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libvirt/tests/qemuhotplugtest.c

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/*
* Copyright (C) 2011-2013 Red Hat, Inc.
*
* 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 "qemu/qemu_conf.h"
#include "qemu/qemu_hotplug.h"
#include "qemumonitortestutils.h"
#include "testutils.h"
#include "testutilsqemu.h"
#include "virerror.h"
#include "virstring.h"
#include "virthread.h"
#include "virfile.h"
#define VIR_FROM_THIS VIR_FROM_NONE
static virQEMUDriver driver;
enum {
ATTACH,
DETACH,
UPDATE
};
struct qemuHotplugTestData {
const char *domain_filename;
const char *device_filename;
bool fail;
const char *const *mon;
int action;
bool keep;
virDomainObjPtr vm;
};
static int
qemuHotplugCreateObjects(virDomainXMLOptionPtr xmlopt,
virDomainObjPtr *vm,
const char *domxml)
{
int ret = -1;
qemuDomainObjPrivatePtr priv = NULL;
if (!(*vm = virDomainObjNew(xmlopt)))
goto cleanup;
if (!((*vm)->def = virDomainDefParseString(domxml,
driver.caps,
driver.xmlopt,
QEMU_EXPECTED_VIRT_TYPES,
0)))
goto cleanup;
priv = (*vm)->privateData;
if (!(priv->qemuCaps = virQEMUCapsNew()))
goto cleanup;
/* for attach & detach qemu must support -device */
virQEMUCapsSet(priv->qemuCaps, QEMU_CAPS_DEVICE);
ret = 0;
cleanup:
return ret;
}
static int
testQemuHotplugAttach(virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_CHR:
ret = qemuDomainAttachChrDevice(&driver, vm, dev->data.chr);
if (!ret) {
/* vm->def stolen dev->data.chr so we ought to avoid freeing it */
dev->data.chr = NULL;
}
break;
default:
if (virTestGetVerbose())
fprintf(stderr, "device type '%s' cannot be attached\n",
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
testQemuHotplugDetach(virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_CHR:
ret = qemuDomainDetachChrDevice(&driver, vm, dev->data.chr);
break;
default:
if (virTestGetVerbose())
fprintf(stderr, "device type '%s' cannot be detached\n",
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
testQemuHotplugUpdate(virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
/* XXX Ideally, we would call qemuDomainUpdateDeviceLive here. But that
* would require us to provide virConnectPtr and virDomainPtr (they're used
* in case of updating a disk device. So for now, we will proceed with
* breaking the function into pieces. If we ever learn how to fake those
* required object, we can replace this code then. */
switch (dev->type) {
case VIR_DOMAIN_DEVICE_GRAPHICS:
ret = qemuDomainChangeGraphics(&driver, vm, dev->data.graphics);
break;
default:
if (virTestGetVerbose())
fprintf(stderr, "device type '%s' cannot be updated\n",
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
testQemuHotplugCheckResult(virDomainObjPtr vm,
const char *expected,
bool fail)
{
char *actual;
int ret;
actual = virDomainDefFormat(vm->def, VIR_DOMAIN_XML_SECURE);
if (!actual)
return -1;
if (STREQ(expected, actual)) {
if (fail && virTestGetVerbose())
fprintf(stderr, "domain XML should not match the expected result\n");
ret = 0;
} else {
if (!fail)
virtTestDifference(stderr, expected, actual);
ret = -1;
}
VIR_FREE(actual);
return ret;
}
static int
testQemuHotplug(const void *data)
{
int ret = -1;
struct qemuHotplugTestData *test = (struct qemuHotplugTestData *) data;
char *domain_filename = NULL;
char *device_filename = NULL;
char *result_filename = NULL;
char *domain_xml = NULL;
char *device_xml = NULL;
char *result_xml = NULL;
const char *const *tmp;
bool fail = test->fail;
bool keep = test->keep;
virDomainObjPtr vm = NULL;
virDomainDeviceDefPtr dev = NULL;
virCapsPtr caps = NULL;
qemuMonitorTestPtr test_mon = NULL;
qemuDomainObjPrivatePtr priv = NULL;
if (virAsprintf(&domain_filename, "%s/qemuxml2argvdata/qemuxml2argv-%s.xml",
abs_srcdir, test->domain_filename) < 0 ||
virAsprintf(&device_filename, "%s/qemuhotplugtestdata/qemuhotplug-%s.xml",
abs_srcdir, test->device_filename) < 0 ||
virAsprintf(&result_filename,
"%s/qemuhotplugtestdata/qemuhotplug-%s+%s.xml",
abs_srcdir, test->domain_filename,
test->device_filename) < 0)
goto cleanup;
if (virtTestLoadFile(domain_filename, &domain_xml) < 0 ||
virtTestLoadFile(device_filename, &device_xml) < 0)
goto cleanup;
if (test->action != UPDATE &&
virtTestLoadFile(result_filename, &result_xml) < 0)
goto cleanup;
if (!(caps = virQEMUDriverGetCapabilities(&driver, false)))
goto cleanup;
if (test->vm) {
vm = test->vm;
} else {
if (qemuHotplugCreateObjects(driver.xmlopt, &vm, domain_xml) < 0)
goto cleanup;
}
if (!(dev = virDomainDeviceDefParse(device_xml, vm->def,
caps, driver.xmlopt, 0)))
goto cleanup;
/* Now is the best time to feed the spoofed monitor with predefined
* replies. */
if (!(test_mon = qemuMonitorTestNew(true, driver.xmlopt)))
goto cleanup;
tmp = test->mon;
while (tmp && *tmp) {
const char *command_name;
const char *response;
if (!(command_name = *tmp++) ||
!(response = *tmp++))
break;
if (qemuMonitorTestAddItem(test_mon, command_name, response) < 0)
goto cleanup;
}
priv = vm->privateData;
priv->mon = qemuMonitorTestGetMonitor(test_mon);
priv->monJSON = true;
/* XXX We need to unlock the monitor here, as
* qemuDomainObjEnterMonitorInternal (called from qemuDomainChangeGraphics)
* tries to lock it again */
virObjectUnlock(priv->mon);
switch (test->action) {
case ATTACH:
ret = testQemuHotplugAttach(vm, dev);
if (ret == 0 || fail)
ret = testQemuHotplugCheckResult(vm, result_xml, fail);
break;
case DETACH:
ret = testQemuHotplugDetach(vm, dev);
if (ret == 0 || fail)
ret = testQemuHotplugCheckResult(vm, domain_xml, fail);
break;
case UPDATE:
ret = testQemuHotplugUpdate(vm, dev);
}
cleanup:
VIR_FREE(domain_filename);
VIR_FREE(device_filename);
VIR_FREE(result_filename);
VIR_FREE(domain_xml);
VIR_FREE(device_xml);
VIR_FREE(result_xml);
/* don't dispose test monitor with VM */
if (priv)
priv->mon = NULL;
if (keep) {
test->vm = vm;
} else {
virObjectUnref(vm);
test->vm = NULL;
}
virDomainDeviceDefFree(dev);
virObjectUnref(caps);
qemuMonitorTestFree(test_mon);
return ((ret < 0 && fail) || (!ret && !fail)) ? 0 : -1;
}
static int
mymain(void)
{
int ret = 0;
struct qemuHotplugTestData data = {0};
#if !WITH_YAJL
fputs("libvirt not compiled with yajl, skipping this test\n", stderr);
return EXIT_AM_SKIP;
#endif
if (virThreadInitialize() < 0 ||
!(driver.caps = testQemuCapsInit()) ||
!(driver.xmlopt = virQEMUDriverCreateXMLConf(&driver)))
return EXIT_FAILURE;
virEventRegisterDefaultImpl();
driver.config = virQEMUDriverConfigNew(false);
VIR_FREE(driver.config->spiceListen);
VIR_FREE(driver.config->vncListen);
if (!(driver.domainEventState = virDomainEventStateNew()))
return EXIT_FAILURE;
/* some dummy values from 'config file' */
if (VIR_STRDUP_QUIET(driver.config->spicePassword, "123456") < 0)
return EXIT_FAILURE;
#define DO_TEST(file, ACTION, dev, fial, kep, ...) \
do { \
const char *my_mon[] = { __VA_ARGS__, NULL}; \
const char *name = file " " #ACTION " " dev; \
data.action = ACTION; \
data.domain_filename = file; \
data.device_filename = dev; \
data.fail = fial; \
data.mon = my_mon; \
data.keep = kep; \
if (virtTestRun(name, 1, testQemuHotplug, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_ATTACH(file, dev, fial, kep, ...) \
DO_TEST(file, ATTACH, dev, fial, kep, __VA_ARGS__)
#define DO_TEST_DETACH(file, dev, fial, kep, ...) \
DO_TEST(file, DETACH, dev, fial, kep, __VA_ARGS__)
#define DO_TEST_UPDATE(file, dev, fial, kep, ...) \
DO_TEST(file, UPDATE, dev, fial, kep, __VA_ARGS__)
#define QMP_OK "{\"return\": {}}"
DO_TEST_UPDATE("graphics-spice", "graphics-spice-nochange", false, false, NULL);
DO_TEST_UPDATE("graphics-spice-timeout", "graphics-spice-timeout-nochange", false, false,
"set_password", QMP_OK, "expire_password", QMP_OK);
DO_TEST_UPDATE("graphics-spice-timeout", "graphics-spice-timeout-password", false, false,
"set_password", QMP_OK, "expire_password", QMP_OK);
DO_TEST_UPDATE("graphics-spice", "graphics-spice-listen", true, false, NULL);
DO_TEST_UPDATE("graphics-spice-listen-network", "graphics-spice-listen-network", false, false,
"set_password", QMP_OK, "expire_password", QMP_OK);
/* Strange huh? Currently, only graphics can be updated :-P */
DO_TEST_UPDATE("disk-cdrom", "disk-cdrom-nochange", true, false, NULL);
DO_TEST_ATTACH("console-compat-2", "console-virtio", false, true,
"chardev-add", "{\"return\": {\"pty\": \"/dev/pts/26\"}}",
"device_add", QMP_OK);
DO_TEST_DETACH("console-compat-2", "console-virtio", false, false,
"device_del", QMP_OK,
"chardev-remove", QMP_OK);
virObjectUnref(driver.caps);
virObjectUnref(driver.xmlopt);
virObjectUnref(driver.config);
return (ret == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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