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libvirt/tools/virsh-completer.c
Eric Blake 689beaa47c backup: Implement virsh support for checkpoints 
Introduce a bunch of new virsh commands for managing checkpoints in
isolation. More commands are needed for performing incremental
backups, but these commands were easy to implement by modeling heavily
after virsh-snapshot.c. There is no need for checkpoint-revert or
checkpoint-current since those snapshot APIs have no checkpoint
counterpart.  Similarly, it is not necessary to change which
checkpoint is current when redefining from XML, since until we
integrate checkpoints with snapshots, there is only a linear chain
(and you can deduce the current checkpoint by instead using
'checkpoint-list --leaves').  Other aspects of checkpoint-list are
also a bit simpler than the snapshot counterpart, in part because we
don't have to cater to back-compat to older API.

Upcoming patches will test these interfaces once the test driver
supports checkpoints.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-07-26 16:48:58 -05:00

1157 lines
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/*
* virsh-completer.c: virsh completer callbacks
*
* Copyright (C) 2017 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.h"
#include "virsh-domain.h"
#include "virsh.h"
#include "virsh-pool.h"
#include "virsh-nodedev.h"
#include "virsh-util.h"
#include "virsh-secret.h"
#include "virsh-network.h"
#include "internal.h"
#include "virutil.h"
#include "viralloc.h"
#include "virmacaddr.h"
#include "virstring.h"
#include "virxml.h"
#include "conf/node_device_conf.h"
/**
* A completer callback is a function that accepts three arguments:
*
* @ctl: virsh control structure
* @cmd: parsed input
* @flags: optional flags to alter completer's behaviour
*
* The @ctl contains connection to the daemon (should the
* completer need it). Any completer that requires a connection
* must check whether connection is still alive.
*
* The @cmd contains parsed user input which might be missing
* some arguments (if user is still typing the command), but may
* already contain important data. For instance if the completer
* needs domain XML it may inspect @cmd to find --domain. Using
* existing wrappers is advised. If @cmd does not contain all
* necessary bits, completer might return sensible defaults (i.e.
* generic values not tailored to specific use case) or return
* NULL (i.e. no strings are offered to the user for completion).
*
* The @flags contains a .completer_flags value defined for each
* use or 0 if no .completer_flags were specified. If a completer
* is generic enough @flags can be used to alter its behaviour.
* For instance, a completer to fetch names of domains can use
* @flags to return names of only domains in a particular state
* that the command accepts.
*
* Under no circumstances should a completer output anything.
* Neither to stdout nor to stderr. This would harm the user
* experience.
*/
/**
* virshCommaStringListComplete:
* @input: user input so far
* @options: ALL options available for argument
*
* Some arguments to our commands accept the following form:
*
* virsh command --arg str1,str2,str3
*
* This does not play nicely with our completer funtions, because
* they have to return strings prepended with user's input. For
* instance:
*
* str1,str2,str3,strA
* str1,str2,str3,strB
* str1,str2,str3,strC
*
* This helper function takes care of that. In this specific case
* it would be called as follows:
*
* virshCommaStringListComplete("str1,str2,str3",
* {"strA", "strB", "strC", NULL});
*
* Returns: string list of completions on success,
* NULL otherwise.
*/
static char **
virshCommaStringListComplete(const char *input,
const char **options)
{
const size_t optionsLen = virStringListLength(options);
VIR_AUTOFREE(char *) inputCopy = NULL;
VIR_AUTOSTRINGLIST inputList = NULL;
VIR_AUTOSTRINGLIST ret = NULL;
size_t nret = 0;
size_t i;
if (STREQ_NULLABLE(input, " "))
input = NULL;
if (input) {
char *comma = NULL;
if (VIR_STRDUP(inputCopy, input) < 0)
return NULL;
if ((comma = strrchr(inputCopy, ',')))
*comma = '\0';
else
VIR_FREE(inputCopy);
}
if (inputCopy && !(inputList = virStringSplit(inputCopy, ",", 0)))
return NULL;
if (VIR_ALLOC_N(ret, optionsLen + 1) < 0)
return NULL;
for (i = 0; i < optionsLen; i++) {
if (virStringListHasString((const char **)inputList, options[i]))
continue;
if ((inputCopy && virAsprintf(&ret[nret], "%s,%s", inputCopy, options[i]) < 0) ||
(!inputCopy && VIR_STRDUP(ret[nret], options[i]) < 0))
return NULL;
nret++;
}
VIR_RETURN_PTR(ret);
}
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 **
virshStoragePoolNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virStoragePoolPtr *pools = NULL;
int npools = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE |
VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE |
VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((npools = virConnectListAllStoragePools(priv->conn, &pools, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, npools + 1) < 0)
goto cleanup;
for (i = 0; i < npools; i++) {
const char *name = virStoragePoolGetName(pools[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < npools; i++)
virStoragePoolFree(pools[i]);
VIR_FREE(pools);
return ret;
}
char **
virshStorageVolNameCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virStoragePoolPtr pool = NULL;
virStorageVolPtr *vols = NULL;
int rc;
int nvols = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(pool = virshCommandOptPool(ctl, cmd, "pool", NULL)))
return NULL;
if ((rc = virStoragePoolListAllVolumes(pool, &vols, flags)) < 0)
goto cleanup;
nvols = rc;
if (VIR_ALLOC_N(tmp, nvols + 1) < 0)
goto cleanup;
for (i = 0; i < nvols; i++) {
const char *name = virStorageVolGetName(vols[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
virStoragePoolFree(pool);
for (i = 0; i < nvols; i++)
virStorageVolFree(vols[i]);
VIR_FREE(vols);
return ret;
}
char **
virshInterfaceNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virInterfacePtr *ifaces = NULL;
int nifaces = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(VIR_CONNECT_LIST_INTERFACES_ACTIVE |
VIR_CONNECT_LIST_INTERFACES_INACTIVE,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((nifaces = virConnectListAllInterfaces(priv->conn, &ifaces, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, nifaces + 1) < 0)
goto cleanup;
for (i = 0; i < nifaces; i++) {
const char *name = virInterfaceGetName(ifaces[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < nifaces; i++)
virInterfaceFree(ifaces[i]);
VIR_FREE(ifaces);
return ret;
}
char **
virshNetworkNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virNetworkPtr *nets = NULL;
int nnets = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(VIR_CONNECT_LIST_NETWORKS_INACTIVE |
VIR_CONNECT_LIST_NETWORKS_ACTIVE |
VIR_CONNECT_LIST_NETWORKS_PERSISTENT,
NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((nnets = virConnectListAllNetworks(priv->conn, &nets, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, nnets + 1) < 0)
goto cleanup;
for (i = 0; i < nnets; i++) {
const char *name = virNetworkGetName(nets[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < nnets; i++)
virNetworkFree(nets[i]);
VIR_FREE(nets);
return ret;
}
char **
virshNetworkEventNameCompleter(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_NETWORK_EVENT_ID_LAST + 1) < 0)
goto cleanup;
for (i = 0; i < VIR_NETWORK_EVENT_ID_LAST; i++) {
if (VIR_STRDUP(tmp[i], virshNetworkEventCallbacks[i].name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
return ret;
}
char **
virshNetworkPortUUIDCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virNetworkPtr net = NULL;
virNetworkPortPtr *ports = NULL;
int nports = 0;
size_t i = 0;
char **ret = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(net = virshCommandOptNetwork(ctl, cmd, NULL)))
return false;
if ((nports = virNetworkListAllPorts(net, &ports, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(ret, nports + 1) < 0)
goto error;
for (i = 0; i < nports; i++) {
char uuid[VIR_UUID_STRING_BUFLEN];
if (virNetworkPortGetUUIDString(ports[i], uuid) < 0 ||
VIR_STRDUP(ret[i], uuid) < 0)
goto error;
virNetworkPortFree(ports[i]);
}
VIR_FREE(ports);
return ret;
error:
for (; i < nports; i++)
virNetworkPortFree(ports[i]);
VIR_FREE(ports);
for (i = 0; i < nports; i++)
VIR_FREE(ret[i]);
VIR_FREE(ret);
return NULL;
}
char **
virshNodeDeviceNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virNodeDevicePtr *devs = NULL;
int ndevs = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((ndevs = virConnectListAllNodeDevices(priv->conn, &devs, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, ndevs + 1) < 0)
goto cleanup;
for (i = 0; i < ndevs; i++) {
const char *name = virNodeDeviceGetName(devs[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < ndevs; i++)
virNodeDeviceFree(devs[i]);
VIR_FREE(devs);
return ret;
}
char **
virshNWFilterNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virNWFilterPtr *nwfilters = NULL;
int nnwfilters = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((nnwfilters = virConnectListAllNWFilters(priv->conn, &nwfilters, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, nnwfilters + 1) < 0)
goto cleanup;
for (i = 0; i < nnwfilters; i++) {
const char *name = virNWFilterGetName(nwfilters[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < nnwfilters; i++)
virNWFilterFree(nwfilters[i]);
VIR_FREE(nwfilters);
return ret;
}
char **
virshNWFilterBindingNameCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virNWFilterBindingPtr *bindings = NULL;
int nbindings = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((nbindings = virConnectListAllNWFilterBindings(priv->conn, &bindings, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, nbindings + 1) < 0)
goto cleanup;
for (i = 0; i < nbindings; i++) {
const char *name = virNWFilterBindingGetPortDev(bindings[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < nbindings; i++)
virNWFilterBindingFree(bindings[i]);
VIR_FREE(bindings);
return ret;
}
char **
virshSecretUUIDCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virSecretPtr *secrets = NULL;
int nsecrets = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if ((nsecrets = virConnectListAllSecrets(priv->conn, &secrets, flags)) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, nsecrets + 1) < 0)
goto cleanup;
for (i = 0; i < nsecrets; i++) {
char uuid[VIR_UUID_STRING_BUFLEN];
if (virSecretGetUUIDString(secrets[i], uuid) < 0 ||
VIR_STRDUP(tmp[i], uuid) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
for (i = 0; i < nsecrets; i++)
virSecretFree(secrets[i]);
VIR_FREE(secrets);
return ret;
}
char **
virshCheckpointNameCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virDomainPtr dom = NULL;
virDomainCheckpointPtr *checkpoints = NULL;
int ncheckpoints = 0;
size_t i = 0;
char **ret = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return NULL;
if ((ncheckpoints = virDomainListAllCheckpoints(dom, &checkpoints,
flags)) < 0)
goto error;
if (VIR_ALLOC_N(ret, ncheckpoints + 1) < 0)
goto error;
for (i = 0; i < ncheckpoints; i++) {
const char *name = virDomainCheckpointGetName(checkpoints[i]);
if (VIR_STRDUP(ret[i], name) < 0)
goto error;
virshDomainCheckpointFree(checkpoints[i]);
}
VIR_FREE(checkpoints);
virshDomainFree(dom);
return ret;
error:
for (; i < ncheckpoints; i++)
virshDomainCheckpointFree(checkpoints[i]);
VIR_FREE(checkpoints);
for (i = 0; i < ncheckpoints; i++)
VIR_FREE(ret[i]);
VIR_FREE(ret);
virshDomainFree(dom);
return NULL;
}
char **
virshSnapshotNameCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
virshControlPtr priv = ctl->privData;
virDomainPtr dom = NULL;
virDomainSnapshotPtr *snapshots = NULL;
int rc;
int nsnapshots = 0;
size_t i = 0;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return NULL;
if ((rc = virDomainListAllSnapshots(dom, &snapshots, flags)) < 0)
goto cleanup;
nsnapshots = rc;
if (VIR_ALLOC_N(tmp, nsnapshots + 1) < 0)
goto cleanup;
for (i = 0; i < nsnapshots; i++) {
const char *name = virDomainSnapshotGetName(snapshots[i]);
if (VIR_STRDUP(tmp[i], name) < 0)
goto cleanup;
}
VIR_STEAL_PTR(ret, tmp);
cleanup:
virshDomainFree(dom);
for (i = 0; i < nsnapshots; i++)
virshDomainSnapshotFree(snapshots[i]);
VIR_FREE(snapshots);
return ret;
}
static char *
virshPagesizeNodeToString(xmlNodePtr node)
{
VIR_AUTOFREE(char *) pagesize = NULL;
VIR_AUTOFREE(char *) unit = NULL;
unsigned long long byteval = 0;
const char *suffix = NULL;
double size = 0;
char *ret;
pagesize = virXMLPropString(node, "size");
unit = virXMLPropString(node, "unit");
if (virStrToLong_ull(pagesize, NULL, 10, &byteval) < 0)
return NULL;
if (virScaleInteger(&byteval, unit, 1024, UINT_MAX) < 0)
return NULL;
size = vshPrettyCapacity(byteval, &suffix);
if (virAsprintf(&ret, "%.0f%s", size, suffix) < 0)
return NULL;
return ret;
}
char **
virshAllocpagesPagesizeCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
virshControlPtr priv = ctl->privData;
unsigned int npages = 0;
VIR_AUTOFREE(xmlNodePtr *) pages = NULL;
VIR_AUTOPTR(xmlDoc) doc = NULL;
size_t i = 0;
const char *cellnum = NULL;
bool cellno = vshCommandOptBool(cmd, "cellno");
VIR_AUTOFREE(char *) path = NULL;
VIR_AUTOFREE(char *) cap_xml = NULL;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(cap_xml = virConnectGetCapabilities(priv->conn)))
return NULL;
if (!(doc = virXMLParseStringCtxt(cap_xml, _("capabilities"), &ctxt)))
return NULL;
if (cellno && vshCommandOptStringQuiet(ctl, cmd, "cellno", &cellnum) > 0) {
if (virAsprintf(&path,
"/capabilities/host/topology/cells/cell[@id=\"%s\"]/pages",
cellnum) < 0)
return NULL;
} else {
if (virAsprintf(&path, "/capabilities/host/cpu/pages") < 0)
return NULL;
}
npages = virXPathNodeSet(path, ctxt, &pages);
if (npages <= 0)
return NULL;
if (VIR_ALLOC_N(tmp, npages + 1) < 0)
return NULL;
for (i = 0; i < npages; i++) {
if (!(tmp[i] = virshPagesizeNodeToString(pages[i])))
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshSecretEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
size_t i;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (VIR_ALLOC_N(tmp, VIR_SECRET_EVENT_ID_LAST + 1) < 0)
return NULL;
for (i = 0; i < VIR_SECRET_EVENT_ID_LAST; i++) {
if (VIR_STRDUP(tmp[i], virshSecretEventCallbacks[i].name) < 0)
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 **
virshPoolEventNameCompleter(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_STORAGE_POOL_EVENT_ID_LAST + 1) < 0)
return NULL;
for (i = 0; i < VIR_STORAGE_POOL_EVENT_ID_LAST; i++) {
if (VIR_STRDUP(tmp[i], virshPoolEventCallbacks[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 **
virshNodedevEventNameCompleter(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_NODE_DEVICE_EVENT_ID_LAST + 1) < 0)
return NULL;
for (i = 0; i < VIR_NODE_DEVICE_EVENT_ID_LAST; i++) {
if (VIR_STRDUP(tmp[i], virshNodedevEventCallbacks[i].name) < 0)
return NULL;
}
VIR_STEAL_PTR(ret, tmp);
return ret;
}
char **
virshNodedevCapabilityNameCompleter(vshControl *ctl,
const vshCmd *cmd,
unsigned int flags)
{
VIR_AUTOSTRINGLIST tmp = NULL;
const char *cap_str = NULL;
size_t i = 0;
virCheckFlags(0, NULL);
if (vshCommandOptStringQuiet(ctl, cmd, "cap", &cap_str) < 0)
return NULL;
if (VIR_ALLOC_N(tmp, VIR_NODE_DEV_CAP_LAST + 1) < 0)
return NULL;
for (i = 0; i < VIR_NODE_DEV_CAP_LAST; i++) {
if (VIR_STRDUP(tmp[i], virNodeDevCapTypeToString(i)) < 0)
return NULL;
}
return virshCommaStringListComplete(cap_str, (const char **)tmp);
}
char **
virshCellnoCompleter(vshControl *ctl,
const vshCmd *cmd ATTRIBUTE_UNUSED,
unsigned int flags)
{
VIR_AUTOPTR(xmlXPathContext) ctxt = NULL;
virshControlPtr priv = ctl->privData;
unsigned int ncells = 0;
VIR_AUTOFREE(xmlNodePtr *) cells = NULL;
VIR_AUTOPTR(xmlDoc) doc = NULL;
size_t i = 0;
VIR_AUTOFREE(char *) cap_xml = NULL;
char **ret = NULL;
VIR_AUTOSTRINGLIST tmp = NULL;
virCheckFlags(0, NULL);
if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
return NULL;
if (!(cap_xml = virConnectGetCapabilities(priv->conn)))
return NULL;
if (!(doc = virXMLParseStringCtxt(cap_xml, _("capabilities"), &ctxt)))
return NULL;
ncells = virXPathNodeSet("/capabilities/host/topology/cells/cell", ctxt, &cells);
if (ncells <= 0)
return NULL;
if (VIR_ALLOC_N(tmp, ncells + 1))
return NULL;
for (i = 0; i < ncells; i++) {
if (!(tmp[i] = virXMLPropString(cells[i], "id")))
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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