[PATCH bpf-next 08/21] libbpf: Support sysctl hook

[Andrey Ignatov]

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

Signed-off-by: Andrey Ignatov <r...@fb.com>
---
 tools/lib/bpf/libbpf.c        | 3 +++
 tools/lib/bpf/libbpf_probes.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 5e977d2688da..70900012eb8c 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1689,6 +1689,7 @@ 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:
@@ -2626,6 +2627,8 @@ 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
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index 8c3a1c04dcb2..0f25541632e3 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -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;
        }
-- 
2.17.1