tree 980d642f9058eb893b7f689ddf1bb9749a2bd74b
parent 5b32a23e1d879b78ee72144311314eccf7581bf4
author Nikita V. Shirokov <tehnerd@tehnerd.com> 1542776156 -0800
committer Daniel Borkmann <daniel@iogearbox.net> 1542839601 +0100

bpf: adding support for map in map in libbpf

idea is pretty simple. for specified map (pointed by struct bpf_map)
we would provide descriptor of already loaded map, which is going to be
used as a prototype for inner map. proposed workflow:
1) open bpf's object (bpf_object__open)
2) create bpf's map which is going to be used as a prototype
3) find (by name) map-in-map which you want to load and update w/
descriptor of inner map w/ a new helper from this patch
4) load bpf program w/ bpf_object__load

Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>