netdev - [PATCH bpf-next 3/6] bpf: keep bpf.h in sync with tools/

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Message-Id: <20190724165803.87470-4-brianvv@google.com>
Date:   Wed, 24 Jul 2019 09:58:00 -0700
From:   Brian Vazquez <brianvv@...gle.com>
To:     Brian Vazquez <brianvv.kernel@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Stanislav Fomichev <sdf@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Petar Penkov <ppenkov@...gle.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, Brian Vazquez <brianvv@...gle.com>
Subject: [PATCH bpf-next 3/6] bpf: keep bpf.h in sync with tools/

Adds bpf_attr.dump structure to libbpf.

Suggested-by: Stanislav Fomichev <sdf@...gle.com>
Signed-off-by: Brian Vazquez <brianvv@...gle.com>
---
 tools/include/uapi/linux/bpf.h | 9 +++++++++
 tools/lib/bpf/libbpf.map       | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 4e455018da65f..e127f16e4e932 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -106,6 +106,7 @@ enum bpf_cmd {
 	BPF_TASK_FD_QUERY,
 	BPF_MAP_LOOKUP_AND_DELETE_ELEM,
 	BPF_MAP_FREEZE,
+	BPF_MAP_DUMP,
 };
 
 enum bpf_map_type {
@@ -388,6 +389,14 @@ union bpf_attr {
 		__u64		flags;
 	};
 
+	struct { /* struct used by BPF_MAP_DUMP command */
+		__aligned_u64	prev_key;
+		__aligned_u64	buf;
+		__aligned_u64	buf_len; /* input/output: len of buf */
+		__u64		flags;
+		__u32		map_fd;
+	} dump;
+
 	struct { /* anonymous struct used by BPF_PROG_LOAD command */
 		__u32		prog_type;	/* one of enum bpf_prog_type */
 		__u32		insn_cnt;
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index f9d316e873d8d..cac3723d5c45c 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -183,4 +183,6 @@ LIBBPF_0.0.4 {
 		perf_buffer__new;
 		perf_buffer__new_raw;
 		perf_buffer__poll;
+		bpf_map_dump;
+		bpf_map_dump_flags;
 } LIBBPF_0.0.3;
-- 
2.22.0.657.g960e92d24f-goog