linux-kernel - [PATCH v2 4/4] tools: Sync uapi headers with new bpf function calls

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Date:   Mon,  6 May 2019 14:31:16 -0400
From:   "Joel Fernandes (Google)" <joel@...lfernandes.org>
To:     linux-kernel@...r.kernel.org
Cc:     "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Adrian Ratiu <adrian.ratiu@...labora.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        bpf@...r.kernel.org, Brendan Gregg <brendan.d.gregg@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        duyuchao <yuchao.du@...soc.com>, Ingo Molnar <mingo@...hat.com>,
        Karim Yaghmour <karim.yaghmour@...rsys.com>,
        Kees Cook <keescook@...omium.org>, kernel-team@...roid.com,
        Manjo Raja Rao <linux@...ojrajarao.com>,
        Martin KaFai Lau <kafai@...com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Michal Gregorczyk <michalgr@...e.com>,
        Mohammad Husain <russoue@...il.com>, netdev@...r.kernel.org,
        Peter Ziljstra <peterz@...radead.org>,
        Qais Yousef <qais.yousef@....com>,
        Song Liu <songliubraving@...com>,
        Srinivas Ramana <sramana@...eaurora.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tamir Carmeli <carmeli.tamir@...il.com>,
        Yonghong Song <yhs@...com>
Subject: [PATCH v2 4/4] tools: Sync uapi headers with new bpf function calls

The uapi in tools/ needs an update after support for new bpf function
calls were added. This commit does the same.

Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
---
 tools/include/uapi/linux/bpf.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 929c8e537a14..05af4e1151d3 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2431,6 +2431,18 @@ union bpf_attr {
  *	Return
  *		A **struct bpf_sock** pointer on success, or **NULL** in
  *		case of failure.
+ *
+ * int bpf_probe_read_user(void *dst, int size, void *src)
+ *     Description
+ *             Read a userspace pointer safely.
+ *     Return
+ *             0 on success or negative error
+ *
+ * int bpf_probe_read_kernel(void *dst, int size, void *src)
+ *     Description
+ *             Read a kernel pointer safely.
+ *     Return
+ *             0 on success or negative error
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -2531,7 +2543,9 @@ union bpf_attr {
 	FN(sk_fullsock),		\
 	FN(tcp_sock),			\
 	FN(skb_ecn_set_ce),		\
-	FN(get_listener_sock),
+	FN(get_listener_sock),		\
+	FN(probe_read_user),		\
+	FN(probe_read_kernel),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
-- 
2.21.0.1020.gf2820cf01a-goog