Write RPMB fails about mtkclient

[KeuntaeShin]

Today, i added statements for calling it you want, but i'm not sure it will work or not:

/git/mtkclient/mtk

                elif subcmd == "rpmb":
                    rpmb_subcmd = args.rpmb_subcmd
                    if rpmb_subcmd is None:
                        print('Available xflash rpmb cmds are: [r w]')
                    '''
                        Keuntae Shin: add rpmb_subcmd for writing
                    '''
                    if rpmb_subcmd == "r":
                        mtk.daloader.read_rpmb(args.filename)                        
+                  elif rpmb_subcmd == "w":
+                      mtk.daloader.write_rpmb(args.filename)

Also, i added several statements to respond unexpected exception of original code, that is raised by return code from devices. I'm afraid that it would depend on target devices, so i omit it.

And the command i used:
python3 mtk xflash rpmb w --filename /git/mtkclient/rpmb_image

[bkerler]

The current payload has a small bug, support should be added on the next release

[jamb84]

i really don't want to be one of those "weneta" people, but i am curious if you have an idea of when the payload fix might be released? will it allow us to clean the rpmb?

[jamb84]

is there any indication of what the bug is? i've done everything i know to reverse the payloads myself and i'm struggling.

[bkerler]

Yes. It's the way how some devices create the rpmb key. I will soon have a closer look

[bkerler]

Write RPMB was added, but there is a bug in Init RPMB right now.

[bkerler]

Keeping this issue alive ... work is in progress.