diff mbox series

[bpf-next,1/2] bpf: add get_netns_cookie helper to cgroup_skb programs

Message ID 20250225125031.258740-1-mahe.tardy@gmail.com (mailing list archive)
State New
Delegated to: BPF
Headers show
Series [bpf-next,1/2] bpf: add get_netns_cookie helper to cgroup_skb programs | expand

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Commit Message

Mahe Tardy Feb. 25, 2025, 12:50 p.m. UTC 
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 <mahe.tardy@gmail.com>
---
 net/core/filter.c | 2 ++
 1 file changed, 2 insertions(+)

--
2.34.1
diff mbox series

Patch

diff --git a/net/core/filter.c b/net/core/filter.c
index 2ec162dd83c4..827108c6dad9 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: