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From: Jakub Sitnicki <jakub@cloudflare.com>
To: netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: dccp@vger.kernel.org, kernel-team@cloudflare.com,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Gerrit Renker <gerrit@erg.abdn.ac.uk>,
	Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH bpf-next 14/17] libbpf: Add support for SK_LOOKUP program type
Date: Wed,  6 May 2020 14:55:10 +0200	[thread overview]
Message-ID: <20200506125514.1020829-15-jakub@cloudflare.com> (raw)
In-Reply-To: <20200506125514.1020829-1-jakub@cloudflare.com>

Make libbpf aware of the newly added program type, and assign it a
section name.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
---
 tools/lib/bpf/libbpf.c        | 3 +++
 tools/lib/bpf/libbpf.h        | 2 ++
 tools/lib/bpf/libbpf.map      | 2 ++
 tools/lib/bpf/libbpf_probes.c | 1 +
 4 files changed, 8 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 977add1b73e2..74f4a15dc19e 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -6524,6 +6524,7 @@ BPF_PROG_TYPE_FNS(perf_event, BPF_PROG_TYPE_PERF_EVENT);
 BPF_PROG_TYPE_FNS(tracing, BPF_PROG_TYPE_TRACING);
 BPF_PROG_TYPE_FNS(struct_ops, BPF_PROG_TYPE_STRUCT_OPS);
 BPF_PROG_TYPE_FNS(extension, BPF_PROG_TYPE_EXT);
+BPF_PROG_TYPE_FNS(sk_lookup, BPF_PROG_TYPE_SK_LOOKUP);
 
 enum bpf_attach_type
 bpf_program__get_expected_attach_type(struct bpf_program *prog)
@@ -6684,6 +6685,8 @@ static const struct bpf_sec_def section_defs[] = {
 	BPF_EAPROG_SEC("cgroup/setsockopt",	BPF_PROG_TYPE_CGROUP_SOCKOPT,
 						BPF_CGROUP_SETSOCKOPT),
 	BPF_PROG_SEC("struct_ops",		BPF_PROG_TYPE_STRUCT_OPS),
+	BPF_EAPROG_SEC("sk_lookup",		BPF_PROG_TYPE_SK_LOOKUP,
+						BPF_SK_LOOKUP),
 };
 
 #undef BPF_PROG_SEC_IMPL
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index f1dacecb1619..8373fbacbba3 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -337,6 +337,7 @@ LIBBPF_API int bpf_program__set_perf_event(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_tracing(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_struct_ops(struct bpf_program *prog);
 LIBBPF_API int bpf_program__set_extension(struct bpf_program *prog);
+LIBBPF_API int bpf_program__set_sk_lookup(struct bpf_program *prog);
 
 LIBBPF_API enum bpf_prog_type bpf_program__get_type(struct bpf_program *prog);
 LIBBPF_API void bpf_program__set_type(struct bpf_program *prog,
@@ -364,6 +365,7 @@ LIBBPF_API bool bpf_program__is_perf_event(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_tracing(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_struct_ops(const struct bpf_program *prog);
 LIBBPF_API bool bpf_program__is_extension(const struct bpf_program *prog);
+LIBBPF_API bool bpf_program__is_sk_lookup(const struct bpf_program *prog);
 
 /*
  * No need for __attribute__((packed)), all members of 'bpf_map_def'
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index e03bd4db827e..113ac0a669c2 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -253,6 +253,8 @@ LIBBPF_0.0.8 {
 		bpf_program__set_attach_target;
 		bpf_program__set_lsm;
 		bpf_set_link_xdp_fd_opts;
+		bpf_program__is_sk_lookup;
+		bpf_program__set_sk_lookup;
 } LIBBPF_0.0.7;
 
 LIBBPF_0.0.9 {
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index 2c92059c0c90..5c6d3e49f254 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -109,6 +109,7 @@ probe_load(enum bpf_prog_type prog_type, const struct bpf_insn *insns,
 	case BPF_PROG_TYPE_STRUCT_OPS:
 	case BPF_PROG_TYPE_EXT:
 	case BPF_PROG_TYPE_LSM:
+	case BPF_PROG_TYPE_SK_LOOKUP:
 	default:
 		break;
 	}
-- 
2.25.3


  parent reply	other threads:[~2020-05-06 12:55 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-06 12:54 [PATCH bpf-next 00/17] Run a BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 01/17] flow_dissector: Extract attach/detach/query helpers Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 02/17] bpf: Introduce SK_LOOKUP program type with a dedicated attach point Jakub Sitnicki
2020-05-06 13:16   ` Lorenz Bauer
2020-05-06 13:53     ` Jakub Sitnicki
2020-05-07 20:55       ` Martin KaFai Lau
2020-05-08  8:54         ` Jakub Sitnicki
2020-05-08  7:06   ` Martin KaFai Lau
2020-05-08 10:45     ` Jakub Sitnicki
2020-05-08 18:39       ` Martin KaFai Lau
2020-05-11  9:08         ` Jakub Sitnicki
2020-05-11 18:59           ` Martin KaFai Lau
2020-05-11 19:26             ` Jakub Sitnicki
2020-05-11 20:54               ` Martin KaFai Lau
2020-05-12 14:16                 ` Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 03/17] inet: Store layer 4 protocol in inet_hashinfo Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 04/17] inet: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 05/17] inet: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 06/17] inet6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 07/17] inet6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 08/17] udp: Store layer 4 protocol in udp_table Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 09/17] udp: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 10/17] udp: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 11/17] udp6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 12/17] udp6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 13/17] bpf: Sync linux/bpf.h to tools/ Jakub Sitnicki
2020-05-06 12:55 ` Jakub Sitnicki [this message]
2020-05-08 17:41   ` [PATCH bpf-next 14/17] libbpf: Add support for SK_LOOKUP program type Andrii Nakryiko
2020-05-08 17:52     ` Yonghong Song
2020-05-08 17:59       ` Andrii Nakryiko
2020-05-11  8:12     ` Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 15/17] selftests/bpf: Add verifier tests for bpf_sk_lookup context access Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 16/17] selftests/bpf: Rename test_sk_lookup_kern.c to test_ref_track_kern.c Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 17/17] selftests/bpf: Tests for BPF_SK_LOOKUP attach point Jakub Sitnicki

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