Re: About Connection between PPP and linux Sockets

[Steven <liu-dj@neusoft.com>]

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Hi Marcel,

>> I have a little question just as the title said?
>> In Ofono how to connect PPP to Linux socket, when we receive packet from 
>> network, how the packet go through the kernel to application？
>>
>> modem -->PPP-->? --> linux kernel(network part)--> socket --> application?
> 
> it is more like this:
> 
> modem -> TTY -> PPP -> TUN/TAP -> Kernel Net-Stack -> socket -> application.
> 
> With the TTY being in kernel, the PPP being in userspace, and TUN/TAP
> etc. begin in the kernel again.
> 
> A future enhancement is to use the kernel PPP layer, but we haven't
> gotten there yet.

I got it, thanks

B.R

Steven
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