libbpf: Add support for bpf_link-based netns attachment

Add bpf_program__attach_nets(), which uses LINK_CREATE subcommand to create
an FD-based kernel bpf_link, for attach types tied to network namespace,
that is BPF_FLOW_DISSECTOR for the moment.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200531082846.2117903-7-jakub@cloudflare.com
This commit is contained in:
Jakub Sitnicki
2020-05-31 10:28:40 +02:00
committed by Andrii Nakryiko
parent fbdee96fa1
commit 890f25520a
3 changed files with 21 additions and 5 deletions

View File

@@ -262,6 +262,7 @@ LIBBPF_0.0.9 {
bpf_link_get_fd_by_id;
bpf_link_get_next_id;
bpf_program__attach_iter;
bpf_program__attach_netns;
perf_buffer__consume;
ring_buffer__add;
ring_buffer__consume;