masaq- / macemu Goto Github PK

I'm aware that you send a couple pull requests on sheep_net module and virtual ethernet in 68K Mac in upstream BasiliskII.

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 you can suggest me an easy way to debug networking
• the last settings that your sheep_net modules works

I patched sheep_net for 3.15 kernel before. I remembers I can ftp and ping from the same Mac 7.5 image. But I can't http.

TIA