl from now on
# create pblock_des.bin
(dd if=eid2.bin bs=1 skip=$((0x20)) count=$((0x80)); dd if=/dev/zero bs=1 count=16) | \
    openssl enc -d -aes-256-cbc -iv <your EID2 IV> -K <your EID2 key>  > pblock_des.bin
# create sblock_des.bin
(dd if=eid2.bin bs=1 skip=$((0xa0)) count=$((0x690)); dd if=/dev/zero bs=1 count=16) | \
    openssl enc -d -aes-256-cbc -iv <your EID2 IV> -K <your EID2 key>  > sblock_des.bin
# First 16 bytes in pblock_des.bin and sblock_des.bin should be equal to:
# 01 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
# create pblock.bin
(dd if=pblock_des.bin bs=1 skip=$((0x10)) count=$((0x60)); dd if=/dev/zero bs=1 count=8) | \
    openssl enc -d -des-cbc -iv 0000000000000000 -K 6CCAB35405FA562C > pblock.bin
# create sblock.bin
(dd if=sblock_des.bin bs=1 skip=$((0x10)) count=$((0x670)); dd if=/dev/zero bs=1 count=8) | \
    openssl enc -d -des-cbc -iv 0000000000000000 -K 6CCAB35405FA562C > sblock.bin
# First 16 bytes in pblock.bin and sblock.bin should be equal
# pblock.bin and sblock.bin are the files which you write to BD drive buffers !!!
</syntaxhighlight>}}
=Tools=
* ps3vuart-tools: http://www.ps3devwiki.com/wiki/Ps3vuart-tools
* bd-tools: http://gitorious.ps3dev.net/ps3linux/bd-tools
* You could also use my PS3 Debian LiveCD which has ps3vuart-tools preinstalled and GCC compiler which you can use to compile all necessary BD tools. See http://www.ps3devwiki.com/wiki/Debian_LiveCD.
=Steps=
* The order is important. You cannot e.g. write HRL before writing P-Block or S-Block. I tried and corrupted my HRL.
1. Write P-Block
2. Authenticate BD drive with Storage Manager
3. Write S-Block
4. Write HRL


=Writing P-Block=
=Writing P-Block=
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* P-Block is in decrypted EID2 at offset 0x20 and of size 0x80.
* P-Block is in decrypted EID2 at offset 0x20 and of size 0x80.
* Not all P-Block data is sent to BD drive. Only data starting at offset 0x10 and of size 0x60 bytes is written to BD drive buffer 2.
* Not all P-Block data is sent to BD drive. Only data starting at offset 0x10 and of size 0x60 bytes is written to BD drive buffer 2.
* If you read back the BD buffer 2 right after you have written it then the first 0x10 bytes should match the first 0x10 bytes you sent. The remaining 0x50 bytes you read back should be all 0s.
Your P-Block should look like this after decryption:
<pre>
hexdump -C pblock.bin
00000000  xx xx xx xx xx xx xx xx  xx xx xx xx xx xx xx xx  |................|
00000010  xx xx xx xx xx xx xx xx  xx xx xx xx xx xx xx xx  |................|
00000020  xx xx xx xx xx xx xx xx  xx xx xx xx xx xx xx xx  |................|
00000030  04 00 04 00 00 00 00 00  fd 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000050  xx xx xx xx xx xx xx xx  xx xx xx xx xx xx xx xx  |................|
00000060
</pre>


==Test==
==Test==
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<pre>
<pre>
ls -l pblock.bin
-rw-r--r-- 1 glevand glevand 96 Aug 25 07:44 pblock.bin
# First enable writing BD buffer 2
# First enable writing BD buffer 2


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# Authenticate the BD drive
# Authenticate the BD drive
# Make sure you unmount spuisofs/spuldrfs and unload kernel modules spuisofs/spuldrfs because
# spuisofs/spuldrfs use shared SPU for isolation which used by Dispatcher Manager too


sudo ps3dm -v sm drive_auth 0x29                # It should not fail !!!
sudo ps3dm -v sm drive_auth 0x29                # It should not fail !!!
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* BD buffer 3 is of size 0x670 bytes.
* BD buffer 3 is of size 0x670 bytes.
* S-Block is in decryoted EID2 at offset 0xa0 and of size 0x690.
* S-Block is in decryoted EID2 at offset 0xa0 and of size 0x690.
* The first 0x10 bytes in your S-Block should match the first 0x10 bytes of your P-Block.
* Not all S-Block data is sent to BD drive. Only data starting at offset 0x10 and of size 0x670 bytes is written to BD drive buffer 3.
* If you read back the BD buffer 3 right after you have written it then the first 0x10 bytes should match the first 0x10 bytes you sent and also the first 0x10 bytes which your read bcak from BD buffer 2 after you sent P-Block. The remaining 0x660 bytes you read back should be all 0s.
==Test==
* Tested on my PS3 Slim with OtherOS++.
<pre>
ls -l sblock.bin
-rw-r--r-- 1 glevand glevand 1648 Aug 25 08:57 sblock.bin
# First enable writing BD buffer 3
sudo ./bd_enable_buffer_write -b 3
# Write S-Block to BD buffer 3
sudo ./bd_write_buffer -b 3 -i sblock.bin
</pre>


=Writing New HRL to BD Drive=
=Writing New HRL to BD Drive=
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* HRL is stored in BD buffer 4.
* HRL is stored in BD buffer 4.
* BD buffer 4 is of size 0x8000 bytes.
* BD buffer 4 is of size 0x8000 bytes.
* If you dump HRL buffer after you have written P- and S-blocks but before you have written a new HRL then you wont't see a valid HRL but some junk. That's OK.
* default_hrl.bin: http://www.multiupload.nl/D1DSV0QBJX


<pre>
<pre>
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* You cannot just write a new HRL to BD drive buffer 4. You can actually but it will corrupt your current BD HRL.
* You cannot just write a new HRL to BD drive buffer 4. You can actually but it will corrupt your current BD HRL.
* If you corrupt your HRL then nothing bad will happen but you won't be able to play BD movies.
* If you corrupt your HRL then nothing bad will happen but you won't be able to play BD movies.
* First you have to send P-Block to BD drive, after that authenticate the BD drive and then write a new HRL. Only in this order will it work.
* First you have to send P-Block to BD drive, after that authenticate the BD drive and then write a new HRL. Only in this order will it work.  
* Dump default HRL from Lv2diag.self (size 0x54 bytes) or just use the hexdump i posted here and pad it with 0s to 0x8000 bytes.


<pre>
<pre>
ls -l default_hrl.bin
-rw-r--r-- 1 glevand glevand 32768 Aug 25 00:57 default_hrl.bin
# First enable writing BD buffer 4
# First enable writing BD buffer 4


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00008000
00008000
</pre>
</pre>
{{Linux}}<noinclude>[[Category:Main]]</noinclude>
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