Ensure that vnet ioctls result in EBADFD when the underlying device is deleted.
Signed-off-by: Akihiko Odaki akihiko.odaki@daynix.com Tested-by: Lei Yang leiyang@redhat.com --- tools/testing/selftests/net/tun.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+)
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c index fa83918b62d1..ad168c15c02d 100644 --- a/tools/testing/selftests/net/tun.c +++ b/tools/testing/selftests/net/tun.c @@ -159,4 +159,42 @@ 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, getvnethashcap) +{ + struct tun_vnet_hash cap; + int i = ioctl(self->fd, TUNGETVNETHASHCAP, &cap); + + if (i == -1 && errno == EBADFD) + SKIP(return, "TUNGETVNETHASHCAP not supported"); + + EXPECT_EQ(0, i); +} + TEST_HARNESS_MAIN