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Re: [libvirt] [PATCH V2 2/2] libxl: add default listen address for VNC and spice



On 05/19/2017 11:33 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.
> In the case of spice, a missing listen address resulted in listening
> on all interfaces, i.e. '0.0.0.0'. If not specified, set the listen
> address in virDomainGraphicsDef struct to the libxl default when
> creating the frame buffer device. Additionally, set default spice
> listen address to 127.0.0.1.
> 
> Signed-off-by: Jim Fehlig <jfehlig suse com>

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

> ---
> 
> V2: include setting the listen address for spice as well as VNC
> 
>  src/libxl/libxl_conf.c | 31 +++++++++++++++++++++----------
>  1 file changed, 21 insertions(+), 10 deletions(-)
> 
> diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
> index 56bc09719..b04dffcfa 100644
> --- a/src/libxl/libxl_conf.c
> +++ b/src/libxl/libxl_conf.c
> @@ -1227,13 +1227,18 @@ 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, VIR_LOOPBACK_IPV4_ADDR) < 0)
> +                        return -1;
> +                }
>              }
> +
>              if (VIR_STRDUP(x_vfb->vnc.passwd, l_vfb->data.vnc.auth.passwd) < 0)
>                  return -1;
>              if (VIR_STRDUP(x_vfb->keymap, l_vfb->data.vnc.keymap) < 0)
> @@ -1335,10 +1340,16 @@ libxlMakeBuildInfoVfb(virPortAllocatorPtr graphicsports,
>          }
>          b_info->u.hvm.spice.port = l_vfb->data.spice.port;
>  
> -        if ((glisten = virDomainGraphicsGetListen(l_vfb, 0)) &&
> -            glisten->address &&
> -            VIR_STRDUP(b_info->u.hvm.spice.host, glisten->address) < 0)
> -            return -1;
> +        if ((glisten = virDomainGraphicsGetListen(l_vfb, 0))) {
> +            if (glisten->address) {
> +                if (VIR_STRDUP(b_info->u.hvm.spice.host, glisten->address) < 0)
> +                    return -1;
> +            } else {
> +                if (VIR_STRDUP(b_info->u.hvm.spice.host, VIR_LOOPBACK_IPV4_ADDR) < 0 ||
> +                    VIR_STRDUP(glisten->address, VIR_LOOPBACK_IPV4_ADDR) < 0)
> +                    return -1;
> +            }
> +        }
>  
>          if (VIR_STRDUP(b_info->u.hvm.keymap, l_vfb->data.spice.keymap) < 0)
>              return -1;
> 


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