mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-11-25 20:03:37 +08:00
Code Issues Packages Projects Releases Wiki Activity
8118f0950f
qemu/qmp.c
Markus Armbruster ad0ec14bad qmp: Clean up qmp_query_spice() #ifndef !CONFIG_SPICE dummy 
QMP command query-spice exists only #ifdef CONFIG_SPICE.  Due to QAPI
limitations, we need a dummy function anyway, but it's unreachable.

Our current dummy function goes out of its way to produce the exact
same error as the QMP core does for unknown commands.  Cute, but both
unclean and unnecessary.  Replace by straight abort().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2015-01-29 10:01:54 +01:00

735 lines
19 KiB
C
Raw Blame History

/*
* 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/sysemu.h"
#include "qmp-commands.h"
#include "sysemu/char.h"
#include "ui/qemu-spice.h"
#include "ui/vnc.h"
#include "sysemu/kvm.h"
#include "sysemu/arch_init.h"
#include "hw/qdev.h"
#include "sysemu/blockdev.h"
#include "qom/qom-qobject.h"
#include "qapi/qmp/qobject.h"
#include "qapi/qmp-input-visitor.h"
#include "hw/boards.h"
#include "qom/object_interfaces.h"
#include "hw/mem/pc-dimm.h"
#include "hw/acpi/acpi_dev_interface.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 **errp)
{
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 **errp)
{
no_shutdown = 0;
qemu_system_shutdown_request();
}
void qmp_stop(Error **errp)
{
if (runstate_check(RUN_STATE_INMIGRATE)) {
autostart = 0;
} else {
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 */
}
void qmp_cpu_add(int64_t id, Error **errp)
{
MachineClass *mc;
mc = MACHINE_GET_CLASS(current_machine);
if (mc->hot_add_cpu) {
mc->hot_add_cpu(id, errp);
} else {
error_setg(errp, "Not supported");
}
}
#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
/*
* qmp-commands.hx ensures that QMP command query-spice exists only
* #ifdef CONFIG_SPICE. Necessary for an accurate query-commands
* result. However, the QAPI schema is blissfully unaware of that,
* and the QAPI code generator happily generates a dead
* qmp_marshal_input_query_spice() that calls qmp_query_spice().
* Provide it one, or else linking fails.
* FIXME Educate the QAPI schema on CONFIG_SPICE.
*/
SpiceInfo *qmp_query_spice(Error **errp)
{
abort();
};
#endif
void qmp_cont(Error **errp)
{
BlockDriverState *bs;
if (runstate_needs_reset()) {
error_setg(errp, "Resetting the Virtual Machine is required");
return;
} else if (runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
bdrv_iostatus_reset(bs);
}
for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
if (bdrv_key_required(bs)) {
error_set(errp, QERR_DEVICE_ENCRYPTED,
bdrv_get_device_name(bs),
bdrv_get_encrypted_filename(bs));
return;
}
}
if (runstate_check(RUN_STATE_INMIGRATE)) {
autostart = 1;
} else {
vm_start();
}
}
void qmp_system_wakeup(Error **errp)
{
qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
}
ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
{
Object *obj;
bool ambiguous = false;
ObjectPropertyInfoList *props = NULL;
ObjectProperty *prop;
obj = object_resolve_path(path, &ambiguous);
if (obj == NULL) {
if (ambiguous) {
error_setg(errp, "Path '%s' is ambiguous", path);
} else {
error_set(errp, QERR_DEVICE_NOT_FOUND, path);
}
return NULL;
}
QTAILQ_FOREACH(prop, &obj->properties, node) {
ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
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;
Object *obj;
obj = object_resolve_path(path, NULL);
if (!obj) {
error_set(&local_err, QERR_DEVICE_NOT_FOUND, path);
goto out;
}
object_property_set_qobject(obj, value, property, &local_err);
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;
Object *obj;
obj = object_resolve_path(path, NULL);
if (!obj) {
error_set(&local_err, QERR_DEVICE_NOT_FOUND, path);
goto out;
}
*ret = object_property_get_qobject(obj, property, &local_err);
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 (!qemu_using_spice(errp)) {
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");
}
void qmp_expire_password(const char *protocol, const char *whenstr,
Error **errp)
{
time_t when;
int rc;
if (strcmp(whenstr, "now") == 0) {
when = 0;
} else if (strcmp(whenstr, "never") == 0) {
when = TIME_MAX;
} else if (whenstr[0] == '+') {
when = time(NULL) + strtoull(whenstr+1, NULL, 10);
} else {
when = strtoull(whenstr, NULL, 10);
}
if (strcmp(protocol, "spice") == 0) {
if (!qemu_using_spice(errp)) {
return;
}
rc = qemu_spice_set_pw_expire(when);
if (rc != 0) {
error_set(errp, QERR_SET_PASSWD_FAILED);
}
return;
}
if (strcmp(protocol, "vnc") == 0) {
rc = vnc_display_pw_expire(NULL, when);
if (rc != 0) {
error_set(errp, QERR_SET_PASSWD_FAILED);
}
return;
}
error_set(errp, QERR_INVALID_PARAMETER, "protocol");
}
#ifdef CONFIG_VNC
void qmp_change_vnc_password(const char *password, Error **errp)
{
if (vnc_display_password(NULL, password) < 0) {
error_set(errp, QERR_SET_PASSWD_FAILED);
}
}
static void qmp_change_vnc_listen(const char *target, Error **errp)
{
QemuOptsList *olist = qemu_find_opts("vnc");
QemuOpts *opts;
if (strstr(target, "id=")) {
error_setg(errp, "id not supported");
return;
}
opts = qemu_opts_find(olist, "default");
if (opts) {
qemu_opts_del(opts);
}
opts = vnc_parse_func(target);
vnc_display_open("default", errp);
}
static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
Error **errp)
{
if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
if (!has_arg) {
error_set(errp, QERR_MISSING_PARAMETER, "password");
} else {
qmp_change_vnc_password(arg, errp);
}
} else {
qmp_change_vnc_listen(target, errp);
}
}
#else
void qmp_change_vnc_password(const char *password, Error **errp)
{
error_set(errp, QERR_FEATURE_DISABLED, "vnc");
}
static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
Error **errp)
{
error_set(errp, QERR_FEATURE_DISABLED, "vnc");
}
#endif /* !CONFIG_VNC */
void qmp_change(const char *device, const char *target,
bool has_arg, const char *arg, Error **errp)
{
if (strcmp(device, "vnc") == 0) {
qmp_change_vnc(target, has_arg, arg, errp);
} else {
qmp_change_blockdev(device, target, arg, errp);
}
}
static void qom_list_types_tramp(ObjectClass *klass, void *data)
{
ObjectTypeInfoList *e, **pret = data;
ObjectTypeInfo *info;
info = g_malloc0(sizeof(*info));
info->name = g_strdup(object_class_get_name(klass));
e = g_malloc0(sizeof(*e));
e->value = info;
e->next = *pret;
*pret = e;
}
ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
const char *implements,
bool has_abstract,
bool abstract,
Error **errp)
{
ObjectTypeInfoList *ret = NULL;
object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
return ret;
}
/* Return a DevicePropertyInfo for a qdev property.
*
* If a qdev property with the given name does not exist, use the given default
* type. If the qdev property info should not be shown, return NULL.
*
* The caller must free the return value.
*/
static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
const char *name,
const char *default_type,
const char *description)
{
DevicePropertyInfo *info;
Property *prop;
do {
for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
if (strcmp(name, prop->name) != 0) {
continue;
}
/*
* TODO Properties without a parser are just for dirty hacks.
* qdev_prop_ptr is the only such PropertyInfo. It's marked
* for removal. This conditional should be removed along with
* it.
*/
if (!prop->info->set) {
return NULL; /* no way to set it, don't show */
}
info = g_malloc0(sizeof(*info));
info->name = g_strdup(prop->name);
info->type = g_strdup(prop->info->name);
info->has_description = !!prop->info->description;
info->description = g_strdup(prop->info->description);
return info;
}
klass = object_class_get_parent(klass);
} while (klass != object_class_by_name(TYPE_DEVICE));
/* Not a qdev property, use the default type */
info = g_malloc0(sizeof(*info));
info->name = g_strdup(name);
info->type = g_strdup(default_type);
info->has_description = !!description;
info->description = g_strdup(description);
return info;
}
DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
Error **errp)
{
ObjectClass *klass;
Object *obj;
ObjectProperty *prop;
DevicePropertyInfoList *prop_list = NULL;
klass = object_class_by_name(typename);
if (klass == NULL) {
error_set(errp, QERR_DEVICE_NOT_FOUND, typename);
return NULL;
}
klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
if (klass == NULL) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE,
"name", TYPE_DEVICE);
return NULL;
}
obj = object_new(typename);
QTAILQ_FOREACH(prop, &obj->properties, node) {
DevicePropertyInfo *info;
DevicePropertyInfoList *entry;
/* Skip Object and DeviceState properties */
if (strcmp(prop->name, "type") == 0 ||
strcmp(prop->name, "realized") == 0 ||
strcmp(prop->name, "hotpluggable") == 0 ||
strcmp(prop->name, "hotplugged") == 0 ||
strcmp(prop->name, "parent_bus") == 0) {
continue;
}
/* Skip legacy properties since they are just string versions of
* properties that we already list.
*/
if (strstart(prop->name, "legacy-", NULL)) {
continue;
}
info = make_device_property_info(klass, prop->name, prop->type,
prop->description);
if (!info) {
continue;
}
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = prop_list;
prop_list = entry;
}
object_unref(obj);
return prop_list;
}
CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
{
return arch_query_cpu_definitions(errp);
}
void qmp_add_client(const char *protocol, const char *fdname,
bool has_skipauth, bool skipauth, bool has_tls, bool tls,
Error **errp)
{
CharDriverState *s;
int fd;
fd = monitor_get_fd(cur_mon, fdname, errp);
if (fd < 0) {
return;
}
if (strcmp(protocol, "spice") == 0) {
if (!qemu_using_spice(errp)) {
close(fd);
return;
}
skipauth = has_skipauth ? skipauth : false;
tls = has_tls ? tls : false;
if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
error_setg(errp, "spice failed to add client");
close(fd);
}
return;
#ifdef CONFIG_VNC
} else if (strcmp(protocol, "vnc") == 0) {
skipauth = has_skipauth ? skipauth : false;
vnc_display_add_client(NULL, fd, skipauth);
return;
#endif
} else if ((s = qemu_chr_find(protocol)) != NULL) {
if (qemu_chr_add_client(s, fd) < 0) {
error_setg(errp, "failed to add client");
close(fd);
return;
}
return;
}
error_setg(errp, "protocol '%s' is invalid", protocol);
close(fd);
}
void object_add(const char *type, const char *id, const QDict *qdict,
Visitor *v, Error **errp)
{
Object *obj;
ObjectClass *klass;
const QDictEntry *e;
Error *local_err = NULL;
klass = object_class_by_name(type);
if (!klass) {
error_setg(errp, "invalid object type: %s", type);
return;
}
if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) {
error_setg(errp, "object type '%s' isn't supported by object-add",
type);
return;
}
if (object_class_is_abstract(klass)) {
error_setg(errp, "object type '%s' is abstract", type);
return;
}
obj = object_new(type);
if (qdict) {
for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
object_property_set(obj, v, e->key, &local_err);
if (local_err) {
goto out;
}
}
}
object_property_add_child(container_get(object_get_root(), "/objects"),
id, obj, &local_err);
if (local_err) {
goto out;
}
user_creatable_complete(obj, &local_err);
if (local_err) {
object_property_del(container_get(object_get_root(), "/objects"),
id, &error_abort);
goto out;
}
out:
if (local_err) {
error_propagate(errp, local_err);
}
object_unref(obj);
}
int qmp_object_add(Monitor *mon, const QDict *qdict, QObject **ret)
{
const char *type = qdict_get_str(qdict, "qom-type");
const char *id = qdict_get_str(qdict, "id");
QObject *props = qdict_get(qdict, "props");
const QDict *pdict = NULL;
Error *local_err = NULL;
QmpInputVisitor *qiv;
if (props) {
pdict = qobject_to_qdict(props);
if (!pdict) {
error_set(&local_err, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
goto out;
}
}
qiv = qmp_input_visitor_new(props);
object_add(type, id, pdict, qmp_input_get_visitor(qiv), &local_err);
qmp_input_visitor_cleanup(qiv);
out:
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
return 0;
}
void qmp_object_del(const char *id, Error **errp)
{
Object *container;
Object *obj;
container = container_get(object_get_root(), "/objects");
obj = object_resolve_path_component(container, id);
if (!obj) {
error_setg(errp, "object id not found");
return;
}
object_unparent(obj);
}
MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
{
MemoryDeviceInfoList *head = NULL;
MemoryDeviceInfoList **prev = &head;
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
return head;
}
ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
{
bool ambig;
ACPIOSTInfoList *head = NULL;
ACPIOSTInfoList **prev = &head;
Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
if (obj) {
AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
adevc->ospm_status(adev, &prev);
} else {
error_setg(errp, "command is not supported, missing ACPI device");
}
return head;
}
Reference in New Issue View Git Blame Copy Permalink