Hello all,
I am trying to do a tcpdump filter like below
The idea is to filter all ethernet frames and where the frame ends as I
understand keyword *len *has the total length of the captured packet,
substracts 85 positions and compare if byte in position len - 85 is equal
to hex 0x2.
Does anybody
Hello BSD folks,
I am developing a networking application in C and I have a question
regarding BPF (Berkeley Packet Filters),
I will give you an idea of the app first, I need to send a packet from
machine A to machine B (any kind of packet) so for this I wrote a packet
generator application which
Hello,
I have a question regarding Berkeley Packet filter, which is Can I read an
incoming packet length with BPF, I am working on a project that requires to
filter the receiving packets in the kernel before they get to userspace,
but I need to be able to read the packet length when applying BPF b
