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qemu_monitor.c 113.6 KB
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/*
 * qemu_monitor.c: interaction with QEMU monitor console
 *
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 * Copyright (C) 2006-2014 Red Hat, Inc.
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 * 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
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 * License along with this library.  If not, see
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 * <http://www.gnu.org/licenses/>.
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 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

#include <config.h>

#include <poll.h>
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#include <sys/socket.h>
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#include <sys/un.h>
#include <unistd.h>
#include <fcntl.h>

#include "qemu_monitor.h"
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#include "qemu_monitor_text.h"
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#include "qemu_monitor_json.h"
35 36
#include "qemu_domain.h"
#include "qemu_process.h"
37
#include "virerror.h"
38
#include "viralloc.h"
39
#include "virlog.h"
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#include "virfile.h"
41
#include "virprocess.h"
42
#include "virobject.h"
43
#include "virprobe.h"
44
#include "virstring.h"
45

46 47 48 49
#ifdef WITH_DTRACE_PROBES
# include "libvirt_qemu_probes.h"
#endif

50 51
#define VIR_FROM_THIS VIR_FROM_QEMU

52 53
VIR_LOG_INIT("qemu.qemu_monitor");

54 55
#define DEBUG_IO 0
#define DEBUG_RAW_IO 0
56

57
struct _qemuMonitor {
58
    virObjectLockable parent;
59

60 61
    virCond notify;

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    int fd;
    int watch;
    int hasSendFD;

    virDomainObjPtr vm;

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    qemuMonitorCallbacksPtr cb;
69
    void *callbackOpaque;
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    /* If there's a command being processed this will be
     * non-NULL */
    qemuMonitorMessagePtr msg;

    /* Buffer incoming data ready for Text/QMP monitor
     * code to process & find message boundaries */
    size_t bufferOffset;
    size_t bufferLength;
    char *buffer;

    /* If anything went wrong, this will be fed back
     * the next monitor msg */
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    virError lastError;

    int nextSerial;
86

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    bool json;
    bool waitGreeting;
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    /* cache of query-command-line-options results */
    virJSONValuePtr options;
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    /* If found, path to the virtio memballoon driver */
    char *balloonpath;
    bool ballooninit;
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    /* Log file fd of the qemu process to dig for usable info */
    int logfd;
99 100
};

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static virClassPtr qemuMonitorClass;
static void qemuMonitorDispose(void *obj);

static int qemuMonitorOnceInit(void)
{
106
    if (!(qemuMonitorClass = virClassNew(virClassForObjectLockable(),
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                                         "qemuMonitor",
                                         sizeof(qemuMonitor),
                                         qemuMonitorDispose)))
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        return -1;

    return 0;
}

VIR_ONCE_GLOBAL_INIT(qemuMonitor)

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VIR_ENUM_IMPL(qemuMonitorMigrationStatus,
              QEMU_MONITOR_MIGRATION_STATUS_LAST,
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              "inactive", "active", "completed", "failed", "cancelled", "setup")
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VIR_ENUM_IMPL(qemuMonitorMigrationCaps,
              QEMU_MONITOR_MIGRATION_CAPS_LAST,
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              "xbzrle", "auto-converge", "rdma-pin-all")
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VIR_ENUM_IMPL(qemuMonitorVMStatus,
              QEMU_MONITOR_VM_STATUS_LAST,
              "debug", "inmigrate", "internal-error", "io-error", "paused",
              "postmigrate", "prelaunch", "finish-migrate", "restore-vm",
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              "running", "save-vm", "shutdown", "watchdog", "guest-panicked")
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typedef enum {
    QEMU_MONITOR_BLOCK_IO_STATUS_OK,
    QEMU_MONITOR_BLOCK_IO_STATUS_FAILED,
    QEMU_MONITOR_BLOCK_IO_STATUS_NOSPACE,

    QEMU_MONITOR_BLOCK_IO_STATUS_LAST
} qemuMonitorBlockIOStatus;

VIR_ENUM_DECL(qemuMonitorBlockIOStatus)

VIR_ENUM_IMPL(qemuMonitorBlockIOStatus,
              QEMU_MONITOR_BLOCK_IO_STATUS_LAST,
              "ok", "failed", "nospace")

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char *qemuMonitorEscapeArg(const char *in)
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{
    int len = 0;
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    size_t i, j;
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    char *out;

    /* To pass through the QEMU monitor, we need to use escape
       sequences: \r, \n, \", \\
    */

    for (i = 0; in[i] != '\0'; i++) {
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        switch (in[i]) {
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        case '\r':
        case '\n':
        case '"':
        case '\\':
            len += 2;
            break;
        default:
            len += 1;
            break;
        }
    }

    if (VIR_ALLOC_N(out, len + 1) < 0)
        return NULL;

    for (i = j = 0; in[i] != '\0'; i++) {
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        switch (in[i]) {
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        case '\r':
            out[j++] = '\\';
            out[j++] = 'r';
            break;
        case '\n':
            out[j++] = '\\';
            out[j++] = 'n';
            break;
        case '"':
        case '\\':
            out[j++] = '\\';
            out[j++] = in[i];
            break;
        default:
            out[j++] = in[i];
            break;
        }
    }
    out[j] = '\0';

    return out;
}

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char *qemuMonitorUnescapeArg(const char *in)
{
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    size_t i, j;
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    char *out;
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    int len = strlen(in);
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    char next;

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    if (VIR_ALLOC_N(out, len + 1) < 0)
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        return NULL;

    for (i = j = 0; i < len; ++i) {
        next = in[i];
        if (in[i] == '\\') {
            ++i;
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            switch (in[i]) {
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            case 'r':
                next = '\r';
                break;
            case 'n':
                next = '\n';
                break;
            case '"':
            case '\\':
                next = in[i];
                break;
            default:
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                /* invalid input (including trailing '\' at end of in) */
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                VIR_FREE(out);
                return NULL;
            }
        }
        out[j++] = next;
    }
    out[j] = '\0';

    return out;
}

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#if DEBUG_RAW_IO
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# include <c-ctype.h>
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static char * qemuMonitorEscapeNonPrintable(const char *text)
{
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    size_t i;
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    virBuffer buf = VIR_BUFFER_INITIALIZER;
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    for (i = 0; text[i] != '\0'; i++) {
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        if (c_isprint(text[i]) ||
            text[i] == '\n' ||
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            (text[i] == '\r' && text[i + 1] == '\n'))
            virBufferAddChar(&buf, text[i]);
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        else
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            virBufferAsprintf(&buf, "0x%02x", text[i]);
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    }
    return virBufferContentAndReset(&buf);
}
#endif

254
static void qemuMonitorDispose(void *obj)
255
{
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    qemuMonitorPtr mon = obj;

258
    VIR_DEBUG("mon=%p", mon);
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    if (mon->cb && mon->cb->destroy)
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        (mon->cb->destroy)(mon, mon->vm, mon->callbackOpaque);
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    virObjectUnref(mon->vm);

263
    virResetError(&mon->lastError);
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    virCondDestroy(&mon->notify);
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    VIR_FREE(mon->buffer);
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    virJSONValueFree(mon->options);
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    VIR_FREE(mon->balloonpath);
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    VIR_FORCE_CLOSE(mon->logfd);
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}


static int
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qemuMonitorOpenUnix(const char *monitor, pid_t cpid)
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{
    struct sockaddr_un addr;
    int monfd;
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    int timeout = 30; /* In seconds */
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    int ret;
    size_t i = 0;
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    if ((monfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
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        virReportSystemError(errno,
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                             "%s", _("failed to create socket"));
        return -1;
    }

    memset(&addr, 0, sizeof(addr));
    addr.sun_family = AF_UNIX;
    if (virStrcpyStatic(addr.sun_path, monitor) == NULL) {
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        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Monitor path %s too big for destination"), monitor);
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        goto error;
    }

    do {
        ret = connect(monfd, (struct sockaddr *) &addr, sizeof(addr));

        if (ret == 0)
            break;

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        if ((errno == ENOENT || errno == ECONNREFUSED) &&
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            (!cpid || virProcessKill(cpid, 0) == 0)) {
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            /* ENOENT       : Socket may not have shown up yet
             * ECONNREFUSED : Leftover socket hasn't been removed yet */
            continue;
        }

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        virReportSystemError(errno, "%s",
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                             _("failed to connect to monitor socket"));
        goto error;

    } while ((++i <= timeout*5) && (usleep(.2 * 1000000) <= 0));

    if (ret != 0) {
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        virReportSystemError(errno, "%s",
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                             _("monitor socket did not show up"));
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        goto error;
    }

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    return monfd;
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322
 error:
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    VIR_FORCE_CLOSE(monfd);
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    return -1;
}

static int
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qemuMonitorOpenPty(const char *monitor)
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{
    int monfd;

    if ((monfd = open(monitor, O_RDWR)) < 0) {
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        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Unable to open monitor path %s"), monitor);
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        return -1;
    }

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    return monfd;
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}
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/* Get a possible error from qemu's log. This function closes the
 * corresponding log fd */
static char *
qemuMonitorGetErrorFromLog(qemuMonitorPtr mon)
{
    int len;
    char *logbuf = NULL;
    int orig_errno = errno;

    if (mon->logfd < 0)
        return NULL;

    if (VIR_ALLOC_N_QUIET(logbuf, 4096) < 0)
        goto error;

    if ((len = qemuProcessReadLog(mon->logfd, logbuf, 4096 - 1, 0, true)) <= 0)
        goto error;

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 cleanup:
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    errno = orig_errno;
    VIR_FORCE_CLOSE(mon->logfd);
    return logbuf;

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 error:
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    VIR_FREE(logbuf);
    goto cleanup;
}


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/* This method processes data that has been received
 * from the monitor. Looking for async events and
 * replies/errors.
 */
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static int
qemuMonitorIOProcess(qemuMonitorPtr mon)
{
    int len;
    qemuMonitorMessagePtr msg = NULL;

    /* See if there's a message & whether its ready for its reply
     * ie whether its completed writing all its data */
    if (mon->msg && mon->msg->txOffset == mon->msg->txLength)
        msg = mon->msg;

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#if DEBUG_IO
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# if DEBUG_RAW_IO
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    char *str1 = qemuMonitorEscapeNonPrintable(msg ? msg->txBuffer : "");
    char *str2 = qemuMonitorEscapeNonPrintable(mon->buffer);
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    VIR_ERROR(_("Process %d %p %p [[[[%s]]][[[%s]]]"), (int)mon->bufferOffset, mon->msg, msg, str1, str2);
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    VIR_FREE(str1);
    VIR_FREE(str2);
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# else
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    VIR_DEBUG("Process %d", (int)mon->bufferOffset);
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# endif
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#endif

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    PROBE(QEMU_MONITOR_IO_PROCESS,
          "mon=%p buf=%s len=%zu", mon, mon->buffer, mon->bufferOffset);

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    if (mon->json)
        len = qemuMonitorJSONIOProcess(mon,
                                       mon->buffer, mon->bufferOffset,
                                       msg);
    else
        len = qemuMonitorTextIOProcess(mon,
                                       mon->buffer, mon->bufferOffset,
                                       msg);
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    if (len < 0)
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        return -1;

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    if (len && mon->waitGreeting)
        mon->waitGreeting = false;
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    if (len < mon->bufferOffset) {
        memmove(mon->buffer, mon->buffer + len, mon->bufferOffset - len);
        mon->bufferOffset -= len;
    } else {
        VIR_FREE(mon->buffer);
        mon->bufferOffset = mon->bufferLength = 0;
    }
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#if DEBUG_IO
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    VIR_DEBUG("Process done %d used %d", (int)mon->bufferOffset, len);
425
#endif
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    if (msg && msg->finished)
        virCondBroadcast(&mon->notify);
    return len;
}


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/* Call this function while holding the monitor lock. */
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static int
qemuMonitorIOWriteWithFD(qemuMonitorPtr mon,
                         const char *data,
                         size_t len,
                         int fd)
{
    struct msghdr msg;
    struct iovec iov[1];
    int ret;
    char control[CMSG_SPACE(sizeof(int))];
    struct cmsghdr *cmsg;

    memset(&msg, 0, sizeof(msg));
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    memset(control, 0, sizeof(control));
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    iov[0].iov_base = (void *)data;
    iov[0].iov_len = len;

    msg.msg_iov = iov;
    msg.msg_iovlen = 1;

    msg.msg_control = control;
    msg.msg_controllen = sizeof(control);

    cmsg = CMSG_FIRSTHDR(&msg);
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    /* Some static analyzers, like clang 2.6-0.6.pre2, fail to see
       that our use of CMSG_FIRSTHDR will not return NULL.  */
    sa_assert(cmsg);
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    cmsg->cmsg_len = CMSG_LEN(sizeof(int));
    cmsg->cmsg_level = SOL_SOCKET;
    cmsg->cmsg_type = SCM_RIGHTS;
    memcpy(CMSG_DATA(cmsg), &fd, sizeof(int));

    do {
        ret = sendmsg(mon->fd, &msg, 0);
    } while (ret < 0 && errno == EINTR);

    return ret;
}

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/*
 * Called when the monitor is able to write data
 * Call this function while holding the monitor lock.
 */
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static int
qemuMonitorIOWrite(qemuMonitorPtr mon)
{
    int done;
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    char *buf;
    size_t len;
483 484 485 486 487

    /* If no active message, or fully transmitted, the no-op */
    if (!mon->msg || mon->msg->txOffset == mon->msg->txLength)
        return 0;

488
    if (mon->msg->txFD != -1 && !mon->hasSendFD) {
489 490
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Monitor does not support sending of file descriptors"));
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        return -1;
    }

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    buf = mon->msg->txBuffer + mon->msg->txOffset;
    len = mon->msg->txLength - mon->msg->txOffset;
496
    if (mon->msg->txFD == -1)
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        done = write(mon->fd, buf, len);
498
    else
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        done = qemuMonitorIOWriteWithFD(mon, buf, len, mon->msg->txFD);
500

501
    PROBE(QEMU_MONITOR_IO_WRITE,
502
          "mon=%p buf=%s len=%zu ret=%d errno=%d",
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          mon, buf, len, done, errno);
504

505
    if (mon->msg->txFD != -1) {
506 507 508
        PROBE(QEMU_MONITOR_IO_SEND_FD,
              "mon=%p fd=%d ret=%d errno=%d",
              mon, mon->msg->txFD, done, errno);
509
    }
510

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    if (done < 0) {
        if (errno == EAGAIN)
            return 0;

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        virReportSystemError(errno, "%s",
                             _("Unable to write to monitor"));
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        return -1;
    }
    mon->msg->txOffset += done;
    return done;
}

/*
 * Called when the monitor has incoming data to read
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 * Call this function while holding the monitor lock.
526 527 528 529 530 531 532 533 534 535 536
 *
 * Returns -1 on error, or number of bytes read
 */
static int
qemuMonitorIORead(qemuMonitorPtr mon)
{
    size_t avail = mon->bufferLength - mon->bufferOffset;
    int ret = 0;

    if (avail < 1024) {
        if (VIR_REALLOC_N(mon->buffer,
537
                          mon->bufferLength + 1024) < 0)
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            return -1;
        mon->bufferLength += 1024;
        avail += 1024;
    }

    /* Read as much as we can get into our buffer,
       until we block on EAGAIN, or hit EOF */
    while (avail > 1) {
        int got;
        got = read(mon->fd,
                   mon->buffer + mon->bufferOffset,
                   avail - 1);
        if (got < 0) {
            if (errno == EAGAIN)
                break;
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            virReportSystemError(errno, "%s",
                                 _("Unable to read from monitor"));
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            ret = -1;
            break;
        }
        if (got == 0)
            break;

        ret += got;
        avail -= got;
        mon->bufferOffset += got;
        mon->buffer[mon->bufferOffset] = '\0';
    }

567
#if DEBUG_IO
568
    VIR_DEBUG("Now read %d bytes of data", (int)mon->bufferOffset);
569
#endif
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    return ret;
}


static void qemuMonitorUpdateWatch(qemuMonitorPtr mon)
{
    int events =
        VIR_EVENT_HANDLE_HANGUP |
        VIR_EVENT_HANDLE_ERROR;

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    if (!mon->watch)
        return;

584
    if (mon->lastError.code == VIR_ERR_OK) {
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        events |= VIR_EVENT_HANDLE_READABLE;

587
        if ((mon->msg && mon->msg->txOffset < mon->msg->txLength) &&
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            !mon->waitGreeting)
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            events |= VIR_EVENT_HANDLE_WRITABLE;
    }

    virEventUpdateHandle(mon->watch, events);
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}

595 596

static void
597 598
qemuMonitorIO(int watch, int fd, int events, void *opaque)
{
599
    qemuMonitorPtr mon = opaque;
600 601
    bool error = false;
    bool eof = false;
602
    bool hangup = false;
603

604 605
    virObjectRef(mon);

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    /* lock access to the monitor and protect fd */
607
    virObjectLock(mon);
608
#if DEBUG_IO
609
    VIR_DEBUG("Monitor %p I/O on watch %d fd %d events %d", mon, watch, fd, events);
610
#endif
611
    if (mon->fd == -1 || mon->watch == 0) {
612
        virObjectUnlock(mon);
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        virObjectUnref(mon);
        return;
    }
616

617
    if (mon->fd != fd || mon->watch != watch) {
618
        if (events & (VIR_EVENT_HANDLE_HANGUP | VIR_EVENT_HANDLE_ERROR))
619
            eof = true;
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        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("event from unexpected fd %d!=%d / watch %d!=%d"),
                       mon->fd, fd, mon->watch, watch);
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        error = true;
    } else if (mon->lastError.code != VIR_ERR_OK) {
625
        if (events & (VIR_EVENT_HANDLE_HANGUP | VIR_EVENT_HANDLE_ERROR))
626
            eof = true;
627
        error = true;
628
    } else {
629
        if (events & VIR_EVENT_HANDLE_WRITABLE) {
630
            if (qemuMonitorIOWrite(mon) < 0) {
631
                error = true;
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                if (errno == ECONNRESET)
                    hangup = true;
            }
635 636
            events &= ~VIR_EVENT_HANDLE_WRITABLE;
        }
637 638

        if (!error &&
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            events & VIR_EVENT_HANDLE_READABLE) {
            int got = qemuMonitorIORead(mon);
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            events &= ~VIR_EVENT_HANDLE_READABLE;
            if (got < 0) {
643
                error = true;
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                if (errno == ECONNRESET)
                    hangup = true;
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            } else if (got == 0) {
                eof = true;
            } else {
                /* Ignore hangup/error events if we read some data, to
                 * give time for that data to be consumed */
651 652 653
                events = 0;

                if (qemuMonitorIOProcess(mon) < 0)
654
                    error = true;
655
            }
656 657
        }

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        if (events & VIR_EVENT_HANDLE_HANGUP) {
            hangup = true;
            if (!error) {
                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                               _("End of file from monitor"));
                eof = true;
                events &= ~VIR_EVENT_HANDLE_HANGUP;
            }
666 667
        }

668 669
        if (!error && !eof &&
            events & VIR_EVENT_HANDLE_ERROR) {
670 671
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Invalid file descriptor while waiting for monitor"));
672
            eof = true;
673
            events &= ~VIR_EVENT_HANDLE_ERROR;
674 675
        }
        if (!error && events) {
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            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("Unhandled event %d for monitor fd %d"),
                           events, mon->fd);
679
            error = true;
680 681 682
        }
    }

683
    if (error || eof) {
684 685 686
        if (hangup) {
            /* Check if an error message from qemu is available and if so, use
             * it to overwrite the actual message. It's done only in early
687 688 689
             * startup phases or during incoming migration when the message
             * from qemu is certainly more interesting than a
             * "connection reset by peer" message.
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             */
            char *qemuMessage;

            if ((qemuMessage = qemuMonitorGetErrorFromLog(mon))) {
                virReportError(VIR_ERR_INTERNAL_ERROR,
                               _("early end of file from monitor: "
                                 "possible problem:\n%s"),
                               qemuMessage);
                virCopyLastError(&mon->lastError);
                virResetLastError();
            }

            VIR_FREE(qemuMessage);
        }

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        if (mon->lastError.code != VIR_ERR_OK) {
            /* Already have an error, so clear any new error */
            virResetLastError();
        } else {
            virErrorPtr err = virGetLastError();
            if (!err)
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                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                               _("Error while processing monitor IO"));
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            virCopyLastError(&mon->lastError);
            virResetLastError();
        }

        VIR_DEBUG("Error on monitor %s", NULLSTR(mon->lastError.message));
        /* If IO process resulted in an error & we have a message,
         * then wakeup that waiter */
        if (mon->msg && !mon->msg->finished) {
            mon->msg->finished = 1;
            virCondSignal(&mon->notify);
        }
    }
725 726 727

    qemuMonitorUpdateWatch(mon);

728 729 730
    /* We have to unlock to avoid deadlock against command thread,
     * but is this safe ?  I think it is, because the callback
     * will try to acquire the virDomainObjPtr mutex next */
731
    if (eof) {
J
Jiri Denemark 已提交
732
        qemuMonitorEofNotifyCallback eofNotify = mon->cb->eofNotify;
733
        virDomainObjPtr vm = mon->vm;
734

735 736
        /* Make sure anyone waiting wakes up now */
        virCondSignal(&mon->notify);
737
        virObjectUnlock(mon);
738
        VIR_DEBUG("Triggering EOF callback");
739
        (eofNotify)(mon, vm, mon->callbackOpaque);
740
        virObjectUnref(mon);
741
    } else if (error) {
J
Jiri Denemark 已提交
742
        qemuMonitorErrorNotifyCallback errorNotify = mon->cb->errorNotify;
743
        virDomainObjPtr vm = mon->vm;
744

745 746
        /* Make sure anyone waiting wakes up now */
        virCondSignal(&mon->notify);
747
        virObjectUnlock(mon);
748
        VIR_DEBUG("Triggering error callback");
749
        (errorNotify)(mon, vm, mon->callbackOpaque);
750
        virObjectUnref(mon);
751
    } else {
752
        virObjectUnlock(mon);
753
        virObjectUnref(mon);
754
    }
755 756 757
}


758 759 760 761
static qemuMonitorPtr
qemuMonitorOpenInternal(virDomainObjPtr vm,
                        int fd,
                        bool hasSendFD,
E
Eric Blake 已提交
762
                        bool json,
763 764
                        qemuMonitorCallbacksPtr cb,
                        void *opaque)
765
{
766 767
    qemuMonitorPtr mon;

768
    if (!cb->eofNotify) {
769 770
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("EOF notify callback must be supplied"));
771 772
        return NULL;
    }
773 774 775 776 777
    if (!cb->errorNotify) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Error notify callback must be supplied"));
        return NULL;
    }
778

779 780 781
    if (qemuMonitorInitialize() < 0)
        return NULL;

782
    if (!(mon = virObjectLockableNew(qemuMonitorClass)))
783 784
        return NULL;

785
    mon->fd = -1;
786
    mon->logfd = -1;
787
    if (virCondInit(&mon->notify) < 0) {
788 789
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("cannot initialize monitor condition"));
790
        goto cleanup;
791
    }
792 793
    mon->fd = fd;
    mon->hasSendFD = hasSendFD;
794
    mon->vm = virObjectRef(vm);
D
Daniel P. Berrange 已提交
795
    mon->json = json;
796
    if (json)
E
Eric Blake 已提交
797
        mon->waitGreeting = true;
798
    mon->cb = cb;
799
    mon->callbackOpaque = opaque;
800

801
    if (virSetCloseExec(mon->fd) < 0) {
802 803
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("Unable to set monitor close-on-exec flag"));
804 805 806
        goto cleanup;
    }
    if (virSetNonBlock(mon->fd) < 0) {
807 808
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("Unable to put monitor into non-blocking mode"));
809 810 811 812
        goto cleanup;
    }


E
Eric Blake 已提交
813
    virObjectLock(mon);
814
    virObjectRef(mon);
815
    if ((mon->watch = virEventAddHandle(mon->fd,
816 817 818
                                        VIR_EVENT_HANDLE_HANGUP |
                                        VIR_EVENT_HANDLE_ERROR |
                                        VIR_EVENT_HANDLE_READABLE,
819
                                        qemuMonitorIO,
820 821
                                        mon,
                                        virObjectFreeCallback)) < 0) {
822
        virObjectUnref(mon);
E
Eric Blake 已提交
823
        virObjectUnlock(mon);
824 825
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("unable to register monitor events"));
826 827 828
        goto cleanup;
    }

829 830
    PROBE(QEMU_MONITOR_NEW,
          "mon=%p refs=%d fd=%d",
831
          mon, mon->parent.parent.u.s.refs, mon->fd);
832
    virObjectUnlock(mon);
833

834 835
    return mon;

836
 cleanup:
837 838 839 840 841 842
    /* We don't want the 'destroy' callback invoked during
     * cleanup from construction failure, because that can
     * give a double-unref on virDomainObjPtr in the caller,
     * so kill the callbacks now.
     */
    mon->cb = NULL;
843 844
    /* The caller owns 'fd' on failure */
    mon->fd = -1;
845 846 847 848
    qemuMonitorClose(mon);
    return NULL;
}

849 850 851
qemuMonitorPtr
qemuMonitorOpen(virDomainObjPtr vm,
                virDomainChrSourceDefPtr config,
E
Eric Blake 已提交
852
                bool json,
853 854
                qemuMonitorCallbacksPtr cb,
                void *opaque)
855 856 857 858 859 860 861 862
{
    int fd;
    bool hasSendFD = false;
    qemuMonitorPtr ret;

    switch (config->type) {
    case VIR_DOMAIN_CHR_TYPE_UNIX:
        hasSendFD = true;
863
        if ((fd = qemuMonitorOpenUnix(config->data.nix.path, vm ? vm->pid : 0)) < 0)
864 865 866 867 868 869 870 871 872 873 874 875 876 877 878
            return NULL;
        break;

    case VIR_DOMAIN_CHR_TYPE_PTY:
        if ((fd = qemuMonitorOpenPty(config->data.file.path)) < 0)
            return NULL;
        break;

    default:
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("unable to handle monitor type: %s"),
                       virDomainChrTypeToString(config->type));
        return NULL;
    }

879
    ret = qemuMonitorOpenInternal(vm, fd, hasSendFD, json, cb, opaque);
880 881 882 883 884 885 886 887
    if (!ret)
        VIR_FORCE_CLOSE(fd);
    return ret;
}


qemuMonitorPtr qemuMonitorOpenFD(virDomainObjPtr vm,
                                 int sockfd,
E
Eric Blake 已提交
888
                                 bool json,
889 890
                                 qemuMonitorCallbacksPtr cb,
                                 void *opaque)
891
{
892
    return qemuMonitorOpenInternal(vm, sockfd, true, json, cb, opaque);
893 894
}

895

896
void qemuMonitorClose(qemuMonitorPtr mon)
897 898
{
    if (!mon)
899
        return;
900

901
    virObjectLock(mon);
902
    PROBE(QEMU_MONITOR_CLOSE,
903
          "mon=%p refs=%d", mon, mon->parent.parent.u.s.refs);
S
Stefan Berger 已提交
904 905

    if (mon->fd >= 0) {
906
        if (mon->watch) {
907
            virEventRemoveHandle(mon->watch);
908 909
            mon->watch = 0;
        }
S
Stefan Berger 已提交
910
        VIR_FORCE_CLOSE(mon->fd);
911
    }
912

913 914 915 916 917 918 919
    /* In case another thread is waiting for its monitor command to be
     * processed, we need to wake it up with appropriate error set.
     */
    if (mon->msg) {
        if (mon->lastError.code == VIR_ERR_OK) {
            virErrorPtr err = virSaveLastError();

920 921
            virReportError(VIR_ERR_OPERATION_FAILED, "%s",
                           _("Qemu monitor was closed"));
922 923 924 925 926 927 928 929 930 931 932 933
            virCopyLastError(&mon->lastError);
            if (err) {
                virSetError(err);
                virFreeError(err);
            } else {
                virResetLastError();
            }
        }
        mon->msg->finished = 1;
        virCondSignal(&mon->notify);
    }

934 935 936 937 938 939
    /* Propagate existing monitor error in case the current thread has no
     * error set.
     */
    if (mon->lastError.code != VIR_ERR_OK && !virGetLastError())
        virSetError(&mon->lastError);

940
    virObjectUnlock(mon);
941
    virObjectUnref(mon);
942 943 944
}


945 946 947 948
char *qemuMonitorNextCommandID(qemuMonitorPtr mon)
{
    char *id;

949
    ignore_value(virAsprintf(&id, "libvirt-%d", ++mon->nextSerial));
950 951 952 953
    return id;
}


954 955
int qemuMonitorSend(qemuMonitorPtr mon,
                    qemuMonitorMessagePtr msg)
956
{
957
    int ret = -1;
958

E
Eric Blake 已提交
959
    /* Check whether qemu quit unexpectedly */
960 961 962 963
    if (mon->lastError.code != VIR_ERR_OK) {
        VIR_DEBUG("Attempt to send command while error is set %s",
                  NULLSTR(mon->lastError.message));
        virSetError(&mon->lastError);
964 965 966
        return -1;
    }

967 968
    mon->msg = msg;
    qemuMonitorUpdateWatch(mon);
969

970 971 972 973
    PROBE(QEMU_MONITOR_SEND_MSG,
          "mon=%p msg=%s fd=%d",
          mon, mon->msg->txBuffer, mon->msg->txFD);

974
    while (!mon->msg->finished) {
975
        if (virCondWait(&mon->notify, &mon->parent.lock) < 0) {
976 977
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Unable to wait on monitor condition"));
978
            goto cleanup;
979 980 981 982 983 984 985 986
        }
    }

    if (mon->lastError.code != VIR_ERR_OK) {
        VIR_DEBUG("Send command resulted in error %s",
                  NULLSTR(mon->lastError.message));
        virSetError(&mon->lastError);
        goto cleanup;
987
    }
988

989
    ret = 0;
990

991
 cleanup:
992 993
    mon->msg = NULL;
    qemuMonitorUpdateWatch(mon);
994

995
    return ret;
996
}
997 998


999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
virJSONValuePtr
qemuMonitorGetOptions(qemuMonitorPtr mon)
{
    return mon->options;
}

void
qemuMonitorSetOptions(qemuMonitorPtr mon, virJSONValuePtr options)
{
    mon->options = options;
}

1011 1012 1013 1014

/**
 * Search the qom objects by it's known name.  The name is compared against
 * filed 'type' formatted as 'link<%name>'.
1015 1016 1017 1018 1019 1020
 *
 * This procedure will be call recursively until found or the qom-list is
 * exhausted.
 *
 * Returns:
 *
1021
 *   0  - Found
1022
 *  -1  - Error bail out
1023
 *  -2  - Not found
1024 1025 1026 1027
 *
 * NOTE: This assumes we have already called qemuDomainObjEnterMonitor()
 */
static int
1028 1029 1030 1031
qemuMonitorFindObjectPath(qemuMonitorPtr mon,
                          const char *curpath,
                          const char *name,
                          char **path)
1032
{
1033 1034
    ssize_t i, npaths = 0;
    int ret = -2;
1035
    char *nextpath = NULL;
1036
    char *type = NULL;
1037 1038
    qemuMonitorJSONListPathPtr *paths = NULL;

1039
    if (virAsprintf(&type, "link<%s>", name) < 0)
1040 1041
        return -1;

1042
    VIR_DEBUG("Searching for '%s' Object Path starting at '%s'", type, curpath);
1043 1044

    npaths = qemuMonitorJSONGetObjectListPaths(mon, curpath, &paths);
1045
    if (npaths < 0)
1046
        goto cleanup;
1047

1048
    for (i = 0; i < npaths && ret == -2; i++) {
1049

1050 1051 1052 1053 1054
        if (STREQ_NULLABLE(paths[i]->type, type)) {
            VIR_DEBUG("Path to '%s' is '%s/%s'", type, curpath, paths[i]->name);
            ret = 0;
            if (virAsprintf(path, "%s/%s", curpath, paths[i]->name) < 0) {
                *path = NULL;
1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
                ret = -1;
            }
            goto cleanup;
        }

        /* Type entries that begin with "child<" are a branch that can be
         * traversed looking for more entries
         */
        if (paths[i]->type && STRPREFIX(paths[i]->type, "child<")) {
            if (virAsprintf(&nextpath, "%s/%s", curpath, paths[i]->name) < 0) {
                ret = -1;
                goto cleanup;
            }
1068 1069

            ret = qemuMonitorFindObjectPath(mon, nextpath, name, path);
1070 1071 1072
        }
    }

1073
 cleanup:
1074 1075 1076 1077
    for (i = 0; i < npaths; i++)
        qemuMonitorJSONListPathFree(paths[i]);
    VIR_FREE(paths);
    VIR_FREE(nextpath);
1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153
    VIR_FREE(type);
    return ret;
}


/**
 * Search the qom objects for the balloon driver object by it's known name
 * of "virtio-balloon-pci".  The entry for the driver will be found by using
 * function "qemuMonitorFindObjectPath".
 *
 * Once found, check the entry to ensure it has the correct property listed.
 * If it does not, then obtaining statistics from QEMU will not be possible.
 * This feature was added to QEMU 1.5.
 *
 * Returns:
 *
 *   0  - Found
 *  -1  - Not found or error
 *
 * NOTE: This assumes we have already called qemuDomainObjEnterMonitor()
 */
static int
qemuMonitorFindBalloonObjectPath(qemuMonitorPtr mon,
                                 const char *curpath)
{
    ssize_t i, nprops = 0;
    int ret = -1;
    char *path = NULL;
    qemuMonitorJSONListPathPtr *bprops = NULL;
    virDomainObjPtr vm = mon->vm;

    if (mon->balloonpath) {
        return 0;
    } else if (mon->ballooninit) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Cannot determine balloon device path"));
        return -1;
    }

    /* Not supported */
    if (!vm->def->memballoon ||
        vm->def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Memory balloon model must be virtio to "
                         "get memballoon path"));
        return -1;
    }

    if (qemuMonitorFindObjectPath(mon, curpath, "virtio-balloon-pci", &path) < 0)
        return -1;

    nprops = qemuMonitorJSONGetObjectListPaths(mon, path, &bprops);
    if (nprops < 0)
        goto cleanup;

    for (i = 0; i < nprops; i++) {
        if (STREQ(bprops[i]->name, "guest-stats-polling-interval")) {
            VIR_DEBUG("Found Balloon Object Path %s", path);
            mon->balloonpath = path;
            path = NULL;
            ret = 0;
            goto cleanup;
        }
    }


    /* If we get here, we found the path, but not the property */
    virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                   _("Property 'guest-stats-polling-interval' "
                     "not found on memory balloon driver."));

 cleanup:
    for (i = 0; i < nprops; i++)
        qemuMonitorJSONListPathFree(bprops[i]);
    VIR_FREE(bprops);
    VIR_FREE(path);
1154 1155 1156
    return ret;
}

1157 1158 1159 1160
int qemuMonitorHMPCommandWithFd(qemuMonitorPtr mon,
                                const char *cmd,
                                int scm_fd,
                                char **reply)
1161
{
1162 1163 1164 1165 1166 1167 1168 1169
    char *json_cmd = NULL;
    int ret = -1;

    if (mon->json) {
        /* hack to avoid complicating each call to text monitor functions */
        json_cmd = qemuMonitorUnescapeArg(cmd);
        if (!json_cmd) {
            VIR_DEBUG("Could not unescape command: %s", cmd);
1170 1171
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Unable to unescape command"));
1172 1173 1174 1175 1176 1177 1178
            goto cleanup;
        }
        ret = qemuMonitorJSONHumanCommandWithFd(mon, json_cmd, scm_fd, reply);
    } else {
        ret = qemuMonitorTextCommandWithFd(mon, cmd, scm_fd, reply);
    }

1179
 cleanup:
1180 1181
    VIR_FREE(json_cmd);
    return ret;
1182 1183
}

E
Eric Blake 已提交
1184 1185 1186
/* Ensure proper locking around callbacks.  */
#define QEMU_MONITOR_CALLBACK(mon, ret, callback, ...)          \
    do {                                                        \
1187
        virObjectRef(mon);                                      \
1188
        virObjectUnlock(mon);                                   \
E
Eric Blake 已提交
1189
        if ((mon)->cb && (mon)->cb->callback)                   \
1190 1191
            (ret) = (mon)->cb->callback(mon, __VA_ARGS__,       \
                                        (mon)->callbackOpaque); \
1192
        virObjectLock(mon);                                     \
1193
        virObjectUnref(mon);                                    \
E
Eric Blake 已提交
1194
    } while (0)
1195

1196 1197 1198 1199 1200 1201
int qemuMonitorGetDiskSecret(qemuMonitorPtr mon,
                             virConnectPtr conn,
                             const char *path,
                             char **secret,
                             size_t *secretLen)
{
1202
    int ret = -1;
1203 1204 1205
    *secret = NULL;
    *secretLen = 0;

E
Eric Blake 已提交
1206 1207
    QEMU_MONITOR_CALLBACK(mon, ret, diskSecretLookup, conn, mon->vm,
                          path, secret, secretLen);
1208
    return ret;
1209
}
1210 1211


1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225
int
qemuMonitorEmitEvent(qemuMonitorPtr mon, const char *event,
                     long long seconds, unsigned int micros,
                     const char *details)
{
    int ret = -1;
    VIR_DEBUG("mon=%p event=%s", mon, event);

    QEMU_MONITOR_CALLBACK(mon, ret, domainEvent, mon->vm, event, seconds,
                          micros, details);
    return ret;
}


1226 1227 1228 1229 1230
int qemuMonitorEmitShutdown(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1231
    QEMU_MONITOR_CALLBACK(mon, ret, domainShutdown, mon->vm);
1232 1233 1234 1235 1236 1237 1238 1239 1240
    return ret;
}


int qemuMonitorEmitReset(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1241
    QEMU_MONITOR_CALLBACK(mon, ret, domainReset, mon->vm);
1242 1243 1244 1245 1246 1247 1248 1249 1250
    return ret;
}


int qemuMonitorEmitPowerdown(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1251
    QEMU_MONITOR_CALLBACK(mon, ret, domainPowerdown, mon->vm);
1252 1253 1254 1255 1256 1257 1258 1259 1260
    return ret;
}


int qemuMonitorEmitStop(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1261
    QEMU_MONITOR_CALLBACK(mon, ret, domainStop, mon->vm);
1262 1263 1264 1265
    return ret;
}


1266 1267 1268 1269 1270 1271 1272 1273 1274 1275
int qemuMonitorEmitResume(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainResume, mon->vm);
    return ret;
}


1276 1277 1278 1279 1280 1281 1282 1283 1284
int qemuMonitorEmitGuestPanic(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);
    QEMU_MONITOR_CALLBACK(mon, ret, domainGuestPanic, mon->vm);
    return ret;
}


1285 1286 1287 1288 1289
int qemuMonitorEmitRTCChange(qemuMonitorPtr mon, long long offset)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1290
    QEMU_MONITOR_CALLBACK(mon, ret, domainRTCChange, mon->vm, offset);
1291 1292 1293 1294
    return ret;
}


1295 1296 1297 1298 1299
int qemuMonitorEmitWatchdog(qemuMonitorPtr mon, int action)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1300
    QEMU_MONITOR_CALLBACK(mon, ret, domainWatchdog, mon->vm, action);
1301 1302 1303 1304
    return ret;
}


1305 1306
int qemuMonitorEmitIOError(qemuMonitorPtr mon,
                           const char *diskAlias,
1307 1308
                           int action,
                           const char *reason)
1309 1310 1311 1312
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1313 1314
    QEMU_MONITOR_CALLBACK(mon, ret, domainIOError, mon->vm,
                          diskAlias, action, reason);
1315 1316 1317 1318
    return ret;
}


1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333
int qemuMonitorEmitGraphics(qemuMonitorPtr mon,
                            int phase,
                            int localFamily,
                            const char *localNode,
                            const char *localService,
                            int remoteFamily,
                            const char *remoteNode,
                            const char *remoteService,
                            const char *authScheme,
                            const char *x509dname,
                            const char *saslUsername)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

E
Eric Blake 已提交
1334 1335 1336 1337
    QEMU_MONITOR_CALLBACK(mon, ret, domainGraphics, mon->vm, phase,
                          localFamily, localNode, localService,
                          remoteFamily, remoteNode, remoteService,
                          authScheme, x509dname, saslUsername);
1338 1339 1340
    return ret;
}

1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353
int qemuMonitorEmitTrayChange(qemuMonitorPtr mon,
                              const char *devAlias,
                              int reason)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainTrayChange, mon->vm,
                          devAlias, reason);

    return ret;
}

O
Osier Yang 已提交
1354 1355 1356 1357 1358 1359 1360 1361 1362 1363
int qemuMonitorEmitPMWakeup(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainPMWakeup, mon->vm);

    return ret;
}

O
Osier Yang 已提交
1364 1365 1366 1367 1368 1369 1370 1371 1372 1373
int qemuMonitorEmitPMSuspend(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainPMSuspend, mon->vm);

    return ret;
}

1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
int qemuMonitorEmitPMSuspendDisk(qemuMonitorPtr mon)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainPMSuspendDisk, mon->vm);

    return ret;
}

1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396
int qemuMonitorEmitBlockJob(qemuMonitorPtr mon,
                            const char *diskAlias,
                            int type,
                            int status)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainBlockJob, mon->vm,
                          diskAlias, type, status);
    return ret;
}

1397

1398 1399 1400 1401 1402 1403 1404 1405 1406 1407
int qemuMonitorEmitBalloonChange(qemuMonitorPtr mon,
                                 unsigned long long actual)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainBalloonChange, mon->vm, actual);
    return ret;
}

1408

1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421
int
qemuMonitorEmitDeviceDeleted(qemuMonitorPtr mon,
                             const char *devAlias)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainDeviceDeleted, mon->vm, devAlias);

    return ret;
}


1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434
int
qemuMonitorEmitNicRxFilterChanged(qemuMonitorPtr mon,
                                  const char *devAlias)
{
    int ret = -1;
    VIR_DEBUG("mon=%p", mon);

    QEMU_MONITOR_CALLBACK(mon, ret, domainNicRxFilterChanged, mon->vm, devAlias);

    return ret;
}


1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448
int
qemuMonitorEmitSerialChange(qemuMonitorPtr mon,
                            const char *devAlias,
                            bool connected)
{
    int ret = -1;
    VIR_DEBUG("mon=%p, devAlias='%s', connected=%d", mon, devAlias, connected);

    QEMU_MONITOR_CALLBACK(mon, ret, domainSerialChange, mon->vm, devAlias, connected);

    return ret;
}


1449
int qemuMonitorSetCapabilities(qemuMonitorPtr mon)
1450 1451
{
    int ret;
1452
    VIR_DEBUG("mon=%p", mon);
1453 1454

    if (!mon) {
1455 1456
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1457 1458
        return -1;
    }
1459

1460
    if (mon->json) {
1461
        ret = qemuMonitorJSONSetCapabilities(mon);
1462
        if (ret < 0)
1463
            goto cleanup;
1464
    } else {
1465
        ret = 0;
1466
    }
1467

1468
 cleanup:
1469 1470 1471 1472
    return ret;
}


1473 1474 1475 1476
int
qemuMonitorStartCPUs(qemuMonitorPtr mon,
                     virConnectPtr conn)
{
D
Daniel P. Berrange 已提交
1477
    int ret;
1478
    VIR_DEBUG("mon=%p", mon);
1479 1480

    if (!mon) {
1481 1482
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1483 1484
        return -1;
    }
1485

D
Daniel P. Berrange 已提交
1486 1487 1488 1489 1490
    if (mon->json)
        ret = qemuMonitorJSONStartCPUs(mon, conn);
    else
        ret = qemuMonitorTextStartCPUs(mon, conn);
    return ret;
1491 1492 1493 1494 1495 1496
}


int
qemuMonitorStopCPUs(qemuMonitorPtr mon)
{
D
Daniel P. Berrange 已提交
1497
    int ret;
1498
    VIR_DEBUG("mon=%p", mon);
1499 1500

    if (!mon) {
1501 1502
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1503 1504
        return -1;
    }
1505

D
Daniel P. Berrange 已提交
1506 1507 1508 1509 1510
    if (mon->json)
        ret = qemuMonitorJSONStopCPUs(mon);
    else
        ret = qemuMonitorTextStopCPUs(mon);
    return ret;
1511 1512 1513
}


1514
int
1515 1516 1517
qemuMonitorGetStatus(qemuMonitorPtr mon,
                     bool *running,
                     virDomainPausedReason *reason)
1518 1519
{
    int ret;
1520
    VIR_DEBUG("mon=%p, running=%p, reason=%p", mon, running, reason);
1521 1522

    if (!mon || !running) {
1523 1524
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("both monitor and running must not be NULL"));
1525 1526 1527 1528
        return -1;
    }

    if (mon->json)
1529
        ret = qemuMonitorJSONGetStatus(mon, running, reason);
1530
    else
1531
        ret = qemuMonitorTextGetStatus(mon, running, reason);
1532 1533 1534 1535
    return ret;
}


1536 1537
int qemuMonitorSystemPowerdown(qemuMonitorPtr mon)
{
D
Daniel P. Berrange 已提交
1538
    int ret;
1539
    VIR_DEBUG("mon=%p", mon);
1540 1541

    if (!mon) {
1542 1543
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1544 1545
        return -1;
    }
1546

D
Daniel P. Berrange 已提交
1547 1548 1549 1550 1551
    if (mon->json)
        ret = qemuMonitorJSONSystemPowerdown(mon);
    else
        ret = qemuMonitorTextSystemPowerdown(mon);
    return ret;
1552 1553 1554
}


1555 1556 1557 1558 1559 1560
int qemuMonitorSystemReset(qemuMonitorPtr mon)
{
    int ret;
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
1561 1562
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONSystemReset(mon);
    else
        ret = qemuMonitorTextSystemReset(mon);
    return ret;
}


1574 1575 1576
int qemuMonitorGetCPUInfo(qemuMonitorPtr mon,
                          int **pids)
{
D
Daniel P. Berrange 已提交
1577
    int ret;
1578
    VIR_DEBUG("mon=%p", mon);
1579 1580

    if (!mon) {
1581 1582
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1583 1584
        return -1;
    }
1585

D
Daniel P. Berrange 已提交
1586 1587 1588 1589 1590
    if (mon->json)
        ret = qemuMonitorJSONGetCPUInfo(mon, pids);
    else
        ret = qemuMonitorTextGetCPUInfo(mon, pids);
    return ret;
1591 1592
}

1593 1594
int qemuMonitorSetLink(qemuMonitorPtr mon,
                       const char *name,
1595
                       virDomainNetInterfaceLinkState state)
1596 1597 1598 1599 1600
{
    int ret;
    VIR_DEBUG("mon=%p, name=%p:%s, state=%u", mon, name, name, state);

    if (!mon || !name) {
1601 1602
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor || name must not be NULL"));
1603 1604 1605 1606 1607 1608 1609 1610 1611
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONSetLink(mon, name, state);
    else
        ret = qemuMonitorTextSetLink(mon, name, state);
    return ret;
}
1612 1613 1614 1615 1616 1617 1618 1619

int qemuMonitorGetVirtType(qemuMonitorPtr mon,
                           int *virtType)
{
    int ret;
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
1620 1621
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONGetVirtType(mon, virtType);
    else
        ret = qemuMonitorTextGetVirtType(mon, virtType);
    return ret;
}


1633
int qemuMonitorGetBalloonInfo(qemuMonitorPtr mon,
1634
                              unsigned long long *currmem)
1635
{
D
Daniel P. Berrange 已提交
1636
    int ret;
1637
    VIR_DEBUG("mon=%p", mon);
1638 1639

    if (!mon) {
1640 1641
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1642 1643
        return -1;
    }
1644

D
Daniel P. Berrange 已提交
1645 1646 1647 1648 1649
    if (mon->json)
        ret = qemuMonitorJSONGetBalloonInfo(mon, currmem);
    else
        ret = qemuMonitorTextGetBalloonInfo(mon, currmem);
    return ret;
1650 1651 1652
}


1653 1654 1655 1656 1657
int qemuMonitorGetMemoryStats(qemuMonitorPtr mon,
                              virDomainMemoryStatPtr stats,
                              unsigned int nr_stats)
{
    int ret;
1658
    VIR_DEBUG("mon=%p stats=%p nstats=%u", mon, stats, nr_stats);
1659 1660

    if (!mon) {
1661 1662
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1663 1664
        return -1;
    }
1665

1666
    if (mon->json) {
1667
        ignore_value(qemuMonitorFindBalloonObjectPath(mon, "/"));
1668 1669 1670 1671
        mon->ballooninit = true;
        ret = qemuMonitorJSONGetMemoryStats(mon, mon->balloonpath,
                                            stats, nr_stats);
    } else {
1672
        ret = qemuMonitorTextGetMemoryStats(mon, stats, nr_stats);
1673
    }
1674 1675 1676
    return ret;
}

1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694
int qemuMonitorSetMemoryStatsPeriod(qemuMonitorPtr mon,
                                    int period)
{
    int ret = -1;
    VIR_DEBUG("mon=%p period=%d", mon, period);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

1695
    if (qemuMonitorFindBalloonObjectPath(mon, "/") == 0) {
1696 1697 1698 1699 1700 1701 1702
        ret = qemuMonitorJSONSetMemoryStatsPeriod(mon, mon->balloonpath,
                                                  period);
    }
    mon->ballooninit = true;
    return ret;
}

1703 1704 1705 1706 1707 1708
int
qemuMonitorBlockIOStatusToError(const char *status)
{
    int st = qemuMonitorBlockIOStatusTypeFromString(status);

    if (st < 0) {
1709 1710
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("unknown block IO status: %s"), status);
1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728
        return -1;
    }

    switch ((qemuMonitorBlockIOStatus) st) {
    case QEMU_MONITOR_BLOCK_IO_STATUS_OK:
        return VIR_DOMAIN_DISK_ERROR_NONE;
    case QEMU_MONITOR_BLOCK_IO_STATUS_FAILED:
        return VIR_DOMAIN_DISK_ERROR_UNSPEC;
    case QEMU_MONITOR_BLOCK_IO_STATUS_NOSPACE:
        return VIR_DOMAIN_DISK_ERROR_NO_SPACE;

    /* unreachable */
    case QEMU_MONITOR_BLOCK_IO_STATUS_LAST:
        break;
    }
    return -1;
}

1729 1730
virHashTablePtr
qemuMonitorGetBlockInfo(qemuMonitorPtr mon)
1731 1732
{
    int ret;
1733 1734 1735
    virHashTablePtr table;

    VIR_DEBUG("mon=%p", mon);
1736 1737

    if (!mon) {
1738 1739
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1740
        return NULL;
1741 1742
    }

E
Eric Blake 已提交
1743
    if (!(table = virHashCreate(32, virHashValueFree)))
1744 1745
        return NULL;

1746
    if (mon->json)
1747
        ret = qemuMonitorJSONGetBlockInfo(mon, table);
1748
    else
1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760
        ret = qemuMonitorTextGetBlockInfo(mon, table);

    if (ret < 0) {
        virHashFree(table);
        return NULL;
    }

    return table;
}

struct qemuDomainDiskInfo *
qemuMonitorBlockInfoLookup(virHashTablePtr blockInfo,
E
Eric Blake 已提交
1761
                           const char *dev)
1762 1763 1764
{
    struct qemuDomainDiskInfo *info;

E
Eric Blake 已提交
1765
    VIR_DEBUG("blockInfo=%p dev=%s", blockInfo, NULLSTR(dev));
1766

E
Eric Blake 已提交
1767
    if (!(info = virHashLookup(blockInfo, dev))) {
1768 1769
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("cannot find info for device '%s'"),
E
Eric Blake 已提交
1770
                       NULLSTR(dev));
1771 1772 1773
    }

    return info;
1774
}
1775

1776
int qemuMonitorGetBlockStatsInfo(qemuMonitorPtr mon,
1777
                                 const char *dev_name,
1778 1779
                                 long long *rd_req,
                                 long long *rd_bytes,
1780
                                 long long *rd_total_times,
1781 1782
                                 long long *wr_req,
                                 long long *wr_bytes,
1783 1784 1785
                                 long long *wr_total_times,
                                 long long *flush_req,
                                 long long *flush_total_times,
1786 1787
                                 long long *errs)
{
D
Daniel P. Berrange 已提交
1788
    int ret;
1789
    VIR_DEBUG("mon=%p dev=%s", mon, dev_name);
1790 1791

    if (!mon) {
1792 1793
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1794 1795
        return -1;
    }
1796

D
Daniel P. Berrange 已提交
1797
    if (mon->json)
1798
        ret = qemuMonitorJSONGetBlockStatsInfo(mon, dev_name,
D
Daniel P. Berrange 已提交
1799
                                               rd_req, rd_bytes,
1800
                                               rd_total_times,
D
Daniel P. Berrange 已提交
1801
                                               wr_req, wr_bytes,
1802 1803 1804
                                               wr_total_times,
                                               flush_req,
                                               flush_total_times,
D
Daniel P. Berrange 已提交
1805 1806
                                               errs);
    else
1807
        ret = qemuMonitorTextGetBlockStatsInfo(mon, dev_name,
D
Daniel P. Berrange 已提交
1808
                                               rd_req, rd_bytes,
1809
                                               rd_total_times,
D
Daniel P. Berrange 已提交
1810
                                               wr_req, wr_bytes,
1811 1812 1813
                                               wr_total_times,
                                               flush_req,
                                               flush_total_times,
D
Daniel P. Berrange 已提交
1814 1815
                                               errs);
    return ret;
1816 1817
}

1818 1819 1820

/* Creates a hash table in 'ret_stats' with all block stats.
 * Returns <0 on error, 0 on success.
1821 1822 1823
 */
int
qemuMonitorGetAllBlockStatsInfo(qemuMonitorPtr mon,
1824 1825
                                virHashTablePtr *ret_stats,
                                bool backingChain)
1826
{
1827
    VIR_DEBUG("mon=%p ret_stats=%p, backing=%d", mon, ret_stats, backingChain);
1828

1829
    if (!mon->json) {
1830 1831 1832 1833 1834
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("unable to query all block stats with this QEMU"));
        return -1;
    }

1835
    return qemuMonitorJSONGetAllBlockStatsInfo(mon, ret_stats, backingChain);
1836 1837
}

1838 1839

/* Updates "stats" to fill virtual and physical size of the image */
1840 1841 1842 1843
int
qemuMonitorBlockStatsUpdateCapacity(qemuMonitorPtr mon,
                                    virHashTablePtr stats,
                                    bool backingChain)
1844
{
1845
    VIR_DEBUG("mon=%p, stats=%p, backing=%d", mon, stats, backingChain);
1846 1847 1848 1849 1850 1851 1852

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("block capacity/size info requires JSON monitor"));
        return -1;
    }

1853
    return qemuMonitorJSONBlockStatsUpdateCapacity(mon, stats, backingChain);
1854 1855 1856
}


1857 1858 1859 1860 1861 1862 1863 1864 1865 1866
/* Return 0 and update @nparams with the number of block stats
 * QEMU supports if success. Return -1 if failure.
 */
int qemuMonitorGetBlockStatsParamsNumber(qemuMonitorPtr mon,
                                         int *nparams)
{
    int ret;
    VIR_DEBUG("mon=%p nparams=%p", mon, nparams);

    if (!mon) {
1867 1868
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONGetBlockStatsParamsNumber(mon, nparams);
    else
        ret = qemuMonitorTextGetBlockStatsParamsNumber(mon, nparams);

    return ret;
}

1880
int qemuMonitorGetBlockExtent(qemuMonitorPtr mon,
1881
                              const char *dev_name,
1882 1883 1884
                              unsigned long long *extent)
{
    int ret;
1885
    VIR_DEBUG("mon=%p, dev_name=%s", mon, dev_name);
1886 1887

    if (mon->json)
1888
        ret = qemuMonitorJSONGetBlockExtent(mon, dev_name, extent);
1889
    else
1890
        ret = qemuMonitorTextGetBlockExtent(mon, dev_name, extent);
1891 1892 1893 1894

    return ret;
}

1895 1896 1897 1898 1899
int qemuMonitorBlockResize(qemuMonitorPtr mon,
                           const char *device,
                           unsigned long long size)
{
    int ret;
1900
    VIR_DEBUG("mon=%p, device=%s size=%llu", mon, device, size);
1901 1902 1903 1904 1905 1906 1907 1908

    if (mon->json)
        ret = qemuMonitorJSONBlockResize(mon, device, size);
    else
        ret = qemuMonitorTextBlockResize(mon, device, size);

    return ret;
}
1909 1910 1911 1912

int qemuMonitorSetVNCPassword(qemuMonitorPtr mon,
                              const char *password)
{
D
Daniel P. Berrange 已提交
1913
    int ret;
1914
    VIR_DEBUG("mon=%p, password=%p",
1915 1916 1917
          mon, password);

    if (!mon) {
1918 1919
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1920 1921
        return -1;
    }
1922

1923 1924 1925
    if (!password)
        password = "";

D
Daniel P. Berrange 已提交
1926 1927 1928 1929 1930
    if (mon->json)
        ret = qemuMonitorJSONSetVNCPassword(mon, password);
    else
        ret = qemuMonitorTextSetVNCPassword(mon, password);
    return ret;
1931 1932
}

1933 1934 1935 1936 1937 1938 1939 1940
static const char* qemuMonitorTypeToProtocol(int type)
{
    switch (type) {
    case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
        return "vnc";
    case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
        return "spice";
    default:
1941 1942 1943
        virReportError(VIR_ERR_INVALID_ARG,
                       _("unsupported protocol type %s"),
                       virDomainGraphicsTypeToString(type));
1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
        return NULL;
    }
}

/* Returns -2 if not supported with this monitor connection */
int qemuMonitorSetPassword(qemuMonitorPtr mon,
                           int type,
                           const char *password,
                           const char *action_if_connected)
{
    const char *protocol = qemuMonitorTypeToProtocol(type);
    int ret;

    if (!protocol)
        return -1;

1960
    VIR_DEBUG("mon=%p, protocol=%s, password=%p, action_if_connected=%s",
1961 1962 1963
          mon, protocol, password, action_if_connected);

    if (!mon) {
1964 1965
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
        return -1;
    }

    if (!password)
        password = "";

    if (!action_if_connected)
        action_if_connected = "keep";

    if (mon->json)
        ret = qemuMonitorJSONSetPassword(mon, protocol, password, action_if_connected);
    else
        ret = qemuMonitorTextSetPassword(mon, protocol, password, action_if_connected);
    return ret;
}

int qemuMonitorExpirePassword(qemuMonitorPtr mon,
                              int type,
                              const char *expire_time)
{
    const char *protocol = qemuMonitorTypeToProtocol(type);
    int ret;

    if (!protocol)
        return -1;

1992
    VIR_DEBUG("mon=%p, protocol=%s, expire_time=%s",
1993 1994 1995
          mon, protocol, expire_time);

    if (!mon) {
1996 1997
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
        return -1;
    }

    if (!expire_time)
        expire_time = "now";

    if (mon->json)
        ret = qemuMonitorJSONExpirePassword(mon, protocol, expire_time);
    else
        ret = qemuMonitorTextExpirePassword(mon, protocol, expire_time);
    return ret;
}
2010 2011 2012 2013

int qemuMonitorSetBalloon(qemuMonitorPtr mon,
                          unsigned long newmem)
{
D
Daniel P. Berrange 已提交
2014
    int ret;
2015
    VIR_DEBUG("mon=%p newmem=%lu", mon, newmem);
2016 2017

    if (!mon) {
2018 2019
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2020 2021
        return -1;
    }
2022

D
Daniel P. Berrange 已提交
2023 2024 2025 2026 2027
    if (mon->json)
        ret = qemuMonitorJSONSetBalloon(mon, newmem);
    else
        ret = qemuMonitorTextSetBalloon(mon, newmem);
    return ret;
2028 2029
}

2030

2031
int qemuMonitorSetCPU(qemuMonitorPtr mon, int cpu, bool online)
2032 2033
{
    int ret;
2034
    VIR_DEBUG("mon=%p cpu=%d online=%d", mon, cpu, online);
2035 2036

    if (!mon) {
2037 2038
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2039 2040
        return -1;
    }
2041 2042 2043 2044 2045 2046 2047 2048 2049

    if (mon->json)
        ret = qemuMonitorJSONSetCPU(mon, cpu, online);
    else
        ret = qemuMonitorTextSetCPU(mon, cpu, online);
    return ret;
}


2050
int qemuMonitorEjectMedia(qemuMonitorPtr mon,
2051
                          const char *dev_name,
2052
                          bool force)
2053
{
D
Daniel P. Berrange 已提交
2054
    int ret;
2055
    VIR_DEBUG("mon=%p dev_name=%s force=%d", mon, dev_name, force);
2056 2057

    if (!mon) {
2058 2059
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2060 2061
        return -1;
    }
2062

D
Daniel P. Berrange 已提交
2063
    if (mon->json)
2064
        ret = qemuMonitorJSONEjectMedia(mon, dev_name, force);
D
Daniel P. Berrange 已提交
2065
    else
2066
        ret = qemuMonitorTextEjectMedia(mon, dev_name, force);
D
Daniel P. Berrange 已提交
2067
    return ret;
2068 2069 2070 2071
}


int qemuMonitorChangeMedia(qemuMonitorPtr mon,
2072
                           const char *dev_name,
2073 2074
                           const char *newmedia,
                           const char *format)
2075
{
D
Daniel P. Berrange 已提交
2076
    int ret;
2077 2078
    VIR_DEBUG("mon=%p dev_name=%s newmedia=%s format=%s",
          mon, dev_name, newmedia, format);
2079 2080

    if (!mon) {
2081 2082
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2083 2084
        return -1;
    }
2085

D
Daniel P. Berrange 已提交
2086
    if (mon->json)
2087
        ret = qemuMonitorJSONChangeMedia(mon, dev_name, newmedia, format);
D
Daniel P. Berrange 已提交
2088
    else
2089
        ret = qemuMonitorTextChangeMedia(mon, dev_name, newmedia, format);
D
Daniel P. Berrange 已提交
2090
    return ret;
2091 2092 2093 2094 2095 2096 2097 2098
}


int qemuMonitorSaveVirtualMemory(qemuMonitorPtr mon,
                                 unsigned long long offset,
                                 size_t length,
                                 const char *path)
{
D
Daniel P. Berrange 已提交
2099
    int ret;
2100
    VIR_DEBUG("mon=%p offset=%llu length=%zu path=%s",
2101 2102 2103
          mon, offset, length, path);

    if (!mon) {
2104 2105
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2106 2107
        return -1;
    }
2108

D
Daniel P. Berrange 已提交
2109 2110 2111 2112 2113
    if (mon->json)
        ret = qemuMonitorJSONSaveVirtualMemory(mon, offset, length, path);
    else
        ret = qemuMonitorTextSaveVirtualMemory(mon, offset, length, path);
    return ret;
2114 2115 2116 2117 2118 2119 2120
}

int qemuMonitorSavePhysicalMemory(qemuMonitorPtr mon,
                                  unsigned long long offset,
                                  size_t length,
                                  const char *path)
{
D
Daniel P. Berrange 已提交
2121
    int ret;
2122
    VIR_DEBUG("mon=%p offset=%llu length=%zu path=%s",
2123 2124 2125
          mon, offset, length, path);

    if (!mon) {
2126 2127
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2128 2129
        return -1;
    }
2130

D
Daniel P. Berrange 已提交
2131 2132 2133 2134 2135
    if (mon->json)
        ret = qemuMonitorJSONSavePhysicalMemory(mon, offset, length, path);
    else
        ret = qemuMonitorTextSavePhysicalMemory(mon, offset, length, path);
    return ret;
2136 2137 2138 2139 2140 2141
}


int qemuMonitorSetMigrationSpeed(qemuMonitorPtr mon,
                                 unsigned long bandwidth)
{
D
Daniel P. Berrange 已提交
2142
    int ret;
2143
    VIR_DEBUG("mon=%p bandwidth=%lu", mon, bandwidth);
2144 2145

    if (!mon) {
2146 2147
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2148 2149
        return -1;
    }
2150

2151 2152 2153 2154 2155 2156 2157
    if (bandwidth > QEMU_DOMAIN_MIG_BANDWIDTH_MAX) {
        virReportError(VIR_ERR_OVERFLOW,
                       _("bandwidth must be less than %llu"),
                       QEMU_DOMAIN_MIG_BANDWIDTH_MAX + 1ULL);
        return -1;
    }

D
Daniel P. Berrange 已提交
2158 2159 2160 2161 2162
    if (mon->json)
        ret = qemuMonitorJSONSetMigrationSpeed(mon, bandwidth);
    else
        ret = qemuMonitorTextSetMigrationSpeed(mon, bandwidth);
    return ret;
2163 2164
}

2165 2166 2167 2168 2169

int qemuMonitorSetMigrationDowntime(qemuMonitorPtr mon,
                                    unsigned long long downtime)
{
    int ret;
2170
    VIR_DEBUG("mon=%p downtime=%llu", mon, downtime);
2171 2172

    if (!mon) {
2173 2174
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2175 2176
        return -1;
    }
2177 2178 2179 2180 2181 2182 2183 2184 2185

    if (mon->json)
        ret = qemuMonitorJSONSetMigrationDowntime(mon, downtime);
    else
        ret = qemuMonitorTextSetMigrationDowntime(mon, downtime);
    return ret;
}


2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228
int
qemuMonitorGetMigrationCacheSize(qemuMonitorPtr mon,
                                 unsigned long long *cacheSize)
{
    VIR_DEBUG("mon=%p cacheSize=%p", mon, cacheSize);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetMigrationCacheSize(mon, cacheSize);
}

int
qemuMonitorSetMigrationCacheSize(qemuMonitorPtr mon,
                                 unsigned long long cacheSize)
{
    VIR_DEBUG("mon=%p cacheSize=%llu", mon, cacheSize);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONSetMigrationCacheSize(mon, cacheSize);
}


2229
int qemuMonitorGetMigrationStatus(qemuMonitorPtr mon,
2230
                                  qemuMonitorMigrationStatusPtr status)
2231
{
D
Daniel P. Berrange 已提交
2232
    int ret;
2233
    VIR_DEBUG("mon=%p", mon);
2234 2235

    if (!mon) {
2236 2237
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2238 2239
        return -1;
    }
2240

D
Daniel P. Berrange 已提交
2241
    if (mon->json)
2242
        ret = qemuMonitorJSONGetMigrationStatus(mon, status);
D
Daniel P. Berrange 已提交
2243
    else
2244
        ret = qemuMonitorTextGetMigrationStatus(mon, status);
D
Daniel P. Berrange 已提交
2245
    return ret;
2246 2247 2248
}


2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272
int qemuMonitorGetSpiceMigrationStatus(qemuMonitorPtr mon,
                                       bool *spice_migrated)
{
    int ret;
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (mon->json) {
        ret = qemuMonitorJSONGetSpiceMigrationStatus(mon, spice_migrated);
    } else {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return ret;
}


E
Eric Blake 已提交
2273 2274 2275 2276 2277
int qemuMonitorMigrateToFd(qemuMonitorPtr mon,
                           unsigned int flags,
                           int fd)
{
    int ret;
2278
    VIR_DEBUG("mon=%p fd=%d flags=%x",
E
Eric Blake 已提交
2279 2280 2281
          mon, fd, flags);

    if (!mon) {
2282 2283
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
E
Eric Blake 已提交
2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296
        return -1;
    }

    if (qemuMonitorSendFileHandle(mon, "migrate", fd) < 0)
        return -1;

    if (mon->json)
        ret = qemuMonitorJSONMigrate(mon, flags, "fd:migrate");
    else
        ret = qemuMonitorTextMigrate(mon, flags, "fd:migrate");

    if (ret < 0) {
        if (qemuMonitorCloseFileHandle(mon, "migrate") < 0)
2297
            VIR_WARN("failed to close migration handle");
E
Eric Blake 已提交
2298 2299 2300 2301 2302 2303
    }

    return ret;
}


2304
int qemuMonitorMigrateToHost(qemuMonitorPtr mon,
2305
                             unsigned int flags,
2306
                             const char *protocol,
2307 2308 2309
                             const char *hostname,
                             int port)
{
D
Daniel P. Berrange 已提交
2310
    int ret;
2311
    char *uri = NULL;
2312
    VIR_DEBUG("mon=%p hostname=%s port=%d flags=%x",
2313
          mon, hostname, port, flags);
2314 2315

    if (!mon) {
2316 2317
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2318 2319
        return -1;
    }
2320

2321

2322
    if (virAsprintf(&uri, "%s:%s:%d", protocol, hostname, port) < 0)
2323 2324
        return -1;

D
Daniel P. Berrange 已提交
2325
    if (mon->json)
2326
        ret = qemuMonitorJSONMigrate(mon, flags, uri);
D
Daniel P. Berrange 已提交
2327
    else
2328 2329 2330
        ret = qemuMonitorTextMigrate(mon, flags, uri);

    VIR_FREE(uri);
D
Daniel P. Berrange 已提交
2331
    return ret;
2332 2333 2334 2335
}


int qemuMonitorMigrateToCommand(qemuMonitorPtr mon,
2336
                                unsigned int flags,
2337
                                const char * const *argv)
2338
{
2339 2340 2341
    char *argstr;
    char *dest = NULL;
    int ret = -1;
2342
    VIR_DEBUG("mon=%p argv=%p flags=%x",
2343
          mon, argv, flags);
2344 2345

    if (!mon) {
2346 2347
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2348 2349
        return -1;
    }
2350

2351
    argstr = virArgvToString(argv);
2352
    if (!argstr)
2353 2354
        goto cleanup;

2355
    if (virAsprintf(&dest, "exec:%s", argstr) < 0)
2356 2357
        goto cleanup;

D
Daniel P. Berrange 已提交
2358
    if (mon->json)
2359
        ret = qemuMonitorJSONMigrate(mon, flags, dest);
D
Daniel P. Berrange 已提交
2360
    else
2361 2362
        ret = qemuMonitorTextMigrate(mon, flags, dest);

2363
 cleanup:
2364 2365
    VIR_FREE(argstr);
    VIR_FREE(dest);
2366 2367 2368 2369
    return ret;
}

int qemuMonitorMigrateToFile(qemuMonitorPtr mon,
2370
                             unsigned int flags,
2371 2372 2373 2374
                             const char * const *argv,
                             const char *target,
                             unsigned long long offset)
{
2375 2376 2377 2378
    char *argstr;
    char *dest = NULL;
    int ret = -1;
    char *safe_target = NULL;
2379
    virBuffer buf = VIR_BUFFER_INITIALIZER;
2380
    VIR_DEBUG("mon=%p argv=%p target=%s offset=%llu flags=%x",
2381
          mon, argv, target, offset, flags);
2382 2383

    if (!mon) {
2384 2385
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2386 2387
        return -1;
    }
2388 2389

    if (offset % QEMU_MONITOR_MIGRATE_TO_FILE_BS) {
2390 2391 2392
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("file offset must be a multiple of %llu"),
                       QEMU_MONITOR_MIGRATE_TO_FILE_BS);
2393 2394 2395
        return -1;
    }

2396
    argstr = virArgvToString(argv);
2397
    if (!argstr)
2398 2399 2400
        goto cleanup;

    /* Migrate to file */
2401
    virBufferEscapeShell(&buf, target);
2402
    if (virBufferCheckError(&buf) < 0)
2403
        goto cleanup;
2404
    safe_target = virBufferContentAndReset(&buf);
2405 2406 2407 2408 2409 2410 2411

    /* Two dd processes, sharing the same stdout, are necessary to
     * allow starting at an alignment of 512, but without wasting
     * padding to get to the larger alignment useful for speed.  Use
     * <> redirection to avoid truncating a regular file.  */
    if (virAsprintf(&dest, "exec:" VIR_WRAPPER_SHELL_PREFIX "%s | "
                    "{ dd bs=%llu seek=%llu if=/dev/null && "
2412
                    "dd ibs=%llu obs=%llu; } 1<>%s" VIR_WRAPPER_SHELL_SUFFIX,
2413 2414 2415
                    argstr, QEMU_MONITOR_MIGRATE_TO_FILE_BS,
                    offset / QEMU_MONITOR_MIGRATE_TO_FILE_BS,
                    QEMU_MONITOR_MIGRATE_TO_FILE_TRANSFER_SIZE,
2416
                    QEMU_MONITOR_MIGRATE_TO_FILE_TRANSFER_SIZE,
2417
                    safe_target) < 0)
2418 2419
        goto cleanup;

2420
    if (mon->json)
2421
        ret = qemuMonitorJSONMigrate(mon, flags, dest);
2422
    else
2423 2424
        ret = qemuMonitorTextMigrate(mon, flags, dest);

2425
 cleanup:
2426 2427 2428
    VIR_FREE(safe_target);
    VIR_FREE(argstr);
    VIR_FREE(dest);
D
Daniel P. Berrange 已提交
2429
    return ret;
2430 2431 2432
}

int qemuMonitorMigrateToUnix(qemuMonitorPtr mon,
2433
                             unsigned int flags,
2434 2435
                             const char *unixfile)
{
2436 2437
    char *dest = NULL;
    int ret = -1;
2438
    VIR_DEBUG("mon=%p, unixfile=%s flags=%x",
2439
          mon, unixfile, flags);
2440 2441

    if (!mon) {
2442 2443
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2444 2445
        return -1;
    }
2446

2447
    if (virAsprintf(&dest, "unix:%s", unixfile) < 0)
2448 2449
        return -1;

D
Daniel P. Berrange 已提交
2450
    if (mon->json)
2451
        ret = qemuMonitorJSONMigrate(mon, flags, dest);
D
Daniel P. Berrange 已提交
2452
    else
2453 2454 2455
        ret = qemuMonitorTextMigrate(mon, flags, dest);

    VIR_FREE(dest);
D
Daniel P. Berrange 已提交
2456
    return ret;
2457 2458 2459 2460
}

int qemuMonitorMigrateCancel(qemuMonitorPtr mon)
{
D
Daniel P. Berrange 已提交
2461
    int ret;
2462
    VIR_DEBUG("mon=%p", mon);
2463 2464

    if (!mon) {
2465 2466
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2467 2468
        return -1;
    }
2469

D
Daniel P. Berrange 已提交
2470 2471 2472 2473 2474
    if (mon->json)
        ret = qemuMonitorJSONMigrateCancel(mon);
    else
        ret = qemuMonitorTextMigrateCancel(mon);
    return ret;
2475 2476
}

2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497
/**
 * Returns 1 if @capability is supported, 0 if it's not, or -1 on error.
 */
int qemuMonitorGetDumpGuestMemoryCapability(qemuMonitorPtr mon,
                                            const char *capability)
{
    VIR_DEBUG("mon=%p capability=%s", mon, capability);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    /* No capability is supported without JSON monitor */
    if (!mon->json)
        return 0;

    return qemuMonitorJSONGetDumpGuestMemoryCapability(mon, capability);
}

2498
int
2499
qemuMonitorDumpToFd(qemuMonitorPtr mon, int fd, const char *dumpformat)
2500 2501
{
    int ret;
2502
    VIR_DEBUG("mon=%p fd=%d dumpformat=%s", mon, fd, dumpformat);
2503 2504

    if (!mon) {
2505 2506
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2507 2508 2509 2510 2511 2512 2513
        return -1;
    }

    if (!mon->json) {
        /* We don't have qemuMonitorTextDump(), so we should check mon->json
         * here.
         */
2514
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
2515
                       _("dump-guest-memory is not supported in text mode"));
2516 2517 2518 2519 2520 2521
        return -1;
    }

    if (qemuMonitorSendFileHandle(mon, "dump", fd) < 0)
        return -1;

2522
    ret = qemuMonitorJSONDump(mon, "fd:dump", dumpformat);
2523 2524 2525 2526 2527 2528 2529 2530

    if (ret < 0) {
        if (qemuMonitorCloseFileHandle(mon, "dump") < 0)
            VIR_WARN("failed to close dumping handle");
    }

    return ret;
}
2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561

int qemuMonitorGraphicsRelocate(qemuMonitorPtr mon,
                                int type,
                                const char *hostname,
                                int port,
                                int tlsPort,
                                const char *tlsSubject)
{
    int ret;
    VIR_DEBUG("mon=%p type=%d hostname=%s port=%d tlsPort=%d tlsSubject=%s",
              mon, type, hostname, port, tlsPort, NULLSTR(tlsSubject));

    if (mon->json)
        ret = qemuMonitorJSONGraphicsRelocate(mon,
                                              type,
                                              hostname,
                                              port,
                                              tlsPort,
                                              tlsSubject);
    else
        ret = qemuMonitorTextGraphicsRelocate(mon,
                                              type,
                                              hostname,
                                              port,
                                              tlsPort,
                                              tlsSubject);

    return ret;
}


2562 2563 2564
int qemuMonitorAddUSBDisk(qemuMonitorPtr mon,
                          const char *path)
{
D
Daniel P. Berrange 已提交
2565
    int ret;
2566
    VIR_DEBUG("mon=%p path=%s", mon, path);
2567 2568

    if (!mon) {
2569 2570
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2571 2572
        return -1;
    }
2573

D
Daniel P. Berrange 已提交
2574 2575 2576 2577 2578
    if (mon->json)
        ret = qemuMonitorJSONAddUSBDisk(mon, path);
    else
        ret = qemuMonitorTextAddUSBDisk(mon, path);
    return ret;
2579 2580 2581 2582 2583 2584 2585
}


int qemuMonitorAddUSBDeviceExact(qemuMonitorPtr mon,
                                 int bus,
                                 int dev)
{
D
Daniel P. Berrange 已提交
2586
    int ret;
2587
    VIR_DEBUG("mon=%p bus=%d dev=%d", mon, bus, dev);
2588 2589

    if (!mon) {
2590 2591
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2592 2593
        return -1;
    }
2594

D
Daniel P. Berrange 已提交
2595 2596 2597 2598 2599
    if (mon->json)
        ret = qemuMonitorJSONAddUSBDeviceExact(mon, bus, dev);
    else
        ret = qemuMonitorTextAddUSBDeviceExact(mon, bus, dev);
    return ret;
2600 2601 2602 2603 2604 2605
}

int qemuMonitorAddUSBDeviceMatch(qemuMonitorPtr mon,
                                 int vendor,
                                 int product)
{
D
Daniel P. Berrange 已提交
2606
    int ret;
2607
    VIR_DEBUG("mon=%p vendor=%d product=%d",
2608 2609 2610
          mon, vendor, product);

    if (!mon) {
2611 2612
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2613 2614
        return -1;
    }
2615

D
Daniel P. Berrange 已提交
2616 2617 2618 2619 2620
    if (mon->json)
        ret = qemuMonitorJSONAddUSBDeviceMatch(mon, vendor, product);
    else
        ret = qemuMonitorTextAddUSBDeviceMatch(mon, vendor, product);
    return ret;
2621 2622 2623 2624
}


int qemuMonitorAddPCIHostDevice(qemuMonitorPtr mon,
2625 2626
                                virDevicePCIAddress *hostAddr,
                                virDevicePCIAddress *guestAddr)
2627
{
D
Daniel P. Berrange 已提交
2628
    int ret;
2629
    VIR_DEBUG("mon=%p domain=%d bus=%d slot=%d function=%d",
2630
          mon,
2631
          hostAddr->domain, hostAddr->bus, hostAddr->slot, hostAddr->function);
2632

2633
    if (!mon) {
2634 2635
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2636 2637 2638
        return -1;
    }

D
Daniel P. Berrange 已提交
2639
    if (mon->json)
2640
        ret = qemuMonitorJSONAddPCIHostDevice(mon, hostAddr, guestAddr);
D
Daniel P. Berrange 已提交
2641
    else
2642
        ret = qemuMonitorTextAddPCIHostDevice(mon, hostAddr, guestAddr);
D
Daniel P. Berrange 已提交
2643
    return ret;
2644 2645 2646 2647 2648 2649
}


int qemuMonitorAddPCIDisk(qemuMonitorPtr mon,
                          const char *path,
                          const char *bus,
2650
                          virDevicePCIAddress *guestAddr)
2651
{
D
Daniel P. Berrange 已提交
2652
    int ret;
2653
    VIR_DEBUG("mon=%p path=%s bus=%s",
2654 2655 2656
          mon, path, bus);

    if (!mon) {
2657 2658
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2659 2660
        return -1;
    }
2661

D
Daniel P. Berrange 已提交
2662
    if (mon->json)
2663
        ret = qemuMonitorJSONAddPCIDisk(mon, path, bus, guestAddr);
D
Daniel P. Berrange 已提交
2664
    else
2665
        ret = qemuMonitorTextAddPCIDisk(mon, path, bus, guestAddr);
D
Daniel P. Berrange 已提交
2666
    return ret;
2667 2668 2669 2670 2671
}


int qemuMonitorAddPCINetwork(qemuMonitorPtr mon,
                             const char *nicstr,
2672
                             virDevicePCIAddress *guestAddr)
2673
{
D
Daniel P. Berrange 已提交
2674
    int ret;
2675
    VIR_DEBUG("mon=%p nicstr=%s", mon, nicstr);
2676 2677

    if (!mon) {
2678 2679
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2680 2681
        return -1;
    }
2682

D
Daniel P. Berrange 已提交
2683
    if (mon->json)
2684
        ret = qemuMonitorJSONAddPCINetwork(mon, nicstr, guestAddr);
D
Daniel P. Berrange 已提交
2685
    else
2686
        ret = qemuMonitorTextAddPCINetwork(mon, nicstr, guestAddr);
D
Daniel P. Berrange 已提交
2687
    return ret;
2688 2689 2690 2691
}


int qemuMonitorRemovePCIDevice(qemuMonitorPtr mon,
2692
                               virDevicePCIAddress *guestAddr)
2693
{
D
Daniel P. Berrange 已提交
2694
    int ret;
2695
    VIR_DEBUG("mon=%p domain=%d bus=%d slot=%d function=%d",
2696
          mon, guestAddr->domain, guestAddr->bus,
2697
          guestAddr->slot, guestAddr->function);
2698

2699
    if (!mon) {
2700 2701
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2702 2703 2704
        return -1;
    }

D
Daniel P. Berrange 已提交
2705
    if (mon->json)
2706
        ret = qemuMonitorJSONRemovePCIDevice(mon, guestAddr);
D
Daniel P. Berrange 已提交
2707
    else
2708
        ret = qemuMonitorTextRemovePCIDevice(mon, guestAddr);
D
Daniel P. Berrange 已提交
2709
    return ret;
2710 2711 2712 2713 2714 2715 2716
}


int qemuMonitorSendFileHandle(qemuMonitorPtr mon,
                              const char *fdname,
                              int fd)
{
D
Daniel P. Berrange 已提交
2717
    int ret;
2718
    VIR_DEBUG("mon=%p, fdname=%s fd=%d",
2719 2720 2721
          mon, fdname, fd);

    if (!mon) {
2722 2723
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2724 2725
        return -1;
    }
2726

2727
    if (fd < 0) {
2728 2729
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("fd must be valid"));
2730 2731 2732 2733
        return -1;
    }

    if (!mon->hasSendFD) {
2734
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
2735 2736
                       _("qemu is not using a unix socket monitor, "
                         "cannot send fd %s"), fdname);
2737 2738 2739
        return -1;
    }

D
Daniel P. Berrange 已提交
2740 2741 2742 2743 2744
    if (mon->json)
        ret = qemuMonitorJSONSendFileHandle(mon, fdname, fd);
    else
        ret = qemuMonitorTextSendFileHandle(mon, fdname, fd);
    return ret;
2745 2746 2747 2748 2749 2750
}


int qemuMonitorCloseFileHandle(qemuMonitorPtr mon,
                               const char *fdname)
{
2751 2752 2753
    int ret = -1;
    virErrorPtr error;

2754
    VIR_DEBUG("mon=%p fdname=%s",
2755 2756
          mon, fdname);

2757 2758
    error = virSaveLastError();

2759
    if (!mon) {
2760 2761
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2762
        goto cleanup;
2763
    }
2764

D
Daniel P. Berrange 已提交
2765 2766 2767 2768
    if (mon->json)
        ret = qemuMonitorJSONCloseFileHandle(mon, fdname);
    else
        ret = qemuMonitorTextCloseFileHandle(mon, fdname);
2769

2770
 cleanup:
2771 2772 2773 2774
    if (error) {
        virSetError(error);
        virFreeError(error);
    }
D
Daniel P. Berrange 已提交
2775
    return ret;
2776 2777 2778
}


2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841
/* Add the open file descriptor FD into the non-negative set FDSET.
 * If NAME is present, it will be passed along for logging purposes.
 * Returns the counterpart fd that qemu received, or -1 on error.  */
int
qemuMonitorAddFd(qemuMonitorPtr mon, int fdset, int fd, const char *name)
{
    int ret = -1;
    VIR_DEBUG("mon=%p, fdset=%d, fd=%d, name=%s",
              mon, fdset, fd, NULLSTR(name));

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (fd < 0 || fdset < 0) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("fd and fdset must be valid"));
        return -1;
    }

    if (!mon->hasSendFD) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
                       _("qemu is not using a unix socket monitor, "
                         "cannot send fd %s"), NULLSTR(name));
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONAddFd(mon, fdset, fd, name);
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("add fd requires JSON monitor"));
    return ret;
}


/* Remove one of qemu's fds from the given FDSET, or if FD is
 * negative, remove the entire set.  Preserve any previous error on
 * entry.  Returns 0 on success, -1 on error.  */
int
qemuMonitorRemoveFd(qemuMonitorPtr mon, int fdset, int fd)
{
    int ret = -1;
    virErrorPtr error;

    VIR_DEBUG("mon=%p, fdset=%d, fd=%d", mon, fdset, fd);

    error = virSaveLastError();

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        goto cleanup;
    }

    if (mon->json)
        ret = qemuMonitorJSONRemoveFd(mon, fdset, fd);
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("remove fd requires JSON monitor"));

2842
 cleanup:
2843 2844 2845 2846 2847 2848 2849 2850
    if (error) {
        virSetError(error);
        virFreeError(error);
    }
    return ret;
}


2851
int qemuMonitorAddHostNetwork(qemuMonitorPtr mon,
2852
                              const char *netstr,
2853 2854
                              int *tapfd, char **tapfdName, int tapfdSize,
                              int *vhostfd, char **vhostfdName, int vhostfdSize)
2855
{
2856
    int ret = -1;
2857
    size_t i = 0, j = 0;
2858 2859 2860 2861 2862

    VIR_DEBUG("mon=%p netstr=%s tapfd=%p tapfdName=%p tapfdSize=%d "
              "vhostfd=%p vhostfdName=%p vhostfdSize=%d",
              mon, netstr, tapfd, tapfdName, tapfdSize,
              vhostfd, vhostfdName, vhostfdSize);
2863 2864

    if (!mon) {
2865 2866
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2867 2868
        return -1;
    }
2869

2870 2871 2872 2873 2874 2875 2876
    for (i = 0; i < tapfdSize; i++) {
        if (qemuMonitorSendFileHandle(mon, tapfdName[i], tapfd[i]) < 0)
            goto cleanup;
    }
    for (j = 0; j < vhostfdSize; j++) {
        if (qemuMonitorSendFileHandle(mon, vhostfdName[j], vhostfd[j]) < 0)
            goto cleanup;
2877 2878
    }

D
Daniel P. Berrange 已提交
2879
    if (mon->json)
2880
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
2881
                       _("JSON monitor should be using AddNetdev"));
D
Daniel P. Berrange 已提交
2882 2883
    else
        ret = qemuMonitorTextAddHostNetwork(mon, netstr);
2884

2885
 cleanup:
2886
    if (ret < 0) {
2887 2888 2889 2890 2891 2892 2893 2894
        while (i--) {
            if (qemuMonitorCloseFileHandle(mon, tapfdName[i]) < 0)
                VIR_WARN("failed to close device handle '%s'", tapfdName[i]);
        }
        while (j--) {
            if (qemuMonitorCloseFileHandle(mon, vhostfdName[j]) < 0)
                VIR_WARN("failed to close device handle '%s'", vhostfdName[j]);
        }
2895 2896
    }

D
Daniel P. Berrange 已提交
2897
    return ret;
2898 2899 2900 2901 2902 2903 2904
}


int qemuMonitorRemoveHostNetwork(qemuMonitorPtr mon,
                                 int vlan,
                                 const char *netname)
{
G
Guido Günther 已提交
2905
    int ret = -1;
2906
    VIR_DEBUG("mon=%p netname=%s",
2907 2908 2909
          mon, netname);

    if (!mon) {
2910 2911
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2912 2913
        return -1;
    }
2914

D
Daniel P. Berrange 已提交
2915
    if (mon->json)
2916
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
2917
                       _("JSON monitor should be using RemoveNetdev"));
D
Daniel P. Berrange 已提交
2918 2919 2920
    else
        ret = qemuMonitorTextRemoveHostNetwork(mon, vlan, netname);
    return ret;
2921
}
2922

2923 2924

int qemuMonitorAddNetdev(qemuMonitorPtr mon,
2925
                         const char *netdevstr,
2926 2927
                         int *tapfd, char **tapfdName, int tapfdSize,
                         int *vhostfd, char **vhostfdName, int vhostfdSize)
2928
{
2929
    int ret = -1;
2930
    size_t i = 0, j = 0;
2931 2932 2933 2934

    VIR_DEBUG("mon=%p netdevstr=%s tapfd=%p tapfdName=%p tapfdSize=%d"
              "vhostfd=%p vhostfdName=%p vhostfdSize=%d",
              mon, netdevstr, tapfd, tapfdName, tapfdSize,
2935
              vhostfd, vhostfdName, vhostfdSize);
2936 2937

    if (!mon) {
2938 2939
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2940 2941
        return -1;
    }
2942

2943 2944 2945 2946 2947 2948 2949
    for (i = 0; i < tapfdSize; i++) {
        if (qemuMonitorSendFileHandle(mon, tapfdName[i], tapfd[i]) < 0)
            goto cleanup;
    }
    for (j = 0; j < vhostfdSize; j++) {
        if (qemuMonitorSendFileHandle(mon, vhostfdName[j], vhostfd[j]) < 0)
            goto cleanup;
2950 2951
    }

2952 2953 2954 2955
    if (mon->json)
        ret = qemuMonitorJSONAddNetdev(mon, netdevstr);
    else
        ret = qemuMonitorTextAddNetdev(mon, netdevstr);
2956

2957
 cleanup:
2958
    if (ret < 0) {
2959 2960 2961 2962 2963 2964 2965 2966
        while (i--) {
            if (qemuMonitorCloseFileHandle(mon, tapfdName[i]) < 0)
                VIR_WARN("failed to close device handle '%s'", tapfdName[i]);
        }
        while (j--) {
            if (qemuMonitorCloseFileHandle(mon, vhostfdName[j]) < 0)
                VIR_WARN("failed to close device handle '%s'", vhostfdName[j]);
        }
2967 2968
    }

2969 2970 2971 2972 2973 2974 2975
    return ret;
}

int qemuMonitorRemoveNetdev(qemuMonitorPtr mon,
                            const char *alias)
{
    int ret;
2976
    VIR_DEBUG("mon=%p alias=%s",
2977 2978 2979
          mon, alias);

    if (!mon) {
2980 2981
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
2982 2983
        return -1;
    }
2984 2985 2986 2987 2988 2989 2990 2991 2992

    if (mon->json)
        ret = qemuMonitorJSONRemoveNetdev(mon, alias);
    else
        ret = qemuMonitorTextRemoveNetdev(mon, alias);
    return ret;
}


2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018
int
qemuMonitorQueryRxFilter(qemuMonitorPtr mon, const char *alias,
                         virNetDevRxFilterPtr *filter)
{
    int ret = -1;
    VIR_DEBUG("mon=%p alias=%s filter=%p",
              mon, alias, filter);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }


    VIR_DEBUG("mon=%p, alias=%s", mon, alias);

    if (mon->json)
        ret = qemuMonitorJSONQueryRxFilter(mon, alias, filter);
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("query-rx-filter requires JSON monitor"));
    return ret;
}


3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029
static void
qemuMonitorChardevInfoFree(void *data,
                           const void *name ATTRIBUTE_UNUSED)
{
    qemuMonitorChardevInfoPtr info = data;

    VIR_FREE(info->ptyPath);
    VIR_FREE(info);
}


3030 3031 3032
int
qemuMonitorGetChardevInfo(qemuMonitorPtr mon,
                          virHashTablePtr *retinfo)
3033
{
3034
    int ret;
3035 3036 3037
    virHashTablePtr info = NULL;

    VIR_DEBUG("mon=%p retinfo=%p", mon, retinfo);
3038 3039

    if (!mon) {
3040 3041
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3042
        goto error;
3043
    }
3044

3045
    if (!(info = virHashCreate(10, qemuMonitorChardevInfoFree)))
3046 3047
        goto error;

3048
    if (mon->json)
3049
        ret = qemuMonitorJSONGetChardevInfo(mon, info);
3050
    else
3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062
        ret = qemuMonitorTextGetChardevInfo(mon, info);

    if (ret < 0)
        goto error;

    *retinfo = info;
    return 0;

 error:
    virHashFree(info);
    *retinfo = NULL;
    return -1;
3063
}
3064 3065 3066 3067


int qemuMonitorAttachPCIDiskController(qemuMonitorPtr mon,
                                       const char *bus,
3068
                                       virDevicePCIAddress *guestAddr)
3069
{
3070
    VIR_DEBUG("mon=%p type=%s", mon, bus);
3071 3072
    int ret;

3073
    if (!mon) {
3074 3075
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3076 3077 3078
        return -1;
    }

3079 3080 3081 3082 3083 3084 3085
    if (mon->json)
        ret = qemuMonitorJSONAttachPCIDiskController(mon, bus, guestAddr);
    else
        ret = qemuMonitorTextAttachPCIDiskController(mon, bus, guestAddr);

    return ret;
}
3086 3087 3088 3089


int qemuMonitorAttachDrive(qemuMonitorPtr mon,
                           const char *drivestr,
3090
                           virDevicePCIAddress *controllerAddr,
3091 3092
                           virDomainDeviceDriveAddress *driveAddr)
{
3093
    VIR_DEBUG("mon=%p drivestr=%s domain=%d bus=%d slot=%d function=%d",
3094
          mon, drivestr,
3095 3096
          controllerAddr->domain, controllerAddr->bus,
          controllerAddr->slot, controllerAddr->function);
G
Guido Günther 已提交
3097
    int ret = 1;
3098

3099
    if (!mon) {
3100 3101
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3102 3103 3104
        return -1;
    }

3105
    if (mon->json)
3106
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3107
                       _("JSON monitor should be using AddDrive"));
3108 3109 3110 3111 3112
    else
        ret = qemuMonitorTextAttachDrive(mon, drivestr, controllerAddr, driveAddr);

    return ret;
}
3113 3114 3115 3116

int qemuMonitorGetAllPCIAddresses(qemuMonitorPtr mon,
                                  qemuMonitorPCIAddress **addrs)
{
3117
    VIR_DEBUG("mon=%p addrs=%p", mon, addrs);
3118 3119
    int ret;

3120
    if (!mon) {
3121 3122
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3123 3124 3125
        return -1;
    }

3126 3127 3128 3129 3130 3131
    if (mon->json)
        ret = qemuMonitorJSONGetAllPCIAddresses(mon, addrs);
    else
        ret = qemuMonitorTextGetAllPCIAddresses(mon, addrs);
    return ret;
}
3132

3133 3134
int qemuMonitorDriveDel(qemuMonitorPtr mon,
                        const char *drivestr)
3135
{
3136
    VIR_DEBUG("mon=%p drivestr=%s", mon, drivestr);
3137 3138 3139
    int ret;

    if (!mon) {
3140 3141
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3142 3143 3144 3145
        return -1;
    }

    if (mon->json)
3146
        ret = qemuMonitorJSONDriveDel(mon, drivestr);
3147
    else
3148
        ret = qemuMonitorTextDriveDel(mon, drivestr);
3149 3150 3151
    return ret;
}

3152
int qemuMonitorDelDevice(qemuMonitorPtr mon,
3153
                         const char *devalias)
3154
{
3155
    VIR_DEBUG("mon=%p devalias=%s", mon, devalias);
3156 3157
    int ret;

3158
    if (!mon) {
3159 3160
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3161 3162 3163
        return -1;
    }

3164
    if (mon->json)
3165
        ret = qemuMonitorJSONDelDevice(mon, devalias);
3166
    else
3167
        ret = qemuMonitorTextDelDevice(mon, devalias);
3168 3169 3170
    return ret;
}

3171

3172 3173 3174 3175
int qemuMonitorAddDeviceWithFd(qemuMonitorPtr mon,
                               const char *devicestr,
                               int fd,
                               const char *fdname)
3176
{
3177 3178
    VIR_DEBUG("mon=%p device=%s fd=%d fdname=%s", mon, devicestr, fd,
              NULLSTR(fdname));
3179 3180
    int ret;

3181
    if (!mon) {
3182 3183
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3184 3185 3186
        return -1;
    }

3187 3188 3189
    if (fd >= 0 && qemuMonitorSendFileHandle(mon, fdname, fd) < 0)
        return -1;

3190 3191 3192 3193
    if (mon->json)
        ret = qemuMonitorJSONAddDevice(mon, devicestr);
    else
        ret = qemuMonitorTextAddDevice(mon, devicestr);
3194 3195 3196 3197 3198 3199

    if (ret < 0 && fd >= 0) {
        if (qemuMonitorCloseFileHandle(mon, fdname) < 0)
            VIR_WARN("failed to close device handle '%s'", fdname);
    }

3200 3201 3202
    return ret;
}

3203 3204 3205 3206 3207 3208
int qemuMonitorAddDevice(qemuMonitorPtr mon,
                         const char *devicestr)
{
    return qemuMonitorAddDeviceWithFd(mon, devicestr, -1, NULL);
}

3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256

/**
 * qemuMonitorAddObject:
 * @mon: Pointer to monitor object
 * @type: Type name of object to add
 * @objalias: Alias of the new object
 * @props: Optional arguments for the given type. The object is consumed and
 *         should not be referenced by the caller after this function returns.
 *
 * Returns 0 on success -1 on error.
 */
int
qemuMonitorAddObject(qemuMonitorPtr mon,
                     const char *type,
                     const char *objalias,
                     virJSONValuePtr props)
{
    VIR_DEBUG("mon=%p type=%s objalias=%s props=%p",
              mon, type, objalias, props);
    int ret = -1;

    if (mon->json)
        ret = qemuMonitorJSONAddObject(mon, type, objalias, props);
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("object adding requires JSON monitor"));

    return ret;
}


int
qemuMonitorDelObject(qemuMonitorPtr mon,
                     const char *objalias)
{
    VIR_DEBUG("mon=%p objalias=%s", mon, objalias);
    int ret = -1;

    if (mon->json)
        ret = qemuMonitorJSONDelObject(mon, objalias);
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("object deletion requires JSON monitor"));

    return ret;
}


3257 3258 3259
int qemuMonitorAddDrive(qemuMonitorPtr mon,
                        const char *drivestr)
{
3260
    VIR_DEBUG("mon=%p drive=%s", mon, drivestr);
3261 3262
    int ret;

3263
    if (!mon) {
3264 3265
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3266 3267 3268
        return -1;
    }

3269 3270 3271 3272 3273 3274
    if (mon->json)
        ret = qemuMonitorJSONAddDrive(mon, drivestr);
    else
        ret = qemuMonitorTextAddDrive(mon, drivestr);
    return ret;
}
3275 3276 3277 3278 3279 3280


int qemuMonitorSetDrivePassphrase(qemuMonitorPtr mon,
                                  const char *alias,
                                  const char *passphrase)
{
3281
    VIR_DEBUG("mon=%p alias=%s passphrase=%p(value hidden)", mon, alias, passphrase);
3282 3283
    int ret;

3284
    if (!mon) {
3285 3286
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3287 3288 3289
        return -1;
    }

3290 3291 3292 3293 3294 3295
    if (mon->json)
        ret = qemuMonitorJSONSetDrivePassphrase(mon, alias, passphrase);
    else
        ret = qemuMonitorTextSetDrivePassphrase(mon, alias, passphrase);
    return ret;
}
C
Chris Lalancette 已提交
3296 3297 3298 3299 3300

int qemuMonitorCreateSnapshot(qemuMonitorPtr mon, const char *name)
{
    int ret;

E
Eric Blake 已提交
3301
    VIR_DEBUG("mon=%p, name=%s", mon, name);
C
Chris Lalancette 已提交
3302

3303
    if (!mon) {
3304 3305
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3306 3307 3308
        return -1;
    }

C
Chris Lalancette 已提交
3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319
    if (mon->json)
        ret = qemuMonitorJSONCreateSnapshot(mon, name);
    else
        ret = qemuMonitorTextCreateSnapshot(mon, name);
    return ret;
}

int qemuMonitorLoadSnapshot(qemuMonitorPtr mon, const char *name)
{
    int ret;

E
Eric Blake 已提交
3320
    VIR_DEBUG("mon=%p, name=%s", mon, name);
C
Chris Lalancette 已提交
3321

3322
    if (!mon) {
3323 3324
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3325 3326 3327
        return -1;
    }

C
Chris Lalancette 已提交
3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338
    if (mon->json)
        ret = qemuMonitorJSONLoadSnapshot(mon, name);
    else
        ret = qemuMonitorTextLoadSnapshot(mon, name);
    return ret;
}

int qemuMonitorDeleteSnapshot(qemuMonitorPtr mon, const char *name)
{
    int ret;

E
Eric Blake 已提交
3339
    VIR_DEBUG("mon=%p, name=%s", mon, name);
C
Chris Lalancette 已提交
3340

3341
    if (!mon) {
3342 3343
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3344 3345 3346
        return -1;
    }

C
Chris Lalancette 已提交
3347 3348 3349 3350 3351 3352
    if (mon->json)
        ret = qemuMonitorJSONDeleteSnapshot(mon, name);
    else
        ret = qemuMonitorTextDeleteSnapshot(mon, name);
    return ret;
}
3353

3354 3355 3356 3357
/* Use the snapshot_blkdev command to convert the existing file for
 * device into a read-only backing file of a new qcow2 image located
 * at file.  */
int
3358
qemuMonitorDiskSnapshot(qemuMonitorPtr mon, virJSONValuePtr actions,
3359 3360
                        const char *device, const char *file,
                        const char *format, bool reuse)
3361
{
3362
    int ret = -1;
3363

3364 3365
    VIR_DEBUG("mon=%p, actions=%p, device=%s, file=%s, format=%s, reuse=%d",
              mon, actions, device, file, format, reuse);
3366 3367

    if (!mon) {
3368 3369
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3370 3371 3372
        return -1;
    }

3373
    if (mon->json)
3374 3375
        ret = qemuMonitorJSONDiskSnapshot(mon, actions, device, file, format,
                                          reuse);
3376
    else
3377
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3378
                       _("disk snapshot requires JSON monitor"));
3379 3380 3381
    return ret;
}

3382
/* Start a drive-mirror block job.  bandwidth is in bytes/sec.  */
3383 3384 3385
int
qemuMonitorDriveMirror(qemuMonitorPtr mon,
                       const char *device, const char *file,
3386
                       const char *format, unsigned long long bandwidth,
3387
                       unsigned int granularity, unsigned long long buf_size,
3388 3389 3390 3391
                       unsigned int flags)
{
    int ret = -1;

3392
    VIR_DEBUG("mon=%p, device=%s, file=%s, format=%s, bandwidth=%lld, "
3393 3394 3395
              "granularity=%#x, buf_size=%lld, flags=%x",
              mon, device, file, NULLSTR(format), bandwidth, granularity,
              buf_size, flags);
3396 3397

    if (mon->json)
3398
        ret = qemuMonitorJSONDriveMirror(mon, device, file, format, bandwidth,
3399
                                         granularity, buf_size, flags);
3400
    else
3401
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3402 3403 3404 3405
                       _("drive-mirror requires JSON monitor"));
    return ret;
}

3406 3407 3408 3409 3410 3411 3412 3413
/* Use the transaction QMP command to run atomic snapshot commands.  */
int
qemuMonitorTransaction(qemuMonitorPtr mon, virJSONValuePtr actions)
{
    int ret = -1;

    VIR_DEBUG("mon=%p, actions=%p", mon, actions);

3414
    if (mon->json)
3415
        ret = qemuMonitorJSONTransaction(mon, actions);
3416
    else
3417
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3418
                       _("transaction requires JSON monitor"));
3419 3420 3421
    return ret;
}

3422
/* Start a block-commit block job.  bandwidth is in bytes/sec.  */
3423 3424 3425
int
qemuMonitorBlockCommit(qemuMonitorPtr mon, const char *device,
                       const char *top, const char *base,
3426
                       const char *backingName,
3427
                       unsigned long long bandwidth)
3428 3429 3430
{
    int ret = -1;

3431 3432
    VIR_DEBUG("mon=%p, device=%s, top=%s, base=%s, backingName=%s, "
              "bandwidth=%llu",
3433
              mon, device, top, base, NULLSTR(backingName), bandwidth);
3434 3435

    if (mon->json)
3436
        ret = qemuMonitorJSONBlockCommit(mon, device, top, base,
3437
                                         backingName, bandwidth);
3438
    else
3439
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3440 3441 3442 3443
                       _("block-commit requires JSON monitor"));
    return ret;
}

3444 3445 3446 3447 3448 3449 3450 3451

/* Probe whether active commits are supported by a given qemu binary. */
bool
qemuMonitorSupportsActiveCommit(qemuMonitorPtr mon)
{
    if (!mon->json)
        return false;

3452
    return qemuMonitorJSONBlockCommit(mon, "bogus", NULL, NULL, NULL, 0) == -2;
3453 3454 3455
}


3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469
/* Use the block-job-complete monitor command to pivot a block copy
 * job.  */
int
qemuMonitorDrivePivot(qemuMonitorPtr mon, const char *device,
                      const char *file, const char *format)
{
    int ret = -1;

    VIR_DEBUG("mon=%p, device=%s, file=%s, format=%s",
              mon, device, file, NULLSTR(format));

    if (mon->json)
        ret = qemuMonitorJSONDrivePivot(mon, device, file, format);
    else
3470
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3471 3472 3473 3474
                       _("drive pivot requires JSON monitor"));
    return ret;
}

3475 3476 3477 3478
int qemuMonitorArbitraryCommand(qemuMonitorPtr mon,
                                const char *cmd,
                                char **reply,
                                bool hmp)
3479 3480 3481
{
    int ret;

3482
    VIR_DEBUG("mon=%p, cmd=%s, reply=%p, hmp=%d", mon, cmd, reply, hmp);
3483 3484

    if (mon->json)
3485
        ret = qemuMonitorJSONArbitraryCommand(mon, cmd, reply, hmp);
3486 3487 3488 3489
    else
        ret = qemuMonitorTextArbitraryCommand(mon, cmd, reply);
    return ret;
}
3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503


int qemuMonitorInjectNMI(qemuMonitorPtr mon)
{
    int ret;

    VIR_DEBUG("mon=%p", mon);

    if (mon->json)
        ret = qemuMonitorJSONInjectNMI(mon);
    else
        ret = qemuMonitorTextInjectNMI(mon);
    return ret;
}
3504

3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521
int qemuMonitorSendKey(qemuMonitorPtr mon,
                       unsigned int holdtime,
                       unsigned int *keycodes,
                       unsigned int nkeycodes)
{
    int ret;

    VIR_DEBUG("mon=%p, holdtime=%u, nkeycodes=%u",
              mon, holdtime, nkeycodes);

    if (mon->json)
        ret = qemuMonitorJSONSendKey(mon, holdtime, keycodes, nkeycodes);
    else
        ret = qemuMonitorTextSendKey(mon, holdtime, keycodes, nkeycodes);
    return ret;
}

3522 3523 3524 3525 3526 3527 3528 3529
int qemuMonitorScreendump(qemuMonitorPtr mon,
                          const char *file)
{
    int ret;

    VIR_DEBUG("mon=%p, file=%s", mon, file);

    if (!mon) {
E
Eric Blake 已提交
3530
        virReportError(VIR_ERR_INVALID_ARG, "%s",
3531
                       _("monitor must not be NULL"));
3532 3533 3534 3535 3536 3537 3538 3539 3540
        return -1;
    }

    if (mon->json)
        ret = qemuMonitorJSONScreendump(mon, file);
    else
        ret = qemuMonitorTextScreendump(mon, file);
    return ret;
}
3541

3542
/* bandwidth is in bytes/sec */
3543 3544 3545 3546 3547
int
qemuMonitorBlockJob(qemuMonitorPtr mon,
                    const char *device,
                    const char *base,
                    const char *backingName,
3548
                    unsigned long long bandwidth,
3549 3550
                    qemuMonitorBlockJobCmd mode,
                    bool modern)
3551
{
E
Eric Blake 已提交
3552
    int ret = -1;
3553

3554
    VIR_DEBUG("mon=%p, device=%s, base=%s, backingName=%s, bandwidth=%lluB, "
3555
              "mode=%o, modern=%d",
3556
              mon, device, NULLSTR(base), NULLSTR(backingName),
3557
              bandwidth, mode, modern);
3558

3559
    if (mon->json)
3560
        ret = qemuMonitorJSONBlockJob(mon, device, base, backingName,
3561
                                      bandwidth, mode, modern);
3562
    else
3563
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3564
                       _("block jobs require JSON monitor"));
3565 3566
    return ret;
}
3567

3568 3569 3570 3571

int
qemuMonitorBlockJobInfo(qemuMonitorPtr mon,
                        const char *device,
3572 3573
                        virDomainBlockJobInfoPtr info,
                        unsigned long long *bandwidth)
3574 3575 3576
{
    int ret = -1;

3577 3578
    VIR_DEBUG("mon=%p, device=%s, info=%p, bandwidth=%p",
              mon, device, info, bandwidth);
3579 3580

    if (mon->json)
3581
        ret = qemuMonitorJSONBlockJobInfo(mon, device, info, bandwidth);
3582 3583 3584 3585 3586 3587 3588
    else
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("block jobs require JSON monitor"));
    return ret;
}


3589 3590
int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
                                  const char *device,
3591 3592
                                  virDomainBlockIoTuneInfoPtr info,
                                  bool supportMaxOptions)
3593 3594 3595 3596 3597 3598
{
    int ret;

    VIR_DEBUG("mon=%p, device=%p, info=%p", mon, device, info);

    if (mon->json) {
3599
        ret = qemuMonitorJSONSetBlockIoThrottle(mon, device, info, supportMaxOptions);
3600 3601 3602 3603 3604 3605 3606 3607
    } else {
        ret = qemuMonitorTextSetBlockIoThrottle(mon, device, info);
    }
    return ret;
}

int qemuMonitorGetBlockIoThrottle(qemuMonitorPtr mon,
                                  const char *device,
3608 3609
                                  virDomainBlockIoTuneInfoPtr reply,
                                  bool supportMaxOptions)
3610 3611 3612 3613 3614 3615
{
    int ret;

    VIR_DEBUG("mon=%p, device=%p, reply=%p", mon, device, reply);

    if (mon->json) {
3616
        ret = qemuMonitorJSONGetBlockIoThrottle(mon, device, reply, supportMaxOptions);
3617 3618 3619 3620 3621 3622 3623
    } else {
        ret = qemuMonitorTextGetBlockIoThrottle(mon, device, reply);
    }
    return ret;
}


3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666
int qemuMonitorVMStatusToPausedReason(const char *status)
{
    int st;

    if (!status)
        return VIR_DOMAIN_PAUSED_UNKNOWN;

    if ((st = qemuMonitorVMStatusTypeFromString(status)) < 0) {
        VIR_WARN("Qemu reported unknown VM status: '%s'", status);
        return VIR_DOMAIN_PAUSED_UNKNOWN;
    }

    switch ((qemuMonitorVMStatus) st) {
    case QEMU_MONITOR_VM_STATUS_DEBUG:
    case QEMU_MONITOR_VM_STATUS_INTERNAL_ERROR:
    case QEMU_MONITOR_VM_STATUS_RESTORE_VM:
        return VIR_DOMAIN_PAUSED_UNKNOWN;

    case QEMU_MONITOR_VM_STATUS_INMIGRATE:
    case QEMU_MONITOR_VM_STATUS_POSTMIGRATE:
    case QEMU_MONITOR_VM_STATUS_FINISH_MIGRATE:
        return VIR_DOMAIN_PAUSED_MIGRATION;

    case QEMU_MONITOR_VM_STATUS_IO_ERROR:
        return VIR_DOMAIN_PAUSED_IOERROR;

    case QEMU_MONITOR_VM_STATUS_PAUSED:
    case QEMU_MONITOR_VM_STATUS_PRELAUNCH:
        return VIR_DOMAIN_PAUSED_USER;

    case QEMU_MONITOR_VM_STATUS_RUNNING:
        VIR_WARN("Qemu reports the guest is paused but status is 'running'");
        return VIR_DOMAIN_PAUSED_UNKNOWN;

    case QEMU_MONITOR_VM_STATUS_SAVE_VM:
        return VIR_DOMAIN_PAUSED_SAVE;

    case QEMU_MONITOR_VM_STATUS_SHUTDOWN:
        return VIR_DOMAIN_PAUSED_SHUTTING_DOWN;

    case QEMU_MONITOR_VM_STATUS_WATCHDOG:
        return VIR_DOMAIN_PAUSED_WATCHDOG;

3667
    case QEMU_MONITOR_VM_STATUS_GUEST_PANICKED:
3668
        return VIR_DOMAIN_PAUSED_CRASHED;
3669

3670 3671 3672 3673 3674 3675
    /* unreachable from this point on */
    case QEMU_MONITOR_VM_STATUS_LAST:
        ;
    }
    return VIR_DOMAIN_PAUSED_UNKNOWN;
}
3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688


int qemuMonitorOpenGraphics(qemuMonitorPtr mon,
                            const char *protocol,
                            int fd,
                            const char *fdname,
                            bool skipauth)
{
    VIR_DEBUG("mon=%p protocol=%s fd=%d fdname=%s skipauth=%d",
              mon, protocol, fd, NULLSTR(fdname), skipauth);
    int ret;

    if (!mon) {
3689 3690
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708
        return -1;
    }

    if (qemuMonitorSendFileHandle(mon, fdname, fd) < 0)
        return -1;

    if (mon->json)
        ret = qemuMonitorJSONOpenGraphics(mon, protocol, fdname, skipauth);
    else
        ret = qemuMonitorTextOpenGraphics(mon, protocol, fdname, skipauth);

    if (ret < 0) {
        if (qemuMonitorCloseFileHandle(mon, fdname) < 0)
            VIR_WARN("failed to close device handle '%s'", fdname);
    }

    return ret;
}
3709 3710 3711 3712 3713 3714

int qemuMonitorSystemWakeup(qemuMonitorPtr mon)
{
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
3715 3716
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
3717 3718 3719 3720
        return -1;
    }

    if (!mon->json) {
3721
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3722
                       _("JSON monitor is required"));
3723 3724 3725 3726 3727
        return -1;
    }

    return qemuMonitorJSONSystemWakeup(mon);
}
3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744

int qemuMonitorGetVersion(qemuMonitorPtr mon,
                          int *major,
                          int *minor,
                          int *micro,
                          char **package)
{
    VIR_DEBUG("mon=%p major=%p minor=%p micro=%p package=%p",
              mon, major, minor, micro, package);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3745
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3746 3747 3748 3749 3750 3751
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetVersion(mon, major, minor, micro, package);
}
3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765

int qemuMonitorGetMachines(qemuMonitorPtr mon,
                           qemuMonitorMachineInfoPtr **machines)
{
    VIR_DEBUG("mon=%p machines=%p",
              mon, machines);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3766
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetMachines(mon, machines);
}

void qemuMonitorMachineInfoFree(qemuMonitorMachineInfoPtr machine)
{
    if (!machine)
        return;
    VIR_FREE(machine->name);
    VIR_FREE(machine->alias);
    VIR_FREE(machine);
}
3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795

int qemuMonitorGetCPUDefinitions(qemuMonitorPtr mon,
                                 char ***cpus)
{
    VIR_DEBUG("mon=%p cpus=%p",
              mon, cpus);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3796
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3797 3798 3799 3800 3801 3802
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetCPUDefinitions(mon, cpus);
}
3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817


int qemuMonitorGetCommands(qemuMonitorPtr mon,
                           char ***commands)
{
    VIR_DEBUG("mon=%p commands=%p",
              mon, commands);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3818
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3819 3820 3821 3822 3823 3824
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetCommands(mon, commands);
}
3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839


int qemuMonitorGetEvents(qemuMonitorPtr mon,
                         char ***events)
{
    VIR_DEBUG("mon=%p events=%p",
              mon, events);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3840
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3841 3842 3843 3844 3845 3846
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetEvents(mon, events);
}
3847 3848


3849 3850 3851 3852 3853
/* Collect the parameters associated with a given command line option.
 * Return count of known parameters or -1 on error.  */
int
qemuMonitorGetCommandLineOptionParameters(qemuMonitorPtr mon,
                                          const char *option,
3854 3855
                                          char ***params,
                                          bool *found)
3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870
{
    VIR_DEBUG("mon=%p option=%s params=%p", mon, option, params);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

3871 3872
    return qemuMonitorJSONGetCommandLineOptionParameters(mon, option,
                                                         params, found);
3873 3874 3875
}


3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889
int qemuMonitorGetKVMState(qemuMonitorPtr mon,
                           bool *enabled,
                           bool *present)
{
    VIR_DEBUG("mon=%p enabled=%p present=%p",
              mon, enabled, present);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3890
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3891 3892 3893 3894 3895 3896 3897 3898
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetKVMState(mon, enabled, present);
}


3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911
int qemuMonitorGetObjectTypes(qemuMonitorPtr mon,
                              char ***types)
{
    VIR_DEBUG("mon=%p types=%p",
              mon, types);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3912
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3913 3914 3915 3916 3917 3918
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetObjectTypes(mon, types);
}
3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934


int qemuMonitorGetObjectProps(qemuMonitorPtr mon,
                              const char *type,
                              char ***props)
{
    VIR_DEBUG("mon=%p type=%s props=%p",
              mon, type, props);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
3935
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3936 3937 3938 3939 3940 3941
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetObjectProps(mon, type, props);
}
3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955


char *qemuMonitorGetTargetArch(qemuMonitorPtr mon)
{
    VIR_DEBUG("mon=%p",
              mon);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return NULL;
    }

    if (!mon->json) {
3956
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
3957 3958 3959 3960 3961 3962
                       _("JSON monitor is required"));
        return NULL;
    }

    return qemuMonitorJSONGetTargetArch(mon);
}
3963 3964


3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984
int
qemuMonitorGetMigrationCapabilities(qemuMonitorPtr mon,
                                    char ***capabilities)
{
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    /* No capability is supported without JSON monitor */
    if (!mon->json)
        return 0;

    return qemuMonitorJSONGetMigrationCapabilities(mon, capabilities);
}


3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006
/**
 * Returns 1 if @capability is supported, 0 if it's not, or -1 on error.
 */
int qemuMonitorGetMigrationCapability(qemuMonitorPtr mon,
                                      qemuMonitorMigrationCaps capability)
{
    VIR_DEBUG("mon=%p capability=%d", mon, capability);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    /* No capability is supported without JSON monitor */
    if (!mon->json)
        return 0;

    return qemuMonitorJSONGetMigrationCapability(mon, capability);
}

int qemuMonitorSetMigrationCapability(qemuMonitorPtr mon,
4007 4008
                                      qemuMonitorMigrationCaps capability,
                                      bool state)
4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023
{
    VIR_DEBUG("mon=%p capability=%d", mon, capability);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

4024
    return qemuMonitorJSONSetMigrationCapability(mon, capability, state);
4025
}
4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047

int qemuMonitorNBDServerStart(qemuMonitorPtr mon,
                              const char *host,
                              unsigned int port)
{
    VIR_DEBUG("mon=%p host=%s port=%u",
              mon, host, port);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONNBDServerStart(mon, host, port);
}
4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069

int qemuMonitorNBDServerAdd(qemuMonitorPtr mon,
                            const char *deviceID,
                            bool writable)
{
    VIR_DEBUG("mon=%p deviceID=%s",
              mon, deviceID);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONNBDServerAdd(mon, deviceID, writable);
}
4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088

int qemuMonitorNBDServerStop(qemuMonitorPtr mon)
{
    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONNBDServerStop(mon);
}
S
Stefan Berger 已提交
4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132


int qemuMonitorGetTPMModels(qemuMonitorPtr mon,
                            char ***tpmmodels)
{
    VIR_DEBUG("mon=%p tpmmodels=%p",
              mon, tpmmodels);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetTPMModels(mon, tpmmodels);
}


int qemuMonitorGetTPMTypes(qemuMonitorPtr mon,
                           char ***tpmtypes)
{
    VIR_DEBUG("mon=%p tpmtypes=%p",
              mon, tpmtypes);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetTPMTypes(mon, tpmtypes);
}
4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153

int qemuMonitorAttachCharDev(qemuMonitorPtr mon,
                             const char *chrID,
                             virDomainChrSourceDefPtr chr)
{
    VIR_DEBUG("mon=%p chrID=%s chr=%p", mon, chrID, chr);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONAttachCharDev(mon, chrID, chr);
}
4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173

int qemuMonitorDetachCharDev(qemuMonitorPtr mon,
                             const char *chrID)
{
    VIR_DEBUG("mon=%p chrID=%s", mon, chrID);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONDetachCharDev(mon, chrID);
}
4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194

int
qemuMonitorGetDeviceAliases(qemuMonitorPtr mon,
                            char ***aliases)
{
    VIR_DEBUG("mon=%p, aliases=%p", mon, aliases);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONGetDeviceAliases(mon, aliases);
}
4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216


/**
 * qemuMonitorSetDomainLog:
 * Set the file descriptor of the open VM log file to report potential
 * early startup errors of qemu.
 *
 * @mon: Monitor object to set the log file reading on
 * @logfd: File descriptor of the already open log file
 */
int
qemuMonitorSetDomainLog(qemuMonitorPtr mon, int logfd)
{
    VIR_FORCE_CLOSE(mon->logfd);
    if (logfd >= 0 &&
        (mon->logfd = dup(logfd)) < 0) {
        virReportSystemError(errno, "%s", _("failed to duplicate log fd"));
        return -1;
    }

    return 0;
}
4217 4218 4219 4220 4221 4222


/**
 * qemuMonitorJSONGetGuestCPU:
 * @mon: Pointer to the monitor
 * @arch: arch of the guest
4223
 * @data: returns the cpu data
4224 4225 4226
 *
 * Retrieve the definition of the guest CPU from a running qemu instance.
 *
4227 4228
 * Returns 0 on success, -2 if the operation is not supported by the guest,
 * -1 on other errors.
4229
 */
4230
int
4231
qemuMonitorGetGuestCPU(qemuMonitorPtr mon,
4232 4233
                       virArch arch,
                       virCPUDataPtr *data)
4234
{
4235
    VIR_DEBUG("mon=%p, arch='%s' data='%p'", mon, virArchToString(arch), data);
4236 4237 4238 4239

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
4240
        return -1;
4241 4242 4243 4244 4245
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
4246
        return -1;
4247 4248
    }

4249 4250 4251
    *data = NULL;

    return qemuMonitorJSONGetGuestCPU(mon, arch, data);
4252
}
4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285

/**
 * qemuMonitorRTCResetReinjection:
 * @mon: Pointer to the monitor
 *
 * Issue rtc-reset-reinjection command.
 * This should be used in cases where guest time is restored via
 * guest agent, so RTC injection is not needed (in fact it would
 * confuse guest's RTC).
 *
 * Returns 0 on success
 *        -1 on error.
 */
int
qemuMonitorRTCResetReinjection(qemuMonitorPtr mon)
{

    VIR_DEBUG("mon=%p", mon);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

    if (!mon->json) {
        virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                       _("JSON monitor is required"));
        return -1;
    }

    return qemuMonitorJSONRTCResetReinjection(mon);
}
4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310

/**
 * qemuMonitorGetIOThreads:
 * @mon: Pointer to the monitor
 * @iothreads: Location to return array of IOThreadInfo data
 *
 * Issue query-iothreads command.
 * Retrieve the list of iothreads defined/running for the machine
 *
 * Returns count of IOThreadInfo structures on success
 *        -1 on error.
 */
int
qemuMonitorGetIOThreads(qemuMonitorPtr mon,
                        qemuMonitorIOThreadsInfoPtr **iothreads)
{

    VIR_DEBUG("mon=%p iothreads=%p", mon, iothreads);

    if (!mon) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("monitor must not be NULL"));
        return -1;
    }

4311
    /* Requires JSON to make the query */
4312
    if (!mon->json) {
4313 4314
        *iothreads = NULL;
        return 0;
4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326
    }

    return qemuMonitorJSONGetIOThreads(mon, iothreads);
}

void qemuMonitorIOThreadsInfoFree(qemuMonitorIOThreadsInfoPtr iothread)
{
    if (!iothread)
        return;
    VIR_FREE(iothread->name);
    VIR_FREE(iothread);
}