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



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>
---

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;
-- 
2.11.0


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