mirror of
https://gitlab.com/libvirt/libvirt.git
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8f60653de3
Add a test infrastructure that will allow testing the JSON object generator used for generating data to use with blockdev-add. The resulting disk including the backing chain is validated to conform to the QAPI schema and the expected output files. The first test cases make sure that libvirt will not allow nodenames exceeding 31 chars. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: John Ferlan <jferlan@redhat.com>
418 lines
13 KiB
C
418 lines
13 KiB
C
/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include "testutils.h"
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#include "testutilsqemu.h"
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#include "testutilsqemuschema.h"
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#include "virstoragefile.h"
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#include "virstring.h"
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#include "virlog.h"
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#include "qemu/qemu_block.h"
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#include "qemu/qemu_qapi.h"
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#include "qemu/qemu_command.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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VIR_LOG_INIT("tests.storagetest");
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struct testBackingXMLjsonXMLdata {
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int type;
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const char *xml;
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};
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static int
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testBackingXMLjsonXML(const void *args)
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{
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const struct testBackingXMLjsonXMLdata *data = args;
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xmlDocPtr xml = NULL;
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xmlXPathContextPtr ctxt = NULL;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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virStorageSourcePtr xmlsrc = NULL;
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virStorageSourcePtr jsonsrc = NULL;
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virJSONValuePtr backendprops = NULL;
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virJSONValuePtr wrapper = NULL;
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char *propsstr = NULL;
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char *protocolwrapper = NULL;
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char *actualxml = NULL;
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int ret = -1;
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if (VIR_ALLOC(xmlsrc) < 0)
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return -1;
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xmlsrc->type = data->type;
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if (!(xml = virXMLParseStringCtxt(data->xml, "(test storage source XML)", &ctxt)))
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goto cleanup;
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if (virDomainDiskSourceParse(ctxt->node, ctxt, xmlsrc, 0, NULL) < 0) {
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fprintf(stderr, "failed to parse disk source xml\n");
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goto cleanup;
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}
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if (!(backendprops = qemuBlockStorageSourceGetBackendProps(xmlsrc, true))) {
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fprintf(stderr, "failed to format disk source json\n");
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goto cleanup;
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}
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if (virJSONValueObjectCreate(&wrapper, "a:file", &backendprops, NULL) < 0)
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goto cleanup;
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if (!(propsstr = virJSONValueToString(wrapper, false)))
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goto cleanup;
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if (virAsprintf(&protocolwrapper, "json:%s", propsstr) < 0)
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goto cleanup;
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if (!(jsonsrc = virStorageSourceNewFromBackingAbsolute(protocolwrapper))) {
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fprintf(stderr, "failed to parse disk json\n");
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goto cleanup;
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}
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if (virDomainDiskSourceFormat(&buf, jsonsrc, 0, 0, NULL) < 0 ||
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!(actualxml = virBufferContentAndReset(&buf))) {
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fprintf(stderr, "failed to format disk source xml\n");
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goto cleanup;
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}
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if (STRNEQ(actualxml, data->xml)) {
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fprintf(stderr, "\n expected storage source xml:\n'%s'\n"
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"actual storage source xml:\n%s\n"
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"intermediate json:\n%s\n",
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data->xml, actualxml, protocolwrapper);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virStorageSourceFree(xmlsrc);
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virStorageSourceFree(jsonsrc);
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VIR_FREE(propsstr);
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VIR_FREE(protocolwrapper);
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VIR_FREE(actualxml);
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virJSONValueFree(backendprops);
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virJSONValueFree(wrapper);
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virBufferFreeAndReset(&buf);
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xmlXPathFreeContext(ctxt);
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xmlFreeDoc(xml);
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return ret;
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}
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struct testQemuDiskXMLToJSONData {
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virQEMUDriverPtr driver;
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virHashTablePtr schema;
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virJSONValuePtr schemaroot;
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const char *name;
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bool fail;
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virJSONValuePtr *props;
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size_t nprops;
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virQEMUCapsPtr qemuCaps;
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};
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static void
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testQemuDiskXMLToPropsClear(struct testQemuDiskXMLToJSONData *data)
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{
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size_t i;
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for (i = 0; i < data->nprops; i++)
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virJSONValueFree(data->props[i]);
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data->nprops = 0;
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VIR_FREE(data->props);
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}
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static const char *testQemuDiskXMLToJSONPath = abs_srcdir "/qemublocktestdata/xml2json/";
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static int
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testQemuDiskXMLToProps(const void *opaque)
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{
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struct testQemuDiskXMLToJSONData *data = (void *) opaque;
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virDomainDiskDefPtr disk = NULL;
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virStorageSourcePtr n;
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virJSONValuePtr props = NULL;
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char *xmlpath = NULL;
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char *xmlstr = NULL;
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int ret = -1;
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if (virAsprintf(&xmlpath, "%s%s.xml",
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testQemuDiskXMLToJSONPath, data->name) < 0)
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goto cleanup;
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if (virTestLoadFile(xmlpath, &xmlstr) < 0)
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goto cleanup;
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/* qemu stores node names in the status XML portion */
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if (!(disk = virDomainDiskDefParse(xmlstr, NULL, data->driver->xmlopt,
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VIR_DOMAIN_DEF_PARSE_STATUS)))
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goto cleanup;
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if (qemuCheckDiskConfig(disk, data->qemuCaps) < 0 ||
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qemuDomainDeviceDefValidateDisk(disk, data->qemuCaps) < 0) {
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VIR_TEST_VERBOSE("invalid configuration for disk\n");
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goto cleanup;
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}
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if (qemuDomainPrepareDiskSourceChain(disk, NULL, NULL, data->qemuCaps) < 0)
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goto cleanup;
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for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
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if (!(props = qemuBlockStorageSourceGetBlockdevProps(n))) {
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if (!data->fail) {
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VIR_TEST_VERBOSE("failed to generate qemu blockdev props\n");
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goto cleanup;
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}
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} else if (data->fail) {
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VIR_TEST_VERBOSE("qemu blockdev props should have failed\n");
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goto cleanup;
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}
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if (VIR_APPEND_ELEMENT(data->props, data->nprops, props) < 0)
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virDomainDiskDefFree(disk);
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VIR_FREE(xmlpath);
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VIR_FREE(xmlstr);
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return ret;
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}
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static int
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testQemuDiskXMLToPropsValidateSchema(const void *opaque)
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{
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struct testQemuDiskXMLToJSONData *data = (void *) opaque;
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virBuffer debug = VIR_BUFFER_INITIALIZER;
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char *propsstr = NULL;
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char *debugmsg = NULL;
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int ret = 0;
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size_t i;
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if (data->fail)
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return EXIT_AM_SKIP;
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for (i = 0; i < data->nprops; i++) {
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if (testQEMUSchemaValidate(data->props[i], data->schemaroot,
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data->schema, &debug) < 0) {
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debugmsg = virBufferContentAndReset(&debug);
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propsstr = virJSONValueToString(data->props[i], true);
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VIR_TEST_VERBOSE("json does not conform to QAPI schema");
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VIR_TEST_DEBUG("json:\n%s\ndoes not match schema. Debug output:\n %s",
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propsstr, NULLSTR(debugmsg));
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VIR_FREE(debugmsg);
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VIR_FREE(propsstr);
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ret = -1;
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}
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virBufferFreeAndReset(&debug);
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}
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return ret;
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}
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static int
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testQemuDiskXMLToPropsValidateFile(const void *opaque)
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{
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struct testQemuDiskXMLToJSONData *data = (void *) opaque;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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char *jsonpath = NULL;
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char *actual = NULL;
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int ret = -1;
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size_t i;
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if (data->fail)
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return EXIT_AM_SKIP;
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if (virAsprintf(&jsonpath, "%s%s.json",
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testQemuDiskXMLToJSONPath, data->name) < 0)
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goto cleanup;
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for (i = 0; i < data->nprops; i++) {
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char *jsonstr;
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if (!(jsonstr = virJSONValueToString(data->props[i], true)))
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goto cleanup;
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virBufferAdd(&buf, jsonstr, -1);
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VIR_FREE(jsonstr);
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}
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if (virBufferCheckError(&buf) < 0)
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goto cleanup;
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actual = virBufferContentAndReset(&buf);
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ret = virTestCompareToFile(actual, jsonpath);
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cleanup:
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VIR_FREE(jsonpath);
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VIR_FREE(actual);
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return ret;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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virQEMUDriver driver;
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struct testBackingXMLjsonXMLdata xmljsonxmldata;
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struct testQemuDiskXMLToJSONData diskxmljsondata;
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char *capslatest_x86_64 = NULL;
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virQEMUCapsPtr caps_x86_64 = NULL;
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if (qemuTestDriverInit(&driver) < 0)
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return EXIT_FAILURE;
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diskxmljsondata.driver = &driver;
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if (!(capslatest_x86_64 = testQemuGetLatestCapsForArch(abs_srcdir "/qemucapabilitiesdata",
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"x86_64", "xml")))
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return EXIT_FAILURE;
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VIR_TEST_VERBOSE("\nlatest caps x86_64: %s\n", capslatest_x86_64);
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if (!(caps_x86_64 = qemuTestParseCapabilitiesArch(virArchFromString("x86_64"),
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capslatest_x86_64)))
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return EXIT_FAILURE;
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diskxmljsondata.qemuCaps = caps_x86_64;
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virTestCounterReset("qemu storage source xml->json->xml ");
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#define TEST_JSON_FORMAT(tpe, xmlstr) \
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do { \
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xmljsonxmldata.type = tpe; \
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xmljsonxmldata.xml = xmlstr; \
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if (virTestRun(virTestCounterNext(), testBackingXMLjsonXML, \
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&xmljsonxmldata) < 0) \
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ret = -1; \
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} while (0)
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#define TEST_JSON_FORMAT_NET(xmlstr)\
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TEST_JSON_FORMAT(VIR_STORAGE_TYPE_NETWORK, xmlstr)
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TEST_JSON_FORMAT(VIR_STORAGE_TYPE_FILE, "<source file='/path/to/file'/>\n");
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/* type VIR_STORAGE_TYPE_BLOCK is not tested since it parses back to 'file' */
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/* type VIR_STORAGE_TYPE_DIR it is a 'format' driver in qemu */
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TEST_JSON_FORMAT_NET("<source protocol='http' name='file'>\n"
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" <host name='example.com' port='80'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='https' name='file'>\n"
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" <host name='example.com' port='432'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='gluster' name='vol/file'>\n"
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" <host name='example.com' port='24007'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='gluster' name='testvol/img.qcow2'>\n"
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" <host name='example.com' port='1234'/>\n"
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" <host transport='unix' socket='/path/socket'/>\n"
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" <host name='example.com' port='24007'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='nbd'>\n"
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" <host transport='unix' socket='/path/to/socket'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='nbd' name='blah'>\n"
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" <host name='example.org' port='6000'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='nbd'>\n"
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" <host name='example.org' port='6000'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='ssh' name='blah'>\n"
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" <host name='example.org' port='6000'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='rbd' name='libvirt/test'>\n"
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" <host name='example.com' port='1234'/>\n"
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" <host name='example2.com'/>\n"
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" <snapshot name='snapshotname'/>\n"
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" <config file='/path/to/conf'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='iscsi' name='iqn.2016-12.com.virttest:emulated-iscsi-noauth.target/0'>\n"
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" <host name='test.org' port='3260'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='iscsi' name='iqn.2016-12.com.virttest:emulated-iscsi-noauth.target/6'>\n"
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" <host name='test.org' port='1234'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='sheepdog' name='test'>\n"
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" <host name='example.com' port='321'/>\n"
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"</source>\n");
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TEST_JSON_FORMAT_NET("<source protocol='vxhs' name='c6718f6b-0401-441d-a8c3-1f0064d75ee0'>\n"
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" <host name='example.com' port='9999'/>\n"
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"</source>\n");
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#define TEST_DISK_TO_JSON_FULL(nme, fl) \
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do { \
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diskxmljsondata.name = nme; \
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diskxmljsondata.props = NULL; \
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diskxmljsondata.nprops = 0; \
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diskxmljsondata.fail = fl; \
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if (virTestRun("disk xml to props " nme, testQemuDiskXMLToProps, \
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&diskxmljsondata) < 0) \
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ret = -1; \
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if (virTestRun("disk xml to props validate schema " nme, \
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testQemuDiskXMLToPropsValidateSchema, &diskxmljsondata) < 0) \
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ret = -1; \
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if (virTestRun("disk xml to props validate file " nme, \
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testQemuDiskXMLToPropsValidateFile, &diskxmljsondata) < 0) \
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ret = -1; \
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testQemuDiskXMLToPropsClear(&diskxmljsondata); \
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} while (0)
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#define TEST_DISK_TO_JSON(nme) TEST_DISK_TO_JSON_FULL(nme, false)
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if (!(diskxmljsondata.schema = testQEMUSchemaLoad())) {
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ret = -1;
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goto cleanup;
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}
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if (virQEMUQAPISchemaPathGet("blockdev-add/arg-type",
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diskxmljsondata.schema,
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&diskxmljsondata.schemaroot) < 0 ||
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!diskxmljsondata.schemaroot) {
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VIR_TEST_VERBOSE("failed to find schema entry for blockdev-add\n");
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ret = -1;
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goto cleanup;
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}
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TEST_DISK_TO_JSON_FULL("nodename-long-format", true);
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TEST_DISK_TO_JSON_FULL("nodename-long-protocol", true);
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cleanup:
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virHashFree(diskxmljsondata.schema);
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qemuTestDriverFree(&driver);
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VIR_FREE(capslatest_x86_64);
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virObjectUnref(caps_x86_64);
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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VIR_TEST_MAIN(mymain)
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