[libvirt] [PATCH] libxl: add default VNC listen address

[Joao Martins]

On 05/17/2017 10:38 PM, Jim Fehlig wrote:
> If a VNC listen address is not specified in domXML, libxl will
> default to 127.0.0.1, but this is never reflected in the domXML.
> If not specified, set the listen address in virDomainGraphicsDef
> struct to the libxl default when creating the frame buffer device.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1334562
> Signed-off-by: Jim Fehlig <jfehlig at suse.com>
>
Just a nit (more of a suggestion in the future), "127.0.0.1" seems to be
hardcoded all over libvirt AFAIK (e.g. qemu driver, socketaddr.c) , maybe
defining a macro in a well defined place would be better.

Other than that,

Reviewed-by: Joao Martins <joao.m.martins at oracle.com>

This fix should silence that message virt-viewer warnings. nice :)

Joao

> ---
>  src/libxl/libxl_conf.c | 16 ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
> 
> diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
> index 56bc09719..0c5d7a700 100644
> --- a/src/libxl/libxl_conf.c
> +++ b/src/libxl/libxl_conf.c
> @@ -1227,12 +1227,16 @@ libxlMakeVfb(virPortAllocatorPtr graphicsports,
>              }
>              x_vfb->vnc.display = l_vfb->data.vnc.port - LIBXL_VNC_PORT_MIN;
>  
> -            if ((glisten = virDomainGraphicsGetListen(l_vfb, 0)) &&
> -                glisten->address) {
> -                /* libxl_device_vfb_init() does VIR_STRDUP("127.0.0.1") */
> -                VIR_FREE(x_vfb->vnc.listen);
> -                if (VIR_STRDUP(x_vfb->vnc.listen, glisten->address) < 0)
> -                    return -1;
> +            if ((glisten = virDomainGraphicsGetListen(l_vfb, 0))) {
> +                if (glisten->address) {
> +                    /* libxl_device_vfb_init() does VIR_STRDUP("127.0.0.1") */
> +                    VIR_FREE(x_vfb->vnc.listen);
> +                    if (VIR_STRDUP(x_vfb->vnc.listen, glisten->address) < 0)
> +                        return -1;
> +                } else {
> +                    if (VIR_STRDUP(glisten->address, "127.0.0.1") < 0)
> +                        return -1;
> +                }
>              }
>              if (VIR_STRDUP(x_vfb->vnc.passwd, l_vfb->data.vnc.auth.passwd) < 0)
>                  return -1;
>