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7e7db4bfe0
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@redhat.com>
150 lines
4.3 KiB
C
150 lines
4.3 KiB
C
/*
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* virsh-completer.c: virsh completer callbacks
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*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Michal Privoznik <mprivozn@redhat.com>
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*/
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#include <config.h>
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#include "virsh-completer.h"
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#include "virsh.h"
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#include "virsh-util.h"
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#include "internal.h"
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#include "viralloc.h"
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#include "virstring.h"
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#include "virxml.h"
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char **
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virshDomainNameCompleter(vshControl *ctl,
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const vshCmd *cmd ATTRIBUTE_UNUSED,
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unsigned int flags)
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{
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virshControlPtr priv = ctl->privData;
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virDomainPtr *domains = NULL;
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int ndomains = 0;
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size_t i = 0;
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char **ret = NULL;
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virCheckFlags(VIR_CONNECT_LIST_DOMAINS_ACTIVE |
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VIR_CONNECT_LIST_DOMAINS_INACTIVE |
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VIR_CONNECT_LIST_DOMAINS_PERSISTENT |
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VIR_CONNECT_LIST_DOMAINS_TRANSIENT |
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VIR_CONNECT_LIST_DOMAINS_RUNNING |
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VIR_CONNECT_LIST_DOMAINS_PAUSED |
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VIR_CONNECT_LIST_DOMAINS_SHUTOFF |
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VIR_CONNECT_LIST_DOMAINS_OTHER |
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VIR_CONNECT_LIST_DOMAINS_MANAGEDSAVE |
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VIR_CONNECT_LIST_DOMAINS_NO_MANAGEDSAVE |
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VIR_CONNECT_LIST_DOMAINS_AUTOSTART |
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VIR_CONNECT_LIST_DOMAINS_NO_AUTOSTART |
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VIR_CONNECT_LIST_DOMAINS_HAS_SNAPSHOT |
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VIR_CONNECT_LIST_DOMAINS_NO_SNAPSHOT,
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NULL);
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if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
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return NULL;
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if ((ndomains = virConnectListAllDomains(priv->conn, &domains, flags)) < 0)
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return NULL;
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if (VIR_ALLOC_N(ret, ndomains + 1) < 0)
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goto error;
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for (i = 0; i < ndomains; i++) {
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const char *name = virDomainGetName(domains[i]);
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if (VIR_STRDUP(ret[i], name) < 0)
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goto error;
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virshDomainFree(domains[i]);
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}
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VIR_FREE(domains);
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return ret;
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error:
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for (; i < ndomains; i++)
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virshDomainFree(domains[i]);
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VIR_FREE(domains);
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for (i = 0; i < ndomains; i++)
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VIR_FREE(ret[i]);
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VIR_FREE(ret);
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return NULL;
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}
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char **
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virshDomainInterfaceCompleter(vshControl *ctl,
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const vshCmd *cmd,
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unsigned int flags)
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{
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virshControlPtr priv = ctl->privData;
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xmlDocPtr xmldoc = NULL;
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xmlXPathContextPtr ctxt = NULL;
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int ninterfaces;
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xmlNodePtr *interfaces = NULL;
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size_t i;
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unsigned int domainXMLFlags = 0;
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char **ret = NULL;
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virCheckFlags(VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC, NULL);
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if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
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return NULL;
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if (vshCommandOptBool(cmd, "config"))
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domainXMLFlags = VIR_DOMAIN_XML_INACTIVE;
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if (virshDomainGetXML(ctl, cmd, domainXMLFlags, &xmldoc, &ctxt) < 0)
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goto error;
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ninterfaces = virXPathNodeSet("./devices/interface", ctxt, &interfaces);
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if (ninterfaces < 0)
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goto error;
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if (VIR_ALLOC_N(ret, ninterfaces + 1) < 0)
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goto error;
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for (i = 0; i < ninterfaces; i++) {
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ctxt->node = interfaces[i];
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if (!(flags & VIRSH_DOMAIN_INTERFACE_COMPLETER_MAC) &&
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(ret[i] = virXPathString("string(./target/@dev)", ctxt)))
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continue;
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/* In case we are dealing with inactive domain XML there's no
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* <target dev=''/>. Offer MAC addresses then. */
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if (!(ret[i] = virXPathString("string(./mac/@address)", ctxt)))
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goto error;
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}
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VIR_FREE(interfaces);
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xmlFreeDoc(xmldoc);
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xmlXPathFreeContext(ctxt);
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return ret;
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error:
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VIR_FREE(interfaces);
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xmlFreeDoc(xmldoc);
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xmlXPathFreeContext(ctxt);
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virStringListFree(ret);
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return NULL;
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}
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