static int
virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
virDomainSnapshotDiskDefPtr def)
{
int ret = -1;
char *snapshot = NULL;
xmlNodePtr cur;
def->name = virXMLPropString(node, "name");
if (!def->name) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing name from disk snapshot element"));
goto cleanup;
}
snapshot = virXMLPropString(node, "snapshot");
if (snapshot) {
def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
if (def->snapshot <= 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown disk snapshot setting '%s'"),
snapshot);
goto cleanup;
}
}
cur = node->children;
while (cur) {
if (cur->type == XML_ELEMENT_NODE) {
if (!def->file &&
xmlStrEqual(cur->name, BAD_CAST "source")) {
def->file = virXMLPropString(cur, "file");
} else if (!def->format &&
xmlStrEqual(cur->name, BAD_CAST "driver")) {
char *driver = virXMLPropString(cur, "type");
def->format = virStorageFileFormatTypeFromString(driver);
if (def->format <= 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown disk snapshot driver '%s'"),
driver);
VIR_FREE(driver);
goto cleanup;
}
VIR_FREE(driver);
}
}
cur = cur->next;
}
if (!def->snapshot && (def->file || def->format))
def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
ret = 0;
cleanup:
VIR_FREE(snapshot);
if (ret < 0)
virDomainSnapshotDiskDefClear(def);
return ret;
}
void virDomainSnapshotDefFree(virDomainSnapshotDefPtr def)
{
int i;
if (!def)
return;
VIR_FREE(def->name);
VIR_FREE(def->description);
VIR_FREE(def->parent);
for (i = 0; i < def->ndisks; i++)
virDomainSnapshotDiskDefClear(&def->disks[i]);
VIR_FREE(def->disks);
virDomainDefFree(def->dom);
VIR_FREE(def);
}
static int
virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
xmlXPathContextPtr ctxt,
virDomainSnapshotDiskDefPtr def)
{
int ret = -1;
char *snapshot = NULL;
char *type = NULL;
xmlNodePtr cur;
if (VIR_ALLOC(def->src) < 0)
goto cleanup;
def->name = virXMLPropString(node, "name");
if (!def->name) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing name from disk snapshot element"));
goto cleanup;
}
snapshot = virXMLPropString(node, "snapshot");
if (snapshot) {
def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
if (def->snapshot <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown disk snapshot setting '%s'"),
snapshot);
goto cleanup;
}
}
if ((type = virXMLPropString(node, "type"))) {
if ((def->src->type = virStorageTypeFromString(type)) <= 0 ||
def->src->type == VIR_STORAGE_TYPE_VOLUME ||
def->src->type == VIR_STORAGE_TYPE_DIR) {
virReportError(VIR_ERR_XML_ERROR,
_("unknown disk snapshot type '%s'"), type);
goto cleanup;
}
} else {
def->src->type = VIR_STORAGE_TYPE_FILE;
}
for (cur = node->children; cur; cur = cur->next) {
if (cur->type != XML_ELEMENT_NODE)
continue;
if (!def->src->path &&
xmlStrEqual(cur->name, BAD_CAST "source")) {
if (virDomainDiskSourceParse(cur, ctxt, def->src) < 0)
goto cleanup;
} else if (!def->src->format &&
xmlStrEqual(cur->name, BAD_CAST "driver")) {
char *driver = virXMLPropString(cur, "type");
if (driver) {
def->src->format = virStorageFileFormatTypeFromString(driver);
if (def->src->format < VIR_STORAGE_FILE_BACKING) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
def->src->format <= 0
? _("unknown disk snapshot driver '%s'")
: _("disk format '%s' lacks backing file "
"support"),
driver);
VIR_FREE(driver);
goto cleanup;
}
VIR_FREE(driver);
}
}
}
/* validate that the passed path is absolute */
if (virStorageSourceIsLocalStorage(def->src) &&
def->src->path &&
def->src->path[0] != '/') {
virReportError(VIR_ERR_XML_ERROR,
_("disk snapshot image path '%s' must be absolute"),
def->src->path);
goto cleanup;
}
if (!def->snapshot && (def->src->path || def->src->format))
def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
ret = 0;
cleanup:
VIR_FREE(snapshot);
VIR_FREE(type);
if (ret < 0)
virDomainSnapshotDiskDefClear(def);
return ret;
}