Re: [Xen-devel] [PATCH v2 5/5] libxl: add "downscript=no" to Qemu call

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2012-04-17 at 16:51 +0100, Roger Pau Monne wrote:
> Currently we only pass script=no to Qemu, to avoid calling any scripts when
> attaching a tap interface, but we should also pass downscript=no to avoid Qemu
> trying to execute a script when disconnecting the interface. This prevents the
> following harmless error message:
> 
> /etc/qemu-ifdown: could not launch network script
> 
> Changes since v1:
> 
>  * Indentation fixes.
> 
> Signed-off-by: Roger Pau Monne <roger.pau@xxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

> ---
>  tools/libxl/libxl_dm.c |   27 ++++++++++++++++++---------
>  1 files changed, 18 insertions(+), 9 deletions(-)
> 
> diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
> index 04f76c2..d9c1786 100644
> --- a/tools/libxl/libxl_dm.c
> +++ b/tools/libxl/libxl_dm.c
> @@ -216,11 +216,18 @@ static char ** 
> libxl__build_device_model_args_old(libxl__gc *gc,
>                  else
>                      ifname = libxl__sprintf(gc, "xentap-%s", vifs[i].ifname);
>                  flexarray_vappend(dm_args,
> -                                "-net", libxl__sprintf(gc, 
> "nic,vlan=%d,macaddr=%s,model=%s",
> -                                                       vifs[i].devid, smac, 
> vifs[i].model),
> -                                "-net", libxl__sprintf(gc, 
> "tap,vlan=%d,ifname=%s,bridge=%s,script=%s",
> -                                                       vifs[i].devid, 
> ifname, vifs[i].bridge, libxl_tapif_script(gc)),
> -                                NULL);
> +                                  "-net",
> +                                  libxl__sprintf(gc,
> +                                      "nic,vlan=%d,macaddr=%s,model=%s",
> +                                      vifs[i].devid, smac, vifs[i].model),
> +                                  "-net",
> +                                  libxl__sprintf(gc,
> +                                      "tap,vlan=%d,ifname=%s,bridge=%s,"
> +                                      "script=%s,downscript=%s",
> +                                      vifs[i].devid, ifname, vifs[i].bridge,
> +                                      libxl_tapif_script(gc),
> +                                      libxl_tapif_script(gc)),
> +                                  NULL);
>                  ioemu_vifs++;
>              }
>          }
> @@ -461,10 +468,12 @@ static char ** 
> libxl__build_device_model_args_new(libxl__gc *gc,
>                                                  vifs[i].model, vifs[i].devid,
>                                                  vifs[i].devid, smac));
>                  flexarray_append(dm_args, "-netdev");
> -                flexarray_append(dm_args,
> -                   libxl__sprintf(gc, 
> "type=tap,id=net%d,ifname=%s,script=%s",
> -                                                vifs[i].devid, ifname,
> -                                                libxl_tapif_script(gc)));
> +                flexarray_append(dm_args, libxl__sprintf(gc, 
> +                                          "type=tap,id=net%d,ifname=%s,"
> +                                          "script=%s,downscript=%s",
> +                                          vifs[i].devid, ifname,
> +                                          libxl_tapif_script(gc),
> +                                          libxl_tapif_script(gc)));
>                  ioemu_vifs++;
>              }
>          }



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