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[bpf-next,08/15] selftests/bpf: Add nolisten for network_helper_opts

Message ID bf1035738532f5c21ae42f05d14fc00e334079ef.1721771340.git.tanggeliang@kylinos.cn (mailing list archive)
State New, archived
Delegated to: BPF
Headers show
Series use network helpers, part 11 | expand

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Commit Message

Geliang Tang July 23, 2024, 10:22 p.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

This patch adds a struct member "nolisten" for network_helper_opts,
which is used to control whether to invoke listen() or not in
start_server_addr().

Also print out a warning if backlog is set for a type not support
listen for connections.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/network_helpers.c | 5 ++++-
 tools/testing/selftests/bpf/network_helpers.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 8f39adbc2c16..f140a76d3d7f 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -109,11 +109,14 @@  int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t a
 		goto error_close;
 	}
 
-	if (type == SOCK_STREAM) {
+	if (!opts->nolisten && type == SOCK_STREAM) {
 		if (listen(fd, opts->backlog ? MAX(opts->backlog, 0) : 1) < 0) {
 			log_err("Failed to listed on socket");
 			goto error_close;
 		}
+	} else if (opts->backlog) {
+		log_err("Useless network helper opts: backlog %d",
+			opts->backlog);
 	}
 
 	return fd;
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
index ebed1fb1bd49..16f266c53b61 100644
--- a/tools/testing/selftests/bpf/network_helpers.h
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -34,6 +34,7 @@  struct network_helper_opts {
 	 *	changing the "tcp_syncookies" sysctl from 1 to 2.
 	 */
 	int backlog;
+	bool nolisten;
 	int (*post_socket_cb)(int fd, void *opts);
 	void *cb_opts;
 };