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virsh: Fix domdisplay when domain only uses TLS 

It's possible to create a domain which will only use a TLS port
and will not have a non-TLS port set by using:
<graphics type='spice' autoport='yes' defaultMode='secure'/>
In such a setup, the 'graphics' node for the running domain will be:
<graphics type='spice' tlsPort='5900'
          autoport='yes' listen='127.0.0.1'
          defaultMode='secure'>

However, cmdDomDisplay loops over all the 'graphics' node, and it
ignores nodes which don't have a 'port' attribute. This means
'virsh domdisplay' will only return an empty string for domains
as the one above.

This commit looks for both 'port' and 'tlsPort' before deciding
to ignore a graphics node. It also makes sure 'port' is not printed
when it's not set.
This makes 'virsh domdisplay' return
'spice://127.0.0.1?tls-port=5900' for domains using only a TLS
port.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
This commit is contained in:
Christophe Fergeau 2013-09-25 17:48:01 +02:00
parent 9e03f313b8
commit 9976c4b9a6
1 changed files with 16 additions and 12 deletions
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28
tools/virsh-domain.c
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@ -9074,6 +9074,20 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
/* If there is no port number for this type, then jump to the next
* scheme */
if (tmp)
port = 0;
/* Create our XPATH lookup for TLS Port (automatically skipped
* for unsupported schemes */
if (virAsprintf(&xpath, xpath_fmt, scheme[iter], "tlsPort") < 0)
goto cleanup;
/* Attempt to get the TLS port number */
tmp = virXPathInt(xpath, ctxt, &tls_port);
VIR_FREE(xpath);
if (tmp)
tls_port = 0;
if (!port && !tls_port)
continue;
/* Create our XPATH lookup for the current display's address */
@ -9104,17 +9118,6 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
port -= 5900;
}
/* Create our XPATH lookup for TLS Port (automatically skipped
* for unsupported schemes */
if (virAsprintf(&xpath, xpath_fmt, scheme[iter], "tlsPort") < 0)
goto cleanup;
/* Attempt to get the TLS port number */
tmp = virXPathInt(xpath, ctxt, &tls_port);
VIR_FREE(xpath);
if (tmp)
tls_port = 0;
/* Build up the full URI, starting with the scheme */
virBufferAsprintf(&buf, "%s://", scheme[iter]);
@ -9129,7 +9132,8 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
virBufferAsprintf(&buf, "%s", listen_addr);
/* Add the port */
virBufferAsprintf(&buf, ":%d", port);
if (port)
virBufferAsprintf(&buf, ":%d", port);
/* TLS Port */
if (tls_port) {