2015-11-25 15:30 skrev Hao Wu:
Hi all,
I just start using Netmap. I want to know can I build the Ethernet
frames and send out via Netmap? I used to build the Ethernet frames via
Libnet, but it is too slow. So I turn to Netmap now. But I have no idea
on
how to write the code using Netmap or what functions should I call?
Any replay is highly appreciated!
It's crazy simple. To open a netmap descriptor:
d = nm_open(ifname, NULL, 0, 0);
To receive a frame:
uint8_t *b = nm_nextpkt(d, &h);
To send a frame:
int n = nm_inject(d, b, len);
Working example from Pen:
https://github.com/UlricE/pen/blob/master/dsr.c
Ulric
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