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Date:   Fri, 21 Jun 2019 16:16:47 -0700
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Subject: [RFC PATCH 3/6] bpf: keep bpf.h in sync with tools/
From:   Brian Vazquez <brianvv@google.com>
To:     Brian Vazquez <brianvv.kernel@gmail.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        "David S . Miller" <davem@davemloft.net>
Cc:     Stanislav Fomichev <sdf@google.com>,
        Willem de Bruijn <willemb@google.com>,
        Petar Penkov <ppenkov@google.com>,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        bpf@vger.kernel.org, Brian Vazquez <brianvv@google.com>
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Adds bpf_attr.dump structure to libbpf.

Suggested-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Brian Vazquez <brianvv@google.com>
---
 tools/include/uapi/linux/bpf.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index b077507efa3f3..1d753958874df 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 {
@@ -385,6 +386,14 @@ union bpf_attr {
 		__u64		flags;
 	};
 
+	struct { /* struct used by BPF_MAP_DUMP command */
+		__u32		map_fd;
+		__aligned_u64	prev_key;
+		__aligned_u64	buf;
+		__aligned_u64	buf_len; /* input/output: len of buf */
+		__u64		flags;
+	} dump;
+
 	struct { /* anonymous struct used by BPF_PROG_LOAD command */
 		__u32		prog_type;	/* one of enum bpf_prog_type */
 		__u32		insn_cnt;
-- 
2.22.0.410.gd8fdbe21b5-goog