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libbpf: Add support for BPF_CGROUP_INET_SOCK_RELEASE

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Add auto-detection for the cgroup/sock_release programs.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200706230128.4073544-3-sdf@google.com
This commit is contained in:
Stanislav Fomichev 2020-07-06 16:01:26 -07:00 committed by Daniel Borkmann
parent f5836749c9
commit e8b012e9fa
2 changed files with 5 additions and 0 deletions
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1
tools/include/uapi/linux/bpf.h
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@ -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
};

4
tools/lib/bpf/libbpf.c
View File

@ -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,