Di Zhu wrote: > Right now there is no way to query whether BPF programs are > attached to a sockmap or not. > > we can use the standard interface in libbpf to query, such as: > bpf_prog_query(mapFd, BPF_SK_SKB_STREAM_PARSER, 0, NULL, ...); > the mapFd is the fd of sockmap. > > Signed-off-by: Di Zhu <zhudi2@xxxxxxxxxx> > --- LGTM, lets add a small test here as well ./tools/testing/selftests/bpf/prog_tests/sockmap_basic.c Looks like we can just copy the sk_lookup.c test case which does the query tests for BPF_SK_LOOKUP. Also I don't think its required for this series, but a bpftool patch to query it would be useful as well if its doesn't just work with above. Thanks! John
