libvirt/tools/virsh-completer-domain.c
Ján Tomko 221f2c0383 virsh-completer: use g_new0 instead of VIR_ALLOC_N
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-09-15 13:46:11 +02:00

584 lines
16 KiB
C

/*
* 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-domain-monitor.h"
#include "virsh-util.h"
#include "virsh.h"
#include "virstring.h"
#include "virxml.h"
#include "virperf.h"
char **
virshDomainNameCompleter(vshControl *ctl,
const vshCmd *cmd G_GNUC_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 |
VIR_CONNECT_LIST_DOMAINS_MANAGEDSAVE |
VIR_CONNECT_LIST_DOMAINS_HAS_SNAPSHOT |
VIR_CONNECT_LIST_DOMAINS_HAS_CHECKPOINT,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((ndomains = virConnectListAllDomains(priv->conn, &domains, flags)) < 0)
return NULL;
tmp = g_new0(char *, ndomains + 1);
for (i = 0; i < ndomains; i++) {
const char *name = virDomainGetName(domains[i]);
tmp[i] = g_strdup(name);
}
ret = g_steal_pointer(&tmp);
for (i = 0; i < ndomains; i++)
virshDomainFree(domains[i]);
g_free(domains);
return ret;
}
char **
virshDomainUUIDCompleter(vshControl *ctl,
const vshCmd *cmd G_GNUC_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 |
VIR_CONNECT_LIST_DOMAINS_MANAGEDSAVE |
VIR_CONNECT_LIST_DOMAINS_HAS_SNAPSHOT |
VIR_CONNECT_LIST_DOMAINS_HAS_CHECKPOINT,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((ndomains = virConnectListAllDomains(priv->conn, &domains, flags)) < 0)
return NULL;
tmp = g_new0(char *, ndomains + 1);
for (i = 0; i < ndomains; i++) {
char uuid[VIR_UUID_STRING_BUFLEN];
if (virDomainGetUUIDString(domains[i], uuid) < 0)
goto cleanup;
tmp[i] = g_strdup(uuid);
}
ret = g_steal_pointer(&tmp);
cleanup:
for (i = 0; i < ndomains; i++)
virshDomainFree(domains[i]);
g_free(domains);
return ret;
}
char **
virshDomainInterfaceCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
g_autoptr(xmlDoc) xmldoc = NULL;
g_autoptr(xmlXPathContext) ctxt = NULL;
int ninterfaces;
g_autofree xmlNodePtr *interfaces = NULL;
size_t i;
unsigned int domainXMLFlags = 0;
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;
tmp = g_new0(char *, ninterfaces + 1);
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;
}
return g_steal_pointer(&tmp);
}
char **
virshDomainDiskTargetCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
g_autoptr(xmlDoc) xmldoc = NULL;
g_autoptr(xmlXPathContext) ctxt = NULL;
g_autofree xmlNodePtr *disks = NULL;
int ndisks;
size_t i;
VIR_AUTOSTRINGLIST tmp = 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;
tmp = g_new0(char *, ndisks + 1);
for (i = 0; i < ndisks; i++) {
ctxt->node = disks[i];
if (!(tmp[i] = virXPathString("string(./target/@dev)", ctxt)))
return NULL;
}
return g_steal_pointer(&tmp);
}
char **
virshDomainEventNameCompleter(vshControl *ctl G_GNUC_UNUSED,
const vshCmd *cmd G_GNUC_UNUSED,
unsigned int flags)
{
size_t i = 0;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
tmp = g_new0(char *, VIR_DOMAIN_EVENT_ID_LAST + 1);
for (i = 0; i < VIR_DOMAIN_EVENT_ID_LAST; i++)
tmp[i] = g_strdup(virshDomainEventCallbacks[i].name);
return g_steal_pointer(&tmp);
}
char **
virshDomainInterfaceStateCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
const char *iface = NULL;
g_autoptr(xmlDoc) xml = NULL;
g_autoptr(xmlXPathContext) ctxt = NULL;
virMacAddr macaddr;
char macstr[VIR_MAC_STRING_BUFLEN] = "";
int ninterfaces;
g_autofree xmlNodePtr *interfaces = NULL;
g_autofree char *xpath = NULL;
g_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);
xpath = g_strdup_printf("/domain/devices/interface[(mac/@address = '%s') or "
" (target/@dev = '%s')]", macstr,
iface);
if ((ninterfaces = virXPathNodeSet(xpath, ctxt, &interfaces)) < 0)
return NULL;
if (ninterfaces != 1)
return NULL;
ctxt->node = interfaces[0];
tmp = g_new0(char *, 2);
if ((state = virXPathString("string(./link/@state)", ctxt)) &&
STREQ(state, "down")) {
tmp[0] = g_strdup("up");
} else {
tmp[0] = g_strdup("down");
}
return g_steal_pointer(&tmp);
}
char **
virshDomainDeviceAliasCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
g_autoptr(xmlDoc) xmldoc = NULL;
g_autoptr(xmlXPathContext) ctxt = NULL;
int naliases;
g_autofree xmlNodePtr *aliases = NULL;
size_t i;
unsigned int domainXMLFlags = 0;
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;
tmp = g_new0(char *, naliases + 1);
for (i = 0; i < naliases; i++) {
if (!(tmp[i] = virXMLNodeContentString(aliases[i])))
return NULL;
}
return g_steal_pointer(&tmp);
}
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);
}
char **
virshDomainInterfaceAddrSourceCompleter(vshControl *ctl G_GNUC_UNUSED,
const vshCmd *cmd G_GNUC_UNUSED,
unsigned int flags)
{
char **ret = NULL;
size_t i;
virCheckFlags(0, NULL);
ret = g_new0(typeof(*ret), VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LAST + 1);
for (i = 0; i < VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LAST; i++)
ret[i] = g_strdup(virshDomainInterfaceAddressesSourceTypeToString(i));
return ret;
}
char **
virshDomainHostnameSourceCompleter(vshControl *ctl G_GNUC_UNUSED,
const vshCmd *cmd G_GNUC_UNUSED,
unsigned int flags)
{
char **ret = NULL;
size_t i;
virCheckFlags(0, NULL);
ret = g_new0(typeof(*ret), VIRSH_DOMAIN_HOSTNAME_SOURCE_LAST + 1);
for (i = 0; i < VIRSH_DOMAIN_HOSTNAME_SOURCE_LAST; i++)
ret[i] = g_strdup(virshDomainHostnameSourceTypeToString(i));
return ret;
}
char **
virshDomainPerfEnableCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
size_t i = 0;
VIR_AUTOSTRINGLIST events = NULL;
const char *event = NULL;
virCheckFlags(0, NULL);
events = g_new0(char *, VIR_PERF_EVENT_LAST + 1);
for (i = 0; i < VIR_PERF_EVENT_LAST; i++)
events[i] = g_strdup(virPerfEventTypeToString(i));
if (vshCommandOptStringQuiet(ctl, cmd, "enable", &event) < 0)
return NULL;
return virshCommaStringListComplete(event, (const char **)events);
}
char **
virshDomainPerfDisableCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
size_t i = 0;
VIR_AUTOSTRINGLIST events = NULL;
const char *event = NULL;
virCheckFlags(0, NULL);
events = g_new0(char *, VIR_PERF_EVENT_LAST + 1);
for (i = 0; i < VIR_PERF_EVENT_LAST; i++)
events[i] = g_strdup(virPerfEventTypeToString(i));
if (vshCommandOptStringQuiet(ctl, cmd, "disable", &event) < 0)
return NULL;
return virshCommaStringListComplete(event, (const char **)events);
}
char **
virshDomainIOThreadIdCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virDomainPtr dom = NULL;
size_t niothreads = 0;
g_autofree virDomainIOThreadInfoPtr *info = NULL;
size_t i;
int rc;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return NULL;
if ((rc = virDomainGetIOThreadInfo(dom, &info, flags)) < 0)
goto cleanup;
niothreads = rc;
tmp = g_new0(char *, niothreads + 1);
for (i = 0; i < niothreads; i++)
tmp[i] = g_strdup_printf("%u", info[i]->iothread_id);
ret = g_steal_pointer(&tmp);
cleanup:
virshDomainFree(dom);
return ret;
}
char **
virshDomainVcpuCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virDomainPtr dom = NULL;
xmlDocPtr xml = NULL;
xmlXPathContextPtr ctxt = NULL;
int nvcpus = 0;
unsigned int id;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return NULL;
if (virshDomainGetXMLFromDom(ctl, dom, VIR_DOMAIN_XML_INACTIVE,
&xml, &ctxt) < 0)
goto cleanup;
/* Query the max rather than the current vcpu count */
if (virXPathInt("string(/domain/vcpu)", ctxt, &nvcpus) < 0)
goto cleanup;
tmp = g_new0(char *, nvcpus + 1);
for (id = 0; id < nvcpus; id++)
tmp[id] = g_strdup_printf("%u", id);
ret = g_steal_pointer(&tmp);
cleanup:
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
virshDomainFree(dom);
return ret;
}
char **
virshDomainVcpulistCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virDomainPtr dom = NULL;
xmlDocPtr xml = NULL;
xmlXPathContextPtr ctxt = NULL;
int nvcpus = 0;
unsigned int id;
VIR_AUTOSTRINGLIST vcpulist = NULL;
const char *vcpuid = NULL;
char **ret = NULL;
virCheckFlags(0, NULL);
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return NULL;
if (vshCommandOptStringQuiet(ctl, cmd, "vcpulist", &vcpuid) < 0)
goto cleanup;
if (virshDomainGetXMLFromDom(ctl, dom, VIR_DOMAIN_XML_INACTIVE,
&xml, &ctxt) < 0)
goto cleanup;
/* Query the max rather than the current vcpu count */
if (virXPathInt("string(/domain/vcpu)", ctxt, &nvcpus) < 0)
goto cleanup;
vcpulist = g_new0(char *, nvcpus + 1);
for (id = 0; id < nvcpus; id++)
vcpulist[id] = g_strdup_printf("%u", id);
ret = virshCommaStringListComplete(vcpuid, (const char **)vcpulist);
cleanup:
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
virshDomainFree(dom);
return ret;
}
char **
virshDomainCpulistCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
size_t i;
int cpunum;
g_autofree unsigned char *cpumap = NULL;
unsigned int online;
VIR_AUTOSTRINGLIST cpulist = NULL;
const char *cpuid = NULL;
virCheckFlags(0, NULL);
if (vshCommandOptStringQuiet(ctl, cmd, "cpulist", &cpuid) < 0)
return NULL;
if ((cpunum = virNodeGetCPUMap(priv->conn, &cpumap, &online, 0)) < 0)
return NULL;
cpulist = g_new0(char *, cpunum + 1);
for (i = 0; i < cpunum; i++)
cpulist[i] = g_strdup_printf("%zu", i);
return virshCommaStringListComplete(cpuid, (const char **)cpulist);
}