Commit e8b012e9 authored by Stanislav Fomichev's avatar Stanislav Fomichev Committed by Daniel Borkmann
Browse files

libbpf: Add support for BPF_CGROUP_INET_SOCK_RELEASE 



Add auto-detection for the cgroup/sock_release programs.

Signed-off-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarAndrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200706230128.4073544-3-sdf@google.com
parent f5836749

tools/include/uapi/linux/bpf.h

+1 −0
Original line number Diff line number Diff line
@@ -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

};

tools/lib/bpf/libbpf.c

+4 −0
Original line number Diff line number Diff line
@@ -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,

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