/* Remove the key-value pair tied to @key out of @object. If @value is
* not NULL, the dropped value object is returned instead of freed.
* Returns 1 on success, 0 if no key was found, and -1 on error. */
int
virJSONValueObjectRemoveKey(virJSONValuePtr object, const char *key,
virJSONValuePtr *value)
{
size_t i;
if (value)
*value = NULL;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
for (i = 0; i < object->data.object.npairs; i++) {
if (STREQ(object->data.object.pairs[i].key, key)) {
if (value) {
*value = object->data.object.pairs[i].value;
object->data.object.pairs[i].value = NULL;
}
VIR_FREE(object->data.object.pairs[i].key);
virJSONValueFree(object->data.object.pairs[i].value);
VIR_DELETE_ELEMENT(object->data.object.pairs, i,
object->data.object.npairs);
return 1;
}
}
return 0;
}
static int
xenInotifyXendDomainsDirRemoveEntry(virConnectPtr conn, const char *fname)
{
xenUnifiedPrivatePtr priv = conn->privateData;
const char *uuidstr = fname + strlen(XEND_DOMAINS_DIR) + 1;
unsigned char uuid[VIR_UUID_BUFLEN];
size_t i;
if (virUUIDParse(uuidstr, uuid) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("parsing uuid %s"), uuidstr);
return -1;
}
/* match and remove on uuid */
for (i = 0; i < priv->configInfoList->count; i++) {
if (!memcmp(uuid, priv->configInfoList->doms[i]->uuid, VIR_UUID_BUFLEN)) {
VIR_FREE(priv->configInfoList->doms[i]->name);
VIR_FREE(priv->configInfoList->doms[i]);
VIR_DELETE_ELEMENT(priv->configInfoList->doms, i,
priv->configInfoList->count);
return 0;
}
}
return -1;
}
/**
* virObjectEventCallbackListRemoveID:
* @conn: pointer to the connection
* @cbList: the list
* @callback: the callback to remove
*
* Internal function to remove a callback from a virObjectEventCallbackListPtr
*/
static int
virObjectEventCallbackListRemoveID(virConnectPtr conn,
virObjectEventCallbackListPtr cbList,
int callbackID)
{
size_t i;
for (i = 0; i < cbList->count; i++) {
virObjectEventCallbackPtr cb = cbList->callbacks[i];
if (cb->callbackID == callbackID && cb->conn == conn) {
int ret;
ret = cb->filter ? 0 :
(virObjectEventCallbackListCount(conn, cbList, cb->klass,
cb->eventID,
cb->uuid_filter ? cb->uuid : NULL,
cb->remoteID >= 0) - 1);
if (cb->freecb)
(*cb->freecb)(cb->opaque);
virObjectUnref(cb->conn);
VIR_FREE(cb);
VIR_DELETE_ELEMENT(cbList->callbacks, i, cbList->count);
return ret;
}
}
virReportError(VIR_ERR_INVALID_ARG,
_("could not find event callback %d for deletion"),
callbackID);
return -1;
}
int parallelsStorageVolDefRemove(virStoragePoolObjPtr privpool,
virStorageVolDefPtr privvol)
{
int ret = -1;
char *xml_path = NULL;
size_t i;
privpool->def->allocation -= privvol->target.allocation;
privpool->def->available = (privpool->def->capacity -
privpool->def->allocation);
for (i = 0; i < privpool->volumes.count; i++) {
if (privpool->volumes.objs[i] == privvol) {
xml_path = parallelsAddFileExt(privvol->target.path, ".xml");
if (!xml_path)
goto cleanup;
if (unlink(xml_path)) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("Can't remove file '%s'"), xml_path);
goto cleanup;
}
virStorageVolDefFree(privvol);
VIR_DELETE_ELEMENT(privpool->volumes.objs, i, privpool->volumes.count);
break;
}
}
ret = 0;
cleanup:
VIR_FREE(xml_path);
return ret;
}
virLogHandlerPtr
virLogHandlerNewPostExecRestart(virJSONValuePtr object,
bool privileged,
virLogHandlerShutdownInhibitor inhibitor,
void *opaque)
{
virLogHandlerPtr handler;
virJSONValuePtr files;
ssize_t n;
size_t i;
if (!(handler = virLogHandlerNew(privileged,
inhibitor,
opaque)))
return NULL;
if (!(files = virJSONValueObjectGet(object, "files"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Missing files data from JSON file"));
goto error;
}
if ((n = virJSONValueArraySize(files)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Malformed files data from JSON file"));
goto error;
}
for (i = 0; i < n; i++) {
virLogHandlerLogFilePtr file;
virJSONValuePtr child = virJSONValueArrayGet(files, i);
if (!(file = virLogHandlerLogFilePostExecRestart(handler, child)))
goto error;
if (VIR_APPEND_ELEMENT_COPY(handler->files, handler->nfiles, file) < 0)
goto error;
if ((file->watch = virEventAddHandle(file->pipefd,
VIR_EVENT_HANDLE_READABLE,
virLogHandlerDomainLogFileEvent,
handler,
NULL)) < 0) {
VIR_DELETE_ELEMENT(handler->files, handler->nfiles - 1, handler->nfiles);
goto error;
}
}
return handler;
error:
virObjectUnref(handler);
return NULL;
}
static void
virLogHandlerLogFileClose(virLogHandlerPtr handler,
virLogHandlerLogFilePtr file)
{
size_t i;
for (i = 0; i < handler->nfiles; i++) {
if (handler->files[i] == file) {
VIR_DELETE_ELEMENT(handler->files, i, handler->nfiles);
virLogHandlerLogFileFree(file);
break;
}
}
}
virUSBDevicePtr
virUSBDeviceListSteal(virUSBDeviceListPtr list,
virUSBDevicePtr dev)
{
virUSBDevicePtr ret = NULL;
size_t i;
for (i = 0; i < list->count; i++) {
if (list->devs[i]->bus == dev->bus &&
list->devs[i]->dev == dev->dev) {
ret = list->devs[i];
VIR_DELETE_ELEMENT(list->devs, i, list->count);
break;
}
}
return ret;
}
/* virDomainVirtioSerialAddrSetRemoveController
*
* Removes a virtio serial controller from the address set.
*/
void
virDomainVirtioSerialAddrSetRemoveController(virDomainVirtioSerialAddrSetPtr addrs,
virDomainControllerDefPtr cont)
{
ssize_t pos;
if (cont->type != VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL)
return;
VIR_DEBUG("Removing virtio serial controller index %u "
"from the address set", cont->idx);
pos = virDomainVirtioSerialAddrFindController(addrs, cont->idx);
if (pos >= 0)
VIR_DELETE_ELEMENT(addrs->controllers, pos, addrs->ncontrollers);
}
static int
virObjectEventCallbackListPurgeMarked(virObjectEventCallbackListPtr cbList)
{
size_t n;
for (n = 0; n < cbList->count; n++) {
if (cbList->callbacks[n]->deleted) {
virFreeCallback freecb = cbList->callbacks[n]->freecb;
if (freecb)
(*freecb)(cbList->callbacks[n]->opaque);
virObjectEventCallbackFree(cbList->callbacks[n]);
VIR_DELETE_ELEMENT(cbList->callbacks, n, cbList->count);
n--;
}
}
return 0;
}
void virInterfaceRemove(virInterfaceObjListPtr interfaces,
virInterfaceObjPtr iface)
{
size_t i;
virInterfaceObjUnlock(iface);
for (i = 0; i < interfaces->count; i++) {
virInterfaceObjLock(interfaces->objs[i]);
if (interfaces->objs[i] == iface) {
virInterfaceObjUnlock(interfaces->objs[i]);
virInterfaceObjFree(interfaces->objs[i]);
VIR_DELETE_ELEMENT(interfaces->objs, i, interfaces->count);
break;
}
virInterfaceObjUnlock(interfaces->objs[i]);
}
}
static int virJSONParserHandleEndArray(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONParserStatePtr state;
VIR_DEBUG("parser=%p", parser);
if (!parser->nstate)
return 0;
state = &(parser->state[parser->nstate-1]);
if (state->key) {
VIR_FREE(state->key);
return 0;
}
VIR_DELETE_ELEMENT(parser->state, parser->nstate - 1, parser->nstate);
return 1;
}
void
virNWFilterObjListRemove(virNWFilterObjListPtr nwfilters,
virNWFilterObjPtr obj)
{
size_t i;
virNWFilterObjUnlock(obj);
for (i = 0; i < nwfilters->count; i++) {
virNWFilterObjLock(nwfilters->objs[i]);
if (nwfilters->objs[i] == obj) {
virNWFilterObjUnlock(nwfilters->objs[i]);
virNWFilterObjFree(nwfilters->objs[i]);
VIR_DELETE_ELEMENT(nwfilters->objs, i, nwfilters->count);
break;
}
virNWFilterObjUnlock(nwfilters->objs[i]);
}
}
virSCSIDevicePtr
virSCSIDeviceListSteal(virSCSIDeviceListPtr list,
virSCSIDevicePtr dev)
{
virSCSIDevicePtr ret = NULL;
size_t i;
for (i = 0; i < list->count; i++) {
if (list->devs[i]->adapter == dev->adapter &&
list->devs[i]->bus == dev->bus &&
list->devs[i]->target == dev->target &&
list->devs[i]->unit == dev->unit) {
ret = list->devs[i];
VIR_DELETE_ELEMENT(list->devs, i, list->count);
break;
}
}
return ret;
}
static int
virNWFilterVarValueDelNthValue(virNWFilterVarValuePtr val, unsigned int pos)
{
switch (val->valType) {
case NWFILTER_VALUE_TYPE_SIMPLE:
return -1;
case NWFILTER_VALUE_TYPE_ARRAY:
if (pos < val->u.array.nValues) {
VIR_FREE(val->u.array.values[pos]);
VIR_DELETE_ELEMENT(val->u.array.values, pos, val->u.array.nValues);
return 0;
}
break;
case NWFILTER_VALUE_TYPE_LAST:
break;
}
return -1;
}
void
virSCSIDeviceListDel(virSCSIDeviceListPtr list,
virSCSIDevicePtr dev,
const char *drvname,
const char *domname)
{
virSCSIDevicePtr tmp = NULL;
size_t i;
for (i = 0; i < dev->n_used_by; i++) {
if (STREQ_NULLABLE(dev->used_by[i]->drvname, drvname) &&
STREQ_NULLABLE(dev->used_by[i]->domname, domname)) {
if (dev->n_used_by > 1) {
virSCSIDeviceUsedByInfoFree(dev->used_by[i]);
VIR_DELETE_ELEMENT(dev->used_by, i, dev->n_used_by);
} else {
tmp = virSCSIDeviceListSteal(list, dev);
virSCSIDeviceFree(tmp);
}
break;
}
}
}
/*
* The caller must hold the lock on the privateData
* associated with the 'conn' parameter.
*/
int
xenStoreRemoveWatch(virConnectPtr conn, const char *path, const char *token)
{
size_t i;
xenStoreWatchListPtr list;
xenUnifiedPrivatePtr priv = conn->privateData;
if (priv->xshandle == NULL)
return -1;
list = priv->xsWatchList;
if (!list)
return -1;
for (i = 0; i < list->count; i++) {
if (STREQ(list->watches[i]->path, path) &&
STREQ(list->watches[i]->token, token)) {
if (!xs_unwatch(priv->xshandle,
list->watches[i]->path,
list->watches[i]->token))
{
VIR_DEBUG("WARNING: Could not remove watch");
/* Not fatal, continue */
}
VIR_FREE(list->watches[i]->path);
VIR_FREE(list->watches[i]->token);
VIR_FREE(list->watches[i]);
VIR_DELETE_ELEMENT(list->watches, i, list->count);
return 0;
}
}
return -1;
}
/**
* virObjectEventCallbackListRemoveID:
* @conn: pointer to the connection
* @cbList: the list
* @callback: the callback to remove
* @doFreeCb: Inhibit calling the freecb
*
* Internal function to remove a callback from a virObjectEventCallbackListPtr
*/
static int
virObjectEventCallbackListRemoveID(virConnectPtr conn,
virObjectEventCallbackListPtr cbList,
int callbackID,
bool doFreeCb)
{
size_t i;
for (i = 0; i < cbList->count; i++) {
virObjectEventCallbackPtr cb = cbList->callbacks[i];
if (cb->callbackID == callbackID && cb->conn == conn) {
int ret;
ret = cb->filter ? 0 :
(virObjectEventCallbackListCount(conn, cbList, cb->klass,
cb->eventID,
cb->key_filter ? cb->key : NULL,
cb->remoteID >= 0) - 1);
/* @doFreeCb inhibits calling @freecb from error paths in
* register functions to ensure the caller of a failed register
* function won't end up with a double free error */
if (doFreeCb && cb->freecb)
(*cb->freecb)(cb->opaque);
virObjectEventCallbackFree(cb);
VIR_DELETE_ELEMENT(cbList->callbacks, i, cbList->count);
return ret;
}
}
virReportError(VIR_ERR_INVALID_ARG,
_("could not find event callback %d for deletion"),
callbackID);
return -1;
}
int virSecurityManagerGenLabel(virSecurityManagerPtr mgr,
virDomainDefPtr vm)
{
int ret = -1;
size_t i, j;
virSecurityManagerPtr* sec_managers = NULL;
virSecurityLabelDefPtr seclabel;
bool generated = false;
if (mgr == NULL || mgr->drv == NULL)
return ret;
if ((sec_managers = virSecurityManagerGetNested(mgr)) == NULL)
return ret;
virObjectLock(mgr);
for (i = 0; i < vm->nseclabels; i++) {
if (!vm->seclabels[i]->model)
continue;
for (j = 0; sec_managers[j]; j++)
if (STREQ(vm->seclabels[i]->model, sec_managers[j]->drv->name))
break;
if (!sec_managers[j]) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unable to find security driver for label %s"),
vm->seclabels[i]->model);
goto cleanup;
}
}
for (i = 0; sec_managers[i]; i++) {
generated = false;
seclabel = virDomainDefGetSecurityLabelDef(vm, sec_managers[i]->drv->name);
if (!seclabel) {
if (!(seclabel = virSecurityLabelDefNew(sec_managers[i]->drv->name)))
goto cleanup;
generated = seclabel->implicit = true;
}
if (seclabel->type == VIR_DOMAIN_SECLABEL_DEFAULT) {
if (sec_managers[i]->defaultConfined) {
seclabel->type = VIR_DOMAIN_SECLABEL_DYNAMIC;
} else {
seclabel->type = VIR_DOMAIN_SECLABEL_NONE;
seclabel->norelabel = true;
}
}
if (seclabel->type == VIR_DOMAIN_SECLABEL_NONE) {
if (sec_managers[i]->requireConfined) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Unconfined guests are not allowed on this host"));
goto cleanup;
} else if (vm->nseclabels && generated) {
VIR_DEBUG("Skipping auto generated seclabel of type none");
virSecurityLabelDefFree(seclabel);
seclabel = NULL;
continue;
}
}
if (!sec_managers[i]->drv->domainGenSecurityLabel) {
virReportUnsupportedError();
virSecurityLabelDefFree(seclabel);
seclabel = NULL;
} else {
/* The seclabel must be added to @vm prior calling domainGenSecurityLabel
* which may require seclabel to be presented already */
if (generated &&
VIR_APPEND_ELEMENT(vm->seclabels, vm->nseclabels, seclabel) < 0)
goto cleanup;
if (sec_managers[i]->drv->domainGenSecurityLabel(sec_managers[i], vm) < 0) {
if (VIR_DELETE_ELEMENT(vm->seclabels,
vm->nseclabels -1, vm->nseclabels) < 0)
vm->nseclabels--;
goto cleanup;
}
seclabel = NULL;
}
}
ret = 0;
cleanup:
virObjectUnlock(mgr);
if (generated)
virSecurityLabelDefFree(seclabel);
VIR_FREE(sec_managers);
return ret;
}
/**
* virLXCProcessStart:
* @conn: pointer to connection
* @driver: pointer to driver structure
* @vm: pointer to virtual machine structure
* @autoDestroy: mark the domain for auto destruction
* @reason: reason for switching vm to running state
*
* Starts a vm
*
* Returns 0 on success or -1 in case of error
*/
int virLXCProcessStart(virConnectPtr conn,
virLXCDriverPtr driver,
virDomainObjPtr vm,
unsigned int nfiles, int *files,
bool autoDestroy,
virDomainRunningReason reason)
{
int rc = -1, r;
size_t nttyFDs = 0;
int *ttyFDs = NULL;
size_t i;
char *logfile = NULL;
int logfd = -1;
size_t nveths = 0;
char **veths = NULL;
int handshakefds[2] = { -1, -1 };
off_t pos = -1;
char ebuf[1024];
char *timestamp;
virCommandPtr cmd = NULL;
virLXCDomainObjPrivatePtr priv = vm->privateData;
virCapsPtr caps = NULL;
virErrorPtr err = NULL;
virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
virCgroupPtr selfcgroup;
int status;
char *pidfile = NULL;
bool clearSeclabel = false;
bool need_stop = false;
if (virCgroupNewSelf(&selfcgroup) < 0)
return -1;
if (!virCgroupHasController(selfcgroup,
VIR_CGROUP_CONTROLLER_CPUACCT)) {
virCgroupFree(&selfcgroup);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to find 'cpuacct' cgroups controller mount"));
return -1;
}
if (!virCgroupHasController(selfcgroup,
VIR_CGROUP_CONTROLLER_DEVICES)) {
virCgroupFree(&selfcgroup);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to find 'devices' cgroups controller mount"));
return -1;
}
if (!virCgroupHasController(selfcgroup,
VIR_CGROUP_CONTROLLER_MEMORY)) {
virCgroupFree(&selfcgroup);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to find 'memory' cgroups controller mount"));
return -1;
}
virCgroupFree(&selfcgroup);
if (vm->def->nconsoles == 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("At least one PTY console is required"));
return -1;
}
for (i = 0; i < vm->def->nconsoles; i++) {
if (vm->def->consoles[i]->source.type != VIR_DOMAIN_CHR_TYPE_PTY) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only PTY console types are supported"));
return -1;
}
}
if (virFileMakePath(cfg->logDir) < 0) {
virReportSystemError(errno,
_("Cannot create log directory '%s'"),
cfg->logDir);
return -1;
}
if (!vm->def->resource) {
virDomainResourceDefPtr res;
if (VIR_ALLOC(res) < 0)
goto cleanup;
if (VIR_STRDUP(res->partition, "/machine") < 0) {
VIR_FREE(res);
goto cleanup;
}
vm->def->resource = res;
}
if (virAsprintf(&logfile, "%s/%s.log",
cfg->logDir, vm->def->name) < 0)
goto cleanup;
if (!(pidfile = virPidFileBuildPath(cfg->stateDir, vm->def->name)))
goto cleanup;
if (!(caps = virLXCDriverGetCapabilities(driver, false)))
goto cleanup;
/* Do this up front, so any part of the startup process can add
* runtime state to vm->def that won't be persisted. This let's us
* report implicit runtime defaults in the XML, like vnc listen/socket
*/
VIR_DEBUG("Setting current domain def as transient");
if (virDomainObjSetDefTransient(caps, driver->xmlopt, vm, true) < 0)
goto cleanup;
/* Run an early hook to set-up missing devices */
if (virHookPresent(VIR_HOOK_DRIVER_LXC)) {
char *xml = virDomainDefFormat(vm->def, 0);
int hookret;
hookret = virHookCall(VIR_HOOK_DRIVER_LXC, vm->def->name,
VIR_HOOK_LXC_OP_PREPARE, VIR_HOOK_SUBOP_BEGIN,
NULL, xml, NULL);
VIR_FREE(xml);
/*
* If the script raised an error abort the launch
*/
if (hookret < 0)
goto cleanup;
}
if (virLXCProcessEnsureRootFS(vm) < 0)
goto cleanup;
/* Must be run before security labelling */
VIR_DEBUG("Preparing host devices");
if (virLXCPrepareHostDevices(driver, vm->def) < 0)
goto cleanup;
/* Here we open all the PTYs we need on the host OS side.
* The LXC controller will open the guest OS side PTYs
* and forward I/O between them.
*/
nttyFDs = vm->def->nconsoles;
if (VIR_ALLOC_N(ttyFDs, nttyFDs) < 0)
goto cleanup;
for (i = 0; i < vm->def->nconsoles; i++)
ttyFDs[i] = -1;
/* If you are using a SecurityDriver with dynamic labelling,
then generate a security label for isolation */
VIR_DEBUG("Generating domain security label (if required)");
clearSeclabel = vm->def->nseclabels == 0 ||
vm->def->seclabels[0]->type == VIR_DOMAIN_SECLABEL_DEFAULT;
if (vm->def->nseclabels &&
vm->def->seclabels[0]->type == VIR_DOMAIN_SECLABEL_DEFAULT)
vm->def->seclabels[0]->type = VIR_DOMAIN_SECLABEL_NONE;
if (virSecurityManagerCheckAllLabel(driver->securityManager, vm->def) < 0)
goto cleanup;
if (virSecurityManagerGenLabel(driver->securityManager, vm->def) < 0) {
virDomainAuditSecurityLabel(vm, false);
goto cleanup;
}
virDomainAuditSecurityLabel(vm, true);
VIR_DEBUG("Setting domain security labels");
if (virSecurityManagerSetAllLabel(driver->securityManager,
vm->def, NULL) < 0)
goto cleanup;
VIR_DEBUG("Setting up consoles");
for (i = 0; i < vm->def->nconsoles; i++) {
char *ttyPath;
if (virFileOpenTty(&ttyFDs[i], &ttyPath, 1) < 0) {
virReportSystemError(errno, "%s",
_("Failed to allocate tty"));
goto cleanup;
}
VIR_FREE(vm->def->consoles[i]->source.data.file.path);
vm->def->consoles[i]->source.data.file.path = ttyPath;
VIR_FREE(vm->def->consoles[i]->info.alias);
if (virAsprintf(&vm->def->consoles[i]->info.alias, "console%zu", i) < 0)
goto cleanup;
}
VIR_DEBUG("Setting up Interfaces");
if (virLXCProcessSetupInterfaces(conn, vm->def, &nveths, &veths) < 0)
goto cleanup;
VIR_DEBUG("Preparing to launch");
if ((logfd = open(logfile, O_WRONLY | O_APPEND | O_CREAT,
S_IRUSR|S_IWUSR)) < 0) {
virReportSystemError(errno,
_("Failed to open '%s'"),
logfile);
goto cleanup;
}
if (pipe(handshakefds) < 0) {
virReportSystemError(errno, "%s",
_("Unable to create pipe"));
goto cleanup;
}
if (!(cmd = virLXCProcessBuildControllerCmd(driver,
vm,
nveths, veths,
ttyFDs, nttyFDs,
files, nfiles,
handshakefds[1],
logfd,
pidfile)))
goto cleanup;
/* now that we know it is about to start call the hook if present */
if (virHookPresent(VIR_HOOK_DRIVER_LXC)) {
char *xml = virDomainDefFormat(vm->def, 0);
int hookret;
hookret = virHookCall(VIR_HOOK_DRIVER_LXC, vm->def->name,
VIR_HOOK_LXC_OP_START, VIR_HOOK_SUBOP_BEGIN,
NULL, xml, NULL);
VIR_FREE(xml);
/*
* If the script raised an error abort the launch
*/
if (hookret < 0)
goto cleanup;
}
/* Log timestamp */
if ((timestamp = virTimeStringNow()) == NULL)
goto cleanup;
if (safewrite(logfd, timestamp, strlen(timestamp)) < 0 ||
safewrite(logfd, START_POSTFIX, strlen(START_POSTFIX)) < 0) {
VIR_WARN("Unable to write timestamp to logfile: %s",
virStrerror(errno, ebuf, sizeof(ebuf)));
}
VIR_FREE(timestamp);
/* Log generated command line */
virCommandWriteArgLog(cmd, logfd);
if ((pos = lseek(logfd, 0, SEEK_END)) < 0)
VIR_WARN("Unable to seek to end of logfile: %s",
virStrerror(errno, ebuf, sizeof(ebuf)));
VIR_DEBUG("Launching container");
virCommandRawStatus(cmd);
if (virCommandRun(cmd, &status) < 0)
goto cleanup;
if (status != 0) {
if (virLXCProcessReadLogOutput(vm, logfile, pos, ebuf,
sizeof(ebuf)) <= 0) {
if (WIFEXITED(status))
snprintf(ebuf, sizeof(ebuf), _("unexpected exit status %d"),
WEXITSTATUS(status));
else
snprintf(ebuf, sizeof(ebuf), "%s", _("terminated abnormally"));
}
virReportError(VIR_ERR_INTERNAL_ERROR,
_("guest failed to start: %s"), ebuf);
goto cleanup;
}
/* It has started running, so get its pid */
if ((r = virPidFileReadPath(pidfile, &vm->pid)) < 0) {
if (virLXCProcessReadLogOutput(vm, logfile, pos, ebuf, sizeof(ebuf)) > 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("guest failed to start: %s"), ebuf);
else
virReportSystemError(-r,
_("Failed to read pid file %s"),
pidfile);
goto cleanup;
}
need_stop = true;
priv->stopReason = VIR_DOMAIN_EVENT_STOPPED_FAILED;
priv->wantReboot = false;
vm->def->id = vm->pid;
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, reason);
priv->doneStopEvent = false;
if (VIR_CLOSE(handshakefds[1]) < 0) {
virReportSystemError(errno, "%s", _("could not close handshake fd"));
goto cleanup;
}
if (virCommandHandshakeWait(cmd) < 0)
goto cleanup;
/* Write domain status to disk for the controller to
* read when it starts */
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
goto cleanup;
/* Allow the child to exec the controller */
if (virCommandHandshakeNotify(cmd) < 0)
goto cleanup;
if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
driver->inhibitCallback(true, driver->inhibitOpaque);
if (lxcContainerWaitForContinue(handshakefds[0]) < 0) {
char out[1024];
if (!(virLXCProcessReadLogOutput(vm, logfile, pos, out, 1024) < 0)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("guest failed to start: %s"), out);
}
goto cleanup;
}
/* We know the cgroup must exist by this synchronization
* point so lets detect that first, since it gives us a
* more reliable way to kill everything off if something
* goes wrong from here onwards ... */
if (virCgroupNewDetectMachine(vm->def->name, "lxc", vm->pid,
vm->def->resource ?
vm->def->resource->partition :
NULL,
-1, &priv->cgroup) < 0)
goto cleanup;
if (!priv->cgroup) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("No valid cgroup for machine %s"),
vm->def->name);
goto cleanup;
}
/* And we can get the first monitor connection now too */
if (!(priv->monitor = virLXCProcessConnectMonitor(driver, vm))) {
/* Intentionally overwrite the real monitor error message,
* since a better one is almost always found in the logs
*/
if (virLXCProcessReadLogOutput(vm, logfile, pos, ebuf, sizeof(ebuf)) > 0) {
virResetLastError();
virReportError(VIR_ERR_INTERNAL_ERROR,
_("guest failed to start: %s"), ebuf);
}
goto cleanup;
}
if (autoDestroy &&
virCloseCallbacksSet(driver->closeCallbacks, vm,
conn, lxcProcessAutoDestroy) < 0)
goto cleanup;
if (virDomainObjSetDefTransient(caps, driver->xmlopt,
vm, false) < 0)
goto cleanup;
/* We don't need the temporary NIC names anymore, clear them */
virLXCProcessCleanInterfaces(vm->def);
/* finally we can call the 'started' hook script if any */
if (virHookPresent(VIR_HOOK_DRIVER_LXC)) {
char *xml = virDomainDefFormat(vm->def, 0);
int hookret;
hookret = virHookCall(VIR_HOOK_DRIVER_LXC, vm->def->name,
VIR_HOOK_LXC_OP_STARTED, VIR_HOOK_SUBOP_BEGIN,
NULL, xml, NULL);
VIR_FREE(xml);
/*
* If the script raised an error abort the launch
*/
if (hookret < 0)
goto cleanup;
}
rc = 0;
cleanup:
if (VIR_CLOSE(logfd) < 0) {
virReportSystemError(errno, "%s", _("could not close logfile"));
rc = -1;
}
if (rc != 0) {
err = virSaveLastError();
if (need_stop) {
virLXCProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_FAILED);
} else {
virSecurityManagerRestoreAllLabel(driver->securityManager,
vm->def, false);
virSecurityManagerReleaseLabel(driver->securityManager, vm->def);
/* Clear out dynamically assigned labels */
if (vm->def->nseclabels &&
(vm->def->seclabels[0]->type == VIR_DOMAIN_SECLABEL_DYNAMIC ||
clearSeclabel)) {
VIR_FREE(vm->def->seclabels[0]->model);
VIR_FREE(vm->def->seclabels[0]->label);
VIR_FREE(vm->def->seclabels[0]->imagelabel);
VIR_DELETE_ELEMENT(vm->def->seclabels, 0, vm->def->nseclabels);
}
virLXCProcessCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_FAILED);
}
}
virCommandFree(cmd);
for (i = 0; i < nveths; i++)
VIR_FREE(veths[i]);
for (i = 0; i < nttyFDs; i++)
VIR_FORCE_CLOSE(ttyFDs[i]);
VIR_FREE(ttyFDs);
VIR_FORCE_CLOSE(handshakefds[0]);
VIR_FORCE_CLOSE(handshakefds[1]);
VIR_FREE(pidfile);
VIR_FREE(logfile);
virObjectUnref(cfg);
virObjectUnref(caps);
if (err) {
virSetError(err);
virFreeError(err);
}
return rc;
}
