Re: [RFC PATCH v2 5/5] vsock_test: update message bounds test for MSG_EOR

From: Stefano Garzarella <sgarzare@redhat.com>
To: Arseny Krasnov <arseny.krasnov@kaspersky.com>
Cc: Andra Paraschiv <andraprs@amazon.com>,
	kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
	netdev@vger.kernel.org, stsp2@yandex.ru,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org, oxffffaa@gmail.com,
	Norbert Slusarek <nslusarek@gmx.net>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	Colin Ian King <colin.king@canonical.com>,
	Jakub Kicinski <kuba@kernel.org>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [RFC PATCH v2 5/5] vsock_test: update message bounds test for MSG_EOR
Date: Wed, 11 Aug 2021 11:12:40 +0200	[thread overview]
Message-ID: <20210811091240.jbum3572eelgbbpi@steredhat> (raw)
In-Reply-To: <20210810114119.1215014-1-arseny.krasnov@kaspersky.com>

On Tue, Aug 10, 2021 at 02:41:16PM +0300, Arseny Krasnov wrote:
>Set 'MSG_EOR' in one of message sent, check that 'MSG_EOR'
>is visible in corresponding message at receiver.
>
>Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
>---
> tools/testing/vsock/vsock_test.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
>diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
>index 67766bfe176f..2a3638c0a008 100644
>--- a/tools/testing/vsock/vsock_test.c
>+++ b/tools/testing/vsock/vsock_test.c
>@@ -282,6 +282,7 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
> }
>
> #define MESSAGES_CNT 7
>+#define MSG_EOR_IDX (MESSAGES_CNT / 2)
> static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
> {
> 	int fd;
>@@ -294,7 +295,7 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
>
> 	/* Send several messages, one with MSG_EOR flag */
> 	for (int i = 0; i < MESSAGES_CNT; i++)
>-		send_byte(fd, 1, 0);
>+		send_byte(fd, 1, (i == MSG_EOR_IDX) ? MSG_EOR : 0);
>
> 	control_writeln("SENDDONE");
> 	close(fd);
>@@ -324,6 +325,11 @@ static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
> 			perror("message bound violated");
> 			exit(EXIT_FAILURE);
> 		}
>+
>+		if ((i == MSG_EOR_IDX) ^ !!(msg.msg_flags & MSG_EOR)) {
>+			perror("MSG_EOR");
>+			exit(EXIT_FAILURE);
>+		}
> 	}
>
> 	close(fd);
>-- 
>2.25.1
>

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

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