[PATCH net-next 0/5] selftests: drv-net: support testing with a remote system

[Jakub Kicinski <kuba@kernel.org>]

Hi!

Implement support for tests which require access to a remote system /
endpoint which can generate traffic.
This series concludes the "groundwork" for upstream driver tests.

I wanted to support the three models which came up in discussions:
 - SW testing with netdevsim
 - "local" testing with two ports on the same system in a loopback
 - "remote" testing via SSH
so there is a tiny bit of an abstraction which wraps up how "remote"
commands are executed. Otherwise hopefully there's nothing surprising.

I'm only adding a ping test. I had a bigger one written but I was
worried we'll get into discussing the details of the test itself
and how I chose to hack up netdevsim, instead of the test infra...
So that test will be a follow up :)

---

TBH, this series is on top of the one I posted in the morning:
https://lore.kernel.org/all/20240412141436.828666-1-kuba@kernel.org/
but it applies cleanly, and all it needs is the ifindex definition
in netdevsim. Testing with real HW works fine even without the other
series.

Jakub Kicinski (5):
  selftests: drv-net: define endpoint structures
  selftests: drv-net: add stdout to the command failed exception
  selftests: drv-net: factor out parsing of the env
  selftests: drv-net: construct environment for running tests which
    require an endpoint
  selftests: drv-net: add a trivial ping test

 tools/testing/selftests/drivers/net/Makefile  |   4 +-
 .../testing/selftests/drivers/net/README.rst  |  31 ++++
 .../selftests/drivers/net/lib/py/__init__.py  |   1 +
 .../selftests/drivers/net/lib/py/endpoint.py  |  13 ++
 .../selftests/drivers/net/lib/py/env.py       | 136 +++++++++++++++---
 .../selftests/drivers/net/lib/py/ep_netns.py  |  15 ++
 .../selftests/drivers/net/lib/py/ep_ssh.py    |  34 +++++
 tools/testing/selftests/drivers/net/ping.py   |  32 +++++
 .../testing/selftests/net/lib/py/__init__.py  |   1 +
 tools/testing/selftests/net/lib/py/netns.py   |  31 ++++
 tools/testing/selftests/net/lib/py/utils.py   |  22 +--
 11 files changed, 291 insertions(+), 29 deletions(-)
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/endpoint.py
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/ep_netns.py
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/ep_ssh.py
 create mode 100755 tools/testing/selftests/drivers/net/ping.py
 create mode 100644 tools/testing/selftests/net/lib/py/netns.py

-- 
2.44.0