static int __domain_op_simple(char * name, int op)
{
if (g_conn == NULL)
return -1;
virDomainPtr domain;
domain = virDomainLookupByName(g_conn, name);
if (domain == NULL) {
logerror(_("%s: connect domain by name(%s) error. "
"domain may not exist\n"),
__func__, name);
return -1;
}
int ret;
if (op == __DOMAIN_OP_STOP)
ret = virDomainShutdown(domain);
else if (op == __DOMAIN_OP_STOP_FORCE)
ret = virDomainDestroy(domain);
else if (op == __DOMAIN_OP_REBOOT)
ret = virDomainReboot(domain, 0);
else
ret = -1;
virDomainFree(domain);
return ret;
}
bool
VirshType::killVMFast(const char* vmname, virConnectPtr libvirt_con)
{
vmprintf(D_FULLDEBUG, "Inside VirshType::killVMFast\n");
if( !vmname || (vmname[0] == '\0') ) {
return false;
}
priv_state priv = set_root_priv();
virDomainPtr dom = virDomainLookupByName(libvirt_con, vmname);
set_priv(priv);
if(dom == NULL)
{
virErrorPtr err = virConnGetLastError(libvirt_con);
if (err && err->code != VIR_ERR_NO_DOMAIN)
{
vmprintf(D_ALWAYS, "Error finding domain %s: %s\n", vmname, (err ? err->message : "No reason found"));
return false;
}
else
{
return true;
}
}
priv = set_root_priv();
bool ret = (virDomainDestroy(dom) == 0);
virDomainFree(dom);
set_priv(priv);
return ret;
}
static int DeleteVirt(virConnectPtr vc, char *uri, Attributes a, Promise *pp)
{
virDomainPtr dom;
int ret = true;
dom = virDomainLookupByName(vc, pp->promiser);
if (dom)
{
if (virDomainDestroy(dom) == -1)
{
cfPS(cf_verbose, CF_FAIL, "", pp, a, " !! Failed to delete virtual domain \"%s\"\n", pp->promiser);
ret = false;
}
else
{
cfPS(cf_verbose, CF_CHG, "", pp, a, " -> Deleted virtual domain \"%s\"\n", pp->promiser);
}
virDomainFree(dom);
}
else
{
cfPS(cf_verbose, CF_NOP, "", pp, a, " -> No such virtual domain called \"%s\" - promise kept\n", pp->promiser);
}
return ret;
}
int main(int argc, char *argv[])
{
virConnectPtr conn;
int i;
int numDomains;
int *activeDomains;
virDomainPtr dom;
conn = virConnectOpen("qemu:///system");
if (conn == NULL) {
fprintf(stderr, "Failed to open connection to qemu:///system\n");
}
numDomains = virConnectNumOfDomains(conn);
activeDomains = malloc(sizeof(int) * numDomains);
numDomains = virConnectListDomains(conn, activeDomains, numDomains);
printf("Active domain IDs:\n");
for (i = 0 ; i < numDomains ; i++) {
printf(" %d\n", activeDomains[i]);
}
printf("Terminating Domain\n");
free(activeDomains);
int domainName = "sudip";
dom = virDomainLookupByName(conn,domainName);
virDomainDestroy(dom);
virDomainFree(dom);
printf("Domain sudip terminated successfully\n");
if (conn != NULL)
virConnectClose(conn);
return 0;
}
static PromiseResult DeleteVirt(EvalContext *ctx, virConnectPtr vc, Attributes a, const Promise *pp)
{
virDomainPtr dom;
dom = virDomainLookupByName(vc, pp->promiser);
PromiseResult result = PROMISE_RESULT_NOOP;
if (dom)
{
if (virDomainDestroy(dom) == -1)
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a, "Failed to delete virtual domain '%s'", pp->promiser);
result = PromiseResultUpdate(result, PROMISE_RESULT_FAIL);
}
else
{
cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_CHANGE, pp, a, "Deleted virtual domain '%s'", pp->promiser);
result = PromiseResultUpdate(result, PROMISE_RESULT_CHANGE);
}
virDomainFree(dom);
}
else
{
cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, pp, a, "No such virtual domain called '%s' - promise kept", pp->promiser);
}
return result;
}
static int
libvirt_off(const char *vm_name, const char *src, uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp = NULL;
virDomainInfo vdi;
virDomainPtr (*virt_lookup_fn)(virConnectPtr, const char *);
int ret = -1;
int i;
dbg_printf(5, "ENTER %s %s %u\n", __FUNCTION__, vm_name, seqno);
VALIDATE(info);
if (is_uuid(vm_name))
virt_lookup_fn = virDomainLookupByUUIDString;
else
virt_lookup_fn = virDomainLookupByName;
for (i = 0 ; i < info->vp_count ; i++) {
vdp = virt_lookup_fn(info->vp[i], vm_name);
if (vdp)
break;
}
if (!vdp) {
dbg_printf(2, "[libvirt:OFF] Domain %s does not exist\n", vm_name);
return 1;
}
if (virDomainGetInfo(vdp, &vdi) == 0 && vdi.state == VIR_DOMAIN_SHUTOFF) {
dbg_printf(2, "[libvirt:OFF] Nothing to do - "
"domain %s is already off\n",
vm_name);
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Destroying domain %s\n", vm_name);
dbg_printf(2, "[libvirt:OFF] Calling virDomainDestroy for %s\n", vm_name);
ret = virDomainDestroy(vdp);
virDomainFree(vdp);
if (ret < 0) {
syslog(LOG_NOTICE, "Failed to destroy domain %s: %d\n", vm_name, ret);
dbg_printf(2, "[libvirt:OFF] Failed to destroy domain: %s %d\n",
vm_name, ret);
return 1;
}
if (ret) {
syslog(LOG_NOTICE, "Domain %s still exists; fencing failed\n", vm_name);
dbg_printf(2, "[libvirt:OFF] Domain %s still exists; fencing failed\n",
vm_name);
return 1;
}
dbg_printf(2, "[libvirt:OFF] Success for %s\n", vm_name);
return 0;
}
static int DeleteVirt(EvalContext *ctx, virConnectPtr vc, Attributes a, Promise *pp)
{
virDomainPtr dom;
int ret = true;
dom = virDomainLookupByName(vc, pp->promiser);
if (dom)
{
if (virDomainDestroy(dom) == -1)
{
cfPS(ctx, OUTPUT_LEVEL_VERBOSE, PROMISE_RESULT_FAIL, "", pp, a, " !! Failed to delete virtual domain \"%s\"\n", pp->promiser);
ret = false;
}
else
{
cfPS(ctx, OUTPUT_LEVEL_VERBOSE, PROMISE_RESULT_CHANGE, "", pp, a, " -> Deleted virtual domain \"%s\"\n", pp->promiser);
}
virDomainFree(dom);
}
else
{
cfPS(ctx, OUTPUT_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, "", pp, a, " -> No such virtual domain called \"%s\" - promise kept\n", pp->promiser);
}
return ret;
}
static int
doTerminateInstance( struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
int *shutdownState,
int *previousState)
{
ncInstance *instance, *vninstance;
virConnectPtr *conn;
int err;
sem_p (inst_sem);
instance = find_instance(&global_instances, instanceId);
sem_v (inst_sem);
if (instance == NULL)
return NOT_FOUND;
/* try stopping the KVM domain */
conn = check_hypervisor_conn();
if (conn) {
sem_p(hyp_sem);
virDomainPtr dom = virDomainLookupByName(*conn, instanceId);
sem_v(hyp_sem);
if (dom) {
/* also protect 'destroy' commands, just in case */
sem_p (hyp_sem);
err = virDomainDestroy (dom);
sem_v (hyp_sem);
if (err==0) {
logprintfl (EUCAINFO, "destroyed domain for instance %s\n", instanceId);
}
sem_p(hyp_sem);
virDomainFree(dom); /* necessary? */
sem_v(hyp_sem);
} else {
if (instance->state != BOOTING)
logprintfl (EUCAWARN, "warning: domain %s to be terminated not running on hypervisor\n", instanceId);
}
}
/* change the state and let the monitoring_thread clean up state */
sem_p (inst_sem);
if (instance->state==BOOTING) {
change_state (instance, CANCELED);
} else {
change_state (instance, SHUTOFF);
}
sem_v (inst_sem);
*previousState = instance->stateCode;
*shutdownState = instance->stateCode;
return OK;
}
static int
libvirt_off(const char *vm_name, const char *src,
uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp;
virDomainInfo vdi;
int ret = -1;
dbg_printf(5, "%s %s\n", __FUNCTION__, vm_name);
VALIDATE(info);
if (is_uuid(vm_name)) {
vdp = virDomainLookupByUUIDString(info->vp,
(const char *)vm_name);
} else {
vdp = virDomainLookupByName(info->vp, vm_name);
}
if (!vdp) {
dbg_printf(2, "Nothing to do - domain does not exist\n");
return 1;
}
if (((virDomainGetInfo(vdp, &vdi) == 0) &&
(vdi.state == VIR_DOMAIN_SHUTOFF))) {
dbg_printf(2, "Nothing to do - domain is off\n");
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Destroying domain %s\n", vm_name);
dbg_printf(2, "[OFF] Calling virDomainDestroy\n");
ret = virDomainDestroy(vdp);
if (ret < 0) {
syslog(LOG_NOTICE, "Failed to destroy domain: %d\n", ret);
printf("virDomainDestroy() failed: %d\n", ret);
return 1;
}
if (ret) {
syslog(LOG_NOTICE,
"Domain %s still exists; fencing failed\n",
vm_name);
printf("Domain %s still exists; fencing failed\n", vm_name);
return 1;
}
return 0;
}
std::string VM_Controller::close_vm(int domain_id){
Json::Value j(Json::objectValue);
j["status"] = "ok";
virDomainPtr dom = virDomainLookupByID(_conn, domain_id);
if(dom == NULL){
j["status"] = "no such domain";
return j.toStyledString();
}
if(virDomainDestroy(dom) < 0){
j["status"] = "could not shutdown domain";
return j.toStyledString();
}
return j.toStyledString();
}
static int
testDomainCreateXMLNew(const void *data)
{
const objecteventTest *test = data;
lifecycleEventCounter counter;
int eventId = VIR_DOMAIN_EVENT_ID_LIFECYCLE;
virDomainPtr dom = NULL;
int id;
int ret = -1;
lifecycleEventCounter_reset(&counter);
id = virConnectDomainEventRegisterAny(test->conn, NULL, eventId,
VIR_DOMAIN_EVENT_CALLBACK(&domainLifecycleCb),
&counter, NULL);
if (id < 0)
goto cleanup;
dom = virDomainCreateXML(test->conn, domainDef, 0);
if (dom == NULL || virEventRunDefaultImpl() < 0)
goto cleanup;
if (counter.startEvents != 1 || counter.unexpectedEvents > 0)
goto cleanup;
if (virConnectDomainEventDeregisterAny(test->conn, id) != 0)
goto cleanup;
id = -1;
ret = 0;
cleanup:
if (id >= 0)
virConnectDomainEventDeregisterAny(test->conn, id);
if (dom) {
virDomainDestroy(dom);
virDomainFree(dom);
}
return ret;
}
static int
testDomainCreateXMLOld(const void *data)
{
const objecteventTest *test = data;
lifecycleEventCounter counter;
virDomainPtr dom = NULL;
int ret = -1;
bool registered = false;
lifecycleEventCounter_reset(&counter);
if (virConnectDomainEventRegister(test->conn,
domainLifecycleCb,
&counter, NULL) != 0)
goto cleanup;
registered = true;
dom = virDomainCreateXML(test->conn, domainDef, 0);
if (dom == NULL || virEventRunDefaultImpl() < 0)
goto cleanup;
if (counter.startEvents != 1 || counter.unexpectedEvents > 0)
goto cleanup;
if (virConnectDomainEventDeregister(test->conn, domainLifecycleCb) != 0)
goto cleanup;
registered = false;
ret = 0;
cleanup:
if (registered)
virConnectDomainEventDeregister(test->conn, domainLifecycleCb);
if (dom) {
virDomainDestroy(dom);
virDomainFree(dom);
}
return ret;
}
static int
libvirt_reboot(const char *vm_name, const char *src, uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp = NULL, nvdp;
virDomainInfo vdi;
char *domain_desc;
virConnectPtr vcp = NULL;
virDomainPtr (*virt_lookup_fn)(virConnectPtr, const char *);
int ret;
int i;
dbg_printf(5, "ENTER %s %s %u\n", __FUNCTION__, vm_name, seqno);
VALIDATE(info);
if (is_uuid(vm_name))
virt_lookup_fn = virDomainLookupByUUIDString;
else
virt_lookup_fn = virDomainLookupByName;
for (i = 0 ; i < info->vp_count ; i++) {
vdp = virt_lookup_fn(info->vp[i], vm_name);
if (vdp) {
vcp = info->vp[i];
break;
}
}
if (!vdp || !vcp) {
dbg_printf(2,
"[libvirt:REBOOT] Nothing to do - domain %s does not exist\n",
vm_name);
return 1;
}
if (virDomainGetInfo(vdp, &vdi) == 0 && vdi.state == VIR_DOMAIN_SHUTOFF) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to do - domain %s is off\n",
vm_name);
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Rebooting domain %s\n", vm_name);
dbg_printf(5, "[libvirt:REBOOT] Rebooting domain %s...\n", vm_name);
domain_desc = virDomainGetXMLDesc(vdp, 0);
if (!domain_desc) {
dbg_printf(5, "[libvirt:REBOOT] Failed getting domain description "
"from libvirt for %s...\n", vm_name);
}
dbg_printf(2, "[libvirt:REBOOT] Calling virDomainDestroy(%p) for %s\n",
vdp, vm_name);
ret = virDomainDestroy(vdp);
if (ret < 0) {
dbg_printf(2,
"[libvirt:REBOOT] virDomainDestroy() failed for %s: %d/%d\n",
vm_name, ret, errno);
if (domain_desc)
free(domain_desc);
virDomainFree(vdp);
return 1;
}
ret = wait_domain(vm_name, vcp, 15);
if (ret) {
syslog(LOG_NOTICE, "Domain %s still exists; fencing failed\n", vm_name);
dbg_printf(2,
"[libvirt:REBOOT] Domain %s still exists; fencing failed\n",
vm_name);
if (domain_desc)
free(domain_desc);
virDomainFree(vdp);
return 1;
}
if (!domain_desc)
return 0;
/* 'on' is not a failure */
ret = 0;
dbg_printf(3, "[[ XML Domain Info ]]\n");
dbg_printf(3, "%s\n[[ XML END ]]\n", domain_desc);
dbg_printf(2, "[libvirt:REBOOT] Calling virDomainCreateLinux() for %s\n",
vm_name);
nvdp = virDomainCreateLinux(vcp, domain_desc, 0);
if (nvdp == NULL) {
/* More recent versions of libvirt or perhaps the
* KVM back-end do not let you create a domain from
* XML if there is already a defined domain description
* with the same name that it knows about. You must
* then call virDomainCreate() */
dbg_printf(2,
"[libvirt:REBOOT] virDomainCreateLinux() failed for %s; "
"Trying virDomainCreate()\n",
vm_name);
if (virDomainCreate(vdp) < 0) {
syslog(LOG_NOTICE, "Could not restart %s\n", vm_name);
dbg_printf(1, "[libvirt:REBOOT] Failed to recreate guest %s!\n",
vm_name);
}
}
free(domain_desc);
virDomainFree(vdp);
return ret;
}
int startDomain(char *xml, char *uri)
{
int id, tries, res = 0;
char *port = NULL;
char *xmldesc = NULL;
virDomainPtr dp = NULL;
if (cp == NULL) {
cp = libvirtConnect(uri);
if (cp == NULL) {
DPRINTF("Connection to %s failed\n", uri);
return -EIO;
}
}
DPRINTF("Starting domain\n");
dp = virDomainCreateXML(cp, xml, 0);
if (dp == NULL) {
DPRINTF("virDomainCreateXML call failed\n");
DPRINTF("XML File data:\n%s\n", xml);
return -EINVAL;
}
DPRINTF("Domain started\n");
tries = 0;
xmldesc = virDomainGetXMLDesc(dp, 0);
if (xmldesc == NULL) {
if (tries > 5) {
DPRINTF("Cannot get domain XML description\n");
virDomainFree(dp);
return -EIO;
}
sleep(1);
tries++;
}
port = xml_query(xmldesc, "//domain/devices/graphics/@port");
free(xmldesc);
if (port == NULL) {
DPRINTF("Port lookup failed, node not accessible\n");
virDomainFree(dp);
return -ENOENT;
}
DPRINTF("Graphics port number: %s\n", port);
id = virDomainGetID(dp);
DPRINTF("Domain created with ID %d\n", id);
#ifdef USE_HACK
if (startVNCViewer(NULL, NULL, 1) != VNC_STATUS_UNSUPPORTED) {
char path[1024] = { 0 };
char buf[2048] = { 0 };
char cmd[4096] = { 0 };
snprintf(path, sizeof(path), "/proc/%d/exe", getpid());
readlink(path, buf, sizeof(buf));
snprintf(cmd, sizeof(cmd), "%s -v localhost:%s -f -l console 2> /dev/null", buf, port);
DPRINTF("About to run '%s'\n", cmd);
res = WEXITSTATUS(system(cmd));
}
else
res = VNC_STATUS_NO_CONNECTION;
#else
res = startVNCViewer("localhost", port, 1);
#endif
if (((virDomainIsActive(dp)) && (!domainIsOff))
|| (res != VNC_STATUS_SHUTDOWN)) {
DPRINTF("Domain is active, destroying...\n");
virDomainDestroy(dp);
}
DPRINTF("Domain %d done.\n", id);
virDomainFree(dp);
DPRINTF("Returning with %d\n", lastErrorCode);
return lastErrorCode;
}
//!
//! Defines the thread that does the actual reboot of an instance.
//!
//! @param[in] arg a transparent pointer to the argument passed to this thread handler
//!
//! @return Always return NULL
//!
static void *rebooting_thread(void *arg)
{
#define REATTACH_RETRIES 3
int i = 0;
int err = 0;
int error = 0;
int rc = 0;
int log_level_for_devstring = EUCATRACE;
char *xml = NULL;
char *remoteDevStr = NULL;
char path[MAX_PATH] = "";
char lpath[MAX_PATH] = "";
char resourceName[1][MAX_SENSOR_NAME_LEN] = { {0} };
char resourceAlias[1][MAX_SENSOR_NAME_LEN] = { {0} };
ncVolume *volume = NULL;
ncInstance *instance = ((ncInstance *) arg);
virDomainPtr dom = NULL;
virConnectPtr *conn = NULL;
logprintfl(EUCADEBUG, "[%s] spawning rebooting thread\n", instance->instanceId);
if ((xml = file2str(instance->libvirtFilePath)) == NULL) {
logprintfl(EUCAERROR, "[%s] cannot obtain instance XML file %s\n", instance->instanceId, instance->libvirtFilePath);
return NULL;
}
if ((conn = check_hypervisor_conn()) == NULL) {
logprintfl(EUCAERROR, "[%s] cannot restart instance %s, abandoning it\n", instance->instanceId, instance->instanceId);
change_state(instance, SHUTOFF);
EUCA_FREE(xml);
return NULL;
}
sem_p(hyp_sem);
{
dom = virDomainLookupByName(*conn, instance->instanceId);
}
sem_v(hyp_sem);
if (dom == NULL) {
EUCA_FREE(xml);
return NULL;
}
sem_p(hyp_sem);
{
// for KVM, must stop and restart the instance
logprintfl(EUCADEBUG, "[%s] destroying domain\n", instance->instanceId);
error = virDomainDestroy(dom); // @todo change to Shutdown? is this synchronous?
virDomainFree(dom);
}
sem_v(hyp_sem);
if (error) {
EUCA_FREE(xml);
return NULL;
}
// Add a shift to values of three of the metrics: ones that
// drop back to zero after a reboot. The shift, which is based
// on the latest value, ensures that values sent upstream do
// not go backwards .
sensor_shift_metric(instance->instanceId, "CPUUtilization");
sensor_shift_metric(instance->instanceId, "NetworkIn");
sensor_shift_metric(instance->instanceId, "NetworkOut");
// domain is now shut down, create a new one with the same XML
sem_p(hyp_sem);
{
logprintfl(EUCAINFO, "[%s] rebooting\n", instance->instanceId);
dom = virDomainCreateLinux(*conn, xml, 0);
}
sem_v(hyp_sem);
EUCA_FREE(xml);
euca_strncpy(resourceName[0], instance->instanceId, MAX_SENSOR_NAME_LEN);
sensor_refresh_resources(resourceName, resourceAlias, 1); // refresh stats so we set base value accurately
// re-attach each volume previously attached
for (i = 0; i < EUCA_MAX_VOLUMES; ++i) {
volume = &instance->volumes[i];
if (strcmp(volume->stateName, VOL_STATE_ATTACHED) && strcmp(volume->stateName, VOL_STATE_ATTACHING))
continue; // skip the entry unless attached or attaching
logprintfl(EUCADEBUG, "[%s] volumes [%d] = '%s'\n", instance->instanceId, i, volume->stateName);
// get credentials, decrypt them
remoteDevStr = get_iscsi_target(volume->remoteDev);
if (!remoteDevStr || !strstr(remoteDevStr, "/dev")) {
logprintfl(EUCAERROR, "[%s] failed to get local name of host iscsi device when re-attaching\n", instance->instanceId);
rc = 1;
} else {
// set the path
snprintf(path, sizeof(path), EUCALYPTUS_VOLUME_XML_PATH_FORMAT, instance->instancePath, volume->volumeId); // vol-XXX.xml
snprintf(lpath, sizeof(lpath), EUCALYPTUS_VOLUME_LIBVIRT_XML_PATH_FORMAT, instance->instancePath, volume->volumeId); // vol-XXX-libvirt.xml
// read in libvirt XML, which may have been modified by the hook above
if ((xml = file2str(lpath)) == NULL) {
logprintfl(EUCAERROR, "[%s][%s] failed to read volume XML from %s\n", instance->instanceId, volume->volumeId, lpath);
rc = 1;
}
}
EUCA_FREE(remoteDevStr);
if (!rc) {
// zhill - wrap with retry in case libvirt is dumb.
err = 0;
for (i = 1; i < REATTACH_RETRIES; i++) {
// protect libvirt calls because we've seen problems during concurrent libvirt invocations
sem_p(hyp_sem);
{
err = virDomainAttachDevice(dom, xml);
}
sem_v(hyp_sem);
if (err) {
logprintfl(EUCAERROR, "[%s][%s] failed to reattach volume (attempt %d of %d)\n", instance->instanceId, volume->volumeId, i,
REATTACH_RETRIES);
logprintfl(EUCADEBUG, "[%s][%s] error from virDomainAttachDevice: %d xml: %s\n", instance->instanceId, volume->volumeId, err,
xml);
sleep(3); // sleep a bit and retry
} else {
logprintfl(EUCAINFO, "[%s][%s] volume reattached as '%s'\n", instance->instanceId, volume->volumeId, volume->localDevReal);
break;
}
}
log_level_for_devstring = EUCATRACE;
if (err)
log_level_for_devstring = EUCADEBUG;
logprintfl(log_level_for_devstring, "[%s][%s] remote device string: %s\n", instance->instanceId, volume->volumeId, volume->remoteDev);
}
EUCA_FREE(xml);
}
if (dom == NULL) {
logprintfl(EUCAERROR, "[%s] failed to restart instance\n", instance->instanceId);
change_state(instance, SHUTOFF);
return NULL;
}
sem_p(hyp_sem);
{
virDomainFree(dom);
}
sem_v(hyp_sem);
return NULL;
#undef REATTACH_RETRIES
}
/* thread that does the actual reboot */
static void * rebooting_thread (void *arg)
{
virConnectPtr *conn;
ncInstance * instance = (ncInstance *)arg;
struct stat statbuf;
int rc = 0;
// RESTARTING,
// FAILED_RESTART,
// SUCCESS_RESTART
logprintfl (EUCADEBUG, "{%u} spawning rebooting thread\n", (unsigned int)pthread_self());
char * xml = file2str (instance->libvirtFilePath);
if (xml == NULL) {
logprintfl (EUCAERROR, "cannot obtain XML file %s\n", instance->libvirtFilePath);
return NULL;
}
conn = check_hypervisor_conn();
if (! conn) {
logprintfl (EUCAERROR, "cannot restart instance %s, abandoning it\n", instance->instanceId);
change_state (instance, SHUTOFF);
free (xml);
return NULL;
}
sem_p(inst_sem);
change_task_state (instance, REBOOTING);
copy_instances ();
sem_v(inst_sem);
sem_p (hyp_sem);
virDomainPtr dom = virDomainLookupByName(*conn, instance->instanceId);
sem_v (hyp_sem);
if (dom == NULL) {
free (xml);
sem_p(inst_sem);
change_task_state (instance, FAILED_REBOOT);
sem_v(inst_sem);
return NULL;
}
sem_p (hyp_sem);
// for KVM, must stop and restart the instance
int error = virDomainDestroy (dom); // TODO: change to Shutdown? TODO: is this synchronous?
virDomainFree(dom);
sem_v (hyp_sem);
if (error) {
free (xml);
sem_p(inst_sem);
change_task_state (instance, FAILED_REBOOT);
sem_v(inst_sem);
return NULL;
}
#if 0
// domain is now shut down, create a new one with the same XML
sem_p (hyp_sem);
dom = virDomainCreateLinux (*conn, xml, 0);
sem_v (hyp_sem);
free (xml);
char *remoteDevStr=NULL;
// re-attach each volume previously attached
for (int i=0; i < EUCA_MAX_VOLUMES; ++i) {
ncVolume * volume = &instance->volumes[i];
if (strcmp (volume->stateName, VOL_STATE_ATTACHED) &&
strcmp (volume->stateName, VOL_STATE_ATTACHING))
continue; // skip the entry unless attached or attaching
char attach_xml[1024];
int rc;
// get credentials, decrypt them
remoteDevStr = get_iscsi_target (volume->remoteDev);
if (!remoteDevStr || !strstr(remoteDevStr, "/dev")) {
logprintfl(EUCAERROR, "Reattach-volume: failed to get local name of host iscsi device\n");
rc = 1;
} else {
rc = gen_libvirt_attach_xml (volume->volumeId,
instance,
volume->localDevReal,
remoteDevStr,
attach_xml,
sizeof(attach_xml));
}
if (remoteDevStr)
free (remoteDevStr);
if (!rc) {
int err;
sem_p (hyp_sem);
err = virDomainAttachDevice (dom, attach_xml);
sem_v (hyp_sem);
if (err) {
logprintfl (EUCAERROR, "virDomainAttachDevice() failed (err=%d) XML=%s\n", err, attach_xml);
} else {
logprintfl (EUCAINFO, "reattached '%s' to '%s' in domain %s\n", volume->remoteDev, volume->localDevReal, instance->instanceId);
}
}
}
#endif
int ret=restore_and_volume_instance(instance->instanceId); //20130122-th
if (ret==1) {
logprintfl (EUCAERROR, "Failed to REBOOT instance %s\n", instance->instanceId);
change_state (instance, SHUTOFF);
sem_p(inst_sem);
change_task_state (instance, FAILED_REBOOT);
sem_v(inst_sem);
return NULL;
}
sem_p(inst_sem);
change_task_state (instance, SUCCESS_REBOOT);
save_instance_struct (instance);
copy_instances();
sem_v (inst_sem);
return NULL;
}
//!
//!
//!
//! @param[in] arg
//!
//! @return Always returns NULL
//!
static void *startup_thread(void *arg)
{
int fd = 0;
int iter = 0;
long long tid = (*(long long *)arg);
virDomainPtr dom = NULL;
char file_name[1024] = { 0 };
char xml[4096] = { 0 };
char *xml_template =
"<?xml version='1.0' encoding='UTF-8'?>"
"<domain type='kvm'>"
" <name>tortura-%04lld</name>"
" <description>Eucalyptus instance i-XXX</description>"
" <os>"
" <type>hvm</type>"
" </os>"
" <features>"
" <acpi/>"
" </features>"
" <clock offset='localtime'/>"
" <on_poweroff>destroy</on_poweroff>"
" <on_reboot>restart</on_reboot>"
" <on_crash>destroy</on_crash>"
" <vcpu>1</vcpu>"
" <memory>52428</memory>"
" <devices>" " <disk device='disk'>" " <source file='%s'/>" " <target bus='virtio' dev='vda'/>" " </disk>" " </devices>" "</domain>";
snprintf(file_name, sizeof(file_name), "%s/%s-%lld", get_current_dir_name(), DUMMY_DISK_FILE, tid);
umask(0000);
if ((fd = open(file_name, O_RDWR | O_CREAT | O_TRUNC, 0666)) < 0) {
printf("failed to create %s\n", DUMMY_DISK_FILE);
perror("libvirt_tortura");
exit(1);
}
if (lseek(fd, DUMMY_DISK_SIZE_BYTES, SEEK_SET) == ((off_t) - 1)) {
printf("failed to seek in %s\n", DUMMY_DISK_FILE);
perror("libvirt_tortura");
exit(1);
}
if (write(fd, "x", 1) != 1) {
printf("failed to write to %s\n", DUMMY_DISK_FILE);
perror("libvirt_tortura");
exit(1);
}
close(fd);
sync();
check_hypervisor_conn();
for (iter = 0; iter < SITERS; iter++) {
printf("startup thread %lld starting iteration %d\n", tid, iter);
snprintf(xml, sizeof(xml), xml_template, tid, file_name);
pthread_mutex_lock(&check_mutex);
{
dom = virDomainCreateLinux(conn, xml, 0);
}
pthread_mutex_unlock(&check_mutex);
sleep(3);
if (dom == NULL) {
printf("ERROR: failed to start domain\n");
continue;
}
pthread_mutex_lock(&check_mutex);
{
virDomainDestroy(dom);
virDomainFree(dom);
dom = NULL;
}
pthread_mutex_unlock(&check_mutex);
}
unlink(file_name);
return (NULL);
}
int main(int argc, char *argv[])
{
virConnectPtr conn;
virDomainPtr vdp;
int i=-1,ch;
char *host;
conn = virConnectOpen("xen:///");
if (conn == NULL) {
fprintf(stderr, "Failed to open connection to xen:///\n");
return 1;
}
//host = virConnectGetHostname(conn);
vdp=virDomainLookupByName(conn,"ubuntu_connection");
printf("\nMenu\n----\n1.Connect\n2.Suspend\n3.Resume\n 4.Shutdown\n");
printf("Enter your choice:\n");
scanf("%d",&ch);
switch(ch) {
case 1:
i=virDomainCreate(vdp);
if(i==0)
{
printf("Success\n");
}else{
printf("Failed\n");
}
break;
case 2:
/* suspend*/
i=virDomainSuspend(vdp);
if(i==0)
{
printf("Success\n");
}else{
printf("Failed\n");
}
break;
case 3:
/*resume*/
i=virDomainResume(vdp);
if(i==0)
{
printf("Success\n");
}else{
printf("Failed\n");
}
break;
case 4:
/*shutdown*/
i=virDomainDestroy(vdp);
if(i==0)
{
printf("Success\n");
}else{
printf("Failed\n");
}
break;
default:
printf("INVALID");
virConnectClose(conn);
return 0;
}
}
static void
refresh_instance_info( struct nc_state_t *nc,
ncInstance *instance)
{
int now = instance->state;
if (! check_hypervisor_conn ())
return;
/* no need to bug for domains without state on Hypervisor */
if (now==TEARDOWN || now==STAGING)
return;
sem_p(hyp_sem);
virDomainPtr dom = virDomainLookupByName (nc_state.conn, instance->instanceId);
sem_v(hyp_sem);
if (dom == NULL) { /* hypervisor doesn't know about it */
if (now==RUNNING ||
now==BLOCKED ||
now==PAUSED ||
now==SHUTDOWN) {
/* Most likely the user has shut it down from the inside */
if (instance->retries) {
instance->retries--;
logprintfl (EUCAWARN, "warning: hypervisor failed to find domain %s, will retry %d more times\n", instance->instanceId, instance->retries);
} else {
logprintfl (EUCAWARN, "warning: hypervisor failed to find domain %s, assuming it was shut off\n", instance->instanceId);
change_state (instance, SHUTOFF);
}
}
/* else 'now' stays in SHUTFOFF, BOOTING, CANCELED, or CRASHED */
return;
}
virDomainInfo info;
sem_p(hyp_sem);
int error = virDomainGetInfo(dom, &info);
sem_v(hyp_sem);
if (error < 0 || info.state == VIR_DOMAIN_NOSTATE) {
logprintfl (EUCAWARN, "warning: failed to get informations for domain %s\n", instance->instanceId);
/* what to do? hopefully we'll find out more later */
sem_p(hyp_sem);
virDomainFree (dom);
sem_v(hyp_sem);
return;
}
int xen = info.state;
switch (now) {
case BOOTING:
case RUNNING:
case BLOCKED:
case PAUSED:
/* change to state, whatever it happens to be */
change_state (instance, xen);
break;
case SHUTDOWN:
case SHUTOFF:
case CRASHED:
if (xen==RUNNING ||
xen==BLOCKED ||
xen==PAUSED) {
/* cannot go back! */
logprintfl (EUCAWARN, "warning: detected prodigal domain %s, terminating it\n", instance->instanceId);
sem_p (hyp_sem);
virDomainDestroy (dom);
sem_v (hyp_sem);
} else {
change_state (instance, xen);
}
break;
default:
logprintfl (EUCAERROR, "error: refresh...(): unexpected state (%d) for instance %s\n", now, instance->instanceId);
return;
}
sem_p(hyp_sem);
virDomainFree(dom);
sem_v(hyp_sem);
/* if instance is running, try to find out its IP address */
if (instance->state==RUNNING ||
instance->state==BLOCKED ||
instance->state==PAUSED) {
char *ip=NULL;
int rc;
if (!strncmp(instance->ncnet.publicIp, "0.0.0.0", 24)) {
if (!strcmp(nc_state.vnetconfig->mode, "SYSTEM") || !strcmp(nc_state.vnetconfig->mode, "STATIC")) {
rc = mac2ip(nc_state.vnetconfig, instance->ncnet.privateMac, &ip);
if (!rc) {
if(ip) {
logprintfl (EUCAINFO, "discovered public IP %s for instance %s\n", ip, instance->instanceId);
strncpy(instance->ncnet.publicIp, ip, 24);
free(ip);
}
}
}
}
if (!strncmp(instance->ncnet.privateIp, "0.0.0.0", 24)) {
rc = mac2ip(nc_state.vnetconfig, instance->ncnet.privateMac, &ip);
if (!rc) {
if(ip) {
logprintfl (EUCAINFO, "discovered private IP %s for instance %s\n", ip, instance->instanceId);
strncpy(instance->ncnet.privateIp, ip, 24);
free(ip);
}
}
}
}
}
int main(int argc, char *argv[])
{
virConnectPtr conn;
virDomainPtr vdp;
int val=-1;
int choice;
char *host;
conn = virConnectOpen("xen:///");
if (conn == NULL) {
fprintf(stderr, "Failed to open connection to xen:///\n");
return 1;
}
printf("1.Suspend\n2.Resume\n3.Stop\n4.Start\n4.Exit");
scanf("%d",&choice);
while(1)
{
vdp=virDomainLookupById(conn,1);
if(choice==1)
{
/* suspend*/
val=virDomainSuspend(vdp);
if(val==0)
{
printf("Success");
}else{
printf("Failed");
}
}
else if(choice==2)
{
/*resume*/
val=virDomainResume(vdp);
if(val==0)
{
printf("Success");
}else{
printf("Failed");
}
}
else if(choice==3)
{
/*shutdown*/
val=virDomainDestroy(vdp);
if(val==0)
{
printf("Success");
}else{
printf("Failed");
}
}
else if(choice==4)
{
/*start*/
val=virDomainCreate(vdp);
if(val==0)
{
printf("Success");
}else{
printf("Failed");
}
}
else if(choice==5)
{
virConnectClose(conn);
break;
}
}
return 0;
}
/**
* @brief forceful shutdown of domain
* @return true if the domain was shut down without error, otherwise false
*
* The domain is sent a sigterm signal followed by a sigkill signal after
* timeout period without success
*/
bool Domain::destroy()
{
// TODO(txwikinger): check if it can be stopped
return (virDomainDestroy(m_domain) == 0);
}
static int
libvirt_reboot(const char *vm_name, const char *src,
uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp, nvdp;
virDomainInfo vdi;
char *domain_desc;
int ret;
//uuid_unparse(vm_uuid, uu_string);
dbg_printf(5, "%s %s\n", __FUNCTION__, vm_name);
VALIDATE(info);
if (is_uuid(vm_name)) {
vdp = virDomainLookupByUUIDString(info->vp,
(const char *)vm_name);
} else {
vdp = virDomainLookupByName(info->vp, vm_name);
}
if (!vdp) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to "
"do - domain does not exist\n");
return 1;
}
if (((virDomainGetInfo(vdp, &vdi) == 0) &&
(vdi.state == VIR_DOMAIN_SHUTOFF))) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to "
"do - domain is off\n");
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Rebooting domain %s\n", vm_name);
printf("Rebooting domain %s...\n", vm_name);
domain_desc = virDomainGetXMLDesc(vdp, 0);
if (!domain_desc) {
printf("Failed getting domain description from "
"libvirt\n");
}
dbg_printf(2, "[REBOOT] Calling virDomainDestroy(%p)\n", vdp);
ret = virDomainDestroy(vdp);
if (ret < 0) {
printf("virDomainDestroy() failed: %d/%d\n", ret, errno);
free(domain_desc);
virDomainFree(vdp);
return 1;
}
ret = wait_domain(vm_name, info->vp, 15);
if (ret) {
syslog(LOG_NOTICE, "Domain %s still exists; fencing failed\n",
vm_name);
printf("Domain %s still exists; fencing failed\n", vm_name);
if (domain_desc)
free(domain_desc);
return 1;
}
if (!domain_desc)
return 0;
/* 'on' is not a failure */
ret = 0;
dbg_printf(3, "[[ XML Domain Info ]]\n");
dbg_printf(3, "%s\n[[ XML END ]]\n", domain_desc);
dbg_printf(2, "Calling virDomainCreateLinux()...\n");
nvdp = virDomainCreateLinux(info->vp, domain_desc, 0);
if (nvdp == NULL) {
/* More recent versions of libvirt or perhaps the
* KVM back-end do not let you create a domain from
* XML if there is already a defined domain description
* with the same name that it knows about. You must
* then call virDomainCreate() */
dbg_printf(2, "Failed; Trying virDomainCreate()...\n");
if (virDomainCreate(vdp) < 0) {
syslog(LOG_NOTICE,
"Could not restart %s\n",
vm_name);
dbg_printf(1, "Failed to recreate guest"
" %s!\n", vm_name);
}
}
free(domain_desc);
return ret;
}
static int
testDomainStartStopEvent(const void *data)
{
const objecteventTest *test = data;
lifecycleEventCounter counter;
int eventId = VIR_DOMAIN_EVENT_ID_LIFECYCLE;
int id;
int ret = -1;
virDomainPtr dom;
virConnectPtr conn2 = NULL;
virDomainPtr dom2 = NULL;
lifecycleEventCounter_reset(&counter);
dom = virDomainLookupByName(test->conn, "test");
if (dom == NULL)
return -1;
id = virConnectDomainEventRegisterAny(test->conn, dom, eventId,
VIR_DOMAIN_EVENT_CALLBACK(&domainLifecycleCb),
&counter, NULL);
/* Test domain is started */
virDomainDestroy(dom);
virDomainCreate(dom);
if (virEventRunDefaultImpl() < 0)
goto cleanup;
if (counter.startEvents != 1 || counter.stopEvents != 1 ||
counter.unexpectedEvents > 0)
goto cleanup;
/* Repeat the test, but this time, trigger the events via an
* alternate connection. */
if (!(conn2 = virConnectOpen("test:///default")))
goto cleanup;
if (!(dom2 = virDomainLookupByName(conn2, "test")))
goto cleanup;
if (virDomainDestroy(dom2) < 0)
goto cleanup;
if (virDomainCreate(dom2) < 0)
goto cleanup;
if (virEventRunDefaultImpl() < 0)
goto cleanup;
if (counter.startEvents != 2 || counter.stopEvents != 2 ||
counter.unexpectedEvents > 0)
goto cleanup;
ret = 0;
cleanup:
virConnectDomainEventDeregisterAny(test->conn, id);
virDomainFree(dom);
if (dom2)
virDomainFree(dom2);
if (conn2)
virConnectClose(conn2);
return ret;
}
static int
testDomainCreateXMLMixed(const void *data)
{
const objecteventTest *test = data;
lifecycleEventCounter counter;
virDomainPtr dom;
int ret = -1;
int id1 = -1;
int id2 = -1;
bool registered = false;
lifecycleEventCounter_reset(&counter);
/* Fun with mixing old and new API, also with global and
* per-domain. Handler should be fired three times, once for each
* registration. */
dom = virDomainDefineXML(test->conn, domainDef);
if (dom == NULL)
goto cleanup;
id1 = virConnectDomainEventRegisterAny(test->conn, dom,
VIR_DOMAIN_EVENT_ID_LIFECYCLE,
VIR_DOMAIN_EVENT_CALLBACK(&domainLifecycleCb),
&counter, NULL);
if (id1 < 0)
goto cleanup;
if (virConnectDomainEventRegister(test->conn,
domainLifecycleCb,
&counter, NULL) != 0)
goto cleanup;
registered = true;
id2 = virConnectDomainEventRegisterAny(test->conn, NULL,
VIR_DOMAIN_EVENT_ID_LIFECYCLE,
VIR_DOMAIN_EVENT_CALLBACK(&domainLifecycleCb),
&counter, NULL);
if (id2 < 0)
goto cleanup;
dom = virDomainCreateXML(test->conn, domainDef, 0);
if (dom == NULL || virEventRunDefaultImpl() < 0)
goto cleanup;
if (counter.startEvents != 3 || counter.unexpectedEvents > 0)
goto cleanup;
if (virConnectDomainEventDeregister(test->conn, domainLifecycleCb) != 0)
goto cleanup;
registered = false;
if (virConnectDomainEventDeregisterAny(test->conn, id1) != 0)
goto cleanup;
id1 = -1;
if (virConnectDomainEventDeregisterAny(test->conn, id2) != 0)
goto cleanup;
id2 = -1;
ret = 0;
cleanup:
if (id1 >= 0)
virConnectDomainEventDeregisterAny(test->conn, id1);
if (id2 >= 0)
virConnectDomainEventDeregisterAny(test->conn, id2);
if (registered)
virConnectDomainEventDeregister(test->conn, domainLifecycleCb);
if (dom != NULL) {
virDomainUndefine(dom);
virDomainDestroy(dom);
virDomainFree(dom);
}
return ret;
}