linux-kernel - [PATCH liburing v1 08/12] t/connect: Don't use a static port number

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Date:   Fri,  2 Sep 2022 07:59:42 +0700
From:   Ammar Faizi <ammarfaizi2@...weeb.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Ammar Faizi <ammarfaizi2@...weeb.org>,
        Dylan Yudaken <dylany@...com>,
        Facebook Kernel Team <kernel-team@...com>,
        Pavel Begunkov <asml.silence@...il.com>,
        Kanna Scarlet <knscarlet@...weeb.org>,
        Muhammad Rizki <kiizuha@...weeb.org>,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        io-uring Mailing List <io-uring@...r.gnuweeb.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH liburing v1 08/12] t/connect: Don't use a static port number

From: Ammar Faizi <ammarfaizi2@...weeb.org>

Don't use a static port number. It might already be in use, resulting
in a test failure. Use an ephemeral port to make this test reliable.

Cc: Dylan Yudaken <dylany@...com>
Cc: Facebook Kernel Team <kernel-team@...com>
Cc: Pavel Begunkov <asml.silence@...il.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@...weeb.org>
---
 test/accept.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/test/accept.c b/test/accept.c
index b35ded4..1821faa 100644
--- a/test/accept.c
+++ b/test/accept.c
@@ -184,31 +184,28 @@ static int start_accept_listen(struct sockaddr_in *addr, int port_off,
 
 	int32_t val = 1;
 	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val));
 	assert(ret != -1);
 	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 	assert(ret != -1);
 
 	struct sockaddr_in laddr;
 
 	if (!addr)
 		addr = &laddr;
 
 	addr->sin_family = AF_INET;
-	addr->sin_port = htons(0x1235 + port_off);
 	addr->sin_addr.s_addr = inet_addr("127.0.0.1");
-
-	ret = bind(fd, (struct sockaddr*)addr, sizeof(*addr));
-	assert(ret != -1);
+	assert(!t_bind_ephemeral_port(fd, addr));
 	ret = listen(fd, 128);
 	assert(ret != -1);
 
 	return fd;
 }
 
 static int set_client_fd(struct sockaddr_in *addr)
 {
 	int32_t val;
 	int fd, ret;
 
 	fd = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, IPPROTO_TCP);
 
-- 
Ammar Faizi