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libvirt/src/qemu/qemu_monitor_json.c
Wen Congyang 0ecfa7f2e1 check whether qemuMonitorJSONHMP() failed 
If qemu quited unexpectedly when we call qemuMonitorJSONHMP(),
libvirt will crash.
Steps to reproduce this bug:
1. use gdb to attach libvirtd, and set a breakpoint in the function
   qemuMonitorSetCapabilities()
2. start a vm
3. let the libvirtd to run until qemuMonitorJSONSetCapabilities() returns.
4. kill the qemu process
5. continue running libvirtd

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
2011-03-30 16:32:22 +08:00

2516 lines
74 KiB
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/*
* qemu_monitor_json.c: interaction with QEMU monitor console
*
* Copyright (C) 2006-2011 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <poll.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
#include "qemu_monitor_text.h"
#include "qemu_monitor_json.h"
#include "qemu_command.h"
#include "memory.h"
#include "logging.h"
#include "driver.h"
#include "datatypes.h"
#include "virterror_internal.h"
#include "json.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
#define LINE_ENDING "\r\n"
static void qemuMonitorJSONHandleShutdown(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleReset(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandlePowerdown(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleStop(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleRTCChange(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleWatchdog(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleIOError(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleVNCConnect(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleVNCInitialize(qemuMonitorPtr mon, virJSONValuePtr data);
static void qemuMonitorJSONHandleVNCDisconnect(qemuMonitorPtr mon, virJSONValuePtr data);
struct {
const char *type;
void (*handler)(qemuMonitorPtr mon, virJSONValuePtr data);
} eventHandlers[] = {
{ "SHUTDOWN", qemuMonitorJSONHandleShutdown, },
{ "RESET", qemuMonitorJSONHandleReset, },
{ "POWERDOWN", qemuMonitorJSONHandlePowerdown, },
{ "STOP", qemuMonitorJSONHandleStop, },
{ "RTC_CHANGE", qemuMonitorJSONHandleRTCChange, },
{ "WATCHDOG", qemuMonitorJSONHandleWatchdog, },
{ "BLOCK_IO_ERROR", qemuMonitorJSONHandleIOError, },
{ "VNC_CONNECTED", qemuMonitorJSONHandleVNCConnect, },
{ "VNC_INITIALIZED", qemuMonitorJSONHandleVNCInitialize, },
{ "VNC_DISCONNECTED", qemuMonitorJSONHandleVNCDisconnect, },
};
static int
qemuMonitorJSONIOProcessEvent(qemuMonitorPtr mon,
virJSONValuePtr obj)
{
const char *type;
int i;
VIR_DEBUG("mon=%p obj=%p", mon, obj);
type = virJSONValueObjectGetString(obj, "event");
if (!type) {
VIR_WARN0("missing event type in message");
errno = EINVAL;
return -1;
}
for (i = 0 ; i < ARRAY_CARDINALITY(eventHandlers) ; i++) {
if (STREQ(eventHandlers[i].type, type)) {
virJSONValuePtr data = virJSONValueObjectGet(obj, "data");
VIR_DEBUG("handle %s handler=%p data=%p", type,
eventHandlers[i].handler, data);
(eventHandlers[i].handler)(mon, data);
break;
}
}
return 0;
}
static int
qemuMonitorJSONIOProcessLine(qemuMonitorPtr mon,
const char *line,
qemuMonitorMessagePtr msg)
{
virJSONValuePtr obj = NULL;
int ret = -1;
VIR_DEBUG("Line [%s]", line);
if (!(obj = virJSONValueFromString(line))) {
VIR_DEBUG0("Parsing JSON string failed");
errno = EINVAL;
goto cleanup;
}
if (obj->type != VIR_JSON_TYPE_OBJECT) {
VIR_DEBUG0("Parsed JSON string isn't an object");
errno = EINVAL;
}
if (virJSONValueObjectHasKey(obj, "QMP") == 1) {
VIR_DEBUG0("Got QMP capabilities data");
ret = 0;
goto cleanup;
}
if (virJSONValueObjectHasKey(obj, "event") == 1) {
ret = qemuMonitorJSONIOProcessEvent(mon, obj);
goto cleanup;
}
if (msg) {
if (!(msg->rxBuffer = strdup(line))) {
errno = ENOMEM;
goto cleanup;
}
msg->rxLength = strlen(line);
msg->finished = 1;
} else {
VIR_DEBUG("Ignoring unexpected JSON message [%s]", line);
}
ret = 0;
cleanup:
virJSONValueFree(obj);
return ret;
}
int qemuMonitorJSONIOProcess(qemuMonitorPtr mon,
const char *data,
size_t len,
qemuMonitorMessagePtr msg)
{
int used = 0;
/*VIR_DEBUG("Data %d bytes [%s]", len, data);*/
while (used < len) {
char *nl = strstr(data + used, LINE_ENDING);
if (nl) {
int got = nl - (data + used);
char *line = strndup(data + used, got);
if (!line) {
errno = ENOMEM;
return -1;
}
used += got + strlen(LINE_ENDING);
line[got] = '\0'; /* kill \n */
if (qemuMonitorJSONIOProcessLine(mon, line, msg) < 0) {
VIR_FREE(line);
return -1;
}
VIR_FREE(line);
} else {
break;
}
}
VIR_DEBUG("Total used %d bytes out of %zd available in buffer", used, len);
return used;
}
static int
qemuMonitorJSONCommandWithFd(qemuMonitorPtr mon,
virJSONValuePtr cmd,
int scm_fd,
virJSONValuePtr *reply)
{
int ret = -1;
qemuMonitorMessage msg;
char *cmdstr = NULL;
*reply = NULL;
memset(&msg, 0, sizeof msg);
if (!(cmdstr = virJSONValueToString(cmd))) {
virReportOOMError();
goto cleanup;
}
if (virAsprintf(&msg.txBuffer, "%s\r\n", cmdstr) < 0) {
virReportOOMError();
goto cleanup;
}
msg.txLength = strlen(msg.txBuffer);
msg.txFD = scm_fd;
VIR_DEBUG("Send command '%s' for write with FD %d", cmdstr, scm_fd);
ret = qemuMonitorSend(mon, &msg);
VIR_DEBUG("Receive command reply ret=%d errno=%d %d bytes '%s'",
ret, msg.lastErrno, msg.rxLength, msg.rxBuffer);
/* If we got ret==0, but not reply data something rather bad
* went wrong, so lets fake an EIO error */
if (!msg.rxBuffer && ret == 0) {
msg.lastErrno = EIO;
ret = -1;
}
if (ret == 0) {
if (!((*reply) = virJSONValueFromString(msg.rxBuffer))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse JSON doc '%s'"), msg.rxBuffer);
goto cleanup;
}
}
if (ret < 0)
virReportSystemError(msg.lastErrno,
_("cannot send monitor command '%s'"), cmdstr);
cleanup:
VIR_FREE(cmdstr);
VIR_FREE(msg.txBuffer);
VIR_FREE(msg.rxBuffer);
return ret;
}
static int
qemuMonitorJSONCommand(qemuMonitorPtr mon,
virJSONValuePtr cmd,
virJSONValuePtr *reply) {
return qemuMonitorJSONCommandWithFd(mon, cmd, -1, reply);
}
/* Ignoring OOM in this method, since we're already reporting
* a more important error
*
* XXX see qerror.h for different klasses & fill out useful params
*/
static const char *
qemuMonitorJSONStringifyError(virJSONValuePtr error)
{
const char *klass = virJSONValueObjectGetString(error, "class");
const char *detail = NULL;
/* The QMP 'desc' field is usually sufficient for our generic
* error reporting needs.
*/
if (klass)
detail = virJSONValueObjectGetString(error, "desc");
if (!detail)
detail = "unknown QEMU command error";
return detail;
}
static const char *
qemuMonitorJSONCommandName(virJSONValuePtr cmd)
{
const char *name = virJSONValueObjectGetString(cmd, "execute");
if (name)
return name;
else
return "<unknown>";
}
static int
qemuMonitorJSONCheckError(virJSONValuePtr cmd,
virJSONValuePtr reply)
{
if (virJSONValueObjectHasKey(reply, "error")) {
virJSONValuePtr error = virJSONValueObjectGet(reply, "error");
char *cmdstr = virJSONValueToString(cmd);
char *replystr = virJSONValueToString(reply);
/* Log the full JSON formatted command & error */
VIR_DEBUG("unable to execute QEMU command %s: %s",
cmdstr, replystr);
/* Only send the user the command name + friendly error */
if (!error)
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to execute QEMU command '%s'"),
qemuMonitorJSONCommandName(cmd));
else
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to execute QEMU command '%s': %s"),
qemuMonitorJSONCommandName(cmd),
qemuMonitorJSONStringifyError(error));
VIR_FREE(cmdstr);
VIR_FREE(replystr);
return -1;
} else if (!virJSONValueObjectHasKey(reply, "return")) {
char *cmdstr = virJSONValueToString(cmd);
char *replystr = virJSONValueToString(reply);
VIR_DEBUG("Neither 'return' nor 'error' is set in the JSON reply %s: %s",
cmdstr, replystr);
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to execute QEMU command '%s'"),
qemuMonitorJSONCommandName(cmd));
VIR_FREE(cmdstr);
VIR_FREE(replystr);
return -1;
}
return 0;
}
static int
qemuMonitorJSONHasError(virJSONValuePtr reply,
const char *klass)
{
virJSONValuePtr error;
const char *thisklass;
if (!virJSONValueObjectHasKey(reply, "error"))
return 0;
error = virJSONValueObjectGet(reply, "error");
if (!error)
return 0;
if (!virJSONValueObjectHasKey(error, "class"))
return 0;
thisklass = virJSONValueObjectGetString(error, "class");
if (!thisklass)
return 0;
return STREQ(klass, thisklass);
}
static virJSONValuePtr ATTRIBUTE_SENTINEL
qemuMonitorJSONMakeCommand(const char *cmdname,
...)
{
virJSONValuePtr obj;
virJSONValuePtr jargs = NULL;
va_list args;
char *key;
va_start(args, cmdname);
if (!(obj = virJSONValueNewObject()))
goto no_memory;
if (virJSONValueObjectAppendString(obj, "execute", cmdname) < 0)
goto no_memory;
while ((key = va_arg(args, char *)) != NULL) {
int ret;
char type;
if (strlen(key) < 3) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("argument key '%s' is too short, missing type prefix"),
key);
goto error;
}
/* Keys look like s:name the first letter is a type code */
type = key[0];
key += 2;
if (!jargs &&
!(jargs = virJSONValueNewObject()))
goto no_memory;
/* This doesn't supports maps/arrays. This hasn't
* proved to be a problem..... yet :-) */
switch (type) {
case 's': {
char *val = va_arg(args, char *);
ret = virJSONValueObjectAppendString(jargs, key, val);
} break;
case 'i': {
int val = va_arg(args, int);
ret = virJSONValueObjectAppendNumberInt(jargs, key, val);
} break;
case 'u': {
unsigned int val = va_arg(args, unsigned int);
ret = virJSONValueObjectAppendNumberUint(jargs, key, val);
} break;
case 'I': {
long long val = va_arg(args, long long);
ret = virJSONValueObjectAppendNumberLong(jargs, key, val);
} break;
case 'U': {
unsigned long long val = va_arg(args, unsigned long long);
ret = virJSONValueObjectAppendNumberUlong(jargs, key, val);
} break;
case 'd': {
double val = va_arg(args, double);
ret = virJSONValueObjectAppendNumberDouble(jargs, key, val);
} break;
case 'b': {
int val = va_arg(args, int);
ret = virJSONValueObjectAppendBoolean(jargs, key, val);
} break;
case 'n': {
ret = virJSONValueObjectAppendNull(jargs, key);
} break;
default:
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported data type '%c' for arg '%s'"), type, key - 2);
goto error;
}
if (ret < 0)
goto no_memory;
}
if (jargs &&
virJSONValueObjectAppend(obj, "arguments", jargs) < 0)
goto no_memory;
va_end(args);
return obj;
no_memory:
virReportOOMError();
error:
virJSONValueFree(obj);
virJSONValueFree(jargs);
va_end(args);
return NULL;
}
static void
qemuFreeKeywords(int nkeywords, char **keywords, char **values)
{
int i;
for (i = 0 ; i < nkeywords ; i++) {
VIR_FREE(keywords[i]);
VIR_FREE(values[i]);
}
VIR_FREE(keywords);
VIR_FREE(values);
}
static virJSONValuePtr
qemuMonitorJSONKeywordStringToJSON(const char *str, const char *firstkeyword)
{
virJSONValuePtr ret = NULL;
char **keywords = NULL;
char **values = NULL;
int nkeywords = 0;
int i;
if (!(ret = virJSONValueNewObject()))
goto no_memory;
nkeywords = qemuParseKeywords(str, &keywords, &values, 1);
if (nkeywords < 0)
goto error;
for (i = 0 ; i < nkeywords ; i++) {
if (values[i] == NULL) {
if (i != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected empty keyword in %s"), str);
goto error;
} else {
/* This 3rd arg isn't a typo - the way the parser works is
* that the value ended up in the keyword field */
if (virJSONValueObjectAppendString(ret, firstkeyword, keywords[i]) < 0)
goto no_memory;
}
} else {
if (virJSONValueObjectAppendString(ret, keywords[i], values[i]) < 0)
goto no_memory;
}
}
qemuFreeKeywords(nkeywords, keywords, values);
return ret;
no_memory:
virReportOOMError();
error:
qemuFreeKeywords(nkeywords, keywords, values);
virJSONValueFree(ret);
return NULL;
}
static void qemuMonitorJSONHandleShutdown(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
{
qemuMonitorEmitShutdown(mon);
}
static void qemuMonitorJSONHandleReset(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
{
qemuMonitorEmitReset(mon);
}
static void qemuMonitorJSONHandlePowerdown(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
{
qemuMonitorEmitPowerdown(mon);
}
static void qemuMonitorJSONHandleStop(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
{
qemuMonitorEmitStop(mon);
}
static void qemuMonitorJSONHandleRTCChange(qemuMonitorPtr mon, virJSONValuePtr data)
{
long long offset = 0;
if (virJSONValueObjectGetNumberLong(data, "offset", &offset) < 0) {
VIR_WARN0("missing offset in RTC change event");
offset = 0;
}
qemuMonitorEmitRTCChange(mon, offset);
}
VIR_ENUM_DECL(qemuMonitorWatchdogAction)
VIR_ENUM_IMPL(qemuMonitorWatchdogAction, VIR_DOMAIN_EVENT_WATCHDOG_DEBUG + 1,
"none", "pause", "reset", "poweroff", "shutdown", "debug");
static void qemuMonitorJSONHandleWatchdog(qemuMonitorPtr mon, virJSONValuePtr data)
{
const char *action;
int actionID;
if (!(action = virJSONValueObjectGetString(data, "action"))) {
VIR_WARN0("missing action in watchdog event");
}
if (action) {
if ((actionID = qemuMonitorWatchdogActionTypeFromString(action)) < 0) {
VIR_WARN("unknown action %s in watchdog event", action);
actionID = VIR_DOMAIN_EVENT_WATCHDOG_NONE;
}
} else {
actionID = VIR_DOMAIN_EVENT_WATCHDOG_NONE;
}
qemuMonitorEmitWatchdog(mon, actionID);
}
VIR_ENUM_DECL(qemuMonitorIOErrorAction)
VIR_ENUM_IMPL(qemuMonitorIOErrorAction, VIR_DOMAIN_EVENT_IO_ERROR_REPORT + 1,
"ignore", "stop", "report");
static void qemuMonitorJSONHandleIOError(qemuMonitorPtr mon, virJSONValuePtr data)
{
const char *device;
const char *action;
const char *reason;
int actionID;
/* Throughout here we try our best to carry on upon errors,
since it's imporatant to get as much info as possible out
to the application */
if ((action = virJSONValueObjectGetString(data, "action")) == NULL) {
VIR_WARN0("Missing action in disk io error event");
action = "ignore";
}
if ((device = virJSONValueObjectGetString(data, "device")) == NULL) {
VIR_WARN0("missing device in disk io error event");
}
#if 0
if ((reason = virJSONValueObjectGetString(data, "reason")) == NULL) {
VIR_WARN0("missing reason in disk io error event");
reason = "";
}
#else
reason = "";
#endif
if ((actionID = qemuMonitorIOErrorActionTypeFromString(action)) < 0) {
VIR_WARN("unknown disk io error action '%s'", action);
actionID = VIR_DOMAIN_EVENT_IO_ERROR_NONE;
}
qemuMonitorEmitIOError(mon, device, actionID, reason);
}
VIR_ENUM_DECL(qemuMonitorGraphicsAddressFamily)
VIR_ENUM_IMPL(qemuMonitorGraphicsAddressFamily, VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV6 + 1,
"ipv4", "ipv6");
static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, int phase)
{
const char *localNode, *localService, *localFamily;
const char *remoteNode, *remoteService, *remoteFamily;
const char *authScheme, *saslUsername, *x509dname;
int localFamilyID, remoteFamilyID;
virJSONValuePtr client;
virJSONValuePtr server;
if (!(client = virJSONValueObjectGet(data, "client"))) {
VIR_WARN0("missing client info in VNC event");
return;
}
if (!(server = virJSONValueObjectGet(data, "server"))) {
VIR_WARN0("missing server info in VNC event");
return;
}
authScheme = virJSONValueObjectGetString(server, "auth");
localFamily = virJSONValueObjectGetString(server, "family");
localNode = virJSONValueObjectGetString(server, "host");
localService = virJSONValueObjectGetString(server, "service");
remoteFamily = virJSONValueObjectGetString(client, "family");
remoteNode = virJSONValueObjectGetString(client, "host");
remoteService = virJSONValueObjectGetString(client, "service");
saslUsername = virJSONValueObjectGetString(client, "sasl_username");
x509dname = virJSONValueObjectGetString(client, "x509_dname");
if ((localFamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(localFamily)) < 0) {
VIR_WARN("unknown address family '%s'", localFamily);
localFamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4;
}
if ((remoteFamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(remoteFamily)) < 0) {
VIR_WARN("unknown address family '%s'", remoteFamily);
remoteFamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4;
}
qemuMonitorEmitGraphics(mon, phase,
localFamilyID, localNode, localService,
remoteFamilyID, remoteNode, remoteService,
authScheme, x509dname, saslUsername);
}
static void qemuMonitorJSONHandleVNCConnect(qemuMonitorPtr mon, virJSONValuePtr data)
{
qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT);
}
static void qemuMonitorJSONHandleVNCInitialize(qemuMonitorPtr mon, virJSONValuePtr data)
{
qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE);
}
static void qemuMonitorJSONHandleVNCDisconnect(qemuMonitorPtr mon, virJSONValuePtr data)
{
qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT);
}
int
qemuMonitorJSONHumanCommandWithFd(qemuMonitorPtr mon,
const char *cmd_str,
int scm_fd,
char **reply_str)
{
virJSONValuePtr cmd = NULL;
virJSONValuePtr reply = NULL;
virJSONValuePtr obj;
int ret = -1;
cmd = qemuMonitorJSONMakeCommand("human-monitor-command",
"s:command-line", cmd_str,
NULL);
if (!cmd || qemuMonitorJSONCommandWithFd(mon, cmd, scm_fd, &reply) < 0)
goto cleanup;
if (qemuMonitorJSONCheckError(cmd, reply))
goto cleanup;
if (!(obj = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("human monitor command was missing return data"));
goto cleanup;
}
if (reply_str) {
const char *data;
if ((data = virJSONValueGetString(obj)))
*reply_str = strdup(data);
else
*reply_str = strdup("");
if (!*reply_str) {
virReportOOMError();
goto cleanup;
}
}
ret = 0;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int
qemuMonitorJSONSetCapabilities(qemuMonitorPtr mon)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("qmp_capabilities", NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* Returns: 0 if human-monitor-command is not supported, +1 if
* human-monitor-command worked or -1 on failure
*/
int
qemuMonitorJSONCheckHMP(qemuMonitorPtr mon)
{
int ret = -1;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-commands", NULL);
virJSONValuePtr reply = NULL;
virJSONValuePtr data;
int i, n;
if (!cmd)
return ret;
if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0 ||
qemuMonitorJSONCheckError(cmd, reply) < 0)
goto cleanup;
if (!(data = virJSONValueObjectGet(reply, "return")) ||
data->type != VIR_JSON_TYPE_ARRAY ||
(n = virJSONValueArraySize(data)) <= 0)
goto cleanup;
for (i = 0; i < n; i++) {
virJSONValuePtr entry;
const char *name;
if (!(entry = virJSONValueArrayGet(data, i)) ||
!(name = virJSONValueObjectGetString(entry, "name")))
goto cleanup;
if (STREQ(name, "human-monitor-command")) {
ret = 1;
goto cleanup;
}
}
/* human-monitor-command is not supported */
ret = 0;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int
qemuMonitorJSONStartCPUs(qemuMonitorPtr mon,
virConnectPtr conn ATTRIBUTE_UNUSED)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("cont", NULL);
virJSONValuePtr reply = NULL;
int i = 0, timeout = 3;
if (!cmd)
return -1;
do {
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret != 0)
break;
/* If no error, we're done */
if ((ret = qemuMonitorJSONCheckError(cmd, reply)) == 0)
break;
/* If error class is not MigrationExpected, we're done.
* Otherwise try 'cont' cmd again */
if (!qemuMonitorJSONHasError(reply, "MigrationExpected"))
break;
virJSONValueFree(reply);
reply = NULL;
usleep(250000);
} while (++i <= timeout);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int
qemuMonitorJSONStopCPUs(qemuMonitorPtr mon)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("stop", NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONSystemPowerdown(qemuMonitorPtr mon)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("system_powerdown", NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* [ { "CPU": 0, "current": true, "halted": false, "pc": 3227107138 },
* { "CPU": 1, "current": false, "halted": true, "pc": 7108165 } ]
*/
static int
qemuMonitorJSONExtractCPUInfo(virJSONValuePtr reply,
int **pids)
{
virJSONValuePtr data;
int ret = -1;
int i;
int *threads = NULL;
int ncpus;
if (!(data = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cpu reply was missing return data"));
goto cleanup;
}
if (data->type != VIR_JSON_TYPE_ARRAY) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cpu information was not an array"));
goto cleanup;
}
if ((ncpus = virJSONValueArraySize(data)) <= 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cpu information was empty"));
goto cleanup;
}
if (VIR_REALLOC_N(threads, ncpus) < 0) {
virReportOOMError();
goto cleanup;
}
for (i = 0 ; i < ncpus ; i++) {
virJSONValuePtr entry = virJSONValueArrayGet(data, i);
int cpu;
int thread;
if (!entry) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device information was missing aray element"));
goto cleanup;
}
if (virJSONValueObjectGetNumberInt(entry, "CPU", &cpu) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cpu information was missing cpu number"));
goto cleanup;
}
if (virJSONValueObjectGetNumberInt(entry, "thread_id", &thread) < 0) {
/* Only qemu-kvm tree includs thread_id, so treat this as
non-fatal, simply returning no data */
ret = 0;
goto cleanup;
}
if (cpu != i) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected cpu index %d expecting %d"),
i, cpu);
goto cleanup;
}
threads[i] = thread;
}
*pids = threads;
threads = NULL;
ret = ncpus;
cleanup:
VIR_FREE(threads);
return ret;
}
int qemuMonitorJSONGetCPUInfo(qemuMonitorPtr mon,
int **pids)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-cpus",
NULL);
virJSONValuePtr reply = NULL;
*pids = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret == 0)
ret = qemuMonitorJSONExtractCPUInfo(reply, pids);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* Returns: 0 if balloon not supported, +1 if balloon query worked
* or -1 on failure
*/
int qemuMonitorJSONGetBalloonInfo(qemuMonitorPtr mon,
unsigned long *currmem)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-balloon",
NULL);
virJSONValuePtr reply = NULL;
*currmem = 0;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0) {
/* See if balloon soft-failed */
if (qemuMonitorJSONHasError(reply, "DeviceNotActive") ||
qemuMonitorJSONHasError(reply, "KVMMissingCap"))
goto cleanup;
/* See if any other fatal error occurred */
ret = qemuMonitorJSONCheckError(cmd, reply);
/* Success */
if (ret == 0) {
virJSONValuePtr data;
unsigned long long mem;
if (!(data = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing return data"));
ret = -1;
goto cleanup;
}
if (virJSONValueObjectGetNumberUlong(data, "actual", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon data"));
ret = -1;
goto cleanup;
}
*currmem = (mem/1024);
ret = 1;
}
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONGetMemoryStats(qemuMonitorPtr mon,
virDomainMemoryStatPtr stats,
unsigned int nr_stats)
{
int ret;
int got = 0;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-balloon",
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0) {
/* See if balloon soft-failed */
if (qemuMonitorJSONHasError(reply, "DeviceNotActive") ||
qemuMonitorJSONHasError(reply, "KVMMissingCap"))
goto cleanup;
/* See if any other fatal error occurred */
ret = qemuMonitorJSONCheckError(cmd, reply);
/* Success */
if (ret == 0) {
virJSONValuePtr data;
unsigned long long mem;
if (!(data = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing return data"));
ret = -1;
goto cleanup;
}
if (virJSONValueObjectHasKey(data, "mem_swapped_in") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "mem_swapped_in", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon mem_swapped_in"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_SWAP_IN;
stats[got].val = (mem/1024);
got++;
}
if (virJSONValueObjectHasKey(data, "mem_swapped_out") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "mem_swapped_out", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon mem_swapped_out"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_SWAP_OUT;
stats[got].val = (mem/1024);
got++;
}
if (virJSONValueObjectHasKey(data, "major_page_faults") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "major_page_faults", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon major_page_faults"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_MAJOR_FAULT;
stats[got].val = mem;
got++;
}
if (virJSONValueObjectHasKey(data, "minor_page_faults") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "minor_page_faults", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon minor_page_faults"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_MINOR_FAULT;
stats[got].val = mem;
got++;
}
if (virJSONValueObjectHasKey(data, "free_mem") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "free_mem", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon free_mem"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_UNUSED;
stats[got].val = (mem/1024);
got++;
}
if (virJSONValueObjectHasKey(data, "total_mem") && (got < nr_stats)) {
if (virJSONValueObjectGetNumberUlong(data, "total_mem", &mem) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info balloon reply was missing balloon total_mem"));
ret = -1;
goto cleanup;
}
stats[got].tag = VIR_DOMAIN_MEMORY_STAT_AVAILABLE;
stats[got].val = (mem/1024);
got++;
}
}
}
if (got > 0)
ret = got;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONGetBlockStatsInfo(qemuMonitorPtr mon,
const char *devname,
long long *rd_req,
long long *rd_bytes,
long long *wr_req,
long long *wr_bytes,
long long *errs)
{
int ret;
int i;
int found = 0;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-blockstats",
NULL);
virJSONValuePtr reply = NULL;
virJSONValuePtr devices;
*rd_req = *rd_bytes = *wr_req = *wr_bytes = *errs = 0;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret < 0)
goto cleanup;
ret = -1;
devices = virJSONValueObjectGet(reply, "return");
if (!devices || devices->type != VIR_JSON_TYPE_ARRAY) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats reply was missing device list"));
goto cleanup;
}
for (i = 0 ; i < virJSONValueArraySize(devices) ; i++) {
virJSONValuePtr dev = virJSONValueArrayGet(devices, i);
virJSONValuePtr stats;
const char *thisdev;
if (!dev || dev->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats device entry was not in expected format"));
goto cleanup;
}
if ((thisdev = virJSONValueObjectGetString(dev, "device")) == NULL) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats device entry was not in expected format"));
goto cleanup;
}
/* New QEMU has separate names for host & guest side of the disk
* and libvirt gives the host side a 'drive-' prefix. The passed
* in devname is the guest side though
*/
if (STRPREFIX(thisdev, QEMU_DRIVE_HOST_PREFIX))
thisdev += strlen(QEMU_DRIVE_HOST_PREFIX);
if (STRNEQ(thisdev, devname))
continue;
found = 1;
if ((stats = virJSONValueObjectGet(dev, "stats")) == NULL ||
stats->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats stats entry was not in expected format"));
goto cleanup;
}
if (virJSONValueObjectGetNumberLong(stats, "rd_bytes", rd_bytes) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot read %s statistic"),
"rd_bytes");
goto cleanup;
}
if (virJSONValueObjectGetNumberLong(stats, "rd_operations", rd_req) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot read %s statistic"),
"rd_operations");
goto cleanup;
}
if (virJSONValueObjectGetNumberLong(stats, "wr_bytes", wr_bytes) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot read %s statistic"),
"wr_bytes");
goto cleanup;
}
if (virJSONValueObjectGetNumberLong(stats, "wr_operations", wr_req) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot read %s statistic"),
"wr_operations");
goto cleanup;
}
}
if (!found) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find statistics for device '%s'"), devname);
goto cleanup;
}
ret = 0;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONGetBlockExtent(qemuMonitorPtr mon,
const char *devname,
unsigned long long *extent)
{
int ret = -1;
int i;
int found = 0;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-blockstats",
NULL);
virJSONValuePtr reply = NULL;
virJSONValuePtr devices;
*extent = 0;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret < 0)
goto cleanup;
ret = -1;
devices = virJSONValueObjectGet(reply, "return");
if (!devices || devices->type != VIR_JSON_TYPE_ARRAY) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats reply was missing device list"));
goto cleanup;
}
for (i = 0 ; i < virJSONValueArraySize(devices) ; i++) {
virJSONValuePtr dev = virJSONValueArrayGet(devices, i);
virJSONValuePtr stats;
virJSONValuePtr parent;
const char *thisdev;
if (!dev || dev->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats device entry was not in expected format"));
goto cleanup;
}
if ((thisdev = virJSONValueObjectGetString(dev, "device")) == NULL) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats device entry was not in expected format"));
goto cleanup;
}
/* New QEMU has separate names for host & guest side of the disk
* and libvirt gives the host side a 'drive-' prefix. The passed
* in devname is the guest side though
*/
if (STRPREFIX(thisdev, QEMU_DRIVE_HOST_PREFIX))
thisdev += strlen(QEMU_DRIVE_HOST_PREFIX);
if (STRNEQ(thisdev, devname))
continue;
found = 1;
if ((parent = virJSONValueObjectGet(dev, "parent")) == NULL ||
parent->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats parent entry was not in expected format"));
goto cleanup;
}
if ((stats = virJSONValueObjectGet(parent, "stats")) == NULL ||
stats->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("blockstats stats entry was not in expected format"));
goto cleanup;
}
if (virJSONValueObjectGetNumberUlong(stats, "wr_highest_offset", extent) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot read %s statistic"),
"wr_highest_offset");
goto cleanup;
}
}
if (!found) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find statistics for device '%s'"), devname);
goto cleanup;
}
ret = 0;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONSetVNCPassword(qemuMonitorPtr mon,
const char *password)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("change",
"s:device", "vnc",
"s:target", "password",
"s:arg", password,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/* Returns -1 on error, -2 if not supported */
int qemuMonitorJSONSetPassword(qemuMonitorPtr mon,
const char *protocol,
const char *password,
const char *action_if_connected)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("set_password",
"s:protocol", protocol,
"s:password", password,
"s:connected", action_if_connected,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0) {
if (qemuMonitorJSONHasError(reply, "CommandNotFound")) {
ret = -2;
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/* Returns -1 on error, -2 if not supported */
int qemuMonitorJSONExpirePassword(qemuMonitorPtr mon,
const char *protocol,
const char *expire_time)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("expire_password",
"s:protocol", protocol,
"s:time", expire_time,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0) {
if (qemuMonitorJSONHasError(reply, "CommandNotFound")) {
ret = -2;
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* Returns: 0 if balloon not supported, +1 if balloon adjust worked
* or -1 on failure
*/
int qemuMonitorJSONSetBalloon(qemuMonitorPtr mon,
unsigned long newmem)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("balloon",
"U:value", ((unsigned long long)newmem)*1024,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0) {
/* See if balloon soft-failed */
if (qemuMonitorJSONHasError(reply, "DeviceNotActive") ||
qemuMonitorJSONHasError(reply, "KVMMissingCap"))
goto cleanup;
/* See if any other fatal error occurred */
ret = qemuMonitorJSONCheckError(cmd, reply);
/* Real success */
if (ret == 0)
ret = 1;
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* Returns: 0 if CPU hotplug not supported, +1 if CPU hotplug worked
* or -1 on failure
*/
int qemuMonitorJSONSetCPU(qemuMonitorPtr mon,
int cpu, int online)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("cpu_set",
"U:cpu", (unsigned long long)cpu,
"s:state", online ? "online" : "offline",
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound") &&
qemuMonitorCheckHMP(mon, "cpu_set")) {
VIR_DEBUG0("cpu_set command not found, trying HMP");
ret = qemuMonitorTextSetCPU(mon, cpu, online);
goto cleanup;
}
if (ret == 0) {
/* XXX See if CPU soft-failed due to lack of ACPI */
#if 0
if (qemuMonitorJSONHasError(reply, "DeviceNotActive") ||
qemuMonitorJSONHasError(reply, "KVMMissingCap"))
goto cleanup;
#endif
/* See if any other fatal error occurred */
ret = qemuMonitorJSONCheckError(cmd, reply);
/* Real success */
if (ret == 0)
ret = 1;
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONEjectMedia(qemuMonitorPtr mon,
const char *devname,
bool force)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("eject",
"s:device", devname,
"b:force", force ? 1 : 0,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONChangeMedia(qemuMonitorPtr mon,
const char *devname,
const char *newmedia,
const char *format)
{
int ret;
virJSONValuePtr cmd;
if (format)
cmd = qemuMonitorJSONMakeCommand("change",
"s:device", devname,
"s:target", newmedia,
"s:arg", format,
NULL);
else
cmd = qemuMonitorJSONMakeCommand("change",
"s:device", devname,
"s:target", newmedia,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
static int qemuMonitorJSONSaveMemory(qemuMonitorPtr mon,
const char *cmdtype,
unsigned long long offset,
size_t length,
const char *path)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand(cmdtype,
"U:val", offset,
"u:size", length,
"s:filename", path,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONSaveVirtualMemory(qemuMonitorPtr mon,
unsigned long long offset,
size_t length,
const char *path)
{
return qemuMonitorJSONSaveMemory(mon, "memsave", offset, length, path);
}
int qemuMonitorJSONSavePhysicalMemory(qemuMonitorPtr mon,
unsigned long long offset,
size_t length,
const char *path)
{
return qemuMonitorJSONSaveMemory(mon, "pmemsave", offset, length, path);
}
int qemuMonitorJSONSetMigrationSpeed(qemuMonitorPtr mon,
unsigned long bandwidth)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("migrate_set_speed",
"U:value", bandwidth * 1024ULL * 1024ULL,
NULL);
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONSetMigrationDowntime(qemuMonitorPtr mon,
unsigned long long downtime)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("migrate_set_downtime",
"d:value", downtime / 1000.0,
NULL);
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
static int
qemuMonitorJSONGetMigrationStatusReply(virJSONValuePtr reply,
int *status,
unsigned long long *transferred,
unsigned long long *remaining,
unsigned long long *total)
{
virJSONValuePtr ret;
const char *statusstr;
if (!(ret = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info migration reply was missing return data"));
return -1;
}
if (!(statusstr = virJSONValueObjectGetString(ret, "status"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("info migration reply was missing return status"));
return -1;
}
if ((*status = qemuMonitorMigrationStatusTypeFromString(statusstr)) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected migration status in %s"), statusstr);
return -1;
}
if (*status == QEMU_MONITOR_MIGRATION_STATUS_ACTIVE) {
virJSONValuePtr ram = virJSONValueObjectGet(ret, "ram");
if (!ram) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("migration was active, but no RAM info was set"));
return -1;
}
if (virJSONValueObjectGetNumberUlong(ram, "transferred", transferred) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("migration was active, but RAM 'transferred' data was missing"));
return -1;
}
if (virJSONValueObjectGetNumberUlong(ram, "remaining", remaining) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("migration was active, but RAM 'remaining' data was missing"));
return -1;
}
if (virJSONValueObjectGetNumberUlong(ram, "total", total) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("migration was active, but RAM 'total' data was missing"));
return -1;
}
}
return 0;
}
int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon,
int *status,
unsigned long long *transferred,
unsigned long long *remaining,
unsigned long long *total)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-migrate",
NULL);
virJSONValuePtr reply = NULL;
*status = 0;
*transferred = *remaining = *total = 0;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret == 0 &&
qemuMonitorJSONGetMigrationStatusReply(reply,
status,
transferred,
remaining,
total) < 0)
ret = -1;
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONMigrate(qemuMonitorPtr mon,
unsigned int flags,
const char *uri)
{
int ret;
virJSONValuePtr cmd =
qemuMonitorJSONMakeCommand("migrate",
"b:detach", flags & QEMU_MONITOR_MIGRATE_BACKGROUND ? 1 : 0,
"b:blk", flags & QEMU_MONITOR_MIGRATE_NON_SHARED_DISK ? 1 : 0,
"b:inc", flags & QEMU_MONITOR_MIGRATE_NON_SHARED_INC ? 1 : 0,
"s:uri", uri,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONMigrateCancel(qemuMonitorPtr mon)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("migrate_cancel", NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAddUSBDisk(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
const char *path ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("usb_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONAddUSBDeviceExact(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
int bus ATTRIBUTE_UNUSED,
int dev ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("usb_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONAddUSBDeviceMatch(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
int vendor ATTRIBUTE_UNUSED,
int product ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("usb_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONAddPCIHostDevice(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *hostAddr ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *guestAddr ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pci_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONAddPCIDisk(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
const char *path ATTRIBUTE_UNUSED,
const char *bus ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *guestAddr ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pci_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONAddPCINetwork(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
const char *nicstr ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *guestAddr ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pci_add not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONRemovePCIDevice(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *guestAddr ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pci_del not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONSendFileHandle(qemuMonitorPtr mon,
const char *fdname,
int fd)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("getfd",
"s:fdname", fdname,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommandWithFd(mon, cmd, fd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONCloseFileHandle(qemuMonitorPtr mon,
const char *fdname)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("closefd",
"s:fdname", fdname,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAddHostNetwork(qemuMonitorPtr mon,
const char *netstr)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("host_net_add",
"s:device", netstr,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONRemoveHostNetwork(qemuMonitorPtr mon,
int vlan,
const char *netname)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("host_net_remove",
"i:vlan", vlan,
"s:device", netname,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAddNetdev(qemuMonitorPtr mon,
const char *netdevstr)
{
int ret = -1;
virJSONValuePtr cmd = NULL;
virJSONValuePtr reply = NULL;
virJSONValuePtr args = NULL;
cmd = qemuMonitorJSONMakeCommand("netdev_add", NULL);
if (!cmd)
return -1;
args = qemuMonitorJSONKeywordStringToJSON(netdevstr, "type");
if (!args)
goto cleanup;
if (virJSONValueObjectAppend(cmd, "arguments", args) < 0) {
virReportOOMError();
goto cleanup;
}
args = NULL; /* obj owns reference to args now */
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(args);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONRemoveNetdev(qemuMonitorPtr mon,
const char *alias)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("netdev_del",
"s:id", alias,
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
/*
* Example return data
*
* {"return": [
* {"filename": "stdio", "label": "monitor"},
* {"filename": "pty:/dev/pts/6", "label": "serial0"},
* {"filename": "pty:/dev/pts/7", "label": "parallel0"}
* ]}
*
*/
static int qemuMonitorJSONExtractPtyPaths(virJSONValuePtr reply,
virHashTablePtr paths)
{
virJSONValuePtr data;
int ret = -1;
int i;
if (!(data = virJSONValueObjectGet(reply, "return"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device reply was missing return data"));
goto cleanup;
}
if (data->type != VIR_JSON_TYPE_ARRAY) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device information was not an array"));
goto cleanup;
}
for (i = 0 ; i < virJSONValueArraySize(data) ; i++) {
virJSONValuePtr entry = virJSONValueArrayGet(data, i);
const char *type;
const char *id;
if (!entry) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device information was missing aray element"));
goto cleanup;
}
if (!(type = virJSONValueObjectGetString(entry, "filename"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device information was missing filename"));
goto cleanup;
}
if (!(id = virJSONValueObjectGetString(entry, "label"))) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("character device information was missing filename"));
goto cleanup;
}
if (STRPREFIX(type, "pty:")) {
char *path = strdup(type + strlen("pty:"));
if (!path) {
virReportOOMError();
goto cleanup;
}
if (virHashAddEntry(paths, id, path) < 0) {
qemuReportError(VIR_ERR_OPERATION_FAILED,
_("failed to save chardev path '%s'"), path);
VIR_FREE(path);
goto cleanup;
}
}
}
ret = 0;
cleanup:
return ret;
}
int qemuMonitorJSONGetPtyPaths(qemuMonitorPtr mon,
virHashTablePtr paths)
{
int ret;
virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-chardev",
NULL);
virJSONValuePtr reply = NULL;
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret == 0)
ret = qemuMonitorJSONExtractPtyPaths(reply, paths);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAttachPCIDiskController(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
const char *bus ATTRIBUTE_UNUSED,
virDomainDevicePCIAddress *guestAddr ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pci_add not suppported in JSON mode"));
return -1;
}
static int
qemuMonitorJSONGetGuestDriveAddress(virJSONValuePtr reply,
virDomainDeviceDriveAddress *driveAddr)
{
virJSONValuePtr addr;
addr = virJSONValueObjectGet(reply, "return");
if (!addr || addr->type != VIR_JSON_TYPE_OBJECT) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("drive_add reply was missing device address"));
return -1;
}
if (virJSONValueObjectGetNumberUint(addr, "bus", &driveAddr->bus) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("drive_add reply was missing device bus number"));
return -1;
}
if (virJSONValueObjectGetNumberUint(addr, "unit", &driveAddr->unit) < 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("drive_add reply was missing device unit number"));
return -1;
}
return 0;
}
int qemuMonitorJSONAttachDrive(qemuMonitorPtr mon,
const char *drivestr,
virDomainDevicePCIAddress* controllerAddr,
virDomainDeviceDriveAddress* driveAddr)
{
int ret;
virJSONValuePtr cmd = NULL;
virJSONValuePtr reply = NULL;
char *dev;
if (virAsprintf(&dev, "%.2x:%.2x.%.1x",
controllerAddr->bus, controllerAddr->slot, controllerAddr->function) < 0) {
virReportOOMError();
return -1;
}
cmd = qemuMonitorJSONMakeCommand("drive_add",
"s:pci_addr", dev,
"s:opts", drivestr,
NULL);
VIR_FREE(dev);
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
if (ret == 0 &&
qemuMonitorJSONGetGuestDriveAddress(reply, driveAddr) < 0)
ret = -1;
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONGetAllPCIAddresses(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
qemuMonitorPCIAddress **addrs ATTRIBUTE_UNUSED)
{
qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("query-pci not suppported in JSON mode"));
return -1;
}
int qemuMonitorJSONDelDevice(qemuMonitorPtr mon,
const char *devalias)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("device_del",
"s:id", devalias,
NULL);
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAddDevice(qemuMonitorPtr mon,
const char *devicestr)
{
int ret = -1;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
virJSONValuePtr args;
cmd = qemuMonitorJSONMakeCommand("device_add", NULL);
if (!cmd)
return -1;
args = qemuMonitorJSONKeywordStringToJSON(devicestr, "driver");
if (!args)
goto cleanup;
if (virJSONValueObjectAppend(cmd, "arguments", args) < 0) {
virReportOOMError();
goto cleanup;
}
args = NULL; /* obj owns reference to args now */
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(args);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONAddDrive(qemuMonitorPtr mon,
const char *drivestr)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("drive_add",
"s:pci_addr", "dummy",
"s:opts", drivestr,
NULL);
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply) < 0))
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound") &&
qemuMonitorCheckHMP(mon, "drive_add")) {
VIR_DEBUG0("drive_add command not found, trying HMP");
ret = qemuMonitorTextAddDrive(mon, drivestr);
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONDriveDel(qemuMonitorPtr mon,
const char *drivestr)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
VIR_DEBUG("JSONDriveDel drivestr=%s", drivestr);
cmd = qemuMonitorJSONMakeCommand("drive_del",
"s:id", drivestr,
NULL);
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound")) {
if (qemuMonitorCheckHMP(mon, "drive_del")) {
VIR_DEBUG0("drive_del command not found, trying HMP");
ret = qemuMonitorTextDriveDel(mon, drivestr);
} else {
VIR_ERROR0(_("deleting disk is not supported. "
"This may leak data if disk is reassigned"));
ret = 1;
}
} else if (qemuMonitorJSONHasError(reply, "DeviceNotFound")) {
/* NB: device not found errors mean the drive was
* auto-deleted and we ignore the error */
ret = 0;
} else {
ret = qemuMonitorJSONCheckError(cmd, reply);
}
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONSetDrivePassphrase(qemuMonitorPtr mon,
const char *alias,
const char *passphrase)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
char *drive;
if (virAsprintf(&drive, "%s%s", QEMU_DRIVE_HOST_PREFIX, alias) < 0) {
virReportOOMError();
return -1;
}
cmd = qemuMonitorJSONMakeCommand("block_passwd",
"s:device", drive,
"s:password", passphrase,
NULL);
VIR_FREE(drive);
if (!cmd)
return -1;
ret = qemuMonitorJSONCommand(mon, cmd, &reply);
if (ret == 0)
ret = qemuMonitorJSONCheckError(cmd, reply);
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONCreateSnapshot(qemuMonitorPtr mon, const char *name)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("savevm",
"s:name", name,
NULL);
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound") &&
qemuMonitorCheckHMP(mon, "savevm")) {
VIR_DEBUG0("savevm command not found, trying HMP");
ret = qemuMonitorTextCreateSnapshot(mon, name);
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONLoadSnapshot(qemuMonitorPtr mon, const char *name)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("loadvm",
"s:name", name,
NULL);
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound") &&
qemuMonitorCheckHMP(mon, "loadvm")) {
VIR_DEBUG0("loadvm command not found, trying HMP");
ret = qemuMonitorTextLoadSnapshot(mon, name);
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONDeleteSnapshot(qemuMonitorPtr mon, const char *name)
{
int ret;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
cmd = qemuMonitorJSONMakeCommand("delvm",
"s:name", name,
NULL);
if (!cmd)
return -1;
if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
goto cleanup;
if (qemuMonitorJSONHasError(reply, "CommandNotFound") &&
qemuMonitorCheckHMP(mon, "delvm")) {
VIR_DEBUG0("delvm command not found, trying HMP");
ret = qemuMonitorTextDeleteSnapshot(mon, name);
goto cleanup;
}
ret = qemuMonitorJSONCheckError(cmd, reply);
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
int qemuMonitorJSONArbitraryCommand(qemuMonitorPtr mon,
const char *cmd_str,
char **reply_str,
bool hmp)
{
virJSONValuePtr cmd = NULL;
virJSONValuePtr reply = NULL;
int ret = -1;
if (hmp) {
if (!qemuMonitorCheckHMP(mon, NULL)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("HMP passthrough is not supported by qemu"
" process; only QMP commands can be used"));
return -1;
}
return qemuMonitorJSONHumanCommandWithFd(mon, cmd_str, -1, reply_str);
} else {
if (!(cmd = virJSONValueFromString(cmd_str)))
goto cleanup;
if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
goto cleanup;
if (!(*reply_str = virJSONValueToString(reply)))
goto cleanup;
}
ret = 0;
cleanup:
virJSONValueFree(cmd);
virJSONValueFree(reply);
return ret;
}
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