qemu/include/qapi/qmp/dispatch.h
Markus Armbruster d2032598c4 qapi: Implement deprecated-input=reject for QMP commands
This policy rejects deprecated input, and thus permits "testing the
future".  Implement it for QMP commands: make deprecated ones fail.
Example: when QEMU is run with -compat deprecated-input=reject, then

    {"execute": "query-cpus"}

fails like this

    {"error": {"class": "CommandNotFound", "desc": "Deprecated command query-cpus disabled by policy"}}

When the deprecated command is removed, the error will change to

    {"error": {"class": "CommandNotFound", "desc": "The command query-cpus has not been found"}}

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-10-armbru@redhat.com>
2021-03-19 16:05:11 +01:00

68 lines
2.1 KiB
C

/*
* Core Definitions for QAPI/QMP Dispatch
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#ifndef QAPI_QMP_DISPATCH_H
#define QAPI_QMP_DISPATCH_H
#include "monitor/monitor.h"
#include "qemu/queue.h"
typedef void (QmpCommandFunc)(QDict *, QObject **, Error **);
typedef enum QmpCommandOptions
{
QCO_NO_OPTIONS = 0x0,
QCO_NO_SUCCESS_RESP = (1U << 0),
QCO_ALLOW_OOB = (1U << 1),
QCO_ALLOW_PRECONFIG = (1U << 2),
QCO_COROUTINE = (1U << 3),
QCO_DEPRECATED = (1U << 4),
} QmpCommandOptions;
typedef struct QmpCommand
{
const char *name;
/* Runs in coroutine context if QCO_COROUTINE is set */
QmpCommandFunc *fn;
QmpCommandOptions options;
QTAILQ_ENTRY(QmpCommand) node;
bool enabled;
const char *disable_reason;
} QmpCommand;
typedef QTAILQ_HEAD(QmpCommandList, QmpCommand) QmpCommandList;
void qmp_register_command(QmpCommandList *cmds, const char *name,
QmpCommandFunc *fn, QmpCommandOptions options);
const QmpCommand *qmp_find_command(const QmpCommandList *cmds,
const char *name);
void qmp_disable_command(QmpCommandList *cmds, const char *name,
const char *err_msg);
void qmp_enable_command(QmpCommandList *cmds, const char *name);
bool qmp_command_is_enabled(const QmpCommand *cmd);
bool qmp_command_available(const QmpCommand *cmd, Error **errp);
const char *qmp_command_name(const QmpCommand *cmd);
bool qmp_has_success_response(const QmpCommand *cmd);
QDict *qmp_error_response(Error *err);
QDict *qmp_dispatch(const QmpCommandList *cmds, QObject *request,
bool allow_oob, Monitor *cur_mon);
bool qmp_is_oob(const QDict *dict);
typedef void (*qmp_cmd_callback_fn)(const QmpCommand *cmd, void *opaque);
void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
void *opaque);
#endif