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  1. #251
    Junior Member Krachwas's Avatar
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    Yep. We would have to patch the kernel in order to use syscalls. And syscalls are at this point necessary for existing backup manager.

    we have to program a new backup manager without syscalls.

    multiman works btw. on 80gb fat pal

  2. #252
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    What exactly are syscalls? Would patching the kernel be easy to do with all thats been released. It would require modifying the CFW correct?

    EDIT: sorry i know what syscalls are now.. "Syscall - In computing, a system call is the mechanism by which a program requests a service from an operating system's kernel."

    but would this be easy to modify?
    Last edited by Aodhan; 01-09-2011 at 06:29 PM

  3. #253
    i dont know either many things about it. but syscalls just mounts virtual the "disc" as the normal disc inserted. that was the way why you must have a cd in your drive while playing games.

    syscallxx("dev_usb000/gamez/bles128301", "dev_bdvd/") or something like that

    i'm just in my education for programmer, but this is not the same

    greetings
    Last edited by Krachwas; 01-09-2011 at 06:33 PM

  4. #254
    Thanks for the help but would modifying the CFW to modify the kernel be an easy task or would it require additional exploits.

  5. #255
    i think it would require additional exploits. we just have to wait if someone managed it without syscalls.

    greets

  6. #256
    I recall with multiman you could load games directly, since we dont have apps\games above install packages anymore, tho it does not work.. everytime we try launching game without exiting to xmb it is exiting.

  7. #257
    could we use the kakarotos cfw with the apps/games thing above pkg installer to do this? or wouldnt it work?

  8. #258
    Is there anything that this man can’t do? Dean, who brought you multiMAN, the greatest backup manager ever created in the scene is planning to make multiMAN compatible with the latest CFW sensation from Geohot. The ideas came after Dean has tested Geohot’s public signing tools with his multiMAN only to find out that it fails. That’s just not the end of the story though..

    I was taking a bath and got some nice ideas… apparently while geohot released the signing tools (which don’t work for me, but that’s expected since no CLI usage is supplied nor anything useful).

    Now as a simple POC (proof of concept) that a game can run without ANY SYSCALLS involved (from internal HDD) I created a small application. Here are the steps:

    1) Get a game and write down the game ID (let’s say XXXX12345)
    2) Copy the game contents to /dev_hdd0/game/XXXX12345 (no PS3_GAME folder involved)
    3) Rename /dev_hdd0/game/XXXX12345/USRDIR/EBOOT.BIN to MM_EBOOT.BIN
    4) Install the magic MYGAME.pkg (the one I created)
    5) Run your game backup from the XMB without a blu-ray game disc inserted and without /app_home or any other mappings (no syscalls used by the small app)
    6) Game starts and plays as if it was ran from BD-ROM disc
    7) Should you decide to update the game to a later version 2 more steps are requred but you get the general idea.
    The good thing is that game saves, tropheys and updates work, since the game is spawned with the original GAME ID.

    Btw the ‘magic app’ is just 4 lines of code. I’ll now test a game (Uncharted 2) to check if all is okay when there are “special circumstances”.

    Asked whether he will implement euss’s method, here’s what he got to say: No, it doesn’t require any game EBOOT.BIN modifications. The original, untouched, signed, encrypted game EBOOT.BIN is used.

    Not to mention that you can’t simply “replace dev_bdvd with dev_hdd0/path_to_game” because there is NOT ENOUGH SPACE for the variables used.

    And more to his findings on the method. Actually I was using this method for almost a month to test some ideas with NON WORKING GAMES like PriceOfPercia TheForgottenSands. Never thought about it as ‘real life’ applicable implementation, since all syscalls and stuff was available via the JB payload. Today it got me thinking. Let me check few other games and I’ll get back to you.

  9. #259
    with all this signing and encryption talk, i have a really stupid question.

    Ps3 gamesaves, are they like the psp in the sense that they are encrypted via a key on the system? Would it be possable to make an app/homebrew that dissables this or decrypts them as well?

  10. #260
    Quote Originally Posted by IndyColtsFan84 View Post
    You must put output to EBOOT.BIN, NPDRM cares about the output file name, do not rename .self output to EBOOT.BIN
    Yea, I'm doing all that... frustrating... I'm gonna go ahead and upgrade to 3.55, rarely play my PS3 anyway since I'm a PC gamer, will give me a chance to work out my kinks...

 

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