[PATCH bpf-next 3/7] libbpf: support sockopt hooks

[Stanislav Fomichev]

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

Signed-off-by: Stanislav Fomichev <s...@google.com>
---
 tools/lib/bpf/libbpf.c        | 5 +++++
 tools/lib/bpf/libbpf_probes.c | 1 +
 2 files changed, 6 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index ba89d9727137..cd3c692a8b5d 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -2243,6 +2243,7 @@ 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:
@@ -3196,6 +3197,10 @@ static const struct {
                                                BPF_CGROUP_UDP6_SENDMSG),
        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
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index 5e2aa83f637a..7e21db11dde8 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -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;
        }
-- 
2.22.0.rc1.311.g5d7573a151-goog