Re: [Qemu-devel] [PATCH V3 0/3] qemu-iotests: add test for fd passing via SCM rights

[Stefan Hajnoczi]

On Mon, Sep 02, 2013 at 05:18:10PM +0800, Wenchao Xia wrote:
> This series add test case for fd passing with unix socket at runtime. Since
> getfd and closefd interface will interact with monitor's data, so it will
> help to do regression test for monitor patches. Since python2 do not support
> sendmsg(), so a C helper program is added to do the job.
> 
> v2:
>   1: add missing $ in the makefile rule.
> 
> v3:
>   Address Eric's comments:
>   1: typo fix, remove "." in the end of error message, strick
> check argc as "!=", use EXIT_SUCCESS and EXIT_FAILURE as exit
> values, strict error check for strtol() call.
>   Address Luiz's comments:
>   1: change the helper program parameter as "bin < socket-fd > < file-path >",
> the program open the file itself now, data parameter is removed and blank
> is always used as iov data, better usage tip message, folder the string 
> parsing
> code into a function.
>   2: related change for helper program parameter change.
>   3: related change for helper program parameter change.
>   Other:
>   1: remove "LINK" rule in makefile, remove fd checking code inside send_fd()
> since it is already checked before calling, add '' around %s for path and
> number string in error message.
>   2: renamed fd_bin to bin in send_fd_scm() to tip better, add '' around %s
> for path in error message.
> 
> Wenchao Xia (3):
>   1 qemu-iotests: add unix socket help program
>   2 qemu-iotests: add infrastructure of fd passing via SCM
>   3 qemu-iotests: add tests for runtime fd passing via SCM rights
> 
>  QMP/qmp.py                             |    6 ++
>  configure                              |    2 +-
>  tests/Makefile                         |    3 +-
>  tests/qemu-iotests/045                 |   36 ++++++++-
>  tests/qemu-iotests/045.out             |    4 +-
>  tests/qemu-iotests/check               |    1 +
>  tests/qemu-iotests/iotests.py          |   23 ++++++
>  tests/qemu-iotests/socket_scm_helper.c |  135 
> ++++++++++++++++++++++++++++++++
>  8 files changed, 205 insertions(+), 5 deletions(-)
>  create mode 100644 tests/qemu-iotests/socket_scm_helper.c

Looks useful.  I have left comments about whitespace cleanups and
requested a few additional tests for addfd/getfd/closefd errors.