/* creates network intereface for VM */
int
createVifNetwork (virConnectPtr conn, xen_vm vm, char *device,
char *bridge, char *mac)
{
xen_session *session = ((struct _xenapiPrivate *)(conn->privateData))->session;
xen_vm xvm = NULL;
char *uuid = NULL;
xen_vm_get_uuid(session, &uuid, vm);
if (uuid) {
if (!xen_vm_get_by_uuid(session, &xvm, uuid))
return -1;
VIR_FREE(uuid);
}
xen_vm_record_opt *vm_opt = xen_vm_record_opt_alloc();
vm_opt->is_record = 0;
vm_opt->u.handle = xvm;
xen_network_set *net_set = NULL;
xen_network_record *net_rec = NULL;
int cnt = 0;
if (xen_network_get_all(session, &net_set)) {
for(cnt = 0; cnt < net_set->size; cnt++) {
if (xen_network_get_record(session, &net_rec, net_set->contents[cnt])) {
if (STREQ(net_rec->bridge, bridge)) {
break;
} else {
xen_network_record_free(net_rec);
}
}
}
}
if (cnt < net_set->size && net_rec) {
xen_network network = NULL;
xen_network_get_by_uuid(session, &network, net_rec->uuid);
xen_network_record_opt *network_opt = xen_network_record_opt_alloc();
network_opt->is_record = 0;
network_opt->u.handle = network;
xen_vif_record *vif_record = xen_vif_record_alloc();
vif_record->mac = mac;
vif_record->vm = vm_opt;
vif_record->network = network_opt;
xen_vif vif = NULL;
vif_record->other_config = xen_string_string_map_alloc(0);
vif_record->runtime_properties = xen_string_string_map_alloc(0);
vif_record->qos_algorithm_params = xen_string_string_map_alloc(0);
vif_record->device = strdup(device);
xen_vif_create(session, &vif, vif_record);
if (!vif) {
xen_vif_free(vif);
xen_vif_record_free(vif_record);
xen_network_record_free(net_rec);
xen_network_set_free(net_set);
return 0;
}
xen_vif_record_free(vif_record);
xen_network_record_free(net_rec);
}
if (net_set != NULL) xen_network_set_free(net_set);
return -1;
}
/******************************************************************************
* checks for migratability or actually does the migration
******************************************************************************/
int MigrateVirtualSystem(
const CMPIBroker *broker, /* in - CMPI Broker that does most of the work */
const CMPIContext *context, /* in - CMPI context for the caller */
const CMPIArgs *argsin, /* in - All the arguments for the method */
const CMPIArgs *argsout, /* out - All the output arguments for the method */
xen_utils_session *session, /* in - Session for making xen calls */
bool host_ip, /* in - The host parameter is an IP address */
bool migrate_check_only, /* in -Check if migration is possible only, dont actually migrate */
CMPIStatus *status) /* out - Report CMPI status of method */
{
char *hostid = NULL, *vm_uuid = NULL;
CMPIData argdata;
xen_vm vm = NULL;
xen_host_set *host_set = NULL;
CMPIInstance *msd = NULL;
xen_host host = NULL;
int rc = Xen_VirtualSystemMigrationService_MigrateVirtualSystemToSystem_Invalid_Parameter;
CMPIrc statusrc = CMPI_RC_ERR_INVALID_PARAMETER;
char *error_msg = "ERROR: Unknown error";
xen_string_string_map *other_config=NULL;
/* For now only Live migrations are supported */
if(_GetArgument(broker, argsin, "MigrationSettingData", CMPI_chars, &argdata, status)) {
/* Argument passed in as a MOF string, parse it */
msd = xen_utils_parse_embedded_instance(broker, CMGetCharPtr(argdata.value.string));
if (msd == NULL) { // parser returns zero for success, non-zero for error
error_msg = "ERROR: Couldnt parse the 'MigrationSettingData' parameter";
goto Exit;
}
}
else
/* Argument could have been passed in as an intance */
if(_GetArgument(broker, argsin, "MigrationSettingData", CMPI_instance, &argdata, status))
msd = argdata.value.inst;
if(msd != NULL) {
CMPIData data = CMGetProperty(msd, "MigrationType", status);
if(data.value.uint16 != Xen_VirtualSystemMigrationSettingData_MigrationType_Live) {
error_msg = "ERROR: 'MigrationSettingData' contains an invalid MigrationType (Live expected)";
goto Exit;
}
}
/* Host to migrate to */
if(!host_ip) {
/* required parameters */
if(!_GetArgument(broker, argsin, "DestinationSystem", CMPI_ref, &argdata, status)){
error_msg = "ERROR: 'DestionationSystem' parameter is missing";
goto Exit;
}
else {
/* This is the CIM reference to an existing Host object */
CMPIData key;
key = CMGetKey(argdata.value.ref, "Name", status);
if(status->rc != CMPI_RC_OK || CMIsNullValue(key)) {
error_msg = "ERROR: 'DestinationSystem' is missing the required 'Name' key";
goto Exit;
}
hostid = CMGetCharPtr(key.value.string);
if(!xen_host_get_by_uuid(session->xen, &host, hostid))
goto Exit;
}
}
else {
if(!_GetArgument(broker, argsin, "DestinationHost", CMPI_string, &argdata, status)) {
error_msg = "ERROR: 'DestinationHost' parameter is missing";
goto Exit;
}
else {
/* Determing Xen host based on IP address,. Cannot use inet_pton() and so on since DNS may not have been configured properly */
hostid = CMGetCharPtr(argdata.value.string);
_SBLIM_TRACE(_SBLIM_TRACE_LEVEL_INFO, ("Trying to migrate to DestinationHost : %s", hostid));
if(!xen_host_get_all(session->xen, &host_set))
goto Exit;
int i=0;
for (i=0; i<host_set->size; i++) {
xen_host_record *host_rec = NULL;
if(!xen_host_get_record(session->xen, &host_rec, host_set->contents[i]))
goto Exit;
/* DestinationHost could be an IP address or the hostname */
if((host_rec->address && (strcmp(hostid, host_rec->address) == 0)) ||
(host_rec->hostname && (strcmp(hostid, host_rec->hostname) == 0)) ||
(host_rec->name_label && (strcmp(hostid, host_rec->name_label) == 0))) {
xen_host_record_free(host_rec);
host = host_set->contents[i];
host_set->contents[i] = NULL; /* dont free this one */
break;
}
xen_host_record_free(host_rec);
}
}
}
/* VM to migrate - required parameter */
if(!_GetArgument(broker, argsin, "ComputerSystem", CMPI_ref, &argdata, status)) {
if(!_GetArgument(broker, argsin, "ComputerSystem", CMPI_string, &argdata, status)) {
error_msg = "ERROR: Missing the required 'ComputerSystem' parameter";
goto Exit;
}
else
vm_uuid = CMGetCharPtr(argdata.value.string);
} else {
argdata = CMGetKey(argdata.value.ref, "Name", status);
if(status->rc != CMPI_RC_OK || CMIsNullValue(argdata)) {
error_msg = "ERROR: ComputerSystem is missing the required 'Name' key";
goto Exit;
}
vm_uuid = CMGetCharPtr(argdata.value.string);
}
status->rc = CMPI_RC_ERR_FAILED;
rc = Xen_VirtualSystemMigrationService_MigrateVirtualSystemToSystem_Failed;
if(xen_vm_get_by_uuid(session->xen, &vm, vm_uuid)) {
_SBLIM_TRACE(_SBLIM_TRACE_LEVEL_ERROR, ("Migrating %s to %s", vm_uuid, hostid));
if(migrate_check_only) {
/* Check to see if migration is possible */
statusrc = CMPI_RC_OK;
rc = Xen_VirtualSystemMigrationService_MigrateVirtualSystemToSystem_Completed_with_No_Error;
bool migratable = xen_vm_assert_can_boot_here(session->xen, vm, host);
if(migratable == false || !session->xen->ok) {
migratable = false;
// Workaround for kvp migration
if(session->xen->error_description_count==1) {
if(xen_vm_get_other_config(session->xen, &other_config, vm)) {
if(xen_utils_get_from_string_string_map(other_config, "kvp_enabled")) {
_SBLIM_TRACE(_SBLIM_TRACE_LEVEL_INFO, ("Overwriting migratable to mark kvp vm as migratable, although its network"));
migratable=true;
RESET_XEN_ERROR(session->xen);
}
free(other_config);
} else {
_SBLIM_TRACE(_SBLIM_TRACE_LEVEL_ERROR, ("Could not get other config."));
}
}
if(migratable == false && session->xen->error_description) {
/* This is not part of the MOF (and is not documented), but nice to have */
char *xen_error = xen_utils_get_xen_error(session->xen);
CMAddArg(argsout, "Reason", (CMPIValue *)xen_error, CMPI_chars);
free(xen_error);
}
}
CMAddArg(argsout, "IsMigratable", (CMPIValue *)&migratable, CMPI_boolean);
}
else {
/* Do the actual migration, this could take a few minutes */
CMPIObjectPath* job_instance_op = NULL;
migrate_job_context *job_context = calloc(1, sizeof(migrate_job_context));
if(!job_context) {
error_msg = "ERROR: Couldn't allocate memory for the migrate job.";
goto Exit;
}
job_context->vm = vm;
job_context->host = host;
if(!job_create(broker, context, session, MIGRATE_VM_TASK_NAME, vm_uuid,
migrate_task, job_context, &job_instance_op, status)) {
error_msg = "ERROR: Couldn't prepare the Migrate job. Job wasnt started.";
goto Exit;
}
statusrc = CMPI_RC_OK;
rc = Xen_VirtualSystemMigrationService_MigrateVirtualSystemToHost_Method_Parameters_Checked___Job_Started;
CMAddArg(argsout, "Job", (CMPIValue *)&job_instance_op, CMPI_ref);
vm = NULL; /* freed by async thread */
host = NULL; /* freed by async thread */
}
}
Exit:
if(host)
xen_host_free(host);
if(vm)
xen_vm_free(vm);
if(host_set)
xen_host_set_free(host_set);
xen_utils_set_status(broker, status, statusrc, error_msg, session->xen);
return rc;
}