C++ VIR_STRDUP函数代码示例

static int testCompareXMLToArgvFiles(const char *xml,
                                     const char *cmdline,
                                     virQEMUCapsPtr extraFlags,
                                     const char *migrateFrom,
                                     int migrateFd,
                                     bool json,
                                     bool expectError)
{
    char *expectargv = NULL;
    int len;
    char *actualargv = NULL;
    int ret = -1;
    virDomainDefPtr vmdef = NULL;
    virDomainChrSourceDef monitor_chr;
    virConnectPtr conn;
    char *log = NULL;
    char *emulator = NULL;
    virCommandPtr cmd = NULL;

    if (!(conn = virGetConnect()))
        goto fail;

    len = virtTestLoadFile(cmdline, &expectargv);
    if (len < 0)
        goto fail;
    if (len && expectargv[len - 1] == '\n')
        expectargv[len - 1] = '\0';

    if (!(vmdef = virDomainDefParseFile(xml, driver.caps, driver.xmlopt,
                                        QEMU_EXPECTED_VIRT_TYPES,
                                        VIR_DOMAIN_DEF_PARSE_INACTIVE)))
        goto fail;

    if (!virDomainDefCheckABIStability(vmdef, vmdef)) {
        fprintf(stderr, "ABI stability check failed on %s", xml);
        goto fail;
    }

    /*
     * For test purposes, we may want to fake emulator's output by providing
     * our own script instead of a real emulator. For this to work we need to
     * specify a relative path in <emulator/> element, which, however, is not
     * allowed by RelaxNG schema for domain XML. To work around it we add an
     * extra '/' at the beginning of relative emulator path so that it looks
     * like, e.g., "/./qemu.sh" or "/../emulator/qemu.sh" instead of
     * "./qemu.sh" or "../emulator/qemu.sh" respectively. The following code
     * detects such paths, strips the extra '/' and makes the path absolute.
     */
    if (vmdef->emulator && STRPREFIX(vmdef->emulator, "/.")) {
        if (VIR_STRDUP(emulator, vmdef->emulator + 1) < 0)
            goto fail;
        VIR_FREE(vmdef->emulator);
        vmdef->emulator = NULL;
        if (virAsprintf(&vmdef->emulator, "%s/qemuxml2argvdata/%s",
                        abs_srcdir, emulator) < 0)
            goto fail;
    }

    if (virQEMUCapsGet(extraFlags, QEMU_CAPS_DOMID))
        vmdef->id = 6;
    else
        vmdef->id = -1;

    memset(&monitor_chr, 0, sizeof(monitor_chr));
    monitor_chr.type = VIR_DOMAIN_CHR_TYPE_UNIX;
    monitor_chr.data.nix.path = (char *)"/tmp/test-monitor";
    monitor_chr.data.nix.listen = true;

    virQEMUCapsSetList(extraFlags,
                       QEMU_CAPS_VNC_COLON,
                       QEMU_CAPS_NO_REBOOT,
                       QEMU_CAPS_NO_ACPI,
                       QEMU_CAPS_LAST);

    if (virQEMUCapsGet(extraFlags, QEMU_CAPS_DEVICE))
        qemuDomainAssignAddresses(vmdef, extraFlags, NULL);

    log = virtTestLogContentAndReset();
    VIR_FREE(log);
    virResetLastError();

    if (vmdef->os.arch == VIR_ARCH_X86_64 ||
        vmdef->os.arch == VIR_ARCH_I686) {
        virQEMUCapsSet(extraFlags, QEMU_CAPS_PCI_MULTIBUS);
    }

    if (qemuAssignDeviceAliases(vmdef, extraFlags) < 0)
        goto fail;

    if (!(cmd = qemuBuildCommandLine(conn, &driver,
                                     vmdef, &monitor_chr, json, extraFlags,
                                     migrateFrom, migrateFd, NULL,
                                     VIR_NETDEV_VPORT_PROFILE_OP_NO_OP,
                                     &testCallbacks, false, false, NULL)))
        goto fail;

    if (!virtTestOOMActive()) {
        if (!!virGetLastError() != expectError) {
            if (virTestGetDebug() && (log = virtTestLogContentAndReset()))
                fprintf(stderr, "\n%s", log);
//.........这里部分代码省略.........

static int
daemonConfigLoadOptions(struct daemonConfig *data,
                        const char *filename,
                        virConfPtr conf)
{
    GET_CONF_UINT(conf, filename, listen_tcp);
    GET_CONF_UINT(conf, filename, listen_tls);
    GET_CONF_STR(conf, filename, tls_port);
    GET_CONF_STR(conf, filename, tcp_port);
    GET_CONF_STR(conf, filename, listen_addr);

    if (remoteConfigGetAuth(conf, "auth_unix_rw", &data->auth_unix_rw, filename) < 0)
        goto error;
#if WITH_POLKIT
    /* Change default perms to be wide-open if PolicyKit is enabled.
     * Admin can always override in config file
     */
    if (data->auth_unix_rw == REMOTE_AUTH_POLKIT) {
        VIR_FREE(data->unix_sock_rw_perms);
        if (VIR_STRDUP(data->unix_sock_rw_perms, "0777") < 0)
            goto error;
    }
#endif
    if (remoteConfigGetAuth(conf, "auth_unix_ro", &data->auth_unix_ro, filename) < 0)
        goto error;
    if (remoteConfigGetAuth(conf, "auth_tcp", &data->auth_tcp, filename) < 0)
        goto error;
    if (remoteConfigGetAuth(conf, "auth_tls", &data->auth_tls, filename) < 0)
        goto error;

    if (remoteConfigGetStringList(conf, "access_drivers",
                                  &data->access_drivers, filename) < 0)
        goto error;

    GET_CONF_STR(conf, filename, unix_sock_group);
    GET_CONF_STR(conf, filename, unix_sock_admin_perms);
    GET_CONF_STR(conf, filename, unix_sock_ro_perms);
    GET_CONF_STR(conf, filename, unix_sock_rw_perms);

    GET_CONF_STR(conf, filename, unix_sock_dir);

    GET_CONF_UINT(conf, filename, mdns_adv);
    GET_CONF_STR(conf, filename, mdns_name);

    GET_CONF_UINT(conf, filename, tls_no_sanity_certificate);
    GET_CONF_UINT(conf, filename, tls_no_verify_certificate);

    GET_CONF_STR(conf, filename, key_file);
    GET_CONF_STR(conf, filename, cert_file);
    GET_CONF_STR(conf, filename, ca_file);
    GET_CONF_STR(conf, filename, crl_file);

    if (remoteConfigGetStringList(conf, "tls_allowed_dn_list",
                                  &data->tls_allowed_dn_list, filename) < 0)
        goto error;


    if (remoteConfigGetStringList(conf, "sasl_allowed_username_list",
                                  &data->sasl_allowed_username_list, filename) < 0)
        goto error;


    GET_CONF_UINT(conf, filename, min_workers);
    GET_CONF_UINT(conf, filename, max_workers);
    GET_CONF_UINT(conf, filename, max_clients);
    GET_CONF_UINT(conf, filename, max_queued_clients);
    GET_CONF_UINT(conf, filename, max_anonymous_clients);

    GET_CONF_UINT(conf, filename, prio_workers);

    GET_CONF_INT(conf, filename, max_requests);
    GET_CONF_UINT(conf, filename, max_client_requests);

    GET_CONF_UINT(conf, filename, admin_min_workers);
    GET_CONF_UINT(conf, filename, admin_max_workers);
    GET_CONF_UINT(conf, filename, admin_max_clients);
    GET_CONF_UINT(conf, filename, admin_max_queued_clients);
    GET_CONF_UINT(conf, filename, admin_max_client_requests);

    GET_CONF_UINT(conf, filename, audit_level);
    GET_CONF_UINT(conf, filename, audit_logging);

    GET_CONF_STR(conf, filename, host_uuid);

    GET_CONF_UINT(conf, filename, log_level);
    GET_CONF_STR(conf, filename, log_filters);
    GET_CONF_STR(conf, filename, log_outputs);

    GET_CONF_INT(conf, filename, keepalive_interval);
    GET_CONF_UINT(conf, filename, keepalive_count);

    GET_CONF_INT(conf, filename, admin_keepalive_interval);
    GET_CONF_UINT(conf, filename, admin_keepalive_count);

    return 0;

 error:
    return -1;
}

static int
virStorageBackendZFSParseVol(virStoragePoolObjPtr pool,
                             virStorageVolDefPtr vol,
                             const char *volume_string)
{
    int ret = -1;
    char **tokens;
    size_t count;
    char **name_tokens = NULL;
    char *vol_name;
    bool is_new_vol = false;
    virStorageVolDefPtr volume = NULL;
    virStoragePoolDefPtr def = virStoragePoolObjGetDef(pool);

    if (!(tokens = virStringSplitCount(volume_string, "\t", 0, &count)))
        return -1;

    if (count != 3)
        goto cleanup;

    if (!(name_tokens = virStringSplit(tokens[0], "/", 2)))
        goto cleanup;

    vol_name = name_tokens[1];

    if (vol == NULL)
        volume = virStorageVolDefFindByName(pool, vol_name);
    else
        volume = vol;

    if (volume == NULL) {
        if (VIR_ALLOC(volume) < 0)
            goto cleanup;

        is_new_vol = true;
        volume->type = VIR_STORAGE_VOL_BLOCK;

        if (VIR_STRDUP(volume->name, vol_name) < 0)
            goto cleanup;
    }

    if (!volume->key && VIR_STRDUP(volume->key, tokens[0]) < 0)
        goto cleanup;

    if (volume->target.path == NULL) {
        if (virAsprintf(&volume->target.path, "%s/%s",
                        def->target.path, volume->name) < 0)
            goto cleanup;
    }

    if (virStrToLong_ull(tokens[1], NULL, 10, &volume->target.capacity) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("malformed volsize reported"));
        goto cleanup;
    }

    if (virStrToLong_ull(tokens[2], NULL, 10, &volume->target.allocation) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("malformed refreservation reported"));
        goto cleanup;
    }

    if (volume->target.allocation < volume->target.capacity)
        volume->target.sparse = true;

    if (is_new_vol && virStoragePoolObjAddVol(pool, volume) < 0)
        goto cleanup;
    volume = NULL;

    ret = 0;
 cleanup:
    virStringListFree(tokens);
    virStringListFree(name_tokens);
    if (is_new_vol)
        virStorageVolDefFree(volume);
    return ret;
}

/**
 * virAdmConnectOpen:
 * @name: uri of the daemon to connect to, NULL for default
 * @flags: bitwise-OR of virConnectFlags; so far the only supported flag is
 *         VIR_CONNECT_NO_ALIASES
 *
 * Opens connection to admin interface of the daemon.
 *
 * Returns @virAdmConnectPtr object or NULL on error
 */
virAdmConnectPtr
virAdmConnectOpen(const char *name, unsigned int flags)
{
    char *sock_path = NULL;
    char *alias = NULL;
    virAdmConnectPtr conn = NULL;
    virConfPtr conf = NULL;
    char *uristr = NULL;

    if (virAdmInitialize() < 0)
        goto error;

    VIR_DEBUG("flags=%x", flags);
    virResetLastError();

    if (!(conn = virAdmConnectNew()))
        goto error;

    if (virConfLoadConfig(&conf, "libvirt-admin.conf") < 0)
        goto error;

    if (name) {
        if (VIR_STRDUP(uristr, name) < 0)
            goto error;
    } else {
        if (virAdmGetDefaultURI(conf, &uristr) < 0)
            goto error;
    }

    if ((!(flags & VIR_CONNECT_NO_ALIASES) &&
         virURIResolveAlias(conf, uristr, &alias) < 0))
        goto error;

    if (alias) {
        VIR_FREE(uristr);
        uristr = alias;
    }

    if (!(conn->uri = virURIParse(uristr)))
        goto error;

    if (!(sock_path = getSocketPath(conn->uri)))
        goto error;

    if (!(conn->privateData = remoteAdminPrivNew(sock_path)))
        goto error;

    conn->privateDataFreeFunc = remoteAdminPrivFree;

    if (remoteAdminConnectOpen(conn, flags) < 0)
        goto error;

 cleanup:
    VIR_FREE(sock_path);
    VIR_FREE(uristr);
    virConfFree(conf);
    return conn;

 error:
    virDispatchError(NULL);
    virObjectUnref(conn);
    conn = NULL;
    goto cleanup;
}

/**
 * virObjectEventCallbackListAddID:
 * @conn: pointer to the connection
 * @cbList: the list
 * @key: the optional key of the object to filter on
 * @filter: optional last-ditch filter callback
 * @filter_opaque: opaque data to pass to @filter
 * @klass: the base event class
 * @eventID: the event ID
 * @callback: the callback to add
 * @opaque: opaque data to pass to @callback
 * @freecb: callback to free @opaque
 * @legacy: true if callback is tracked by function instead of callbackID
 * @callbackID: filled with callback ID
 * @serverFilter: true if server supports object filtering
 *
 * Internal function to add a callback from a virObjectEventCallbackListPtr
 */
static int
virObjectEventCallbackListAddID(virConnectPtr conn,
                                virObjectEventCallbackListPtr cbList,
                                const char *key,
                                virObjectEventCallbackFilter filter,
                                void *filter_opaque,
                                virClassPtr klass,
                                int eventID,
                                virConnectObjectEventGenericCallback callback,
                                void *opaque,
                                virFreeCallback freecb,
                                bool legacy,
                                int *callbackID,
                                bool serverFilter)
{
    virObjectEventCallbackPtr cb;
    int ret = -1;
    int remoteID = -1;

    VIR_DEBUG("conn=%p cblist=%p key=%p filter=%p filter_opaque=%p "
              "klass=%p eventID=%d callback=%p opaque=%p "
              "legacy=%d callbackID=%p serverFilter=%d",
              conn, cbList, key, filter, filter_opaque, klass, eventID,
              callback, opaque, legacy, callbackID, serverFilter);

    /* Check incoming */
    if (!cbList)
        return -1;

    /* If there is no additional filtering, then check if we already
     * have this callback on our list.  */
    if (!filter &&
        virObjectEventCallbackLookup(conn, cbList, key,
                                     klass, eventID, callback, legacy,
                                     serverFilter ? &remoteID : NULL) != -1) {
        virReportError(VIR_ERR_INVALID_ARG, "%s",
                       _("event callback already tracked"));
        return -1;
    }
    /* Allocate new cb */
    if (VIR_ALLOC(cb) < 0)
        goto cleanup;
    cb->conn = virObjectRef(conn);
    *callbackID = cb->callbackID = cbList->nextID++;
    cb->cb = callback;
    cb->klass = klass;
    cb->eventID = eventID;
    cb->opaque = opaque;
    cb->freecb = freecb;
    cb->remoteID = remoteID;

    if (key) {
        cb->key_filter = true;
        if (VIR_STRDUP(cb->key, key) < 0)
            goto cleanup;
    }
    cb->filter = filter;
    cb->filter_opaque = filter_opaque;
    cb->legacy = legacy;

    if (VIR_APPEND_ELEMENT(cbList->callbacks, cbList->count, cb) < 0)
        goto cleanup;

    /* When additional filtering is being done, every client callback
     * is matched to exactly one server callback.  */
    if (filter) {
        ret = 1;
    } else {
        ret = virObjectEventCallbackListCount(conn, cbList, klass, eventID,
                                              key, serverFilter);
        if (serverFilter && remoteID < 0)
            ret++;
    }

 cleanup:
    virObjectEventCallbackFree(cb);
    return ret;
}

static char*
virBhyveTapGetRealDeviceName(char *name)
{
    /* This is an ugly hack, because if we rename
     * tap device to vnet%d, its device name will be
     * still /dev/tap%d, and bhyve tries to open /dev/tap%d,
     * so we have to find the real name
     */
    char *ret = NULL;
    struct dirent *dp;
    char *devpath = NULL;
    int fd;

    DIR *dirp = opendir("/dev");
    if (dirp == NULL) {
        virReportSystemError(errno,
                             _("Failed to opendir path '%s'"),
                             "/dev");
        return NULL;
    }

    while ((dp = readdir(dirp)) != NULL) {
        if (STRPREFIX(dp->d_name, "tap")) {
            struct ifreq ifr;
            if (virAsprintf(&devpath, "/dev/%s", dp->d_name) < 0) {
                goto cleanup;
            }
            if ((fd = open(devpath, O_RDWR)) < 0) {
                virReportSystemError(errno, _("Unable to open '%s'"), devpath);
                goto cleanup;
            }

            if (ioctl(fd, TAPGIFNAME, (void *)&ifr) < 0) {
                virReportSystemError(errno, "%s",
                                     _("Unable to query tap interface name"));
                goto cleanup;
            }

            if (STREQ(name, ifr.ifr_name)) {
                /* we can ignore the return value
                 * because we still have nothing
                 * to do but return;
                 */
                ignore_value(VIR_STRDUP(ret, dp->d_name));
                goto cleanup;
            }

            VIR_FREE(devpath);
            VIR_FORCE_CLOSE(fd);
        }

        errno = 0;
    }

    if (errno != 0)
        virReportSystemError(errno, "%s",
                             _("Unable to iterate over TAP devices"));

cleanup:
    VIR_FREE(devpath);
    VIR_FORCE_CLOSE(fd);
    closedir(dirp);
    return ret;
}

int
vmwareLoadDomains(struct vmware_driver *driver)
{
    virDomainDefPtr vmdef = NULL;
    virDomainObjPtr vm = NULL;
    char *vmxPath = NULL;
    char *vmx = NULL;
    vmwareDomainPtr pDomain;
    char *directoryName = NULL;
    char *fileName = NULL;
    int ret = -1;
    virVMXContext ctx;
    char *outbuf = NULL;
    char *str;
    char *saveptr = NULL;
    virCommandPtr cmd;

    ctx.parseFileName = vmwareCopyVMXFileName;
    ctx.formatFileName = NULL;
    ctx.autodetectSCSIControllerModel = NULL;
    ctx.datacenterPath = NULL;

    cmd = virCommandNewArgList(driver->vmrun, "-T",
                               vmwareDriverTypeToString(driver->type),
                               "list", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    for (str = outbuf; (vmxPath = strtok_r(str, "\n", &saveptr)) != NULL;
        str = NULL) {

        if (vmxPath[0] != '/')
            continue;

        if (virFileReadAll(vmxPath, 10000, &vmx) < 0)
            goto cleanup;

        if ((vmdef =
             virVMXParseConfig(&ctx, driver->xmlopt,
                               driver->caps, vmx)) == NULL) {
            goto cleanup;
        }

        if (!(vm = virDomainObjListAdd(driver->domains, vmdef,
                                       driver->xmlopt,
                                       0, NULL)))
            goto cleanup;

        pDomain = vm->privateData;

        if (VIR_STRDUP(pDomain->vmxPath, vmxPath) < 0)
            goto cleanup;

        vmwareDomainConfigDisplay(pDomain, vmdef);

        if ((vm->def->id = vmwareExtractPid(vmxPath)) < 0)
            goto cleanup;
        /* vmrun list only reports running vms */
        virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
                             VIR_DOMAIN_RUNNING_UNKNOWN);
        vm->persistent = 1;

        virObjectUnlock(vm);

        vmdef = NULL;
        vm = NULL;
    }

    ret = 0;

 cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    virDomainDefFree(vmdef);
    VIR_FREE(directoryName);
    VIR_FREE(fileName);
    VIR_FREE(vmx);
    virObjectUnref(vm);
    return ret;
}

virCapsPtr virQEMUDriverCreateCapabilities(virQEMUDriverPtr driver)
{
    size_t i, j;
    virCapsPtr caps;
    virSecurityManagerPtr *sec_managers = NULL;
    /* Security driver data */
    const char *doi, *model, *lbl, *type;
    virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
    const int virtTypes[] = {VIR_DOMAIN_VIRT_KVM,
                             VIR_DOMAIN_VIRT_QEMU,};

    /* Basic host arch / guest machine capabilities */
    if (!(caps = virQEMUCapsInit(driver->qemuCapsCache)))
        goto error;

    if (virGetHostUUID(caps->host.host_uuid)) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("cannot get the host uuid"));
        goto error;
    }

    /* access sec drivers and create a sec model for each one */
    if (!(sec_managers = virSecurityManagerGetNested(driver->securityManager)))
        goto error;

    /* calculate length */
    for (i = 0; sec_managers[i]; i++)
        ;
    caps->host.nsecModels = i;

    if (VIR_ALLOC_N(caps->host.secModels, caps->host.nsecModels) < 0)
        goto error;

    for (i = 0; sec_managers[i]; i++) {
        virCapsHostSecModelPtr sm = &caps->host.secModels[i];
        doi = virSecurityManagerGetDOI(sec_managers[i]);
        model = virSecurityManagerGetModel(sec_managers[i]);
        if (VIR_STRDUP(sm->model, model) < 0 ||
            VIR_STRDUP(sm->doi, doi) < 0)
            goto error;

        for (j = 0; j < ARRAY_CARDINALITY(virtTypes); j++) {
            lbl = virSecurityManagerGetBaseLabel(sec_managers[i], virtTypes[j]);
            type = virDomainVirtTypeToString(virtTypes[j]);
            if (lbl &&
                virCapabilitiesHostSecModelAddBaseLabel(sm, type, lbl) < 0)
                goto error;
        }

        VIR_DEBUG("Initialized caps for security driver \"%s\" with "
                  "DOI \"%s\"", model, doi);
    }
    VIR_FREE(sec_managers);

    virObjectUnref(cfg);
    return caps;

error:
    VIR_FREE(sec_managers);
    virObjectUnref(caps);
    virObjectUnref(cfg);
    return NULL;
}

static int
testInfoSet(struct testInfo *info,
            const char *name,
            bool different,
            int when)
{
    if (virAsprintf(&info->inName, "%s/qemuxml2argvdata/qemuxml2argv-%s.xml",
                    abs_srcdir, name) < 0)
        goto error;

    if (virtTestLoadFile(info->inName, &info->inFile) < 0)
        goto error;

    if (when & WHEN_INACTIVE) {
        if (different) {
            if (virAsprintf(&info->outInactiveName,
                           "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s-inactive.xml",
                           abs_srcdir, name) < 0)
                goto error;

            if (!virFileExists(info->outInactiveName)) {
                VIR_FREE(info->outInactiveName);

                if (virAsprintf(&info->outInactiveName,
                                "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s.xml",
                                abs_srcdir, name) < 0)
                    goto error;
            }
        } else {
            if (VIR_STRDUP(info->outInactiveName, info->inName) < 0)
                goto error;
        }

        if (virtTestLoadFile(info->outInactiveName, &info->outInactiveFile) < 0)
            goto error;
    }

    if (when & WHEN_ACTIVE) {
        if (different) {
            if (virAsprintf(&info->outActiveName,
                           "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s-active.xml",
                           abs_srcdir, name) < 0)
                goto error;

            if (!virFileExists(info->outActiveName)) {
                VIR_FREE(info->outActiveName);

                if (virAsprintf(&info->outActiveName,
                                "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s.xml",
                                abs_srcdir, name) < 0)
                    goto error;
            }
        } else {
            if (VIR_STRDUP(info->outActiveName, info->inName) < 0)
                goto error;
        }

        if (virtTestLoadFile(info->outActiveName, &info->outActiveFile) < 0)
            goto error;
    }

    return 0;

 error:
    testInfoFree(info);
    return -1;
}

virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
{
    virQEMUDriverConfigPtr cfg;

    if (virQEMUConfigInitialize() < 0)
        return NULL;

    if (!(cfg = virObjectNew(virQEMUDriverConfigClass)))
        return NULL;

    cfg->privileged = privileged;
    cfg->uri = privileged ? "qemu:///system" : "qemu:///session";

    if (privileged) {
        if (virGetUserID(QEMU_USER, &cfg->user) < 0)
            goto error;
        if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
            goto error;
    } else {
        cfg->user = (uid_t)-1;
        cfg->group = (gid_t)-1;
    }
    cfg->dynamicOwnership = privileged;

    cfg->cgroupControllers = -1; /* -1 == auto-detect */

    if (privileged) {
        if (virAsprintf(&cfg->logDir,
                        "%s/log/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (VIR_STRDUP(cfg->configBaseDir, SYSCONFDIR "/libvirt") < 0)
            goto error;

        if (virAsprintf(&cfg->stateDir,
                      "%s/run/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->libDir,
                      "%s/lib/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;

        if (virAsprintf(&cfg->cacheDir,
                      "%s/cache/libvirt/qemu", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir,
                      "%s/lib/libvirt/qemu/save", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir,
                        "%s/lib/libvirt/qemu/snapshot", LOCALSTATEDIR) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath,
                        "%s/lib/libvirt/qemu/dump", LOCALSTATEDIR) < 0)
            goto error;
    } else {
        char *rundir;
        char *cachedir;

        cachedir = virGetUserCacheDirectory();
        if (!cachedir)
            goto error;

        if (virAsprintf(&cfg->logDir,
                        "%s/qemu/log", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        if (virAsprintf(&cfg->cacheDir, "%s/qemu/cache", cachedir) < 0) {
            VIR_FREE(cachedir);
            goto error;
        }
        VIR_FREE(cachedir);

        rundir = virGetUserRuntimeDirectory();
        if (!rundir)
            goto error;
        if (virAsprintf(&cfg->stateDir, "%s/qemu/run", rundir) < 0) {
            VIR_FREE(rundir);
            goto error;
        }
        VIR_FREE(rundir);

        if (!(cfg->configBaseDir = virGetUserConfigDirectory()))
            goto error;

        if (virAsprintf(&cfg->libDir, "%s/qemu/lib", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->saveDir, "%s/qemu/save", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->snapshotDir, "%s/qemu/snapshot", cfg->configBaseDir) < 0)
            goto error;
        if (virAsprintf(&cfg->autoDumpPath, "%s/qemu/dump", cfg->configBaseDir) < 0)
            goto error;
    }

    if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
        goto error;
    if (virAsprintf(&cfg->autostartDir, "%s/qemu/autostart", cfg->configBaseDir) < 0)
        goto error;

//.........这里部分代码省略.........

int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
                                const char *filename)
{
    virConfPtr conf = NULL;
    virConfValuePtr p;
    int ret = -1;
    size_t i;

    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access(filename, R_OK) == -1) {
        VIR_INFO("Could not read qemu config file %s", filename);
        return 0;
    }

    if (!(conf = virConfReadFile(filename, 0)))
        goto cleanup;

#define CHECK_TYPE(name,typ)                          \
    if (p && p->type != (typ)) {                      \
        virReportError(VIR_ERR_INTERNAL_ERROR,        \
                       "%s: %s: expected type " #typ, \
                       filename, (name));             \
        goto cleanup;                                 \
    }

#define GET_VALUE_LONG(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_LONG);  \
    if (p)                            \
        VAR = p->l;

#define GET_VALUE_BOOL(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_LONG);  \
    if (p)                            \
        VAR = p->l != 0;

#define GET_VALUE_STR(NAME, VAR)           \
    p = virConfGetValue(conf, NAME);       \
    CHECK_TYPE(NAME, VIR_CONF_STRING);     \
    if (p && p->str) {                     \
        VIR_FREE(VAR);                     \
        if (VIR_STRDUP(VAR, p->str) < 0)   \
            goto cleanup;                  \
    }

    GET_VALUE_BOOL("vnc_auto_unix_socket", cfg->vncAutoUnixSocket);
    GET_VALUE_BOOL("vnc_tls", cfg->vncTLS);
    GET_VALUE_BOOL("vnc_tls_x509_verify", cfg->vncTLSx509verify);
    GET_VALUE_STR("vnc_tls_x509_cert_dir", cfg->vncTLSx509certdir);
    GET_VALUE_STR("vnc_listen", cfg->vncListen);
    GET_VALUE_STR("vnc_password", cfg->vncPassword);
    GET_VALUE_BOOL("vnc_sasl", cfg->vncSASL);
    GET_VALUE_STR("vnc_sasl_dir", cfg->vncSASLdir);
    GET_VALUE_BOOL("vnc_allow_host_audio", cfg->vncAllowHostAudio);
    GET_VALUE_BOOL("nographics_allow_host_audio", cfg->nogfxAllowHostAudio);

    p = virConfGetValue(conf, "security_driver");
    if (p && p->type == VIR_CONF_LIST) {
        size_t len;
        virConfValuePtr pp;

        /* Calc length and check items */
        for (len = 0, pp = p->list; pp; len++, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("security_driver must be a list of strings"));
                goto cleanup;
            }
        }

        if (VIR_ALLOC_N(cfg->securityDriverNames, len + 1) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            if (VIR_STRDUP(cfg->securityDriverNames[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->securityDriverNames[len] = NULL;
    } else {
        CHECK_TYPE("security_driver", VIR_CONF_STRING);
        if (p && p->str) {
            if (VIR_ALLOC_N(cfg->securityDriverNames, 2) < 0)
                goto cleanup;
            if (VIR_STRDUP(cfg->securityDriverNames[0], p->str) < 0)
                goto cleanup;

            cfg->securityDriverNames[1] = NULL;
        }
    }

    GET_VALUE_BOOL("security_default_confined", cfg->securityDefaultConfined);
    GET_VALUE_BOOL("security_require_confined", cfg->securityRequireConfined);

    GET_VALUE_BOOL("spice_tls", cfg->spiceTLS);
    GET_VALUE_STR("spice_tls_x509_cert_dir", cfg->spiceTLSx509certdir);
    GET_VALUE_BOOL("spice_sasl", cfg->spiceSASL);
    GET_VALUE_STR("spice_sasl_dir", cfg->spiceSASLdir);
//.........这里部分代码省略.........

static int
testInfoSet(struct testInfo *info,
            const char *name,
            bool different,
            int when)
{
    if (!(info->qemuCaps = virQEMUCapsNew()))
        goto error;

    if (qemuTestCapsCacheInsert(driver.qemuCapsCache, name,
                                info->qemuCaps) < 0)
        goto error;

    if (virAsprintf(&info->inName, "%s/qemuxml2argvdata/qemuxml2argv-%s.xml",
                    abs_srcdir, name) < 0)
        goto error;

    if (when & WHEN_INACTIVE) {
        if (different) {
            if (virAsprintf(&info->outInactiveName,
                           "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s-inactive.xml",
                           abs_srcdir, name) < 0)
                goto error;

            if (!virFileExists(info->outInactiveName)) {
                VIR_FREE(info->outInactiveName);

                if (virAsprintf(&info->outInactiveName,
                                "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s.xml",
                                abs_srcdir, name) < 0)
                    goto error;
            }
        } else {
            if (VIR_STRDUP(info->outInactiveName, info->inName) < 0)
                goto error;
        }
    }

    if (when & WHEN_ACTIVE) {
        if (different) {
            if (virAsprintf(&info->outActiveName,
                           "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s-active.xml",
                           abs_srcdir, name) < 0)
                goto error;

            if (!virFileExists(info->outActiveName)) {
                VIR_FREE(info->outActiveName);

                if (virAsprintf(&info->outActiveName,
                                "%s/qemuxml2xmloutdata/qemuxml2xmlout-%s.xml",
                                abs_srcdir, name) < 0)
                    goto error;
            }
        } else {
            if (VIR_STRDUP(info->outActiveName, info->inName) < 0)
                goto error;
        }

    }

    return 0;

 error:
    testInfoFree(info);
    return -1;
}

static int
bhyveBuildNetArgStr(const virDomainDef *def,
                    virDomainNetDefPtr net,
                    virCommandPtr cmd,
                    bool dryRun)
{
    char macaddr[VIR_MAC_STRING_BUFLEN];
    char *realifname = NULL;
    char *brname = NULL;
    int actualType = virDomainNetGetActualType(net);

    if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
        if (VIR_STRDUP(brname, virDomainNetGetActualBridgeName(net)) < 0)
            return -1;
    } else {
        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                       _("Network type %d is not supported"),
                       virDomainNetGetActualType(net));
        return -1;
    }

    if (!net->ifname ||
        STRPREFIX(net->ifname, VIR_NET_GENERATED_PREFIX) ||
        strchr(net->ifname, '%')) {
        VIR_FREE(net->ifname);
        if (VIR_STRDUP(net->ifname, VIR_NET_GENERATED_PREFIX "%d") < 0) {
            VIR_FREE(brname);
            return -1;
        }
    }

    if (!dryRun) {
        if (virNetDevTapCreateInBridgePort(brname, &net->ifname, &net->mac,
                                           def->uuid, NULL, 0,
                                           virDomainNetGetActualVirtPortProfile(net),
                                           virDomainNetGetActualVlan(net),
                                           VIR_NETDEV_TAP_CREATE_IFUP | VIR_NETDEV_TAP_CREATE_PERSIST) < 0) {
            VIR_FREE(net->ifname);
            VIR_FREE(brname);
            return -1;
        }

        realifname = virNetDevTapGetRealDeviceName(net->ifname);

        if (realifname == NULL) {
            VIR_FREE(net->ifname);
            VIR_FREE(brname);
            return -1;
        }

        VIR_DEBUG("%s -> %s", net->ifname, realifname);
        /* hack on top of other hack: we need to set
         * interface to 'UP' again after re-opening to find its
         * name
         */
        if (virNetDevSetOnline(net->ifname, true) != 0) {
            VIR_FREE(realifname);
            VIR_FREE(net->ifname);
            VIR_FREE(brname);
            return -1;
        }
    } else {
        if (VIR_STRDUP(realifname, "tap0") < 0)
            return -1;
    }


    virCommandAddArg(cmd, "-s");
    virCommandAddArgFormat(cmd, "%d:0,virtio-net,%s,mac=%s",
                           net->info.addr.pci.slot,
                           realifname, virMacAddrFormat(&net->mac, macaddr));
    VIR_FREE(realifname);

    return 0;
}

unsigned long long
virMemoryMaxValue(bool capped ATTRIBUTE_UNUSED)
{
    return LLONG_MAX;
}

char *
virSCSIDeviceGetSgName(const char *sysfs_prefix ATTRIBUTE_UNUSED,
                       const char *adapter ATTRIBUTE_UNUSED,
                       unsigned int bus ATTRIBUTE_UNUSED,
                       unsigned int target ATTRIBUTE_UNUSED,
                       unsigned long long unit ATTRIBUTE_UNUSED)
{
    char *ret;

    ignore_value(VIR_STRDUP(ret, "sg0"));
    return ret;
}

int
virSCSIVHostOpenVhostSCSI(int *vhostfd)
{
    *vhostfd = STDERR_FILENO + 1;

    return 0;
}

int
virNetDevTapCreate(char **ifname,
                   const char *tunpath ATTRIBUTE_UNUSED,
                   int *tapfd,

static virStorageVolPtr
parallelsStorageVolCreateXMLFrom(virStoragePoolPtr pool,
                                    const char *xmldesc,
                                    virStorageVolPtr clonevol,
                                    unsigned int flags)
{
    parallelsConnPtr privconn = pool->conn->privateData;
    virStoragePoolObjPtr privpool;
    virStorageVolDefPtr privvol = NULL, origvol = NULL;
    virStorageVolPtr ret = NULL;

    virCheckFlags(0, NULL);

    parallelsDriverLock(privconn);
    privpool = virStoragePoolObjFindByName(&privconn->pools, pool->name);
    parallelsDriverUnlock(privconn);

    if (privpool == NULL) {
        parallelsPoolNotFoundError(pool->name);
        goto cleanup;
    }

    if (!virStoragePoolObjIsActive(privpool)) {
        virReportError(VIR_ERR_OPERATION_INVALID,
                       _("storage pool '%s' is not active"), pool->name);
        goto cleanup;
    }

    privvol = virStorageVolDefParseString(privpool->def, xmldesc);
    if (privvol == NULL)
        goto cleanup;

    if (virStorageVolDefFindByName(privpool, privvol->name)) {
        virReportError(VIR_ERR_OPERATION_FAILED,
                       "%s", _("storage vol already exists"));
        goto cleanup;
    }

    origvol = virStorageVolDefFindByName(privpool, clonevol->name);
    if (!origvol) {
        virReportError(VIR_ERR_NO_STORAGE_VOL,
                       _("no storage vol with matching name '%s'"),
                       clonevol->name);
        goto cleanup;
    }

    /* Make sure enough space */
    if ((privpool->def->allocation + privvol->allocation) >
        privpool->def->capacity) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Not enough free space in pool for volume '%s'"),
                       privvol->name);
        goto cleanup;
    }
    privpool->def->available = (privpool->def->capacity -
                                privpool->def->allocation);

    if (VIR_REALLOC_N(privpool->volumes.objs,
                      privpool->volumes.count + 1) < 0) {
        virReportOOMError();
        goto cleanup;
    }

    if (virAsprintf(&privvol->target.path, "%s/%s",
                    privpool->def->target.path, privvol->name) == -1) {
        virReportOOMError();
        goto cleanup;
    }

    if (VIR_STRDUP(privvol->key, privvol->target.path) < 0)
        goto cleanup;

    privpool->def->allocation += privvol->allocation;
    privpool->def->available = (privpool->def->capacity -
                                privpool->def->allocation);

    privpool->volumes.objs[privpool->volumes.count++] = privvol;

    ret = virGetStorageVol(pool->conn, privpool->def->name,
                           privvol->name, privvol->key,
                           NULL, NULL);
    privvol = NULL;

cleanup:
    virStorageVolDefFree(privvol);
    if (privpool)
        virStoragePoolObjUnlock(privpool);
    return ret;
}