* Re: [PATCH net-next v3 4/4] vsock/test: MSG_PEEK test for SOCK_SEQPACKET
[not found] ` <20230725172912.1659970-5-AVKrasnov@sberdevices.ru>
@ 2023-07-26 8:04 ` Stefano Garzarella
0 siblings, 0 replies; 2+ messages in thread
From: Stefano Garzarella @ 2023-07-26 8:04 UTC (permalink / raw)
To: Arseniy Krasnov
Cc: Bobby Eshleman, kvm, Michael S. Tsirkin, netdev, linux-kernel,
virtualization, oxffffaa, Eric Dumazet, Stefan Hajnoczi, kernel,
Jakub Kicinski, Paolo Abeni, David S. Miller
On Tue, Jul 25, 2023 at 08:29:12PM +0300, Arseniy Krasnov wrote:
>This adds MSG_PEEK test for SOCK_SEQPACKET. It works in the same way as
>SOCK_STREAM test, except it also tests MSG_TRUNC flag.
>
>Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
>---
> tools/testing/vsock/vsock_test.c | 58 +++++++++++++++++++++++++++++---
> 1 file changed, 54 insertions(+), 4 deletions(-)
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Thanks,
Stefano
>
>diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
>index 444a3ff0681f..90718c2fd4ea 100644
>--- a/tools/testing/vsock/vsock_test.c
>+++ b/tools/testing/vsock/vsock_test.c
>@@ -257,14 +257,19 @@ static void test_stream_multiconn_server(const struct test_opts *opts)
>
> #define MSG_PEEK_BUF_LEN 64
>
>-static void test_stream_msg_peek_client(const struct test_opts *opts)
>+static void test_msg_peek_client(const struct test_opts *opts,
>+ bool seqpacket)
> {
> unsigned char buf[MSG_PEEK_BUF_LEN];
> ssize_t send_size;
> int fd;
> int i;
>
>- fd = vsock_stream_connect(opts->peer_cid, 1234);
>+ if (seqpacket)
>+ fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
>+ else
>+ fd = vsock_stream_connect(opts->peer_cid, 1234);
>+
> if (fd < 0) {
> perror("connect");
> exit(EXIT_FAILURE);
>@@ -290,7 +295,8 @@ static void test_stream_msg_peek_client(const struct test_opts *opts)
> close(fd);
> }
>
>-static void test_stream_msg_peek_server(const struct test_opts *opts)
>+static void test_msg_peek_server(const struct test_opts *opts,
>+ bool seqpacket)
> {
> unsigned char buf_half[MSG_PEEK_BUF_LEN / 2];
> unsigned char buf_normal[MSG_PEEK_BUF_LEN];
>@@ -298,7 +304,11 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
> ssize_t res;
> int fd;
>
>- fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
>+ if (seqpacket)
>+ fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
>+ else
>+ fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
>+
> if (fd < 0) {
> perror("accept");
> exit(EXIT_FAILURE);
>@@ -340,6 +350,21 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
> exit(EXIT_FAILURE);
> }
>
>+ if (seqpacket) {
>+ /* This type of socket supports MSG_TRUNC flag,
>+ * so check it with MSG_PEEK. We must get length
>+ * of the message.
>+ */
>+ res = recv(fd, buf_half, sizeof(buf_half), MSG_PEEK |
>+ MSG_TRUNC);
>+ if (res != sizeof(buf_peek)) {
>+ fprintf(stderr,
>+ "recv(2) + MSG_PEEK | MSG_TRUNC, exp %zu, got %zi\n",
>+ sizeof(buf_half), res);
>+ exit(EXIT_FAILURE);
>+ }
>+ }
>+
> res = recv(fd, buf_normal, sizeof(buf_normal), 0);
> if (res != sizeof(buf_normal)) {
> fprintf(stderr, "recv(2), expected %zu, got %zi\n",
>@@ -356,6 +381,16 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
> close(fd);
> }
>
>+static void test_stream_msg_peek_client(const struct test_opts *opts)
>+{
>+ return test_msg_peek_client(opts, false);
>+}
>+
>+static void test_stream_msg_peek_server(const struct test_opts *opts)
>+{
>+ return test_msg_peek_server(opts, false);
>+}
>+
> #define SOCK_BUF_SIZE (2 * 1024 * 1024)
> #define MAX_MSG_SIZE (32 * 1024)
>
>@@ -1125,6 +1160,16 @@ static void test_stream_virtio_skb_merge_server(const struct test_opts *opts)
> close(fd);
> }
>
>+static void test_seqpacket_msg_peek_client(const struct test_opts *opts)
>+{
>+ return test_msg_peek_client(opts, true);
>+}
>+
>+static void test_seqpacket_msg_peek_server(const struct test_opts *opts)
>+{
>+ return test_msg_peek_server(opts, true);
>+}
>+
> static struct test_case test_cases[] = {
> {
> .name = "SOCK_STREAM connection reset",
>@@ -1200,6 +1245,11 @@ static struct test_case test_cases[] = {
> .run_client = test_stream_virtio_skb_merge_client,
> .run_server = test_stream_virtio_skb_merge_server,
> },
>+ {
>+ .name = "SOCK_SEQPACKET MSG_PEEK",
>+ .run_client = test_seqpacket_msg_peek_client,
>+ .run_server = test_seqpacket_msg_peek_server,
>+ },
> {},
> };
>
>--
>2.25.1
>
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