linux-kernel - [PATCH bpf-next 4/6] bpf: selftests: Support not connecting client socket

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Message-Id: <3623f9fbdfe7e1be46ca6745312eb020329d23c9.1671049840.git.dxu@dxuuu.xyz>
Date:   Wed, 14 Dec 2022 16:25:31 -0700
From:   Daniel Xu <dxu@...uu.xyz>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>
Cc:     ppenkov@...atrix.com, dbird@...atrix.com, bpf@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next 4/6] bpf: selftests: Support not connecting client socket

For connectionless protocols or raw sockets we do not want to actually
connect() to the server.

Signed-off-by: Daniel Xu <dxu@...uu.xyz>
---
 tools/testing/selftests/bpf/network_helpers.c | 5 +++--
 tools/testing/selftests/bpf/network_helpers.h | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 01de33191226..24f5efebc7dd 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -301,8 +301,9 @@ int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts)
 		       strlen(opts->cc) + 1))
 		goto error_close;
 
-	if (connect_fd_to_addr(fd, &addr, addrlen, opts->must_fail))
-		goto error_close;
+	if (!opts->noconnect)
+		if (connect_fd_to_addr(fd, &addr, addrlen, opts->must_fail))
+			goto error_close;
 
 	return fd;
 
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
index f882c691b790..8be04cd76d8b 100644
--- a/tools/testing/selftests/bpf/network_helpers.h
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -21,6 +21,7 @@ struct network_helper_opts {
 	const char *cc;
 	int timeout_ms;
 	bool must_fail;
+	bool noconnect;
 };
 
 /* ipv4 test vector */
-- 
2.39.0