示例#1
0
/* Debian/Ubuntu install disks are easy ...
 *
 * These files are added by the debian-cd program, and it is worth
 * looking at the source code to determine exact values, in
 * particular '/usr/share/debian-cd/tools/start_new_disc'
 *
 * XXX Architecture?  We could parse it out of the product name
 * string, but that seems quite hairy.  We could look for the names
 * of packages.  Also note that some Debian install disks are
 * multiarch.
 */
static int
check_debian_installer_root (guestfs_h *g, struct inspect_fs *fs)
{
  fs->product_name = guestfs_int_first_line_of_file (g, "/.disk/info");
  if (!fs->product_name)
    return -1;

  fs->type = OS_TYPE_LINUX;
  if (STRPREFIX (fs->product_name, "Ubuntu"))
    fs->distro = OS_DISTRO_UBUNTU;
  else if (STRPREFIX (fs->product_name, "Debian"))
    fs->distro = OS_DISTRO_DEBIAN;

  (void) guestfs_int_parse_major_minor (g, fs);

  if (guestfs_is_file (g, "/.disk/cd_type") > 0) {
    CLEANUP_FREE char *cd_type =
      guestfs_int_first_line_of_file (g, "/.disk/cd_type");
    if (!cd_type)
      return -1;

    if (STRPREFIX (cd_type, "dvd/single") ||
        STRPREFIX (cd_type, "full_cd/single")) {
      fs->is_multipart_disk = 0;
      fs->is_netinst_disk = 0;
    }
    else if (STRPREFIX (cd_type, "dvd") ||
             STRPREFIX (cd_type, "full_cd")) {
      fs->is_multipart_disk = 1;
      fs->is_netinst_disk = 0;
    }
    else if (STRPREFIX (cd_type, "not_complete")) {
      fs->is_multipart_disk = 0;
      fs->is_netinst_disk = 1;
    }
  }

  return 0;
}
示例#2
0
文件: xen_xl.c 项目: Lantame/libvirt
static int
xenParseXLDiskSrc(virDomainDiskDefPtr disk, char *srcstr)
{
    char *tmpstr = NULL;
    int ret = -1;

    if (STRPREFIX(srcstr, "rbd:")) {
        if (!(tmpstr = virStringReplace(srcstr, "\\\\", "\\")))
            goto cleanup;

        virDomainDiskSetType(disk, VIR_STORAGE_TYPE_NETWORK);
        disk->src->protocol = VIR_STORAGE_NET_PROTOCOL_RBD;
        ret = virStorageSourceParseRBDColonString(tmpstr, disk->src);
    } else {
        if (virDomainDiskSetSource(disk, srcstr) < 0)
            goto cleanup;

        ret = 0;
    }

 cleanup:
    VIR_FREE(tmpstr);
    return ret;
}
示例#3
0
static bool
qemuHostdevHostSupportsPassthroughVFIO(void)
{
    DIR *iommuDir = NULL;
    struct dirent *iommuGroup = NULL;
    bool ret = false;

    /* condition 1 - /sys/kernel/iommu_groups/ contains entries */
    if (!(iommuDir = opendir("/sys/kernel/iommu_groups/")))
        goto cleanup;

    while ((iommuGroup = readdir(iommuDir))) {
        /* skip ./ ../ */
        if (STRPREFIX(iommuGroup->d_name, "."))
            continue;

        /* assume we found a group */
        break;
    }

    if (!iommuGroup)
        goto cleanup;
    /* okay, iommu is on and recognizes groups */

    /* condition 2 - /dev/vfio/vfio exists */
    if (!virFileExists("/dev/vfio/vfio"))
        goto cleanup;

    ret = true;

cleanup:
    if (iommuDir)
        closedir(iommuDir);

    return ret;
}
示例#4
0
/* Split "/dev/VG/LV" into "VG" and "LV".  This function should
 * probably do more checks.
 */
int
vg_lv_parse (const char *device, char **vg, char **lv)
{
  if (STRPREFIX (device, "/dev/"))
    device += 5;

  const char *p = strchr (device, '/');
  if (p == NULL)
    return -1;

  if (vg) {
    *vg = strndup (device, p - device);
    if (*vg == NULL)
      error (EXIT_FAILURE, errno, "strndup");
  }

  if (lv) {
    *lv = strdup (p+1);
    if (*lv == NULL)
      error (EXIT_FAILURE, errno, "strndup");
  }

  return 0;
}
示例#5
0
/**
 * virNumaGetPages:
 * @node: NUMA node id
 * @pages_size: list of pages supported on @node
 * @pages_avail: list of the pool sizes on @node
 * @pages_free: list of free pages on @node
 * @npages: the lists size
 *
 * For given NUMA node fetch info on pages. The size of pages
 * (e.g.  4K, 2M, 1G) is stored into @pages_size, the size of the
 * pool is then stored into @pages_avail and the number of free
 * pages in the pool is stored into @pages_free.
 *
 * If you're interested only in some lists, pass NULL to the
 * other ones.
 *
 * As a special case, if @node == -1, overall info is fetched
 * from the system.
 *
 * Returns 0 on success, -1 otherwise.
 */
int
virNumaGetPages(int node,
                unsigned int **pages_size,
                unsigned int **pages_avail,
                unsigned int **pages_free,
                size_t *npages)
{
    int ret = -1;
    char *path = NULL;
    DIR *dir = NULL;
    int direrr = 0;
    struct dirent *entry;
    unsigned int *tmp_size = NULL, *tmp_avail = NULL, *tmp_free = NULL;
    unsigned int ntmp = 0;
    size_t i;
    bool exchange;
    long system_page_size;
    unsigned long long huge_page_sum = 0;

    /* sysconf() returns page size in bytes,
     * but we are storing the page size in kibibytes. */
    system_page_size = virGetSystemPageSizeKB();

    /* Query huge pages at first.
     * On Linux systems, the huge pages pool cuts off the available memory and
     * is always shown as used memory. Here, however, we want to report
     * slightly different information. So we take the total memory on a node
     * and subtract memory taken by the huge pages. */
    if (virNumaGetHugePageInfoPath(&path, node, 0, NULL) < 0)
        goto cleanup;

    if (!(dir = opendir(path))) {
        /* It's okay if the @path doesn't exist. Maybe we are running on
         * system without huge pages support where the path may not exist. */
        if (errno != ENOENT) {
            virReportSystemError(errno,
                                 _("unable to open path: %s"),
                                 path);
            goto cleanup;
        }
    }

    while (dir && (direrr = virDirRead(dir, &entry, path)) > 0) {
        const char *page_name = entry->d_name;
        unsigned int page_size, page_avail = 0, page_free = 0;
        char *end;

        /* Just to give you a hint, we're dealing with this:
         * hugepages-2048kB/  or   hugepages-1048576kB/ */
        if (!STRPREFIX(entry->d_name, HUGEPAGES_PREFIX))
            continue;

        page_name += strlen(HUGEPAGES_PREFIX);

        if (virStrToLong_ui(page_name, &end, 10, &page_size) < 0 ||
                STRCASENEQ(end, "kB")) {
            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("unable to parse %s"),
                           entry->d_name);
            goto cleanup;
        }

        if (virNumaGetHugePageInfo(node, page_size,
                                   &page_avail, &page_free) < 0)
            goto cleanup;

        if (VIR_REALLOC_N(tmp_size, ntmp + 1) < 0 ||
                VIR_REALLOC_N(tmp_avail, ntmp + 1) < 0 ||
                VIR_REALLOC_N(tmp_free, ntmp + 1) < 0)
            goto cleanup;

        tmp_size[ntmp] = page_size;
        tmp_avail[ntmp] = page_avail;
        tmp_free[ntmp] = page_free;
        ntmp++;

        /* page_size is in kibibytes while we want huge_page_sum
         * in just bytes. */
        huge_page_sum += 1024 * page_size * page_avail;
    }

    if (direrr < 0)
        goto cleanup;

    /* Now append the ordinary system pages */
    if (VIR_REALLOC_N(tmp_size, ntmp + 1) < 0 ||
            VIR_REALLOC_N(tmp_avail, ntmp + 1) < 0 ||
            VIR_REALLOC_N(tmp_free, ntmp + 1) < 0)
        goto cleanup;

    if (virNumaGetPageInfo(node, system_page_size, huge_page_sum,
                           &tmp_avail[ntmp], &tmp_free[ntmp]) < 0)
        goto cleanup;
    tmp_size[ntmp] = system_page_size;
    ntmp++;

    /* Just to produce nice output, sort the arrays by increasing page size */
    do {
        exchange = false;
        for (i = 0; i < ntmp -1; i++) {
            if (tmp_size[i] > tmp_size[i + 1]) {
                exchange = true;
                SWAP(tmp_size[i], tmp_size[i + 1]);
                SWAP(tmp_avail[i], tmp_avail[i + 1]);
                SWAP(tmp_free[i], tmp_free[i + 1]);
            }
        }
    } while (exchange);

    if (pages_size) {
        *pages_size = tmp_size;
        tmp_size = NULL;
    }
    if (pages_avail) {
        *pages_avail = tmp_avail;
        tmp_avail = NULL;
    }
    if (pages_free) {
        *pages_free = tmp_free;
        tmp_free = NULL;
    }
    *npages = ntmp;
    ret = 0;
cleanup:
    VIR_FREE(tmp_free);
    VIR_FREE(tmp_avail);
    VIR_FREE(tmp_size);
    if (dir)
        closedir(dir);
    VIR_FREE(path);
    return ret;
}
示例#6
0
文件: xen_xl.c 项目: Lantame/libvirt
static int
xenParseXLUSB(virConfPtr conf, virDomainDefPtr def)
{
    virConfValuePtr list = virConfGetValue(conf, "usbdev");
    virDomainHostdevDefPtr hostdev = NULL;

    if (list && list->type == VIR_CONF_LIST) {
        list = list->list;
        while (list) {
            char bus[3];
            char device[3];
            char *key;
            int busNum;
            int devNum;

            bus[0] = device[0] = '\0';

            if ((list->type != VIR_CONF_STRING) || (list->str == NULL))
                goto skipusb;
            /* usbdev=['hostbus=1,hostaddr=3'] */
            key = list->str;
            while (key) {
                char *data;
                char *nextkey = strchr(key, ',');

                if (!(data = strchr(key, '=')))
                    goto skipusb;
                data++;

                if (STRPREFIX(key, "hostbus=")) {
                    int len = nextkey ? (nextkey - data) : sizeof(bus) - 1;
                    if (virStrncpy(bus, data, len, sizeof(bus)) == NULL) {
                        virReportError(VIR_ERR_INTERNAL_ERROR,
                                       _("bus %s too big for destination"),
                                       data);
                        goto skipusb;
                    }
                } else if (STRPREFIX(key, "hostaddr=")) {
                    int len = nextkey ? (nextkey - data) : sizeof(device) - 1;
                    if (virStrncpy(device, data, len, sizeof(device)) == NULL) {
                        virReportError(VIR_ERR_INTERNAL_ERROR,
                                       _("device %s too big for destination"),
                                       data);
                        goto skipusb;
                    }
                }

                while (nextkey && (nextkey[0] == ',' ||
                                   nextkey[0] == ' ' ||
                                   nextkey[0] == '\t'))
                    nextkey++;
                key = nextkey;
            }

            if (virStrToLong_i(bus, NULL, 16, &busNum) < 0)
                goto skipusb;
            if (virStrToLong_i(device, NULL, 16, &devNum) < 0)
                goto skipusb;
            if (!(hostdev = virDomainHostdevDefAlloc(NULL)))
               return -1;

            hostdev->managed = false;
            hostdev->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB;
            hostdev->source.subsys.u.usb.bus = busNum;
            hostdev->source.subsys.u.usb.device = devNum;

            if (VIR_APPEND_ELEMENT(def->hostdevs, def->nhostdevs, hostdev) < 0) {
                virDomainHostdevDefFree(hostdev);
                return -1;
            }

        skipusb:
            list = list->next;
        }
    }

    return 0;
}
示例#7
0
static int virLockManagerLockDaemonAddResource(virLockManagerPtr lock,
                                               unsigned int type,
                                               const char *name,
                                               size_t nparams,
                                               virLockManagerParamPtr params,
                                               unsigned int flags)
{
    virLockManagerLockDaemonPrivatePtr priv = lock->privateData;
    char *newName = NULL;
    char *newLockspace = NULL;
    bool autoCreate = false;

    virCheckFlags(VIR_LOCK_MANAGER_RESOURCE_READONLY |
                  VIR_LOCK_MANAGER_RESOURCE_SHARED, -1);

    if (flags & VIR_LOCK_MANAGER_RESOURCE_READONLY)
        return 0;

    switch (type) {
    case VIR_LOCK_MANAGER_RESOURCE_TYPE_DISK:
        if (params || nparams) {
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Unexpected parameters for disk resource"));
            return -1;
        }
        if (!driver->autoDiskLease) {
            if (!(flags & (VIR_LOCK_MANAGER_RESOURCE_SHARED |
                           VIR_LOCK_MANAGER_RESOURCE_READONLY)))
                priv->hasRWDisks = true;
            return 0;
        }

        /* XXX we should somehow pass in TYPE=BLOCK info
         * from the domain_lock code, instead of assuming /dev
         */
        if (STRPREFIX(name, "/dev") &&
            driver->lvmLockSpaceDir) {
            VIR_DEBUG("Trying to find an LVM UUID for %s", name);
            if (virStorageFileGetLVMKey(name, &newName) < 0)
                goto error;

            if (newName) {
                VIR_DEBUG("Got an LVM UUID %s for %s", newName, name);
                if (!(newLockspace = strdup(driver->lvmLockSpaceDir)))
                    goto no_memory;
                autoCreate = true;
                break;
            }
            virResetLastError();
            /* Fallback to generic non-block code */
        }

        if (STRPREFIX(name, "/dev") &&
            driver->scsiLockSpaceDir) {
            VIR_DEBUG("Trying to find an SCSI ID for %s", name);
            if (virStorageFileGetSCSIKey(name, &newName) < 0)
                goto error;

            if (newName) {
                VIR_DEBUG("Got an SCSI ID %s for %s", newName, name);
                if (!(newLockspace = strdup(driver->scsiLockSpaceDir)))
                    goto no_memory;
                autoCreate = true;
                break;
            }
            virResetLastError();
            /* Fallback to generic non-block code */
        }

        if (driver->fileLockSpaceDir) {
            if (!(newLockspace = strdup(driver->fileLockSpaceDir)))
                goto no_memory;
            if (!(newName = virLockManagerLockDaemonDiskLeaseName(name)))
                goto no_memory;
            autoCreate = true;
            VIR_DEBUG("Using indirect lease %s for %s", newName, name);
        } else {
            if (!(newLockspace = strdup("")))
                goto no_memory;
            if (!(newName = strdup(name)))
                goto no_memory;
            VIR_DEBUG("Using direct lease for %s", name);
        }

        break;
    case VIR_LOCK_MANAGER_RESOURCE_TYPE_LEASE: {
        size_t i;
        char *path = NULL;
        char *lockspace = NULL;
        for (i = 0 ; i < nparams ; i++) {
            if (STREQ(params[i].key, "offset")) {
                if (params[i].value.ul != 0) {
                    virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                   _("Offset must be zero for this lock manager"));
                    return -1;
                }
            } else if (STREQ(params[i].key, "lockspace")) {
                lockspace = params[i].value.str;
            } else if (STREQ(params[i].key, "path")) {
                path = params[i].value.str;
            } else {
                virReportError(VIR_ERR_INTERNAL_ERROR,
                               _("Unexpected parameter %s for lease resource"),
                               params[i].key);
                return -1;
            }
        }
        if (!path || !lockspace) {
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Missing path or lockspace for lease resource"));
            return -1;
        }
        if (virAsprintf(&newLockspace, "%s/%s",
                        path, lockspace) < 0) {
            virReportOOMError();
            return -1;
        }
        if (!(newName = strdup(name)))
            goto no_memory;

    }   break;
    default:
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Unknown lock manager object type %d"),
                       type);
        return -1;
    }

    if (VIR_EXPAND_N(priv->resources, priv->nresources, 1) < 0)
        goto no_memory;

    priv->resources[priv->nresources-1].lockspace = newLockspace;
    priv->resources[priv->nresources-1].name = newName;

    if (flags & VIR_LOCK_MANAGER_RESOURCE_SHARED)
        priv->resources[priv->nresources-1].flags |=
            VIR_LOCK_SPACE_PROTOCOL_ACQUIRE_RESOURCE_SHARED;

    if (autoCreate)
        priv->resources[priv->nresources-1].flags |=
            VIR_LOCK_SPACE_PROTOCOL_ACQUIRE_RESOURCE_AUTOCREATE;

    return 0;

no_memory:
    virReportOOMError();
error:
    VIR_FREE(newLockspace);
    VIR_FREE(newName);
    return -1;
}
示例#8
0
static int testCompareXMLToArgvFiles(const char *xml,
                                     const char *cmdline,
                                     virBitmapPtr 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(driver.caps, xml,
                                        QEMU_EXPECTED_VIRT_TYPES,
                                        VIR_DOMAIN_XML_INACTIVE)))
        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 (!(emulator = strdup(vmdef->emulator + 1)))
            goto fail;
        free(vmdef->emulator);
        vmdef->emulator = NULL;
        if (virAsprintf(&vmdef->emulator, "%s/qemuxml2argvdata/%s",
                        abs_srcdir, emulator) < 0)
            goto fail;
    }

    if (qemuCapsGet(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;

    qemuCapsSetList(extraFlags,
                    QEMU_CAPS_VNC_COLON,
                    QEMU_CAPS_NO_REBOOT,
                    QEMU_CAPS_LAST);

    if (qemudCanonicalizeMachine(&driver, vmdef) < 0)
        goto fail;

    if (qemuCapsGet(extraFlags, QEMU_CAPS_DEVICE)) {
        qemuDomainPCIAddressSetPtr pciaddrs;
        if (!(pciaddrs = qemuDomainPCIAddressSetCreate(vmdef)))
            goto fail;

        if (qemuAssignDevicePCISlots(vmdef, pciaddrs) < 0)
            goto fail;

        qemuDomainPCIAddressSetFree(pciaddrs);
    }


    free(virtTestLogContentAndReset());
    virResetLastError();

    /* We do not call qemuCapsExtractVersionInfo() before calling
     * qemuBuildCommandLine(), so we should set QEMU_CAPS_PCI_MULTIBUS for
     * x86_64 and i686 architectures here.
     */
    if (STREQLEN(vmdef->os.arch, "x86_64", 6) ||
        STREQLEN(vmdef->os.arch, "i686", 4)) {
        qemuCapsSet(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_VM_OP_NO_OP)))
        goto fail;

    if (!!virGetLastError() != expectError) {
        if (virTestGetDebug() && (log = virtTestLogContentAndReset()))
            fprintf(stderr, "\n%s", log);
        goto fail;
    }

    if (expectError) {
        /* need to suppress the errors */
        virResetLastError();
    }

    if (!(actualargv = virCommandToString(cmd)))
        goto fail;

    if (emulator) {
        /* Skip the abs_srcdir portion of replacement emulator.  */
        char *start_skip = strstr(actualargv, abs_srcdir);
        char *end_skip = strstr(actualargv, emulator);
        if (!start_skip || !end_skip)
            goto fail;
        memmove(start_skip, end_skip, strlen(end_skip) + 1);
    }

    if (STRNEQ(expectargv, actualargv)) {
        virtTestDifference(stderr, expectargv, actualargv);
        goto fail;
    }

    ret = 0;

 fail:
    free(log);
    free(emulator);
    free(expectargv);
    free(actualargv);
    virCommandFree(cmd);
    virDomainDefFree(vmdef);
    virUnrefConnect(conn);
    return ret;
}
示例#9
0
static virStorageVolPtr
esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
{
    virStorageVolPtr volume = NULL;
    esxPrivate *priv = conn->privateData;
    esxVI_String *propertyNameList = NULL;
    esxVI_ObjectContent *datastoreList = NULL;
    esxVI_ObjectContent *datastore = NULL;
    char *datastoreName = NULL;
    esxVI_HostDatastoreBrowserSearchResults *searchResultsList = NULL;
    esxVI_HostDatastoreBrowserSearchResults *searchResults = NULL;
    char *directoryAndFileName = NULL;
    size_t length;
    char *datastorePath = NULL;
    char *volumeName = NULL;
    esxVI_FileInfo *fileInfo = NULL;
    char *uuid_string = NULL;
    char key_candidate[VIR_UUID_STRING_BUFLEN] = "";

    if (STRPREFIX(key, "[")) {
        /* Key is probably a datastore path */
        return esxStorageVolLookupByPath(conn, key);
    }

    if (!priv->primary->hasQueryVirtualDiskUuid) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("QueryVirtualDiskUuid not available, "
                         "cannot lookup storage volume by UUID"));
        return NULL;
    }

    /* Lookup all datastores */
    if (esxVI_String_AppendValueToList(&propertyNameList, "summary.name") < 0 ||
        esxVI_LookupDatastoreList(priv->primary, propertyNameList,
                                  &datastoreList) < 0) {
        goto cleanup;
    }

    for (datastore = datastoreList; datastore;
         datastore = datastore->_next) {
        datastoreName = NULL;

        if (esxVI_GetStringValue(datastore, "summary.name", &datastoreName,
                                 esxVI_Occurrence_RequiredItem) < 0) {
            goto cleanup;
        }

        /* Lookup datastore content */
        esxVI_HostDatastoreBrowserSearchResults_Free(&searchResultsList);

        if (esxVI_LookupDatastoreContentByDatastoreName
              (priv->primary, datastoreName, &searchResultsList) < 0) {
            goto cleanup;
        }

        /* Interpret search result */
        for (searchResults = searchResultsList; searchResults;
             searchResults = searchResults->_next) {
            VIR_FREE(directoryAndFileName);

            if (esxUtil_ParseDatastorePath(searchResults->folderPath, NULL,
                                           NULL, &directoryAndFileName) < 0) {
                goto cleanup;
            }

            /* Strip trailing separators */
            length = strlen(directoryAndFileName);

            while (length > 0 && directoryAndFileName[length - 1] == '/') {
                directoryAndFileName[length - 1] = '\0';
                --length;
            }

            /* Build datastore path and query the UUID */
            for (fileInfo = searchResults->file; fileInfo;
                 fileInfo = fileInfo->_next) {
                VIR_FREE(datastorePath);

                if (length < 1) {
                    if (VIR_STRDUP(volumeName, fileInfo->path) < 0)
                        goto cleanup;
                } else if (virAsprintf(&volumeName, "%s/%s",
                                       directoryAndFileName,
                                       fileInfo->path) < 0) {
                    goto cleanup;
                }

                if (virAsprintf(&datastorePath, "[%s] %s", datastoreName,
                                volumeName) < 0)
                    goto cleanup;

                if (!esxVI_VmDiskFileInfo_DynamicCast(fileInfo)) {
                    /* Only a VirtualDisk has a UUID */
                    continue;
                }

                VIR_FREE(uuid_string);

                if (esxVI_QueryVirtualDiskUuid
                      (priv->primary, datastorePath,
                       priv->primary->datacenter->_reference,
                       &uuid_string) < 0) {
                    goto cleanup;
                }

                if (esxUtil_ReformatUuid(uuid_string, key_candidate) < 0)
                    goto cleanup;

                if (STREQ(key, key_candidate)) {
                    /* Found matching UUID */
                    volume = virGetStorageVol(conn, datastoreName,
                                              volumeName, key,
                                              &esxStorageBackendVMFS, NULL);
                    goto cleanup;
                }
            }
        }
    }

 cleanup:
    esxVI_String_Free(&propertyNameList);
    esxVI_ObjectContent_Free(&datastoreList);
    esxVI_HostDatastoreBrowserSearchResults_Free(&searchResultsList);
    VIR_FREE(directoryAndFileName);
    VIR_FREE(datastorePath);
    VIR_FREE(volumeName);
    VIR_FREE(uuid_string);

    return volume;
}
示例#10
0
/* ppc64 parser.
 * Format : PowerPC <machine> <description>
 */
static int
qemuCapsParsePPCModels(const char *output,
                       unsigned int *retcount,
                       const char ***retcpus)
{
    const char *p = output;
    const char *next;
    unsigned int count = 0;
    const char **cpus = NULL;
    int i, ret = -1;

    do {
        const char *t;

        if ((next = strchr(p, '\n')))
            next++;

        if (!STRPREFIX(p, "PowerPC "))
            continue;

        /* Skip the preceding sub-string "PowerPC " */
        p += 8;

        /*Malformed string, does not obey the format 'PowerPC <model> <desc>'*/
        if (!(t = strchr(p, ' ')) || (next && t >= next))
            continue;

        if (*p == '\0')
            break;

        if (*p == '\n')
            continue;

        if (retcpus) {
            unsigned int len;

            if (VIR_REALLOC_N(cpus, count + 1) < 0) {
                virReportOOMError();
                goto cleanup;
            }

            len = t - p - 1;

            if (!(cpus[count] = strndup(p, len))) {
                virReportOOMError();
                goto cleanup;
            }
        }
        count++;
    } while ((p = next));

    if (retcount)
        *retcount = count;
    if (retcpus) {
        *retcpus = cpus;
        cpus = NULL;
    }
    ret = 0;

cleanup:
    if (cpus) {
        for (i = 0; i < count; i++)
            VIR_FREE(cpus[i]);
        VIR_FREE(cpus);
    }
    return ret;
}
示例#11
0
/* Format is:
 * <machine> <desc> [(default)|(alias of <canonical>)]
 */
static int
qemuCapsParseMachineTypesStr(const char *output,
                             virCapsGuestMachinePtr **machines,
                             int *nmachines)
{
    const char *p = output;
    const char *next;
    virCapsGuestMachinePtr *list = NULL;
    int nitems = 0;

    do {
        const char *t;
        virCapsGuestMachinePtr machine;

        if ((next = strchr(p, '\n')))
            ++next;

        if (STRPREFIX(p, "Supported machines are:"))
            continue;

        if (!(t = strchr(p, ' ')) || (next && t >= next))
            continue;

        if (VIR_ALLOC(machine) < 0)
            goto no_memory;

        if (!(machine->name = strndup(p, t - p))) {
            VIR_FREE(machine);
            goto no_memory;
        }

        if (VIR_REALLOC_N(list, nitems + 1) < 0) {
            VIR_FREE(machine->name);
            VIR_FREE(machine);
            goto no_memory;
        }

        p = t;
        if (!(t = strstr(p, "(default)")) || (next && t >= next)) {
            list[nitems++] = machine;
        } else {
            /* put the default first in the list */
            memmove(list + 1, list, sizeof(*list) * nitems);
            list[0] = machine;
            nitems++;
        }

        if ((t = strstr(p, "(alias of ")) && (!next || t < next)) {
            p = t + strlen("(alias of ");
            if (!(t = strchr(p, ')')) || (next && t >= next))
                continue;

            if (!(machine->canonical = strndup(p, t - p)))
                goto no_memory;
        }
    } while ((p = next));

    *machines = list;
    *nmachines = nitems;

    return 0;

  no_memory:
    virReportOOMError();
    virCapabilitiesFreeMachines(list, nitems);
    return -1;
}
示例#12
0
int linuxNodeGetCPUStats(FILE *procstat,
                         int cpuNum,
                         virNodeCPUStatsPtr params,
                         int *nparams)
{
    int ret = -1;
    char line[1024];
    unsigned long long usr, ni, sys, idle, iowait;
    unsigned long long irq, softirq, steal, guest, guest_nice;
    char cpu_header[3 + INT_BUFSIZE_BOUND(cpuNum)];

    if ((*nparams) == 0) {
        /* Current number of cpu stats supported by linux */
        *nparams = LINUX_NB_CPU_STATS;
        ret = 0;
        goto cleanup;
    }

    if ((*nparams) != LINUX_NB_CPU_STATS) {
        nodeReportError(VIR_ERR_INVALID_ARG,
                        "%s", _("Invalid parameter count"));
        goto cleanup;
    }

    if (cpuNum == VIR_NODE_CPU_STATS_ALL_CPUS) {
        strcpy(cpu_header, "cpu");
    } else {
        snprintf(cpu_header, sizeof(cpu_header), "cpu%d", cpuNum);
    }

    while (fgets(line, sizeof(line), procstat) != NULL) {
        char *buf = line;

        if (STRPREFIX(buf, cpu_header)) { /* aka logical CPU time */
            int i;

            if (sscanf(buf,
                       "%*s %llu %llu %llu %llu %llu" // user ~ iowait
                       "%llu %llu %llu %llu %llu",    // irq  ~ guest_nice
                       &usr, &ni, &sys, &idle, &iowait,
                       &irq, &softirq, &steal, &guest, &guest_nice) < 4) {
                continue;
            }

            for (i = 0; i < *nparams; i++) {
                virNodeCPUStatsPtr param = &params[i];

                switch (i) {
                case 0: /* fill kernel cpu time here */
                    if (virStrcpyStatic(param->field, VIR_NODE_CPU_STATS_KERNEL) == NULL) {
                        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                        "%s", _("Field kernel cpu time too long for destination"));
                        goto cleanup;
                    }
                    param->value = (sys + irq + softirq) * TICK_TO_NSEC;
                    break;

                case 1: /* fill user cpu time here */
                    if (virStrcpyStatic(param->field, VIR_NODE_CPU_STATS_USER) == NULL) {
                        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                        "%s", _("Field kernel cpu time too long for destination"));
                        goto cleanup;
                    }
                    param->value = (usr + ni) * TICK_TO_NSEC;
                    break;

                case 2: /* fill idle cpu time here */
                    if (virStrcpyStatic(param->field, VIR_NODE_CPU_STATS_IDLE) == NULL) {
                        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                        "%s", _("Field kernel cpu time too long for destination"));
                        goto cleanup;
                    }
                    param->value = idle * TICK_TO_NSEC;
                    break;

                case 3: /* fill iowait cpu time here */
                    if (virStrcpyStatic(param->field, VIR_NODE_CPU_STATS_IOWAIT) == NULL) {
                        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                        "%s", _("Field kernel cpu time too long for destination"));
                        goto cleanup;
                    }
                    param->value = iowait * TICK_TO_NSEC;
                    break;

                default:
                    break;
                    /* should not hit here */
                }
            }
            ret = 0;
            goto cleanup;
        }
    }

    nodeReportError(VIR_ERR_INVALID_ARG, "%s", _("Invalid cpu number"));

cleanup:
    return ret;
}
示例#13
0
int linuxNodeInfoCPUPopulate(FILE *cpuinfo,
                             const char *sysfs_cpudir,
                             virNodeInfoPtr nodeinfo)
{
    char line[1024];
    DIR *cpudir = NULL;
    struct dirent *cpudirent = NULL;
    unsigned int cpu;
    unsigned long core, sock, cur_threads;
    cpu_set_t core_mask;
    cpu_set_t socket_mask;
    int online;

    nodeinfo->cpus = 0;
    nodeinfo->mhz = 0;
    nodeinfo->cores = 0;

    nodeinfo->nodes = 1;
# if HAVE_NUMACTL
    if (numa_available() >= 0)
        nodeinfo->nodes = numa_max_node() + 1;
# endif

    if (!virStrcpyStatic(sysfs_path, sysfs_cpudir)) {
        virReportSystemError(errno, _("cannot copy %s"), sysfs_cpudir);
        return -1;
    }
    /* NB: It is impossible to fill our nodes, since cpuinfo
     * has no knowledge of NUMA nodes */

    /* NOTE: hyperthreads are ignored here; they are parsed out of /sys */
    while (fgets(line, sizeof(line), cpuinfo) != NULL) {
# if defined(__x86_64__) || \
    defined(__amd64__)  || \
    defined(__i386__)
        char *buf = line;
        if (STRPREFIX(buf, "cpu MHz")) {
            char *p;
            unsigned int ui;
            buf += 9;
            while (*buf && c_isspace(*buf))
                buf++;
            if (*buf != ':' || !buf[1]) {
                nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                "%s", _("parsing cpuinfo cpu MHz"));
                return -1;
            }
            if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0
                /* Accept trailing fractional part.  */
                && (*p == '\0' || *p == '.' || c_isspace(*p)))
                nodeinfo->mhz = ui;
        }
# elif defined(__powerpc__) || \
      defined(__powerpc64__)
        char *buf = line;
        if (STRPREFIX(buf, "clock")) {
            char *p;
            unsigned int ui;
            buf += 5;
            while (*buf && c_isspace(*buf))
                buf++;
            if (*buf != ':' || !buf[1]) {
                nodeReportError(VIR_ERR_INTERNAL_ERROR,
                                "%s", _("parsing cpuinfo cpu MHz"));
                return -1;
            }
            if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0
                /* Accept trailing fractional part.  */
                && (*p == '\0' || *p == '.' || c_isspace(*p)))
                nodeinfo->mhz = ui;
            /* No other interesting infos are available in /proc/cpuinfo.
             * However, there is a line identifying processor's version,
             * identification and machine, but we don't want it to be caught
             * and parsed in next iteration, because it is not in expected
             * format and thus lead to error. */
        }
# else
#  warning Parser for /proc/cpuinfo needs to be adapted for your architecture
# endif
    }

    /* OK, we've parsed clock speed out of /proc/cpuinfo. Get the core, socket
     * thread and topology information from /sys
     */
    cpudir = opendir(sysfs_cpudir);
    if (cpudir == NULL) {
        virReportSystemError(errno, _("cannot opendir %s"), sysfs_cpudir);
        return -1;
    }

    CPU_ZERO(&core_mask);
    CPU_ZERO(&socket_mask);

    while ((cpudirent = readdir(cpudir))) {
        if (sscanf(cpudirent->d_name, "cpu%u", &cpu) != 1)
            continue;

        online = cpu_online(cpu);
        if (online < 0) {
            closedir(cpudir);
            return -1;
        }
        if (!online)
            continue;
        nodeinfo->cpus++;

        /* Parse core */
        core = parse_core(cpu);
        if (!CPU_ISSET(core, &core_mask)) {
            CPU_SET(core, &core_mask);
            nodeinfo->cores++;
        }

        /* Parse socket */
        sock = parse_socket(cpu);
        if (!CPU_ISSET(sock, &socket_mask)) {
            CPU_SET(sock, &socket_mask);
            nodeinfo->sockets++;
        }

        cur_threads = count_thread_siblings(cpu);
        if (cur_threads == 0) {
            closedir(cpudir);
            return -1;
        }
        if (cur_threads > nodeinfo->threads)
            nodeinfo->threads = cur_threads;
    }
    if (errno) {
        virReportSystemError(errno,
                             _("problem reading %s"), sysfs_path);
        closedir(cpudir);
        return -1;
    }

    closedir(cpudir);

    /* there should always be at least one cpu, socket and one thread */
    if (nodeinfo->cpus == 0) {
        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s", _("no CPUs found"));
        return -1;
    }
    if (nodeinfo->sockets == 0) {
        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s", _("no sockets found"));
        return -1;
    }
    if (nodeinfo->threads == 0) {
        nodeReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s", _("no threads found"));
        return -1;
    }

    /* nodeinfo->sockets is supposed to be a number of sockets per NUMA node,
     * however if NUMA nodes are not composed of whole sockets, we just lie
     * about the number of NUMA nodes and force apps to check capabilities XML
     * for the actual NUMA topology.
     */
    if (nodeinfo->sockets % nodeinfo->nodes == 0)
        nodeinfo->sockets /= nodeinfo->nodes;
    else
        nodeinfo->nodes = 1;

    return 0;
}
示例#14
0
/**
 * xenInotifyOpen:
 * @conn: pointer to the connection block
 * @name: URL for the target, NULL for local
 * @flags: combination of virDrvOpenFlag(s)
 *
 * Connects and starts listening for inotify events
 *
 * Returns 0 or -1 in case of error.
 */
int
xenInotifyOpen(virConnectPtr conn,
               virConnectAuthPtr auth ATTRIBUTE_UNUSED,
               unsigned int flags)
{
    DIR *dh;
    struct dirent *ent;
    char *path;
    xenUnifiedPrivatePtr priv = conn->privateData;

    virCheckFlags(VIR_CONNECT_RO, -1);

    if (priv->configDir) {
        priv->useXenConfigCache = 1;
    } else {
        /* /var/lib/xend/domains/<uuid>/config.sxp */
        priv->configDir = XEND_DOMAINS_DIR;
        priv->useXenConfigCache = 0;

        if (VIR_ALLOC(priv->configInfoList) < 0)
            return -1;

        /* populate initial list */
        if (!(dh = opendir(priv->configDir))) {
            virReportSystemError(errno,
                                 _("cannot open directory: %s"),
                                 priv->configDir);
            return -1;
        }
        while ((ent = readdir(dh))) {
            if (STRPREFIX(ent->d_name, "."))
                continue;

            /* Build the full file path */
            if (!(path = virFileBuildPath(priv->configDir, ent->d_name, NULL))) {
                closedir(dh);
                return -1;
            }

            if (xenInotifyAddDomainConfigInfo(conn, path) < 0) {
                virReportError(VIR_ERR_INTERNAL_ERROR,
                               "%s", _("Error adding file to config list"));
                closedir(dh);
                VIR_FREE(path);
                return -1;
            }

            VIR_FREE(path);
        }
        closedir(dh);
    }

    if ((priv->inotifyFD = inotify_init()) < 0) {
        virReportSystemError(errno,
                             "%s", _("initializing inotify"));
        return -1;
    }

    VIR_DEBUG("Adding a watch on %s", priv->configDir);
    if (inotify_add_watch(priv->inotifyFD,
                          priv->configDir,
                          IN_CREATE |
                          IN_CLOSE_WRITE | IN_DELETE |
                          IN_MOVED_TO | IN_MOVED_FROM) < 0) {
        virReportSystemError(errno,
                             _("adding watch on %s"),
                             priv->configDir);
        return -1;
    }

    VIR_DEBUG("Building initial config cache");
    if (priv->useXenConfigCache &&
        xenXMConfigCacheRefresh(conn) < 0) {
        VIR_DEBUG("Failed to enable XM config cache %s", conn->err.message);
        return -1;
    }

    VIR_DEBUG("Registering with event loop");
    /* Add the handle for monitoring */
    if ((priv->inotifyWatch = virEventAddHandle(priv->inotifyFD, VIR_EVENT_HANDLE_READABLE,
                                                xenInotifyEvent, conn, NULL)) < 0) {
        VIR_DEBUG("Failed to add inotify handle, disabling events");
    }

    return 0;
}
示例#15
0
int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
                                const char *filename)
{
    virConfPtr conf = NULL;
    virConfValuePtr p;
    int ret = -1;
    size_t i;
    char *stdioHandler = NULL;

    /* 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 CHECK_TYPE_ALT(name, type1, type2)                      \
    if (p && (p->type != (type1) && p->type != (type2))) {      \
        virReportError(VIR_ERR_INTERNAL_ERROR,                  \
                       "%s: %s: expected type " #type1,         \
                       filename, (name));                       \
        goto cleanup;                                           \
    }

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

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

#define GET_VALUE_BOOL(NAME, VAR)     \
    p = virConfGetValue(conf, NAME);  \
    CHECK_TYPE(NAME, VIR_CONF_ULONG); \
    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, j;
        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) {
            for (j = 0; j < i; j++) {
                if (STREQ(pp->str, cfg->securityDriverNames[j])) {
                    virReportError(VIR_ERR_CONF_SYNTAX,
                                   _("Duplicate security driver %s"), pp->str);
                    goto cleanup;
                }
            }
            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);
    GET_VALUE_STR("spice_listen", cfg->spiceListen);
    GET_VALUE_STR("spice_password", cfg->spicePassword);
    GET_VALUE_BOOL("spice_auto_unix_socket", cfg->spiceAutoUnixSocket);


    GET_VALUE_ULONG("remote_websocket_port_min", cfg->webSocketPortMin);
    if (cfg->webSocketPortMin < QEMU_WEBSOCKET_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5700, e.g. localhost:1
         * for port 5701) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_websocket_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_WEBSOCKET_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_websocket_port_max", cfg->webSocketPortMax);
    if (cfg->webSocketPortMax > QEMU_WEBSOCKET_PORT_MAX ||
        cfg->webSocketPortMax < cfg->webSocketPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_WEBSOCKET_PORT_MAX);
        goto cleanup;
    }

    if (cfg->webSocketPortMin > cfg->webSocketPortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_websocket_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_display_port_min", cfg->remotePortMin);
    if (cfg->remotePortMin < QEMU_REMOTE_PORT_MIN) {
        /* if the port is too low, we can't get the display name
         * to tell to vnc (usually subtract 5900, e.g. localhost:1
         * for port 5901) */
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: remote_display_port_min: port must be greater "
                         "than or equal to %d"),
                        filename, QEMU_REMOTE_PORT_MIN);
        goto cleanup;
    }

    GET_VALUE_ULONG("remote_display_port_max", cfg->remotePortMax);
    if (cfg->remotePortMax > QEMU_REMOTE_PORT_MAX ||
        cfg->remotePortMax < cfg->remotePortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_max: port must be between "
                          "the minimal port and %d"),
                       filename, QEMU_REMOTE_PORT_MAX);
        goto cleanup;
    }

    if (cfg->remotePortMin > cfg->remotePortMax) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: remote_display_port_min: min port must not be "
                          "greater than max port"), filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("migration_port_min", cfg->migrationPortMin);
    if (cfg->migrationPortMin <= 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("%s: migration_port_min: port must be greater than 0"),
                        filename);
        goto cleanup;
    }

    GET_VALUE_ULONG("migration_port_max", cfg->migrationPortMax);
    if (cfg->migrationPortMax > 65535 ||
        cfg->migrationPortMax < cfg->migrationPortMin) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("%s: migration_port_max: port must be between "
                          "the minimal port %d and 65535"),
                       filename, cfg->migrationPortMin);
        goto cleanup;
    }

    p = virConfGetValue(conf, "user");
    CHECK_TYPE("user", VIR_CONF_STRING);
    if (p && p->str &&
        virGetUserID(p->str, &cfg->user) < 0)
        goto cleanup;

    p = virConfGetValue(conf, "group");
    CHECK_TYPE("group", VIR_CONF_STRING);
    if (p && p->str &&
        virGetGroupID(p->str, &cfg->group) < 0)
        goto cleanup;

    GET_VALUE_BOOL("dynamic_ownership", cfg->dynamicOwnership);

    p = virConfGetValue(conf, "cgroup_controllers");
    CHECK_TYPE("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        cfg->cgroupControllers = 0;
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_controllers must be a "
                                 "list of strings"));
                goto cleanup;
            }

            if ((ctl = virCgroupControllerTypeFromString(pp->str)) < 0) {
                virReportError(VIR_ERR_CONF_SYNTAX,
                               _("Unknown cgroup controller '%s'"), pp->str);
                goto cleanup;
            }
            cfg->cgroupControllers |= (1 << ctl);
        }
    }

    p = virConfGetValue(conf, "cgroup_device_acl");
    CHECK_TYPE("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(cfg->cgroupDeviceACL, 1+len) < 0)
            goto cleanup;

        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                virReportError(VIR_ERR_CONF_SYNTAX, "%s",
                               _("cgroup_device_acl must be a "
                                 "list of strings"));
                goto cleanup;
            }
            if (VIR_STRDUP(cfg->cgroupDeviceACL[i], pp->str) < 0)
                goto cleanup;
        }
        cfg->cgroupDeviceACL[i] = NULL;
    }

    GET_VALUE_STR("save_image_format", cfg->saveImageFormat);
    GET_VALUE_STR("dump_image_format", cfg->dumpImageFormat);
    GET_VALUE_STR("snapshot_image_format", cfg->snapshotImageFormat);

    GET_VALUE_STR("auto_dump_path", cfg->autoDumpPath);
    GET_VALUE_BOOL("auto_dump_bypass_cache", cfg->autoDumpBypassCache);
    GET_VALUE_BOOL("auto_start_bypass_cache", cfg->autoStartBypassCache);

    /* Some crazy backcompat. Back in the old days, this was just a pure
     * string. We must continue supporting it. These days however, this may be
     * an array of strings. */
    p = virConfGetValue(conf, "hugetlbfs_mount");
    if (p) {
        /* There already might be something autodetected. Avoid leaking it. */
        while (cfg->nhugetlbfs) {
            cfg->nhugetlbfs--;
            VIR_FREE(cfg->hugetlbfs[cfg->nhugetlbfs].mnt_dir);
        }
        VIR_FREE(cfg->hugetlbfs);

        if (p->type == VIR_CONF_LIST) {
            size_t len = 0;
            virConfValuePtr pp = p->list;

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

            if (len && VIR_ALLOC_N(cfg->hugetlbfs, len) < 0)
                goto cleanup;
            cfg->nhugetlbfs = len;

            pp = p->list;
            len = 0;
            while (pp) {
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[len],
                                                     pp->str, !len) < 0)
                    goto cleanup;
                len++;
                pp = pp->next;
            }
        } else {
            CHECK_TYPE("hugetlbfs_mount", VIR_CONF_STRING);
            if (STRNEQ(p->str, "")) {
                if (VIR_ALLOC_N(cfg->hugetlbfs, 1) < 0)
                    goto cleanup;
                cfg->nhugetlbfs = 1;
                if (virQEMUDriverConfigHugeTLBFSInit(&cfg->hugetlbfs[0],
                                                     p->str, true) < 0)
                    goto cleanup;
            }
        }
    }

    GET_VALUE_STR("bridge_helper", cfg->bridgeHelperName);

    GET_VALUE_BOOL("mac_filter", cfg->macFilter);

    GET_VALUE_BOOL("relaxed_acs_check", cfg->relaxedACS);
    GET_VALUE_BOOL("clear_emulator_capabilities", cfg->clearEmulatorCapabilities);
    GET_VALUE_BOOL("allow_disk_format_probing", cfg->allowDiskFormatProbing);
    GET_VALUE_BOOL("set_process_name", cfg->setProcessName);
    GET_VALUE_ULONG("max_processes", cfg->maxProcesses);
    GET_VALUE_ULONG("max_files", cfg->maxFiles);

    GET_VALUE_STR("lock_manager", cfg->lockManagerName);
    GET_VALUE_STR("stdio_handler", stdioHandler);
    if (stdioHandler) {
        if (STREQ(stdioHandler, "logd")) {
            cfg->stdioLogD = true;
        } else if (STREQ(stdioHandler, "file")) {
            cfg->stdioLogD = false;
        } else {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                           _("Unknown stdio handler %s"),
                           stdioHandler);
            VIR_FREE(stdioHandler);
            goto cleanup;
        }
        VIR_FREE(stdioHandler);
    }

    GET_VALUE_ULONG("max_queued", cfg->maxQueuedJobs);

    GET_VALUE_LONG("keepalive_interval", cfg->keepAliveInterval);
    GET_VALUE_ULONG("keepalive_count", cfg->keepAliveCount);

    GET_VALUE_LONG("seccomp_sandbox", cfg->seccompSandbox);

    GET_VALUE_STR("migration_host", cfg->migrateHost);
    virStringStripIPv6Brackets(cfg->migrateHost);
    if (cfg->migrateHost &&
        (STRPREFIX(cfg->migrateHost, "localhost") ||
         virSocketAddrIsNumericLocalhost(cfg->migrateHost))) {
        virReportError(VIR_ERR_CONF_SYNTAX,
                       _("migration_host must not be the address of"
                         " the local machine: %s"),
                       cfg->migrateHost);
        goto cleanup;
    }

    GET_VALUE_STR("migration_address", cfg->migrationAddress);
    virStringStripIPv6Brackets(cfg->migrationAddress);
    if (cfg->migrationAddress &&
        (STRPREFIX(cfg->migrationAddress, "localhost") ||
         virSocketAddrIsNumericLocalhost(cfg->migrationAddress))) {
        virReportError(VIR_ERR_CONF_SYNTAX,
                       _("migration_address must not be the address of"
                         " the local machine: %s"),
                       cfg->migrationAddress);
        goto cleanup;
    }

    GET_VALUE_BOOL("log_timestamp", cfg->logTimestamp);

    if ((p = virConfGetValue(conf, "nvram"))) {
        size_t len;
        virConfValuePtr pp;

        CHECK_TYPE("nvram", VIR_CONF_LIST);

        virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
        /* 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",
                               _("nvram must be a list of strings"));
                goto cleanup;
            }
        }

        if (len && VIR_ALLOC_N(cfg->firmwares, len) < 0)
            goto cleanup;
        cfg->nfirmwares = len;

        for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
            if (VIR_ALLOC(cfg->firmwares[i]) < 0)
                goto cleanup;
            if (virFirmwareParse(pp->str, cfg->firmwares[i]) < 0)
                goto cleanup;
        }
    }

    ret = 0;

 cleanup:
    virConfFree(conf);
    return ret;
}
示例#16
0
/* Helper for ANIM_add_driver_with_target - Adds the actual driver */
static int add_driver_with_target(ReportList *UNUSED(reports),
                                  ID *dst_id,
                                  const char dst_path[],
                                  int dst_index,
                                  ID *src_id,
                                  const char src_path[],
                                  int src_index,
                                  PointerRNA *dst_ptr,
                                  PropertyRNA *dst_prop,
                                  PointerRNA *src_ptr,
                                  PropertyRNA *src_prop,
                                  short flag,
                                  int driver_type)
{
  FCurve *fcu;
  short add_mode = (flag & CREATEDRIVER_WITH_FMODIFIER) ? 2 : 1;
  const char *prop_name = RNA_property_identifier(src_prop);

  /* Create F-Curve with Driver */
  fcu = verify_driver_fcurve(dst_id, dst_path, dst_index, add_mode);

  if (fcu && fcu->driver) {
    ChannelDriver *driver = fcu->driver;
    DriverVar *dvar;

    /* Set the type of the driver */
    driver->type = driver_type;

    /* Set driver expression, so that the driver works out of the box
     *
     * The following checks define a bit of "autodetection magic" we use
     * to ensure that the drivers will behave as expected out of the box
     * when faced with properties with different units.
     */
    /* XXX: if we have N-1 mapping, should we include all those in the expression? */
    if ((RNA_property_unit(dst_prop) == PROP_UNIT_ROTATION) &&
        (RNA_property_unit(src_prop) != PROP_UNIT_ROTATION)) {
      /* Rotation Destination:  normal -> radians,  so convert src to radians
       * (However, if both input and output is a rotation, don't apply such corrections)
       */
      BLI_strncpy(driver->expression, "radians(var)", sizeof(driver->expression));
    }
    else if ((RNA_property_unit(src_prop) == PROP_UNIT_ROTATION) &&
             (RNA_property_unit(dst_prop) != PROP_UNIT_ROTATION)) {
      /* Rotation Source:  radians -> normal,  so convert src to degrees
       * (However, if both input and output is a rotation, don't apply such corrections)
       */
      BLI_strncpy(driver->expression, "degrees(var)", sizeof(driver->expression));
    }
    else {
      /* Just a normal property without any unit problems */
      BLI_strncpy(driver->expression, "var", sizeof(driver->expression));
    }

    /* Create a driver variable for the target
     *   - For transform properties, we want to automatically use "transform channel" instead
     *     (The only issue is with quat rotations vs euler channels...)
     *   - To avoid problems with transform properties depending on the final transform that they
     *     control (thus creating pseudo-cycles - see T48734), we don't use transform channels
     *     when both the source and destinations are in same places.
     */
    dvar = driver_add_new_variable(driver);

    if (ELEM(src_ptr->type, &RNA_Object, &RNA_PoseBone) &&
        (STREQ(prop_name, "location") || STREQ(prop_name, "scale") ||
         STRPREFIX(prop_name, "rotation_")) &&
        (src_ptr->data != dst_ptr->data)) {
      /* Transform Channel */
      DriverTarget *dtar;

      driver_change_variable_type(dvar, DVAR_TYPE_TRANSFORM_CHAN);
      dtar = &dvar->targets[0];

      /* Bone or Object target? */
      dtar->id = src_id;
      dtar->idtype = GS(src_id->name);

      if (src_ptr->type == &RNA_PoseBone) {
        RNA_string_get(src_ptr, "name", dtar->pchan_name);
      }

      /* Transform channel depends on type */
      if (STREQ(prop_name, "location")) {
        if (src_index == 2) {
          dtar->transChan = DTAR_TRANSCHAN_LOCZ;
        }
        else if (src_index == 1) {
          dtar->transChan = DTAR_TRANSCHAN_LOCY;
        }
        else {
          dtar->transChan = DTAR_TRANSCHAN_LOCX;
        }
      }
      else if (STREQ(prop_name, "scale")) {
        if (src_index == 2) {
          dtar->transChan = DTAR_TRANSCHAN_SCALEZ;
        }
        else if (src_index == 1) {
          dtar->transChan = DTAR_TRANSCHAN_SCALEY;
        }
        else {
          dtar->transChan = DTAR_TRANSCHAN_SCALEX;
        }
      }
      else {
        /* XXX: With quaternions and axis-angle, this mapping might not be correct...
         *      But since those have 4 elements instead, there's not much we can do
         */
        if (src_index == 2) {
          dtar->transChan = DTAR_TRANSCHAN_ROTZ;
        }
        else if (src_index == 1) {
          dtar->transChan = DTAR_TRANSCHAN_ROTY;
        }
        else {
          dtar->transChan = DTAR_TRANSCHAN_ROTX;
        }
      }
    }
    else {
      /* Single RNA Property */
      DriverTarget *dtar = &dvar->targets[0];

      /* ID is as-is */
      dtar->id = src_id;
      dtar->idtype = GS(src_id->name);

      /* Need to make a copy of the path (or build one with array index built in) */
      if (RNA_property_array_check(src_prop)) {
        dtar->rna_path = BLI_sprintfN("%s[%d]", src_path, src_index);
      }
      else {
        dtar->rna_path = BLI_strdup(src_path);
      }
    }
  }

  /* set the done status */
  return (fcu != NULL);
}
示例#17
0
int linuxNodeInfoCPUPopulate(FILE *cpuinfo,
                             const char *sysfs_dir,
                             virNodeInfoPtr nodeinfo)
{
    char line[1024];
    DIR *nodedir = NULL;
    struct dirent *nodedirent = NULL;
    int cpus, cores, socks, threads, offline = 0;
    unsigned int node;
    int ret = -1;
    char *sysfs_nodedir = NULL;
    char *sysfs_cpudir = NULL;

    /* Start with parsing CPU clock speed from /proc/cpuinfo */
    while (fgets(line, sizeof(line), cpuinfo) != NULL) {
# if defined(__x86_64__) || \
    defined(__amd64__)  || \
    defined(__i386__)
        char *buf = line;
        if (STRPREFIX(buf, "cpu MHz")) {
            char *p;
            unsigned int ui;

            buf += 7;
            while (*buf && c_isspace(*buf))
                buf++;

            if (*buf != ':' || !buf[1]) {
                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                               _("parsing cpu MHz from cpuinfo"));
                goto cleanup;
            }

            if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0 &&
                /* Accept trailing fractional part.  */
                (*p == '\0' || *p == '.' || c_isspace(*p)))
                nodeinfo->mhz = ui;
        }

# elif defined(__powerpc__) || \
      defined(__powerpc64__)
        char *buf = line;
        if (STRPREFIX(buf, "clock")) {
            char *p;
            unsigned int ui;

            buf += 5;
            while (*buf && c_isspace(*buf))
                buf++;

            if (*buf != ':' || !buf[1]) {
                virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                               _("parsing cpu MHz from cpuinfo"));
                goto cleanup;
            }

            if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0 &&
                /* Accept trailing fractional part.  */
                (*p == '\0' || *p == '.' || c_isspace(*p)))
                nodeinfo->mhz = ui;
            /* No other interesting infos are available in /proc/cpuinfo.
             * However, there is a line identifying processor's version,
             * identification and machine, but we don't want it to be caught
             * and parsed in next iteration, because it is not in expected
             * format and thus lead to error. */
        }
# elif defined(__arm__)
        char *buf = line;
        if (STRPREFIX(buf, "BogoMIPS")) {
            char *p;
            unsigned int ui;

            buf += 8;
            while (*buf && c_isspace(*buf))
                buf++;

            if (*buf != ':' || !buf[1]) {
                virReportError(VIR_ERR_INTERNAL_ERROR,
                               "%s", _("parsing cpu MHz from cpuinfo"));
                goto cleanup;
            }

            if (virStrToLong_ui(buf+1, &p, 10, &ui) == 0
                /* Accept trailing fractional part.  */
                && (*p == '\0' || *p == '.' || c_isspace(*p)))
                nodeinfo->mhz = ui;
        }
# elif defined(__s390__) || \
      defined(__s390x__)
        /* s390x has no realistic value for CPU speed,
         * assign a value of zero to signify this */
        nodeinfo->mhz = 0;
# else
#  warning Parser for /proc/cpuinfo needs to be adapted for your architecture
# endif
    }

    /* OK, we've parsed clock speed out of /proc/cpuinfo. Get the
     * core, node, socket, thread and topology information from /sys
     */
    if (virAsprintf(&sysfs_nodedir, "%s/node", sysfs_dir) < 0)
        goto cleanup;

    if (!(nodedir = opendir(sysfs_nodedir))) {
        /* the host isn't probably running a NUMA architecture */
        goto fallback;
    }

    errno = 0;
    while ((nodedirent = readdir(nodedir))) {
        if (sscanf(nodedirent->d_name, "node%u", &node) != 1)
            continue;

        nodeinfo->nodes++;

        if (virAsprintf(&sysfs_cpudir, "%s/node/%s",
                        sysfs_dir, nodedirent->d_name) < 0)
            goto cleanup;

        if ((cpus = virNodeParseNode(sysfs_cpudir, &socks, &cores,
                                     &threads, &offline)) < 0)
            goto cleanup;

        VIR_FREE(sysfs_cpudir);

        nodeinfo->cpus += cpus;

        if (socks > nodeinfo->sockets)
            nodeinfo->sockets = socks;

        if (cores > nodeinfo->cores)
            nodeinfo->cores = cores;

        if (threads > nodeinfo->threads)
            nodeinfo->threads = threads;

        errno = 0;
    }

    if (errno) {
        virReportSystemError(errno, _("problem reading %s"), sysfs_nodedir);
        goto cleanup;
    }

    if (nodeinfo->cpus && nodeinfo->nodes)
        goto done;

fallback:
    VIR_FREE(sysfs_cpudir);

    if (virAsprintf(&sysfs_cpudir, "%s/cpu", sysfs_dir) < 0)
        goto cleanup;

    if ((cpus = virNodeParseNode(sysfs_cpudir, &socks, &cores,
                                 &threads, &offline)) < 0)
        goto cleanup;

    nodeinfo->nodes = 1;
    nodeinfo->cpus = cpus;
    nodeinfo->sockets = socks;
    nodeinfo->cores = cores;
    nodeinfo->threads = threads;

done:
    /* There should always be at least one cpu, socket, node, and thread. */
    if (nodeinfo->cpus == 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("no CPUs found"));
        goto cleanup;
    }

    if (nodeinfo->sockets == 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("no sockets found"));
        goto cleanup;
    }

    if (nodeinfo->threads == 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("no threads found"));
        goto cleanup;
    }

    /* Now check if the topology makes sense. There are machines that don't
     * expose their real number of nodes or for example the AMD Bulldozer
     * architecture that exposes their Clustered integer core modules as both
     * threads and cores. This approach throws off our detection. Unfortunately
     * the nodeinfo structure isn't designed to carry the full topology so
     * we're going to lie about the detected topology to notify the user
     * to check the host capabilities for the actual topology. */
    if ((nodeinfo->nodes *
         nodeinfo->sockets *
         nodeinfo->cores *
         nodeinfo->threads) != (nodeinfo->cpus + offline)) {
        nodeinfo->nodes = 1;
        nodeinfo->sockets = 1;
        nodeinfo->cores = nodeinfo->cpus + offline;
        nodeinfo->threads = 1;
    }

    ret = 0;

cleanup:
    /* don't shadow a more serious error */
    if (nodedir && closedir(nodedir) < 0 && ret >= 0) {
        virReportSystemError(errno, _("problem closing %s"), sysfs_nodedir);
        ret = -1;
    }

    VIR_FREE(sysfs_nodedir);
    VIR_FREE(sysfs_cpudir);
    return ret;
}
示例#18
0
static int
virHostMemGetStatsLinux(FILE *meminfo,
                        int cellNum,
                        virNodeMemoryStatsPtr params,
                        int *nparams)
{
    int ret = -1;
    size_t i = 0, j = 0, k = 0;
    int found = 0;
    int nr_param;
    char line[1024];
    char meminfo_hdr[VIR_NODE_MEMORY_STATS_FIELD_LENGTH];
    unsigned long val;
    struct field_conv {
        const char *meminfo_hdr;  /* meminfo header */
        const char *field;        /* MemoryStats field name */
    } field_conv[] = {
        {"MemTotal:", VIR_NODE_MEMORY_STATS_TOTAL},
        {"MemFree:",  VIR_NODE_MEMORY_STATS_FREE},
        {"Buffers:",  VIR_NODE_MEMORY_STATS_BUFFERS},
        {"Cached:",   VIR_NODE_MEMORY_STATS_CACHED},
        {NULL,        NULL}
    };

    if (cellNum == VIR_NODE_MEMORY_STATS_ALL_CELLS) {
        nr_param = LINUX_NB_MEMORY_STATS_ALL;
    } else {
        nr_param = LINUX_NB_MEMORY_STATS_CELL;
    }

    if ((*nparams) == 0) {
        /* Current number of memory stats supported by linux */
        *nparams = nr_param;
        ret = 0;
        goto cleanup;
    }

    if ((*nparams) != nr_param) {
        virReportInvalidArg(nparams,
                            _("nparams in %s must be %d"),
                            __FUNCTION__, nr_param);
        goto cleanup;
    }

    while (fgets(line, sizeof(line), meminfo) != NULL) {
        char *buf = line;

        if (STRPREFIX(buf, "Node ")) {
            /*
             * /sys/devices/system/node/nodeX/meminfo format is below.
             * So, skip prefix "Node XX ".
             *
             * Node 0 MemTotal:        8386980 kB
             * Node 0 MemFree:         5300920 kB
             *         :
             */
            char *p;

            p = buf;
            for (i = 0; i < 2; i++) {
                p = strchr(p, ' ');
                if (p == NULL) {
                    virReportError(VIR_ERR_INTERNAL_ERROR,
                                   "%s", _("no prefix found"));
                    goto cleanup;
                }
                p++;
            }
            buf = p;
        }

        if (sscanf(buf, "%s %lu kB", meminfo_hdr, &val) < 2)
            continue;

        for (j = 0; field_conv[j].meminfo_hdr != NULL; j++) {
            struct field_conv *convp = &field_conv[j];

            if (STREQ(meminfo_hdr, convp->meminfo_hdr)) {
                virNodeMemoryStatsPtr param = &params[k++];

                if (virStrcpyStatic(param->field, convp->field) == NULL) {
                    virReportError(VIR_ERR_INTERNAL_ERROR,
                                   "%s", _("Field kernel memory too long for destination"));
                    goto cleanup;
                }
                param->value = val;
                found++;
                break;
            }
        }
        if (found >= nr_param)
            break;
    }

    if (found == 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       "%s", _("no available memory line found"));
        goto cleanup;
    }

    ret = 0;

 cleanup:
    return ret;
}
示例#19
0
static int make_controller(const char *path, mode_t mode)
{
    int ret = -1;
    const char *controller;

    if (!STRPREFIX(path, fakesysfscgroupdir)) {
        errno = EINVAL;
        return -1;
    }
    controller = path + strlen(fakesysfscgroupdir) + 1;

    if (STREQ(controller, "cpu"))
        return symlink("cpu,cpuacct", path);
    if (STREQ(controller, "cpuacct"))
        return symlink("cpu,cpuacct", path);

    if (real_mkdir(path, mode) < 0)
        goto cleanup;

# define MAKE_FILE(name, value)                 \
    do {                                        \
        if (make_file(path, name, value) < 0)   \
            goto cleanup;                       \
    } while (0)

    if (STRPREFIX(controller, "cpu,cpuacct")) {
        MAKE_FILE("cpu.cfs_period_us", "100000\n");
        MAKE_FILE("cpu.cfs_quota_us", "-1\n");
        MAKE_FILE("cpu.rt_period_us", "1000000\n");
        MAKE_FILE("cpu.rt_runtime_us", "950000\n");
        MAKE_FILE("cpu.shares", "1024\n");
        MAKE_FILE("cpu.stat",
                  "nr_periods 0\n"
                  "nr_throttled 0\n"
                  "throttled_time 0\n");
        MAKE_FILE("cpuacct.stat",
                  "user 216687025\n"
                  "system 43421396\n");
        MAKE_FILE("cpuacct.usage", "2787788855799582\n");
        MAKE_FILE("cpuacct.usage_percpu",
                  "7059492996 0 0 0 0 0 0 0 4180532496 0 0 0 0 0 0 0 "
                  "1957541268 0 0 0 0 0 0 0 2065932204 0 0 0 0 0 0 0 "
                  "18228689414 0 0 0 0 0 0 0 4245525148 0 0 0 0 0 0 0 "
                  "2911161568 0 0 0 0 0 0 0 1407758136 0 0 0 0 0 0 0 "
                  "1836807700 0 0 0 0 0 0 0 1065296618 0 0 0 0 0 0 0 "
                  "2046213266 0 0 0 0 0 0 0 747889778 0 0 0 0 0 0 0 "
                  "709566900 0 0 0 0 0 0 0 444777342 0 0 0 0 0 0 0 "
                  "5683512916 0 0 0 0 0 0 0 635751356 0 0 0 0 0 0 0\n");
    } else if (STRPREFIX(controller, "cpuset")) {
        MAKE_FILE("cpuset.cpu_exclusive", "1\n");
        if (STREQ(controller, "cpuset"))
            MAKE_FILE("cpuset.cpus", "0-1");
        else
            MAKE_FILE("cpuset.cpus", ""); /* Values don't inherit */
        MAKE_FILE("cpuset.mem_exclusive", "1\n");
        MAKE_FILE("cpuset.mem_hardwall", "0\n");
        MAKE_FILE("cpuset.memory_migrate", "0\n");
        MAKE_FILE("cpuset.memory_pressure", "0\n");
        MAKE_FILE("cpuset.memory_pressure_enabled", "0\n");
        MAKE_FILE("cpuset.memory_spread_page", "0\n");
        MAKE_FILE("cpuset.memory_spread_slab", "0\n");
        if (STREQ(controller, "cpuset"))
            MAKE_FILE("cpuset.mems", "0");
        else
            MAKE_FILE("cpuset.mems", ""); /* Values don't inherit */
        MAKE_FILE("cpuset.sched_load_balance", "1\n");
        MAKE_FILE("cpuset.sched_relax_domain_level", "-1\n");
    } else if (STRPREFIX(controller, "memory")) {
        MAKE_FILE("memory.failcnt", "0\n");
        MAKE_FILE("memory.force_empty", ""); /* Write only */
        MAKE_FILE("memory.kmem.tcp.failcnt", "0\n");
        MAKE_FILE("memory.kmem.tcp.limit_in_bytes", "9223372036854775807\n");
        MAKE_FILE("memory.kmem.tcp.max_usage_in_bytes", "0\n");
        MAKE_FILE("memory.kmem.tcp.usage_in_bytes", "16384\n");
        MAKE_FILE("memory.limit_in_bytes", "9223372036854775807\n");
        MAKE_FILE("memory.max_usage_in_bytes", "0\n");
        MAKE_FILE("memory.memsw.failcnt", ""); /* Not supported */
        MAKE_FILE("memory.memsw.limit_in_bytes", ""); /* Not supported */
        MAKE_FILE("memory.memsw.max_usage_in_bytes", ""); /* Not supported */
        MAKE_FILE("memory.memsw.usage_in_bytes", ""); /* Not supported */
        MAKE_FILE("memory.move_charge_at_immigrate", "0\n");
        MAKE_FILE("memory.numa_stat",
                  "total=367664 N0=367664\n"
                  "file=314764 N0=314764\n"
                  "anon=51999 N0=51999\n"
                  "unevictable=901 N0=901\n");
        MAKE_FILE("memory.oom_control",
                  "oom_kill_disable 0\n"
                  "under_oom 0\n");
        MAKE_FILE("memory.soft_limit_in_bytes", "9223372036854775807\n");
        MAKE_FILE("memory.stat",
                  "cache 1336619008\n"
                  "rss 97792000\n"
                  "mapped_file 42090496\n"
                  "pgpgin 13022605027\n"
                  "pgpgout 13023820533\n"
                  "pgfault 54429417056\n"
                  "pgmajfault 315715\n"
                  "inactive_anon 145887232\n"
                  "active_anon 67100672\n"
                  "inactive_file 627400704\n"
                  "active_file 661872640\n"
                  "unevictable 3690496\n"
                  "hierarchical_memory_limit 9223372036854775807\n"
                  "total_cache 1336635392\n"
                  "total_rss 118689792\n"
                  "total_mapped_file 42106880\n"
                  "total_pgpgin 13022606816\n"
                  "total_pgpgout 13023820793\n"
                  "total_pgfault 54429422313\n"
                  "total_pgmajfault 315715\n"
                  "total_inactive_anon 145891328\n"
                  "total_active_anon 88010752\n"
                  "total_inactive_file 627400704\n"
                  "total_active_file 661872640\n"
                  "total_unevictable 3690496\n"
                  "recent_rotated_anon 112807028\n"
                  "recent_rotated_file 2547948\n"
                  "recent_scanned_anon 113796164\n"
                  "recent_scanned_file 8199863\n");
        MAKE_FILE("memory.swappiness", "60\n");
        MAKE_FILE("memory.usage_in_bytes", "1455321088\n");
        MAKE_FILE("memory.use_hierarchy", "0\n");
    } else if (STRPREFIX(controller, "freezer")) {
        MAKE_FILE("freezer.state", "THAWED");
    } else if (STRPREFIX(controller, "blkio")) {
        MAKE_FILE("blkio.io_merged",
                  "8:0 Read 1100949\n"
                  "8:0 Write 2248076\n"
                  "8:0 Sync 63063\n"
                  "8:0 Async 3285962\n"
                  "8:0 Total 3349025\n");
        MAKE_FILE("blkio.io_queued",
                  "8:0 Read 0\n"
                  "8:0 Write 0\n"
                  "8:0 Sync 0\n"
                  "8:0 Async 0\n"
                  "8:0 Total 0\n");
        MAKE_FILE("blkio.io_service_bytes",
                  "8:0 Read 59542078464\n"
                  "8:0 Write 397369182208\n"
                  "8:0 Sync 234080922624\n"
                  "8:0 Async 222830338048\n"
                  "8:0 Total 456911260672\n");
        MAKE_FILE("blkio.io_serviced",
                  "8:0 Read 3402504\n"
                  "8:0 Write 14966516\n"
                  "8:0 Sync 12064031\n"
                  "8:0 Async 6304989\n"
                  "8:0 Total 18369020\n");
        MAKE_FILE("blkio.io_service_time",
                  "8:0 Read 10747537542349\n"
                  "8:0 Write 9200028590575\n"
                  "8:0 Sync 6449319855381\n"
                  "8:0 Async 13498246277543\n"
                  "8:0 Total 19947566132924\n");
        MAKE_FILE("blkio.io_wait_time",
                  "8:0 Read 14687514824889\n"
                  "8:0 Write 357748452187691\n"
                  "8:0 Sync 55296974349413\n"
                  "8:0 Async 317138992663167\n"
                  "8:0 Total 372435967012580\n");
        MAKE_FILE("blkio.reset_stats", ""); /* Write only */
        MAKE_FILE("blkio.sectors", "8:0 892404806\n");
        MAKE_FILE("blkio.throttle.io_service_bytes",
                  "8:0 Read 59542107136\n"
                  "8:0 Write 411440480256\n"
                  "8:0 Sync 248486822912\n"
                  "8:0 Async 222495764480\n"
                  "8:0 Total 470982587392\n"
                  "9:0 Read 59542107137\n"
                  "9:0 Write 411440480257\n"
                  "9:0 Sync 248486822912\n"
                  "9:0 Async 222495764480\n"
                  "9:0 Total 470982587392\n");
        MAKE_FILE("blkio.throttle.io_serviced",
                  "8:0 Read 4832583\n"
                  "8:0 Write 36641903\n"
                  "8:0 Sync 30723171\n"
                  "8:0 Async 10751315\n"
                  "8:0 Total 41474486\n"
                  "9:0 Read 4832584\n"
                  "9:0 Write 36641904\n"
                  "9:0 Sync 30723171\n"
                  "9:0 Async 10751315\n"
                  "9:0 Total 41474486\n");
        MAKE_FILE("blkio.throttle.read_bps_device", "");
        MAKE_FILE("blkio.throttle.read_iops_device", "");
        MAKE_FILE("blkio.throttle.write_bps_device", "");
        MAKE_FILE("blkio.throttle.write_iops_device", "");
        MAKE_FILE("blkio.time", "8:0 61019089\n");
        MAKE_FILE("blkio.weight", "1000\n");
        MAKE_FILE("blkio.weight_device", "");

    } else {
        errno = EINVAL;
        goto cleanup;
    }

    ret = 0;
 cleanup:
    return ret;
}
static int
hypervNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info)
{
    int result = -1;
    hypervPrivate *priv = conn->privateData;
    virBuffer query = VIR_BUFFER_INITIALIZER;
    Win32_ComputerSystem *computerSystem = NULL;
    Win32_Processor *processorList = NULL;
    Win32_Processor *processor = NULL;
    char *tmp;

    memset(info, 0, sizeof(*info));

    virBufferAddLit(&query, WIN32_COMPUTERSYSTEM_WQL_SELECT);

    /* Get Win32_ComputerSystem */
    if (hypervGetWin32ComputerSystemList(priv, &query, &computerSystem) < 0) {
        goto cleanup;
    }

    if (computerSystem == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Could not lookup %s"),
                       "Win32_ComputerSystem");
        goto cleanup;
    }

    /* Get Win32_Processor list */
    virBufferAsprintf(&query,
                      "associators of "
                      "{Win32_ComputerSystem.Name=\"%s\"} "
                      "where AssocClass = Win32_ComputerSystemProcessor "
                      "ResultClass = Win32_Processor",
                      computerSystem->data->Name);

    if (hypervGetWin32ProcessorList(priv, &query, &processorList) < 0) {
        goto cleanup;
    }

    if (processorList == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Could not lookup %s"),
                       "Win32_Processor");
        goto cleanup;
    }

    /* Strip the string to fit more relevant information in 32 chars */
    tmp = processorList->data->Name;

    while (*tmp != '\0') {
        if (STRPREFIX(tmp, "  ")) {
            memmove(tmp, tmp + 1, strlen(tmp + 1) + 1);
            continue;
        } else if (STRPREFIX(tmp, "(R)") || STRPREFIX(tmp, "(C)")) {
            memmove(tmp, tmp + 3, strlen(tmp + 3) + 1);
            continue;
        } else if (STRPREFIX(tmp, "(TM)")) {
            memmove(tmp, tmp + 4, strlen(tmp + 4) + 1);
            continue;
        }

        ++tmp;
    }

    /* Fill struct */
    if (virStrncpy(info->model, processorList->data->Name,
                   sizeof(info->model) - 1, sizeof(info->model)) == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("CPU model %s too long for destination"),
                       processorList->data->Name);
        goto cleanup;
    }

    info->memory = computerSystem->data->TotalPhysicalMemory / 1024; /* byte to kilobyte */
    info->mhz = processorList->data->MaxClockSpeed;
    info->nodes = 1;
    info->sockets = 0;

    for (processor = processorList; processor != NULL;
         processor = processor->next) {
        ++info->sockets;
    }

    info->cores = processorList->data->NumberOfCores;
    info->threads = info->cores / processorList->data->NumberOfLogicalProcessors;
    info->cpus = info->sockets * info->cores;

    result = 0;

 cleanup:
    hypervFreeObject(priv, (hypervObject *)computerSystem);
    hypervFreeObject(priv, (hypervObject *)processorList);

    return result;
}
示例#21
0
/* Format:
 *      <arch> <model>
 * qemu-0.13 encloses some model names in []:
 *      <arch> [<model>]
 */
static int
qemuCapsParseX86Models(const char *output,
                       unsigned int *retcount,
                       const char ***retcpus)
{
    const char *p = output;
    const char *next;
    unsigned int count = 0;
    const char **cpus = NULL;
    int i;

    do {
        const char *t;

        if ((next = strchr(p, '\n')))
            next++;

        if (!(t = strchr(p, ' ')) || (next && t >= next))
            continue;

        if (!STRPREFIX(p, "x86"))
            continue;

        p = t;
        while (*p == ' ')
            p++;

        if (*p == '\0' || *p == '\n')
            continue;

        if (retcpus) {
            unsigned int len;

            if (VIR_REALLOC_N(cpus, count + 1) < 0) {
                virReportOOMError();
                goto error;
            }

            if (next)
                len = next - p - 1;
            else
                len = strlen(p);

            if (len > 2 && *p == '[' && p[len - 1] == ']') {
                p++;
                len -= 2;
            }

            if (!(cpus[count] = strndup(p, len))) {
                virReportOOMError();
                goto error;
            }
        }
        count++;
    } while ((p = next));

    if (retcount)
        *retcount = count;
    if (retcpus)
        *retcpus = cpus;

    return 0;

error:
    if (cpus) {
        for (i = 0; i < count; i++)
            VIR_FREE(cpus[i]);
    }
    VIR_FREE(cpus);

    return -1;
}
示例#22
0
int main(int argc, char **argv) {
    int i, n;
    char **origenv;
    char **newenv;
    char *cwd;
    FILE *log = fopen(abs_builddir "/commandhelper.log", "w");

    if (!log)
        goto error;

    for (i = 1 ; i < argc ; i++) {
        fprintf(log, "ARG:%s\n", argv[i]);
    }

    origenv = environ;
    n = 0;
    while (*origenv != NULL) {
        n++;
        origenv++;
    }

    if (VIR_ALLOC_N(newenv, n) < 0) {
        exit(EXIT_FAILURE);
    }

    origenv = environ;
    n = i = 0;
    while (*origenv != NULL) {
        newenv[i++] = *origenv;
        n++;
        origenv++;
    }
    qsort(newenv, n, sizeof(newenv[0]), envsort);

    for (i = 0 ; i < n ; i++) {
        /* Ignore the variables used to instruct the loader into
         * behaving differently, as they could throw the tests off. */
        if (!STRPREFIX(newenv[i], "LD_"))
            fprintf(log, "ENV:%s\n", newenv[i]);
    }

    for (i = 0 ; i < sysconf(_SC_OPEN_MAX) ; i++) {
        int f;
        int closed;
        if (i == fileno(log))
            continue;
        closed = fcntl(i, F_GETFD, &f) == -1 &&
            errno == EBADF;
        if (!closed)
            fprintf(log, "FD:%d\n", i);
    }

    fprintf(log, "DAEMON:%s\n", getpgrp() == getsid(0) ? "yes" : "no");
    if (!(cwd = getcwd(NULL, 0)))
        return EXIT_FAILURE;
    if (strlen(cwd) > strlen(".../commanddata") &&
        STREQ(cwd + strlen(cwd) - strlen("/commanddata"), "/commanddata"))
        strcpy(cwd, ".../commanddata");
    fprintf(log, "CWD:%s\n", cwd);
    VIR_FREE(cwd);

    VIR_FORCE_FCLOSE(log);

    if (argc > 1 && STREQ(argv[1], "--close-stdin")) {
        if (freopen("/dev/null", "r", stdin) != stdin)
            goto error;
        usleep(100*1000);
    }

    char buf[1024];
    ssize_t got;

    fprintf(stdout, "BEGIN STDOUT\n");
    fflush(stdout);
    fprintf(stderr, "BEGIN STDERR\n");
    fflush(stderr);

    for (;;) {
        got = read(STDIN_FILENO, buf, sizeof(buf));
        if (got < 0)
            goto error;
        if (got == 0)
            break;
        if (safewrite(STDOUT_FILENO, buf, got) != got)
            goto error;
        if (safewrite(STDERR_FILENO, buf, got) != got)
            goto error;
    }

    fprintf(stdout, "END STDOUT\n");
    fflush(stdout);
    fprintf(stderr, "END STDERR\n");
    fflush(stderr);

    return EXIT_SUCCESS;

error:
    return EXIT_FAILURE;
}
示例#23
0
文件: handle.c 项目: myyyy/libguestfs
guestfs_h *
guestfs_create_flags (unsigned flags, ...)
{
  guestfs_h *g;

  g = calloc (1, sizeof (*g));
  if (!g) return NULL;

  g->state = CONFIG;

  g->conn = NULL;

  guestfs_int_init_error_handler (g);
  g->abort_cb = abort;

  g->recovery_proc = 1;
  g->autosync = 1;

  g->memsize = DEFAULT_MEMSIZE;

  /* Start with large serial numbers so they are easy to spot
   * inside the protocol.
   */
  g->msg_next_serial = 0x00123400;

  /* Default is uniprocessor appliance. */
  g->smp = 1;

  g->path = strdup (GUESTFS_DEFAULT_PATH);
  if (!g->path) goto error;

#ifdef QEMU
  g->hv = strdup (QEMU);
#else
  /* configure --without-qemu, so set QEMU to something which will
   * definitely fail.  The user is expected to override the hypervisor
   * by setting an environment variable or calling set_hv.
   */
  g->hv = strdup ("false");
#endif
  if (!g->hv) goto error;

  /* Get program name. */
#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
  if (STRPREFIX (program_invocation_short_name, "lt-"))
    /* Remove libtool (lt-*) prefix from short name. */
    g->program = strdup (program_invocation_short_name + 3);
  else
    g->program = strdup (program_invocation_short_name);
#else
  g->program = strdup ("");
#endif
  if (!g->program) goto error;

  g->identifier = strdup ("");
  if (!g->identifier) goto error;

  if (guestfs_int_set_backend (g, DEFAULT_BACKEND) == -1) {
    warning (g, _("libguestfs was built with an invalid default backend, using 'direct' instead"));
    if (guestfs_int_set_backend (g, "direct") == -1) {
      warning (g, _("'direct' backend does not work"));
      goto error;
    }
  }

  if (!(flags & GUESTFS_CREATE_NO_ENVIRONMENT))
    ignore_value (guestfs_parse_environment (g));

  if (!(flags & GUESTFS_CREATE_NO_CLOSE_ON_EXIT)) {
    g->close_on_exit = true;

    /* Link the handles onto a global list. */
    gl_lock_lock (handles_lock);
    g->next = handles;
    handles = g;
    if (!atexit_handler_set) {
      atexit (close_handles);
      atexit_handler_set = 1;
    }
    gl_lock_unlock (handles_lock);
  }

  debug (g, "create: flags = %u, handle = %p, program = %s",
         flags, g, g->program);

  return g;

 error:
  guestfs_int_free_string_list (g->backend_settings);
  free (g->backend);
  free (g->identifier);
  free (g->program);
  free (g->path);
  free (g->hv);
  free (g->append);
  free (g);
  return NULL;
}
示例#24
0
/*
 * Constructs a argv suitable for launching uml with config defined
 * for a given virtual machine.
 */
virCommandPtr umlBuildCommandLine(virConnectPtr conn,
                                  struct uml_driver *driver,
                                  virDomainObjPtr vm)
{
    size_t i, j;
    virCommandPtr cmd;

    cmd = virCommandNew(vm->def->os.kernel);

    virCommandAddEnvPassCommon(cmd);

    //virCommandAddArgPair(cmd, "con0", "fd:0,fd:1");
    virCommandAddArgFormat(cmd, "mem=%lluK", vm->def->mem.cur_balloon);
    virCommandAddArgPair(cmd, "umid", vm->def->name);
    virCommandAddArgPair(cmd, "uml_dir", driver->monitorDir);

    if (vm->def->os.root)
        virCommandAddArgPair(cmd, "root", vm->def->os.root);

    for (i = 0; i < vm->def->ndisks; i++) {
        virDomainDiskDefPtr disk = vm->def->disks[i];

        if (!STRPREFIX(disk->dst, "ubd")) {
            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("unsupported disk type '%s'"), disk->dst);
            goto error;
        }

        virCommandAddArgPair(cmd, disk->dst, virDomainDiskGetSource(disk));
    }

    for (i = 0; i < vm->def->nnets; i++) {
        char *ret = umlBuildCommandLineNet(conn, vm->def, vm->def->nets[i], i);
        if (!ret)
            goto error;
        virCommandAddArg(cmd, ret);
        VIR_FREE(ret);
    }

    for (i = 0; i < UML_MAX_CHAR_DEVICE; i++) {
        virDomainChrDefPtr chr = NULL;
        char *ret = NULL;
        for (j = 0; j < vm->def->nconsoles; j++)
            if (vm->def->consoles[j]->target.port == i)
                chr = vm->def->consoles[j];
        if (chr)
            ret = umlBuildCommandLineChr(chr, "con", cmd);
        if (!ret)
            if (virAsprintf(&ret, "con%zu=none", i) < 0)
                goto error;
        virCommandAddArg(cmd, ret);
        VIR_FREE(ret);
    }

    for (i = 0; i < UML_MAX_CHAR_DEVICE; i++) {
        virDomainChrDefPtr chr = NULL;
        char *ret = NULL;
        for (j = 0; j < vm->def->nserials; j++)
            if (vm->def->serials[j]->target.port == i)
                chr = vm->def->serials[j];
        if (chr)
            ret = umlBuildCommandLineChr(chr, "ssl", cmd);
        if (!ret)
            if (virAsprintf(&ret, "ssl%zu=none", i) < 0)
                goto error;

        virCommandAddArg(cmd, ret);
        VIR_FREE(ret);
    }

    if (vm->def->os.cmdline) {
        char *args, *next_arg;
        char *cmdline;
        if (VIR_STRDUP(cmdline, vm->def->os.cmdline) < 0)
            goto error;

        args = cmdline;
        while (*args == ' ')
            args++;

        while (*args) {
            next_arg = umlNextArg(args);
            virCommandAddArg(cmd, args);
            args = next_arg;
        }
        VIR_FREE(cmdline);
    }

    return cmd;

 error:
    virCommandFree(cmd);
    return NULL;
}
示例#25
0
static int
libxlCapsInitGuests(libxl_ctx *ctx, virCapsPtr caps)
{
    const libxl_version_info *ver_info;
    int err;
    regex_t regex;
    char *str, *token;
    regmatch_t subs[4];
    char *saveptr = NULL;
    size_t i;
    virArch hostarch = caps->host.arch;

    struct guest_arch guest_archs[32];
    int nr_guest_archs = 0;

    memset(guest_archs, 0, sizeof(guest_archs));

    if ((ver_info = libxl_get_version_info(ctx)) == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Failed to get version info from libxenlight"));
        return -1;
    }

    err = regcomp(&regex, XEN_CAP_REGEX, REG_EXTENDED);
    if (err != 0) {
        char error[100];
        regerror(err, &regex, error, sizeof(error));
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Failed to compile regex %s"), error);
        return -1;
    }

    /* Format of capabilities string is documented in the code in
     * xen-unstable.hg/xen/arch/.../setup.c.
     *
     * It is a space-separated list of supported guest architectures.
     *
     * For x86:
     *    TYP-VER-ARCH[p]
     *    ^   ^   ^    ^
     *    |   |   |    +-- PAE supported
     *    |   |   +------- x86_32 or x86_64
     *    |   +----------- the version of Xen, eg. "3.0"
     *    +--------------- "xen" or "hvm" for para or full virt respectively
     *
     * For IA64:
     *    TYP-VER-ARCH[be]
     *    ^   ^   ^    ^
     *    |   |   |    +-- Big-endian supported
     *    |   |   +------- always "ia64"
     *    |   +----------- the version of Xen, eg. "3.0"
     *    +--------------- "xen" or "hvm" for para or full virt respectively
     */

    /* Split capabilities string into tokens. strtok_r is OK here because
     * we "own" the buffer.  Parse out the features from each token.
     */
    for (str = ver_info->capabilities, nr_guest_archs = 0;
         nr_guest_archs < sizeof(guest_archs) / sizeof(guest_archs[0])
                 && (token = strtok_r(str, " ", &saveptr)) != NULL;
         str = NULL) {
        if (regexec(&regex, token, sizeof(subs) / sizeof(subs[0]),
                    subs, 0) == 0) {
            int hvm = STRPREFIX(&token[subs[1].rm_so], "hvm");
            virArch arch;
            int pae = 0, nonpae = 0, ia64_be = 0;

            if (STRPREFIX(&token[subs[2].rm_so], "x86_32")) {
                arch = VIR_ARCH_I686;
                if (subs[3].rm_so != -1 &&
                    STRPREFIX(&token[subs[3].rm_so], "p"))
                    pae = 1;
                else
                    nonpae = 1;
            }
            else if (STRPREFIX(&token[subs[2].rm_so], "x86_64")) {
                arch = VIR_ARCH_X86_64;
            }
            else if (STRPREFIX(&token[subs[2].rm_so], "ia64")) {
                arch = VIR_ARCH_ITANIUM;
                if (subs[3].rm_so != -1 &&
                    STRPREFIX(&token[subs[3].rm_so], "be"))
                    ia64_be = 1;
            }
            else if (STRPREFIX(&token[subs[2].rm_so], "powerpc64")) {
                arch = VIR_ARCH_PPC64;
            } else if (STRPREFIX(&token[subs[2].rm_so], "armv7l")) {
                arch = VIR_ARCH_ARMV7L;
            } else if (STRPREFIX(&token[subs[2].rm_so], "aarch64")) {
                arch = VIR_ARCH_AARCH64;
            } else {
                continue;
            }

            /* Search for existing matching (model,hvm) tuple */
            for (i = 0; i < nr_guest_archs; i++) {
                if ((guest_archs[i].arch == arch) &&
                    guest_archs[i].hvm == hvm)
                    break;
            }

            /* Too many arch flavours - highly unlikely ! */
            if (i >= ARRAY_CARDINALITY(guest_archs))
                continue;
            /* Didn't find a match, so create a new one */
            if (i == nr_guest_archs)
                nr_guest_archs++;

            guest_archs[i].arch = arch;
            guest_archs[i].hvm = hvm;

            /* Careful not to overwrite a previous positive
               setting with a negative one here - some archs
               can do both pae & non-pae, but Xen reports
               separately capabilities so we're merging archs */
            if (pae)
                guest_archs[i].pae = pae;
            if (nonpae)
                guest_archs[i].nonpae = nonpae;
            if (ia64_be)
                guest_archs[i].ia64_be = ia64_be;
        }
    }
    regfree(&regex);

    for (i = 0; i < nr_guest_archs; ++i) {
        virCapsGuestPtr guest;
        char const *const xen_machines[] = {guest_archs[i].hvm ? "xenfv" : "xenpv"};
        virCapsGuestMachinePtr *machines;

        if ((machines = virCapabilitiesAllocMachines(xen_machines, 1)) == NULL)
            return -1;

        if ((guest = virCapabilitiesAddGuest(caps,
                                             guest_archs[i].hvm ? "hvm" : "xen",
                                             guest_archs[i].arch,
                                              "qemu-dm",
                                             (guest_archs[i].hvm ?
                                              "hvmloader" : NULL),
                                             1,
                                             machines)) == NULL) {
            virCapabilitiesFreeMachines(machines, 1);
            return -1;
        }
        machines = NULL;

        if (virCapabilitiesAddGuestDomain(guest,
                                          "xen",
                                          NULL,
                                          NULL,
                                          0,
                                          NULL) == NULL)
            return -1;

        if (guest_archs[i].pae &&
            virCapabilitiesAddGuestFeature(guest,
                                           "pae",
                                           1,
                                           0) == NULL)
            return -1;

        if (guest_archs[i].nonpae &&
            virCapabilitiesAddGuestFeature(guest,
                                           "nonpae",
                                           1,
                                           0) == NULL)
            return -1;

        if (guest_archs[i].ia64_be &&
            virCapabilitiesAddGuestFeature(guest,
                                           "ia64_be",
                                           1,
                                           0) == NULL)
            return -1;

        if (guest_archs[i].hvm) {
            if (virCapabilitiesAddGuestFeature(guest,
                                               "acpi",
                                               1,
                                               1) == NULL)
                return -1;

            if (virCapabilitiesAddGuestFeature(guest, "apic",
                                               1,
                                               0) == NULL)
                return -1;

            if (virCapabilitiesAddGuestFeature(guest,
                                               "hap",
                                               0,
                                               1) == NULL)
                return -1;
        }
    }

    return 0;
}
示例#26
0
/* qemuInterfaceBridgeConnect:
 * @def: the definition of the VM
 * @driver: qemu driver data
 * @net: pointer to the VM's interface description
 * @tapfd: array of file descriptor return value for the new device
 * @tapfdsize: number of file descriptors in @tapfd
 *
 * Called *only* called if actualType is VIR_DOMAIN_NET_TYPE_NETWORK or
 * VIR_DOMAIN_NET_TYPE_BRIDGE (i.e. if the connection is made with a tap
 * device connecting to a bridge device)
 */
int
qemuInterfaceBridgeConnect(virDomainDefPtr def,
                           virQEMUDriverPtr driver,
                           virDomainNetDefPtr net,
                           int *tapfd,
                           size_t *tapfdSize)
{
    const char *brname;
    int ret = -1;
    unsigned int tap_create_flags = VIR_NETDEV_TAP_CREATE_IFUP;
    bool template_ifname = false;
    virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
    const char *tunpath = "/dev/net/tun";

    if (net->backend.tap) {
        tunpath = net->backend.tap;
        if (!(virQEMUDriverIsPrivileged(driver))) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                           _("cannot use custom tap device in session mode"));
            goto cleanup;
        }
    }

    if (!(brname = virDomainNetGetActualBridgeName(net))) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Missing bridge name"));
        goto cleanup;
    }

    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)
            goto cleanup;
        /* avoid exposing vnet%d in getXMLDesc or error outputs */
        template_ifname = true;
    }

    if (net->model && STREQ(net->model, "virtio"))
        tap_create_flags |= VIR_NETDEV_TAP_CREATE_VNET_HDR;

    if (virQEMUDriverIsPrivileged(driver)) {
        if (virNetDevTapCreateInBridgePort(brname, &net->ifname, &net->mac,
                                           def->uuid, tunpath, tapfd, *tapfdSize,
                                           virDomainNetGetActualVirtPortProfile(net),
                                           virDomainNetGetActualVlan(net),
                                           tap_create_flags) < 0) {
            virDomainAuditNetDevice(def, net, tunpath, false);
            goto cleanup;
        }
        if (virDomainNetGetActualBridgeMACTableManager(net)
            == VIR_NETWORK_BRIDGE_MAC_TABLE_MANAGER_LIBVIRT) {
            /* libvirt is managing the FDB of the bridge this device
             * is attaching to, so we need to turn off learning and
             * unicast_flood on the device to prevent the kernel from
             * adding any FDB entries for it. We will add add an fdb
             * entry ourselves (during qemuInterfaceStartDevices(),
             * using the MAC address from the interface config.
             */
            if (virNetDevBridgePortSetLearning(brname, net->ifname, false) < 0)
                goto cleanup;
            if (virNetDevBridgePortSetUnicastFlood(brname, net->ifname, false) < 0)
                goto cleanup;
        }
    } else {
        if (qemuCreateInBridgePortWithHelper(cfg, brname,
                                             &net->ifname,
                                             tapfd, tap_create_flags) < 0) {
            virDomainAuditNetDevice(def, net, tunpath, false);
            goto cleanup;
        }
        /* qemuCreateInBridgePortWithHelper can only create a single FD */
        if (*tapfdSize > 1) {
            VIR_WARN("Ignoring multiqueue network request");
            *tapfdSize = 1;
        }
    }

    virDomainAuditNetDevice(def, net, tunpath, true);

    if (cfg->macFilter &&
        ebtablesAddForwardAllowIn(driver->ebtables,
                                  net->ifname,
                                  &net->mac) < 0)
        goto cleanup;

    if (net->filter &&
        virDomainConfNWFilterInstantiate(def->uuid, net) < 0) {
        goto cleanup;
    }

    ret = 0;

 cleanup:
    if (ret < 0) {
        size_t i;
        for (i = 0; i < *tapfdSize && tapfd[i] >= 0; i++)
            VIR_FORCE_CLOSE(tapfd[i]);
        if (template_ifname)
            VIR_FREE(net->ifname);
    }
    virObjectUnref(cfg);

    return ret;
}
示例#27
0
/* qemuInterfaceEthernetConnect:
 * @def: the definition of the VM
 * @driver: qemu driver data
 * @net: pointer to the VM's interface description
 * @tapfd: array of file descriptor return value for the new device
 * @tapfdsize: number of file descriptors in @tapfd
 *
 * Called *only* called if actualType is VIR_DOMAIN_NET_TYPE_ETHERNET
 * (i.e. if the connection is made with a tap device)
 */
int
qemuInterfaceEthernetConnect(virDomainDefPtr def,
                           virQEMUDriverPtr driver,
                           virDomainNetDefPtr net,
                           int *tapfd,
                           size_t tapfdSize)
{
    virMacAddr tapmac;
    int ret = -1;
    unsigned int tap_create_flags = VIR_NETDEV_TAP_CREATE_IFUP;
    bool template_ifname = false;
    virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
    const char *tunpath = "/dev/net/tun";

    if (net->backend.tap) {
        tunpath = net->backend.tap;
        if (!virQEMUDriverIsPrivileged(driver)) {
            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                           _("cannot use custom tap device in session mode"));
            goto cleanup;
        }
    }

    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)
            goto cleanup;
        /* avoid exposing vnet%d in getXMLDesc or error outputs */
        template_ifname = true;
    }

    if (net->model && STREQ(net->model, "virtio"))
        tap_create_flags |= VIR_NETDEV_TAP_CREATE_VNET_HDR;

    if (virNetDevTapCreate(&net->ifname, tunpath, tapfd, tapfdSize,
                           tap_create_flags) < 0) {
        virDomainAuditNetDevice(def, net, tunpath, false);
        goto cleanup;
    }

    virDomainAuditNetDevice(def, net, tunpath, true);
    virMacAddrSet(&tapmac, &net->mac);
    tapmac.addr[0] = 0xFE;

    if (virNetDevSetMAC(net->ifname, &tapmac) < 0)
        goto cleanup;

    if (virNetDevSetOnline(net->ifname, true) < 0)
        goto cleanup;

    if (net->script &&
        virNetDevRunEthernetScript(net->ifname, net->script) < 0)
        goto cleanup;

    if (cfg->macFilter &&
        ebtablesAddForwardAllowIn(driver->ebtables,
                                  net->ifname,
                                  &net->mac) < 0)
        goto cleanup;

    if (net->filter &&
        virDomainConfNWFilterInstantiate(def->uuid, net) < 0) {
        goto cleanup;
    }

    ret = 0;

 cleanup:
    if (ret < 0) {
        size_t i;
        for (i = 0; i < tapfdSize && tapfd[i] >= 0; i++)
            VIR_FORCE_CLOSE(tapfd[i]);
        if (template_ifname)
            VIR_FREE(net->ifname);
    }
    virObjectUnref(cfg);

    return ret;
}
示例#28
0
static int
do_make_fs (const char *input, const char *output_str)
{
  const char *dev, *options;
  CLEANUP_UNLINK_FREE char *output = NULL;
  uint64_t estimate, size;
  struct guestfs_disk_create_argv optargs;
  CLEANUP_FREE char *ifmt = NULL;
  CLEANUP_FREE char *ifile = NULL;
  pid_t pid;
  int status, fd;

  /* Use of CLEANUP_UNLINK_FREE *output ensures the output file is
   * deleted unless we successfully reach the end of this function.
   */
  output = strdup (output_str);
  if (output == NULL) {
    perror ("strdup");
    return -1;
  }

  /* Input.  What is it?  Estimate how much space it will need. */
  if (estimate_input (input, &estimate, &ifmt) == -1)
    return -1;

  if (verbose) {
    fprintf (stderr, "input format = %s\n", ifmt);
    fprintf (stderr, "estimate = %" PRIu64 " bytes "
             "(%" PRIu64 " 1K blocks, %" PRIu64 " 4K blocks)\n",
             estimate, estimate / 1024, estimate / 4096);
  }

  estimate += 256 * 1024;       /* For superblocks &c. */

  if (STRPREFIX (type, "ext") && type[3] >= '3') {
    /* For ext3+, add some more for the journal. */
    estimate += 1024 * 1024;
  }

  else if (STREQ (type, "ntfs")) {
    estimate += 4 * 1024 * 1024; /* NTFS journal. */
  }

  else if (STREQ (type, "btrfs")) {
    /* For BTRFS, the minimum metadata allocation is 256MB, with data
     * additional to that.  Note that we disable data and metadata
     * duplication below.
     */
    estimate += 256 * 1024 * 1024;
  }

  /* Add 10%, see above. */
  estimate *= 1.10;

  /* Calculate the output size. */
  if (size_str == NULL)
    size = estimate;
  else
    if (parse_size (size_str, estimate, &size) == -1)
      return -1;

  /* Create the output disk. */
  optargs.bitmask = 0;
  if (STREQ (format, "qcow2")) {
    optargs.bitmask |= GUESTFS_DISK_CREATE_PREALLOCATION_BITMASK;
    optargs.preallocation = "metadata";
  }
  if (guestfs_disk_create_argv (g, output, format, size, &optargs) == -1)
    return -1;

  if (guestfs_add_drive_opts (g, output,
                              GUESTFS_ADD_DRIVE_OPTS_FORMAT, format,
                              -1) == -1)
    return -1;

  if (guestfs_launch (g) == -1)
    return -1;

  if (check_ntfs_available () == -1)
    return -1;

  /* Partition the disk. */
  dev = "/dev/sda";
  if (partition) {
    int mbr_id = 0;

    if (STREQ (partition, ""))
      partition = "mbr";

    if (guestfs_part_disk (g, dev, partition) == -1)
      return -1;

    dev = "/dev/sda1";

    /* Set the partition type byte if it's MBR and the filesystem type
     * is one that we know about.
     */
    if (STREQ (partition, "mbr") || STREQ (partition, "msdos")) {
      if (STREQ (type, "msdos"))
        /* According to Wikipedia.  However I have not actually tried this. */
        mbr_id = 0x1;
      else if (STREQ (type, "vfat") || STREQ (type, "fat"))
        mbr_id = 0xb;
      else if (STREQ (type, "ntfs"))
        mbr_id = 0x7;
      else if (STRPREFIX (type, "ext"))
        mbr_id = 0x83;
      else if (STREQ (type, "minix"))
        mbr_id = 0x81;
    }
    if (mbr_id != 0) {
      if (guestfs_part_set_mbr_id (g, "/dev/sda", 1, mbr_id) == -1)
        return -1;
    }
  }

  if (verbose)
    fprintf (stderr, "creating %s filesystem on %s ...\n", type, dev);

  /* Create the filesystem. */
  if (STRNEQ (type, "btrfs")) {
    int r;
    struct guestfs_mkfs_opts_argv optargs = { .bitmask = 0 };

    if (label) {
      optargs.label = label;
      optargs.bitmask |= GUESTFS_MKFS_OPTS_LABEL_BITMASK;
    }

    guestfs_push_error_handler (g, NULL, NULL);
    r = guestfs_mkfs_opts_argv (g, type, dev, &optargs);
    guestfs_pop_error_handler (g);

    if (r == -1) {
      /* Provide more guidance in the error message (RHBZ#823883). */
      fprintf (stderr, "%s: 'mkfs' (create filesystem) operation failed: %s\n",
               guestfs_int_program_name, guestfs_last_error (g));
      if (STREQ (type, "fat"))
        fprintf (stderr, "Instead of 'fat', try 'vfat' (long filenames) or 'msdos' (short filenames).\n");
      else
        fprintf (stderr, "Is '%s' a correct filesystem type?\n", type);

      return -1;
    }
  }
  else {
示例#29
0
static guestfs_int_isoinfo *
parse_isoinfo (char **lines)
{
  guestfs_int_isoinfo *ret;
  size_t i;

  ret = calloc (1, sizeof *ret);
  if (ret == NULL) {
    reply_with_perror ("calloc");
    return NULL;
  }

  /* Default each int field in the struct to -1. */
  ret->iso_volume_space_size = (uint32_t) -1;
  ret->iso_volume_set_size = (uint32_t) -1;
  ret->iso_volume_sequence_number = (uint32_t) -1;
  ret->iso_logical_block_size = (uint32_t) -1;
  ret->iso_volume_creation_t = -1;
  ret->iso_volume_modification_t = -1;
  ret->iso_volume_expiration_t = -1;
  ret->iso_volume_effective_t = -1;

  for (i = 0; lines[i] != NULL; ++i) {
    if (STRPREFIX (lines[i], "System id: ")) {
      ret->iso_system_id = strdup (&lines[i][11]);
      if (ret->iso_system_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Volume id: ")) {
      ret->iso_volume_id = strdup (&lines[i][11]);
      if (ret->iso_volume_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Volume set id: ")) {
      ret->iso_volume_set_id = strdup (&lines[i][15]);
      if (ret->iso_volume_set_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Publisher id: ")) {
      ret->iso_publisher_id = strdup (&lines[i][14]);
      if (ret->iso_publisher_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Data preparer id: ")) {
      ret->iso_data_preparer_id = strdup (&lines[i][18]);
      if (ret->iso_data_preparer_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Application id: ")) {
      ret->iso_application_id = strdup (&lines[i][16]);
      if (ret->iso_application_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Copyright File id: ")) {
      ret->iso_copyright_file_id = strdup (&lines[i][19]);
      if (ret->iso_copyright_file_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Abstract File id: ")) {
      ret->iso_abstract_file_id = strdup (&lines[i][18]);
      if (ret->iso_abstract_file_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Bibliographic File id: ")) {
      ret->iso_bibliographic_file_id = strdup (&lines[i][23]);
      if (ret->iso_bibliographic_file_id == NULL) goto error;
    }
    else if (STRPREFIX (lines[i], "Volume size is: ")) {
      if (parse_uint32 (&ret->iso_volume_space_size, &lines[i][16]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Volume set size is: ")) {
      if (parse_uint32 (&ret->iso_volume_set_size, &lines[i][20]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Volume set sequence number is: ")) {
      if (parse_uint32 (&ret->iso_volume_sequence_number, &lines[i][31]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Logical block size is: ")) {
      if (parse_uint32 (&ret->iso_logical_block_size, &lines[i][23]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Creation Date:     ")) {
      if (parse_time_t (&ret->iso_volume_creation_t, &lines[i][19]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Modification Date: ")) {
      if (parse_time_t (&ret->iso_volume_modification_t, &lines[i][19]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Expiration Date:   ")) {
      if (parse_time_t (&ret->iso_volume_expiration_t, &lines[i][19]) == -1)
        goto error;
    }
    else if (STRPREFIX (lines[i], "Effective Date:    ")) {
      if (parse_time_t (&ret->iso_volume_effective_t, &lines[i][19]) == -1)
        goto error;
    }
  }

  /* Any string fields which were not set above will be NULL.  However
   * we cannot return NULL fields in structs, so we convert these to
   * empty strings here.
   */
  if (ret->iso_system_id == NULL) {
    ret->iso_system_id = strdup ("");
    if (ret->iso_system_id == NULL) goto error;
  }
  if (ret->iso_volume_id == NULL) {
    ret->iso_volume_id = strdup ("");
    if (ret->iso_volume_id == NULL) goto error;
  }
  if (ret->iso_volume_set_id == NULL) {
    ret->iso_volume_set_id = strdup ("");
    if (ret->iso_volume_set_id == NULL) goto error;
  }
  if (ret->iso_publisher_id == NULL) {
    ret->iso_publisher_id = strdup ("");
    if (ret->iso_publisher_id == NULL) goto error;
  }
  if (ret->iso_data_preparer_id == NULL) {
    ret->iso_data_preparer_id = strdup ("");
    if (ret->iso_data_preparer_id == NULL) goto error;
  }
  if (ret->iso_application_id == NULL) {
    ret->iso_application_id = strdup ("");
    if (ret->iso_application_id == NULL) goto error;
  }
  if (ret->iso_copyright_file_id == NULL) {
    ret->iso_copyright_file_id = strdup ("");
    if (ret->iso_copyright_file_id == NULL) goto error;
  }
  if (ret->iso_abstract_file_id == NULL) {
    ret->iso_abstract_file_id = strdup ("");
    if (ret->iso_abstract_file_id == NULL) goto error;
  }
  if (ret->iso_bibliographic_file_id == NULL) {
    ret->iso_bibliographic_file_id = strdup ("");
    if (ret->iso_bibliographic_file_id == NULL) goto error;
  }

  return ret;

 error:
  free (ret->iso_system_id);
  free (ret->iso_volume_id);
  free (ret->iso_volume_set_id);
  free (ret->iso_publisher_id);
  free (ret->iso_data_preparer_id);
  free (ret->iso_application_id);
  free (ret->iso_copyright_file_id);
  free (ret->iso_abstract_file_id);
  free (ret->iso_bibliographic_file_id);
  free (ret);
  return NULL;
}
示例#30
0
文件: xen_xl.c 项目: Lantame/libvirt
/*
 * For details on xl disk config syntax, see
 * docs/misc/xl-disk-configuration.txt in the Xen sources.  The important
 * section of text is:
 *
 *   More formally, the string is a series of comma-separated keyword/value
 *   pairs, flags and positional parameters.  Parameters which are not bare
 *   keywords and which do not contain "=" symbols are assigned to the
 *   so-far-unspecified positional parameters, in the order below.  The
 *   positional parameters may also be specified explicitly by name.
 *
 *   Each parameter may be specified at most once, either as a positional
 *   parameter or a named parameter.  Default values apply if the parameter
 *   is not specified, or if it is specified with an empty value (whether
 *   positionally or explicitly).
 *
 *   Whitespace may appear before each parameter and will be ignored.
 *
 * The order of the positional parameters mentioned in the quoted text is:
 *
 *   target,format,vdev,access
 *
 * The following options must be specified by key=value:
 *
 *   devtype=<devtype>
 *   backendtype=<backend-type>
 *
 * The following options are currently not supported:
 *
 *   backend=<domain-name>
 *   script=<script>
 *   direct-io-safe
 *
 */
static int
xenParseXLDisk(virConfPtr conf, virDomainDefPtr def)
{
    int ret = -1;
    virConfValuePtr list = virConfGetValue(conf, "disk");
    XLU_Config *xluconf;
    libxl_device_disk *libxldisk;
    virDomainDiskDefPtr disk = NULL;

    if (VIR_ALLOC(libxldisk) < 0)
        return -1;

    if (!(xluconf = xlu_cfg_init(stderr, "command line")))
        goto cleanup;

    if (list && list->type == VIR_CONF_LIST) {
        list = list->list;
        while (list) {
            const char *disk_spec = list->str;

            if (list->type != VIR_CONF_STRING || list->str == NULL)
                goto skipdisk;

            libxl_device_disk_init(libxldisk);

            if (xlu_disk_parse(xluconf, 1, &disk_spec, libxldisk))
                goto fail;

            if (!(disk = virDomainDiskDefNew(NULL)))
                goto fail;

            if (xenParseXLDiskSrc(disk, libxldisk->pdev_path) < 0)
                goto fail;

            if (VIR_STRDUP(disk->dst, libxldisk->vdev) < 0)
                goto fail;

            disk->src->readonly = !libxldisk->readwrite;
            disk->removable = libxldisk->removable;

            if (libxldisk->is_cdrom) {
                if (virDomainDiskSetDriver(disk, "qemu") < 0)
                    goto fail;

                virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
                disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
                if (!disk->src->path || STREQ(disk->src->path, ""))
                    disk->src->format = VIR_STORAGE_FILE_NONE;
                else
                    disk->src->format = VIR_STORAGE_FILE_RAW;
            } else {
                switch (libxldisk->format) {
                case LIBXL_DISK_FORMAT_QCOW:
                    disk->src->format = VIR_STORAGE_FILE_QCOW;
                    break;

                case LIBXL_DISK_FORMAT_QCOW2:
                    disk->src->format = VIR_STORAGE_FILE_QCOW2;
                    break;

                case LIBXL_DISK_FORMAT_VHD:
                    disk->src->format = VIR_STORAGE_FILE_VHD;
                    break;

                case LIBXL_DISK_FORMAT_RAW:
                case LIBXL_DISK_FORMAT_UNKNOWN:
                    disk->src->format = VIR_STORAGE_FILE_RAW;
                    break;

                case LIBXL_DISK_FORMAT_EMPTY:
                    break;
                }

                switch (libxldisk->backend) {
                case LIBXL_DISK_BACKEND_QDISK:
                case LIBXL_DISK_BACKEND_UNKNOWN:
                    if (virDomainDiskSetDriver(disk, "qemu") < 0)
                        goto fail;
                    if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_NONE)
                        virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
                    break;

                case LIBXL_DISK_BACKEND_TAP:
                    if (virDomainDiskSetDriver(disk, "tap") < 0)
                        goto fail;
                    virDomainDiskSetType(disk, VIR_STORAGE_TYPE_FILE);
                    break;

                case LIBXL_DISK_BACKEND_PHY:
                    if (virDomainDiskSetDriver(disk, "phy") < 0)
                        goto fail;
                    virDomainDiskSetType(disk, VIR_STORAGE_TYPE_BLOCK);
                    break;
                }
            }

            if (STRPREFIX(libxldisk->vdev, "xvd") ||
                def->os.type != VIR_DOMAIN_OSTYPE_HVM)
                disk->bus = VIR_DOMAIN_DISK_BUS_XEN;
            else if (STRPREFIX(libxldisk->vdev, "sd"))
                disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
            else
                disk->bus = VIR_DOMAIN_DISK_BUS_IDE;

            if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0)
                goto fail;

            libxl_device_disk_dispose(libxldisk);

        skipdisk:
            list = list->next;
        }
    }
    ret = 0;

 cleanup:
    virDomainDiskDefFree(disk);
    xlu_cfg_destroy(xluconf);
    VIR_FREE(libxldisk);
    return ret;

 fail:
    libxl_device_disk_dispose(libxldisk);
    goto cleanup;
}