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Message-ID: <e237f5e7-29fa-3cc5-c34c-3f6e35a85398@sberdevices.ru>
Date: Tue, 6 Dec 2022 20:52:35 +0000
From: Arseniy Krasnov <AVKrasnov@...rdevices.ru>
To: Stefano Garzarella <sgarzare@...hat.com>,
Jakub Kicinski <kuba@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Paolo Abeni <pabeni@...hat.com>,
"edumazet@...gle.com" <edumazet@...gle.com>
CC: Bobby Eshleman <bobby.eshleman@...edance.com>,
Arseniy Krasnov <AVKrasnov@...rdevices.ru>,
Krasnov Arseniy <oxffffaa@...il.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"virtualization@...ts.linux-foundation.org"
<virtualization@...ts.linux-foundation.org>,
kernel <kernel@...rdevices.ru>
Subject: [RFC PATCH v4 3/4] test/vsock: add big message test
This adds test for sending message, bigger than peer's buffer size.
For SOCK_SEQPACKET socket it must fail, as this type of socket has
message size limit.
Signed-off-by: Arseniy Krasnov <AVKrasnov@...rdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@...hat.com>
---
tools/testing/vsock/vsock_test.c | 69 ++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index 26c38ad9d07b..67e9f9df3a8c 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -569,6 +569,70 @@ static void test_seqpacket_timeout_server(const struct test_opts *opts)
close(fd);
}
+static void test_seqpacket_bigmsg_client(const struct test_opts *opts)
+{
+ unsigned long sock_buf_size;
+ ssize_t send_size;
+ socklen_t len;
+ void *data;
+ int fd;
+
+ len = sizeof(sock_buf_size);
+
+ fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
+ if (fd < 0) {
+ perror("connect");
+ exit(EXIT_FAILURE);
+ }
+
+ if (getsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE,
+ &sock_buf_size, &len)) {
+ perror("getsockopt");
+ exit(EXIT_FAILURE);
+ }
+
+ sock_buf_size++;
+
+ data = malloc(sock_buf_size);
+ if (!data) {
+ perror("malloc");
+ exit(EXIT_FAILURE);
+ }
+
+ send_size = send(fd, data, sock_buf_size, 0);
+ if (send_size != -1) {
+ fprintf(stderr, "expected 'send(2)' failure, got %zi\n",
+ send_size);
+ exit(EXIT_FAILURE);
+ }
+
+ if (errno != EMSGSIZE) {
+ fprintf(stderr, "expected EMSGSIZE in 'errno', got %i\n",
+ errno);
+ exit(EXIT_FAILURE);
+ }
+
+ control_writeln("CLISENT");
+
+ free(data);
+ close(fd);
+}
+
+static void test_seqpacket_bigmsg_server(const struct test_opts *opts)
+{
+ int fd;
+
+ fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
+ if (fd < 0) {
+ perror("accept");
+ exit(EXIT_FAILURE);
+ }
+
+ control_expectln("CLISENT");
+
+ close(fd);
+}
+
#define BUF_PATTERN_1 'a'
#define BUF_PATTERN_2 'b'
@@ -851,6 +915,11 @@ static struct test_case test_cases[] = {
.run_client = test_stream_poll_rcvlowat_client,
.run_server = test_stream_poll_rcvlowat_server,
},
+ {
+ .name = "SOCK_SEQPACKET big message",
+ .run_client = test_seqpacket_bigmsg_client,
+ .run_server = test_seqpacket_bigmsg_server,
+ },
{},
};
--
2.25.1
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