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Simple bpf_map reader prog
Can you give link or some code to understand, how can i get data from maps in c. I saw example, but as i begginer in such programming, i can understand map_fd, obj...etc.
I create xdp prog, inserted in via ip link set... And can see data with bpftool in hex. How can i simply write a prog to get data from map without writing code to load. I am now at start of the way )
This is exactly what `bpftool map` is doing. The source codetoggle quoted message Show quoted text
You can find the map you are interested by iterating all the maps in the system
and then iterating to get all map key/values for that map.
On Mon, Dec 24, 2018 at 9:41 AM Иван Иванов <iwan12iwan12@...> wrote:
Can not now to compil my prog, to use bpf_get_mad_fd_by_id for just beggining, because dont know enough how to do it. To compile kern prog a lot of examples, but userspace prog can not find... Can you help me with link how to do it?
P.s. tried to make key size of struct 9 bytes, it does not set to device because of error, about indirect access to mem. I can make only with 4, 8, 12, 16....?
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