Re: [B2-devel] sheep_net in latest kernel

[Ricky Z. <zha...@gm...>]

I wrote a Python script to convert communication packet between Guest OS
and sheep_net into hex dump for wireshark.

I found two bugs in sheep_net module. I have fixed it. Another Basilisk II
user in France also confirmed that my fix works for his Linux host in PPC.

I will send a pull request later.

On Thu, Aug 11, 2016 at 7:26 PM, Ricky <zha...@gm...> wrote:

> I'm interested in making it sheep_net and TCP/IP ethernet works again on
> Mac 7.5 under Linux host. But I found that TCP is not quite working. Here
> is my settings:
>
>    - Fedora 24, 4.5.7-300.fc24.x86_64
>    - Mac 7.6 with TCP/IP stack
>    - sheep_net modules (I fixed new sk_alloc function call after 4.2
>    kernel. I haven't sent pull request yet since it doesn't work anyway)
>
> I debugged it by capturing ethernet packet between Basilisk II(B) and
> remote host (R). I found that during TCP 3 way handshakes,
> 1. B->R (SYN)
> 2. B<-R (SYN+ACK)
> 3. no more response from B and B keeps on retransmit step 1 again and
> again.
>
> It seems like packet in step 2 didn't get received by Mac. I enabled debug
> in BasiliskII/src/Unix/ether_unix.cpp and did find that the exact packet
> in step 2 was received from /dev/sheep_net by B. But it seems that Mac
> didn't get it.
>
> I have zero experiences in debugging 68K emulation part. I wonder:
>
>    - if anyone can suggest me an easy way to debug networking inside Mac
>    7.5, ie after interrupt finish
>    - the last settings that your sheep_net modules works
>
> I patched sheep_net for 3.15 kernel before. I remembers I could ftp and
> ping from the same Mac 7.5 image. But I can't http.
> TIA
>