/**
* qemuBlockJobEmitEvents:
*
* Emits the VIR_DOMAIN_EVENT_ID_BLOCK_JOB and VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2
* for a block job. The former event is emitted only for local disks.
*/
static void
qemuBlockJobEmitEvents(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainDiskDefPtr disk,
virDomainBlockJobType type,
virConnectDomainEventBlockJobStatus status)
{
virObjectEventPtr event = NULL;
virObjectEventPtr event2 = NULL;
/* don't emit events for internal jobs and states */
if (type >= VIR_DOMAIN_BLOCK_JOB_TYPE_LAST ||
status >= VIR_DOMAIN_BLOCK_JOB_LAST)
return;
if (virStorageSourceIsLocalStorage(disk->src) &&
!virStorageSourceIsEmpty(disk->src)) {
event = virDomainEventBlockJobNewFromObj(vm, virDomainDiskGetSource(disk),
type, status);
virObjectEventStateQueue(driver->domainEventState, event);
}
event2 = virDomainEventBlockJob2NewFromObj(vm, disk->dst, type, status);
virObjectEventStateQueue(driver->domainEventState, event2);
}
static int
bhyveBuildDiskArgStr(const virDomainDef *def, virCommandPtr cmd)
{
virDomainDiskDefPtr disk;
const char *bus_type;
if (def->ndisks != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("domain should have one and only one disk defined"));
return -1;
}
disk = def->disks[0];
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_SATA:
bus_type = "ahci-hd";
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
bus_type = "virtio-blk";
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unsupported disk bus type"));
return -1;
}
if (disk->device != VIR_DOMAIN_DISK_DEVICE_DISK) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unsupported disk device"));
return -1;
}
if (virDomainDiskGetType(disk) != VIR_STORAGE_TYPE_FILE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unsupported disk type"));
return -1;
}
virCommandAddArg(cmd, "-s");
virCommandAddArgFormat(cmd, "2:0,%s,%s", bus_type,
virDomainDiskGetSource(disk));
return 0;
}
virCommandPtr
virBhyveProcessBuildLoadCmd(bhyveConnPtr driver ATTRIBUTE_UNUSED,
virDomainObjPtr vm)
{
virCommandPtr cmd;
virDomainDiskDefPtr disk;
if (vm->def->ndisks != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("domain should have one and only one disk defined"));
return NULL;
}
disk = vm->def->disks[0];
if (disk->device != VIR_DOMAIN_DISK_DEVICE_DISK) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unsupported disk device"));
return NULL;
}
if (virDomainDiskGetType(disk) != VIR_STORAGE_TYPE_FILE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unsupported disk type"));
return NULL;
}
cmd = virCommandNew(BHYVELOAD);
/* Memory */
virCommandAddArg(cmd, "-m");
virCommandAddArgFormat(cmd, "%llu",
VIR_DIV_UP(vm->def->mem.max_balloon, 1024));
/* Image path */
virCommandAddArg(cmd, "-d");
virCommandAddArg(cmd, virDomainDiskGetSource(disk));
/* VM name */
virCommandAddArg(cmd, vm->def->name);
return cmd;
}
int
libxlMakeDisk(virDomainDiskDefPtr l_disk, libxl_device_disk *x_disk)
{
const char *driver;
int format;
libxl_device_disk_init(x_disk);
if (VIR_STRDUP(x_disk->pdev_path, virDomainDiskGetSource(l_disk)) < 0)
return -1;
if (VIR_STRDUP(x_disk->vdev, l_disk->dst) < 0)
return -1;
driver = virDomainDiskGetDriver(l_disk);
format = virDomainDiskGetFormat(l_disk);
if (driver) {
if (STREQ(driver, "tap") || STREQ(driver, "tap2")) {
switch (format) {
case VIR_STORAGE_FILE_QCOW:
x_disk->format = LIBXL_DISK_FORMAT_QCOW;
x_disk->backend = LIBXL_DISK_BACKEND_QDISK;
break;
case VIR_STORAGE_FILE_QCOW2:
x_disk->format = LIBXL_DISK_FORMAT_QCOW2;
x_disk->backend = LIBXL_DISK_BACKEND_QDISK;
break;
case VIR_STORAGE_FILE_VHD:
x_disk->format = LIBXL_DISK_FORMAT_VHD;
x_disk->backend = LIBXL_DISK_BACKEND_TAP;
break;
case VIR_STORAGE_FILE_NONE:
/* No subtype specified, default to raw/tap */
case VIR_STORAGE_FILE_RAW:
x_disk->format = LIBXL_DISK_FORMAT_RAW;
x_disk->backend = LIBXL_DISK_BACKEND_TAP;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support disk format %s "
"with disk driver %s"),
virStorageFileFormatTypeToString(format),
driver);
return -1;
}
} else if (STREQ(driver, "qemu")) {
x_disk->backend = LIBXL_DISK_BACKEND_QDISK;
switch (format) {
case VIR_STORAGE_FILE_QCOW:
x_disk->format = LIBXL_DISK_FORMAT_QCOW;
break;
case VIR_STORAGE_FILE_QCOW2:
x_disk->format = LIBXL_DISK_FORMAT_QCOW2;
break;
case VIR_STORAGE_FILE_VHD:
x_disk->format = LIBXL_DISK_FORMAT_VHD;
break;
case VIR_STORAGE_FILE_NONE:
/* No subtype specified, default to raw */
case VIR_STORAGE_FILE_RAW:
x_disk->format = LIBXL_DISK_FORMAT_RAW;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support disk format %s "
"with disk driver %s"),
virStorageFileFormatTypeToString(format),
driver);
return -1;
}
} else if (STREQ(driver, "file")) {
if (format != VIR_STORAGE_FILE_NONE &&
format != VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support disk format %s "
"with disk driver %s"),
virStorageFileFormatTypeToString(format),
driver);
return -1;
}
x_disk->format = LIBXL_DISK_FORMAT_RAW;
x_disk->backend = LIBXL_DISK_BACKEND_TAP;
} else if (STREQ(driver, "phy")) {
if (format != VIR_STORAGE_FILE_NONE &&
format != VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support disk format %s "
"with disk driver %s"),
virStorageFileFormatTypeToString(format),
driver);
return -1;
}
x_disk->format = LIBXL_DISK_FORMAT_RAW;
x_disk->backend = LIBXL_DISK_BACKEND_PHY;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support disk driver %s"),
driver);
return -1;
}
} else {
/*
* If driverName is not specified, default to raw as per
* xl-disk-configuration.txt in the xen documentation and let
* libxl pick a suitable backend.
*/
x_disk->format = LIBXL_DISK_FORMAT_RAW;
x_disk->backend = LIBXL_DISK_BACKEND_UNKNOWN;
}
/* XXX is this right? */
x_disk->removable = 1;
x_disk->readwrite = !l_disk->readonly;
x_disk->is_cdrom = l_disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0;
/* An empty CDROM must have the empty format, otherwise libxl fails. */
if (x_disk->is_cdrom && !x_disk->pdev_path)
x_disk->format = LIBXL_DISK_FORMAT_EMPTY;
if (l_disk->transient) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight does not support transient disks"));
return -1;
}
return 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;
}
int
vmwareVmxPath(virDomainDefPtr vmdef, char **vmxPath)
{
virDomainDiskDefPtr disk = NULL;
char *directoryName = NULL;
char *fileName = NULL;
int ret = -1;
size_t i;
const char *src;
/*
* Build VMX URL. Use the source of the first file-based harddisk
* to deduce the path for the VMX file. Don't just use the
* first disk, because it may be CDROM disk and ISO images are normally not
* located in the virtual machine's directory. This approach
* isn't perfect but should work in the majority of cases.
*/
if (vmdef->ndisks < 1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Domain XML doesn't contain any disks, "
"cannot deduce datastore and path for VMX file"));
goto cleanup;
}
for (i = 0; i < vmdef->ndisks; ++i) {
if (vmdef->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK &&
virDomainDiskGetType(vmdef->disks[i]) == VIR_STORAGE_TYPE_FILE) {
disk = vmdef->disks[i];
break;
}
}
if (disk == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Domain XML doesn't contain any file-based harddisks, "
"cannot deduce datastore and path for VMX file"));
goto cleanup;
}
src = virDomainDiskGetSource(disk);
if (!src) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("First file-based harddisk has no source, cannot "
"deduce datastore and path for VMX file"));
goto cleanup;
}
if (vmwareParsePath(src, &directoryName, &fileName) < 0)
goto cleanup;
if (!virFileHasSuffix(fileName, ".vmdk")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Expecting source '%s' of first file-based harddisk "
"to be a VMDK image"), src);
goto cleanup;
}
if (vmwareConstructVmxPath(directoryName, vmdef->name, vmxPath) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(directoryName);
VIR_FREE(fileName);
return ret;
}
static int
xenFormatXLDisk(virConfValuePtr list, virDomainDiskDefPtr disk)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virConfValuePtr val, tmp;
const char *src = virDomainDiskGetSource(disk);
int format = virDomainDiskGetFormat(disk);
const char *driver = virDomainDiskGetDriver(disk);
/* target */
virBufferAsprintf(&buf, "%s,", src);
/* format */
switch (format) {
case VIR_STORAGE_FILE_RAW:
virBufferAddLit(&buf, "raw,");
break;
case VIR_STORAGE_FILE_VHD:
virBufferAddLit(&buf, "xvhd,");
break;
case VIR_STORAGE_FILE_QCOW:
virBufferAddLit(&buf, "qcow,");
break;
case VIR_STORAGE_FILE_QCOW2:
virBufferAddLit(&buf, "qcow2,");
break;
/* set default */
default:
virBufferAddLit(&buf, "raw,");
}
/* device */
virBufferAdd(&buf, disk->dst, -1);
virBufferAddLit(&buf, ",");
if (disk->src->readonly)
virBufferAddLit(&buf, "r,");
else if (disk->src->shared)
virBufferAddLit(&buf, "!,");
else
virBufferAddLit(&buf, "w,");
if (disk->transient) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("transient disks not supported yet"));
goto cleanup;
}
if (STREQ_NULLABLE(driver, "qemu"))
virBufferAddLit(&buf, "backendtype=qdisk");
else if (STREQ_NULLABLE(driver, "tap"))
virBufferAddLit(&buf, "backendtype=tap");
else if (STREQ_NULLABLE(driver, "phy"))
virBufferAddLit(&buf, "backendtype=phy");
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&buf, ",devtype=cdrom");
if (virBufferCheckError(&buf) < 0)
goto cleanup;
if (VIR_ALLOC(val) < 0)
goto cleanup;
val->type = VIR_CONF_STRING;
val->str = virBufferContentAndReset(&buf);
tmp = list->list;
while (tmp && tmp->next)
tmp = tmp->next;
if (tmp)
tmp->next = val;
else
list->list = val;
return 0;
cleanup:
virBufferFreeAndReset(&buf);
return -1;
}
/**
* qemuBlockJobEventProcess:
* @driver: qemu driver
* @vm: domain
* @disk: domain disk
* @type: block job type
* @status: block job status
*
* Update disk's mirror state in response to a block job event
* from QEMU. For mirror state's that must survive libvirt
* restart, also update the domain's status XML.
*/
void
qemuBlockJobEventProcess(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainDiskDefPtr disk,
qemuDomainAsyncJob asyncJob,
int type,
int status)
{
virObjectEventPtr event = NULL;
virObjectEventPtr event2 = NULL;
const char *path;
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
virDomainDiskDefPtr persistDisk = NULL;
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
VIR_DEBUG("disk=%s, mirrorState=%s, type=%d, status=%d",
disk->dst,
NULLSTR(virDomainDiskMirrorStateTypeToString(disk->mirrorState)),
type,
status);
/* Have to generate two variants of the event for old vs. new
* client callbacks */
if (type == VIR_DOMAIN_BLOCK_JOB_TYPE_COMMIT &&
disk->mirrorJob == VIR_DOMAIN_BLOCK_JOB_TYPE_ACTIVE_COMMIT)
type = disk->mirrorJob;
path = virDomainDiskGetSource(disk);
event = virDomainEventBlockJobNewFromObj(vm, path, type, status);
event2 = virDomainEventBlockJob2NewFromObj(vm, disk->dst, type, status);
/* If we completed a block pull or commit, then update the XML
* to match. */
switch ((virConnectDomainEventBlockJobStatus) status) {
case VIR_DOMAIN_BLOCK_JOB_COMPLETED:
if (disk->mirrorState == VIR_DOMAIN_DISK_MIRROR_STATE_PIVOT) {
if (vm->newDef) {
virStorageSourcePtr copy = NULL;
if ((persistDisk = virDomainDiskByName(vm->newDef,
disk->dst, false))) {
copy = virStorageSourceCopy(disk->mirror, false);
if (!copy ||
virStorageSourceInitChainElement(copy,
persistDisk->src,
true) < 0) {
VIR_WARN("Unable to update persistent definition "
"on vm %s after block job",
vm->def->name);
virStorageSourceFree(copy);
copy = NULL;
persistDisk = NULL;
}
}
if (copy) {
virStorageSourceFree(persistDisk->src);
persistDisk->src = copy;
}
}
/* XXX We want to revoke security labels as well as audit that
* revocation, before dropping the original source. But it gets
* tricky if both source and mirror share common backing files (we
* want to only revoke the non-shared portion of the chain); so for
* now, we leak the access to the original. */
virDomainLockImageDetach(driver->lockManager, vm, disk->src);
virStorageSourceFree(disk->src);
disk->src = disk->mirror;
} else {
if (disk->mirror) {
virDomainLockImageDetach(driver->lockManager, vm, disk->mirror);
virStorageSourceFree(disk->mirror);
}
}
/* Recompute the cached backing chain to match our
* updates. Better would be storing the chain ourselves
* rather than reprobing, but we haven't quite completed
* that conversion to use our XML tracking. */
disk->mirror = NULL;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_UNKNOWN;
disk->src->id = 0;
ignore_value(qemuDomainDetermineDiskChain(driver, vm, disk,
true, true));
ignore_value(qemuBlockNodeNamesDetect(driver, vm, asyncJob));
diskPriv->blockjob = false;
break;
case VIR_DOMAIN_BLOCK_JOB_READY:
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_READY;
break;
case VIR_DOMAIN_BLOCK_JOB_FAILED:
case VIR_DOMAIN_BLOCK_JOB_CANCELED:
if (disk->mirror) {
virDomainLockImageDetach(driver->lockManager, vm, disk->mirror);
virStorageSourceFree(disk->mirror);
disk->mirror = NULL;
}
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_UNKNOWN;
diskPriv->blockjob = false;
break;
case VIR_DOMAIN_BLOCK_JOB_LAST:
break;
}
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
VIR_WARN("Unable to save status on vm %s after block job", vm->def->name);
if (status == VIR_DOMAIN_BLOCK_JOB_COMPLETED && vm->newDef) {
if (virDomainSaveConfig(cfg->configDir, driver->caps, vm->newDef) < 0)
VIR_WARN("Unable to update persistent definition on vm %s "
"after block job", vm->def->name);
}
qemuDomainEventQueue(driver, event);
qemuDomainEventQueue(driver, event2);
virObjectUnref(cfg);
}
/* Align def->disks to def->domain. Sort the list of def->disks,
* filling in any missing disks or snapshot state defaults given by
* the domain, with a fallback to a passed in default. Convert paths
* to disk targets for uniformity. Issue an error and return -1 if
* any def->disks[n]->name appears more than once or does not map to
* dom->disks. If require_match, also ensure that there is no
* conflicting requests for both internal and external snapshots. */
int
virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
int default_snapshot,
bool require_match)
{
int ret = -1;
virBitmapPtr map = NULL;
size_t i;
int ndisks;
if (!def->dom) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing domain in snapshot"));
goto cleanup;
}
if (def->ndisks > def->dom->ndisks) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("too many disk snapshot requests for domain"));
goto cleanup;
}
/* Unlikely to have a guest without disks but technically possible. */
if (!def->dom->ndisks) {
ret = 0;
goto cleanup;
}
if (!(map = virBitmapNew(def->dom->ndisks)))
goto cleanup;
/* Double check requested disks. */
for (i = 0; i < def->ndisks; i++) {
virDomainSnapshotDiskDefPtr disk = &def->disks[i];
int idx = virDomainDiskIndexByName(def->dom, disk->name, false);
int disk_snapshot;
if (idx < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("no disk named '%s'"), disk->name);
goto cleanup;
}
if (virBitmapIsBitSet(map, idx)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk '%s' specified twice"),
disk->name);
goto cleanup;
}
ignore_value(virBitmapSetBit(map, idx));
disk->index = idx;
disk_snapshot = def->dom->disks[idx]->snapshot;
if (!disk->snapshot) {
if (disk_snapshot &&
(!require_match ||
disk_snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE))
disk->snapshot = disk_snapshot;
else
disk->snapshot = default_snapshot;
} else if (require_match &&
disk->snapshot != default_snapshot &&
!(disk->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE &&
disk_snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE)) {
const char *tmp;
tmp = virDomainSnapshotLocationTypeToString(default_snapshot);
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk '%s' must use snapshot mode '%s'"),
disk->name, tmp);
goto cleanup;
}
if (disk->src->path &&
disk->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("file '%s' for disk '%s' requires "
"use of external snapshot mode"),
disk->src->path, disk->name);
goto cleanup;
}
if (STRNEQ(disk->name, def->dom->disks[idx]->dst)) {
VIR_FREE(disk->name);
if (VIR_STRDUP(disk->name, def->dom->disks[idx]->dst) < 0)
goto cleanup;
}
}
/* Provide defaults for all remaining disks. */
ndisks = def->ndisks;
if (VIR_EXPAND_N(def->disks, def->ndisks,
def->dom->ndisks - def->ndisks) < 0)
goto cleanup;
for (i = 0; i < def->dom->ndisks; i++) {
virDomainSnapshotDiskDefPtr disk;
if (virBitmapIsBitSet(map, i))
continue;
disk = &def->disks[ndisks++];
if (VIR_ALLOC(disk->src) < 0)
goto cleanup;
if (VIR_STRDUP(disk->name, def->dom->disks[i]->dst) < 0)
goto cleanup;
disk->index = i;
/* Don't snapshot empty drives */
if (virStorageSourceIsEmpty(def->dom->disks[i]->src))
disk->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_NONE;
else
disk->snapshot = def->dom->disks[i]->snapshot;
disk->src->type = VIR_STORAGE_TYPE_FILE;
if (!disk->snapshot)
disk->snapshot = default_snapshot;
}
qsort(&def->disks[0], def->ndisks, sizeof(def->disks[0]), disksorter);
/* Generate any default external file names, but only if the
* backing file is a regular file. */
for (i = 0; i < def->ndisks; i++) {
virDomainSnapshotDiskDefPtr disk = &def->disks[i];
if (disk->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL &&
!disk->src->path) {
const char *original = virDomainDiskGetSource(def->dom->disks[i]);
const char *tmp;
struct stat sb;
if (disk->src->type != VIR_STORAGE_TYPE_FILE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot generate external snapshot name "
"for disk '%s' on a '%s' device"),
disk->name,
virStorageTypeToString(disk->src->type));
goto cleanup;
}
if (!original) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot generate external snapshot name "
"for disk '%s' without source"),
disk->name);
goto cleanup;
}
if (stat(original, &sb) < 0 || !S_ISREG(sb.st_mode)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("source for disk '%s' is not a regular "
"file; refusing to generate external "
"snapshot name"),
disk->name);
goto cleanup;
}
tmp = strrchr(original, '.');
if (!tmp || strchr(tmp, '/')) {
if (virAsprintf(&disk->src->path, "%s.%s", original,
def->name) < 0)
goto cleanup;
} else {
if ((tmp - original) > INT_MAX) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("integer overflow"));
goto cleanup;
}
if (virAsprintf(&disk->src->path, "%.*s.%s",
(int) (tmp - original), original,
def->name) < 0)
goto cleanup;
}
}
}
ret = 0;
cleanup:
virBitmapFree(map);
return ret;
}
/*
* Parse the /usr/sbin/bhyveload command line.
*/
static int
bhyveParseBhyveLoadCommandLine(virDomainDefPtr def,
int argc, char **argv)
{
int c;
/* bhyveload called with default arguments when only -m and -d are given.
* Store this in a bit field and check if only those two options are given
* later */
unsigned arguments = 0;
size_t memory = 0;
struct _getopt_data *parser;
size_t i = 0;
int ret = -1;
const char optstr[] = "CSc:d:e:h:l:m:";
if (!argv)
goto error;
if (VIR_ALLOC(parser) < 0)
goto error;
while ((c = _getopt_internal_r(argc, argv, optstr,
NULL, NULL, 0, parser, 0)) != -1) {
switch (c) {
case 'd':
arguments |= 1;
/* Iterate over the disks of the domain trying to match up the
* source */
for (i = 0; i < def->ndisks; i++) {
if (STREQ(virDomainDiskGetSource(def->disks[i]),
parser->optarg)) {
def->disks[i]->info.bootIndex = i;
break;
}
}
break;
case 'm':
arguments |= 2;
if (bhyveParseMemsize(parser->optarg, &memory)) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to parse memory"));
goto error;
}
if (def->mem.cur_balloon != 0 && def->mem.cur_balloon != memory) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to parse memory: size mismatch"));
goto error;
}
def->mem.cur_balloon = memory;
virDomainDefSetMemoryTotal(def, memory);
break;
default:
arguments |= 4;
}
}
if (arguments != 3) {
/* Set os.bootloader since virDomainDefFormatInternal will only format
* the bootloader arguments if os->bootloader is set. */
if (VIR_STRDUP(def->os.bootloader, argv[0]) < 0)
goto error;
def->os.bootloaderArgs = virStringJoin((const char**) &argv[1], " ");
}
if (argc != parser->optind) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to parse arguments for bhyveload command"));
goto error;
}
if (def->name == NULL) {
if (VIR_STRDUP(def->name, argv[argc]) < 0)
goto error;
} else if (STRNEQ(def->name, argv[argc])) {
/* the vm name of the loader and the bhyverun command differ, throw an
* error here */
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to parse arguments: VM name mismatch"));
goto error;
}
ret = 0;
error:
VIR_FREE(parser);
return ret;
}
static int
xenFormatXMDisk(virConfValuePtr list,
virDomainDiskDefPtr disk)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virConfValuePtr val, tmp;
const char *src = virDomainDiskGetSource(disk);
int format = virDomainDiskGetFormat(disk);
const char *driver = virDomainDiskGetDriver(disk);
if (src) {
if (format) {
const char *type;
if (format == VIR_STORAGE_FILE_RAW)
type = "aio";
else
type = virStorageFileFormatTypeToString(format);
virBufferAsprintf(&buf, "%s:", driver);
if (STREQ(driver, "tap"))
virBufferAsprintf(&buf, "%s:", type);
} else {
switch (virDomainDiskGetType(disk)) {
case VIR_STORAGE_TYPE_FILE:
virBufferAddLit(&buf, "file:");
break;
case VIR_STORAGE_TYPE_BLOCK:
virBufferAddLit(&buf, "phy:");
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type %s"),
virStorageTypeToString(virDomainDiskGetType(disk)));
goto cleanup;
}
}
virBufferAdd(&buf, src, -1);
}
virBufferAddLit(&buf, ",");
virBufferAdd(&buf, disk->dst, -1);
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&buf, ":cdrom");
if (disk->src->readonly)
virBufferAddLit(&buf, ",r");
else if (disk->src->shared)
virBufferAddLit(&buf, ",!");
else
virBufferAddLit(&buf, ",w");
if (disk->transient) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("transient disks not supported yet"));
return -1;
}
if (virBufferCheckError(&buf) < 0)
goto cleanup;
if (VIR_ALLOC(val) < 0)
goto cleanup;
val->type = VIR_CONF_STRING;
val->str = virBufferContentAndReset(&buf);
tmp = list->list;
while (tmp && tmp->next)
tmp = tmp->next;
if (tmp)
tmp->next = val;
else
list->list = val;
return 0;
cleanup:
virBufferFreeAndReset(&buf);
return -1;
}
static int
xenParseXMDisk(virConfPtr conf, virDomainDefPtr def)
{
virDomainDiskDefPtr disk = NULL;
int hvm = def->os.type == VIR_DOMAIN_OSTYPE_HVM;
virConfValuePtr list = virConfGetValue(conf, "disk");
if (list && list->type == VIR_CONF_LIST) {
list = list->list;
while (list) {
char *head;
char *offset;
char *tmp;
const char *src;
if ((list->type != VIR_CONF_STRING) || (list->str == NULL))
goto skipdisk;
head = list->str;
if (!(disk = virDomainDiskDefNew(NULL)))
return -1;
/*
* Disks have 3 components, SOURCE,DEST-DEVICE,MODE
* eg, phy:/dev/HostVG/XenGuest1,xvda,w
* The SOURCE is usually prefixed with a driver type,
* and optionally driver sub-type
* The DEST-DEVICE is optionally post-fixed with disk type
*/
/* Extract the source file path*/
if (!(offset = strchr(head, ',')))
goto skipdisk;
if (offset == head) {
/* No source file given, eg CDROM with no media */
ignore_value(virDomainDiskSetSource(disk, NULL));
} else {
if (VIR_STRNDUP(tmp, head, offset - head) < 0)
goto cleanup;
if (virDomainDiskSetSource(disk, tmp) < 0) {
VIR_FREE(tmp);
goto cleanup;
}
VIR_FREE(tmp);
}
head = offset + 1;
/* Remove legacy ioemu: junk */
if (STRPREFIX(head, "ioemu:"))
head = head + 6;
/* Extract the dest device name */
if (!(offset = strchr(head, ',')))
goto skipdisk;
if (VIR_ALLOC_N(disk->dst, (offset - head) + 1) < 0)
goto cleanup;
if (virStrncpy(disk->dst, head, offset - head,
(offset - head) + 1) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Dest file %s too big for destination"), head);
goto cleanup;
}
head = offset + 1;
/* Extract source driver type */
src = virDomainDiskGetSource(disk);
if (src) {
size_t len;
/* The main type phy:, file:, tap: ... */
if ((tmp = strchr(src, ':')) != NULL) {
len = tmp - src;
if (VIR_STRNDUP(tmp, src, len) < 0)
goto cleanup;
if (virDomainDiskSetDriver(disk, tmp) < 0) {
VIR_FREE(tmp);
goto cleanup;
}
VIR_FREE(tmp);
/* Strip the prefix we found off the source file name */
if (virDomainDiskSetSource(disk, src + len + 1) < 0)
goto cleanup;
src = virDomainDiskGetSource(disk);
}
/* And the sub-type for tap:XXX: type */
if (STREQ_NULLABLE(virDomainDiskGetDriver(disk), "tap")) {
char *driverType;
if (!(tmp = strchr(src, ':')))
goto skipdisk;
len = tmp - src;
if (VIR_STRNDUP(driverType, src, len) < 0)
goto cleanup;
if (STREQ(driverType, "aio"))
virDomainDiskSetFormat(disk, VIR_STORAGE_FILE_RAW);
else
virDomainDiskSetFormat(disk,
virStorageFileFormatTypeFromString(driverType));
VIR_FREE(driverType);
if (virDomainDiskGetFormat(disk) <= 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown driver type %s"),
src);
goto cleanup;
}
/* Strip the prefix we found off the source file name */
if (virDomainDiskSetSource(disk, src + len + 1) < 0)
goto cleanup;
src = virDomainDiskGetSource(disk);
}
}
/* No source, or driver name, so fix to phy: */
if (!virDomainDiskGetDriver(disk) &&
virDomainDiskSetDriver(disk, "phy") < 0)
goto cleanup;
/* phy: type indicates a block device */
virDomainDiskSetType(disk,
STREQ(virDomainDiskGetDriver(disk), "phy") ?
VIR_STORAGE_TYPE_BLOCK :
VIR_STORAGE_TYPE_FILE);
/* Check for a :cdrom/:disk postfix */
disk->device = VIR_DOMAIN_DISK_DEVICE_DISK;
if ((tmp = strchr(disk->dst, ':')) != NULL) {
if (STREQ(tmp, ":cdrom"))
disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
tmp[0] = '\0';
}
if (STRPREFIX(disk->dst, "xvd") || !hvm) {
disk->bus = VIR_DOMAIN_DISK_BUS_XEN;
} else if (STRPREFIX(disk->dst, "sd")) {
disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
} else {
disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
}
if (STREQ(head, "r") ||
STREQ(head, "ro"))
disk->src->readonly = true;
else if ((STREQ(head, "w!")) ||
(STREQ(head, "!")))
disk->src->shared = true;
/* Maintain list in sorted order according to target device name */
if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0)
goto cleanup;
skipdisk:
list = list->next;
virDomainDiskDefFree(disk);
disk = NULL;
}
}
return 0;
cleanup:
virDomainDiskDefFree(disk);
return -1;
}
