int
libxlMakeNic(virDomainDefPtr def,
virDomainNetDefPtr l_nic,
libxl_device_nic *x_nic)
{
bool ioemu_nic = STREQ(def->os.type, "hvm");
virDomainNetType actual_type = virDomainNetGetActualType(l_nic);
/* TODO: Where is mtu stored?
*
* x_nics[i].mtu = 1492;
*/
if (l_nic->script && !(actual_type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actual_type == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("specifying a script is only supported with "
"interface types bridge and ethernet"));
return -1;
}
libxl_device_nic_init(x_nic);
virMacAddrGetRaw(&l_nic->mac, x_nic->mac);
if (ioemu_nic)
x_nic->nictype = LIBXL_NIC_TYPE_VIF_IOEMU;
else
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
if (l_nic->model) {
if (VIR_STRDUP(x_nic->model, l_nic->model) < 0)
return -1;
if (STREQ(l_nic->model, "netfront"))
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
}
if (VIR_STRDUP(x_nic->ifname, l_nic->ifname) < 0)
return -1;
switch (actual_type) {
case VIR_DOMAIN_NET_TYPE_BRIDGE:
if (VIR_STRDUP(x_nic->bridge,
virDomainNetGetActualBridgeName(l_nic)) < 0)
return -1;
/* fallthrough */
case VIR_DOMAIN_NET_TYPE_ETHERNET:
if (VIR_STRDUP(x_nic->script, l_nic->script) < 0)
return -1;
break;
case VIR_DOMAIN_NET_TYPE_NETWORK:
{
bool fail = false;
char *brname = NULL;
virNetworkPtr network;
virConnectPtr conn;
virErrorPtr errobj;
if (!(conn = virConnectOpen("xen:///system")))
return -1;
if (!(network =
virNetworkLookupByName(conn, l_nic->data.network.name))) {
virObjectUnref(conn);
return -1;
}
if ((brname = virNetworkGetBridgeName(network))) {
if (VIR_STRDUP(x_nic->bridge, brname) < 0)
fail = true;
} else {
fail = true;
}
VIR_FREE(brname);
/* Preserve any previous failure */
errobj = virSaveLastError();
virNetworkFree(network);
virSetError(errobj);
virFreeError(errobj);
virObjectUnref(conn);
if (fail)
return -1;
break;
}
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_DIRECT:
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
case VIR_DOMAIN_NET_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported interface type %s"),
virDomainNetTypeToString(l_nic->type));
return -1;
}
return 0;
}
/**
* virLXCProcessSetupInterfaces:
* @conn: pointer to connection
* @def: pointer to virtual machine structure
* @nveths: number of interfaces
* @veths: interface names
*
* Sets up the container interfaces by creating the veth device pairs and
* attaching the parent end to the appropriate bridge. The container end
* will moved into the container namespace later after clone has been called.
*
* Returns 0 on success or -1 in case of error
*/
static int virLXCProcessSetupInterfaces(virConnectPtr conn,
virDomainDefPtr def,
size_t *nveths,
char ***veths)
{
int ret = -1;
size_t i;
for (i = 0; i < def->nnets; i++) {
char *veth = NULL;
/* If appropriate, grab a physical device from the configured
* network's pool of devices, or resolve bridge device name
* to the one defined in the network definition.
*/
if (networkAllocateActualDevice(def, def->nets[i]) < 0)
goto cleanup;
if (VIR_EXPAND_N(*veths, *nveths, 1) < 0)
goto cleanup;
switch (virDomainNetGetActualType(def->nets[i])) {
case VIR_DOMAIN_NET_TYPE_NETWORK: {
virNetworkPtr network;
char *brname = NULL;
bool fail = false;
int active;
virErrorPtr errobj;
if (!(network = virNetworkLookupByName(conn,
def->nets[i]->data.network.name)))
goto cleanup;
active = virNetworkIsActive(network);
if (active != 1) {
fail = true;
if (active == 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Network '%s' is not active."),
def->nets[i]->data.network.name);
}
if (!fail) {
brname = virNetworkGetBridgeName(network);
if (brname == NULL)
fail = true;
}
/* Make sure any above failure is preserved */
errobj = virSaveLastError();
virNetworkFree(network);
virSetError(errobj);
virFreeError(errobj);
if (fail)
goto cleanup;
if (!(veth = virLXCProcessSetupInterfaceBridged(conn,
def,
def->nets[i],
brname))) {
VIR_FREE(brname);
goto cleanup;
}
VIR_FREE(brname);
break;
}
case VIR_DOMAIN_NET_TYPE_BRIDGE: {
const char *brname = virDomainNetGetActualBridgeName(def->nets[i]);
if (!brname) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No bridge name specified"));
goto cleanup;
}
if (!(veth = virLXCProcessSetupInterfaceBridged(conn,
def,
def->nets[i],
brname)))
goto cleanup;
} break;
case VIR_DOMAIN_NET_TYPE_DIRECT:
if (!(veth = virLXCProcessSetupInterfaceDirect(conn,
def,
def->nets[i])))
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_ETHERNET:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unsupported network type %s"),
virDomainNetTypeToString(
virDomainNetGetActualType(def->nets[i])
));
goto cleanup;
}
(*veths)[(*nveths)-1] = veth;
}
ret = 0;
cleanup:
if (ret < 0) {
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr iface = def->nets[i];
virNetDevVPortProfilePtr vport = virDomainNetGetActualVirtPortProfile(iface);
if (vport && vport->virtPortType == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH)
ignore_value(virNetDevOpenvswitchRemovePort(
virDomainNetGetActualBridgeName(iface),
iface->ifname));
networkReleaseActualDevice(def, iface);
}
}
return ret;
}
static int
bhyveBuildNetArgStr(const virDomainDef *def,
virDomainNetDefPtr net,
virCommandPtr cmd,
bool dryRun)
{
char macaddr[VIR_MAC_STRING_BUFLEN];
char *realifname = NULL;
char *brname = NULL;
int actualType = virDomainNetGetActualType(net);
if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
if (VIR_STRDUP(brname, virDomainNetGetActualBridgeName(net)) < 0)
return -1;
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Network type %d is not supported"),
virDomainNetGetActualType(net));
return -1;
}
if (!net->ifname ||
STRPREFIX(net->ifname, VIR_NET_GENERATED_PREFIX) ||
strchr(net->ifname, '%')) {
VIR_FREE(net->ifname);
if (VIR_STRDUP(net->ifname, VIR_NET_GENERATED_PREFIX "%d") < 0) {
VIR_FREE(brname);
return -1;
}
}
if (!dryRun) {
if (virNetDevTapCreateInBridgePort(brname, &net->ifname, &net->mac,
def->uuid, NULL, NULL, 0,
virDomainNetGetActualVirtPortProfile(net),
virDomainNetGetActualVlan(net),
VIR_NETDEV_TAP_CREATE_IFUP | VIR_NETDEV_TAP_CREATE_PERSIST) < 0) {
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
realifname = virNetDevTapGetRealDeviceName(net->ifname);
if (realifname == NULL) {
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
VIR_DEBUG("%s -> %s", net->ifname, realifname);
/* hack on top of other hack: we need to set
* interface to 'UP' again after re-opening to find its
* name
*/
if (virNetDevSetOnline(net->ifname, true) != 0) {
VIR_FREE(realifname);
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
} else {
if (VIR_STRDUP(realifname, "tap0") < 0)
return -1;
}
virCommandAddArg(cmd, "-s");
virCommandAddArgFormat(cmd, "%d:0,virtio-net,%s,mac=%s",
net->info.addr.pci.slot,
realifname, virMacAddrFormat(&net->mac, macaddr));
VIR_FREE(realifname);
return 0;
}
static int
bhyveBuildNetArgStr(const virDomainDef *def, virCommandPtr cmd)
{
virDomainNetDefPtr net = NULL;
char *brname = NULL;
char *realifname = NULL;
int *tapfd = NULL;
if (def->nnets != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("domain should have one and only one net defined"));
return -1;
}
net = def->nets[0];
if (net) {
int actualType = virDomainNetGetActualType(net);
if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
if (VIR_STRDUP(brname, virDomainNetGetActualBridgeName(net)) < 0)
return -1;
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Network type %d is not supported"),
virDomainNetGetActualType(net));
return -1;
}
if (!net->ifname ||
STRPREFIX(net->ifname, VIR_NET_GENERATED_PREFIX) ||
strchr(net->ifname, '%')) {
VIR_FREE(net->ifname);
if (VIR_STRDUP(net->ifname, VIR_NET_GENERATED_PREFIX "%d") < 0) {
VIR_FREE(brname);
return -1;
}
}
if (virNetDevTapCreateInBridgePort(brname, &net->ifname, &net->mac,
def->uuid, tapfd, 1,
virDomainNetGetActualVirtPortProfile(net),
virDomainNetGetActualVlan(net),
VIR_NETDEV_TAP_CREATE_IFUP | VIR_NETDEV_TAP_CREATE_PERSIST) < 0) {
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
}
realifname = virBhyveTapGetRealDeviceName(net->ifname);
if (realifname == NULL) {
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
VIR_DEBUG("%s -> %s", net->ifname, realifname);
/* hack on top of other hack: we need to set
* interface to 'UP' again after re-opening to find its
* name
*/
if (virNetDevSetOnline(net->ifname, true) != 0) {
VIR_FREE(net->ifname);
VIR_FREE(brname);
return -1;
}
virCommandAddArgList(cmd, "-s", "0:0,hostbridge", NULL);
virCommandAddArg(cmd, "-s");
virCommandAddArgFormat(cmd, "1:0,virtio-net,%s", realifname);
return 0;
}
/**
* virLXCProcessSetupInterfaces:
* @conn: pointer to connection
* @def: pointer to virtual machine structure
* @nveths: number of interfaces
* @veths: interface names
*
* Sets up the container interfaces by creating the veth device pairs and
* attaching the parent end to the appropriate bridge. The container end
* will moved into the container namespace later after clone has been called.
*
* Returns 0 on success or -1 in case of error
*/
static int virLXCProcessSetupInterfaces(virConnectPtr conn,
virDomainDefPtr def,
size_t *nveths,
char ***veths)
{
int ret = -1;
size_t i;
size_t niface = 0;
virDomainNetDefPtr net;
virDomainNetType type;
for (i = 0; i < def->nnets; i++) {
char *veth = NULL;
virNetDevBandwidthPtr actualBandwidth;
/* If appropriate, grab a physical device from the configured
* network's pool of devices, or resolve bridge device name
* to the one defined in the network definition.
*/
net = def->nets[i];
if (networkAllocateActualDevice(def, net) < 0)
goto cleanup;
if (VIR_EXPAND_N(*veths, *nveths, 1) < 0)
goto cleanup;
type = virDomainNetGetActualType(net);
switch (type) {
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE: {
const char *brname = virDomainNetGetActualBridgeName(net);
if (!brname) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No bridge name specified"));
goto cleanup;
}
if (!(veth = virLXCProcessSetupInterfaceBridged(def,
net,
brname)))
goto cleanup;
} break;
case VIR_DOMAIN_NET_TYPE_DIRECT:
if (!(veth = virLXCProcessSetupInterfaceDirect(conn,
def,
net)))
goto cleanup;
break;
case VIR_DOMAIN_NET_TYPE_ETHERNET:
break;
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_LAST:
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unsupported network type %s"),
virDomainNetTypeToString(type));
goto cleanup;
}
/* Set bandwidth or warn if requested and not supported. */
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(type)) {
if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
"type '%s' is not implemented yet",
virDomainNetTypeToString(type));
}
}
(*veths)[(*nveths)-1] = veth;
if (VIR_STRDUP(def->nets[i]->ifname_guest_actual, veth) < 0)
goto cleanup;
/* Make sure all net definitions will have a name in the container */
if (!net->ifname_guest) {
if (virAsprintf(&net->ifname_guest, "eth%zu", niface) < 0)
return -1;
niface++;
}
}
ret = 0;
cleanup:
if (ret < 0) {
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr iface = def->nets[i];
virNetDevVPortProfilePtr vport = virDomainNetGetActualVirtPortProfile(iface);
if (vport && vport->virtPortType == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH)
ignore_value(virNetDevOpenvswitchRemovePort(
virDomainNetGetActualBridgeName(iface),
iface->ifname));
networkReleaseActualDevice(def, iface);
}
}
return ret;
}
int
qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ndisks; i++) {
if (qemuAssignDeviceDiskAlias(def, def->disks[i], qemuCaps) < 0)
return -1;
}
for (i = 0; i < def->nnets; i++) {
/* type='hostdev' interfaces are also on the hostdevs list,
* and will have their alias assigned with other hostdevs.
*/
if (virDomainNetGetActualType(def->nets[i])
!= VIR_DOMAIN_NET_TYPE_HOSTDEV &&
qemuAssignDeviceNetAlias(def, def->nets[i], i) < 0) {
return -1;
}
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE))
return 0;
for (i = 0; i < def->nfss; i++) {
if (virAsprintf(&def->fss[i]->info.alias, "fs%zu", i) < 0)
return -1;
}
for (i = 0; i < def->nsounds; i++) {
if (virAsprintf(&def->sounds[i]->info.alias, "sound%zu", i) < 0)
return -1;
}
for (i = 0; i < def->nhostdevs; i++) {
if (qemuAssignDeviceHostdevAlias(def, def->hostdevs[i], i) < 0)
return -1;
}
for (i = 0; i < def->nredirdevs; i++) {
if (qemuAssignDeviceRedirdevAlias(def, def->redirdevs[i], i) < 0)
return -1;
}
for (i = 0; i < def->nvideos; i++) {
if (virAsprintf(&def->videos[i]->info.alias, "video%zu", i) < 0)
return -1;
}
for (i = 0; i < def->ncontrollers; i++) {
if (qemuAssignDeviceControllerAlias(def, qemuCaps, def->controllers[i]) < 0)
return -1;
}
for (i = 0; i < def->ninputs; i++) {
if (virAsprintf(&def->inputs[i]->info.alias, "input%zu", i) < 0)
return -1;
}
for (i = 0; i < def->nparallels; i++) {
if (qemuAssignDeviceChrAlias(def, def->parallels[i], i) < 0)
return -1;
}
for (i = 0; i < def->nserials; i++) {
if (qemuAssignDeviceChrAlias(def, def->serials[i], i) < 0)
return -1;
}
for (i = 0; i < def->nchannels; i++) {
if (qemuAssignDeviceChrAlias(def, def->channels[i], i) < 0)
return -1;
}
for (i = 0; i < def->nconsoles; i++) {
if (qemuAssignDeviceChrAlias(def, def->consoles[i], i) < 0)
return -1;
}
for (i = 0; i < def->nhubs; i++) {
if (virAsprintf(&def->hubs[i]->info.alias, "hub%zu", i) < 0)
return -1;
}
for (i = 0; i < def->nshmems; i++) {
if (virAsprintf(&def->shmems[i]->info.alias, "shmem%zu", i) < 0)
return -1;
}
for (i = 0; i < def->nsmartcards; i++) {
if (virAsprintf(&def->smartcards[i]->info.alias, "smartcard%zu", i) < 0)
return -1;
}
if (def->watchdog) {
if (virAsprintf(&def->watchdog->info.alias, "watchdog%d", 0) < 0)
return -1;
}
if (def->memballoon) {
if (virAsprintf(&def->memballoon->info.alias, "balloon%d", 0) < 0)
return -1;
}
for (i = 0; i < def->nrngs; i++) {
if (qemuAssignDeviceRNGAlias(def->rngs[i], i) < 0)
return -1;
}
if (def->tpm) {
if (virAsprintf(&def->tpm->info.alias, "tpm%d", 0) < 0)
return -1;
}
for (i = 0; i < def->nmems; i++) {
if (virAsprintf(&def->mems[i]->info.alias, "dimm%zu", i) < 0)
return -1;
}
return 0;
}