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libvirt/tests/qemublocktest.c

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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdlib.h>
#include "testutils.h"
#include "virstoragefile.h"
#include "virstring.h"
#include "virlog.h"
#include "qemu/qemu_block.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.storagetest");
struct testBackingXMLjsonXMLdata {
int type;
const char *xml;
};
static int
testBackingXMLjsonXML(const void *args)
{
const struct testBackingXMLjsonXMLdata *data = args;
xmlDocPtr xml = NULL;
xmlXPathContextPtr ctxt = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virStorageSourcePtr xmlsrc = NULL;
virStorageSourcePtr jsonsrc = NULL;
virJSONValuePtr backendprops = NULL;
virJSONValuePtr wrapper = NULL;
char *propsstr = NULL;
char *protocolwrapper = NULL;
char *actualxml = NULL;
int ret = -1;
if (VIR_ALLOC(xmlsrc) < 0)
return -1;
xmlsrc->type = data->type;
if (!(xml = virXMLParseStringCtxt(data->xml, "(test storage source XML)", &ctxt)))
goto cleanup;
if (virDomainDiskSourceParse(ctxt->node, ctxt, xmlsrc, 0, NULL) < 0) {
fprintf(stderr, "failed to parse disk source xml\n");
goto cleanup;
}
if (!(backendprops = qemuBlockStorageSourceGetBackendProps(xmlsrc, true))) {
fprintf(stderr, "failed to format disk source json\n");
goto cleanup;
}
if (virJSONValueObjectCreate(&wrapper, "a:file", &backendprops, NULL) < 0)
goto cleanup;
if (!(propsstr = virJSONValueToString(wrapper, false)))
goto cleanup;
if (virAsprintf(&protocolwrapper, "json:%s", propsstr) < 0)
goto cleanup;
if (!(jsonsrc = virStorageSourceNewFromBackingAbsolute(protocolwrapper))) {
fprintf(stderr, "failed to parse disk json\n");
goto cleanup;
}
if (virDomainDiskSourceFormat(&buf, jsonsrc, 0, 0, NULL) < 0 ||
!(actualxml = virBufferContentAndReset(&buf))) {
fprintf(stderr, "failed to format disk source xml\n");
goto cleanup;
}
if (STRNEQ(actualxml, data->xml)) {
fprintf(stderr, "\n expected storage source xml:\n'%s'\n"
"actual storage source xml:\n%s\n"
"intermediate json:\n%s\n",
data->xml, actualxml, protocolwrapper);
goto cleanup;
}
ret = 0;
cleanup:
virStorageSourceFree(xmlsrc);
virStorageSourceFree(jsonsrc);
VIR_FREE(propsstr);
VIR_FREE(protocolwrapper);
VIR_FREE(actualxml);
virJSONValueFree(backendprops);
virJSONValueFree(wrapper);
virBufferFreeAndReset(&buf);
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
return ret;
}
static int
mymain(void)
{
int ret = 0;
struct testBackingXMLjsonXMLdata data;
virTestCounterReset("qemu storage source xml->json->xml ");
#define TEST_JSON_FORMAT(tpe, xmlstr) \
do { \
data.type = tpe; \
data.xml = xmlstr; \
if (virTestRun(virTestCounterNext(), testBackingXMLjsonXML, &data) < 0) \
ret = -1; \
} while (0)
#define TEST_JSON_FORMAT_NET(xmlstr)\
TEST_JSON_FORMAT(VIR_STORAGE_TYPE_NETWORK, xmlstr)
TEST_JSON_FORMAT(VIR_STORAGE_TYPE_FILE, "<source file='/path/to/file'/>\n");
/* type VIR_STORAGE_TYPE_BLOCK is not tested since it parses back to 'file' */
/* type VIR_STORAGE_TYPE_DIR it is a 'format' driver in qemu */
TEST_JSON_FORMAT_NET("<source protocol='http' name='file'>\n"
" <host name='example.com' port='80'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='https' name='file'>\n"
" <host name='example.com' port='432'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='gluster' name='vol/file'>\n"
" <host name='example.com' port='24007'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='gluster' name='testvol/img.qcow2'>\n"
" <host name='example.com' port='1234'/>\n"
" <host transport='unix' socket='/path/socket'/>\n"
" <host name='example.com' port='24007'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='nbd'>\n"
" <host transport='unix' socket='/path/to/socket'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='nbd' name='blah'>\n"
" <host name='example.org' port='6000'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='nbd'>\n"
" <host name='example.org' port='6000'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='ssh' name='blah'>\n"
" <host name='example.org' port='6000'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='rbd' name='libvirt/test'>\n"
" <host name='example.com' port='1234'/>\n"
" <host name='example2.com'/>\n"
" <snapshot name='snapshotname'/>\n"
" <config file='/path/to/conf'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='iscsi' name='iqn.2016-12.com.virttest:emulated-iscsi-noauth.target/0'>\n"
" <host name='test.org' port='3260'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='iscsi' name='iqn.2016-12.com.virttest:emulated-iscsi-noauth.target/6'>\n"
" <host name='test.org' port='1234'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='sheepdog' name='test'>\n"
" <host name='example.com' port='321'/>\n"
"</source>\n");
TEST_JSON_FORMAT_NET("<source protocol='vxhs' name='c6718f6b-0401-441d-a8c3-1f0064d75ee0'>\n"
" <host name='example.com' port='9999'/>\n"
"</source>\n");
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN(mymain)