From: Andrey Ignatov <rdna@fb.com>
Date: Tue, 17 Apr 2018 10:28:45 -0700
Subject: libbpf: Support guessing post_bind{4,6} progs
Patch-mainline: v4.18-rc1
Git-commit: 81efee75c4a8210cac6eb791892f974dfcfc24b0
References: bsc#1109837
libbpf can guess prog type and expected attach type based on section
name. Add hints for "cgroup/post_bind4" and "cgroup/post_bind6" section
names.
Existing "cgroup/sock" is not changed, i.e. expected_attach_type for it
is not set to `BPF_CGROUP_INET_SOCK_CREATE`, for backward compatibility.
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
tools/lib/bpf/libbpf.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1859,6 +1859,9 @@ static void bpf_program__set_expected_at
#define BPF_PROG_SEC(string, ptype) BPF_PROG_SEC_FULL(string, ptype, 0)
+#define BPF_S_PROG_SEC(string, ptype) \
+ BPF_PROG_SEC_FULL(string, BPF_PROG_TYPE_CGROUP_SOCK, ptype)
+
#define BPF_SA_PROG_SEC(string, ptype) \
BPF_PROG_SEC_FULL(string, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, ptype)
@@ -1889,10 +1892,13 @@ static const struct {
BPF_SA_PROG_SEC("cgroup/bind6", BPF_CGROUP_INET6_BIND),
BPF_SA_PROG_SEC("cgroup/connect4", BPF_CGROUP_INET4_CONNECT),
BPF_SA_PROG_SEC("cgroup/connect6", BPF_CGROUP_INET6_CONNECT),
+ BPF_S_PROG_SEC("cgroup/post_bind4", BPF_CGROUP_INET4_POST_BIND),
+ BPF_S_PROG_SEC("cgroup/post_bind6", BPF_CGROUP_INET6_POST_BIND),
};
#undef BPF_PROG_SEC
#undef BPF_PROG_SEC_FULL
+#undef BPF_S_PROG_SEC
#undef BPF_SA_PROG_SEC
static int bpf_program__identify_section(struct bpf_program *prog)