[PATCH RFC 0/2] Allow seccomp filter to work without -f

Paul Chaignon paul.chaignon at gmail.com
Mon Nov 11 15:19:17 UTC 2019

This patchset adds support in strace and the kernel for seccomp filter to
work without the -f option.

The second patch is for the kernel and based on Linus' tree.  It
implements a new seccomp flag, SECCOMP_FILTER_FLAG_NO_INHERITANCE.  When
given, children tasks don't inherit the filter.  The first patch adds
support for this new flag in strace.

I am thinking of sending the kernel patch to the appropriate mailing list
only once --seccomp-bpf is out of experimental mode.  I'm guessing we'll
have a better case that way.

Paul Chaignon (2):
  filter_seccomp: use seccomp's NO_INHERIT flag when available

 filter_seccomp.c                     | 38 +++++++++++++++++++++++++---
 filter_seccomp.h                     |  1 +
 strace.1.in                          |  4 ++-
 strace.c                             |  6 ++---
 tests/Makefile.am                    |  1 +
 tests/filter_seccomp-no-inherit.test | 26 +++++++++++++++++++
 tests/options-syntax.test            |  2 --
 7 files changed, 68 insertions(+), 10 deletions(-)
 create mode 100755 tests/filter_seccomp-no-inherit.test


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