vsock_test: add SOCK_STREAM MSG_PEEK test

Test if the MSG_PEEK flags of recv(2) works as expected.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index a63e05d6a0f9dfdcfa636f1ca0eebdade03b31df..1d8b93f1af3154bb7f7be991161481146f854a07 100644 (file)
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -178,6 +178,35 @@ static void test_stream_multiconn_server(const struct test_opts *opts)
                close(fds[i]);
 }
 
+static void test_stream_msg_peek_client(const struct test_opts *opts)
+{
+       int fd;
+
+       fd = vsock_stream_connect(opts->peer_cid, 1234);
+       if (fd < 0) {
+               perror("connect");
+               exit(EXIT_FAILURE);
+       }
+
+       send_byte(fd, 1, 0);
+       close(fd);
+}
+
+static void test_stream_msg_peek_server(const struct test_opts *opts)
+{
+       int fd;
+
+       fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
+       if (fd < 0) {
+               perror("accept");
+               exit(EXIT_FAILURE);
+       }
+
+       recv_byte(fd, 1, MSG_PEEK);
+       recv_byte(fd, 1, 0);
+       close(fd);
+}
+
 static struct test_case test_cases[] = {
        {
                .name = "SOCK_STREAM connection reset",
@@ -198,6 +227,11 @@ static struct test_case test_cases[] = {
                .run_client = test_stream_multiconn_client,
                .run_server = test_stream_multiconn_server,
        },
+       {
+               .name = "SOCK_STREAM MSG_PEEK",
+               .run_client = test_stream_msg_peek_client,
+               .run_server = test_stream_msg_peek_server,
+       },
        {},
 };