Re: [Xen-devel] [PATCH 12/13] set vnc password from xenstore.

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

What is the justification for this change. We already have a means
to set the VNC password from the monitor. If this isn't sufficient
we should introduce an additional method which isn't Xen specific.

I know XenD currently sends the passwords to QEMU via xenstore,
but that's not a good reason to preserve this approach. XenD
does lots of stuff via XenStore which it should be doing via
command line arguments - such as setting up disks instead of using
the -drive param.

IMHO, XenD should just set the VNC password by connecting to the
monitor. That's what its there for after all.

Daniel

On Thu, Aug 21, 2008 at 06:27:33PM +0200, Gerd Hoffmann wrote:
> 
> Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
> ---
>  hw/xen_machine_pv.c |   26 ++++++++++++++++++++++++++
>  1 files changed, 26 insertions(+), 0 deletions(-)
> 
> diff --git a/hw/xen_machine_pv.c b/hw/xen_machine_pv.c
> index 851837c..9f18742 100644
> --- a/hw/xen_machine_pv.c
> +++ b/hw/xen_machine_pv.c
> @@ -24,6 +24,7 @@
>  
>  #include "hw.h"
>  #include "boards.h"
> +#include "console.h"
>  
>  #include "xen_backend.h"
>  
> @@ -110,6 +111,29 @@ static int xen_init_pv(DisplayState *ds)
>      return 0;
>  }
>  
> +static void xen_init_vnc(void)
> +{
> +    char xspath[256], *dom = NULL, *vm = NULL, *pw = NULL;
> +    int len;
> +
> +    dom = xs_get_domain_path(xenstore, xen_domid);
> +    snprintf(xspath, sizeof(xspath), "%s/vm", dom);
> +    vm = xs_read(xenstore, 0, xspath, &len);
> +    if (!vm)
> +        goto out;
> +    snprintf(xspath, sizeof(xspath), "%s/vncpassword", vm);
> +    pw = xs_read(xenstore, 0, xspath, &len);
> +    if (!pw || !strlen(pw))
> +        goto out;
> +    vnc_display_password(NULL, pw);
> +    fprintf(stderr, "vnc password set from xenstore\n");
> +
> +out:
> +    free(dom);
> +    free(vm);
> +    free(pw);
> +}
> +
>  /* -------------------------------------------------------------------- */
>  /* paravirtualized xen machine                                          */
>  
> @@ -136,6 +160,8 @@ static void xenpv_init(ram_addr_t ram_size, int 
> vga_ram_size,
>          goto err;
>      }
>  
> +    xen_init_vnc();
> +
>      /* create dummy cpu, halted */
>      if (cpu_model == NULL) {
>  #ifdef TARGET_X86_64
> -- 
> 1.5.5.1
> 
> 
> _______________________________________________
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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