qemu/qmp.c

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/*
* QEMU Management Protocol
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu-common.h"
#include "sysemu.h"
#include "qmp-commands.h"
#include "ui/qemu-spice.h"
#include "ui/vnc.h"
#include "kvm.h"
#include "arch_init.h"
#include "hw/qdev.h"
#include "qapi/qmp-input-visitor.h"
#include "qapi/qmp-output-visitor.h"
NameInfo *qmp_query_name(Error **errp)
{
NameInfo *info = g_malloc0(sizeof(*info));
if (qemu_name) {
info->has_name = true;
info->name = g_strdup(qemu_name);
}
return info;
}
VersionInfo *qmp_query_version(Error **err)
{
VersionInfo *info = g_malloc0(sizeof(*info));
const char *version = QEMU_VERSION;
char *tmp;
info->qemu.major = strtol(version, &tmp, 10);
tmp++;
info->qemu.minor = strtol(tmp, &tmp, 10);
tmp++;
info->qemu.micro = strtol(tmp, &tmp, 10);
info->package = g_strdup(QEMU_PKGVERSION);
return info;
}
KvmInfo *qmp_query_kvm(Error **errp)
{
KvmInfo *info = g_malloc0(sizeof(*info));
info->enabled = kvm_enabled();
info->present = kvm_available();
return info;
}
UuidInfo *qmp_query_uuid(Error **errp)
{
UuidInfo *info = g_malloc0(sizeof(*info));
char uuid[64];
snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
qemu_uuid[14], qemu_uuid[15]);
info->UUID = g_strdup(uuid);
return info;
}
void qmp_quit(Error **err)
{
no_shutdown = 0;
qemu_system_shutdown_request();
}
void qmp_stop(Error **errp)
{
vm_stop(RUN_STATE_PAUSED);
}
void qmp_system_reset(Error **errp)
{
qemu_system_reset_request();
}
void qmp_system_powerdown(Error **erp)
{
qemu_system_powerdown_request();
}
void qmp_cpu(int64_t index, Error **errp)
{
/* Just do nothing */
}
#ifndef CONFIG_VNC
/* If VNC support is enabled, the "true" query-vnc command is
defined in the VNC subsystem */
VncInfo *qmp_query_vnc(Error **errp)
{
error_set(errp, QERR_FEATURE_DISABLED, "vnc");
return NULL;
};
#endif
#ifndef CONFIG_SPICE
/* If SPICE support is enabled, the "true" query-spice command is
defined in the SPICE subsystem. Also note that we use a small
trick to maintain query-spice's original behavior, which is not
to be available in the namespace if SPICE is not compiled in */
SpiceInfo *qmp_query_spice(Error **errp)
{
error_set(errp, QERR_COMMAND_NOT_FOUND, "query-spice");
return NULL;
};
#endif
static void iostatus_bdrv_it(void *opaque, BlockDriverState *bs)
{
bdrv_iostatus_reset(bs);
}
static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
{
Error **err = opaque;
if (!error_is_set(err) && bdrv_key_required(bs)) {
error_set(err, QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
}
}
void qmp_cont(Error **errp)
{
Error *local_err = NULL;
if (runstate_check(RUN_STATE_INMIGRATE)) {
error_set(errp, QERR_MIGRATION_EXPECTED);
return;
} else if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
runstate_check(RUN_STATE_SHUTDOWN)) {
error_set(errp, QERR_RESET_REQUIRED);
return;
}
bdrv_iterate(iostatus_bdrv_it, NULL);
bdrv_iterate(encrypted_bdrv_it, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
vm_start();
}
DevicePropertyInfoList *qmp_qom_list(const char *path, Error **errp)
{
DeviceState *dev;
bool ambiguous = false;
DevicePropertyInfoList *props = NULL;
DeviceProperty *prop;
dev = qdev_resolve_path(path, &ambiguous);
if (dev == NULL) {
error_set(errp, QERR_DEVICE_NOT_FOUND, path);
return NULL;
}
QTAILQ_FOREACH(prop, &dev->properties, node) {
DevicePropertyInfoList *entry = g_malloc0(sizeof(*entry));
entry->value = g_malloc0(sizeof(DevicePropertyInfo));
entry->next = props;
props = entry;
entry->value->name = g_strdup(prop->name);
entry->value->type = g_strdup(prop->type);
}
return props;
}
/* FIXME: teach qapi about how to pass through Visitors */
int qmp_qom_set(Monitor *mon, const QDict *qdict, QObject **ret)
{
const char *path = qdict_get_str(qdict, "path");
const char *property = qdict_get_str(qdict, "property");
QObject *value = qdict_get(qdict, "value");
Error *local_err = NULL;
QmpInputVisitor *mi;
DeviceState *dev;
dev = qdev_resolve_path(path, NULL);
if (!dev) {
error_set(&local_err, QERR_DEVICE_NOT_FOUND, path);
goto out;
}
mi = qmp_input_visitor_new(value);
qdev_property_set(dev, qmp_input_get_visitor(mi), property, &local_err);
qmp_input_visitor_cleanup(mi);
out:
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
return 0;
}
int qmp_qom_get(Monitor *mon, const QDict *qdict, QObject **ret)
{
const char *path = qdict_get_str(qdict, "path");
const char *property = qdict_get_str(qdict, "property");
Error *local_err = NULL;
QmpOutputVisitor *mo;
DeviceState *dev;
dev = qdev_resolve_path(path, NULL);
if (!dev) {
error_set(&local_err, QERR_DEVICE_NOT_FOUND, path);
goto out;
}
mo = qmp_output_visitor_new();
qdev_property_get(dev, qmp_output_get_visitor(mo), property, &local_err);
if (!local_err) {
*ret = qmp_output_get_qobject(mo);
}
qmp_output_visitor_cleanup(mo);
out:
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
return 0;
}
void qmp_set_password(const char *protocol, const char *password,
bool has_connected, const char *connected, Error **errp)
{
int disconnect_if_connected = 0;
int fail_if_connected = 0;
int rc;
if (has_connected) {
if (strcmp(connected, "fail") == 0) {
fail_if_connected = 1;
} else if (strcmp(connected, "disconnect") == 0) {
disconnect_if_connected = 1;
} else if (strcmp(connected, "keep") == 0) {
/* nothing */
} else {
error_set(errp, QERR_INVALID_PARAMETER, "connected");
return;
}
}
if (strcmp(protocol, "spice") == 0) {
if (!using_spice) {
/* correct one? spice isn't a device ,,, */
error_set(errp, QERR_DEVICE_NOT_ACTIVE, "spice");
return;
}
rc = qemu_spice_set_passwd(password, fail_if_connected,
disconnect_if_connected);
if (rc != 0) {
error_set(errp, QERR_SET_PASSWD_FAILED);
}
return;
}
if (strcmp(protocol, "vnc") == 0) {
if (fail_if_connected || disconnect_if_connected) {
/* vnc supports "connected=keep" only */
error_set(errp, QERR_INVALID_PARAMETER, "connected");
return;
}
/* Note that setting an empty password will not disable login through
* this interface. */
rc = vnc_display_password(NULL, password);
if (rc < 0) {
error_set(errp, QERR_SET_PASSWD_FAILED);
}
return;
}
error_set(errp, QERR_INVALID_PARAMETER, "protocol");
}