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libvirt/tools/virsh-completer-domain.c

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/*
* virsh-completer-domain.c: virsh completer callbacks related to domains
*
* Copyright (C) 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "virsh-completer-domain.h"
#include "viralloc.h"
#include "virmacaddr.h"
#include "virsh-domain.h"
#include "virsh-util.h"
#include "virsh.h"
#include "virstring.h"
#include "virxml.h"
char **
virshDomainNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virDomainPtr *domains = NULL;
int ndomains = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_ACTIVE |
VIR_CONNECT_LIST_DOMAINS_INACTIVE |
VIR_CONNECT_LIST_DOMAINS_OTHER |
VIR_CONNECT_LIST_DOMAINS_PAUSED |
VIR_CONNECT_LIST_DOMAINS_PERSISTENT |
VIR_CONNECT_LIST_DOMAINS_RUNNING |
VIR_CONNECT_LIST_DOMAINS_SHUTOFF,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((ndomains = virConnectListAllDomains(priv->conn, &domains, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, ndomains + 1) < 0)
goto cleanup;
for (i = 0; i < ndomains; i++) {
const char *name = virDomainGetName(domains[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < ndomains; i++)
virshDomainFree(domains[i]);
VIR_FREE(domains);
return ret;
}
char **
virshDomainInterfaceCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
VIR_AUTOPTR(xmlDoc) xmldoc = NULL;
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
int ninterfaces;
VIR_AUTOFREE(xmlNodePtr *) interfaces = NULL;
size_t i;
unsigned int domainXMLFlags = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = 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)
return NULL;
ninterfaces = virXPathNodeSet("./devices/interface", ctxt, &interfaces);
if (ninterfaces < 0)
return NULL;
if (VIR_ALLOC_N(tmp, ninterfaces + 1) < 0)
return NULL;
for (i = 0; i < ninterfaces; i++) {
ctxt->node = interfaces[i];
if (!(flags & VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC) &&
(tmp[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 (!(tmp[i] = virXPathString("string(./mac/@address)", ctxt)))
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshDomainDiskTargetCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
VIR_AUTOPTR(xmlDoc) xmldoc = NULL;
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
VIR_AUTOFREE(xmlNodePtr *) disks = NULL;
int ndisks;
size_t i;
VIR_AUTOSTRINGLIST tmp = NULL;
char **ret = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (virshDomainGetXML(ctl, cmd, 0, &xmldoc, &ctxt) < 0)
return NULL;
ndisks = virXPathNodeSet("./devices/disk", ctxt, &disks);
if (ndisks < 0)
return NULL;
if (VIR_ALLOC_N(tmp, ndisks + 1) < 0)
return NULL;
for (i = 0; i < ndisks; i++) {
ctxt->node = disks[i];
if (!(tmp[i] = virXPathString("string(./target/@dev)", ctxt)))
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshDomainEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (VIR_ALLOC_N(tmp, VIR_DOMAIN_EVENT_ID_LAST + 1) < 0)
return NULL;
for (i = 0; i < VIR_DOMAIN_EVENT_ID_LAST; i++) {
if (VIR_STRDUP(tmp[i], virshDomainEventCallbacks[i].name) < 0)
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshDomainInterfaceStateCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
const char *iface = NULL;
char **ret = NULL;
VIR_AUTOPTR(xmlDoc) xml = NULL;
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
virMacAddr macaddr;
char macstr[VIR_MAC_STRING_BUFLEN] = "";
int ninterfaces;
VIR_AUTOFREE(xmlNodePtr *) interfaces = NULL;
VIR_AUTOFREE(char *) xpath = NULL;
VIR_AUTOFREE(char *) state = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (virshDomainGetXML(ctl, cmd, flags, &xml, &ctxt) < 0)
return NULL;
if (vshCommandOptStringReq(ctl, cmd, "interface", &iface) < 0)
return NULL;
/* normalize the mac addr */
if (virMacAddrParse(iface, &macaddr) == 0)
virMacAddrFormat(&macaddr, macstr);
if (virAsprintf(&xpath, "/domain/devices/interface[(mac/@address = '%s') or "
" (target/@dev = '%s')]",
macstr, iface) < 0)
return NULL;
if ((ninterfaces = virXPathNodeSet(xpath, ctxt, &interfaces)) < 0)
return NULL;
if (ninterfaces != 1)
return NULL;
ctxt->node = interfaces[0];
if (VIR_ALLOC_N(tmp, 2) < 0)
return NULL;
if ((state = virXPathString("string(./link/@state)", ctxt)) &&
STREQ(state, "down")) {
if (VIR_STRDUP(tmp[0], "up") < 0)
return NULL;
} else {
if (VIR_STRDUP(tmp[0], "down") < 0)
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshDomainDeviceAliasCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
VIR_AUTOPTR(xmlDoc) xmldoc = NULL;
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
int naliases;
VIR_AUTOFREE(xmlNodePtr *) aliases = NULL;
size_t i;
unsigned int domainXMLFlags = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, 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)
return NULL;
naliases = virXPathNodeSet("./devices//alias/@name", ctxt, &aliases);
if (naliases < 0)
return NULL;
if (VIR_ALLOC_N(tmp, naliases + 1) < 0)
return NULL;
for (i = 0; i < naliases; i++) {
if (!(tmp[i] = virXMLNodeContentString(aliases[i])))
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshDomainShutdownModeCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
const char *modes[] = {"acpi", "agent", "initctl", "signal", "paravirt", NULL};
const char *mode = NULL;
virCheckFlags(0, NULL);
if (vshCommandOptStringQuiet(ctl, cmd, "mode", &mode) < 0)
return NULL;
return virshCommaStringListComplete(mode, modes);
}
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