10:08 p.m.
* add --system flag for net-dumpxml to show information about the
attached interfaces of the virtual network.
* call virNetworkGetXMLDesc in cmdNetworkDestroy to get the live state
info to check whether the virtual network is in use.
* add --force flag for net-destroy to forcibly destroy the virtual
network even if it's in use.
Signed-off-by: Lin Ma <lma(a)suse.com>
---
tools/virsh-network.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++----
tools/virsh.pod | 8 +++++--
2 files changed, 64 insertions(+), 6 deletions(-)
diff --git a/tools/virsh-network.c b/tools/virsh-network.c
index 5f8743c..17a5710 100644
--- a/tools/virsh-network.c
+++ b/tools/virsh-network.c
@@ -253,6 +253,10 @@ static const vshCmdOptDef opts_network_destroy[] = {
.flags = VSH_OFLAG_REQ,
.help = N_("network name or uuid")
},
+ {.name = "force",
+ .type = VSH_OT_BOOL,
+ .help = N_("Forcefully stop a given network")
+ },
{.name = NULL}
};
@@ -260,20 +264,55 @@ static bool
cmdNetworkDestroy(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
- bool ret = true;
+ bool ret = false;
const char *name;
+ char *br_xml = NULL;
+ xmlDocPtr xml_doc = NULL;
+ xmlXPathContextPtr ctxt = NULL;
if (!(network = vshCommandOptNetwork(ctl, cmd, &name)))
- return false;
+ goto cleanup;
+
+#ifdef WITH_NETCF
+ if (!vshCommandOptBool(cmd, "force")) {
+ if (virNetworkIsActive(network) <= 0) {
+ vshError(ctl, "%s", _("network is not active"));
+ goto cleanup;
+ }
+ if (!(br_xml = virNetworkGetXMLDesc(network,
+ VIR_NETWORK_XML_IFACE_ATTACHED)))
+ goto cleanup;
+
+ if (!(xml_doc = virXMLParseStringCtxt(br_xml,
+ _("(bridge interface "
+ "definition)"), &ctxt))) {
+ vshError(ctl, "%s", _("Failed to parse network
configuration"));
+ goto cleanup;
+ }
+
+ if (virXPathNode("./bridge/interface[1]", ctxt) != NULL) {
+ vshError(ctl, "%s", _("The network is in use by
guests"));
+ vshPrint(ctl, "%s", _("Use --force flag if you do want to do
so"));
+ goto cleanup;
+ }
+ }
+#endif
if (virNetworkDestroy(network) == 0) {
vshPrint(ctl, _("Network %s destroyed\n"), name);
} else {
vshError(ctl, _("Failed to destroy network %s"), name);
- ret = false;
+ goto cleanup;
}
- virNetworkFree(network);
+ ret = true;
+ cleanup:
+ if(network)
+ virNetworkFree(network);
+ VIR_FREE(br_xml);
+ xmlXPathFreeContext(ctxt);
+ xmlFreeDoc(xml_doc);
+
return ret;
}
@@ -300,6 +339,10 @@ static const vshCmdOptDef opts_network_dumpxml[] = {
.type = VSH_OT_BOOL,
.help = N_("network information of an inactive domain")
},
+ {.name = "system",
+ .type = VSH_OT_BOOL,
+ .help = N_("current live state information including attached
interfaces")
+ },
{.name = NULL}
};
@@ -311,6 +354,7 @@ cmdNetworkDumpXML(vshControl *ctl, const vshCmd *cmd)
char *dump;
unsigned int flags = 0;
int inactive;
+ bool system = false;
if (!(network = vshCommandOptNetwork(ctl, cmd, NULL)))
return false;
@@ -319,6 +363,16 @@ cmdNetworkDumpXML(vshControl *ctl, const vshCmd *cmd)
if (inactive)
flags |= VIR_NETWORK_XML_INACTIVE;
+ system = vshCommandOptBool(cmd, "system");
+ if (system) {
+ flags = VIR_NETWORK_XML_IFACE_ATTACHED;
+ if (virNetworkIsActive(network) <= 0) {
+ vshError(ctl, "%s", _("--system only works on active
network"));
+ virNetworkFree(network);
+ return false;
+ }
+ }
+
dump = virNetworkGetXMLDesc(network, flags);
if (dump != NULL) {
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 804458e..3373ada 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -2672,16 +2672,20 @@ to get a description of the XML network format used by libvirt.
Define a persistent virtual network from an XML I<file>, the network is just
defined but not instantiated (started).
-=item B<net-destroy> I<network>
+=item B<net-destroy> I<network> [I<--force>]
Destroy (stop) a given transient or persistent virtual network
specified by its name or UUID. This takes effect immediately.
+If I<--force> is specified, then forcefully destroy the virtual
+network even if it's in use.
-=item B<net-dumpxml> I<network> [I<--inactive>]
+=item B<net-dumpxml> I<network> [I<--inactive>] [I<--system>]
Output the virtual network information as an XML dump to stdout.
If I<--inactive> is specified, then physical functions are not
expanded into their associated virtual functions.
+If I<--system> is specified, then directly output the current
+live state corresponding to this network from system.
=item B<net-edit> I<network>
--
1.8.4