[PATCH bpf-next 5/6] libbpf: support BPF_CGROUP_FILE_OPEN in libbpf

Alexei Starovoitov
2018-10-04T02:58:11Z

add support for BPF_CGROUP_FILE_OPEN in libbpf

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
tools/lib/bpf/libbpf.c | 3 +++
tools/testing/selftests/bpf/bpf_helpers.h | 2 ++
2 files changed, 5 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 9e68fd9fcfca..ceb06d4cb20a 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1503,6 +1503,7 @@ static bool bpf_prog_type__needs_kver(enum bpf_prog_type type)
case BPF_PROG_TYPE_LIRC_MODE2:
case BPF_PROG_TYPE_SK_REUSEPORT:
case BPF_PROG_TYPE_FLOW_DISSECTOR:
+ case BPF_PROG_TYPE_FILE_FILTER:
return false;
case BPF_PROG_TYPE_UNSPEC:
case BPF_PROG_TYPE_KPROBE:
@@ -2162,6 +2163,8 @@ static const struct {
BPF_CGROUP_UDP4_SENDMSG),
BPF_EAPROG_SEC("cgroup/sendmsg6", BPF_PROG_TYPE_CGROUP_SOCK_ADDR,
BPF_CGROUP_UDP6_SENDMSG),
+ BPF_APROG_SEC("cgroup/file_open", BPF_PROG_TYPE_FILE_FILTER,
+ BPF_CGROUP_FILE_OPEN),
};

#undef BPF_PROG_SEC_IMPL
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index 1d407b3494f9..2d5b1a2652e2 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -155,6 +155,8 @@ static struct bpf_sock *(*bpf_sk_lookup_udp)(void *ctx,
(void *) BPF_FUNC_sk_lookup_udp;
static int (*bpf_sk_release)(struct bpf_sock *sk) =
(void *) BPF_FUNC_sk_release;
+static int (*bpf_get_file_path)(struct bpf_file_info *file, void *buf, int size) =
+ (void *) BPF_FUNC_get_file_path;

/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions
--
2.17.1