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test/vsock: add big message test

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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@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Arseniy Krasnov 2023-01-10 10:17:02 +00:00 committed by Paolo Abeni
parent 5c338112e4
commit 685a21c314
1 changed files with 69 additions and 0 deletions
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69
tools/testing/vsock/vsock_test.c
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@ -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,
},
{},
};