Ensure that vnet ioctls result in EBADFD when the underlying device is deleted.
Signed-off-by: Akihiko Odaki <[email protected]> Tested-by: Lei Yang <[email protected]> --- 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
