Commit 063cc9f0 authored by Andrey Ignatov's avatar Andrey Ignatov Committed by Alexei Starovoitov
Browse files

libbpf: Support sysctl hook 



Support BPF_PROG_TYPE_CGROUP_SYSCTL program in libbpf: identifying
program and attach types by section name, probe.

Signed-off-by: default avatarAndrey Ignatov <rdna@fb.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 196398d4

tools/lib/bpf/libbpf.c

+3 −0
Original line number Diff line number Diff line
@@ -2064,6 +2064,7 @@ static bool bpf_prog_type__needs_kver(enum bpf_prog_type type) 
	case BPF_PROG_TYPE_TRACEPOINT:

	case BPF_PROG_TYPE_RAW_TRACEPOINT:

	case BPF_PROG_TYPE_PERF_EVENT:

	case BPF_PROG_TYPE_CGROUP_SYSCTL:

		return false;

	case BPF_PROG_TYPE_KPROBE:

	default:
@@ -3004,6 +3005,8 @@ static const struct { 
						BPF_CGROUP_UDP4_SENDMSG),

	BPF_EAPROG_SEC("cgroup/sendmsg6",	BPF_PROG_TYPE_CGROUP_SOCK_ADDR,

						BPF_CGROUP_UDP6_SENDMSG),

	BPF_EAPROG_SEC("cgroup/sysctl",		BPF_PROG_TYPE_CGROUP_SYSCTL,

						BPF_CGROUP_SYSCTL),

};



#undef BPF_PROG_SEC_IMPL

tools/lib/bpf/libbpf_probes.c

+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ probe_load(enum bpf_prog_type prog_type, const struct bpf_insn *insns, 
	case BPF_PROG_TYPE_LIRC_MODE2:

	case BPF_PROG_TYPE_SK_REUSEPORT:

	case BPF_PROG_TYPE_FLOW_DISSECTOR:

	case BPF_PROG_TYPE_CGROUP_SYSCTL:

	default:

		break;

	}

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