[PATCH net-next v7 4/6] selftest: tun: Test vnet ioctls without device
From: Akihiko Odaki <hidden>
Date: 2025-02-28 07:59:28
Also in:
kvm, linux-doc, linux-kselftest, lkml, virtualization
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Ensure that vnet ioctls result in EBADFD when the underlying device is deleted. Signed-off-by: Akihiko Odaki <redacted> --- tools/testing/selftests/net/tun.c | 74 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+)
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
index fa83918b62d1be1c93adcd6c2f07654893cf97f8..463dd98f2b80b1bdcb398cee43c834e7dc5cf784 100644
--- a/tools/testing/selftests/net/tun.c
+++ b/tools/testing/selftests/net/tun.c@@ -159,4 +159,78 @@ 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, setvnethdrsz) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNSETVNETHDRSZ)); + EXPECT_EQ(EBADFD, errno); +} + +TEST_F(tun_deleted, getvnetle) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNGETVNETLE)); + EXPECT_EQ(EBADFD, errno); +} + +TEST_F(tun_deleted, setvnetle) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNSETVNETLE)); + EXPECT_EQ(EBADFD, errno); +} + +TEST_F(tun_deleted, getvnetbe) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNGETVNETBE)); + EXPECT_EQ(EBADFD, errno); +} + +TEST_F(tun_deleted, setvnetbe) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNSETVNETBE)); + 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_F(tun_deleted, setvnethash) +{ + ASSERT_EQ(-1, ioctl(self->fd, TUNSETVNETHASH)); + EXPECT_EQ(EBADFD, errno); +} + TEST_HARNESS_MAIN
--
2.48.1