selftests: bpf: Fix bind on used port
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2043528 Tested: selftest passes while port 111 is already in use Upstream Status: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
commit 8c0be0631d81e48f77d0ebf0534c86e32bef5f89 Author: Felix Maurer fmaurer@redhat.com Date: Tue Jan 18 16:11:56 2022 +0100
selftests: bpf: Fix bind on used port
The bind_perm BPF selftest failed when port 111/tcp was already in use
during the test. To fix this, the test now runs in its own network name
space.
To use unshare, it is necessary to reorder the includes. The style of
the includes is adapted to be consistent with the other prog_tests.
v2: Replace deprecated CHECK macro with ASSERT_OK
Fixes: 8259fdeb30326 ("selftests/bpf: Verify that rebinding to port < 1024 from BPF works")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/551ee65533bb987a43f93d88eaf2368b416ccd32.1642518457.git.fmaurer@redhat.com
Signed-off-by: Felix Maurer fmaurer@redhat.com
Edited by Felix Maurer