Skype app will not be available

[gogo]

I tried to install it but having Skype(app samsung) already started for samygo. Skype \ ulango starts and remains in loading.
But I think with reset and install Skype from ulango works. After making new root.
If anyone has time to try ...

I tried but...
It's not possible to install Skype from ulango.
Because this:
https://forum.samygo.tv/viewtopic.php?f ... Fix#p56373

[mad_ady]

I'd like to start a discussion and hear some ideas about what we can do to keep skype installed (or install it by force) in order to keep root working. Feel free to add your ideas so that we can try and be ready

Methods proposed:
1. Intercepting the communication between TV and store and rewriting the responses to keep skype listed as an APP.
Problems:
a) communication with the store is done using HTTPS. One would have to inject a certificate into the firmware in order to be able to use a permanent HTTPS proxy to modify the communication.
b) I'm not sure if we know what messages we can expect from the communication, but we could monitor regular communication and make an assumption. There was a thread around here that discusses this, but I can't find it right now.

2. Changing skype's permissions to make it unremovable. This could be done, for instance, by marking the files immutable (chattr +i):

A file with the 'i' attribute cannot be modified: it cannot be deleted or renamed, no link can be created to this file
and no data can be written to the file. Only the superuser or a process possessing the CAP_LINUX_IMMUTABLE capability
can set or clear this attribute.

It would make the file(s) read-only and undeleteble (even by root). It requires that the files are stored on a ext2/3/4 filesystem, but I guess they already are. In theory, when the time comes the TV will get the order to delete skype, it will try and fail. What happens next I have no idea, but it's easy to implement (once you know where all the files are).

Let's hear other proposals! Be creative!

[mackowiakp]

I try such in Skype widget subdir:

Code: Select all

root@tv:/mtd_rwcommon/widgets/normal/111199000250 # date > xxx
root@tv:/mtd_rwcommon/widgets/normal/111199000250 # cat xxx
Tue Mar 29 06:12:08 UTC 2016
root@tv:/mtd_rwcommon/widgets/normal/111199000250 # chattr -i xxx 
chattr: reading flags on xxx: Inappropriate ioctl for device

As You can see, such operation with chattr - i is not possible on filesystem type of /mtd_rwcommon. loook the way it is mounted:

Code: Select all

root@tv:/mtd_rwcommon/widgets/normal/111199000250 # mount| grep /mtd_rwcommon
/dev/mmcblk0p19 on /mtd_rwcommon type rfs (rw,relatime,vfat,llw,iocharset=utf8)

[mad_ady]

Thanks for trying... I was hoping it would be ext, I haven't heard of rfs... Back to the drawing board

RFS is a Samsung file system for user space applications formatted as RFS (Robust File System). RFS is a FAT 16/32 based file system with a sort of journalling system on it. The code to build and use the RFS file system is proprietary and only used in Samsung equipment, such as TV's, BluRay players and cellphones.

[mackowiakp]

Dont know does it help or not. I made a copy of all Skype related files to "user" part of widgets. So I have at this moment two Skype icons, one "normal" and one labelled as "user". Hope "user" widgets will not be removed after 2 june

[6670]

I don't understand where is the problem with Skype and ulango.
If someone can explain better.
I install it regularly, Skype and many other app.
I can not know if it works correctly, I should do root again ,but I install it and launch

[sectroyer]

Skype will NOT work without Samsung SERVER support. They close server on 2nd june

[LS29]

Skype will NOT work without Samsung SERVER support. They close server on 2nd june

But, for root work, we need server?

[mackowiakp]

I dont need Skype. But Skype is needed for SamyGo extension. So - as I understand - SamyGo uses some libs or whatever from Skype. That way, most of people wants to keep Skype binaries for SamyGo needs. Correct me if I am wrong.

[sectroyer]

We will see. No point in guess. And NOT Skype is NOT needed for SamyGO. We have other ways