From: Mahe Tardy Date: Tue, 25 Feb 2025 12:50:30 +0000 (+0000) Subject: bpf: add get_netns_cookie helper to cgroup_skb programs X-Git-Tag: v6.15-rc1~98^2~47 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c221d3744ad38a9655aba8235e1d783c6d4aed5a;p=thirdparty%2Fkernel%2Flinux.git bpf: add get_netns_cookie helper to cgroup_skb programs This is needed in the context of Cilium and Tetragon to retrieve netns cookie from hostns when traffic leaves Pod, so that we can correlate skb->sk's netns cookie. Signed-off-by: Mahe Tardy Link: https://lore.kernel.org/r/20250225125031.258740-1-mahe.tardy@gmail.com Signed-off-by: Alexei Starovoitov --- diff --git a/net/core/filter.c b/net/core/filter.c index 2ec162dd83c46..827108c6dad9f 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -8075,6 +8075,8 @@ sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_skb_load_bytes_relative_proto; case BPF_FUNC_get_socket_cookie: return &bpf_get_socket_cookie_proto; + case BPF_FUNC_get_netns_cookie: + return &bpf_get_netns_cookie_proto; case BPF_FUNC_get_socket_uid: return &bpf_get_socket_uid_proto; case BPF_FUNC_perf_event_output: