Commit 4cdbfb59 authored by Stanislav Fomichev's avatar Stanislav Fomichev Committed by Alexei Starovoitov
Browse files

libbpf: support sockopt hooks 



Make libbpf aware of new sockopt hooks so it can derive prog type
and hook point from the section names.

Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Martin Lau <kafai@fb.com>
Signed-off-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent aa6ab647

tools/lib/bpf/libbpf.c

+5 −0
Original line number Diff line number Diff line
@@ -2646,6 +2646,7 @@ static bool bpf_prog_type__needs_kver(enum bpf_prog_type type) 
	case BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE:

	case BPF_PROG_TYPE_PERF_EVENT:

	case BPF_PROG_TYPE_CGROUP_SYSCTL:

	case BPF_PROG_TYPE_CGROUP_SOCKOPT:

		return false;

	case BPF_PROG_TYPE_KPROBE:

	default:
@@ -3604,6 +3605,10 @@ static const struct { 
						BPF_CGROUP_UDP6_RECVMSG),

	BPF_EAPROG_SEC("cgroup/sysctl",		BPF_PROG_TYPE_CGROUP_SYSCTL,

						BPF_CGROUP_SYSCTL),

	BPF_EAPROG_SEC("cgroup/getsockopt",	BPF_PROG_TYPE_CGROUP_SOCKOPT,

						BPF_CGROUP_GETSOCKOPT),

	BPF_EAPROG_SEC("cgroup/setsockopt",	BPF_PROG_TYPE_CGROUP_SOCKOPT,

						BPF_CGROUP_SETSOCKOPT),

};



#undef BPF_PROG_SEC_IMPL

tools/lib/bpf/libbpf_probes.c

+1 −0
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@ probe_load(enum bpf_prog_type prog_type, const struct bpf_insn *insns, 
	case BPF_PROG_TYPE_SK_REUSEPORT:

	case BPF_PROG_TYPE_FLOW_DISSECTOR:

	case BPF_PROG_TYPE_CGROUP_SYSCTL:

	case BPF_PROG_TYPE_CGROUP_SOCKOPT:

	default:

		break;

	}

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