Hacking [Release] 3DSafe: In-NAND PIN lock for 3DS

[mashers]

You're attempting to allocate ~492 KB on the stack.... If you check out Luma3DS's splash screen code ... it loads the splash screen files directly into the framebuffer.

Thanks again for this hint. In the end I did this. Basically there's a fast drawing method which is for fullscreen images, which loads the whole image data directly to the framebuffer. If the image is smaller than the whole screen, then it's loaded directly to the framebuffer line by line so that it can be repositioned within the framebuffer (to allow x/y coordinate positions).

Drawing fullscreen images is considerably faster than it was before, as is drawing smaller images. It also, of course, now deals with images of any size without the width having to be a multiple of the column width I was reading in before.

Thanks again!

 

[A_Bricked_Guy]

Hi, i've been looking for a PIN system like this since even before buying my N3DSXL, and got very excited when Luma implemented it, but it didn't really make the console that safe. I think this one is almost perfect, and since this is all for the security of our sacred consoles, I've got an idea that would make our expensive 3DS's even safer, and I think will give 3DSafe a very important point to be installed on every console (I have no idea about the technical details behind, hopefully it is feasible):

-Ability to make notes on the bottom screen: We could just lose our console and not getting it robbed, and hopefully someone with the willing to return it finds it (anyway they can't do much with the console thanks to the lock), a customizable bottom screen allows us to have permanent owner's information (such as name and phone number) burned at the bottom screen unless it gets back to its original owner, so that wherever the console ends, it will have our prints on it, well, you get all this is able to do.

Please i'd like to know if this is possible and whether you are willing to do it, anyway, enjoying it as it is, nice work

 

[gamesquest1]

Hi, i've been looking for a PIN system like this since even before buying my N3DSXL, and got very excited when Luma implemented it, but it didn't really make the console that safe. I think this one is almost perfect, and since this is all for the security of our sacred consoles, I've got an idea that would make our expensive 3DS's even safer, and I think will give 3DSafe a very important point to be installed on every console (I have no idea about the technical details behind, hopefully it is feasible):

-Ability to make notes on the bottom screen: We could just lose our console and not getting it robbed, and hopefully someone with the willing to return it finds it (anyway they can't do much with the console thanks to the lock), a customizable bottom screen allows us to have permanent owner's information (such as name and phone number) burned at the bottom screen unless it gets back to its original owner, so that wherever the console ends, it will have our prints on it, well, you get all this is able to do.

Please i'd like to know if this is possible and whether you are willing to do it, anyway, enjoying it as it is, nice work

i mentioned this earlier in the thread (or it may have been the one where this project started) but mashers said he will look into it, from the past few posts it may be that we may get the ability to add our own top screen logo, in which case we could put any message we want up there i.e contact info etc

 

[Giodude]

The old release let me just boot from a .cfg file without anything being installed to the nand. I dont want to risk anything, and i am not using the buggy as all hell luma 6.0. can is there just a custom payload?

 

[ghostpotato]

Not sure if this has been asked before and whether or not it's feasible, but is it possible to use this with AuroraWright's fork of A9LH (i.e. add/edit/delete the necessary files), or would I be better off switching to ShadowNAND to use this?

 

[mashers]

@A_Bricked_Guy
Yes adding contact details is a planned feature.

@Giodude
I don't understand. There has never been a cfg file for 3DSafe, and it has nothing to do with Luma.

@ghostpotato
It doesn't really make any difference which A9LH payload this is based on. I only chose ShadowNAND because it's small.

 

[MadMageKefka]

It doesn't really make any difference which A9LH payload this is based on. I only chose ShadowNAND because it's small.

Would it be possible to release a version without shadownand? I read in a thread earlier today that one side effect of shadownand is that if you boot your 3ds without the sd card, then reboot with it inserted after, it re-wraps all your apps into the present icon. With the amount of icons I have on my 3ds, this would be REALLY annoying.

 

[mashers]

Would it be possible to release a version without shadownand? I read in a thread earlier today that one side effect of shadownand is that if you boot your 3ds without the sd card, then reboot with it inserted after, it re-wraps all your apps into the present icon. With the amount of icons I have on my 3ds, this would be REALLY annoying.

That won't be a problem since 3DSafe doesn't support booting without SD card.

 

[MadMageKefka]

That won't be a problem since 3DSafe doesn't support booting without SD card.

oic. perfect.

 

[mashers]

Now that I've got image display working on both screens, I can do this

The message is just an image displayed on the bottom screen so you can put anything there. It automatically checks for a file in NAND called 3dsafelost.bin, and if it's there it displays it on the bottom screen. I'm going to add some more images to pretty up the whole thing, and then add a function which checks for the presence of those files on SD, and if they're there it will offer to move them to NAND.

 

[mashers]

Graphical PIN entry coming soon

--------------------- MERGED ---------------------------

On a roll doing the graphics

 

[Quantumcat]

This whole time I thought it was a touchscreen numerical PIN entry

 

[mashers]

This whole time I thought it was a touchscreen numerical PIN entry

No, it uses the buttons. I don't know if A9LH has access to the touch screen.

 

[Quantumcat]

No, it uses the buttons. I don't know if A9LH has access to the touch screen.

Yeah, that makes sense!!
Great adding the contact details. If the PIN length is variable I might install this with like 2 buttons as the PIN so easy to remember, but be able to show contact details if it's lost.

 

[mashers]

Yeah, that makes sense!!
Great adding the contact details. If the PIN length is variable I might install this with like 2 buttons as the PIN so easy to remember, but be able to show contact details if it's lost.

Yep, the PIN length can be as little as one character

--------------------- MERGED ---------------------------

Graphical options screen

By the way, these graphics screens will all be made available in the release simultaneously. Once I've done them all, I need to add a user-friendly way of converting PNGs to rotated bin files and installing them to NAND. That will probably be a separate homebrew app rather than integrated into 3DSafe as the PNG library is much too big to fit inside an A9LH payload.

 

[ihaveahax]

mostly just nitpicking, but I thought the otp.bin filename doesn't need to be lowercase, as FAT32 isn't case-sensitive.

 

[capito27]

No, it uses the buttons. I don't know if A9LH has access to the touch screen.

as far as i know, the touch screen is far from being initialized at a9lh run time, so no, a9lh in itself doesn't have access to it, but you could always try and initialize it manually, i have not clue how you would go about doing that tho.

 

[mashers]

mostly just nitpicking, but I thought the otp.bin filename doesn't need to be lowercase, as FAT32 isn't case-sensitive.

I tried it in upper case, but it wouldn't find the file. I think fatfs uses string comparison to check if files exist or something, so if the case doesn't match it thinks the file doesn't exist.

 

[Demnyx]

thats a very good app , nice work !
but , if i have a9lh , so if i install 3dsafe , it will change it to shadownand ?

 

[mashers]

thats a very good app , nice work !
but , if i have a9lh , so if i install 3dsafe , it will change it to shadownand ?

Thanks! It will change your A9LH payload (the part in NAND) to 3DSafe which is based (loosely now) on ShadowNAND, but whatever payload you have at /arm9loaderhax.bin on your SD card will be booted after entering the PIN. So if you are using Luma or any other CFW, it will still be your CFW.