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3e1d2c93a3
The default value hard-coded in QEMU (64KiB) is not always the ideal.
Having a possibility to set the cluster_size by user may in specific
use-cases improve performance for QCOW2 images.
QEMU internally has some limits, the value has to be between 512B and
2048KiB and must by power of two, except when the image has Extended L2
Entries the minimal value has to be 16KiB.
Since qemu-img ensures the value is correct and the limit is not always
the same libvirt will not duplicate any of these checks as the error
message from qemu-img is good enough:
Cluster size must be a power of two between 512 and 2048k
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/154
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
302 lines
9.7 KiB
C
302 lines
9.7 KiB
C
#include <config.h>
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#include "internal.h"
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#include "testutils.h"
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#include "datatypes.h"
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#include "storage/storage_util.h"
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#include "testutilsqemu.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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const char create_tool[] = "qemu-img";
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/* createVol sets this on volume creation */
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static void
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testSetVolumeType(virStorageVolDef *vol,
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virStoragePoolDef *pool)
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{
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if (!vol || !pool)
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return;
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switch (pool->type) {
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case VIR_STORAGE_POOL_DIR:
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case VIR_STORAGE_POOL_FS:
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case VIR_STORAGE_POOL_NETFS:
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vol->type = VIR_STORAGE_VOL_FILE;
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return;
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case VIR_STORAGE_POOL_LOGICAL:
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vol->type = VIR_STORAGE_VOL_BLOCK;
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return;
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}
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}
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static int
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testCompareXMLToArgvFiles(bool shouldFail,
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const char *poolxml,
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const char *volxml,
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const char *inputpoolxml,
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const char *inputvolxml,
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const char *cmdline,
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unsigned int flags,
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unsigned long parse_flags)
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{
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virStorageVolEncryptConvertStep convertStep = VIR_STORAGE_VOL_ENCRYPT_NONE;
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int ret = -1;
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virStoragePoolDef *def = NULL;
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virStoragePoolObj *obj = NULL;
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g_autofree char *actualCmdline = NULL;
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g_autoptr(virStorageVolDef) vol = NULL;
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g_autoptr(virStorageVolDef) inputvol = NULL;
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g_autoptr(virStoragePoolDef) inputpool = NULL;
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g_autoptr(virCommand) cmd = NULL;
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if (!(def = virStoragePoolDefParseFile(poolxml)))
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goto cleanup;
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if (!(obj = virStoragePoolObjNew())) {
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virStoragePoolDefFree(def);
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goto cleanup;
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}
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virStoragePoolObjSetDef(obj, def);
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if (inputpoolxml) {
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if (!(inputpool = virStoragePoolDefParseFile(inputpoolxml)))
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goto cleanup;
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}
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if (inputvolxml)
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parse_flags |= VIR_VOL_XML_PARSE_NO_CAPACITY;
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if (!(vol = virStorageVolDefParseFile(def, volxml, parse_flags)))
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goto cleanup;
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if (inputvolxml &&
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!(inputvol = virStorageVolDefParseFile(inputpool, inputvolxml, 0)))
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goto cleanup;
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testSetVolumeType(vol, def);
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testSetVolumeType(inputvol, inputpool);
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/* Using an input file for encryption requires a multi-step process
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* to create an image of the same size as the inputvol and then to
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* convert the inputvol afterwards. Since we only care about the
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* command line we have to copy code from storageBackendCreateQemuImg
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* and adjust it for the test needs. */
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if (inputvol && (vol->target.encryption || inputvol->target.encryption))
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convertStep = VIR_STORAGE_VOL_ENCRYPT_CREATE;
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do {
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virCommandFree(cmd);
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cmd = virStorageBackendCreateQemuImgCmdFromVol(obj, vol,
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inputvol, flags,
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create_tool,
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"/path/to/secretFile",
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"/path/to/inputSecretFile",
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convertStep);
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if (!cmd) {
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if (shouldFail) {
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virResetLastError();
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ret = 0;
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}
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goto cleanup;
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}
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if (convertStep != VIR_STORAGE_VOL_ENCRYPT_CONVERT) {
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if (!(actualCmdline = virCommandToString(cmd, true)))
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goto cleanup;
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} else {
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char *createCmdline = actualCmdline;
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g_autofree char *cvtCmdline = NULL;
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if (!(cvtCmdline = virCommandToString(cmd, true)))
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goto cleanup;
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actualCmdline = g_strdup_printf("%s\n%s", createCmdline, cvtCmdline);
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VIR_FREE(createCmdline);
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}
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if (convertStep == VIR_STORAGE_VOL_ENCRYPT_NONE)
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convertStep = VIR_STORAGE_VOL_ENCRYPT_DONE;
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else if (convertStep == VIR_STORAGE_VOL_ENCRYPT_CREATE)
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convertStep = VIR_STORAGE_VOL_ENCRYPT_CONVERT;
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else if (convertStep == VIR_STORAGE_VOL_ENCRYPT_CONVERT)
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convertStep = VIR_STORAGE_VOL_ENCRYPT_DONE;
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} while (convertStep != VIR_STORAGE_VOL_ENCRYPT_DONE);
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if (virTestCompareToFileFull(actualCmdline, cmdline, false) < 0)
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goto cleanup;
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ret = 0;
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cleanup:
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virStoragePoolObjEndAPI(&obj);
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return ret;
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}
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struct testInfo {
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bool shouldFail;
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const char *pool;
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const char *vol;
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const char *inputpool;
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const char *inputvol;
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const char *cmdline;
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unsigned int flags;
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unsigned long parseflags;
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};
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static int
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testCompareXMLToArgvHelper(const void *data)
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{
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const struct testInfo *info = data;
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g_autofree char *poolxml = NULL;
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g_autofree char *inputpoolxml = NULL;
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g_autofree char *volxml = NULL;
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g_autofree char *inputvolxml = NULL;
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g_autofree char *cmdline = NULL;
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if (info->inputvol)
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inputvolxml = g_strdup_printf("%s/storagevolxml2xmlin/%s.xml",
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abs_srcdir, info->inputvol);
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if (info->inputpool)
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inputpoolxml = g_strdup_printf("%s/storagepoolxml2xmlin/%s.xml",
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abs_srcdir, info->inputpool);
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poolxml = g_strdup_printf("%s/storagepoolxml2xmlin/%s.xml",
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abs_srcdir, info->pool);
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volxml = g_strdup_printf("%s/storagevolxml2xmlin/%s.xml",
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abs_srcdir, info->vol);
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cmdline = g_strdup_printf("%s/storagevolxml2argvdata/%s.argv",
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abs_srcdir, info->cmdline);
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return testCompareXMLToArgvFiles(info->shouldFail, poolxml, volxml,
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inputpoolxml, inputvolxml,
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cmdline, info->flags,
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info->parseflags);
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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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unsigned int flags = VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
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#define DO_TEST_FULL(shouldFail, parseflags, pool, vol, inputpool, inputvol, \
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cmdline, flags) \
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do { \
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struct testInfo info = { shouldFail, pool, vol, inputpool, inputvol, \
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cmdline, flags, parseflags }; \
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if (virTestRun("Storage Vol XML-2-argv " cmdline, \
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testCompareXMLToArgvHelper, &info) < 0) \
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ret = -1; \
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} \
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while (0);
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#define DO_TEST(pool, ...) \
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DO_TEST_FULL(false, 0, pool, __VA_ARGS__)
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#define DO_TEST_FAIL(pool, ...) \
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DO_TEST_FULL(true, 0, pool, __VA_ARGS__)
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DO_TEST("pool-dir", "vol-qcow2",
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NULL, NULL,
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"qcow2-compat", 0);
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DO_TEST("pool-dir", "vol-qcow2-nobacking",
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NULL, NULL,
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"qcow2-nobacking-prealloc-compat", flags);
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DO_TEST("pool-dir", "vol-qcow2-nobacking",
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"pool-dir", "vol-file",
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"qcow2-nobacking-convert-prealloc-compat", flags);
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DO_TEST("pool-dir", "vol-qcow2-lazy",
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NULL, NULL,
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"qcow2-lazy", 0);
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DO_TEST("pool-dir", "vol-qcow2-1.1",
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NULL, NULL,
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"qcow2-1.1", 0);
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DO_TEST_FAIL("pool-dir", "vol-qcow2-0.10-lazy",
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NULL, NULL,
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"qcow2-0.10-lazy", 0);
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DO_TEST("pool-dir", "vol-qcow2-nobacking",
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"pool-logical", "vol-logical",
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"qcow2-from-logical-compat", 0);
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DO_TEST("pool-logical", "vol-logical",
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"pool-dir", "vol-qcow2-nobacking",
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"logical-from-qcow2", 0);
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DO_TEST("pool-dir", "vol-qcow2-nocow",
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NULL, NULL,
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"qcow2-nocow-compat", 0);
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DO_TEST("pool-dir", "vol-qcow2-nocapacity",
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"pool-dir", "vol-file",
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"qcow2-nocapacity-convert-prealloc", flags);
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DO_TEST("pool-dir", "vol-qcow2-zerocapacity",
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NULL, NULL,
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"qcow2-zerocapacity", 0);
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DO_TEST_FULL(false, VIR_VOL_XML_PARSE_OPT_CAPACITY,
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"pool-dir", "vol-qcow2-nocapacity-backing", NULL, NULL,
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"qcow2-nocapacity", 0);
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DO_TEST("pool-dir", "vol-qcow2-clusterSize",
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NULL, NULL,
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"qcow2-clusterSize", 0);
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DO_TEST("pool-dir", "vol-file-iso",
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NULL, NULL,
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"iso", 0);
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DO_TEST("pool-dir", "vol-file",
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"pool-dir", "vol-file-iso",
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"iso-input", 0);
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DO_TEST_FAIL("pool-dir", "vol-qcow2-encryption",
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NULL, NULL,
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"qcow2-encryption", 0);
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DO_TEST("pool-dir", "vol-luks",
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NULL, NULL,
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"luks", 0);
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DO_TEST("pool-dir", "vol-luks-cipher",
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NULL, NULL,
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"luks-cipher", 0);
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DO_TEST("pool-dir", "vol-qcow2-luks",
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NULL, NULL,
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"qcow2-luks", 0);
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DO_TEST("pool-dir", "vol-luks-convert",
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"pool-dir", "vol-file",
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"luks-convert", 0);
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DO_TEST("pool-dir", "vol-luks-convert",
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"pool-dir", "vol-file-qcow2",
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"luks-convert-qcow2", 0);
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DO_TEST("pool-dir", "vol-luks",
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"pool-dir", "vol-luks-convert",
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"luks-convert-encrypt", 0);
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DO_TEST("pool-dir", "vol-file",
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"pool-dir", "vol-luks-convert",
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"luks-convert-encrypt2fileraw", 0);
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DO_TEST("pool-dir", "vol-file-qcow2",
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"pool-dir", "vol-luks-convert",
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"luks-convert-encrypt2fileqcow2", 0);
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DO_TEST("pool-dir", "vol-qcow2-luks",
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"pool-dir", "vol-qcow2-luks-convert",
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"qcow2-luks-convert-encrypt", 0);
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DO_TEST("pool-dir", "vol-file",
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"pool-dir", "vol-qcow2-luks-convert",
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"qcow2-luks-convert-encrypt2fileraw", 0);
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DO_TEST("pool-dir", "vol-file-qcow2",
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"pool-dir", "vol-qcow2-luks-convert",
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"qcow2-luks-convert-encrypt2fileqcow2", 0);
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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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