static int
testCompareXMLToXMLFiles(const char *inxml,
const char *outxml,
const char *uuid,
bool internal,
bool redefine)
{
char *inXmlData = NULL;
char *outXmlData = NULL;
char *actual = NULL;
int ret = -1;
virDomainSnapshotDefPtr def = NULL;
unsigned int flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS;
if (internal)
flags |= VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL;
if (redefine)
flags |= VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE;
if (virtTestLoadFile(inxml, &inXmlData) < 0)
goto cleanup;
if (virtTestLoadFile(outxml, &outXmlData) < 0)
goto cleanup;
if (!(def = virDomainSnapshotDefParseString(inXmlData, driver.caps,
driver.xmlopt,
QEMU_EXPECTED_VIRT_TYPES,
flags)))
goto cleanup;
if (!(actual = virDomainSnapshotDefFormat(uuid, def,
VIR_DOMAIN_XML_SECURE,
internal)))
goto cleanup;
if (!redefine) {
if (!(actual = testFilterXML(actual)))
goto cleanup;
if (!(outXmlData = testFilterXML(outXmlData)))
goto cleanup;
}
if (STRNEQ(outXmlData, actual)) {
virtTestDifference(stderr, outXmlData, actual);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(inXmlData);
VIR_FREE(outXmlData);
VIR_FREE(actual);
virDomainSnapshotDefFree(def);
return ret;
}
static void virDomainSnapshotObjFree(virDomainSnapshotObjPtr snapshot)
{
if (!snapshot)
return;
VIR_DEBUG("obj=%p", snapshot);
virDomainSnapshotDefFree(snapshot->def);
VIR_FREE(snapshot);
}
static int
testCompareXMLToXMLFiles(const char *inxml, const char *uuid, int internal)
{
char *inXmlData = NULL;
char *actual = NULL;
int ret = -1;
virDomainSnapshotDefPtr def = NULL;
unsigned int flags = (VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE |
VIR_DOMAIN_SNAPSHOT_PARSE_DISKS);
if (virtTestLoadFile(inxml, &inXmlData) < 0)
goto fail;
if (internal)
flags |= VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL;
if (!(def = virDomainSnapshotDefParseString(inXmlData, driver.caps,
driver.xmlopt,
QEMU_EXPECTED_VIRT_TYPES,
flags)))
goto fail;
if (!(actual = virDomainSnapshotDefFormat(uuid, def,
VIR_DOMAIN_XML_SECURE,
internal)))
goto fail;
if (STRNEQ(inXmlData, actual)) {
virtTestDifference(stderr, inXmlData, actual);
goto fail;
}
ret = 0;
fail:
VIR_FREE(inXmlData);
VIR_FREE(actual);
virDomainSnapshotDefFree(def);
return ret;
}
/* flags is bitwise-or of virDomainSnapshotParseFlags.
* If flags does not include VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE, then
* caps and expectedVirtTypes are ignored.
*/
virDomainSnapshotDefPtr
virDomainSnapshotDefParseString(const char *xmlStr,
virCapsPtr caps,
unsigned int expectedVirtTypes,
unsigned int flags)
{
xmlXPathContextPtr ctxt = NULL;
xmlDocPtr xml = NULL;
virDomainSnapshotDefPtr def = NULL;
virDomainSnapshotDefPtr ret = NULL;
xmlNodePtr *nodes = NULL;
int i;
char *creation = NULL, *state = NULL;
struct timeval tv;
int active;
char *tmp;
int keepBlanksDefault = xmlKeepBlanksDefault(0);
char *memorySnapshot = NULL;
char *memoryFile = NULL;
bool offline = !!(flags & VIR_DOMAIN_SNAPSHOT_PARSE_OFFLINE);
xml = virXMLParseCtxt(NULL, xmlStr, _("(domain_snapshot)"), &ctxt);
if (!xml) {
xmlKeepBlanksDefault(keepBlanksDefault);
return NULL;
}
xmlKeepBlanksDefault(keepBlanksDefault);
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
goto cleanup;
}
if (!xmlStrEqual(ctxt->node->name, BAD_CAST "domainsnapshot")) {
virReportError(VIR_ERR_XML_ERROR, "%s", _("domainsnapshot"));
goto cleanup;
}
gettimeofday(&tv, NULL);
def->name = virXPathString("string(./name)", ctxt);
if (def->name == NULL) {
if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("a redefined snapshot must have a name"));
goto cleanup;
}
if (virAsprintf(&def->name, "%lld", (long long)tv.tv_sec) < 0) {
virReportOOMError();
goto cleanup;
}
}
def->description = virXPathString("string(./description)", ctxt);
if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
if (virXPathLongLong("string(./creationTime)", ctxt,
&def->creationTime) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing creationTime from existing snapshot"));
goto cleanup;
}
def->parent = virXPathString("string(./parent/name)", ctxt);
state = virXPathString("string(./state)", ctxt);
if (state == NULL) {
/* there was no state in an existing snapshot; this
* should never happen
*/
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing state from existing snapshot"));
goto cleanup;
}
def->state = virDomainSnapshotStateTypeFromString(state);
if (def->state < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("Invalid state '%s' in domain snapshot XML"),
state);
goto cleanup;
}
offline = (def->state == VIR_DOMAIN_SHUTOFF ||
def->state == VIR_DOMAIN_DISK_SNAPSHOT);
/* Older snapshots were created with just <domain>/<uuid>, and
* lack domain/@type. In that case, leave dom NULL, and
* clients will have to decide between best effort
* initialization or outright failure. */
if ((tmp = virXPathString("string(./domain/@type)", ctxt))) {
xmlNodePtr domainNode = virXPathNode("./domain", ctxt);
VIR_FREE(tmp);
if (!domainNode) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing domain in snapshot"));
goto cleanup;
}
def->dom = virDomainDefParseNode(caps, xml, domainNode,
expectedVirtTypes,
(VIR_DOMAIN_XML_INACTIVE |
VIR_DOMAIN_XML_SECURE));
if (!def->dom)
goto cleanup;
} else {
VIR_WARN("parsing older snapshot that lacks domain");
}
} else {
def->creationTime = tv.tv_sec;
}
memorySnapshot = virXPathString("string(./memory/@snapshot)", ctxt);
memoryFile = virXPathString("string(./memory/@file)", ctxt);
if (memorySnapshot) {
def->memory = virDomainSnapshotLocationTypeFromString(memorySnapshot);
if (def->memory <= 0) {
virReportError(VIR_ERR_XML_ERROR,
_("unknown memory snapshot setting '%s'"),
memorySnapshot);
goto cleanup;
}
if (memoryFile &&
def->memory != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
virReportError(VIR_ERR_XML_ERROR,
_("memory filename '%s' requires external snapshot"),
memoryFile);
goto cleanup;
}
if (!memoryFile &&
def->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("external memory snapshots require a filename"));
goto cleanup;
}
} else if (memoryFile) {
def->memory = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
} else if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
def->memory = (offline ?
VIR_DOMAIN_SNAPSHOT_LOCATION_NONE :
VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL);
}
if (offline && def->memory &&
def->memory != VIR_DOMAIN_SNAPSHOT_LOCATION_NONE) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("memory state cannot be saved with offline or "
"disk-only snapshot"));
goto cleanup;
}
def->file = memoryFile;
memoryFile = NULL;
if ((i = virXPathNodeSet("./disks/*", ctxt, &nodes)) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_DISKS) {
def->ndisks = i;
if (def->ndisks && VIR_ALLOC_N(def->disks, def->ndisks) < 0) {
virReportOOMError();
goto cleanup;
}
for (i = 0; i < def->ndisks; i++) {
if (virDomainSnapshotDiskDefParseXML(nodes[i], &def->disks[i]) < 0)
goto cleanup;
}
VIR_FREE(nodes);
} else if (i) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("unable to handle disk requests in snapshot"));
goto cleanup;
}
if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL) {
if (virXPathInt("string(./active)", ctxt, &active) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Could not find 'active' element"));
goto cleanup;
}
def->current = active != 0;
}
ret = def;
cleanup:
VIR_FREE(creation);
VIR_FREE(state);
VIR_FREE(nodes);
VIR_FREE(memorySnapshot);
VIR_FREE(memoryFile);
xmlXPathFreeContext(ctxt);
if (ret == NULL)
virDomainSnapshotDefFree(def);
xmlFreeDoc(xml);
return ret;
}