From: "Michael Kerrisk (man-opages)" <mtk.manpages@gmail.com>
To: Tycho Andersen <tycho@tycho.ws>, Kees Cook <keescook@chromium.org>
Cc: mtk.manpages@gmail.com, linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, linux-api@vger.kernel.org,
Andy Lutomirski <luto@amacapital.net>,
Oleg Nesterov <oleg@redhat.com>,
"Eric W . Biederman" <ebiederm@xmission.com>,
"Serge E . Hallyn" <serge@hallyn.com>,
Christian Brauner <christian.brauner@ubuntu.com>,
Tyler Hicks <tyhicks@canonical.com>,
Akihiro Suda <suda.akihiro@lab.ntt.co.jp>,
Jann Horn <jannh@google.com>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v7 0/6] seccomp trap to userspace
Date: Fri, 28 Sep 2018 23:57:40 +0200 [thread overview]
Message-ID: <686fe047-16e6-3dfc-6284-ed574d97ad2f@gmail.com> (raw)
In-Reply-To: <20180927151119.9989-1-tycho@tycho.ws>
Hi Tycho,
On 09/27/2018 05:11 PM, Tycho Andersen wrote:
> Hi all,
>
> Here's v7 of the seccomp trap to userspace set. There are various minor
> changes and bug fixes, but two major changes:
>
> * We now pass fds to the tracee via an ioctl, and do it immediately when
> the ioctl is called. For this we needed some help from the vfs, so
> I've put the one patch in this series and cc'd fsdevel. This does have
> the advantage that the feature is now totally decoupled from the rest
> of the set, which is itself useful (thanks Andy!)
>
> * Instead of putting all of the notification related stuff into the
> struct seccomp_filter, it now lives in its own struct notification,
> which is pointed to by struct seccomp_filter. This will save a lot of
> memory (thanks Tyler!)
Is there a documentation (man page) patch for this API change?
Thanks,
Michael
> v6 discussion: https://lkml.org/lkml/2018/9/6/769
>
> Thoughts welcome,
>
> Tycho
>
> Tycho Andersen (6):
> seccomp: add a return code to trap to userspace
> seccomp: make get_nth_filter available outside of CHECKPOINT_RESTORE
> seccomp: add a way to get a listener fd from ptrace
> files: add a replace_fd_files() function
> seccomp: add a way to pass FDs via a notification fd
> samples: add an example of seccomp user trap
>
> Documentation/ioctl/ioctl-number.txt | 1 +
> .../userspace-api/seccomp_filter.rst | 89 +++
> fs/file.c | 22 +-
> include/linux/file.h | 8 +
> include/linux/seccomp.h | 14 +-
> include/uapi/linux/ptrace.h | 2 +
> include/uapi/linux/seccomp.h | 42 +-
> kernel/ptrace.c | 4 +
> kernel/seccomp.c | 527 ++++++++++++++-
> samples/seccomp/.gitignore | 1 +
> samples/seccomp/Makefile | 7 +-
> samples/seccomp/user-trap.c | 312 +++++++++
> tools/testing/selftests/seccomp/seccomp_bpf.c | 607 +++++++++++++++++-
> 13 files changed, 1617 insertions(+), 19 deletions(-)
> create mode 100644 samples/seccomp/user-trap.c
>
next prev parent reply other threads:[~2018-09-29 4:23 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-27 15:11 [PATCH v7 0/6] seccomp trap to userspace Tycho Andersen
2018-09-27 15:11 ` [PATCH v7 1/6] seccomp: add a return code to " Tycho Andersen
2018-09-27 21:31 ` Kees Cook
2018-09-27 22:48 ` Tycho Andersen
2018-09-27 23:10 ` Kees Cook
2018-09-28 14:39 ` Tycho Andersen
2018-10-08 14:58 ` Christian Brauner
2018-10-09 14:28 ` Tycho Andersen
2018-10-09 16:24 ` Christian Brauner
2018-10-09 16:29 ` Tycho Andersen
2018-10-17 20:29 ` Tycho Andersen
2018-10-17 22:21 ` Kees Cook
2018-10-17 22:33 ` Tycho Andersen
2018-10-21 16:04 ` Tycho Andersen
2018-10-22 9:42 ` Christian Brauner
2018-09-27 21:51 ` Jann Horn
2018-09-27 22:45 ` Kees Cook
2018-09-27 23:08 ` Tycho Andersen
2018-09-27 23:04 ` Tycho Andersen
2018-09-27 23:37 ` Jann Horn
2018-09-29 0:28 ` Aleksa Sarai
2018-09-27 15:11 ` [PATCH v7 2/6] seccomp: make get_nth_filter available outside of CHECKPOINT_RESTORE Tycho Andersen
2018-09-27 16:51 ` Jann Horn
2018-09-27 21:42 ` Kees Cook
2018-10-08 13:55 ` Christian Brauner
2018-09-27 15:11 ` [PATCH v7 3/6] seccomp: add a way to get a listener fd from ptrace Tycho Andersen
2018-09-27 16:20 ` Jann Horn
2018-09-27 16:34 ` Tycho Andersen
2018-09-27 17:35 ` Jann Horn
2018-09-27 18:09 ` Tycho Andersen
2018-09-27 21:53 ` Kees Cook
2018-10-08 15:16 ` Christian Brauner
2018-10-08 15:33 ` Jann Horn
2018-10-08 16:21 ` Christian Brauner
2018-10-08 16:42 ` Jann Horn
2018-10-08 18:18 ` Christian Brauner
2018-10-09 12:39 ` Jann Horn
2018-10-09 13:28 ` Christian Brauner
2018-10-09 13:36 ` Jann Horn
2018-10-09 13:49 ` Christian Brauner
2018-10-09 13:50 ` Jann Horn
2018-10-09 14:09 ` Christian Brauner
2018-10-09 15:26 ` Jann Horn
2018-10-09 16:20 ` Christian Brauner
2018-10-09 16:26 ` Jann Horn
2018-10-10 12:54 ` Christian Brauner
2018-10-10 13:09 ` Christian Brauner
2018-10-10 13:10 ` Jann Horn
2018-10-10 13:18 ` Christian Brauner
2018-10-10 15:31 ` Paul Moore
2018-10-10 15:33 ` Jann Horn
2018-10-10 15:39 ` Christian Brauner
2018-10-10 16:54 ` Tycho Andersen
2018-10-10 17:15 ` Christian Brauner
2018-10-10 17:26 ` Tycho Andersen
2018-10-10 18:28 ` Christian Brauner
2018-10-11 7:24 ` Paul Moore
2018-10-11 13:39 ` Jann Horn
2018-10-11 23:10 ` Paul Moore
2018-10-12 1:02 ` Andy Lutomirski
2018-10-12 20:02 ` Tycho Andersen
2018-10-12 20:06 ` Jann Horn
2018-10-12 20:11 ` Christian Brauner
2018-10-08 18:00 ` Tycho Andersen
2018-10-08 18:41 ` Christian Brauner
2018-10-10 17:45 ` Andy Lutomirski
2018-10-10 18:26 ` Christian Brauner
2018-09-27 15:11 ` [PATCH v7 4/6] files: add a replace_fd_files() function Tycho Andersen
2018-09-27 16:49 ` Jann Horn
2018-09-27 18:04 ` Tycho Andersen
2018-09-27 21:59 ` Kees Cook
2018-09-28 2:20 ` Kees Cook
2018-09-28 2:46 ` Jann Horn
2018-09-28 5:23 ` Tycho Andersen
2018-09-27 15:11 ` [PATCH v7 5/6] seccomp: add a way to pass FDs via a notification fd Tycho Andersen
2018-09-27 16:39 ` Jann Horn
2018-09-27 22:13 ` Tycho Andersen
2018-09-27 19:28 ` Jann Horn
2018-09-27 22:14 ` Tycho Andersen
2018-09-27 22:17 ` Jann Horn
2018-09-27 22:49 ` Tycho Andersen
2018-09-27 22:09 ` Kees Cook
2018-09-27 22:15 ` Tycho Andersen
2018-09-27 15:11 ` [PATCH v7 6/6] samples: add an example of seccomp user trap Tycho Andersen
2018-09-27 22:11 ` Kees Cook
2018-09-28 21:57 ` Michael Kerrisk (man-opages) [this message]
2018-09-28 22:03 ` [PATCH v7 0/6] seccomp trap to userspace Tycho Andersen
2018-09-28 22:16 ` Michael Kerrisk (man-pages)
2018-09-28 22:34 ` Kees Cook
2018-09-28 22:46 ` Michael Kerrisk (man-pages)
2018-09-28 22:48 ` Jann Horn
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