MobileRead Forums - View Single Post - BackDoorLock hack

dsmid · 03-02-2013, 06:21 AM

I have an idea how to stop pushed updates even on KPW and KT but I can't implement it because I don't have any KPW or KT device.

In case someone wants to give it a try:

First you need otaupd to release DBus service name com.lab126.ota. That's easy: search for com.lab126.ota in the binary and replace it by e.g. com.lab126.pta (rhymes with PITA).
Then code a replacement DBus service that registers name com.lab126.ota for itself. Most of the time it would just pass all calls to com.lab126.pta via DBus but when a suspicious request is detected (one that looks like pushed update), it would just log it instead.
You can use any DBus stack for that, I prefer QtDBus as it worked OK on Kindle 3 last time I tried.

03-02-2013, 06:21 AM	#65
dsmid Linux devotee Posts: 598 Karma: 2069047 Join Date: Feb 2011 Device: Kindle 3, Kindle 4B, Kindle PW2	I have an idea how to stop pushed updates even on KPW and KT but I can't implement it because I don't have any KPW or KT device. In case someone wants to give it a try: First you need otaupd to release DBus service name com.lab126.ota. That's easy: search for com.lab126.ota in the binary and replace it by e.g. com.lab126.pta (rhymes with PITA). Then code a replacement DBus service that registers name com.lab126.ota for itself. Most of the time it would just pass all calls to com.lab126.pta via DBus but when a suspicious request is detected (one that looks like pushed update), it would just log it instead. You can use any DBus stack for that, I prefer QtDBus as it worked OK on Kindle 3 last time I tried.