Hello all,
I have changed the UDP packet handler to be able to count packets in fastest
possible manner. The best idea for me was to intercept the packet just before
sending it to user space. As I am not interested in actual packets I just get
the counters from the socket periodicly. The most important is packet loss
counter which is calculated from sequence number (first byte in each packet's
payload).
You can see this add-on like the opposite site for PKTGEN which is already part
of the kernel.
But here is the problem:
I have to introduce new ioctl numbers for the socket, to:
- be able to put the socket in 'counting' mode
- get the counters from the socket to the application
... and I don't know how to do it.
At the moment (to see it works) I just put some dummy ioctl numbers into the
code. Inside the patch (see attachment) there is also an example and short
documentation.
Can someone please help me introduce new ioctl numbers for UDP sockets corectly.
best regards,
Zoran Bosnjak
<<udp_patch-linux-2.4.27>> <<udp_patch-linux-2.6.9>>
udp_patch-linux-2.4.27
Description: udp_patch-linux-2.4.27
udp_patch-linux-2.6.9
Description: udp_patch-linux-2.6.9
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