selftests: tls: test splicing cmsgs

Make sure we correctly reject splicing non-data records.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 2108b197d3f640acbe13bde46c5b522a9dc7ee82..3dfa9d7dd4cc909e3f3a097f07b615ef4536075e 100644 (file)
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -639,6 +639,46 @@ TEST_F(tls, splice_to_pipe)
        EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
 }
 
+TEST_F(tls, splice_cmsg_to_pipe)
+{
+       char *test_str = "test_read";
+       char record_type = 100;
+       int send_len = 10;
+       char buf[10];
+       int p[2];
+
+       ASSERT_GE(pipe(p), 0);
+       EXPECT_EQ(tls_send_cmsg(self->fd, 100, test_str, send_len, 0), 10);
+       EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), -1);
+       EXPECT_EQ(errno, EINVAL);
+       EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+       EXPECT_EQ(errno, EIO);
+       EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+                               buf, sizeof(buf), MSG_WAITALL),
+                 send_len);
+       EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, splice_dec_cmsg_to_pipe)
+{
+       char *test_str = "test_read";
+       char record_type = 100;
+       int send_len = 10;
+       char buf[10];
+       int p[2];
+
+       ASSERT_GE(pipe(p), 0);
+       EXPECT_EQ(tls_send_cmsg(self->fd, 100, test_str, send_len, 0), 10);
+       EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+       EXPECT_EQ(errno, EIO);
+       EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), -1);
+       EXPECT_EQ(errno, EINVAL);
+       EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+                               buf, sizeof(buf), MSG_WAITALL),
+                 send_len);
+       EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
 TEST_F(tls, recvmsg_single)
 {
        char const *test_str = "test_recvmsg_single";