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Message-Id: <20200706230128.4073544-3-sdf@google.com>
Date: Mon, 6 Jul 2020 16:01:26 -0700
From: Stanislav Fomichev <sdf@...gle.com>
To: netdev@...r.kernel.org, bpf@...r.kernel.org
Cc: davem@...emloft.net, ast@...nel.org, daniel@...earbox.net,
Stanislav Fomichev <sdf@...gle.com>,
Andrii Nakryiko <andriin@...com>
Subject: [PATCH bpf-next v4 2/4] libbpf: add support for BPF_CGROUP_INET_SOCK_RELEASE
Add auto-detection for the cgroup/sock_release programs.
Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
Acked-by: Andrii Nakryiko <andriin@...com>
---
tools/include/uapi/linux/bpf.h | 1 +
tools/lib/bpf/libbpf.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index da9bf35a26f8..548a749aebb3 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -226,6 +226,7 @@ enum bpf_attach_type {
BPF_CGROUP_INET4_GETSOCKNAME,
BPF_CGROUP_INET6_GETSOCKNAME,
BPF_XDP_DEVMAP,
+ BPF_CGROUP_INET_SOCK_RELEASE,
__MAX_BPF_ATTACH_TYPE
};
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 4ea7f4f1a691..88a483627a2b 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -6917,6 +6917,10 @@ static const struct bpf_sec_def section_defs[] = {
BPF_APROG_SEC("cgroup_skb/egress", BPF_PROG_TYPE_CGROUP_SKB,
BPF_CGROUP_INET_EGRESS),
BPF_APROG_COMPAT("cgroup/skb", BPF_PROG_TYPE_CGROUP_SKB),
+ BPF_EAPROG_SEC("cgroup/sock_create", BPF_PROG_TYPE_CGROUP_SOCK,
+ BPF_CGROUP_INET_SOCK_CREATE),
+ BPF_EAPROG_SEC("cgroup/sock_release", BPF_PROG_TYPE_CGROUP_SOCK,
+ BPF_CGROUP_INET_SOCK_RELEASE),
BPF_APROG_SEC("cgroup/sock", BPF_PROG_TYPE_CGROUP_SOCK,
BPF_CGROUP_INET_SOCK_CREATE),
BPF_EAPROG_SEC("cgroup/post_bind4", BPF_PROG_TYPE_CGROUP_SOCK,
--
2.27.0.212.ge8ba1cc988-goog
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