static int
virStorageBackendSheepdogRefreshVol(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol)
{
int ret;
char *output = NULL;
virCommandPtr cmd = virCommandNewArgList(COLLIE, "vdi", "list", vol->name, "-r", NULL);
virStorageBackendSheepdogAddHostArg(cmd, pool);
virCommandSetOutputBuffer(cmd, &output);
ret = virCommandRun(cmd, NULL);
if (ret < 0)
goto cleanup;
if ((ret = virStorageBackendSheepdogParseVdiList(vol, output)) < 0)
goto cleanup;
vol->type = VIR_STORAGE_VOL_NETWORK;
VIR_FREE(vol->key);
if (virAsprintf(&vol->key, "%s/%s",
pool->def->source.name, vol->name) == -1)
goto cleanup;
VIR_FREE(vol->target.path);
ignore_value(VIR_STRDUP(vol->target.path, vol->name));
cleanup:
virCommandFree(cmd);
return ret;
}
static int
parallelsDoCmdRun(char **outbuf, const char *binary, va_list list)
{
virCommandPtr cmd = virCommandNewVAList(binary, list);
char *scmd = NULL;
int ret = -1;
if (outbuf)
virCommandSetOutputBuffer(cmd, outbuf);
scmd = virCommandToString(cmd);
if (!scmd)
goto cleanup;
if (virCommandRun(cmd, NULL))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(scmd);
virCommandFree(cmd);
if (ret)
VIR_FREE(*outbuf);
return ret;
}
int
libxlDomainGetEmulatorType(const virDomainDef *def)
{
int ret = LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN;
virCommandPtr cmd = NULL;
char *output = NULL;
if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
if (def->emulator) {
if (!virFileExists(def->emulator))
goto cleanup;
cmd = virCommandNew(def->emulator);
virCommandAddArgList(cmd, "-help", NULL);
virCommandSetOutputBuffer(cmd, &output);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (strstr(output, LIBXL_QEMU_DM_STR))
ret = LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL;
}
}
cleanup:
VIR_FREE(output);
virCommandFree(cmd);
return ret;
}
int openvzGetVEID(const char *name)
{
virCommandPtr cmd;
char *outbuf;
char *temp;
int veid;
bool ok;
cmd = virCommandNewArgList(VZLIST, name, "-ovpsid", "-H", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0) {
virCommandFree(cmd);
VIR_FREE(outbuf);
return -1;
}
virCommandFree(cmd);
ok = virStrToLong_i(outbuf, &temp, 10, &veid) == 0 && *temp == '\n';
VIR_FREE(outbuf);
if (ok && veid >= 0)
return veid;
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to parse vzlist output"));
return -1;
}
int
virBhyveProbeGrubCaps(virBhyveGrubCapsFlags *caps)
{
char *binary, *help;
virCommandPtr cmd;
int ret, exit;
ret = 0;
*caps = 0;
cmd = NULL;
help = NULL;
binary = virFindFileInPath("grub-bhyve");
if (binary == NULL)
goto out;
if (!virFileIsExecutable(binary))
goto out;
cmd = virCommandNew(binary);
virCommandAddArg(cmd, "--help");
virCommandSetOutputBuffer(cmd, &help);
if (virCommandRun(cmd, &exit) < 0) {
ret = -1;
goto out;
}
if (strstr(help, "--cons-dev") != NULL)
*caps |= BHYVE_GRUB_CAP_CONSDEV;
out:
VIR_FREE(help);
virCommandFree(cmd);
VIR_FREE(binary);
return ret;
}
static char *
virStorageBackendSCSISerial(const char *dev)
{
char *serial = NULL;
#ifdef WITH_UDEV
virCommandPtr cmd = virCommandNewArgList(
"/lib/udev/scsi_id",
"--replace-whitespace",
"--whitelisted",
"--device", dev,
NULL
);
/* Run the program and capture its output */
virCommandSetOutputBuffer(cmd, &serial);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
#endif
if (serial && STRNEQ(serial, "")) {
char *nl = strchr(serial, '\n');
if (nl)
*nl = '\0';
} else {
VIR_FREE(serial);
ignore_value(VIR_STRDUP(serial, dev));
}
#ifdef WITH_UDEV
cleanup:
virCommandFree(cmd);
#endif
return serial;
}
virSysinfoDefPtr
virSysinfoRead(void) {
char *path;
virSysinfoDefPtr ret = NULL;
char *outbuf = NULL;
virCommandPtr cmd;
path = virFindFileInPath(SYSINFO_SMBIOS_DECODER);
if (path == NULL) {
virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to find path for %s binary"),
SYSINFO_SMBIOS_DECODER);
return NULL;
}
cmd = virCommandNewArgList(path, "-q", "-t", "0,1,4,17", NULL);
VIR_FREE(path);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0) {
virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to execute command %s"),
path);
goto cleanup;
}
if (VIR_ALLOC(ret) < 0)
goto no_memory;
ret->type = VIR_SYSINFO_SMBIOS;
if (virSysinfoParseBIOS(outbuf, ret) < 0)
goto no_memory;
if (virSysinfoParseSystem(outbuf, ret) < 0)
goto no_memory;
ret->nprocessor = 0;
ret->processor = NULL;
if (virSysinfoParseProcessor(outbuf, ret) < 0)
goto no_memory;
ret->nmemory = 0;
ret->memory = NULL;
if (virSysinfoParseMemory(outbuf, ret) < 0)
goto no_memory;
cleanup:
VIR_FREE(outbuf);
virCommandFree(cmd);
return ret;
no_memory:
virReportOOMError();
virSysinfoDefFree(ret);
ret = NULL;
goto cleanup;
}
static int
vmwareUpdateVMStatus(struct vmware_driver *driver, virDomainObjPtr vm)
{
virCommandPtr cmd;
char *outbuf = NULL;
char *vmxAbsolutePath = NULL;
char *parsedVmxPath = NULL;
char *str;
char *saveptr = NULL;
bool found = false;
int oldState = virDomainObjGetState(vm, NULL);
int newState;
int ret = -1;
cmd = virCommandNewArgList(VMRUN, "-T", vmw_types[driver->type],
"list", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (virFileResolveAllLinks(((vmwareDomainPtr) vm->privateData)->vmxPath,
&vmxAbsolutePath) < 0)
goto cleanup;
for (str = outbuf ; (parsedVmxPath = strtok_r(str, "\n", &saveptr)) != NULL;
str = NULL) {
if (parsedVmxPath[0] != '/')
continue;
if (STREQ(parsedVmxPath, vmxAbsolutePath)) {
found = true;
/* If the vmx path is in the output, the domain is running or
* is paused but we have no way to detect if it is paused or not. */
if (oldState == VIR_DOMAIN_PAUSED)
newState = oldState;
else
newState = VIR_DOMAIN_RUNNING;
break;
}
}
if (!found) {
vm->def->id = -1;
newState = VIR_DOMAIN_SHUTOFF;
}
virDomainObjSetState(vm, newState, 0);
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
VIR_FREE(vmxAbsolutePath);
return ret;
}
int
vmwareExtractVersion(struct vmware_driver *driver)
{
int ret = -1;
virCommandPtr cmd = NULL;
char * outbuf = NULL;
char *bin = NULL;
char *vmwarePath = NULL;
if ((vmwarePath = mdir_name(driver->vmrun)) == NULL)
goto cleanup;
switch (driver->type) {
case VMWARE_DRIVER_PLAYER:
if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmplayer") < 0)
goto cleanup;
break;
case VMWARE_DRIVER_WORKSTATION:
if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmware") < 0)
goto cleanup;
break;
case VMWARE_DRIVER_FUSION:
if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmware-vmx") < 0)
goto cleanup;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("invalid driver type for version detection"));
goto cleanup;
}
cmd = virCommandNewArgList(bin, "-v", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
virCommandSetErrorBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (vmwareParseVersionStr(driver->type, outbuf, &driver->version) < 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
VIR_FREE(bin);
VIR_FREE(vmwarePath);
return ret;
}
static int
virStorageBackendZFSFindVols(virStoragePoolObjPtr pool,
virStorageVolDefPtr vol)
{
virStoragePoolDefPtr def = virStoragePoolObjGetDef(pool);
virCommandPtr cmd = NULL;
char *volumes_list = NULL;
char **lines = NULL;
size_t i;
/**
* $ zfs list -Hp -t volume -o name,volsize -r test
* test/vol1 5368709120
* test/vol3 1073741824
* test/vol4 1572864000
* $
*
* Arguments description:
* -t volume -- we want to see only volumes
* -o name,volsize -- limit output to name and volume size
* -r -- we want to see all the childer of our pool
*/
cmd = virCommandNewArgList(ZFS,
"list", "-Hp",
"-t", "volume", "-r",
"-o", "name,volsize,refreservation",
def->source.name,
NULL);
virCommandSetOutputBuffer(cmd, &volumes_list);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (!(lines = virStringSplit(volumes_list, "\n", 0)))
goto cleanup;
for (i = 0; lines[i]; i++) {
if (STREQ(lines[i], ""))
continue;
if (virStorageBackendZFSParseVol(pool, vol, lines[i]) < 0)
continue;
}
cleanup:
virCommandFree(cmd);
virStringListFree(lines);
VIR_FREE(volumes_list);
return 0;
}
int
qemuCapsProbeCPUModels(const char *qemu,
virBitmapPtr qemuCaps,
const char *arch,
unsigned int *count,
const char ***cpus)
{
char *output = NULL;
int ret = -1;
qemuCapsParseCPUModels parse;
virCommandPtr cmd;
if (count)
*count = 0;
if (cpus)
*cpus = NULL;
if (STREQ(arch, "i686") || STREQ(arch, "x86_64"))
parse = qemuCapsParseX86Models;
else if (STREQ(arch, "ppc64"))
parse = qemuCapsParsePPCModels;
else {
VIR_DEBUG("don't know how to parse %s CPU models", arch);
return 0;
}
cmd = virCommandNewArgList(qemu, "-cpu", "?", NULL);
if (qemuCapsGet(qemuCaps, QEMU_CAPS_NODEFCONFIG))
virCommandAddArg(cmd, "-nodefconfig");
virCommandAddEnvPassCommon(cmd);
virCommandSetOutputBuffer(cmd, &output);
virCommandClearCaps(cmd);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (parse(output, count, cpus) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(output);
virCommandFree(cmd);
return ret;
}
static int
virStorageBackendSheepdogRefreshAllVol(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool)
{
int ret = -1;
char *output = NULL;
char **lines = NULL;
char **cells = NULL;
size_t i;
virCommandPtr cmd = virCommandNewArgList(COLLIE, "vdi", "list", "-r", NULL);
virStorageBackendSheepdogAddHostArg(cmd, pool);
virCommandSetOutputBuffer(cmd, &output);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
lines = virStringSplit(output, "\n", 0);
if (lines == NULL)
goto cleanup;
for (i = 0; lines[i]; i++) {
const char *line = lines[i];
if (line == NULL)
break;
cells = virStringSplit(line, " ", 0);
if (cells != NULL && virStringListLength(cells) > 2) {
if (virStorageBackendSheepdogAddVolume(conn, pool, cells[1]) < 0)
goto cleanup;
}
virStringFreeList(cells);
cells = NULL;
}
ret = 0;
cleanup:
virCommandFree(cmd);
virStringFreeList(lines);
virStringFreeList(cells);
VIR_FREE(output);
return ret;
}
static int
virStorageBackendSheepdogRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool)
{
int ret;
char *output = NULL;
virCommandPtr cmd;
cmd = virCommandNewArgList(COLLIE, "node", "info", "-r", NULL);
virStorageBackendSheepdogAddHostArg(cmd, pool);
virCommandSetOutputBuffer(cmd, &output);
ret = virCommandRun(cmd, NULL);
if (ret == 0)
ret = virStorageBackendSheepdogParseNodeInfo(pool->def, output);
virCommandFree(cmd);
VIR_FREE(output);
return ret;
}
static int
vzDoCmdRun(char **outbuf, const char *binary, va_list list)
{
virCommandPtr cmd = virCommandNewVAList(binary, list);
int ret = -1;
if (outbuf)
virCommandSetOutputBuffer(cmd, outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
if (ret && outbuf)
VIR_FREE(*outbuf);
return ret;
}
static int
openvzGetVEStatus(virDomainObjPtr vm, int *status, int *reason)
{
virCommandPtr cmd;
char *outbuf;
char *line;
int state;
int ret = -1;
cmd = virCommandNewArgList(VZLIST, vm->def->name, "-ostatus", "-H", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if ((line = strchr(outbuf, '\n')) == NULL) {
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to parse vzlist output"));
goto cleanup;
}
*line++ = '\0';
state = virDomainObjGetState(vm, reason);
if (STREQ(outbuf, "running")) {
/* There is no way to detect whether a domain is paused or not
* with vzlist */
if (state == VIR_DOMAIN_PAUSED)
*status = state;
else
*status = VIR_DOMAIN_RUNNING;
} else {
*status = VIR_DOMAIN_SHUTOFF;
}
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
return ret;
}
char *
virNumaGetAutoPlacementAdvice(unsigned short vcpus,
unsigned long long balloon)
{
virCommandPtr cmd = NULL;
char *output = NULL;
cmd = virCommandNewArgList(NUMAD, "-w", NULL);
virCommandAddArgFormat(cmd, "%d:%llu", vcpus,
VIR_DIV_UP(balloon, 1024));
virCommandSetOutputBuffer(cmd, &output);
if (virCommandRun(cmd, NULL) < 0)
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to query numad for the "
"advisory nodeset"));
virCommandFree(cmd);
return output;
}
int
qemuCapsProbeMachineTypes(const char *binary,
virCapsGuestMachinePtr **machines,
int *nmachines)
{
char *output;
int ret = -1;
virCommandPtr cmd;
int status;
/* Make sure the binary we are about to try exec'ing exists.
* Technically we could catch the exec() failure, but that's
* in a sub-process so it's hard to feed back a useful error.
*/
if (!virFileIsExecutable(binary)) {
virReportSystemError(errno, _("Cannot find QEMU binary %s"), binary);
return -1;
}
cmd = virCommandNewArgList(binary, "-M", "?", NULL);
virCommandAddEnvPassCommon(cmd);
virCommandSetOutputBuffer(cmd, &output);
virCommandClearCaps(cmd);
/* Ignore failure from older qemu that did not understand '-M ?'. */
if (virCommandRun(cmd, &status) < 0)
goto cleanup;
if (qemuCapsParseMachineTypesStr(output, machines, nmachines) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(output);
virCommandFree(cmd);
return ret;
}
int
vmwareExtractVersion(struct vmware_driver *driver)
{
unsigned long version = 0;
char *tmp;
int ret = -1;
virCommandPtr cmd;
char * outbuf = NULL;
const char * bin = (driver->type == TYPE_PLAYER) ? "vmplayer" : "vmware";
const char * pattern = (driver->type == TYPE_PLAYER) ?
"VMware Player " : "VMware Workstation ";
cmd = virCommandNewArgList(bin, "-v", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if ((tmp = STRSKIP(outbuf, pattern)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to parse %s version"), bin);
goto cleanup;
}
if (virParseVersionString(tmp, &version, false) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("version parsing error"));
goto cleanup;
}
driver->version = version;
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
return ret;
}
static int
openvzExtractVersionInfo(const char *cmdstr, int *retversion)
{
int ret = -1;
unsigned long version;
char *help = NULL;
char *tmp;
virCommandPtr cmd = virCommandNewArgList(cmdstr, "--help", NULL);
if (retversion)
*retversion = 0;
virCommandAddEnvString(cmd, "LC_ALL=C");
virCommandSetOutputBuffer(cmd, &help);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
tmp = help;
/* expected format: vzctl version <major>.<minor>.<micro> */
if ((tmp = STRSKIP(tmp, "vzctl version ")) == NULL)
goto cleanup;
if (virParseVersionString(tmp, &version, true) < 0)
goto cleanup;
if (retversion)
*retversion = version;
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(help);
return ret;
}
/**
* virHookCall:
* @driver: the driver number (from virHookDriver enum)
* @id: an id for the object '-' if non available for example on daemon hooks
* @op: the operation on the id e.g. VIR_HOOK_QEMU_OP_START
* @sub_op: a sub_operation, currently unused
* @extra: optional string information
* @input: extra input given to the script on stdin
* @output: optional address of variable to store malloced result buffer
*
* Implement a hook call, where the external script for the driver is
* called with the given information. This is a synchronous call, we wait for
* execution completion. If @output is non-NULL, *output is guaranteed to be
* allocated after successful virHookCall, and is best-effort allocated after
* failed virHookCall; the caller is responsible for freeing *output.
*
* Returns: 0 if the execution succeeded, 1 if the script was not found or
* invalid parameters, and -1 if script returned an error
*/
int
virHookCall(int driver,
const char *id,
int op,
int sub_op,
const char *extra,
const char *input,
char **output)
{
int ret;
int exitstatus;
char *path;
virCommandPtr cmd;
const char *drvstr;
const char *opstr;
const char *subopstr;
if (output)
*output = NULL;
if ((driver < VIR_HOOK_DRIVER_DAEMON) ||
(driver >= VIR_HOOK_DRIVER_LAST))
return 1;
/*
* We cache the availability of the script to minimize impact at
* runtime if no script is defined, this is being reset on SIGHUP
*/
if ((virHooksFound == -1) ||
((driver == VIR_HOOK_DRIVER_DAEMON) &&
(op == VIR_HOOK_DAEMON_OP_RELOAD ||
op == VIR_HOOK_DAEMON_OP_SHUTDOWN)))
virHookInitialize();
if ((virHooksFound & (1 << driver)) == 0)
return 1;
drvstr = virHookDriverTypeToString(driver);
opstr = NULL;
switch (driver) {
case VIR_HOOK_DRIVER_DAEMON:
opstr = virHookDaemonOpTypeToString(op);
break;
case VIR_HOOK_DRIVER_QEMU:
opstr = virHookQemuOpTypeToString(op);
break;
case VIR_HOOK_DRIVER_LXC:
opstr = virHookLxcOpTypeToString(op);
break;
}
if (opstr == NULL) {
virHookReportError(VIR_ERR_INTERNAL_ERROR,
_("Hook for %s, failed to find operation #%d"),
drvstr, op);
return 1;
}
subopstr = virHookSubopTypeToString(sub_op);
if (subopstr == NULL)
subopstr = "-";
if (extra == NULL)
extra = "-";
ret = virBuildPath(&path, LIBVIRT_HOOK_DIR, drvstr);
if ((ret < 0) || (path == NULL)) {
virHookReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to build path for %s hook"),
drvstr);
return -1;
}
cmd = virCommandNewArgList(path, id, opstr, subopstr, extra, NULL);
virCommandAddEnvPassCommon(cmd);
if (input)
virCommandSetInputBuffer(cmd, input);
if (output)
virCommandSetOutputBuffer(cmd, output);
ret = virCommandRun(cmd, &exitstatus);
if (ret == 0 && exitstatus != 0) {
virHookReportError(VIR_ERR_HOOK_SCRIPT_FAILED,
_("Hook script %s %s failed with error code %d"),
path, drvstr, exitstatus);
ret = -1;
}
virCommandFree(cmd);
VIR_FREE(path);
return ret;
}
static int
testPrepImages(void)
{
int ret = EXIT_FAILURE;
virCommandPtr cmd = NULL;
char *buf = NULL;
bool compat = false;
qemuimg = virFindFileInPath("kvm-img");
if (!qemuimg)
qemuimg = virFindFileInPath("qemu-img");
if (!qemuimg)
goto skip;
/* Clean up from any earlier failed tests */
virFileDeleteTree(datadir);
/* See if qemu-img supports '-o compat=xxx'. If so, we force the
* use of both v2 and v3 files; if not, it is v2 only but the test
* still works. */
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2",
"-o?", "/dev/null", NULL);
virCommandSetOutputBuffer(cmd, &buf);
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (strstr(buf, "compat "))
compat = true;
VIR_FREE(buf);
if (virAsprintf(&absraw, "%s/raw", datadir) < 0 ||
virAsprintf(&absqcow2, "%s/qcow2", datadir) < 0 ||
virAsprintf(&abswrap, "%s/wrap", datadir) < 0 ||
virAsprintf(&absqed, "%s/qed", datadir) < 0 ||
virAsprintf(&absdir, "%s/dir", datadir) < 0 ||
virAsprintf(&abslink2, "%s/sub/link2", datadir) < 0)
goto cleanup;
if (virFileMakePath(datadir "/sub") < 0) {
fprintf(stderr, "unable to create directory %s\n", datadir "/sub");
goto cleanup;
}
if (virFileMakePath(datadir "/dir") < 0) {
fprintf(stderr, "unable to create directory %s\n", datadir "/dir");
goto cleanup;
}
if (!(canondir = canonicalize_file_name(absdir))) {
virReportOOMError();
goto cleanup;
}
if (chdir(datadir) < 0) {
fprintf(stderr, "unable to test relative backing chains\n");
goto cleanup;
}
if (virAsprintf(&buf, "%1024d", 0) < 0 ||
virFileWriteStr("raw", buf, 0600) < 0) {
fprintf(stderr, "unable to create raw file\n");
goto cleanup;
}
if (!(canonraw = canonicalize_file_name(absraw))) {
virReportOOMError();
goto cleanup;
}
/* Create a qcow2 wrapping relative raw; later on, we modify its
* metadata to test other configurations */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=raw,backing_fmt=raw%s",
compat ? ",compat=0.10" : "");
virCommandAddArg(cmd, "qcow2");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
/* Make sure our later uses of 'qemu-img rebase' will work */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
"-F", "raw", "-b", "raw", "qcow2", NULL);
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonqcow2 = canonicalize_file_name(absqcow2))) {
virReportOOMError();
goto cleanup;
}
/* Create a second qcow2 wrapping the first, to be sure that we
* can correctly avoid insecure probing. */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=qcow2%s",
absqcow2, compat ? ",compat=1.1" : "");
virCommandAddArg(cmd, "wrap");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonwrap = canonicalize_file_name(abswrap))) {
virReportOOMError();
goto cleanup;
}
/* Create a qed file. */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qed", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=raw",
absraw);
virCommandAddArg(cmd, "qed");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonqed = canonicalize_file_name(absqed))) {
virReportOOMError();
goto cleanup;
}
#ifdef HAVE_SYMLINK
/* Create some symlinks in a sub-directory. */
if (symlink("../qcow2", datadir "/sub/link1") < 0 ||
symlink("../wrap", datadir "/sub/link2") < 0) {
fprintf(stderr, "unable to create symlink");
goto cleanup;
}
#endif
ret = 0;
cleanup:
VIR_FREE(buf);
virCommandFree(cmd);
if (ret)
testCleanupImages();
return ret;
skip:
fputs("qemu-img is too old; skipping this test\n", stderr);
ret = EXIT_AM_SKIP;
goto cleanup;
}
/**
* virHookCall:
* @driver: the driver number (from virHookDriver enum)
* @id: an id for the object '-' if non available for example on daemon hooks
* @op: the operation on the id e.g. VIR_HOOK_QEMU_OP_START
* @sub_op: a sub_operation, currently unused
* @extra: optional string information
* @input: extra input given to the script on stdin
* @output: optional address of variable to store malloced result buffer
*
* Implement a hook call, where the external script for the driver is
* called with the given information. This is a synchronous call, we wait for
* execution completion. If @output is non-NULL, *output is guaranteed to be
* allocated after successful virHookCall, and is best-effort allocated after
* failed virHookCall; the caller is responsible for freeing *output.
*
* Returns: 0 if the execution succeeded, 1 if the script was not found or
* invalid parameters, and -1 if script returned an error
*/
int
virHookCall(int driver,
const char *id,
int op,
int sub_op,
const char *extra,
const char *input,
char **output)
{
int ret;
char *path;
virCommandPtr cmd;
const char *drvstr;
const char *opstr;
const char *subopstr;
if (output)
*output = NULL;
if ((driver < VIR_HOOK_DRIVER_DAEMON) ||
(driver >= VIR_HOOK_DRIVER_LAST))
return 1;
/*
* We cache the availability of the script to minimize impact at
* runtime if no script is defined, this is being reset on SIGHUP
*/
if ((virHooksFound == -1) ||
((driver == VIR_HOOK_DRIVER_DAEMON) &&
(op == VIR_HOOK_DAEMON_OP_RELOAD ||
op == VIR_HOOK_DAEMON_OP_SHUTDOWN)))
virHookInitialize();
if ((virHooksFound & (1 << driver)) == 0)
return 1;
drvstr = virHookDriverTypeToString(driver);
opstr = NULL;
switch (driver) {
case VIR_HOOK_DRIVER_DAEMON:
opstr = virHookDaemonOpTypeToString(op);
break;
case VIR_HOOK_DRIVER_QEMU:
opstr = virHookQemuOpTypeToString(op);
break;
case VIR_HOOK_DRIVER_LXC:
opstr = virHookLxcOpTypeToString(op);
break;
case VIR_HOOK_DRIVER_NETWORK:
opstr = virHookNetworkOpTypeToString(op);
}
if (opstr == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Hook for %s, failed to find operation #%d"),
drvstr, op);
return 1;
}
subopstr = virHookSubopTypeToString(sub_op);
if (subopstr == NULL)
subopstr = "-";
if (extra == NULL)
extra = "-";
if (virBuildPath(&path, LIBVIRT_HOOK_DIR, drvstr) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to build path for %s hook"),
drvstr);
return -1;
}
VIR_DEBUG("Calling hook opstr=%s subopstr=%s extra=%s",
opstr, subopstr, extra);
cmd = virCommandNewArgList(path, id, opstr, subopstr, extra, NULL);
virCommandAddEnvPassCommon(cmd);
if (input)
virCommandSetInputBuffer(cmd, input);
if (output)
virCommandSetOutputBuffer(cmd, output);
ret = virCommandRun(cmd, NULL);
if (ret < 0) {
/* Convert INTERNAL_ERROR into known error. */
virErrorPtr err = virGetLastError();
virReportError(VIR_ERR_HOOK_SCRIPT_FAILED, "%s",
err ? err->message : _("unknown error"));
}
virCommandFree(cmd);
VIR_FREE(path);
return ret;
}
int
vmwareLoadDomains(struct vmware_driver *driver)
{
virDomainDefPtr vmdef = NULL;
virDomainObjPtr vm = NULL;
char *vmxPath = NULL;
char *vmx = NULL;
vmwareDomainPtr pDomain;
char *directoryName = NULL;
char *fileName = NULL;
int ret = -1;
virVMXContext ctx;
char *outbuf = NULL;
char *str;
char *saveptr = NULL;
virCommandPtr cmd;
ctx.parseFileName = vmwareCopyVMXFileName;
cmd = virCommandNewArgList(VMRUN, "-T",
driver->type == TYPE_PLAYER ? "player" : "ws",
"list", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
for (str = outbuf; (vmxPath = strtok_r(str, "\n", &saveptr)) != NULL;
str = NULL) {
if (vmxPath[0] != '/')
continue;
if (virFileReadAll(vmxPath, 10000, &vmx) < 0)
goto cleanup;
if ((vmdef =
virVMXParseConfig(&ctx, driver->xmlopt, vmx)) == NULL) {
goto cleanup;
}
if (!(vm = virDomainObjListAdd(driver->domains, vmdef,
driver->xmlopt,
0, NULL)))
goto cleanup;
pDomain = vm->privateData;
if (VIR_STRDUP(pDomain->vmxPath, vmxPath) < 0)
goto cleanup;
vmwareDomainConfigDisplay(pDomain, vmdef);
if ((vm->def->id = vmwareExtractPid(vmxPath)) < 0)
goto cleanup;
/* vmrun list only reports running vms */
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNKNOWN);
vm->persistent = 1;
virObjectUnlock(vm);
vmdef = NULL;
vm = NULL;
}
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(outbuf);
virDomainDefFree(vmdef);
VIR_FREE(directoryName);
VIR_FREE(fileName);
VIR_FREE(vmx);
virObjectUnref(vm);
return ret;
}
static int
dnsmasqCapsRefreshInternal(dnsmasqCapsPtr caps, bool force)
{
int ret = -1;
struct stat sb;
virCommandPtr cmd = NULL;
char *help = NULL, *version = NULL, *complete = NULL;
if (!caps || caps->noRefresh)
return 0;
if (stat(caps->binaryPath, &sb) < 0) {
virReportSystemError(errno, _("Cannot check dnsmasq binary %s"),
caps->binaryPath);
return -1;
}
if (!force && caps->mtime == sb.st_mtime)
return 0;
caps->mtime = sb.st_mtime;
/* Make sure the binary we are about to try exec'ing exists.
* Technically we could catch the exec() failure, but that's
* in a sub-process so it's hard to feed back a useful error.
*/
if (!virFileIsExecutable(caps->binaryPath)) {
virReportSystemError(errno, _("dnsmasq binary %s is not executable"),
caps->binaryPath);
goto cleanup;
}
cmd = virCommandNewArgList(caps->binaryPath, "--version", NULL);
virCommandSetOutputBuffer(cmd, &version);
virCommandAddEnvPassCommon(cmd);
virCommandClearCaps(cmd);
if (virCommandRun(cmd, NULL) < 0) {
virReportSystemError(errno, _("failed to run '%s --version': %s"),
caps->binaryPath, version);
goto cleanup;
}
virCommandFree(cmd);
cmd = virCommandNewArgList(caps->binaryPath, "--help", NULL);
virCommandSetOutputBuffer(cmd, &help);
virCommandAddEnvPassCommon(cmd);
virCommandClearCaps(cmd);
if (virCommandRun(cmd, NULL) < 0) {
virReportSystemError(errno, _("failed to run '%s --help': %s"),
caps->binaryPath, help);
goto cleanup;
}
if (virAsprintf(&complete, "%s\n%s", version, help) < 0)
goto cleanup;
ret = dnsmasqCapsSetFromBuffer(caps, complete);
cleanup:
virCommandFree(cmd);
VIR_FREE(help);
VIR_FREE(version);
VIR_FREE(complete);
return ret;
}
int openvzLoadDomains(struct openvz_driver *driver)
{
int veid, ret;
char *status;
char uuidstr[VIR_UUID_STRING_BUFLEN];
virDomainObjPtr dom = NULL;
virDomainDefPtr def = NULL;
char *temp = NULL;
char *outbuf = NULL;
char *line;
virCommandPtr cmd = NULL;
unsigned int vcpus = 0;
if (openvzAssignUUIDs() < 0)
return -1;
cmd = virCommandNewArgList(VZLIST, "-a", "-ovpsid,status", "-H", NULL);
virCommandSetOutputBuffer(cmd, &outbuf);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
line = outbuf;
while (line[0] != '\0') {
unsigned int flags = 0;
if (virStrToLong_i(line, &status, 10, &veid) < 0 ||
*status++ != ' ' ||
(line = strchr(status, '\n')) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to parse vzlist output"));
goto cleanup;
}
*line++ = '\0';
if (!(def = virDomainDefNew()))
goto cleanup;
def->virtType = VIR_DOMAIN_VIRT_OPENVZ;
if (STREQ(status, "stopped"))
def->id = -1;
else
def->id = veid;
if (virAsprintf(&def->name, "%i", veid) < 0)
goto cleanup;
openvzGetVPSUUID(veid, uuidstr, sizeof(uuidstr));
ret = virUUIDParse(uuidstr, def->uuid);
if (ret == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("UUID in config file malformed"));
goto cleanup;
}
def->os.type = VIR_DOMAIN_OSTYPE_EXE;
if (VIR_STRDUP(def->os.init, "/sbin/init") < 0)
goto cleanup;
ret = openvzReadVPSConfigParam(veid, "CPUS", &temp);
if (ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not read config for container %d"),
veid);
goto cleanup;
} else if (ret > 0) {
vcpus = strtoI(temp);
}
if (ret == 0 || vcpus == 0)
vcpus = openvzGetNodeCPUs();
def->maxvcpus = vcpus;
def->vcpus = vcpus;
/* XXX load rest of VM config data .... */
openvzReadNetworkConf(def, veid);
openvzReadFSConf(def, veid);
openvzReadMemConf(def, veid);
virUUIDFormat(def->uuid, uuidstr);
flags = VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE;
if (STRNEQ(status, "stopped"))
flags |= VIR_DOMAIN_OBJ_LIST_ADD_LIVE;
if (!(dom = virDomainObjListAdd(driver->domains,
def,
driver->xmlopt,
flags,
NULL)))
goto cleanup;
if (STREQ(status, "stopped")) {
virDomainObjSetState(dom, VIR_DOMAIN_SHUTOFF,
VIR_DOMAIN_SHUTOFF_UNKNOWN);
dom->pid = -1;
} else {
virDomainObjSetState(dom, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNKNOWN);
dom->pid = veid;
}
/* XXX OpenVZ doesn't appear to have concept of a transient domain */
dom->persistent = 1;
virObjectUnlock(dom);
dom = NULL;
def = NULL;
}
virCommandFree(cmd);
VIR_FREE(temp);
VIR_FREE(outbuf);
return 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(temp);
VIR_FREE(outbuf);
virObjectUnref(dom);
virDomainDefFree(def);
return -1;
}
static int
virStorageBackendZFSRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED)
{
virCommandPtr cmd = NULL;
char *zpool_props = NULL;
char **lines = NULL;
char **tokens = NULL;
size_t i;
/**
* $ zpool get -Hp health,size,free,allocated test
* test health ONLINE -
* test size 199715979264 -
* test free 198899976704 -
* test allocated 816002560 -
* $
*
* Here we just provide a list of properties we want to see
*/
cmd = virCommandNewArgList(ZPOOL,
"get", "-Hp",
"health,size,free,allocated",
pool->def->source.name,
NULL);
virCommandSetOutputBuffer(cmd, &zpool_props);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
if (!(lines = virStringSplit(zpool_props, "\n", 0)))
goto cleanup;
for (i = 0; lines[i]; i++) {
size_t count;
char *prop_name;
if (STREQ(lines[i], ""))
continue;
virStringFreeList(tokens);
if (!(tokens = virStringSplitCount(lines[i], "\t", 0, &count)))
goto cleanup;
if (count != 4)
continue;
prop_name = tokens[1];
if (STREQ(prop_name, "free") || STREQ(prop_name, "size") ||
STREQ(prop_name, "allocated")) {
unsigned long long value;
if (virStrToLong_ull(tokens[2], NULL, 10, &value) < 0)
goto cleanup;
if (STREQ(prop_name, "free"))
pool->def->available = value;
else if (STREQ(prop_name, "size"))
pool->def->capacity = value;
else if (STREQ(prop_name, "allocated"))
pool->def->allocation = value;
}
}
/* Obtain a list of volumes */
if (virStorageBackendZFSFindVols(pool, NULL) < 0)
goto cleanup;
cleanup:
virCommandFree(cmd);
virStringFreeList(lines);
virStringFreeList(tokens);
VIR_FREE(zpool_props);
return 0;
}