Re: [Autotest] [KVM-AUTOTEST PATCH] KVM test: make use of tcpdump optional

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On Mon, 2010-05-17 at 16:29 +0300, Michael Goldish wrote:
> To disable tcpdump, set 'run_tcpdump = no' in a config file.
> If 'run_tcpdump' isn't set at all, it defaults to 'yes'.
> 
> (Currently TAP mode cannot be used without tcpdump.)

Maybe we can just tie tcpdump execution to tap mode - if running on tap
mode, enable tcpdump, else, disable it. I'd rather prefer this
approach. 

> Signed-off-by: Michael Goldish <mgoldish@xxxxxxxxxx>
> ---
>  client/tests/kvm/kvm_preprocessing.py  |    2 +-
>  client/tests/kvm/tests_base.cfg.sample |    1 +
>  2 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/client/tests/kvm/kvm_preprocessing.py b/client/tests/kvm/kvm_preprocessing.py
> index 50db65c..e11207a 100644
> --- a/client/tests/kvm/kvm_preprocessing.py
> +++ b/client/tests/kvm/kvm_preprocessing.py
> @@ -196,7 +196,7 @@ def preprocess(test, params, env):
>      if "tcpdump" in env and not env["tcpdump"].is_alive():
>          env["tcpdump"].close()
>          del env["tcpdump"]
> -    if "tcpdump" not in env:
> +    if "tcpdump" not in env and params.get("run_tcpdump", "yes") == "yes":
>          command = "/usr/sbin/tcpdump -npvi any 'dst port 68'"
>          logging.debug("Starting tcpdump (%s)...", command)
>          env["tcpdump"] = kvm_subprocess.kvm_tail(
> diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample
> index c9dfd0b..1276267 100644
> --- a/client/tests/kvm/tests_base.cfg.sample
> +++ b/client/tests/kvm/tests_base.cfg.sample
> @@ -46,6 +46,7 @@ nic_mode = user
>  #nic_mode = tap
>  nic_script = scripts/qemu-ifup
>  address_index = 0
> +run_tcpdump = yes
>  
>  # Misc
>  run_kvm_stat = yes


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