[PATCH net-next v10 09/10] selftest: tap: Add tests for virtio-net ioctls

[Akihiko Odaki <akihiko.odaki@daynix.com>]

They only test the ioctls are wired up to the implementation common with
tun as it is already tested for tun.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 tools/testing/selftests/net/tap.c | 97 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 95 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/tap.c b/tools/testing/selftests/net/tap.c
index 247c3b3ac1c9..fbd38b08fdfa 100644
--- a/tools/testing/selftests/net/tap.c
+++ b/tools/testing/selftests/net/tap.c
@@ -363,6 +363,7 @@ size_t build_test_packet_crash_tap_invalid_eth_proto(uint8_t *buf,
 FIXTURE(tap)
 {
 	int fd;
+	bool deleted;
 };
 
 FIXTURE_SETUP(tap)
@@ -387,8 +388,10 @@ FIXTURE_TEARDOWN(tap)
 	if (self->fd != -1)
 		close(self->fd);
 
-	ret = dev_delete(param_dev_tap_name);
-	EXPECT_EQ(ret, 0);
+	if (!self->deleted) {
+		ret = dev_delete(param_dev_tap_name);
+		EXPECT_EQ(ret, 0);
+	}
 
 	ret = dev_delete(param_dev_dummy_name);
 	EXPECT_EQ(ret, 0);
@@ -431,4 +434,94 @@ TEST_F(tap, test_packet_crash_tap_invalid_eth_proto)
 	ASSERT_EQ(errno, EINVAL);
 }
 
+TEST_F(tap, test_vnethdrsz)
+{
+	int sz = sizeof(struct virtio_net_hdr_v1_hash);
+
+	ASSERT_FALSE(dev_delete(param_dev_tap_name));
+	self->deleted = true;
+
+	ASSERT_FALSE(ioctl(self->fd, TUNSETVNETHDRSZ, &sz));
+	sz = 0;
+	ASSERT_FALSE(ioctl(self->fd, TUNGETVNETHDRSZ, &sz));
+	EXPECT_EQ(sizeof(struct virtio_net_hdr_v1_hash), sz);
+}
+
+TEST_F(tap, test_vnetle)
+{
+	int le = 1;
+
+	ASSERT_FALSE(dev_delete(param_dev_tap_name));
+	self->deleted = true;
+
+	ASSERT_FALSE(ioctl(self->fd, TUNSETVNETLE, &le));
+	le = 0;
+	ASSERT_FALSE(ioctl(self->fd, TUNGETVNETLE, &le));
+	EXPECT_EQ(1, le);
+}
+
+TEST_F(tap, test_vnetbe)
+{
+	int be = 1;
+	int ret;
+
+	ASSERT_FALSE(dev_delete(param_dev_tap_name));
+	self->deleted = true;
+
+	ret = ioctl(self->fd, TUNSETVNETBE, &be);
+	if (ret == -1 && errno == EINVAL)
+		SKIP(return, "TUNSETVNETBE not supported");
+
+	ASSERT_FALSE(ret);
+	be = 0;
+	ASSERT_FALSE(ioctl(self->fd, TUNGETVNETBE, &be));
+	EXPECT_EQ(1, be);
+}
+
+TEST_F(tap, test_getvnethashcap)
+{
+	static const struct tun_vnet_hash expected = {
+		.flags = TUN_VNET_HASH_REPORT | TUN_VNET_HASH_RSS,
+		.types = VIRTIO_NET_RSS_HASH_TYPE_IPv4 |
+			 VIRTIO_NET_RSS_HASH_TYPE_TCPv4 |
+			 VIRTIO_NET_RSS_HASH_TYPE_UDPv4 |
+			 VIRTIO_NET_RSS_HASH_TYPE_IPv6 |
+			 VIRTIO_NET_RSS_HASH_TYPE_TCPv6 |
+			 VIRTIO_NET_RSS_HASH_TYPE_UDPv6
+	};
+	struct tun_vnet_hash seen;
+	int ret;
+
+	ASSERT_FALSE(dev_delete(param_dev_tap_name));
+	self->deleted = true;
+
+	ret = ioctl(self->fd, TUNGETVNETHASHCAP, &seen);
+
+	if (ret == -1 && errno == EINVAL)
+		SKIP(return, "TUNGETVNETHASHCAP not supported");
+
+	EXPECT_FALSE(ret);
+	EXPECT_FALSE(memcmp(&expected, &seen, sizeof(expected)));
+}
+
+TEST_F(tap, test_setvnethash_alive)
+{
+	struct tun_vnet_hash hash = { .flags = 0 };
+
+	EXPECT_FALSE(ioctl(self->fd, TUNSETVNETHASH, &hash));
+}
+
+TEST_F(tap, test_setvnethash_deleted)
+{
+	ASSERT_FALSE(dev_delete(param_dev_tap_name));
+	self->deleted = true;
+
+	ASSERT_EQ(-1, ioctl(self->fd, TUNSETVNETHASH));
+
+	if (errno == EINVAL)
+		SKIP(return, "TUNSETVNETHASH not supported");
+
+	EXPECT_EQ(EBADFD, errno);
+}
+
 TEST_HARNESS_MAIN

-- 
2.48.1