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libvirt/tests/qemunbdkittest.c

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#include <config.h>
#include <fcntl.h>
#include "internal.h"
#include "testutils.h"
#include "testutilsqemu.h"
#include "qemu/qemu_domain.h"
#include "qemu/qemu_nbdkit.h"
#define LIBVIRT_QEMU_NBDKITPRIV_H_ALLOW
#include "qemu/qemu_nbdkitpriv.h"
#include "vircommand.h"
#define LIBVIRT_VIRCOMMANDPRIV_H_ALLOW
#include "vircommandpriv.h"
#include "virutil.h"
#include "virsecret.h"
#include "datatypes.h"
#include "virmock.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
static virQEMUDriver driver;
/* Some mock implementations for testing */
#define PIPE_FD_START 777
static int mockpipefd = PIPE_FD_START;
static int (*real_virPipeQuiet)(int fds[2]);
static void
init_syms(void)
{
VIR_MOCK_REAL_INIT(virPipeQuiet);
}
static int
moveToStableFd(int fd)
{
int newfd;
/* don't overwrite an existing fd */
if (fcntl(mockpipefd, F_GETFD) != -1)
abort();
newfd = dup2(fd, mockpipefd++);
VIR_FORCE_CLOSE(fd);
return newfd;
}
int
virPipeQuiet(int fds[2])
{
int tempfds[2];
init_syms();
if (real_virPipeQuiet(tempfds) < 0)
return -1;
if ((fds[0] = moveToStableFd(tempfds[0])) < 0 ||
(fds[1] = moveToStableFd(tempfds[1])) < 0)
return -1;
return 0;
}
int
virSecretGetSecretString(virConnectPtr conn G_GNUC_UNUSED,
virSecretLookupTypeDef *seclookupdef,
virSecretUsageType secretUsageType,
uint8_t **secret,
size_t *secret_size)
{
char uuidstr[VIR_UUID_BUFLEN];
const char *secretname = NULL;
char *tmp = NULL;
switch (seclookupdef->type) {
case VIR_SECRET_LOOKUP_TYPE_UUID:
virUUIDFormat(seclookupdef->u.uuid, uuidstr);
secretname = uuidstr;
break;
case VIR_SECRET_LOOKUP_TYPE_USAGE:
secretname = seclookupdef->u.usage;
break;
case VIR_SECRET_LOOKUP_TYPE_NONE:
case VIR_SECRET_LOOKUP_TYPE_LAST:
default:
virReportEnumRangeError(virSecretLookupType, seclookupdef->type);
return -1;
};
/* For testing, just generate a value for the secret that includes the type
* and the id of the secret */
tmp = g_strdup_printf("%s-%s-secret", virSecretUsageTypeToString(secretUsageType), secretname);
*secret = (uint8_t*)tmp;
*secret_size = strlen(tmp) + 1;
return 0;
}
virConnectPtr virGetConnectSecret(void)
{
return virGetConnect();
}
/* end of mock implementations */
typedef struct {
const char *name;
char* infile;
char* outtemplate;
qemuNbdkitCaps *nbdkitcaps;
bool expectFail;
} TestInfo;
typedef enum {
NBDKIT_ARG_CAPS,
NBDKIT_ARG_EXPECT_FAIL,
NBDKIT_ARG_END
} NbdkitArgName;
static void
testInfoSetPaths(TestInfo *info)
{
info->infile = g_strdup_printf("%s/qemuxml2argvdata/%s.xml",
abs_srcdir, info->name);
info->outtemplate = g_strdup_printf("%s/qemunbdkitdata/%s",
abs_srcdir, info->name);
}
static void
testInfoClear(TestInfo *info)
{
g_free(info->infile);
g_free(info->outtemplate);
g_clear_object(&info->nbdkitcaps);
}
static void
testInfoSetArgs(TestInfo *info, ...)
{
va_list argptr;
NbdkitArgName argname;
unsigned int cap;
va_start(argptr, info);
while ((argname = va_arg(argptr, NbdkitArgName)) != NBDKIT_ARG_END) {
switch (argname) {
case NBDKIT_ARG_CAPS:
while ((cap = va_arg(argptr, unsigned int)) < QEMU_NBDKIT_CAPS_LAST)
qemuNbdkitCapsSet(info->nbdkitcaps, cap);
break;
case NBDKIT_ARG_EXPECT_FAIL:
info->expectFail = va_arg(argptr, unsigned int);
break;
case NBDKIT_ARG_END:
default:
break;
}
}
}
static int
testNbdkit(const void *data)
{
const TestInfo *info = data;
g_autoptr(virDomainDef) def = NULL;
size_t i;
int ret = 0;
/* restart mock pipe fds so tests are consistent */
mockpipefd = PIPE_FD_START;
if (!virFileExists(info->infile)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"Test input file '%s' is missing", info->infile);
return -1;
}
if (!(def = virDomainDefParseFile(info->infile, driver.xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
return -1;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDef *disk = def->disks[i];
g_autofree char *statedir = g_strdup_printf("/tmp/statedir-%zi", i);
g_autofree char *alias = g_strdup_printf("test-disk-%zi", i);
g_autofree char *cmdfile = g_strdup_printf("%s.args.disk%zi",
info->outtemplate, i);
if (qemuNbdkitInitStorageSource(info->nbdkitcaps, disk->src, statedir,
alias, 101, 101)) {
qemuDomainStorageSourcePrivate *srcPriv =
qemuDomainStorageSourcePrivateFetch(disk->src);
g_autoptr(virCommand) cmd = NULL;
g_autoptr(virCommandDryRunToken) dryRunToken = virCommandDryRunTokenNew();
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autofree char *actualCmdline = NULL;
virCommandSendBuffer *sendbuffers;
int nsendbuffers;
size_t j;
virCommandSetDryRun(dryRunToken, &buf, true, true, NULL, NULL);
cmd = qemuNbdkitProcessBuildCommand(srcPriv->nbdkitProcess);
if (virCommandRun(cmd, NULL) < 0) {
ret = -1;
continue;
}
virCommandPeekSendBuffers(cmd, &sendbuffers, &nsendbuffers);
if (!(actualCmdline = virBufferContentAndReset(&buf))) {
ret = -1;
continue;
}
if (virTestCompareToFileFull(actualCmdline, cmdfile, false) < 0)
ret = -1;
for (j = 0; j < nsendbuffers; j++) {
virCommandSendBuffer *buffer = &sendbuffers[j];
g_autofree char *pipefile = g_strdup_printf("%s.pipe.%i",
cmdfile,
buffer->fd);
if (virTestCompareToFile((const char*)buffer->buffer, pipefile) < 0)
ret = -1;
}
} else {
if (virFileExists(cmdfile)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"qemuNbdkitInitStorageSource() was not expected to fail");
ret = -1;
}
}
}
if (info->expectFail) {
if (ret == 0) {
ret = -1;
VIR_TEST_DEBUG("Error expected but there wasn't any.");
} else {
ret = 0;
}
}
return ret;
}
static int
mymain(void)
{
g_autoptr(GHashTable) capslatest = testQemuGetLatestCaps();
g_autoptr(GHashTable) capscache = virHashNew(virObjectUnref);
int ret = 0;
if (qemuTestDriverInit(&driver) < 0)
return EXIT_FAILURE;
if (testQemuInsertRealCaps(driver.qemuCapsCache, "x86_64", "latest", "",
capslatest, capscache, NULL, NULL) < 0) {
ret = -1;
goto cleanup;
}
#define DO_TEST_FULL(_name, ...) \
do { \
TestInfo info = { \
.name = _name, \
.nbdkitcaps = qemuNbdkitCapsNew(TEST_NBDKIT_PATH), \
}; \
testInfoSetPaths(&info); \
testInfoSetArgs(&info, __VA_ARGS__); \
virTestRunLog(&ret, "nbdkit " _name, testNbdkit, &info); \
testInfoClear(&info); \
} while (0)
#define DO_TEST(_name, ...) \
DO_TEST_FULL(_name, NBDKIT_ARG_CAPS, __VA_ARGS__, QEMU_NBDKIT_CAPS_LAST, NBDKIT_ARG_END)
#define DO_TEST_FAILURE(_name, ...) \
DO_TEST_FULL(_name, \
NBDKIT_ARG_EXPECT_FAIL, 1, \
NBDKIT_ARG_CAPS, __VA_ARGS__, QEMU_NBDKIT_CAPS_LAST, NBDKIT_ARG_END)
#define DO_TEST_NOCAPS(_name) \
DO_TEST_FULL(_name, NBDKIT_ARG_END)
DO_TEST("disk-cdrom-network", QEMU_NBDKIT_CAPS_PLUGIN_CURL);
DO_TEST("disk-network-http", QEMU_NBDKIT_CAPS_PLUGIN_CURL);
DO_TEST("disk-network-source-curl-nbdkit-backing", QEMU_NBDKIT_CAPS_PLUGIN_CURL);
DO_TEST("disk-network-source-curl", QEMU_NBDKIT_CAPS_PLUGIN_CURL);
DO_TEST("disk-network-ssh", QEMU_NBDKIT_CAPS_PLUGIN_SSH);
DO_TEST("disk-network-ssh-password", QEMU_NBDKIT_CAPS_PLUGIN_SSH);
DO_TEST("disk-network-ssh-key", QEMU_NBDKIT_CAPS_PLUGIN_SSH);
cleanup:
qemuTestDriverFree(&driver);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN(mymain)
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