tree 690151cba371ca5875a5aa4aae0dd6da7d39e862
parent 1c0d8c1aa1de7657eb9270d58a8c44c8ba06fefa
author Christian Brauner <christian@brauner.io> 1553340261 +0100
committer Christian Brauner <christian@brauner.io> 1553912569 +0100
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tests: add pidfd_open() tests

This adds testing for pidfd_open():
- test that no invalid flags can be passed to pidfd_open()
- test that no invalid pid can be passed to pidfd_open()
- test that a pidfd can be retrieved with pidfd_open()
- test whether a pidfd can be converted into an fd to /proc/<pid> to get
  metadata access
- test that a pidfd retrieved based on a pid that has been recycled cannot
  be converted into /proc/<pid> for that recycled pid

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jann Horn <jannh@google.com
Cc: David Howells <dhowells@redhat.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Jonathan Kowalski <bl0pbl33p@gmail.com>
Cc: "Dmitry V. Levin" <ldv@altlinux.org>
Cc: Andy Lutomirsky <luto@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Nagarathnam Muthusamy <nagarathnam.muthusamy@oracle.com>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>