Ensure that vnet ioctls result in EBADFD when the underlying device is
deleted.
Signed-off-by: Akihiko Odaki <akihiko.odaki@xxxxxxxxxx>
Tested-by: Lei Yang <leiyang@xxxxxxxxxx>
---
tools/testing/selftests/net/tun.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index fa83918b62d1..41747e1728a6 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c
@@ -12,6 +12,7 @@
#include <linux/if_tun.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
+#include <linux/virtio_net.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
@@ -159,4 +160,42 @@ TEST_F(tun, reattach_close_delete) {
EXPECT_EQ(tun_delete(self->ifname), 0);
}
+FIXTURE(tun_deleted)
+{
+ char ifname[IFNAMSIZ];
+ int fd;
+};
+
+FIXTURE_SETUP(tun_deleted)
+{
+ self->ifname[0] = 0;
+ self->fd = tun_alloc(self->ifname);
+ ASSERT_LE(0, self->fd);
+
+ ASSERT_EQ(0, tun_delete(self->ifname))
+ EXPECT_EQ(0, close(self->fd));
+}
+
+FIXTURE_TEARDOWN(tun_deleted)
+{
+ EXPECT_EQ(0, close(self->fd));
+}
+
+TEST_F(tun_deleted, getvnethdrsz)
+{
+ ASSERT_EQ(-1, ioctl(self->fd, TUNGETVNETHDRSZ));
+ EXPECT_EQ(EBADFD, errno);
+}
+
+TEST_F(tun_deleted, getvnethashtypes)
+{
+ uint32_t hash_types;
+ int ret = ioctl(self->fd, TUNGETVNETHASHTYPES, &hash_types);
+
+ if (ret == -1 && errno == EBADFD)
+ SKIP(return, "TUNGETVNETHASHTYPES not supported");
+
+ EXPECT_FALSE(ret);
+}
+
TEST_HARNESS_MAIN
--
2.49.0
