[Libvir] QEMU networking XML docs summary
Daniel P. Berrange
berrange at redhat.com
Wed Mar 21 15:38:49 UTC 2007
On Fri, Mar 16, 2007 at 01:38:47PM +0000, Daniel P. Berrange wrote:
> 3. Bridge to to LAN
>
> Provides a bridge from the VM directly onto the LAN. This assumes there
> is a bridge device on the host which has one or more of the hosts
> physical NICs enslaved. The guest VM will have an associated tun device
> created with a name of vnetN, which can also be overriden with the
> <target> element. The tun device will be enslaved to the bridge. The
> IP range / network configuration is whatever is used on the LAN. This
> provides the guest VM full incoming & outgoing net access just like
> a physical machine. Examples include
>
> <interface type='bridge'>
> <source dev='br0'/>
> </interface>
This was actually wrong & violating the schema - it should instead be
<source bridge='br0'/>
> <interface type='bridge'>
> <source dev='br0'/>
> <target dev='vnet7'/>
> <mac address="11:22:33:44:55:66:/>
> </interface>
Likewise s/source dev=/source bridge=/
The impl in the qemud/conf.c was also wrong - the attached patch will fix
it to be compliant with the schema & Xen impl which is what tools like
virt-manager/virt-install were expecting.
Dan.
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-------------- next part --------------
Index: qemud/conf.c
===================================================================
RCS file: /data/cvs/libvirt/qemud/conf.c,v
retrieving revision 1.44
diff -u -p -r1.44 conf.c
--- qemud/conf.c 20 Mar 2007 16:50:42 -0000 1.44
+++ qemud/conf.c 21 Mar 2007 15:34:40 -0000
@@ -508,7 +508,7 @@ static struct qemud_vm_net_def *qemudPar
} else if ((network == NULL) &&
(net->type == QEMUD_NET_BRIDGE) &&
(xmlStrEqual(cur->name, BAD_CAST "source"))) {
- bridge = xmlGetProp(cur, BAD_CAST "dev");
+ bridge = xmlGetProp(cur, BAD_CAST "bridge");
} else if ((network == NULL) &&
((net->type == QEMUD_NET_SERVER) ||
(net->type == QEMUD_NET_CLIENT) ||
@@ -2549,7 +2549,7 @@ char *qemudGenerateXML(struct qemud_serv
break;
case QEMUD_NET_BRIDGE:
- if (bufferVSprintf(buf, " <source dev='%s'/>\n", net->dst.bridge.brname) < 0)
+ if (bufferVSprintf(buf, " <source bridge='%s'/>\n", net->dst.bridge.brname) < 0)
goto no_memory;
if (net->dst.bridge.ifname[0] != '\0') {
if (bufferVSprintf(buf, " <target dev='%s'/>\n", net->dst.bridge.ifname) < 0)
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