To support testing of "volume" disk backing, we need to implement a few
disk driver backend functions.
The fake storage driver uses files in storagepoolxml2xmlout/POOLNAME.xml
as XML files for pool definitions and volume names are in format
"VOL_TYPE+VOL_PATH". By default type "block" is assumed (for iSCSI test
compatibility).
The choice of this approach along with implemented functions was made so
that <disk type='volume'> can be tested in the xml2argv test.
---
tests/qemuxml2argvtest.c | 162 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 162 insertions(+)
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index a290062..a4cef84 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -18,6 +18,7 @@
# include "qemu/qemu_command.h"
# include "qemu/qemu_domain.h"
# include "datatypes.h"
+# include "conf/storage_conf.h"
# include "cpu/cpu_map.h"
# include "virstring.h"
@@ -75,6 +76,161 @@ static virSecretDriver fakeSecretDriver = {
.secretUndefine = NULL,
};
+
+# define STORAGE_POOL_XML_PATH "storagepoolxml2xmlout/"
+static const unsigned char fakeUUID[VIR_UUID_BUFLEN] = "fakeuuid";
+
+static virStoragePoolPtr
+fakeStoragePoolLookupByName(virConnectPtr conn,
+ const char *name)
+{
+ char *xmlpath = NULL;
+ virStoragePoolPtr ret = NULL;
+
+ if (STRNEQ(name, "inactive")) {
+ if (virAsprintf(&xmlpath, "%s%s.xml",
+ STORAGE_POOL_XML_PATH,
+ name) < 0)
+ return NULL;
+
+ if (!virFileExists(xmlpath)) {
+ virReportError(VIR_ERR_NO_STORAGE_POOL,
+ "File '%s' not found", xmlpath);
+ goto cleanup;
+ }
+ }
+
+ ret = virGetStoragePool(conn, name, fakeUUID, NULL, NULL);
+
+cleanup:
+ VIR_FREE(xmlpath);
+ return ret;
+}
+
+
+static virStorageVolPtr
+fakeStorageVolLookupByName(virStoragePoolPtr pool,
+ const char *name)
+{
+ char **volinfo = NULL;
+ virStorageVolPtr ret = NULL;
+
+ if (STREQ(pool->name, "inactive")) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "storage pool '%s' is not active", pool->name);
+ return NULL;
+ }
+
+ if (STREQ(name, "nonexistent")) {
+ virReportError(VIR_ERR_NO_STORAGE_VOL,
+ "no storage vol with matching name '%s'", name);
+ return NULL;
+ }
+
+ if (!strchr(name, '+'))
+ goto fallback;
+
+ if (!(volinfo = virStringSplit(name, "+", 2)))
+ return NULL;
+
+ if (!volinfo[1])
+ goto fallback;
+
+ ret = virGetStorageVol(pool->conn, pool->name, volinfo[1], volinfo[0],
+ NULL, NULL);
+
+cleanup:
+ virStringFreeList(volinfo);
+ return ret;
+
+fallback:
+ ret = virGetStorageVol(pool->conn, pool->name, name, "block", NULL, NULL);
+ goto cleanup;
+}
+
+static int
+fakeStorageVolGetInfo(virStorageVolPtr vol,
+ virStorageVolInfoPtr info)
+{
+ memset(info, 0, sizeof(*info));
+
+ info->type = virStorageVolTypeFromString(vol->key);
+
+ if (info->type < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ "Invalid volume type '%s'", vol->key);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static char *
+fakeStorageVolGetPath(virStorageVolPtr vol)
+{
+ char *ret = NULL;
+
+ ignore_value(virAsprintf(&ret, "/some/%s/device/%s", vol->key, vol->name));
+
+ return ret;
+}
+
+
+static char *
+fakeStoragePoolDumpXML(virStoragePoolPtr pool,
+ unsigned int flags_unused ATTRIBUTE_UNUSED)
+{
+ char *xmlpath = NULL;
+ char *xmlbuf = NULL;
+
+ if (STREQ(pool->name, "inactive")) {
+ virReportError(VIR_ERR_NO_STORAGE_POOL, NULL);
+ return NULL;
+ }
+
+ if (virAsprintf(&xmlpath, "%s%s.xml",
+ STORAGE_POOL_XML_PATH,
+ pool->name) < 0)
+ return NULL;
+
+ if (virtTestLoadFile(xmlpath, &xmlbuf) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ "failed to load XML file '%s'",
+ xmlpath);
+ goto cleanup;
+ }
+
+cleanup:
+ VIR_FREE(xmlpath);
+
+ return xmlbuf;
+}
+
+static int
+fakeStorageClose(virConnectPtr conn ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+static int
+fakeStoragePoolIsActive(virStoragePoolPtr pool ATTRIBUTE_UNUSED)
+{
+ return 1;
+}
+
+
+static virStorageDriver fakeStorageDriver = {
+ .name = "fake_storage",
+ .storageClose = fakeStorageClose,
+ .storagePoolLookupByName = fakeStoragePoolLookupByName,
+ .storageVolLookupByName = fakeStorageVolLookupByName,
+ .storagePoolGetXMLDesc = fakeStoragePoolDumpXML,
+ .storageVolGetPath = fakeStorageVolGetPath,
+ .storageVolGetInfo = fakeStorageVolGetInfo,
+ .storagePoolIsActive = fakeStoragePoolIsActive,
+};
+
typedef enum {
FLAG_EXPECT_ERROR = 1 << 0,
FLAG_EXPECT_FAILURE = 1 << 1,
@@ -103,6 +259,7 @@ static int testCompareXMLToArgvFiles(const char *xml,
if (!(conn = virGetConnect()))
goto out;
conn->secretDriver = &fakeSecretDriver;
+ conn->storageDriver = &fakeStorageDriver;
if (!(vmdef = virDomainDefParseFile(xml, driver.caps, driver.xmlopt,
QEMU_EXPECTED_VIRT_TYPES,
@@ -165,6 +322,11 @@ static int testCompareXMLToArgvFiles(const char *xml,
}
}
+ for (i = 0; i < vmdef->ndisks; i++) {
+ if (qemuTranslateDiskSourcePool(conn, vmdef->disks[i]) < 0)
+ goto out;
+ }
+
if (!(cmd = qemuBuildCommandLine(conn, &driver, vmdef, &monitor_chr,
(flags & FLAG_JSON), extraFlags,
migrateFrom, migrateFd, NULL,
--
1.8.4.3
--
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