For given domain fetch list of defined interfaces. This can be
used for commands like domif-getlink and others. If available,
the interface name is returned (e.g. "vnet0", usually available
only for running domains), if not the MAC address is returned.
Moreover, the detach-interface command requires only MAC address
and therefore we have new flag that forces the completer to
return just the MAC address.
Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
tools/virsh-completer.c | 60 ++++++++++++++++++++++++++++++++++++++++++++
tools/virsh-completer.h | 8 ++++++
tools/virsh-domain-monitor.c | 3 +++
tools/virsh-domain.c | 4 +++
4 files changed, 75 insertions(+)
diff --git a/tools/virsh-completer.c b/tools/virsh-completer.c
index 4e32b882b..25c3aaa0d 100644
--- a/tools/virsh-completer.c
+++ b/tools/virsh-completer.c
@@ -29,6 +29,7 @@
#include "internal.h"
#include "viralloc.h"
#include "virstring.h"
+#include "virxml.h"
char **
@@ -88,3 +89,62 @@ virshDomainNameCompleter(vshControl *ctl,
VIR_FREE(ret);
return NULL;
}
+
+
+char **
+virshDomainInterfaceCompleter(vshControl *ctl,
+ const vshCmd *cmd,
+ unsigned int flags)
+{
+ virshControlPtr priv = ctl->privData;
+ xmlDocPtr xmldoc = NULL;
+ xmlXPathContextPtr ctxt = NULL;
+ int ninterfaces;
+ xmlNodePtr *interfaces = NULL;
+ size_t i;
+ unsigned int domainXMLFlags = 0;
+ char **ret = NULL;
+
+ virCheckFlags(VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC, NULL);
+
+ if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
+ return NULL;
+
+ if (vshCommandOptBool(cmd, "config"))
+ domainXMLFlags = VIR_DOMAIN_XML_INACTIVE;
+
+ if (virshDomainGetXML(ctl, cmd, domainXMLFlags, &xmldoc, &ctxt) < 0)
+ goto error;
+
+ ninterfaces = virXPathNodeSet("./devices/interface", ctxt, &interfaces);
+ if (ninterfaces < 0)
+ goto error;
+
+ if (VIR_ALLOC_N(ret, ninterfaces + 1) < 0)
+ goto error;
+
+ for (i = 0; i < ninterfaces; i++) {
+ ctxt->node = interfaces[i];
+
+ if (!(flags & VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC) &&
+ (ret[i] = virXPathString("string(./target/@dev)", ctxt)))
+ continue;
+
+ /* In case we are dealing with inactive domain XML there's no
+ * <target dev=''/>. Offer MAC addresses then. */
+ if (!(ret[i] = virXPathString("string(./mac/@address)", ctxt)))
+ goto error;
+ }
+
+ VIR_FREE(interfaces);
+ xmlFreeDoc(xmldoc);
+ xmlXPathFreeContext(ctxt);
+ return ret;
+
+ error:
+ VIR_FREE(interfaces);
+ xmlFreeDoc(xmldoc);
+ xmlXPathFreeContext(ctxt);
+ virStringListFree(ret);
+ return NULL;
+}
diff --git a/tools/virsh-completer.h b/tools/virsh-completer.h
index 288e17909..680cd12ff 100644
--- a/tools/virsh-completer.h
+++ b/tools/virsh-completer.h
@@ -30,4 +30,12 @@ char ** virshDomainNameCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags);
+enum {
+ VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC = 1 << 1, /* Return just MACs */
+};
+
+char ** virshDomainInterfaceCompleter(vshControl *ctl,
+ const vshCmd *cmd,
+ unsigned int flags);
+
#endif
diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
index a09eb010c..32a42707e 100644
--- a/tools/virsh-domain-monitor.c
+++ b/tools/virsh-domain-monitor.c
@@ -659,6 +659,7 @@ static const vshCmdOptDef opts_domif_getlink[] = {
{.name = "interface",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
+ .completer = virshDomainInterfaceCompleter,
.help = N_("interface device (MAC Address)")
},
{.name = "persistent",
@@ -995,6 +996,7 @@ static const vshCmdOptDef opts_domifstat[] = {
{.name = "interface",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
+ .completer = virshDomainInterfaceCompleter,
.help = N_("interface device specified by name or MAC Address")
},
{.name = NULL}
@@ -2149,6 +2151,7 @@ static const vshCmdOptDef opts_domifaddr[] = {
{.name = "interface",
.type = VSH_OT_STRING,
.flags = VSH_OFLAG_NONE,
+ .completer = virshDomainInterfaceCompleter,
.help = N_("network interface name")},
{.name = "full",
.type = VSH_OT_BOOL,
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 13f8db3dd..0f329d6d7 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -2977,6 +2977,7 @@ static const vshCmdOptDef opts_domif_setlink[] = {
{.name = "interface",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
+ .completer = virshDomainInterfaceCompleter,
.help = N_("interface device (MAC Address)")
},
{.name = "state",
@@ -3147,6 +3148,7 @@ static const vshCmdOptDef opts_domiftune[] = {
{.name = "interface",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
+ .completer = virshDomainInterfaceCompleter,
.help = N_("interface device (MAC Address)")
},
{.name = "inbound",
@@ -11983,6 +11985,8 @@ static const vshCmdOptDef opts_detach_interface[] = {
},
{.name = "mac",
.type = VSH_OT_STRING,
+ .completer = virshDomainInterfaceCompleter,
+ .completer_flags = VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC,
.help = N_("MAC address")
},
VIRSH_COMMON_OPT_DOMAIN_PERSISTENT,
--
2.13.6
--
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