[PATCH v3 0/6] pidfd_getfd: fix decoder

[Dmitry V. Levin]

On Sun, May 24, 2020 at 12:41:32PM +0200, Ákos Uzonyi wrote:
> From: Uzonyi Ákos <uzonyi.akos at gmail.com>
> 
> These patches fix pidfd_getfd decoder, which incorrectly assumed its
> first argument being a pid, but actually that is a pidfd.
> 
> First, some functions are added to util.c, which makes the decoding possible.
> 
> Changes in v3:
>   Restore optimization of printpidfd
>   Use dup (not dup2) in test
>   Use pipe (not sleep) for synchronization in test
> Changes in v2:
>   Check pid validity by ">0" instead of ">=0"
>   Use different fd number in test
> 
> Ákos Uzonyi (6):
>   pathtrace.c: add getfdpath_pid
>   util.c: add printfd_pid
>   Rename print_pid_fd -> printfd_pid_tracee_ns
>   util.c: add pidfd_get_pid
>   pidfd_getfd: fix decoder
>   tests/pidfd_getfd.c: test decoding of targetfd
> 
>  defs.h              | 13 ++++++++++-
>  kcmp.c              |  8 +++----
>  pathtrace.c         | 15 ++++++++++---
>  pidfd_getfd.c       | 20 ++++++++++++-----
>  tests/gen_tests.in  |  6 ++---
>  tests/pidfd_getfd.c | 35 ++++++++++++++++++++++++-----
>  util.c              | 54 +++++++++++++++++++++++++++------------------
>  7 files changed, 108 insertions(+), 43 deletions(-)

Merged, thanks!


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